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物理疗法与简易疼痛处理程序初期治疗腰背痛的比较:一项关于物理疗法的随机临床试验

世界核心医学期刊文摘（神经病学分册） 2005年第10期1卷 2-3页

作者： hay e.m. mullis R. Lewis m. 郭俊 Primary Care Sciences Res earch Centre Keele University Keele Staffordshire ST5 5BG United Kingdom Prof.

Background: Recommendations for the.m.nagement of low back pain in primary ca re emphasise the importance of recognising and addressing psychosocial factors a t an early stage. We compared the effectiveness of a brief pain- management pro gramme with physiotherapy incorporating manual therapy for the reduction of disa bility at 12 months in patients consulting primary care with subacute low back p ain. methods: For this pragmatic, multicentre, randomised clinical trial, eligib le participants consulted primary care with non- specific low back pain of less than 12 weeks’ duration. They were randomly assigned either a programme of pa in management (n=201) or manual therapy (n=201). The primary outcome was change in the score on the Roland and morris disability questionnaire at 12 months. Ana lysis was by intention to treat. Findings: Of 544 patients assessed for eligibil ity, 402 were recruited (mean age 40.6 years) and 329 (82% )- reached 12- mon th follow- up. mean disability scores were 13.8 (SD 4.8) for the pain- managem ent group and 13.3 (4.9) for the.m.nual- therapy group. The.m.an decreases in d isability scores were 8.8 (6.4) and 8.8 (6.1) at 12 months (difference 0 [95% CI - 1.3 to 1.4], p=0.99), and median numbers of physiotherapy visits per patie nt were three (IQR one to five) and four (two to five), respectively (p=0.001). One adverse reaction (an exacerbation of pain after the initial assessment) was recorded. Interpretation: Brief pain management techniques delivered by appropri ately trained clinicians offer an alternative to physiotherapy incorporating man ual therapy and could provide a more efficient first- line approach for managem ent of non- specific subacute low back pain in primary care.

关键词：初期治疗腰背痛随机临床试验非特异性下腰痛处理程序腰痛患者 orris 功能障碍心理社会因素持续时间

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A comparison of strategic mine planning approaches for in-pit crushing and conveying, and truck/shovel systems

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International Journal of mining Science and Technology 2018年第2期28卷 205-214页

作者： m.Nehring P.F.Knights m.S.Kizil e.hay School of mechanical and mining engineering The University of Queensland

In a global environment where energy and labor are becoming increasingly expensive, continuous mining systems such as In-Pit Crushing and Conveying(IPCC) systems have been advanced as offering a real alternative to conventional truck haulage systems. The implementation of IPCC systems in hard rock operations in open pit mines however requires different and more comprehensive planning approaches in order to adequately reflect the practical aspects associated with these. This paper investigates the impact that these approaches may have on the implementation of IPCC systems on a basic metalliferous deposit amenable to open pit exploitation. A strategic life of mine plan to provide numerous economic indicators for each approach is analyzed and compared to traditional truck haulage systems. The.m.ne planning and evaluation process highlights the increased overall resource recovery that may accompany the use of IPCC systems. This investigation also provides insights into the issues associated with IPCC and the scale and type of operation and orebody that is likely to provide a feasible alternative to truck haulage.

关键词： In pit crusher conveyor systems Strategic mine planning Resource recovery Surface metalliferous mining mine optimization Truck and shovel

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effect of tapping tools and date of tapping on Acacia polyacantha gum yield in South Kordofan State, Sudan

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Journal of Forestry Research 2011年第1期22卷 117-122页

作者： Idris musa Adam Kamal e.m. Fadl Agricultural Research Corporation Kadugli Research Station P.O. Box 10 Kadugli Sudan Agricultural Research Corporation El-Obied Research Station P.O. Box 429 El-Obied Sudan

A study was conducted in South Kordofan, Sudan to dete.m.ne the effect of tapping, tapping tools and date of tapping on the gum yield of Acacia polyacantha. A two-factor experiment was conducted for two seasons in 2008-2009. One location was used for two seasons and two locations for one season. The first factor （4 levels） was the tools of tapping： makmak, Farrar, and Sonki, and the control which was not tapped. The second factor （2 levels） was the date of tapping that comprises mid October and mid November. These treatments were arranged in Randomaized Complete Block Design and replicated three times. Gum yield （g/tree and g/ picking） was recorded for five pickings. economic analysis was done using the partial budget technique. The results showed highly significant （p 〈 0.01） differences on gum yield （g/picking and g/tree）. The results indicated that the process of tapping increases gum production by 88.4% and 79.8% compared with un-tapped trees, respectively. The date of tapping has no significant effect on gum yield （g/tree and g/picking） of A. polyacantha. Tapping of the tree with makmak in mid- November was found to be economically beneficial compared to using the other tools and the control. These results could identify a new source of income for the poor farmers in South Kordofan mainly because of the wild occurrence of Kakamut as a potential gum producing tree species grown naturally in the area.

关键词： Acacia polyacantha date of tapping gum yield Kakamut South Kordofan tapping tools

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Dete.m.nation of optimum tapping date for gum arabic production in South Kordofan State, Sudan

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Journal of Forestry Research 2011年第4期22卷 685-688页

作者： Idris musa Adam Kamal e.m. Fadl Agricultural Research Corporation Kadugli Research Station P.O. Box 10 Kadugli Sudan Agricultural Research Corporation El-Obeid Research Station P.O. Box 429 El-Obeid Sudan.

Acacia senegal, the gum arabic producing tree, is the.m.st important tree species for the livelihood of the people in South Kordofan State, Sudan. The objective of this study was to dete.m.ne the optimum tapping date for gum arabic production in the study area. A randomized complete block design experiment with three replications was conducted at （mead） area for two continuous growing seasons 2008/2009 - 2009/2010. The treatments comprised six tapping dates （1 Oct, 15 Oct, 1 Nov, 15 Nov, 1 Dec, and 15 Dec）. Results ishowed highly significant differences （p 〈 0.001） in gum arabic yield （g／tree） in all pickings and in the total gum yield between the tapping dates. The results also showed that tapping of trees on 15 October and 1 November gave a higher yield compared to the other dates. The highest gum yield of 1086.6 and 661.2 g/tree was recorded on 15 October and 15 November, while the lowest gum yield of 297.9 g/tree was recorded when the trees were tapped on 1 October. The two highest-yield dates of tapping （15 Oct and 1 Nov） are recommended as the best time for tapping for gum arabic production in South Kordofan State. These results can be used to increase gum arabic production and farmer income in South Kordofan State.

关键词： gum Arabic date of tapping agroforestry system SouthKordofan Sudan

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Column leaching of lanthanides from Abu Tartur phosphate ore with kinetic study

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Journal of Rare earths 2010年第4期28卷 576-580页

作者： A.T. Kandil m.m. Aly e.m. moussa A.m. Kamel m.m. Gouda m.N. Kouraim Chemistry Department Faculty of Science Helwan University Nuclear materials Authority P.O. Box 530 El Maadi Cairo Egypt

The dynamic leaching of lanthanides from a west desert phosphate ore, egypt (Abu Tartur) by hydrochloric acid, nitric acid and sulfuric acid solutions was investigated in this study as a function of acid concentration, flow rate and the presence of some additives such as boric acid. Also the kinetics of leaching of lanthanides was investigated as a function of temperature. It was found that the leaching process could be described by a shrinking-core.m.del, with activation energy about 5.9, 13.8 and 21.9 kJ/...

关键词： column leaching lanthanides Abu Tartur hydrochloric acid nitric acid sulfuric acid kinetics rare earths

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modeling of organic pollutant destruction in a stirred tank reactor by ozonation

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Journal of environmental Sciences 2001年第4期13卷 449-452页

作者： CHeNG Jiang YANG Zhuo-ru CHeN Huan-qin KUO C.H. ZAPPI e.m. College of Chemical engineering South China University of TechnologyGuangzhou 510641China Swalm School of Chemical engineering Mississippi State UniversityMS 39762StarkvilleUSA

Destruction of organic contaminants in water by ozonation is a gas-liquid process which involves ozone.m.ss transfer and fast irreversible chemical reactions. Ozonation reactor design and process optimizing require the.m.deling of the gas-liquid interactions within the reactor. In this paper a theoretical model combining the fluid dynamic and reaction kinetic parameters is proposed for predicting the destruction rates of organic pollutants in a semi-batch stirred-tank reactor by ozonation. A simple expression for the enhancement factor as our previous work has been applied to evaluate the chemical mass transfer coefficient in ozone absorption. 2,4-dichlorophenol (2,4-DCP) and 2,6-DCP or their mixture are chosen as the.m.del compounds for simulating, and the predicted DCP concentrations are compared with some.m.asured data.

关键词： dichlorophenol destruction ozonation stirred-tank reactor enhancement factor

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Recovery of some valuable elements from lamprophyre dykes in the Abu Rusheid area, Southeastern Desert, egypt

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Chinese Journal Of Geochemistry 2012年第1期31卷 64-73页

作者： Zaki D.I. Shawky N. el-Sheikh e.m. Ahmed F.Y. Ibrahim m.e. Nuclear materials Authority El MaadiP.O.Box 530 CairoEgypt Chemistry Dept. Faculty of Science for GirlAl-Azhar UniversityEgypt

In the Abu Rusheid area, Southeastern Desert of egypt, polymineralized (HRees, U, Zn and Pb) lam-prophyre dykes are recently recorded. The lamprophyre dykes cut cataclastic rocks along share zones in NNW-SSe trends. The secondary U-minerals are essentially represented by uranophane, kasolite, torbernite and autunite. ex-perimental work was carried out on the lamprophyre dykes for the recovery of uranium and other valuable elements (e.g. Zn, Pb and Al) from 50 kg of technological sample. The optimum conditions were: 100 g/L sulfuric acid con-centration, 1:5 S/L (solid/liquid) and soaking for 15 days at room temperature. The leaching efficiencies for the re-covery of uranium and other elements like Al, Zn and Pb were 40, 33.6, 98.8 and 78, respectively.

关键词：有价元素煌斑岩岩脉沙漠埃及价值最佳工艺条件实验工作

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The sexually dimorphic expression of glutamate transporters and their implication in pain after spinal cord injury

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Neural Regeneration Research 2025年第11期20卷 3317-3329页

作者： Jennifer m.Colón-mercado Aranza I.Torrado-Tapias Iris K.Salgado Jose.m.Santiago Samuel e.Ocasio Rivera Dina P.Bracho-Rincon Luis H.Pagan Rivera Jorge D.miranda Department of Physiology University of Puerto RicoMedical Sciences CampusSan JuanPRUSA National Institutes of Health National Human Genome Research InstituteBethesdaMDUSA Universidad Central del Caribe School of MedicineBayamónPRUSA University of Puerto Rico Carolina CampusCarolinaPRUSA Institute of Neurobiology San JuanPRUSA

In addition to the loss of motor function,~60% of patients develop pain after spinal cord *** cellular-molecular mechanisms are not well understood,but the data suggests that plasticity within the rostral,epicenter,and caudal penumbra of the injury site initiates a cellularmolecular interplay that acts as a rewiring mechanism leading to central neuropathic *** can lead to the formation of new connections triggering abnormal sensory *** excitatory glutamate transporters are responsible for the reuptake of extracellular glutamate which makes them a critical target to prevent neuronal hyperexcitability and *** previous studies showed a sexually dimorphic therapeutic window for spinal cord injury after treatment with the selective estrogen receptor modulator *** this study,we investigated the anti-allodynic effects of tamoxifen in male and female rats with spinal cord *** hypothesized that tamoxifen exerts anti-allodynic effects by increasing the expression of glutamate transporters,leading to reduced hyperexcitability of the secondary neuron or by decreasing aberrant *** and female rats received a moderate contusion to the thoracic spinal cord followed by subcutaneous slow-release treatment of tamoxifen or matrix pellets as a control(placebo).We used von Frey monofilaments and the“up-down method”to evaluate.m.chanical *** treatment decreased allodynia only in female rats with spinal cord injury revealing a sexdependent *** expression profile of glutamatergic transporters(excitatory amino acid transporter 1/glutamate aspartate transporter and excitatory amino acid transporter 2/glutamate transporter-1)revealed a sexual dimorphism in the rostral,epicenter,and caudal areas of the spinal cord with a pattern of expression primarily on *** rodents showed a significantly higher level of excitatory amino acid transporter-1 expression while.m.le rodents showed increased

关键词： allodynia central neuropathic pain eAAT-1/GLAST eAAT-2/GLT-1 glutamate transporters selective estrogen receptor modulator sexual dimorphism spinal cord injury trauma

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俯瞰美景的房间

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丛书名：奥斯卡金像奖小说丛书

1999年

作者： e.m.福斯特

来源：汇雅图书（南通市图书馆... 评论

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effect of Sand and Dust Storms on microwave Propagation Signals in Southern Libya

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Journal of energy and Power engineering 2011年第12期5卷 1199-1204页

作者： I.m. Saleh e.m. Abuhdima electrical and electronic Department AL-Fateh University Tripoli 7054 Libya General Communication Department General Post and Telecommunication Company Tripoli 7054 Libya

The propagation of electromagnetic waves in millimeter band is severely affected by rain, and dust particles in te.m. of attenuation and de-polarization. The computations of dust and/or sand storms require knowledge of electrical properties of the scattering particles and climate conditions at the studied region. To compute the effect of dust and sand particles on the propagation of electromagnetic waves, it is required to collect the sand particles carried out by the wind, measure the particles size, calculate the concentration, and carry chemical analysis of the contents, then the dielectric constant can be calculated. The.m.in object of this paper is to study the effect of sand and dust storms on wireless communication, such as microwave links, in the southern region of Libya （Sebha, Ashati, Obari, morzok, Ghat） by dete.m.ning the attenuation. The result showed that there is some consideration that has to be taken into account in the communication power budget.

关键词： Attenuation scattering transmission loss.

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