mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Removal of Crystal Violet from aqueous solution using powdered mycelial biomass of Ceriporia lacerata P2

A biosorbent prepared from powdered mycelial biomass of Ceriporia lacerata (CLB), a basidiomycetous fungus, was applied for the uptake of Crystal Violet from aqueous solution. A batch adsorption experiment was used for the biosorption process, involving effect of experimental factors and biosorption kinetics and equilibrium. Biosorption process showed that the removal of Crystal Violet by CLB was effective over wide pH range, and meanwhile was independent on ionic strength. Biosorption capacities of CLB increased with the initial dye concentration increasing, due to an increase in the driving force of the concentration gradient. The adsorbed Crystal Violet amount per unit biomass weight decreased with increasing biosorbent dosage, due to the splitting effect of flux (concentration gradient) between sorbate and biosorbent. A maximum sorption capacity of 239.25 mg/g was observed. Biosorption kinetics was found to be best represented by the pseudo second-order kinetic model. The equilibrium adsorption data was well described by the Koble-Corrigan model. FT-IR (Fourier Transform Infrared Spetroscopy) spectrum showed the presence of O-H, COOH, C=O, C-N, C-H, -NH_2 and P-OH in the surface of CLB as functional groups. This study showed CLB can effectively remove CV from dye wastewater.
Effects of humic acid on phytodegradation of petroleum hydrocarbons in soil simultaneously contaminated with heavy metals

The use of humic acid (HA) to enhance the efficiency of phytodegradation of petroleum hydrocarbons in soil contaminated with diesel fuel was evaluated in this study. A sample of soil was artificially contaminated with commercially available diesel fuel to an initial total petroleum hydrocarbons (TPH) concentration of 2300 mg/kg and four heavy metals with concentrations of 400 mg/kg for Pb, 200 mg/kg for Cu, 12 mg/kg for Cd, and 160 mg/kg for Ni. Three plant species, Brassica campestris, Festuca arundinacea, and Helianthus annuus, were selected for the phytodegradation experiment. Percentage degradation of TPH in the soil in a control pot supplemented with HA increased to 45% from 30% without HA. The addition of HA resulted in an increases in the removal of TPH from the soil in pots planted with B. campestris, F. arundinacea, and H. annuus, enhancing percentage degradation to 86%, 64%, and 85% from 45%, 54%, and 66%, respectively. The effect of HA was also observed in the degradation of n-alkanes within 30 days. The rates of removal of n-alkanes in soil planted with B. campestris and H. annuus were high for n-alkanes in the range of C11-C28. A dynamic increase in dehydrogenase activity was observed during the last 15 days of a 30-day experimental period in all the pots amended with HA. The enhanced biodegradation performance for TPHs observed might be due to an increase in microbial activities and bioavailable TPH in soils caused by combined effects of plants and HA. The results suggested that HA could act as an enhancing agent for phytodegradation of petroleum hydrocarbons in soil contaminated with diesel fuel and heavy metals.
Effects of relative humidity on the characterization of a photochemical smog chamber

Water vapor plays an important role in many atmospheric chemical reactions. A self-made indoor environmental smog chamber was used to investigate the effects of relative humidity (RH) on its characterization, which included the wall effects of reactive species such as O_3 and NOx, and the determination of chamber-dependent OH radicals in terms of CO-NOx irradiation experiments. Results showed that the rate constant of O_3 wall losses increased with increasing RH, and that their relationship was linearly significant. Although RH aflected the rate constant of NOx wall losses, their relationship was not statistically significant. Background air generated a small amount of ozone at both high and low RH. When RH varied from 5% to 79%, the apparent rate constant k_(NO2→HONO) for the conversion of NO_2 into gas phase HONO was estimated in the range of 0.70×10~(-3)-2.5×10~(-3) min~(-1). A linear relationship between k_(NO2→HONO) and RH was obtained as k_(NO2→HONO) (10~(-3) min~(-1)) = -0.0255RH + 2.64, with R2 and P value being 0.978 and < 0.01. To our knowledge, this is the first report on their relationship. The generation mechanism for HONO and OH was also discussed in this work.
Enhanced bioremediation of oil contaminated soil by graded modified Fenton oxidation

Graded modified Fenton’s (MF) oxidation is a strategy in which H_2O_2 is added intermittently to prevent a sharp temperature increase and undesired soil sterilization at soil circumneutral pH versus adding the same amount of H_2O_2 continuously.The primary objective of the present study was to investigate whether a mild MF pre-oxidation such as a stepwise addition of H_2O_2 can prevent sterilization and achieve a maximum degradation of tank oil in soil.Optimization experiments of graded MF oxidation were conducted using citric acid,oxalic acid and SOLV-X as iron chelators under different frequencies of H_2O_2 addition.The results indicated that the activity order of iron chelates decreased as:citric acid (51%) > SOLV-X (44%) > oxalic acid (9%),and citric acid was found to be an optimized iron chelating agent of graded MF oxidation.Three-time addition of H_2O_2 was found to be favorable and economical due to decreasing total petroleum hydrocarbon removal from three time addition (51%) to five time addition (59%).Biological experiments were conducted after graded MF oxidation of tank oil completed under optimum conditions mentioned above.After graded oxidation,substantially higher increase (31%) in microbial activity was observed with excessive H_2O_2 (1470 mmol/L,the mol ratio of H_2O_2:Fe~(2+) was 210:1) than that of non-oxidized soil.Removal efficiency of tank oil was up to 93% after four weeks.Especially,the oil fraction (C_(10)-C_(40)) became more biodagradable after graded MF oxidation than its absence.Therefore,graded MF oxidation is a mild pretreatment to achieve an effective bioremediation of oil contaminated soil.
Modeling the influence of ethanol on the adsorption and desorption of selected BTEX compounds on bentonite and kaolin

The influence of ethanol on the adsorption capacity and desorption kinetics of benzene and toluene on bentonite and kaolin through modeling and experimental study was investigated.The results showed that the adsorption capacity of both soils for the target compounds decreased as ethanol content increased.As ethanol content increased from 0 to 50%,the adsorption capacity for benzene and toluene on bentonite decreased from 3.6 to 0.54 μg~(n+1)/(L~n ·g) (by 85%) and 1.91 to 0.01 μg~(n+1)/(L~n ·g) (by 99.5%),respectively.For benzene and toluene adsorption on kaolin,the adsorption capacity decreased by 86.5% (from 0.26 to 0.04 μg~(n+1)/(L~n ·g) and 98.2% (from 0.13 to 0.002 μg~(n+1)/(L~n ·g)),respectively,as ethanol content increased from 0 to 50%.In addition,the desorption rate of benzene and toluene from bentonite decreased by about one order of magnitude as the ethanol increased from 0 to 25% and 0 to 50%,respectively.It can be inferred that ethanol could affect the effectiveness of natural attenuation processes that rely on adsorption to soils as a containment technique for benzene and toluene by retarding the adsorption to soils and remobilizing compounds that had already been adsorbed to soils.
Frequency comparative study of coal-fired fly ash acoustic agglomeration

Particulate pollution is main kind of atmospheric pollution.The fine particles are seriously harmful to human health and environment.Acoustic agglomeration is considered as a promising pretreatment technology for fine particle agglomeration.The mechanisms of acoustic agglomeration are very complex and the agglomeration efficiency is affected by many factors.The most important and controversial factor is frequency.Comparative studies between high-frequency and low-frequency sound source to agglomerate coal- fired fly ash were carried out to investigate the influence of frequency on agglomeration efficiency.Acoustic agglomeration theoretical analysis,experimental particle size distributions (PSDs) and orthogonal design were examined.The results showed that the 20 kHz high-frequency sound source was not suitable to agglomerate coal-fired fly ash.Only within the size ranging from 0.2 to 0.25 μm the particles agglomerated to adhere together,and the agglomerated particles were smaller than 2.5 μm.The application of low-frequency (1000-1800 Hz) sound source was proved as an advisable pretreatment with the highest agglomeration efficiency of 75.3%,and all the number concentrations within the measuring range decreased.Orthogonal design L16 (4)~3 was introduced to determine the optimum frequency and optimize acoustic agglomeration condition.According to the results of orthogonal analysis,frequency was the dominant factor of coal-fired fly ash acoustic agglomeration and the optimum frequency was 1400 Hz.
Computing payment for ecosystem services in watersheds: An analysis of the Middle Route Project of South-to-North Water Diversion in China

Payment for ecosystem services (PES) has attracted considerable attention as an economic incentive for promoting natural resource management recently. As emphasis has been placed on using the incentive-based mechanism by the central government, rapid progress on PES research and practice has been achieved. However PES still faces many difficulties. A key issue is the lack of a fully-fledged theory and method to clearly define the design scope, accounting and feasibility of PES criteria. An improved watershed criteria model was developed in light of research on PES practices in China, investigations on the water source area for the Middle Route Project of South-to-North Water Diversion and ecosystem services outflows theory. The basic principle of assessment is the direct and opportunity cost for ecological conservation and environmental protection in the water source area deduct nationally-financed PES and internal effect. Then the scope and the criteria methods were determined, and internal effect was put forward to define benefits brought from water source area. Finally, Shiyan City, which is the main water source area for the Project of Water Diversion, was analyzed by this model and its payment was calculated. The results showed that: (1) during 2003-2050, the total direct cost and opportunity cost would reach up to 262.70 billion and 256.33 billion Chinese Yuan (CNY, 2000 constant prices), i.e., 50.61% and 49.38% of total cost, respectively; (2) Shiyan City would gain 0.23, 0.06 and 0.03 CNY/m3 in 2014-2020, 2021-2030, and 2031-2050, respectively.
六线鱼科鱼类特殊体色与繁殖特性

六线鱼科(Hexagrammidae)隶属鳓形目(Scorpaeniformes)，六线鱼亚目(Hexagrammoidei)。六线鱼属(Hexagrammos)最大的特点就是身体具有多条侧线，由于其中的斑头鱼仅仅具有一条侧线而被另外立新属，斑头鱼属(agrammus)，但是更多的学者还是习惯于将斑头鱼归为六线鱼属。因此六线鱼科鱼类就是包括六线鱼属在内共5属12种（或6属12种）。六线鱼科的鱼类统称的英文名为greenling，类似于石斑鱼的grouper以及鲆鲽类的flatfish。如果严格区分，在文献中具有英文名称greenling的六线鱼科鱼类仅仅有9种（表1）。中国分布的六线鱼科鱼类仅有4种，分别为斑头鱼、大泷六线鱼、长线六线鱼、叉线六线鱼‘1]。关于六线鱼科鱼类中英文、拉丁文、分布及主要特征详见表1。
连续变量的相关与回归分析

连续变量的相关与回归分析有时也称为线性相关与线性回归,它们都是分析变量间关系的方法,但侧重目的不同。线性相关是分析变量间的相互依存关系,即两个或多个变量不区分主次关系,重在解释变量间的关联。而线性回归分析的变量有主次之分,侧重分析自变量对因变量的影响。如研究身高与体重的关系,这两个指标是相互关联的,可采用线性相关分析。如果要分析体重对血压值的影响,此时我们侧重观察血压值随体重的变化而变化的趋势,而不是体重随血压值变化的情况,因此需采用线性回归分析。
四川盆地龙岗和罗家寨-普光地区二、三叠系长兴-飞仙关组礁滩体天然气成藏对比研究与意义

四川盆地龙岗和罗家寨-普光地区都发现了二、三叠系礁、滩体天然气藏,但气藏规模、丰度与分布差异较大。二者既有共性,更有差异。共性是: (1)礁、滩储集体岩性、物性及储集空间类型基本一致;(2)都具有良好的盖层条件,流体系统封闭性较好;(3)都存在液态烃早期充注、后期热裂解生气与抬升阶段气藏调整、晚期定型。差异性是: (1)罗家寨-普光地区以油型裂解气为主,多源供给,气源充足;龙岗地区以煤型气为主,气源充分性较差;(2)龙岗地区储层非均质性更强,横向变化较大;(3)罗家寨-普光地区深大断裂发育,"源-储-输"匹配较好,龙岗地区断层较少,裂缝输导为主,横向变化较大。上述差异导致罗家寨-普光地区发育高丰度构造型气藏,规模与整装性较好,龙岗地区岩性控制更明显,丰度、规模与整装性较差。指出下一步针对礁、滩体气藏的研究应该向川东北、川西北九龙山等地区拓展,应特别加大对龙岗与开江-梁平海过渡区新层系的研究和探索,努力获得新发现.
Perturbation of Wood Cellulose Synthesis Causes Pleiotropic Effects in Transgenic Aspen

Genetic manipulation of cellulose biosynthesis in trees may provide novel insights into the growth and development of trees. To explore this possibility, the overexpression of an aspen secondary wall-associated cellulose synthase (PtdCesA8) gene was attempted in transgenic aspen (Populus tremuloides L.) and unexpectedly resulted in silencing of the transgene as well as its endogenous counterparts. The main axis of the transgenic aspen plants quickly stopped growing, and weak branches adopted a weeping growth habit. Furthermore, transgenic plants initially developed smaller leaves and a less extensive root system. Secondary xylem (wood) of transgenic aspen plants contained as little as 10% cellulose normalized to dry weight compared to 41% cellulose typically found in normal aspen wood. This massive reduction in cellulose was accompanied by proportional increases in lignin (35%) and non-cellulosic polysaccharides (55%) compared to the 22% lignin and 36% non-cellulosic polysaccharides in control plants. The transgenic stems produced typical collapsed or 'irregular' xylem vessels that had altered secondary wall morphology and contained greatly reduced amounts of crystalline cellulose. These results demonstrate the fundamental role of secondary wall cellulose within the secondary xylem in maintaining the strength and structural integrity required to establish the vertical growth habit in trees.
Probing the lower ionospheric perturbations associated with earthquakes by means of subionospheric VLF/LF propagation

There have been reports for many years that the ionosphere is very sensitive to seismic effects, and the detection of ionospheric perturbations associated with earthquakes(EQs) attracts a lot of attention as a very promising candidate for short-term EQ prediction.In this review we present a possible use of VLF/LF (very low frequency(3-30 kHz)/low frequency(30-300 kHz)) radio sounding of seismo-ionospheric perturbations. In order to avoid the overlapping with my own previous reviews,we first show some pioneering results for the Kobe EQ and we try to present the latest results including the statistical evidence on the correlation between the VLF/LF propagation anomalies(ionospheric perturbations) and EQs(especially with large magnitude and with shallow depth),medium-distance(6-8 Mm) propagation anomalies,the fluctuation spectra of subionospheric VLF/LF data(the effect of atmospheric gravity waves,the effect of Earth’s tides,etc.),and the mechanism of lithosphere-atmosphere-ionosphere coupling.Finally,we indicate the present situation of this kind of VLF/LF activities going on in different parts of the globe and we suggest the importance of international collaboration in this seismo-electromagnetic study.
The ultra-low-frequency magnetic disturbances associated with earthquakes

The ultra-low-frequency(ULF) electromagnetic emission is recently recognized as one of the most promising candidates for short-term earthquake(EQ) prediction.This paper reviews previous convincing evidence on the presence of ULF emissions before three major EQs.Then,we present further statistical study on the ULF occurrence,our networks of ULF monitoring in different spatial scales in Japan and finally we present several signal processings to identify the seismogenic emissions by showing latest results for recent large EQs.
Single plus one port laparoscopic radical prostatectomy: a report of 8 cases in one center

Laparoscopic radical prostatectomy is considered the first treatment of choice for local prostate cancer due to its minimal invasion advantage. To further achieve the goal of minimal invasion, single port laparoscopic radical prostatectomy has been developed to minimize the complications associated with puncture tracks. The aim of this study was to illustrate the technique for single port laparoscopic radical prostatectomy and evaluate its efficacy and safety. We reported 8 cases of radical prostatectomy with excellent early outcome carried out in Shanghai Changzheng Hospital from June 2009 to August 2009 using a home-made multiple instrument access port and adding an additional small incision at McBurney point.
Effect of low-dose fenvalerate on semen quality capacitation in adult mice

Background Fenvalerate (FEN) has been demonstrated to be a reproductive toxicant in humans and rodents. However, little is known about whether short-term exposure to low-dose FEN produces reproductive toxicity. Methods We administered FEN (0.009 375, 0.1875, 3.750, or 45.00 mg·kg~(-1)·d~(-1) by gavage for 30 days) to male ICR mice and compared reproductive toxicity parameters between groups receiving different concentrations of FEN. Reproductive toxicity was evaluated by computer-assisted semen quality analysis (CASA), chlortetracycline (CTC) assay, and histopathology. Results The sperm morphology and testis histology of FEN-exposed mice (all doses) were similar to that in controlling mice. Exposure to FEN at a concentration of 0.1875 mg·kg~(-1)·d~(-1) decreased sperm path straightness (STR) and linearity (LIN) (both P < 0.05), but had no significant impact on average path velocity (VAP), straight line velocity (VSL), curvilinear velocity (VCL), lateral amplitude (ALH), beat cross frequency (BCF), or progressive motility (MOT). FEN reduced the rate of mouse sperm capacitation in a dose-dependent manner. Conclusion The present results demonstrate that exposure to low-dose FEN for 30 days reduces semen quality and sperm capacitation in adult mice.
Effects of inhaled nitric oxide in neonatal hypoxemic respiratory failure from a multicenter controlled trial

Background Hypoxemic respiratory failure (HRF) is one of the most common causes for neonatal infants requiring aggressive respiratory support. Inhaled nitric oxide (iNO) has been established routinely as an adjunct to conventional respiratory support in developed countries. The aim of this study was to investigate effects of iNO in neonates with HRF in resource limited condition with no or limited use of surfactant, high frequency oscillatory ventilation (HFOV) and extracorporeal membrane oxygenation. Methods A non-randomized, open, controlled study of efficacy of iNO was conducted over 18 months. Eligible term and near-term neonates from 28 hospitals with HRF (oxygenation index >15) were enrolled prospectively into two groups as either iNO or control. Oxygenation improvement and mortality as primary endpoint were determined in relation with dosing and timing of iNO, severity of underlying diseases, complications and burden. Intention-to-treat principle was adopted for outcome assessment. Response to iNO at 10 or 20 parts per million (ppm) was determined by oxygenation in reference to the control (between-group) and the baseline (within-group). Results Compared to 93 controls, initial dose of iNO at 10 ppm in 107 treated infants significantly improved oxygenation from first hour (P=0.046), with more partial- and non-responders improved oxygenation with subsequent 20 ppm NO (P=0.018). This effect persisted on days 1 and 3, and resulted in relatively lower mortalities (11.2% vs. 15%) whereas fewer were treated with surfactant (10% vs. 27%), HFOV (<5%) or postnatal corticosteroids (<10%) in both groups. The overall outcomes at 28 days of postnatal life in the iNO-treated was not related to perinatal asphyxia, underlying diseases, severity of hypoxemia, or complications, but to the early use of iNO. The cost of hospital stay was not significantly different in both groups. Conclusions With relatively limited use of surfactant and/or HFOV in neonatal HRF, significantly more responders were found in the iNO-treated patients as reflected by improved oxygenation in the first three days over the baseline level. It warrants a randomized, controlled trial for assessment of appropriate timing and long-term outcome of iNO.
胞质DNA感受器的研究进展

病原微生物入侵可激活宿主免疫系统产生抗感染免疫应答。宿主的抗病原微生物免疫应答可分两个阶段：固有免疫和适应性免疫应答。固有免疫是抵抗病原微生物的第一道防线，是物种进化过程中逐渐形成的，可通过感受器识别入侵的病原微生物，并迅速激活固有免疫应答，进而激活适应性免疫应答并限制病原微生物的扩散。宿主免疫细胞是通过模式识别受体（pattern recognition receptors,PRR）识别病原体相关分子模式（pathogen-associated molecular patterns,PAMP）来启动固有免疫应答。DNA是一种重要的病原体相关分子模式。本综述就目前已报道的固有免疫DNA感受器及其最新研究进展作一介绍和总结。
广东省农业科研机构转制的效果评价——以广东省农科院部分研究所为例

以广东省农科院5个研究所为例,通过设计、发放调查问卷,走访,数据采集等形式,对这些转制型农业科研机构服务"三农"的现状进行调查,探讨广东省农业科研机构转制的成效,并分析其存在的问题,以期为更好地促进农业科研机构发挥服务"三农"的优势以及实现农业产业化的良性循环奠定基础。
河南省耕地畜禽粪便负荷分析

通过对河南省畜禽养殖数量、养殖结构进行统计,结合各地区的耕地面积粗略估算耕地畜禽粪便负荷,对河南省畜禽粪便负荷承受程度进行预警与分级,分析各地区的畜禽养殖业发展潜力。结果表明,河南省畜禽粪便猪粪当量负荷对环境构成了不同程度的威胁,提出了在大力发展畜禽养殖业的同时应合理规划区域畜禽养殖业布局。
Reproductive biology of an old endemic murid rodent of Australia, the Spinifex hopping mouse, Notomys alexis: adaptations for life in the arid zone

The Spinifex hopping mouse (Notomys alexis Thomas, 1922) is an arid adapted Australo–Papuan old endemic rodent that undergoes boom and bust population cycles. In this communication, we review our findings on the timing of reproduction and the potential reproductive rate of this species. To investigate the first question, the reproductive condition of adult females, and occurrence of immatures, in a population on a cattle station in central Australia was determined and, for the second, data from a laboratory colony compared to those previously published on closely related species in other environments. The findings show that, at least in the population at the times that monitoring was performed, reproductive activity was only taking place in spring and early summer, whereas the laboratory study indicates that females have a similar gestation length and litter size to those of most close relatives occurring in other environments. Males have extremely small testes and store relatively few sperm. The findings suggest that Notomys alexis might show some seasonality of reproduction at least in this region of central Australia and that this species does not have a higher reproductive rate than that of related species in other, more predictable, environments.
Spatial Distribution of Large-scale Landslides Induced by the 5.12 Wenchuan Earthquake

The 5.12 Wenchuan Earthquake in 2008 induced hundreds of large-scale landslides. This paper systematically analyzes 112 large-scale landslides (surface area > 50000 m~2), which were identified by interpretation of remote sensing imagery and field investigations. The analysis suggests that the distribution of large-scale landslides is affected by the following four factors: (a) distance effect: 80% of studied large-scale landslides are located within a distance of 5 km from the seismic faults. The farther the distance to the faults, the lower the number of large-scale landslides; (b) locked segment effect: the large-scale landslides are mainly located in five concentration zones closely related with the crossing, staggering and transfer sections between one seismic fault section and the next one, as well as the end of the NE fault section. The zone with the highest concentration was the Hongbai-Chaping segment, where a great number of large-scale landslides including the two largest landslides were located. The second highest concentration of large-scale landslides was observed in the Nanba-Donghekou segment at the end of NE fault, where the Donghekou landslide and the Woqian landslide occurred; (c) Hanging wall effect: about 70% of the large-scale landslides occurred on the hanging wall of the seismic faults; and (d) direction effect: in valleys perpendicular to the seismic faults, the density of large-scale landslides on the slopes facing the seismic wave is obviously higher than that on the slopes dipping in the same direction as the direction of propagation of the seismic wave. Meanwhile, it is found that the sliding and moving directions of large-scale landslides are related to the staggering direction of the faults in each section. In Qingchuan County where the main fault activity was horizontal twisting and staggering, a considerable number of landslides showed the feature of sliding and moving in NE direction which coincides with the staggering direction of the seismic faults.