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Sample records for repeated saline injections

  1. Electroacupuncture Reduces Hyperalgesia after Injections of Acidic Saline in Rats

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    Leonardo Yung dos Santos Maciel

    2014-01-01

    Full Text Available Background. Injections of acidic saline into the gastrocnemius muscle in rats produce a bilateral long-lasting hyperalgesia similar to fibromyalgia in humans. No previous study investigated the effect of electroacupuncture (EA on this acidic saline model. This study aimed to identify the effects of EA in the hyperalgesia produced by repeated intramuscular injections of acidic saline. Methods. Rats were divided into four groups (n=6, each group: control, acupuncture, EA 15 Hz, and 100 Hz. Left gastrocnemius muscle was injected with 100 μL of pH 4.0 sterile saline twice five days apart. EA, acupuncture, or control therapy was daily administered (20 min for 5 consecutive days under anesthesia. Needles were placed in the St36 and Sp6 acupoints. The assessment of secondary mechanical hyperalgesia, thermal hyperalgesia, and motor performance was performed before injections and before and after the treatment performed on each day. The paw withdrawal threshold was tested using the nonparametric Kruskal-Wallis test and differences within the group Wilcoxon Matched Pairs. The latency and motor performance were tested for ANOVA parametric test for independent measures, and for differences in the group, we used t-test for paired samples. Post hoc Tukey test was used for multiple corrections. P values ​​less than 0.05 were considered statistically significant. Results. Indicate that there was a significant reduction of mechanical withdrawal threshold and paw withdrawal latency 24 hours following the second injection. Moreover, mechanical and thermal hyperalgesia were significantly reversed by EA 15, 100 Hz, and acupuncture. Conclusions. The results suggest that EA high and low frequency as well as acupuncture are effective in reducing hyperalgesia in chronic muscle pain model.

  2. Injection of adjuvant but not acidic saline into craniofacial muscle evokes nociceptive behaviors and neuropeptide expression.

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    Ambalavanar, R; Yallampalli, C; Yallampalli, U; Dessem, D

    2007-11-09

    Craniofacial muscle pain including muscular temporomandibular disorders accounts for a substantial portion of all pain perceived in the head and neck region. In spite of its high clinical prevalence, the mechanisms of chronic craniofacial muscle pain are not well understood. Injection of acidic saline into rodent hindlimb muscles produces pathologies which resemble muscular pathologies in chronic pain patients. Here we investigated whether analogous transformations occur following repeated injections of acidic saline into the rat masseter muscle. Injection of acidic saline (pH 4) into the masseter muscle transiently lowered i.m. pH to levels comparable to those reported for rodent hindlimb muscles. Nevertheless, repeated unilateral or bilateral injections of acidic saline (pH 4) into the masseter muscle failed to alter nociceptive behavioral responses as occurs in the hindlimb. Changing the pH of injected saline to pH 3.0 or 5.0 also did not evoke nocifensive behavior. Acid sensing ion channel 3 receptors, which are implicated in transformations following acidification of hindlimb muscles, were found on trigeminal ganglion muscle afferent neurons via combined neuronal tracing and immunocytochemistry. In contrast to the acidic saline, injection of complete Freund's adjuvant (CFA) into the masseter muscle induced mechanical allodynia for 3 weeks, thermal hyperalgesia for 1 week and an increase in the number of calcitonin gene-related peptide (CGRP)-immunoreactive muscle afferent neurons in the trigeminal ganglion. Although pH may alter CGRP release in primary afferent neurons, the number of CGRP-muscle afferent neurons did not change following i.m. injection of acidic saline. Further, there was no change in ganglionic iCGRP levels at 1, 4 or 12 days after i.m. injection of acidic saline. While these findings extend our earlier reports that CFA-induced muscle inflammation results in behavioral and neuropeptide changes they further suggest that i.m. acidification in

  3. Injection and trapping of carbon dioxide in deep saline aquifers

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    Saylor, B.Z.; Zerai, B. [Case Western Reserve University, Cleveland, OH (United States). Dept. of Geological Sciences

    2004-10-22

    Carbon dioxide collected from the waste streams of point sources can be injected into deep geologic formations in order to limit the emission of greenhouse gases to the atmosphere. Deep saline aquifers provide the largest potential subsurface storage capacity for injected CO{sub 2}. Once injected, free CO{sub 2} can be retained in deep aquifers for long time periods by slow-moving, downward-directed formation waters. Over time, the injected CO{sub 2} will dissolve in the formation waters and through reactions with formation minerals, may be converted to carbonate minerals, resulting in permanent sequestration. Factors that influence the mass of CO{sub 2} that can be injected and stored in free or aqueous form, and as mineral phases, are reviewed and applied to estimate storage capacity of the Rose Run Sandstone, a saline aquifer beneath eastern Ohio, USA. It is estimated that 30 years of CO{sub 2} emissions from five of Ohio's largest coal-fired power plants can be injected into the Rose Run Sandstone and, over time, converted to aqueous and ultimately, mineral phases. 48 refs., 7 figs., 2 tabs.

  4. Simulations of CO2 injection in saline aquifer formations

    OpenAIRE

    Lågeide, Lars Andreas

    2009-01-01

    This thesis is devoted to studies of long term storage of carbon dioxide in geological formations such as saline aquifers. The goal of the thesis is to contribute to the development of a totally integrated storage evaluation tool which considers reactive transport as well as geomechanics. Our secondary goal was to investigate the effects of introducing a fracture in the confining cap rock with respect to the mechanical and chemical aspects of gas injections. In order to safely assume that...

  5. Mysteries behind the Low Salinity Water Injection Technique

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    Emad Waleed Al-Shalabi

    2014-01-01

    Full Text Available Low salinity water injection (LSWI is gaining popularity as an improved oil recovery technique in both secondary and tertiary injection modes. The objective of this paper is to investigate the main mechanisms behind the LSWI effect on oil recovery from carbonates through history-matching of a recently published coreflood. This paper includes a description of the seawater cycle match and two proposed methods to history-match the LSWI cycles using the UTCHEM simulator. The sensitivity of residual oil saturation, capillary pressure curve, and relative permeability parameters (endpoints and Corey’s exponents on LSWI is evaluated in this work. Results showed that wettability alteration is still believed to be the main contributor to the LSWI effect on oil recovery in carbonates through successfully history matching both oil recovery and pressure drop data. Moreover, tuning residual oil saturation and relative permeability parameters including endpoints and exponents is essential for a good data match. Also, the incremental oil recovery obtained by LSWI is mainly controlled by oil relative permeability parameters rather than water relative permeability parameters. The findings of this paper help to gain more insight into this uncertain IOR technique and propose a mechanistic model for oil recovery predictions.

  6. Saline as the Sole Contrast Agent for Successful MRI-guided Epidural Injections

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    Deli, Martin, E-mail: martin.deli@web.de [University of Witten/Herdecke, Department of Radiology and Microtherapy, Groenemeyer Institute for Microtherapy (GIMT) (Germany); Fritz, Jan, E-mail: jfritz9@jhmi.edu [Johns Hopkins University School of Medicine, Russell H. Morgan Department of Radiology and Radiological Science (United States); Mateiescu, Serban, E-mail: mateiescu@microtherapy.de; Busch, Martin, E-mail: busch@microtherapy.de [University of Witten/Herdecke, Department of Radiology and Microtherapy, Groenemeyer Institute for Microtherapy (GIMT) (Germany); Carrino, John A., E-mail: jcarrin2@jhmi.edu [Johns Hopkins University School of Medicine, Russell H. Morgan Department of Radiology and Radiological Science (United States); Becker, Jan, E-mail: j.becker@microtherapy.de; Garmer, Marietta, E-mail: garmer@microtherapy.de; Groenemeyer, Dietrich, E-mail: dg@microtherapy.de [University of Witten/Herdecke, Department of Radiology and Microtherapy, Groenemeyer Institute for Microtherapy (GIMT) (Germany)

    2013-06-15

    Purpose. To assess the performance of sterile saline solution as the sole contrast agent for percutaneous magnetic resonance imaging (MRI)-guided epidural injections at 1.5 T. Methods. A retrospective analysis of two different techniques of MRI-guided epidural injections was performed with either gadolinium-enhanced saline solution or sterile saline solution for documentation of the epidural location of the needle tip. T1-weighted spoiled gradient echo (FLASH) images or T2-weighted single-shot turbo spin echo (HASTE) images visualized the test injectants. Methods were compared by technical success rate, image quality, table time, and rate of complications. Results. 105 MRI-guided epidural injections (12 of 105 with gadolinium-enhanced saline solution and 93 of 105 with sterile saline solution) were performed successfully and without complications. Visualization of sterile saline solution and gadolinium-enhanced saline solution was sufficient, good, or excellent in all 105 interventions. For either test injectant, quantitative image analysis demonstrated comparable high contrast-to-noise ratios of test injectants to adjacent body substances with reliable statistical significance levels (p < 0.001). The mean table time was 22 {+-} 9 min in the gadolinium-enhanced saline solution group and 22 {+-} 8 min in the saline solution group (p = 0.75). Conclusion. Sterile saline is suitable as the sole contrast agent for successful and safe percutaneous MRI-guided epidural drug delivery at 1.5 T.

  7. Improved characterization of heterogeneous permeability in saline aquifers from transient pressure data during freshwater injection

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    Kang, Peter K.; Lee, Jonghyun; Fu, Xiaojing; Lee, Seunghak; Kitanidis, Peter K.; Juanes, Ruben

    2017-05-01

    Managing recharge of freshwater into saline aquifers requires accurate estimation of the heterogeneous permeability field for maximizing injection and recovery efficiency. Here we present a methodology for subsurface characterization in saline aquifers that takes advantage of the density difference between the injected freshwater and the ambient saline groundwater. We combine high-resolution forward modeling of density-driven flow with an efficient Bayesian geostatistical inversion algorithm. In the presence of a density difference between the injected and ambient fluids due to differences in salinity, the pressure field is coupled to the spatial distribution of salinity. This coupling renders the pressure field transient: the time evolution of the salinity distribution controls the density distribution which then leads to a time-evolving pressure distribution. We exploit this coupling between pressure and salinity to obtain an improved characterization of the permeability field without multiple pumping tests or additional salinity measurements. We show that the inversion performance improves with an increase in the mixed convection ratio—the relative importance between viscous forces from injection and buoyancy forces from density difference. Our work shows that measuring transient pressure data at multiple sampling points during freshwater injection into saline aquifers can be an effective strategy for aquifer characterization, key to the successful management of aquifer recharge.

  8. Repeated injections of orexin-A developed behavioral tolerance to its analgesic effects in rats

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    Elmira Ghasemi

    2015-12-01

    Full Text Available Objective(s:Reduction of pharmacological effectiveness or tolerance appears following repeated administration of many analgesic drugs. We investigated tolerance to anti-nociceptive effects of orexin-A, an endogenous potent analgesic peptide using the hot-plate test.Materials and Methods:Orexin-A was microinjected ICV (intracerebroventricular with an interval of 12 hr for 7 continuous days and its anti-nociceptive responses were measured on days 1, 4 and 7 using the hot-plate test following the first day of administration. Orexin-A was used at a dose of 100 pmol to induce analgesic effects. Results:ICV administration of orexin-A produced an effective anti-nociception on the first day of experiment as measured by hot-plate 5, 15, and 30 min after the injection, in comparison with both baselines (hot-plate test one day before the beginning of orexin-A administration and control, saline-administrated group. However, repeated administration of orexin-A on the following days revealed a significant reduction in this analgesic effect during day 4 to day 7. However, to rule out any associative tolerance resulting from learning related to experimental procedures and/or environmental cues, a single injection of orexin-A was administrated to animals of control group (which were receiving saline during 7 days of experiments and the analgesic effect was observed. Conclusion:These results, for the first time, indicated the appearance of tolerance to anti-nociceptive effects of orexin-A, following repeated administrations of this agent.

  9. Responsiveness of 5-HT2C receptors in repeatedly diazepam-injected rats: a behavioral and neurochemical study.

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    Khan, Asma; Haleem, Darakhshan J

    2008-01-01

    The role of 5-hydroxytryptamine (serotonin; 5-HT)2C receptors in anxiety and the anxiolytic effects of drugs is well documented. In view of the withdrawal anxiety associated with repeated diazepam intake, the present study concerns the efficacy of 5-HT2C receptors in rats treated with diazepam. Results show that diazepam injections at a dose of 2 mg/kg daily for two weeks increased weekly food intake and growth rate. Anxiolytic effects of the drug monitored in a light/dark activity box were not significant after single administration. One week and two weeks of administration elicited anxiolytic effects, which were smaller after two weeks of administration as compared to one week, suggesting the development of tolerance to the anxiolytic profile of diazepam. Moreover, three days' withdrawal from repeated administration elicited anxiogenic behavior in the light/dark activity box. The behavioral and neurochemical effects of 1-(m-chlorophenyl)piperazine (m-CPP) (3 mg/kg), a 5-HT2C agonist, were monitored following withdrawal (three days) from two weeks of diazepam administration. Results showed that hypophagic as well as anxiogenic-like effects of m-CPP were not different from repeated saline or repeated diazepam-injected animals. Administration of m-CPP increased 5-HT metabolism in repeated saline as well as repeated diazepam-injected animals. However, m-CPP-induced increases in 5-HT metabolism were greater in repeated diazepam-injected animals. Results are discussed in the context of the role of 5-HT2C receptors in the precipitation of withdrawal anxiety.

  10. A fast alternative to core plug tests for optimising injection water salinity for EOR

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    Hassenkam, Tue; Andersson, Martin Peter; Hilner, Emelie Kristin Margareta

    2014-01-01

    the relationship between the wettability of pore surfaces and water salinity. We functionalise AFM tips with organic molecules and use them to represent tiny oil droplets of nonpolar or polar molecules and we use sand grains removed from core plugs to represent the pore walls in sandstone. We bring our "oil" close......Core tests have demonstrated that decreasing the salinity of injection water can increase oil recovery. Although recovery is enhanced by simply decreasing salt content, optimising injection water salinty would offer a clear economic advantage for several reasons. Too low salinity risks swelling...... of the clays which would lead to permanent reservoir damage but evidence of effectiveness at moderate salinity would offer the opportunity to dispose of produced water. The goal is to define boundary conditions so injection water salinity is high enough to prevent reservoir damage and low enough to induce...

  11. Experimental investigation of injectivity alteration due to salt precipitation during CO2 sequestration in saline aquifers

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    Jeddizahed, Javad; Rostami, Behzad

    2016-10-01

    Injection of CO2 into saline aquifers causes the geochemical reaction of rock-fluid and salt precipitation due to the evaporation of water as a physical process. Well injectivity is an important issue in carbon capture and storage (CCS) projects because large volumes of CO2 must be stored for a long time and salt precipitation can significantly reduce injectivity by reducing the permeability. The impact of salt precipitation on the injectivity must therefore be specified in order to maintain the security of CCS projects and enable them to perform at a high level of practicality. The objective of this work is to investigate the influence of the injection rate and brine salinity on injectivity reduction due to evaporation and salt precipitation. In this study, we injected supercritical CO2 into a sandstone rock sample fully saturated with NaCl brine to characterize the salt precipitation induced by the evaporation process. Evaporation is investigated by mass measurement of the water and vapor produced. The extension in time of salt precipitation and the precipitation profile are analyzed by drying rate measurement, Capillary number and Peclet number. The consequences of salt precipitation on injectivity are specified by permeability and relative permeability analysis. The results show that a high drying rate in the early stage of injection induces rapid salt precipitation. The level of salt precipitation increases with salinity, within a permeability reduction range of 21-66%, and decreases with the injection rate, within a permeability reduction range of 43-62%. The relative permeability of CO2 is affected by both the injection rate and salinity.

  12. Interfacial Evolution and Migration Characteristics of Acid Gas Injected into a Saline Aquifer

    Institute of Scientific and Technical Information of China (English)

    YU Bo; LIU Yongzhong; LIANG Xiaoqiang; WANG Le

    2013-01-01

    Acid gas injection into saline aquifers is one of promising ways to reduce greenhouse gas emissions and to dispose hazardous waste simultaneously.On the basis of Level Set method,an improved mathematical model that described interfacial dynamics of acid gas-brine system in a deep confined saline aquifer was proposed for predicting the propagation of the acid gas plume,which was featured by using Peng-Robinson equation and modified Lucas equation to describe variations of the density and viscosity of acid gas in saline aquifers.The evolutional characteristics of acid gas plume were obtained through numerical simulations using COMSOL Multiphysics 3.5a.The results showed that under intrinsic characteristics of aquifers and operational conditions given,the variation of acid gas density was the major factor that influences the patterns and shapes of the plume.The leading edge position of acid gas plume was intensively dependent on the acid gas composition.Under the scheme of fixed mass flow rate injection,as the molar fraction of H2S increased,the position of leading edge advanced gradually towards the injection well.Moreover,the estimation of the storage efficiency of acid gas in saline aquifers was clarified and discussed.The proposed approach and the simulation results will provide insights into the determination of optimal operational strategies and rapid identification of the consequences of acid gas injection into deep confined saline aquifers.

  13. A randomized clinical trial on comparison of corticosteroid injection with or without splinting versus saline injection with or without splinting in patients with lateral epicondylitis

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    Mohammad Ali Tahririan

    2014-01-01

    Full Text Available Background: Lateral epicondylitis is a common problem affecting 1-3% of the population. There has been much debate about the best treatment modality for this condition. There is, however, no conclusive evidence in support of any of the proposed treatment modalities. In this trial, we have studied the effect of corticosteroid injection (with or without splinting with normal saline injection (with or without splinting. Materials and Methods: In this double-blind, randomized clinical trial, individuals were randomly assigned to either of four treatment groups and received either 40 mg depomedrol injection alone, 40 mg depomedrol injection with splinting, normal saline injection alone, or normal saline injection with splinting. They were evaluated using the visual analog scale (VAS at weeks 2, 4 and 24 and with the Oxford elbow scale (OES at 24 weeks. Results: A total of 79 patients were participated in the study. The corticosteroid injection groups had better pain relief as measured by VAS at 2 and 4 weeks compared with the two saline injection groups. Mean VAS difference at week 0 versus week 2 was 4.5 ± 0.9 and 2.8 ± 0.6 in corticosteroid injection groups and saline injection groups respectively (P < 0.01 but at 24 weeks, there was only moderate benefit reported for the group which received steroid injection and splinting (P < 0.01 compared to the saline injection groups. The saline injection groups reported better improvement in OES scores (20.1 ± 3.7 at the end of the trial compared corticosteroid injection groups (16.1 ± 2.9 (P < 0.05. Conclusion: Our results indicate that despite the clear pain reduction benefit associated with steroid injection in short term, this benefit in comparison with normal saline injection fades by the 24 th week of follow-up.

  14. Study of the Effect of Clay Particles on Low Salinity Water Injection in Sandstone Reservoirs

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    Sina Rezaei Gomari

    2017-03-01

    Full Text Available The need for optimal recovery of crude oil from sandstone and carbonate reservoirs around the world has never been greater for the petroleum industry. Water-flooding has been applied to the supplement primary depletion process or as a separate secondary recovery method. Low salinity water injection is a relatively new method that involves injecting low salinity brines at high pressure similar to conventional water-flooding techniques, in order to recover crude oil. The effectiveness of low salinity water injection in sandstone reservoirs depends on a number of parameters such as reservoir temperature, pressure, type of clay particle and salinity of injected brine. Clay particles present on reservoir rock surfaces adsorb polar components of oil and modify wettability of sandstone rocks to the oil-wet state, which is accountable for the reduced recovery rates by conventional water-flooding. The extent of wettability alteration caused by three low salinity brines on oil-wet sandstone samples containing varying clay content (15% or 30% and type of clay (kaolinite/montmorillonite were analyzed in the laboratory experiment. Contact angles of mica powder and clay mixture (kaolinite/montmorillonite modified with crude oil were measured before and after injection with three low salinity sodium chloride brines. The effect of temperature was also analyzed for each sample. The results of the experiment indicate that samples with kaolinite clay tend to produce higher contact angles than samples with montmorillonite clay when modified with crude oil. The highest degree or extent of wettability alteration from oil-wet to intermediate-wet state upon injection with low salinity brines was observed for samples injected with brine having salinity concentration of 2000 ppm. The increase in temperature tends to produce contact angles values lying in the higher end of the intermediate-wet range (75°–115° for samples treated at 50 °C, while their corresponding

  15. Intralesional saline injection for effective ultrasound-guided aspiration of benign viscous cystic thyroid nodules

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    Ko, Eun Sook; Shin, Jung Hee [Dept. of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of); Sung, Jin Yong [Dept. of Radiology, Thyroid Center, Daerim St. Mary' s Hospital, Seoul (Korea, Republic of)

    2014-04-15

    We aimed to evaluate the efficacy and safety of vigorous saline injection for viscous cystic thyroid nodules. Eighteen patients who underwent ultrasound-guided aspiration for viscous cystic thyroid nodules using a saline injection were included in our study. After failing to aspirate the cyst by the usual method, we vigorously injected saline into the cyst in multiple directions to break up and liquefy the viscous cystic contents to enable aspiration. The initial and the residual volume of the nodule were calculated, and the volume reduction rate and the time taken to perform the aspiration were recorded. The mean volume of the cystic nodules before aspiration was 11.0 mL (range, 1.2 to 26.0 mL), while the postaspiration volume was 4.2 mL (range, 0.2 to 14.5 mL). The mean aspirated volume was 63.7% of the initial volume. The mean procedure time was 12.4 minutes (range, 5 to 26 minutes). There were no significant complications related to the procedure. A vigorous saline injection followed by aspiration can be a useful method to aspirate viscous cystic thyroid nodules as a prestep for further intervention or simple management.

  16. Subcutaneous injection of normal saline prevents cutaneous complications of ethanol sclerotherapy for superficial vascular lesions: an experimental study.

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    Ihara, Aki; Kurita, Masakazu; Ozaki, Mine; Fujiki, Masahide; Kaji, Nobuyuki; Takushima, Akihiko; Harii, Kiyonori

    2011-08-01

    Percutaneous sclerotherapy is an effective therapeutic option for the treatment of venous malformations. Absolute ethanol is used as a sclerotic agent because of its effectiveness but is often avoided for treatment of superficial lesions because of the possible risk of cutaneous necrosis. A preclinical experimental study was performed to validate whether the cytotoxic effects of ethanol on surrounding healthy tissues could be diminished with prophylactic subcutaneous injection of normal saline above the vascular lesion immediately after intraluminal injection of ethanol by dilution. The effect of normal saline dilution on cytotoxicity of ethanol to the main cells of the skin (fibroblasts and keratinocytes) were assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide colorimetric assay. Effects of subcutaneous injection of normal saline immediately after intraluminal ethanol injection were assessed in a newly developed animal experimental model using the rabbit auricular vein. Cytotoxic effects of ethanol were decreased by saline dilution in vitro. Subcutaneous injection of normal saline after intraluminal injection of ethanol prevented the cutaneous ulceration observed in all cases without subcutaneous injection of normal saline in our animal model. Subcutaneous injection of normal saline appears effective for preventing cutaneous complications after ethanol sclerotherapy for superficial vascular lesions. © 2011 by the American Society for Dermatologic Surgery, Inc.

  17. Study of the effect of Illite and Kaolinite on low salinity water injection

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    Sina Rezaei-Gomari

    2015-07-01

    Full Text Available Low salinity water flooding as an Enhanced Oil Recovery (EOR Technique refers to the injection of brine with a lower salt content or ionic strength into an oil reservoir. Although the mechanisms have not yet been verified, the solution and surface chemistry as well as rock/fluid interactions have important roles that can be attributed to reservoir minerals being sensitive to small changes in solution properties. Among the proposed mechanisms, the clay content of rock and type of clay has been of significant interest in shedding light on the low salinity water flooding process. In this paper, two clay types (illite and kaolinite have been selected to investigate the individual contribution of each on the rock surface characterization andlow salinity water flooding performance. The results from contact angle measurement on the oil-wet calcite by low salinity water at room temperature show that the presence of low content of illite in the rock materials, in contrast to the kaolinite, reduces the contact angle significantly. This observation demonstrates that the low salinity water flooding performance depends strongly on the type of clay not on the amount of clay.

  18. Effects of Capillary Pressure on Multiphase Flow during CO2 Injection in Saline Aquifer

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    Pau J.S.

    2014-07-01

    Full Text Available This paper focused on supercritical CO2 injection into saline aquifer, in particular its capillarity’s effects on the plume migration, reservoir pressure alteration and CO2 flux density. The numerical method used to solve the incompressible two-phase flow equations is based on the mimetic method, which conserves the mass and fluxes simultaneously. The investigation showed that exclusion of capillarity can greatly underestimate the CO2 plume migration and resulted in distinctive reservoir pressure distribution. It is found that capillarity showed no significant effect on the flux intensity of CO2.

  19. Fibrous Myopathy as a Complication of Repeated Intramuscular Injections for Chronic Headache

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    R Burnham

    2006-01-01

    Full Text Available Two cases of fibrous myopathy associated with repeated, long-term intramuscular injections for treatment of chronic temporomandibular joint pain and chronic headache, respectively, are described. Both patients developed severe, function-limiting contractures in upper and lower extremity muscles used as injection sites. In one of the cases, the contractures were painful. Electrophysiological testing, magnetic resonance imaging and muscle biopsy results were all consistent with myopathy and replacement of skeletal muscle with noncontractile fibrous tissue. These cases are presented to increase awareness of fibrous myopathy and to promote surveillance for this serious potential complication of long-term intramuscular injections in chronic headache and other pain patients.

  20. The effects of differential injection sites of cold saline on transpulmonary thermodilution parameter values

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    Yang W

    2015-04-01

    Full Text Available Wanjie Yang,1 Qingguo Feng,1 Youzhong An,2 Xuefeng Zhao,1 Kai Wei,1 Chang Li,1 Wei Wang,1 Hongyun Teng1 1Department of Critical Care, The Fifth Central Hospital of Tianjin, Tianjin, People’s Republic of China; 2Department of Critical Care, The People’s Hospital, Peking University, Beijing, People’s Republic of China Aim: To investigate the effects of differential sites for cold saline injection on transpulmonary thermodilution parameter values.Methods: This was a prospective study. Twelve patients were recruited for the following examinations: control condition (injection site at proximal injection end of the Swan-Ganz catheter, proximal end condition (injection site at sheath of the Swan-Ganz catheter, and distal end condition (injection site at PA end of the Swan-Ganz catheter. Sixty measurements were performed for each condition. The cardiac index, global end diastolic volume index (GEDI, and extravascular lung water index for the three different injection sites were recorded from each patient. In addition, the mean transmission time (MTt, downslope time, and area under the curve obtained from PiCCO-VoLEF-Win software were compared among different groups.Results: There were no differences in cardiac index and extravascular lung water index values among the three conditions (P>0.05. There were no differences in GEDI between the proximal end condition and control condition (P>0.05, while the GEDI was significantly lower for the distal end condition (493.33±254.65 mL/m2 than for the control condition (645.53±234.46 mL/m2 (P<0.05 and proximal end condition (717.96±321.63 mL/m2 (P<0.01. There were no differences in downslope time and area under the curve among the three conditions (P>0.05. There were no differences in MTt between the proximal end condition and control condition (P>0.05, while the MTt was significantly lower for distal end condition (40.22±16.37 seconds than for the control condition (42.91±17.93 seconds (P<0.05 and

  1. Fear of repeated injections in children younger than 4 years receiving subcutaneous allergy immunotherapy.

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    de Vos, Gabriele; Shankar, Viswanathan; Nazari, Ramin; Kooragayalu, Shravan; Smith, Mitchell; Wiznia, Andrew; Rosenstreich, David

    2012-12-01

    Allergy immunotherapy during early childhood may have potential benefits for the prevention of asthma and allergy morbidity. However, subcutaneous immunotherapy has not yet been prospectively researched in children younger than 4 years, primarily because of safety concerns, including the fear and psychological distress young children may experience with repeated needle injections. To quantify fear in atopic children younger than 4 years with a history of wheezing who are receiving subcutaneous immunotherapy. Fear of injection was graded during a total of 788 immunotherapy injection visits in 18 children (age, 37 months; SD, 9 months) receiving subcutaneous allergy immunotherapy. The parent and the injection nurse assigned fear scores on a scale of 0 to 10 after each injection visit. At the time of analysis, children had a median of 49 injection visits (range, 12-88) during a median study period of 81.5 weeks (range, 15-165 weeks). Fifteen children (83%) lost their fear of injections during the study. A fear score of 0 was achieved after a mean of 8.4 visits (SD, 7.4). The more injection visits were missed, the more likely children were to retain fear of injections (hazard ratio, 0.13; 95% confidence interval, 0.02-1.02; P=.05). Age, adverse events, number of injections at each visit, and change of injection personnel were not associated with increased fear. Our analysis suggests that most children receiving weekly subcutaneous immunotherapy lose their fear of injections during the treatment course. Children with increased intervals between visits may be at higher risk of experiencing fear of injections. clinicaltrial.gov identifier NCT01028560. Copyright © 2012 American College of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.

  2. Modulation of jaw muscle spindle afferent activity following intramuscular injections with hypertonic saline.

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    Ro, J Y; Capra, N F

    2001-05-01

    Transient noxious chemical stimulation of small diameter muscle afferents modulates jaw movement-related responses of caudal brainstem neurons. While it is likely that the effect is mediated from the spindle afferents in the mesencephalic nucleus (Vmes) via the caudally projecting Probst's tract, the mechanisms of pain induced modulations of jaw muscle spindle afferents is not known. In the present study, we tested the hypothesis that jaw muscle nociceptors gain access to muscle spindle afferents in the same muscle via central mechanisms and alter their sensitivity. Thirty-five neurons recorded from the Vmes were characterized as muscle spindle afferents based on their responses to passive jaw movements, muscle palpation, and electrical stimulation of the masseter nerve. Each cell was tested by injecting a small volume (250 microl) of either 5% hypertonic and/or isotonic saline into the receptor-bearing muscle. Twenty-nine units were tested with 5% hypertonic saline, of which 79% (23/29) showed significant modulation of mean firing rates (MFRs) during one or more phases of ramp-and-hold movements. Among the muscle spindle primary-like units (n = 12), MFRs of 4 units were facilitated, five reduced, two showed mixed responses and one unchanged. In secondary-like units (n = 17), MFRs of 9 were facilitated, three reduced and five unchanged. Thirteen units were tested with isotonic saline, of which 77% showed no significant changes of MFRs. Further analysis revealed that the hypertonic saline not only affected the overall output of muscle spindle afferents, but also increased the variability of firing and altered the relationship between afferent signal and muscle length. These results demonstrated that activation of muscle nociceptors significantly affects proprioceptive properties of jaw muscle spindles via central neural mechanisms. The changes can have deleterious effects on oral motor function as well as kinesthetic sensibility.

  3. Microbial community response to the CO2 injection and storage in the saline aquifer, Ketzin, Germany

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    Morozova, Daria; Zettlitzer, Michael; Vieth, Andrea; Würdemann, Hilke

    2010-05-01

    The concept of CO2 capture and storage in the deep underground is currently receiving great attention as a consequence of the effects of global warming due to the accumulation of carbon dioxide gas in the atmosphere. The EU funded CO2SINK project is aimed as a pilot storage of CO2 in a saline aquifer located near Ketzin, Germany. One of the main aims of the project is to develop efficient monitoring procedures for assessing the processes that are triggered in the reservoir by CO2 injection. This study reveals analyses of the composition and activity of the microbial community of a saline CO2 storage aquifer and its response to CO2 injection. The availability of CO2 has an influence on the metabolism of both heterotrophic microorganisms, which are involved in carbon cycle, and lithoautotrophic microorganisms, which are able to use CO2 as the sole carbon source and electron acceptor. Injection of CO2 in the supercritical state (temperature above 31.1 °C, pressure above 72.9 atm) may induce metabolic shifts in the microbial communities. Furthermore, bacterial population and activity can be strongly influenced by changes in pH value, pressure, temperature, salinity and other abiotic factors, which will be all influenced by CO2 injection into the deep subsurface. Analyses of the composition of microbial communities and its changes should contribute to an evaluation of the effectiveness and reliability of the long-term CO2 storage technique. The interactions between microorganisms and the minerals of both the reservoir and the cap rock may cause major changes to the structure and chemical composition of the rock formations, which would influence the permeability within the reservoir. In addition, precipitation and corrosion may occur around the well affecting the casing and the casing cement. By using Fluorescence in situ Hybridisation (FISH) and molecular fingerprinting such as Polymerase-Chain-Reaction Single-Strand-Conformation Polymorphism (PCR-SSCP) and Denaturing

  4. Repeated injection of PEGylated solid lipid nanoparticles induces accelerated blood clearance in mice and beagles

    Directory of Open Access Journals (Sweden)

    Zhao Y

    2012-06-01

    Full Text Available Yongxue Zhao, Long Wang, Mina Yan, Yanling Ma, Guangxi Zang, Zhennan She, Yihui DengCollege of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People’s Republic of ChinaAbstract: Surface modification of nanocarriers with amphiphilic polymer polyethylene glycol (PEG, known as PEGylation, is regarded as a major breakthrough in the application of nanocarriers. However, PEGylated nanocarriers (including liposomes and polymeric nanoparticles induce what is referred to as the “accelerated blood clearance (ABC phenomenon” upon repeated injection and consequently they lose their sustained circulation characteristics. Despite this, the present authors are not aware of any reports of accelerated clearance due to repeated injection for PEGylated solid lipid nanoparticles (SLNs, another promising nanocarrier. This study investigated the pharmacokinetics of PEGylated SLNs upon repeated administration in mice; moreover, the impact of circulation time on the induction of the ABC phenomenon was studied in beagles for the first time. The ABC index, selected as the ratio of the area under the concentration-time curve from time 0 to the last measured concentration of a second injection to that of the first injection, was used to evaluate the extent of this phenomenon. Results showed that the PEGylated SLNs exhibited accelerated clearance from systemic circulation upon repeated injection, both in mice and in beagles, and the ratio for the different time intervals, which showed that the ABC index exhibited significant difference within 30 minutes following the second injection, was good enough to evaluate the magnitude of ABC. This ABC index indicated that the 10 mol% PEG SLNs with a suitable prolonged circulation time induced the most marked ABC phenomenon in this research. This study demonstrated that, like PEGylated nanocarriers such as liposomes and polymeric nanoparticles, PEGylated SLNs induced the ABC phenomenon upon repeated injection

  5. Aging-related Changes of Microglia and Astrocytes in Hypothalamus after Intraperitoneal Injection of Hypertonic Saline in Rats

    Institute of Scientific and Technical Information of China (English)

    WANG Xiaoli; XU Yun; WANG Fang; TANG Lihua; LIU Zhilong; LI Honglian; LIU Shenghong

    2006-01-01

    To examine the aging-related changes of microglia and astrocytes in hypothalamus of rats after intraperitoneal injection of hypertonic saline in rats, old- and young-aged rats were injected with hypertonic saline solution into peritoneal cavity. Lectin histochemical techniques using Ricinus communis agglutinin-1 (RCA-1) and immunocytochemical method employing antibody against glial fibrillary acidic protein (GFAP) were used to demonstrate microglia and astrocytes in the hypothalamus of the rats, and the positively-stained cells were analyzed by computer-assisted image analysis system. Our results showed that the numbers of microglia and astrocytes were significantly increased in the hypothalamus of old-aged rats. After intraperitoneal injection of hypertonic saline,the number of microglia was significantly decreased in the hypothalamus of both young- and oldaged groups. After introperitoneal injection of hypertonic saline, the number of GFAP positive cells was significantly increased in the hypothalamus of young rats, but the number of GFAP positive cells did not show significant change in the hypothalamus of old rats. It is concluded that in the hypothalamus of old-aged rats, the increase of microglia may be related with the aging or degeneration of neurons, and the increase of astrocytes may provide more nourishment required by the aged neurons. The microglia and astrocytes in the hypothalamus of the two group rats may be affected by hypertonic saline, and the response of these cells to the stimuli is characterized by some aging-related changes.

  6. Buprenorphine for pain relief in mice: repeated injections vs sustained-release depot formulation.

    Science.gov (United States)

    Jirkof, P; Tourvieille, A; Cinelli, P; Arras, M

    2015-07-01

    Sustained-release formulations of analgesic drugs are promising alternatives to repeated drug injections. Here, we compared a sustained-release formulation of buprenorphine (SB, 2.2 mg/kg) with a standard protocol of three injections of buprenorphine (Temgesic, 0.1 mg/kg/8 h) in mice. Buprenorphine serum concentration and analgesic action (thermal sensitivity) were determined in healthy mice. Additionally, the pain relief properties of both protocols were assessed after laparotomy using physiological and ethological measures of pain and recovery. Serum concentrations and thermal sensitivity tests indicated duration of action of at least 4 h (but less than 8 h) with the Temgesic protocol, and 24-48 h with SB. Behavioural and clinical parameters indicated at least partial pain relief after surgery for both protocols. Observed side-effects of buprenorphine independent of the protocol were increased activity, disturbed circadian rhythm and several abnormal behaviours. A tendency for decreased food and water intake as well as body weight reduction was also seen. Body weight decreased significantly in animals that received three injections of Temgesic, regardless of whether surgery was performed or not (P = 0.015; P = 0.023), hinting at a stress response towards this repeated intervention. In conclusion, an application interval of 8 h (Temgesic) appears too long and might lead to repeated periods with insufficient analgesia in animals undergoing lasting and/or substantial pain after surgery. In comparison to the standard protocol, SB provided a long-lasting, assured analgesia without possible stressful repeated injections in a standard surgical model, with only limited and acceptable behavioural side-effects.

  7. Repeated intraperitoneal injections of interleukin 1 beta induce glucose intolerance in normal rats

    DEFF Research Database (Denmark)

    Wogensen, L; Reimers, J; Mandrup-Poulsen, T

    1991-01-01

    . An ip glucose tolerance test (0.2 g D-glucose/100 g) was performed 2 h after injection of rIL-1 beta. A single injection of rIL-1 beta caused a mild depression in blood glucose and an improved glucose tolerance. Multiple injections of rIL-1 beta induced a diminished weight gain, a 24-28% reduction......Previous in vitro findings suggest the involvement of interleukin 1 (IL-1) in the pathogenesis of insulin-dependent diabetes mellitus. The aims of the present study were to investigate the effects of single or repeated ip injections of recombinant IL-1 beta on blood glucose and glucose tolerance...... in vivo. Normal Wistar Kyoto rats were injected ip with a single injection of 4 micrograms/kg of the mature form of recombinant IL-1 beta (amino acids 117-269) or once daily on 5 consecutive days. Control rats were given vehicle and were fed ad libitum or pair-fed together with the rIL-1 beta treated rats...

  8. Changes in the properties of a crusty solonetz with soda salinization after single and repeated amelioration with phosphogypsum

    Science.gov (United States)

    Voropaeva, Z. I.; Trotsenko, I. A.; Parfenov, A. I.

    2011-03-01

    Different effects of single and repeated application of various rates of phosphogypsum to a crusty meadow chernozemic high-sodium solonetz with soda salinization formed in the zone of insufficient moistening in the forest-steppe zone of Western Siberia (the Ishim-Irtysh interfluve area) with the mean annual precipitation of 325 mm are revealed. Repeated phosphogypsum application provided a higher saturation of the soil exchange complex with exchangeable calcium, deeper desalinization of the soil profile, and more intensive removal of the exchange products beyond the 1-m-thick layer as compared to a single phosphogypsum application. The soil reclamation results in the soil profile's differentiation into three zones with respect to the salt content: the desalinization, transit, and accumulation zones. The greater the ameliorant rate, the higher the soil desalinization upon a single application of phosphogypsum. Upon the repeated phosphogypsum application, the zones of desalinization and salt transit are thicker irrespectively of the ameliorant rate. Despite the additional salt application, the degree of salinization in the upper 2 m does not increase. Data of the long-term investigations show that a single gypsum application exerts a favorable and long-term ameliorative effect. In the solonetz repeatedly ameliorated with phosphogypsum at the rates of 8 and 16 t/ha, the amount of the reacted phosphogypsum considerably exceeds the applied calculated rate and is almost equal to that upon a single application of phosphogypsum at the double rate (32 t/ha). It has been shown that not only the repeatedly applied phosphogypsum but also the soil calcium participates in the exchange reactions. This makes it possible to apply smaller rates of the ameliorant or calculate its rate for the upper 10-cm-thick layer.

  9. Factors influencing adverse skin responses in rats receiving repeated subcutaneous injections and potential impact on neurobehavior

    Science.gov (United States)

    Levoe, S. Nikki; Flannery, Brenna M.; Brignolo, Laurie; Imai, Denise M.; Koehne, Amanda; Austin, Adam T.; Bruun, Donald A.; Tancredi, Daniel J.; Lein, Pamela J.

    2015-01-01

    Repeated subcutaneous (s.c.) injection is a common route of administration in chronic studies of neuroactive compounds. However, in a pilot study we noted a significant incidence of skin abnormalities in adult male Long-Evans rats receiving daily s.c. injections of peanut oil (1.0 ml/kg) in the subscapular region for 21 d. Histopathological analyses of the lesions were consistent with a foreign body reaction. Subsequent studies were conducted to determine factors that influenced the incidence or severity of skin abnormalities, and whether these adverse skin reactions influenced a specific neurobehavioral outcome. Rats injected daily for 21 d with food grade peanut oil had an earlier onset and greater incidence of skin abnormalities relative to rats receiving an equal volume (1.0 ml/kg/d) of reagent grade peanut oil or triglyceride of coconut oil. Skin abnormalities in animals injected daily with peanut oil were increased in animals housed on corncob versus paper bedding. Comparison of animals obtained from different barrier facilities exposed to the same injection paradigm (reagent grade peanut oil, 1.0 ml/kg/d s.c.) revealed significant differences in the severity of skin abnormalities. However, animals from different barrier facilities did not perform differently in a Pavlovian fear conditioning task. Collectively, these data suggest that environmental factors influence the incidence and severity of skin abnormalities following repeated s.c. injections, but that these adverse skin responses do not significantly influence performance in at least one test of learning and memory. PMID:25705100

  10. Tachyphylaxis associated with repeated epidural injections of lidocaine is not related to changes in distribution or the rate of elimination from the epidural space

    Energy Technology Data Exchange (ETDEWEB)

    Mogensen, T.; Simonsen, L.; Scott, N.B.; Henriksen, J.H.; Kehlet, H. (Univ. of Copenhagen (Denmark))

    1989-08-01

    The relationship between tachyphylaxis (measured as a decrease in the rate of regression of sensory levels of analgesia) during repeated epidural injections of lidocaine and both the distribution of lidocaine within the epidural space (as measured by spread of simultaneous injection of the tracer technetium-99m diethylenetriaminepentaacetate (99mTc-DTPA)) and elimination of lidocaine from the epidural space (as measured by serum concentrations of lidocaine) was investigated in 18 patients undergoing minor surgery during lumbar epidural analgesia. Twelve patients received four injections of 20 mL of 2% lidocaine at 2-hr intervals. Epidural distribution was assessed by injection of 99mTc-DTPA diluted in saline on the preoperative day and diluted in an equal volume of 2% lidocaine on the morning before surgery and again after the fourth injection of lidocaine 6 hr later. The distribution of 99mTc-DTPA in the epidural space was unchanged during the three measurements despite significant tachyphylaxis in both sensory analgesia and motor blockade (11 of 12 patients had sensory analgesia 2 hr after the first injection in contrast to only 3 of 12 patients during the third injection). In another six patients 20 mL of 2% lidocaine were injected three times at 2-hr intervals before surgery, with measurements of serum concentrations of lidocaine after the first and last injections. Despite tachyphylaxis (no patient had sensory analgesia 2 hr after the third injection), there was no difference in the rate of disappearance of lidocaine from the epidural space as assessed by plasma lidocaine concentration curves during the first and third injection (0.5 +/- 0.1 and 0.3 +/- 0.04 microgram.mL-1.min-1, respectively).

  11. Epicardial ablation: prevention of phrenic nerve damage by pericardial injection of saline and the use of a steerable sheath.

    Science.gov (United States)

    Neven, Kars; Fernandez-Armenta, Juan; Andreu, David; Berruezo, Antonio

    2014-03-01

    Because of the close proximity of the phrenic nerve to the pericardium, phrenic nerve damage caused by epicardial ablation can easily occur. We report two cases of epicardial VT ablation where pericardial injection of saline, combined with the use of a steerable sheath, successfully prevents the phrenic nerve from being damaged.

  12. Epicardial Ablation: Prevention of Phrenic Nerve Damage by Pericardial Injection of Saline and the Use of a Steerable Sheath

    Directory of Open Access Journals (Sweden)

    Kars Neven, MD

    2014-03-01

    Full Text Available Because of the close proximity of the phrenic nerve to the pericardium, phrenic nerve damage caused by epicardial ablation can easily occur. We report two cases of epicardial VT ablation where pericardial injection of saline, combined with the use of a steerable sheath, successfully prevents the phrenic nerve from being damaged.

  13. Expansion of radiofrequency ablation volume by saturated NaCl saline injection in the area of vaporization.

    Science.gov (United States)

    Shimizu, A; Ishizaka, H; Awata, S; Shiraishi, A; Hirasawa, S; Tatezawa, T; Kano, M; Shimodaira, K; Taketomi-Takahashi, A; Tsushima, Y; Endo, K

    2009-01-01

    Vaporization around the radiofrequency (RF) electrode after RF application (RFA) limits the RF ablation area. To determine whether saturated saline injected into the area of vaporization after initial RFA extends ablation area after further RFA. RFA was performed in 18 ex vivo porcine livers and four in vivo rabbit erector spinae muscles. An RF electrode was used to ablate an area with 40W of parallel current for 15 min. The ablation margin was determined using a thermocouple, and the radius of the ablated area was measured. After RF electrode removal, saturated saline was infused through a percutaneous ethanol injection needle into the site of the original RFA in 11 liver samples and two erector spinae muscles. Three minutes later, RFA was resumed for 15 min. The remaining seven control liver samples and two spinae muscles received RFA without saline injection. The radius of the final ablated area was then measured. In the ex vivo study, injection of saturated saline significantly decreased tissue impedance (87.7+/-9.4 to 51.1+/-9.7 Omega, P+/-3.0 to 25.0+/-3.6 mm, Pvaporization around the RF electrode, followed by additional RFA, caused concentric expansion of the final ablation area, facilitating more efficient tumor ablation.

  14. Enhanced Wettability Modification and CO2 Solubility Effect by Carbonated Low Salinity Water Injection in Carbonate Reservoirs

    Directory of Open Access Journals (Sweden)

    Ji Ho Lee

    2017-01-01

    Full Text Available Carbonated water injection (CWI induces oil swelling and viscosity reduction. Another advantage of this technique is that CO2 can be stored via solubility trapping. The CO2 solubility of brine is a key factor that determines the extent of these effects. The solubility is sensitive to pressure, temperature, and salinity. The salting-out phenomenon makes low saline brine a favorable condition for solubilizing CO2 into brine, thus enabling the brine to deliver more CO2 into reservoirs. In addition, low saline water injection (LSWI can modify wettability and enhance oil recovery in carbonate reservoirs. The high CO2 solubility potential and wettability modification effect motivate the deployment of hybrid carbonated low salinity water injection (CLSWI. Reliable evaluation should consider geochemical reactions, which determine CO2 solubility and wettability modification, in brine/oil/rock systems. In this study, CLSWI was modeled with geochemical reactions, and oil production and CO2 storage were evaluated. In core and pilot systems, CLSWI increased oil recovery by up to 9% and 15%, respectively, and CO2 storage until oil recovery by up to 24% and 45%, respectively, compared to CWI. The CLSWI also improved injectivity by up to 31% in a pilot system. This study demonstrates that CLSWI is a promising water-based hybrid EOR (enhanced oil recovery.

  15. Formation dry-out from CO2 injection into saline aquifers: Part 1, Effects of solids precipitation and their mitigation

    Energy Technology Data Exchange (ETDEWEB)

    Pruess, Karsten; Muller, Nadja

    2009-02-01

    Injection of CO{sub 2} into saline aquifers may cause formation dry-out and precipitation of salt near the injection well, which may reduce formation porosity, permeability, and injectivity. This paper uses numerical simulation to explore the role of different processes and parameters in the salt precipitation process and to examine injection strategies that could mitigate the effects. The main physical mechanisms affecting the dry-out and salt precipitation process include (1) displacement of brine away from the injection well by injected CO{sub 2}, (2) dissolution (evaporation) of brine into the flowing CO{sub 2} stream, (3) upflow of CO{sub 2} due to gravity effects (buoyancy), (4) backflow of brine toward the injection point due to capillary pressure gradients that oppose the pressure gradient in the CO{sub 2}-rich ('gas') phase, and (5) molecular diffusion of dissolved salt. The different mechanisms operate on a range of spatial scales. CO{sub 2} injection at constant rate into a homogeneous reservoir with uniform initial conditions is simulated in 1-D radial geometry, to resolve multiscale processes by taking advantage of the similarity property, i.e., the evolution of system conditions as a function of radial distance R and time t depends only on the similarity variable R{sup 2}/t. Simulations in 2-D vertical cross sections are used to examine the role of gravity effects. We find that counterflow of CO{sub 2} and brine can greatly increase aqueous phase salinity and can promote substantial salt precipitation even in formations with low dissolved solids. Salt precipitation can accentuate effects of gravity override. We find that injecting a slug of fresh water prior to commencement of CO{sub 2} injection can reduce salt precipitation and permeability loss near the injection well.

  16. Hydrogen-rich saline injection into the subarachnoid cavity within 2 weeks promotes recovery after acute spinal cord injury

    Directory of Open Access Journals (Sweden)

    Jian-long Wang

    2015-01-01

    Full Text Available Hydrogen can relieve tissue-damaging oxidative stress, inflammation and apoptosis. Injection of hydrogen-rich saline is an effective method for transporting molecular hydrogen. We hypothesized that hydrogen-rich saline would promote the repair of spinal cord injury induced by Allen′s method in rats. At 0.5, 1, 2, 4, 8, 12 and 24 hours after injury, then once daily for 2 weeks, 0.25 mL/kg hydrogen-rich saline was infused into the subarachnoid space through a catheter. Results at 24 hours, 48 hours, 1 week and 2 weeks after injury showed that hydrogen-rich saline markedly reduced cell death, inflammatory cell infiltration, serum malondialdehyde content, and caspase-3 immunoreactivity, elevated serum superoxide dismutase activity and calcitonin gene-related peptide immunoreactivity, and improved motor function in the hindlimb. The present study confirms that hydrogen-rich saline injected within 2 weeks of injury effectively contributes to the repair of spinal cord injury in the acute stage.

  17. Hydrogen-rich saline injection into the subarachnoid cavity within 2 weeks promotes recovery after acute spinal cord injur y

    Institute of Scientific and Technical Information of China (English)

    Jian-long Wang; Qing-shan Zhang; Kai-di Zhu; Jian-feng Sun; Ze-peng Zhang; Jian-wen Sun; Ke-xiang Zhang

    2015-01-01

    Hydrogen can relieve tissue-damaging oxidative stress, inlfammation and apoptosis. Injection of hydrogen-rich saline is an effective method for transporting molecular hydrogen. We hypothe-sized that hydrogen-rich saline would promote the repair of spinal cord injury induced by Allen’s method in rats. At 0.5, 1, 2, 4, 8, 12 and 24 hours after injury, then once daily for 2 weeks, 0.25 mL/kg hydrogen-rich saline was infused into the subarachnoid space through a catheter. Results at 24 hours, 48 hours, 1 week and 2 weeks after injury showed that hydrogen-rich saline marked-ly reduced cell death, inlfammatory cell inifltration, serum malondialdehyde content, and caspa se-3 immunoreactivity, elevated serum superoxide dismutase activity and calcitonin gene-related peptide immunoreactivity, and improved motor function in the hindlimb. The present study conifrms that hydrogen-rich saline injected within 2 weeks of injury effectively contributes to the repair of spinal cord injury in the acute stage.

  18. Ultrasound-Guided Injection Therapy of Achilles Tendinopathy With Platelet-Rich Plasma or Saline

    DEFF Research Database (Denmark)

    Krogh, Thøger P; Ellingsen, Torkell; Christensen, Robin

    2016-01-01

    BACKGROUND: Achilles tendinopathy (AT) is a common and difficult to treat musculoskeletal disorder. PURPOSE: To examine whether 1 injection of platelet-rich plasma (PRP) would improve outcomes more effectively than placebo (saline) after 3 months in patients with AT. STUDY DESIGN: Randomized......-Achilles (VISA-A) score at 3 months. Secondary outcomes were pain at rest, pain while walking, pain when tendon was squeezed, ultrasonographic changes in tendon thickness, and color Doppler activity. Patients were informed that they could drop out after 3 months if they were dissatisfied with the treatment......, -0.5 to 3.7; P = .137), pain while walking (MD, 0.8; 95% CI, -1.8 to 3.3; P = .544), pain when tendon was squeezed (MD, 0.3; 95% CI, -0.2 to 0.9; P = .208), color Doppler activity (MD, 0.3; 95% CI, -0.2 to 0.8; P = .260), and tendon thickness (MD, 0.8 mm; 95% CI, 0.1 to 1.6 mm; P = .030). After the 3...

  19. Analytical solution for pressure buildup and plume evolution during injection of CO2 into saline aquifers

    Science.gov (United States)

    Mathias, S. A.; Hardisty, P. E.; Trudell, M. R.; Zimmerman, R. W.

    2008-12-01

    If geo-sequestration of CO2 is to be employed as a key greenhouse gas reduction method in the global effort to mitigate climate change, simple yet robust methods must be available to help design and monitor injection into saline aquifers. There has been significant development of simple analytical and semi-analytical techniques to support screening analysis and performance assessment for potential carbon sequestration sites. These techniques have generally been used to estimate the size of CO2 plumes for the purpose of leakage rate estimation. A common assumption of previous has been that both the fluids and the geological formation are incompressible. Consequently, calculation of pressure distribution requires the specification of an arbitrary radius of influence. In the present work, we relax this restriction by incorporating fluid and formation compressibility into our governing equations. These equations are transformed into ordinary differential equations using a similarity transformation, and are then solved using the method of matched asymptotic expansions. By allowing for compressibility in the fluids and formation, the solutions improve on previous work by not requiring the specification of an arbitrary radius of influence. Our solution is also capable of accounting for non-Darcy inertial effects modeled by the Forchheimer equation. These analytical solutions are validated by comparison with finite difference solutions. Our analysis leads to a simple yet highly accurate algebraic equation for estimating the evolution of a CO2 plume, and the associated pressure buildup, as a function of time.

  20. Assessment of Well Safety from Pressure and Temperature-Induced Damage during CO2 Injection in Deep Saline Aquifers

    Science.gov (United States)

    Singh, A. K.; Delfs, J.; Goerke, U.; Kolditz, O.

    2013-12-01

    Carbon dioxide Capture and Storage (CCS) technology is known for disposing a specific amount of CO2 from industrial release of flue gases into a suitable storage where it stays for a defined period of time in a safe way. Types of storage sites for CO2 are depleted hydrocarbon reservoirs, unmineable coal seams and saline aquifers. In this poster, we address the problem of CO2 sequestration into deep saline aquifers. The main advantage of this kind of site for the CO2 sequestration is its widespread geographic distribution. However, saline aquifers are very poorly characterized and typically located at one kilometer depth below the earth's surface. To demonstrate that supercritical CO2 injection into deep saline aquifers is technically and environmentally safe, it is required to perform thermo-hydro-mechanical analysis of failure moods with numerical models. In the poster, we present simple process-catching benchmark for testing the scenario of compressed CO2 injection into a multi- layered saline aquifer.The pores of the deformable matrix are initially filled with saline water at hydrostatic pressure and geothermal temperature conditions. This benchmark investigates (i) how the mechanical and thermal stresses enhance the permeability for CO2 migration; and (ii) subsequent failures mode, i.e., tensile, and shear failures. The tensile failure occurs when pore fluid pressure exceeds the principle stress whereas the Mohr-Coulomb failure criterion defines the shear failure mode. The thermo-hydro-mechanical (THM) model is based on a ';multi-componential flow' module . The coupled system of balance equations is solvedin the monolithic way. The Galerkin finite element approach is used for spatial discretization, whereas temporal discretization is performed with a generalized single step scheme. This numerical module has been implemented in the open-source scientific software OpenGeoSys.

  1. Issues Related to Seismic Activity Induced by the Injection of CO2 in Deep Saline Aquifers

    Energy Technology Data Exchange (ETDEWEB)

    Sminchak, Joel [Battelle Memorial Institute, Columbus, OH (US); Gupta, Neeraj [Battelle Memorial Institute, Columbus, OH (US); Byrer, Charles [National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV (US); Bergman, Perry [National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV (US)

    2001-05-31

    Case studies, theory, regulation, and special considerations regarding the disposal of carbon dioxide (CO2) into deep saline aquifers were investigated to assess the potential for induced seismic activity. Formations capable of accepting large volumes of CO2 make deep well injection of CO2 an attractive option. While seismic implications must be considered for injection facilities, induced seismic activity may be prevented through proper siting, installation, operation, and monitoring. Instances of induced seismic activity have been documented at hazardous waste disposal wells, oil fields, and other sites. Induced seismic activity usually occurs along previously faulted rocks and may be investigated by analyzing the stress conditions at depth. Seismic events are unlikely to occur due to injection in porous rocks unless very high injection pressures cause hydraulic fracturing. Injection wells in the United States are regulated through the Underground Injection Control (UIC) program. UIC guidance requires an injection facility to perform extensive characterization, testing, and monitoring. Special considerations related to the properties of CO2 may have seismic ramifications to a deep well injection facility. Supercritical CO2 liquid is less dense than water and may cause density-driven stress conditions at depth or interact with formation water and rocks, causing a reduction in permeability and pressure buildup leading to seismic activity. Structural compatibility, historical seismic activity, cases of seismic activity triggered by deep well injection, and formation capacity were considered in evaluating the regional seismic suitability in the United States. Regions in the central, midwestern, and southeastern United States appear best suited for deep well injection. In Ohio, substantial deep well injection at a waste disposal facility has not caused seismic events in a seismically active area. Current

  2. Approaches to Avoid Immune Responses Induced by Repeated Subcutaneous Injections of Allogeneic Umbilical Cord Tissue-Derived Cells

    Science.gov (United States)

    Lutton, Bram V.; Cho, Patricia S.; Hirsh, Erica L.; Ferguson, Kelly K.; Teague, Alexander G. S.; Hanekamp, John S.; Chi, Nina; Goldman, Stephanie N.; Messina, Darin J.; Houser, Stuart; Yeap, Beow Y.; Popma, Sicco H.; Sachs, David H.; Huang, Christene A.

    2013-01-01

    Background Cellular treatments for repairing diseased tissues represent a promising clinical strategy. Umbilical cord tissue-derived cells (UTC) are a unique source of cells with a low immunogenic profile and potential for tissue repair. By using UTC from miniature swine, we previously demonstrated that despite their low immunogenic phenotype, UTC could induce an immune response under certain inflammatory conditions and after multiple subcutaneous (SC) injections. Given that repeat dosing of cells may be necessary to achieve a lasting therapeutic benefit, in this study, we examined approaches to avoid an immune response to multiple SC injections of UTC. Methods By using in vitro and in vivo measures of sensitization to SC cellular injections, we assessed the effects of varying the location of administration site, prolongation of timing between injections, and use of immunosuppressive treatments on repeated cellular injections in Massachusetts General Hospital major histocompatibility complex-defined miniature swine. Results Although under normal conditions, a single SC injection of major histocompatibility complex-mismatched UTC did not induce a detectable immune response, multiple SC injections of UTC demonstrated rapid humoral and cell-mediated immune responses. Avoidance of an immune response to repeat SC injection was achieved by concurrent immunosuppression with each dose of UTC. Conclusions UTC and other similar cell types believed to be nonimmunogenic have the potential to induce immune responses under certain conditions. These studies provide important considerations and guidelines for preclinical studies investigating allogeneic cellular therapies. PMID:21451445

  3. Safety of Repeated-Dose Intratympanic Injections with AM-101 in Acute Inner Ear Tinnitus.

    Science.gov (United States)

    Staecker, Hinrich; Morelock, Michael; Kramer, Timothy; Chrbolka, Pavel; Ahn, Joong Ho; Meyer, Thomas

    2017-09-01

    Objective To evaluate the safety and tolerability of repeated intratympanic administration of the gel-formulated NMDA receptor antagonist AM-101 in acute patients with inner ear tinnitus. Study Design Prospective, double-blind, randomized, placebo-controlled study. Setting Sixty-nine secondary and tertiary sites in North America, Europe, and Asia. Subjects and Methods In total, 343 subjects with persistent acute tinnitus after traumatic cochlear injury or otitis media were randomized to receive 3 intratympanic doses of either AM-101 0.87 mg/mL or placebo over 3 to 5 days. They were followed for 84 days. The primary safety end point was the incidence of a clinically meaningful hearing deterioration from baseline to study day 35. Further safety assessments included tympanic membrane closure rates, analysis of adverse events, hematology, blood chemistry, and vital signs. In addition, data were collected on applied anesthetics and injection techniques. Results The treatment was well tolerated, with no intervention-related serious adverse events. The incidence of clinically meaningful hearing deterioration was low, comparable between treatment groups ( P = .82 for the primary safety end point) and not different between treated and untreated ears in unilaterally treated subjects. The rate of treatment and procedure-related adverse events was similar among treatment groups. The tympanic membrane was closed in 92% of subjects within 1 week and in all subjects by study day 84. Blood values and vital signs were inconspicuous. Conclusion Repeated intratympanic injections of AM-101 over a 3- to 5-day period appear to be safe and well tolerated, demonstrating the ability to potentially use this delivery approach over longer time periods.

  4. Effects of repeated injection of kisspeptin-10 on the initiation of egg-laying in juvenile quail.

    Science.gov (United States)

    Ni, Yingdong; Huang, Yanbing; Xiao, Yunqi; Wu, Jing; Qian, Fuyu; Grossmann, Roland; Zhao, Ruqian

    2012-10-01

    The kisspeptin (Kp) signaling pathway plays an essential role in the onset of reproduction in mammals. To investigate the effects of Kp on the initiation of egg laying in birds, juvenile female quail were given daily intraperitoneal injections of 300μl saline (control, Con), or 10nmol (low dosage, L) or 100nmol (high dosage, H) kisspeptin-10 (Kp-10) dissolved in 300μl saline for 3 weeks. The ratio of egg laying of quail in the L and H groups was notably increased compared to that of the Con group (Pquail by regulating the activities of the hypothalamus-pituitary-gonadal axis.

  5. Effects of moxifloxacin exposure on the conjunctival flora and antibiotic resistance profile following repeated intravitreal injections

    Institute of Scientific and Technical Information of China (English)

    Mustafa; Atas; Burhan; Baskan; Ayse; zkse; Fatma; Mutlu; Sarιgüzel; Süleyman; Demircan; Emine; Pangal

    2014-01-01

    AIM:To evaluate the effects of moxifloxacin exposure on the conjunctival flora and antibiotic resistance profile following repeated intravitreal injections.METHODS:Seventy-two eyes of 36 patients [36 eyes in control group, 36 eyes in intravitreal injection(IVI) group]were enrolled in the study. All the eyes had at least one IVI and had diabetic macular edema(DME) or age-related macular degeneration(ARMD). Moxifloxacin was prescribed to all the patients four times a day for five days following injection. Conjunctival cultures were obtained from the lower fornix via standardized technique with every possible effort made to minimize contamination from the lids, lashes, or skin. Before the application of any ophthalmic medication, conjunctival cultures were obtained from both eyes using sterile cotton culture. An automated microbiology system was used to identify the growing bacteria and determine antibiotic sensitivity.RESULTS:The bacterial cultures were isolated from 72 eyes of 36 patients, sixteen of whom patients(44.4%)were male and twenty(55.6%) were female. Average age was 68.4 ±9.0(range 50-86). The average number of injections before taking cultures was 3.1+1.0. Forty-eight(66.7%) of 72 eyes had at least one significant organism.There was no bacterial growth in 8(20.5%) of IVI eyes and in 16(44.4%) of control eyes(P =0.03). Of the bacteria isolated from culture, 53.8% of coagulase negative staphylococci(CoNS) in IVI eyes and 47.2%CoNS in control eyes. This difference between IVI eyes and control eyes about bacteria isolated from culture was not statistically significant(P =0.2). Eleven of 25 bacteria(44.0%) isolated from IVI eyes and 11(57.9%) of 19 bacteria isolated from control eyes were resistant to oxacillin. The difference in frequency of moxifloxacine resistance between two groups was not statistically significant(12.0% in IVI eyes and 21.1% in control eyes)(P =0.44). There were no cases of resistance to vancomycin, teicoplanin and linezolid

  6. Formation dry-out and injectivity impairment during CO2 storage in saline aquifers

    NARCIS (Netherlands)

    Roels, S.M.

    2015-01-01

    This research concerns the geological storage of CO2 and in particular injectivity impairment problems related to salt precipitation. Drying and salt precipitation in geological formations can have serious consequences for upstream operations in terms of injectivity and productivity. This can negati

  7. Impact of background flow on dissolution trapping of carbon dioxide injected into saline aquifers

    CERN Document Server

    Rapaka, Saikiran

    2011-01-01

    While there has been a large interest in studying the role of dissolution-driven free convection in the context of geological sequestration, the contribution of forced convection has been largely ignored. This manuscript considers CO$_2$ sequestration in saline aquifers with natural background flow and uses theoretical arguments to compute the critical background velocity needed to establish the forced convective regime. The theoretical arguments are supported by two dimensional high-resolution numerical simulations which demonstrate the importance of forced convection in enhancing dissolution in aquifers characterised by low Rayleigh numbers.

  8. Toxicity assessment of repeated intravenous injections of arginine–glycine–aspartic acid peptide conjugated CdSeTe/ZnS quantum dots in mice

    Directory of Open Access Journals (Sweden)

    Wang YW

    2014-10-01

    Full Text Available You-Wei Wang, Kai Yang, Hong Tang, Dan Chen, Yun-Long Bai Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China Background: Nanotechnology-based near-infrared quantum dots (NIR QDs have many excellent optical properties, such as high fluorescence intensity, good fluorescence stability, and strong tissue-penetrating ability. Integrin αvß3 is highly and specifically expressed in tumor angiogenic vessel endothelial cells of almost all carcinomas. Recent studies have shown that NIR QDs linked to peptides containing the arginine–glycine–aspartic acid (RGD sequence (NIR QDs-RGD can specifically target integrin αvß3 expressed in endothelial cells of tumor angiogenic vessels in vivo, and they offer great potential for early cancer diagnosis, in vivo tumor imaging, and tumor individualized therapy. However, the toxicity profile of NIR QDs-RGD has not been reported. This study was conducted to investigate the toxicity of NIR QDs-RGD when intravenously administered to mice singly and repeatedly at the dose required for successful tumor imaging in vivo.Materials and methods: A NIR QDs-RGD probe was prepared by linking NIR QDs with the maximum emission wavelength of 800 nm (QD800 to the RGD peptide (QD800-RGD. QD800-RGD was intravenously injected to BALB/C mice once or twice (200 pmol equivalent of QD800 for each injection. phosphate-buffered saline solution was used as control. Fourteen days postinjection, toxicity tests were performed, including complete blood count (white blood cell, red blood cell, hemoglobin, platelets, lymphocytes, and neutrophils and serum biochemical analysis (total protein, albumin, albumin/globulin, aspartate aminotransferase, alanine aminotransferase, and blood urea nitrogen. The coefficients of liver, spleen, kidney, and lung weight to body weight were measured, as well as their oxidation and antioxidation indicators, including

  9. Integrated physicochemical model for the injection of waste geopressured fluids into a saline aquifer

    Energy Technology Data Exchange (ETDEWEB)

    Alexander, J.H. (Systems, Science and Software, La Jolla, CA); Garg, S.K.; Pritchett, J.W.; Weare, J.H.; Kharaka, Y.K.; Bebout, D.G.; Bachman, A.L. (eds.)

    1981-01-01

    A time-dependent model of the combined physicochemical processes which are expected to be important to the successful reinjection of waste geopressured fluids into a saline aquifer is described. Models are developed for a number of chemical processes (i.e., 1. brine-mineral reactions including solution and precipitation of minerals, 2. brine-clay interactions such as selective absorption of ion species) which may occur when a spent geopressured brine is reinjected into an aquifer containing a fluid of different chemical composition. The chemical models have been incorporated into a one-dimensional thermohydraulic simulator. The combined physicochemical transport model (i.e., simulator) is applied to investigate the reinjection characteristics of a typical Gulf Coast reinjection aquifer system.

  10. Detection of carbon dioxide leakage during injection in deep saline formations by pressure tomography

    Science.gov (United States)

    Hu, Linwei; Bayer, Peter; Brauchler, Ralf

    2016-07-01

    CO2 injected into storage formations may escape to the overlying permeable layers. Mixed-phase diffusivity, namely the ratio of hydraulic conductivity and specific storage of the phase mixture, declines with increasing CO2 saturation. Thus, it can be an indicator of CO2 leakage. In this study, we perform interference brine or CO2 injection tests in a synthetic model, including a storage reservoir, an above aquifer, and a caprock. Pressure transients derived from an observation well are utilized for a travel-time based inversion technique. Variations of diffusivity are resolved by inverting early travel time diagnostics, providing an insight of plume development. Results demonstrate that the evolution of CO2 leakage in the above aquifer can be inferred by interpreting and comparing the pressure observations, travel times, and diffusivity tomograms from different times. The extent of the plume in reservoir and upper aquifer are reconstructed by clustering the time-lapse data sets of the mixed-phase diffusivity, as the diffusivity cannot be exactly reproduced by the inversion. Furthermore, this approach can be used to address different leaky cases, especially for leakage occurring during the injection.

  11. Modeling of fate and transport of co-injection of H2S with CO2 in deep saline formations

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, W.; Xu, T.; Li, Y.

    2010-12-15

    The geological storage of CO{sub 2} in deep saline formations is increasing seen as a viable strategy to reduce the release of greenhouse gases into the atmosphere. However, costs of capture and compression of CO{sub 2} from industrial waste streams containing small quantities of sulfur and nitrogen compounds such as SO{sub 2}, H{sub 2}S and N{sub 2} are very expensive. Therefore, studies on the co-injection of CO{sub 2} containing other acid gases from industrial emissions are very important. In this paper, numerical simulations were performed to study the co-injection of H{sub 2}S with CO{sub 2} in sandstone and carbonate formations. Results indicate that the preferential dissolution of H{sub 2}S gas (compared with CO{sub 2} gas) into formation water results in the delayed breakthrough of H{sub 2}S gas. Co-injection of H{sub 2}S results in the precipitation of pyrite through interactions between the dissolved H{sub 2}S and Fe{sup 2+} from the dissolution of Fe-bearing minerals. Additional injection of H{sub 2}S reduces the capabilities for solubility and mineral trappings of CO{sub 2} compared to the CO{sub 2} only case. In comparison to the sandstone (siliciclastic) formation, the carbonate formation is less favorable to the mineral sequestration of CO{sub 2}. Different from CO{sub 2} mineral trapping, the presence of Fe-bearing siliciclastic and/or carbonate is more favorable to the H{sub 2}S mineral trapping.

  12. Effect of repeated subcutaneous injections of carbon dioxide (CO2) on inflammation linked to hypoxia in adipose tissue graft.

    Science.gov (United States)

    Nisi, G; Barberi, L; Ceccaccio, L; Cuomo, R; Sisti, A; Castagna, A; Zerini, I; Brandi, C; Grimaldi, L; D'Aniello, C

    2015-12-01

    The purposes of this study was to assess the effect of repeated subcutaneous injections of CO2 on adipose tissue graft survival in immunosuppressed female nude mice. The authors designed an experimental study using volume measures, histopathological analysis and nuclear magnetic resonance of fat graft. The effect of repeated subcutaneous injection of CO2 is not yet investigated Approximately 0.5 ml of human fat were transplanted in a group of female nude mice. The mice were treated with 3 injections of 80 µl each carbon dioxide (total 240 µl) for 7 weeks. Initially, in vivo measurements were conducted and subsequently a comprehensive histopathological analysis was performed. The presence of inflammation was graded absent to minimal in animals treated with CO2 while a minimal to moderate grade was assigned to the control group. CO2 injection enhances the inflammatory response of the implanted tissue and reduces the reabsorption rate. The treatment may improve the graft survival in a more prolonged time-frame.

  13. Time-Lapse Seismic Monitoring using a Sparse Seismic Array: Pre-Injection Assessment of Repeatability at the Aquistore CO2 Storage Site

    Science.gov (United States)

    Roach, L. A.; White, D.; Roberts, B.

    2013-12-01

    Aquistore is a deep saline geological storage project. An estimated 2000 tonnes/day of CO2 will be captured and injected at approximately 3200m - 3350m into a sandstone reservoir. CO2 injection is expected to create a measurable change in the seismic properties within the reservoir. Our goal is to utilize a sparse seismic array to improve cost effectiveness and time-lapse SNR by improved repeatability. A permanent surface seismic array has been deployed at the Aquistore CO2 storage site comprising 630 vertical-component geophones deployed at a depth of 20m over a 2.5 x 2.5 km grid. Receiver lines are spaced at intervals of 144m, with an in-line geophone spacing of 72m and with geophones along adjacent lines staggered by 32m in the in-line direction. To assess the repeatability of seismic data acquired using this sparse seismic array, two 3D seismic surveys were conducted prior to the start of CO2 injection. The baseline survey was acquired in March, 2012 with a subsequent monitor survey in April, 2013. Sources consisted of 1kg dynamite shots detonated at 15m depth over a 3 x 3 km grid, with 12 shot lines spaced at 288m and 144m in-line spacing. The permanent receiver array provided for 100% collocated receiver positions, while 90% of the shot points of the repeat survey were placed within 2m of the shots of the baseline survey. These elements of the survey design serve to reduce the non-repeatability that may be related to acquisition effects and seasonal variations. Before processing, the datasets were matched so that the number of common shots and receivers was 256 and 599 respectively which results in a nominal fold of 40. Our preliminary approach of 3D time-lapse processing was to process each vintage separately while applying identical flows with the same parameters (e.g. mutes and time gates) to the repeat dataset. The normalized root-mean-square (nRMS) of the difference of the two data sets was used as the metric for repeatability in assessing the similarity

  14. A Low Cost Metal-Free Vascular Access Mini-Port for Artifact Free Imaging and Repeated Injections in Mice.

    Directory of Open Access Journals (Sweden)

    Teresa Fiebig

    Full Text Available Small injection ports for mice are increasingly used for drug testing or when administering contrast agents. Commercially available mini-ports are expensive single-use items that cause imaging-artifacts. We developed and tested an artifact-free, low-cost, vascular access mini-port (VAMP for mice.Leakage testing of the VAMP was conducted with high speed bolus injections of different contrast agents. VAMP-induced artifacts were assessed using a micro-CT and a small animal MRI (9.4T scanner ex vivo. Repeated contrast administration was performed in vivo.With the VAMP there was no evidence of leakage with repeated punctures, high speed bolus contrast injections, and drawing of blood samples. In contrast to the tested commercially available ports, the VAMP did not cause artifacts with MRI or CT imaging.The VAMP is an alternative to commercially available mini-ports and has useful applications in animal research involving imaging procedures and contrast agent testing.

  15. Combination of repeated single-session percutaneous ethanol injection and transarterial chemoembolisation compared to repeated single-session percutaneous ethanol injection in patients with non-resectable hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Arne Dettmer; Susanne Krusche; Sonja Merkesdal; Michael Galanski; Michael P Manns; Joerg S Bleck; Timm D Kirchhoff; Michael Gebel; Lars Zender; Nisar P Malek; Bernhard Panning; Ajay Chavan; Herbert Rosenthal; Stefan Kubicka

    2006-01-01

    AIM: To evaluate the treatment effect of percutaneous ethanol injection (PEI) for patients with advanced,non-resectable HCC compared with combination of transarterial chemoembolisation (TACE) and repeated single-session PEI, repeated single-session PEI alone,repeated TACE alone, or best supportive care.METHODS: All patients who received PEI treatment during the study period were included and stratified to one of the following treatment modalities according to physical status and tumor extent: combination of TACE and repeated single-session PEI, repeated single-session PEI alone, repeated TACE alone, or best supportive care. Prognostic value of clinical parameters including Okuda-classification, presence of portal vein thrombosis,presence of ascites, number of tumors, maximum tumor diameter, and serum cholinesterase (CHE), as well as Child-Pugh stage, α-fetoprotein (AFP), fever, incidence of complications were assessed and compared between the groups. Survival was determined using Kaplan-Meier and multivariate regression analyses.RESULTS: The 1- and 3-year survival of all patients was 73% and 47%. In the subgroup analyses, the combination of TACE and PEI (1) was associated with a longer survival (1-, 3-, 5-year survival: 90%, 52%,and 43%) compared to PEI treatment alone (2) (1-, 3-,5-year survival:65%, 50%, and 37%). Secondary PEI after initial stratification to TACE (3) yielded comparable results (1-, 3-, 5-year survival: 91%, 40%, and 30%)while PEI after stratification to best supportive care (4)was associated with decreased survival (1-, 3-, 5-year survival: 50%, 23%, 12%). Apart from the chosen treatment modalities, predictors for better survival were tumor number (n<5), tumor size (<5cm), no ascites before PEI, and stable serum cholinesterase after PEI (P<0.05). The mortality within 2 wk after PEI was 2.8%(n=3). There were 24 (8.9%) major complications after PEI including segmental liver infarction, focal liver necrosis, and liver abscess. All

  16. Pharmacokinetics of metadoxine for injection after repeated doses in healthy volunteers

    Institute of Scientific and Technical Information of China (English)

    L(U) Yuan; KANG Zi-sheng; LIU Yan; LI Tian-yun; XIAO Yong-hong

    2007-01-01

    @@ Alcohol-induced liver disease is one of the main epidemic problems nowadays. Metadoxine is a pyridoxine-pyrrolidone carboxylate with significant scavenging property. Metadoxine is able to accelerate the elimination of alcohol from the blood and tissues, help restore the functional structure of the liver and relieve neuro-psychological disorders associated with alcohol intoxication.1-3 The purpose of the study was to assay the pharmacokinetics of domestic metadoxine after repeated doses.

  17. Modeling techniques for cross-hole seismic monitoring of CO2 injection in a deep saline aquifer

    Science.gov (United States)

    Da, Federico, ,, Col; Gei, Davide

    2017-04-01

    In this work, we present a modelling technique for a synthetic, yet realistic, 2D cross-hole seismic monitoring experiment for CO2 injection in a deep saline aquifer. We implement a synthetic (2D) geological formation consisting of a sandstone aquifer, with shaly mudstone intrusions, embedded in very low permeability shales. The aquifer has its top at about 800 m b.s.l., is approximately 200 m thick and it extends about 800 m in the horizontal direction.The formation is very heterogenous with respect to all petrophysical and hydrological properties; furthermore, we consider the grains to be a mixture of quartz and clay. Injection of the CO2 and the propagation of the plume is modelled using STOMP commercial software. The algorithm solves the mass balance equation for wetting and non-wetting phase fluids, as well as for the dissolved salt. It considers advection via Darcy's equation extended to two phase flow and molecular diffusion. Furthermore, dissolution of the CO2 in the brine is considered. We assume the aquifer to be initially in hydrostatic equilibrium and we inject pure CO2 for 2 years. We then compute phase p-wave velocities and quality factor by means of White's mesoscopic theory, which assumes that the partially saturated pore consists of two concentrical spheres; the inner saturated with gas, the outer saturated with brine. Using this p-wave velocity and quality factor map, we compute synthetic cross-hole seismograms by means of a visco-acoustic modelling code. We perform 80 shots along the left borehole, with a source spacing of 5 metres. We then pick the first arrivals (direct wave) on the seismograms and we perform a tomographic inversion using cat3d software. We invert for straight rays, updating the velocity model with a SIRT algorithm at each iteration. Due to the mainly horizontal orientation of the velocity anomalies, we select to invert only for rays having an angle lower than 30° with the horizontal direction. The algorithm converged well

  18. The effect of repeated intramuscular alfentanil injections on experimental pain and abuse liability indices in healthy males.

    Science.gov (United States)

    Tompkins, David Andrew; Smith, Michael T; Bigelow, George E; Moaddel, Ruin; Venkata, Swarajya Lakshmi Vatem; Strain, Eric C

    2014-01-01

    Opioid-induced hyperalgesia (OIH), increased sensitivity to noxious stimuli after repeated opioid exposures, has been demonstrated in preclinical studies. However, there is no accepted, prospective model of OIH after repeated opioid exposures currently available in humans. This study assessed a potential prospective OIH model. Double-blind intramuscular injections of a short-acting opioid (alfentanil 15 mcg/kg; N=8) were compared to active placebo (diphenhydramine 25 mg; N=3) on cold and pressure pain testing and standard abuse liability measures in eight 10-hour sessions (1 injection/session) over 4 to 5 weeks in healthy, pain-free males. Decreases from session baseline pain threshold (PThr) and tolerance (PTol) were calculated to represent hyperalgesia, and were assessed both within and across sessions. Mean decreases in cold PTol were seen in the alfentanil group at 180 minutes (-3.8 s, ±26.5) and 480 minutes (-1.63 s, ±31.5) after drug administration. There was a trend for differences between conditions on cold PThr hyperalgesia but not for pressure PThr. Alfentanil participants had greater mean ratings on Liking and High visual analog scales at peak effects (30 min), but these scores did not change across sessions. Repeated alfentanil exposures over 4 to 5 weeks resulted in within session decreases in cold pain tolerance from baseline but these differences were not substantially different from diphenhydramine controls. The results did not support the phenomenon of OIH in this model, although definitive conclusions regarding the existence of OIH in humans likely requires a larger sample size or an alternative model.

  19. Tachyphylaxis associated with repeated epidural injections of lidocaine is not related to changes in distribution or the rate of elimination from the epidural space

    DEFF Research Database (Denmark)

    Mogensen, T; Simonsen, L; Scott, N B

    1989-01-01

    technetium-99m diethylenetriaminepentaacetate [99mTc-DTPA]) and elimination of lidocaine from the epidural space (as measured by serum concentrations of lidocaine) was investigated in 18 patients undergoing minor surgery during lumbar epidural analgesia. Twelve patients received four injections of 20 mL of 2......% lidocaine at 2-hr intervals. Epidural distribution was assessed by injection of 99mTc-DTPA diluted in saline on the preoperative day and diluted in an equal volume of 2% lidocaine on the morning before surgery and again after the fourth injection of lidocaine 6 hr later. The distribution of 99m......L of 2% lidocaine were injected three times at 2-hr intervals before surgery, with measurements of serum concentrations of lidocaine after the first and last injections. Despite tachyphylaxis (no patient had sensory analgesia 2 hr after the third injection), there was no difference in the rate...

  20. Effects of salinity on the accumulation of hemocyte aggregates and bacteria in the gills of Callinectes sapidus, the Atlantic blue crab, injected with Vibrio campbellii.

    Science.gov (United States)

    Ikerd, Jennifer L; Burnett, Karen G; Burnett, Louis E

    2015-05-01

    In addition to respiration and ion regulation, crustacean gills accumulate and eliminate injected particles, along with hemocyte aggregates that form in response to those particles. Here we report that the dose of Vibrio campbellii previously shown to induce a decrease in respiration and hemolymph flow across the gill in the Atlantic blue crab, Callinectes sapidus, also triggered the formation of aggregates containing four or more hemocytes in the gills, compared with saline-injected controls. More bacteria were trapped and rendered non-culturable per unit weight by anterior respiratory gills than posterior gills specialized for ion regulation. Further, more bacteria accumulated in the anterior gills of animals held at 30 ppt than those at 10 ppt. Thus, the role of the gills in immune defense comes at an energetic cost to this and likely to other crustaceans; this cost is influenced by acclimation salinity and the position and specialized function of individual gills. Copyright © 2014 Elsevier Inc. All rights reserved.

  1. Mycobacterium abscessus post-injection abscesses from extrinsic contamination of multiple-dose bottles of normal saline in a rural clinic.

    Science.gov (United States)

    Yuan, Jun; Liu, Yufei; Yang, Zhicong; Cai, Yanshan; Deng, Zhiai; Qin, Pengzhe; Li, Tiegang; Dong, Zhiqiang; Yan, Ziqiang; Zhou, Duanhua; Luo, Huiming; Ma, Huilai; Pang, Xinglin; Fontaine, Robert E

    2009-09-01

    We investigated an outbreak of gluteal abscesses following intramuscular (IM) injections given at a clinic in rural China to identify the causative agent, source, and method of exposure. We defined a case as an abscess that appeared at the site of an injection given since June 1, 2006. We compared case rates by injection route, medication, and diluents. We reviewed injection practices, and cultured abscesses and environmental sites for mycobacteria. From October through December 2006, 5.8% (n=35) of 604 persons who had received injections at the clinic developed a case. All 35 cases occurred in 184 patients (attack rate=19.0%) who had received IM injections with various drugs that had been mixed with normal saline (NS); risk ratio=infinity; prubber septum of 100 ml multiple-dose bottles of NS in the clinic. Fourteen percent (n=527) of the 3887 registered residents of this village had been treated with IM drugs over a three-month period, often for minor illnesses. This outbreak of M. abscessus occurred from exposure to extrinsically contaminated NS through improper injection practices. Frequent treatment of minor illnesses with IM injections of antibiotics was likely an important contributing factor to the size of this outbreak.

  2. Tachyphylaxis associated with repeated epidural injections of lidocaine is not related to changes in distribution or the rate of elimination from the epidural space

    DEFF Research Database (Denmark)

    Mogensen, T; Simonsen, L; Scott, N B

    1989-01-01

    technetium-99m diethylenetriaminepentaacetate [99mTc-DTPA]) and elimination of lidocaine from the epidural space (as measured by serum concentrations of lidocaine) was investigated in 18 patients undergoing minor surgery during lumbar epidural analgesia. Twelve patients received four injections of 20 mL of 2......% lidocaine at 2-hr intervals. Epidural distribution was assessed by injection of 99mTc-DTPA diluted in saline on the preoperative day and diluted in an equal volume of 2% lidocaine on the morning before surgery and again after the fourth injection of lidocaine 6 hr later. The distribution of 99mTc-DTPA...

  3. Three-dimensional transesophageal echocardiography with agitated saline injection to differentiate between atrial septal defects and echo drop-out artifacts.

    Science.gov (United States)

    Alherbish, Aws; Shanks, Miriam; Choy, Jonathan

    2014-12-01

    The diagnosis of multiple atrial septal defects is less challenging with 3-D transesophageal echocardiography. However, the common occurrence of echo drop-out (acoustic shadow) artifacts with 3-D echocardiography can make the differentiation between a second defect and an artifact challenging. Agitated saline injection with direct visualization using 3-D echocardiography can help resolve this by allowing visualization of the bubbles crossing from true defects.

  4. Desensitization of B-adrenergic receptors following repeated injections of 2-substituted-4-phenylquinolines

    Energy Technology Data Exchange (ETDEWEB)

    Alhaider, A.A.

    1986-03-05

    In a previous work, they synthesized some new 2-substituted-4-phenylquinoline derivatives which demonstrated potent antidepressant activities as revealed by their antagonism to the uptake of /sup 3/(H)-norepinephrine and /sup 3/(H)-serotonin into brain synaptosomal preparation. Also, these compounds have demonstrated less anticholinergic, antihistamine and cardiovascular effects as compared to imipramine in animal models. In this present work, the chronic effects of some of these compounds on the sensitivity of the noradrenergic cyclic-AMP generating system on rat brain cortex has been conducted by the daily injection of 20 mg/kg i.p. for a period of three weeks. Imipramine and trazodone were utilized as standards, representing typical and atypical antidepressants, respectively. Acute treatment (single dose 20 mg/kg) and subchronic treatment (20 mg/kg for 10 days) produced no significant desensitization of the B-adrenoceptors. However, chronic treatment with the compounds significantly decreased isoprenaline-induced increase in c-AMP in the cortex which suggests desensitization of B-adrenoceptors. This effect coupled with the previous findings point to a potential rule of these compounds as suitable antidepressant candidates.

  5. AB204. Repeated intradetrusor botulinum toxin type A injections are still effective for patients with neurogenic detrusor overactivity secondary to spinal cord injury in China

    Science.gov (United States)

    Chen, Hui; Yang, Xinghua; Zeng, Jingwen; Huang, Maping; Liu, Qiuling; Huang, Jiebing; Huang, Tianhai; Xie, Keji; Jiang, Chonghe

    2016-01-01

    Objective To assess effective outcomes following repeated treatment with intradetrusor botulinum toxin type A in patients with neurogenic detrusor overactivity (NDO). Methods Patients with NDO secondary to spinal cord injury (SCI) were enrolled. Botulinum toxin type A 200 U detrusor injections by a rigid cystoscope were repeated. Primary outcomes were urodynamic variables including maximum detrusor pressure during first involuntary detrusor contraction (Pdetmax IDC) filling cystometry, detrusor compliance (DC). Secondary outcomes were improvement of the patient’s quality of life (QoL) measured by Incontinence-Specific Quality-of-Life Instrument (I-QoL), the validated short forms of Urogenital Distress Inventory (UDI-6) and the Incontinence Impact Questionnaire (IIQ-7). Related adverse events were recorded. Results From 2012 to 2014, 159 injections were performed in 52 patients (44 male, 8 female). The mean age was 36.67 years. The maximum number of repeated injections was five. BC increased from (4.03–7.45) to (6.96–10.86) mL/cmH2O, Pdetmax in bladder storage decreased from (42.80–79.52) to (26.40–43.33) cmH2O, respectively. The I-QoL, UDI-6 and IIQ-7 showed a consistent improvement after repeated injections. Conclusions Repeated intradetrusor botulinum toxin type A injections remain improve QoL in patients with NDO secondary to SCI.

  6. Genetic Diversity and Association Analysis for Salinity Tolerance,Heading Date and Plant Height of Barley Germplasm Using Simple Sequence Repeat Markers

    Institute of Scientific and Technical Information of China (English)

    Lilia Eleuch; Abderrazek Jilal; Stefania Grando; Salvatore Ceccarelli; Maria von Korff Schmising; Hisashi Tsujimoto; Amara Hajer; Abderrazek Daaloul; Michael Baum

    2008-01-01

    The objective of this study was to investigate the genetic diversity of barley accessions.Additionally,association trait analysis was conducted for grain yield under salinity,heading date and plant height.For this purpose,48 barley genotypes were analyzed with 22 microsatellite simple sequence repeat (SSR) markers.Four of the 22 markers (Bmac316,scssr03907,HVM67 and Bmag770) were able to differentiate all barley genotypes.Cluster and principal coordinate analysis allowed a clear grouping between countries from the same region.The genotypes used in this study have been evaluated for agronomic performance in different environments.Conducting association analysis for grain yield under salinity conditions using TASSEL software revealed a close association of the marker Bmag749 (2H,bin 13) in two different environments with common significant alleles (175,177),whereas the HVHOTR1 marker (2H,bin 3) was only significant in Sakhar_Egypt with alleles size being 158 and 161.Heading date also showed an association with scssr03907 through the common significant specific allele 111 and EBmacO415 markers in three different agro climatic locations,whereas HVCMA,scssr00103 and HVM67 were linked to heading date in the Egyptian environment only.The plant height association analysis revealed significant markers Bmag770 via the significant allele 152 and scssr09398.

  7. ISSR markers based on GA and AG repeats reveal genetic relationship among rice varieties tolerant to drought,flood,or salinity

    Institute of Scientific and Technical Information of China (English)

    Ch Surendhar REDDY; A.Prasad BABU; B.P.Mallikarjuna SWAMY; K.KALADHAR; N.SARLA

    2009-01-01

    Drought,flood,salinity,or a combination of these limits rice production.Several rice varieties are well known for their tolerance to specific abiotic stresses.We determined genetic relationship among 12 rice varieties including 9 tolerant to drought,flood,or salinity using inter-simple sequence repeat (ISSR) markers.Based on all markers,the nine tolerant varieties formed one cluster distinct from the cluster of three control varieties.The salt-tolerant varieties were closest to two flood-tolerant varieties,and together they were distinct from the drought-tolerant varieties.(GA)8 YG was the most informative primer,showing the highest polymorphic information content (PIC) and resolving power (Rp).The drought-,flood-,and salt-tolerant varieties grouped in three distinct clusters within the group of tolerant varieties,when (GA)8 YG was used.Sabita was the only exception.The two aus varieties,Nagina22 and FR13A,were separated and grouped with the drought-and flood-tolerant varieties,respectively,but they were together in dendrograms based on other primers.The results show that ISSR markers associated with (GA)8 YG delineated the three groups of stress-tolerant varieties from each other and can be used to identify genes/new alleles associated with the three abiotic stresses in rice germplasm.

  8. Repeated injections of energy in the first 600 ms of the giant flare of SGR 1806-20.

    Science.gov (United States)

    Terasawa, Toshio; Tanaka, Yasuyuki T; Takei, Yasuhiro; Kawai, Nobuyuki; Yoshida, Atsumasa; Nomoto, Ken'ichi; Yoshikawa, Ichiro; Saito, Yoshifumi; Kasaba, Yasumasa; Takashima, Takeshi; Mukai, Toshifumi; Noda, Hirotomo; Murakami, Toshio; Watanabe, Kyoko; Muraki, Yasushi; Yokoyama, Takaaki; Hoshino, Masahiro

    2005-04-28

    The massive flare of 27 December 2004 from the soft gamma-ray repeater SGR 1806-20, a possible magnetar, saturated almost all gamma-ray detectors, meaning that the profile of the pulse was poorly characterized. An accurate profile is essential to determine physically what was happening at the source. Here we report the unsaturated gamma-ray profile for the first 600 ms of the flare, with a time resolution of 5.48 ms. The peak of the profile (of the order of 10(7) photons cm(-2) s(-1)) was reached approximately 50 ms after the onset of the flare, and was then followed by a gradual decrease with superposed oscillatory modulations possibly representing repeated energy injections with approximately 60-ms intervals. The implied total energy is comparable to the stored magnetic energy in a magnetar (approximately 10(47) erg) based on the dipole magnetic field intensity (approximately 10(15) G), suggesting either that the energy release mechanism was extremely efficient or that the interior magnetic field is much stronger than the external dipole field.

  9. Post-injection feasibility study with the reflectivity method for the Ketzin pilot site, Germany (CO2 storage in a saline aquifer)

    Science.gov (United States)

    Ivanova, Alexandra; Kempka, Thomas; Huang, Fei; Diersch [Gil], Magdalena; Lüth, Stefan

    2016-04-01

    3D time-lapse seismic surveys (4D seismic) have proven to be a suitable technique for monitoring of injected CO2, because when CO2 replaces brine as a free gas it considerably affects elastic properties of porous media. Forward modeling of a 4D seismic response to the CO2-fluid substitution in a storage reservoir is an inevitable step in such studies. At the Ketzin pilot site (CO2 storage) 67 kilotons of CO2 were injected into a saline aquifer between 2008 and 2013. In order to track migration of CO2 at Ketzin, 3D time-lapse seismic data were acquired by means of a baseline pre-injection survey in 2005 and 3 monitor surveys: in 2009, 2012 and in 2015 (the 1st post-injection survey). Results of the 4D seismic forward modeling with the reflectivity method suggest that effects of the injected CO2 on the 4D seismic data at Ketzin are significant regarding both seismic amplitudes and time delays. These results prove the corresponding observations in the real 4D seismic data at the Ketzin pilot site. But reservoir heterogeneity and seismic resolution, as well as random and coherent seismic noise are negative factors to be considered in this interpretation. Results of the 4D seismic forward modeling with the reflectivity method support the conclusion that even small amounts of injected CO2 can be monitored in such post-injected saline aquifer as the CO2 storage reservoir at the Ketzin pilot site both qualitatively and quantitatively with considerable uncertainties (Lüth et al., 2015). Reference: Lueth, S., Ivanova, A., Kempka, T. (2015): Conformity assessment of monitoring and simulation of CO2 storage: A case study from the Ketzin pilot site. - International Journal of Greenhouse Gas Control, 42, p. 329-339.

  10. Safety Evaluation of EXPAREL (DepoFoam Bupivacaine Administered by Repeated Subcutaneous Injection in Rabbits and Dogs: Species Comparison

    Directory of Open Access Journals (Sweden)

    Brigitte M. Richard

    2011-01-01

    Full Text Available EXPAREL (bupivacaine extended-release liposome injection, DepoFoam bupivacaine, is in development for prolonged postsurgical analgesia. Repeat-dose toxicity studies were conducted in rabbits and dogs to compare the potential local and systemic toxicities of EXPAREL and bupivacaine HCl (Bsol, and the reversibility of any effects. Dogs tolerated much larger doses than rabbits. EXPAREL-related minimal-to-moderate granulomatous inflammation was noted at the injection sites. In recovery animals, the granulomatous inflammation was observed less frequently and was characterized by an increased number of multinucleated giant cells. These effects were considered a normal response to liposomes and nonadverse. Rabbits are more sensitive than dogs. In rabbits, convulsions were noted with EXPAREL and more frequently with Bsol; a NOAEL was not identified. In dogs, EXPAREL was well tolerated (NOAEL > 30 mg/kg/dose. The cumulative exposure of EXPAREL in these studies is well in excess of the proposed maximum single-dose exposure that is intended in humans.

  11. Risk of sensitization in healthy adults following repeated administration of rdESAT-6 skin test reagent by the Mantoux injection technique

    DEFF Research Database (Denmark)

    Lillebaek, Troels; Bergstedt, Winnie; Tingskov, Pernille N;

    2009-01-01

    1 open clinical trial was to assess the sensitization risk and safety of repeated administration of rdESAT-6 reagent in 31 healthy adult volunteers. Three groups of volunteers received two fixed doses of 0.1 microg rdESAT-6 28, 56 or 112 days apart, respectively. After the second injection......Limited specificity of the tuberculin skin test incited the development of the intradermal Mycobacterium tuberculosis-specific rdESAT-6 skin test. Animal studies have shown, however, that there is a possible risk of sensitization when repeated injections of rdESAT-6 are given. The aim of this phase...

  12. Effects of Depot Medroxyprogesterone Acetate Injection Timing on Medical Abortion Efficacy and Repeat Pregnancy: A Randomized Controlled Trial.

    Science.gov (United States)

    Raymond, Elizabeth G; Weaver, Mark A; Louie, Karmen S; Tan, Yi-Ling; Bousiéguez, Manuel; Aranguré-Peraza, Ana Gabriela; Lugo-Hernández, Elba M; Sanhueza, Patricio; Goldberg, Alisa B; Culwell, Kelly R; Kaplan, Clair; Memmel, Lisa; Sonalkar, Sarita; Jamshidi, Roxanne; Winikoff, Beverly

    2016-10-01

    To evaluate the effects of timing of depot medroxyprogesterone acetate injection on medical abortion outcome and risk of repeat pregnancy within the subsequent 6 months. In a multinational randomized trial, we assigned women undergoing medical abortion who wanted depot medroxyprogesterone acetate to administration either with mifepristone (Quickstart group) or after the abortion (Afterstart group). We ascertained abortion outcome, pregnancies, and contraception use over 7 months. From August 2013 to March 2015, we enrolled 461 participants with pregnancy durations of 75 days or less. Of participants included in the abortion outcome analyses, 14 of 220 (6.4%) and 12 of 226 (5.3%) in the Quickstart and Afterstart groups, respectively, had surgery to complete the abortion; the upper 90% confidence limit on this difference was 4.9%, within our prestipulated 5% noninferiority margin. Ongoing pregnancy after initial abortion treatment was significantly more common in the Quickstart group (8/220 [3.6%]) than in the Afterstart group (2/226 [0.9%]); the difference was 2.7% (90% confidence interval 0.4-5.6%). By 6 months, 5 of 213 (2.3%) and 7 of 217 (3.2%) in the Quickstart and Afterstart groups, respectively, became pregnant (exact log-rank test, P=.64). Use of highly effective contraceptives was significantly more common in the Quickstart group at 31 days (P<.001), but no difference was apparent at 6 months. The Quickstart group was significantly more satisfied with group assignment. Depot medroxyprogesterone acetate administration with mifepristone did not appreciably increase the risk of surgery after medical abortion but did increase the risk of ongoing pregnancy. It enhanced patient satisfaction, but we found no evidence that it decreased 6-month risk of repeat pregnancy. ClinicalTrials.gov, https://clinicaltrials.gov, NCT01902485.

  13. Semi-analytical models of CO2 Injection into Deep Saline Aquifers: evaluation of the area of review and leakage through abandoned wells

    Science.gov (United States)

    Kraemer, S.; Digiulio, D.; Levine, A.

    2008-12-01

    This presentation will provide a conceptual preview of an Area of Review (AoR) tool being developed by EPA's Office of Research and Development that applies analytic and semi-analytical mathematical solutions to elucidate potential risks associated with geologic sequestration of carbon dioxide into deep saline subsurface formations. These solutions can be applied to commercial scale injections of supercritical CO2 and enable the zone of influence and potential endangerment to be mapped, thereby helping to delineate the AoR. We anticipate implementing the semi-analytical solutions into an open source computer modeling framework. The major risks to be evaluated by the AoR tool include: induced subsurface pressures that may force native saline waters into an underground source of drinking water (USDW), and the potential transport of CO2 away from the injection center and out of the receiving zone. Both of these phenomena are influenced by leakage and compromises of the sealing layers, such as presented by abandoned wells or other subsurface penetrations. The semi-analytical solutions will be tested against numerical solutions (TOUGH2/ECO2N) and field data associated with the Kimberlina test injection site near Bakersfield, CA. The AoR tool will be used to simulate a hypothetical commercial scale injection and to evaluate if existing or potential USDW aquifers may be adversely impacted by short-term or long-term geologic sequestration activities. The AoR tool will be useful for permit applicants and regulators evaluating potential exposure and risks associated with geoequestration under the Underground Injection Control (UIC) program. This project will benefit from partnerships with Lawrence Berkeley National Laboratory and Princeton University.

  14. A mouse model of behavioral depression induced by repeated corticosterone injections%糖皮质激素注射建立小鼠行为抑郁症模型

    Institute of Scientific and Technical Information of China (English)

    彭军波; 季丽莉; 金雪花; 王振宇

    2012-01-01

    目的 研究糖皮质激素注射小鼠抑郁症样情感行为变化.方法 C57/B6雄性小鼠18只随机分为3组,模型组以20 mkg剂量每日1次注射皮质酮,持续21 d,另有生理盐水对照组每日注射等剂量生理盐水21 d,空白对照组不做任何处置,观察小鼠体重变化,用敞箱实验及糖水消耗试验测定动物行为.结果 抑郁模型组小鼠代表焦虑行为的敞箱试验得分明显降低、反应快感行为的奖赏糖水消耗百分比明显降低.结论 糖皮质激素持续注射法可用于制作行为小鼠抑郁模型,以及探究抑郁症行为变化发病机制以及寻找更适合治疗抑郁症的药物.%Objective To explore depression-like Emotional behavioral induced by repeated corticosterone injection. Methods C57/B6 male mice were divided into 3 groups. The model group received repeated injections of vehicle and 20 mg/kg of corticosterone for 21 days, while the saline control group injected daily dose of saline solution for 21 days, blank control group without any treatment. Thenwe bserved the body weight change of mice, used open-field test and sugar consumption test to determine the behaviors of these animals. Results Compare with the control group, the mice showed reduced squares crossing in the open-field test which reflect anxiety behavior, and significantly reduced preference in sucrose preference test which was a reaction behavior of the reward. The mice model of depression had been established successfully. Conclusion Clucocorticosteroid continuous injection method can successfully establish a reliable mouse behavioral depression model, and can be used to further explore the pathogenesis behavioral variation of depression as well as looking for drugs in the treatment of depression

  15. Effect of environmental salinity and dopamine injections on key digestive enzymes in hepatopancreas of the euryhaline crab Cyrtograpsus angulatus (Decapoda: Brachyura: Varunidae

    Directory of Open Access Journals (Sweden)

    María Soledad Michiels

    2013-03-01

    Full Text Available We studied the occurrence and characteristics of lipase activity and the response of lipase and proteolytic activity to salinity and dopamine injections in hepatopancreas of the euryhaline crab (Cyrtograpsus angulatus. Lipase activity was maximal at pH 8.5; it exhibited Michaelis-Menten kinetics (apparent Km=0.019 mM, was higher at 37°C and appeared to be cold tolerant, being also high at 4°C. In 10 psu (hyper-regulation conditions, lipase and proteolytic activity were about 3 and 5 times higher, respectively, than in 35 psu (osmoconformation. In 40 psu (hypo-regulation, lipase activity was about three times higher than in 35 psu, while proteolytic activity was similar. Lipase activity was inhibited in vivo by 10–4 M dopamine in 35 psu but not in 10 or 40 psu. Proteolytic activity was not affected by 10–4 M dopamine. The differential responses of lipase and proteolytic activity to salinity and dopamine suggest the occurrence of distinct digestive adjustments and mechanisms of regulation upon osmoregulatory conditions. This study contributes to a better understanding of the complexity of the biochemical adaptations to salinity in euryhaline crabs. The fact that higher digestive enzyme activities could be associated with a differential digestive capacity potentially leading to enhanced availability of energy substrates is discussed.

  16. [Clinical investigation of detecting the bronchi responsible for pulmonary air leakage by injecting methylene blue saline in 27 cases with intractable pneumothorax and bronchial fistula].

    Science.gov (United States)

    Jin, Pule; Ge, Hui; Peng, Luanshun; Wang, Guojun; Hu, Wenxia; Song, Shan

    2014-11-01

    To establish a new method for detecting the bronchus responsible for pulmonary air leakage by injecting methylene blue saline and to evaluate its efficacy and safety in cases with intractable pneumothorax and bronchial fistula. From January 2006 to October 2013, a total of 19 cases of intractable spontaneous pneumothorax and 8 cases of bronchial fistula were recruited in the study at the Fourth Hospital affiliated to Hebei Medical University. Of all the cases, 15 were diagnosed as having tension pneumothorax and 12 as having communicating pneumothorax. All the cases failed to respond to continuous pleural suction for more than 5 days and consented to the proposed treatment. Before procedure, chest suction was established to allow sustained airflow through the drainage tube while the patients breathed normally. Under direct vision through fiberoptic bronchoscope, injection catheter was inserted into the bronchoscopy channel, and methylene blue saline was slowly injected into the potentially leaking segmental or sub-segmental bronchi. When a steady decline or disappearance in the amount of methylene blue saline in the airways was observed, or methylthionine-tainted saline was detected within the chest drainage tube, the bronchus responsible for air leakage was indicated. Before blocking the target bronchus, the negative pressure level of pleural suction should be reduced or stopped, and then porcine fibrin glue or a-cyanoacrylate was used for sealing the bronchi associated with air leakage. When the air was absent from the drainage tube, and lung recruitment was indicated in the chest X-ray for 5 days, and bronchial blockade of air leakage was proved successful. The bronchi responsible for air leakage were successfully located in all 27 cases, among them segmental bronchi were located in 16, subsegmental bronchi in 10, and small subsegmental bronchus in only one. Multiple adjacent segmental involvement occurred in 3, and multiple adjacent subsegmental involvement in

  17. Chitosan-Hyaluronate Hybrid Gel Intraarticular Injection Delays Osteoarthritis Progression and Reduces Pain in a Rat Meniscectomy Model as Compared to Saline and Hyaluronate Treatment

    Directory of Open Access Journals (Sweden)

    Shachar Patchornik

    2012-01-01

    Full Text Available Chitosan-Hyaluronate hybrid gel (CHHG is a self-forming thermo-responsive hydrogel. The current study was undertaken in order to assess the effect of CHHG on rat's surgically induced osteoarthritis. Methods. Thirteen rats were included in the study. In all rats weight-bearing was assessed using a Linton Incapacitance tester. All rats underwent bilateral medial partial meniscectomy. Four rats received a saline injection in the control knee and a 200-microliter injection of CHHG in the experimental knee. Five rats received a high-molecular weight hyaluronate injection to the control knee and a 200-microliter injection of CHHG in the experimental knee. Four rats underwent the same surgical procedure, allowed to recuperate for seven days and then CHHG and hyaluronate were injected. The animals were followed for 6 weeks. Two weeks after injection of a therapeutic substance the amount of weight-bearing on each knee was evaluated using a Linton Incapacitance meter. Results. Two weeks after induction of osteoarthritis there is less pain in the CHHG-treated knee than in the control-treated knee, as determined using a Lintron Incapacitance meter. After six-weeks the histological appearance of the CHHG-treated knee was superior to that of the controls. This is indicated by thicker cartilage remaining on the medial femoral condyle as well as less cyst formation in the CHHG-treated knee. Discussion. CHHG appears to delay progression of osteoarthritis and lessen pain in a rat surgically-induced knee osteoarthritis model. These results support other published results, indicating that there is an ameliorative effect of chitosan on human and rabbit osteoarthritis.

  18. Long-term facial improvement after repeated BoNT-A injections and mirror biofeedback exercises for chronic facial synkinesis: a case-series study.

    Science.gov (United States)

    Mandrini, Silvia; Comelli, Mario; Dall'angelo, Anna; Togni, Rossella; Cecini, Miriam; Pavese, Chiara; Dalla Toffola, Elena

    2016-12-01

    Only few studies have considered the effects of the combined treatment with onabotulinumtoxinA (BoNT-A) injections and biofeedback (BFB) rehabilitation in the recovery of postparetic facial synkinesis (PPFS). To explore the presence of a persistent improvement in facial function out of the pharmacological effect of BoNT-A in subjects with established PPFS, after repeated sessions of BoNT-A injections combined with an educational facial training program using mirror biofeedback (BFB) exercises. Secondary objective was to investigate the trend of the presumed persistent improvement. Case-series study. Outpatient Clinic of Physical Medicine and Rehabilitation Unit. Twenty-seven patients (22 females; mean age 45±16 years) affected by an established peripheral facial palsy, treated with a minimum of three BoNT-A injections in association with mirror BFB rehabilitation. The interval between consecutive BoNT-A injections was at least five months. At baseline and before every BoNT-A injection+mirror BFB session (when the effect of the previous BoNT-A injection had vanished), patients were assessed with the Italian version of Sunnybrook Facial Grading System (SB). The statistical analysis considered SB composite and partial scores before each treatment session compared to the baseline scores. A significant improvement of the SB composite and partial scores was observed until the fourth session. Considering the "Symmetry of Voluntary Movement" partial score, the main improvement was observed in the muscles of the lower part of the face. In a chronic stage of postparetic facial synkinesis, patients may benefit from a combined therapy with repeated BoNT-A injections and an educational facial training program with mirror BFB exercises, gaining an improvement of the facial function up to the fourth session. This improvement reflects the acquired ability to use facial muscle correctly. It doesn't involve the injected muscles but those trained with mirror biofeedback exercises

  19. Electrokinetic sample injection for high-sensitivity CZE (part 2): improving the quantitative repeatability and application of electrokinetic supercharging-CZE to the detection of atmospheric electrolytes.

    Science.gov (United States)

    Xu, Zhongqi; Koshimidzu, Eiji; Hirokawa, Takeshi

    2009-10-01

    Electrokinetic supercharging (EKS) is defined as a technique that combines electrokinetic sample injection with transient ITP. Quantitative repeatability of EKS-CZE and the other CE methods using electrokinetic sample injection process is usually inferior in comparison with the CE methods using hydrodynamic or hydrostatic injection. This is due to some effects, such as the temperature change and the convection of the sample solution in the reservoir, as well as the change of the distance between an electrode and a capillary end (D(ec)). In particular, we have found that the D(ec) change might most seriously affect the repeatability, especially when the electrode is a thin Pt wire that could be unintentionally bent during sampling. By using a Teflon spacer to fix D(ec) to 1.1 mm, the RSD of peak area (n=5) was decreased from 20 to 3.4% in EKS-CZE for several metal cations. This D(ec) dependence of the sample amount injected was supported by computer simulation using CFD-ACE+ software. The improved repeatability (down to 5.1% at n=5, averaged RSD for Co(2+), Li(+), Ni(2+), Zn(2+) and Pb(2+)) was also experimentally attained by increasing the D(ec) to ca. 20 mm, which was also effective to obtain high sensitivity. Since the temperature and the convection effects on the repeatability are comparatively small in a proper laboratory environment, these effects were estimated from the EKS-CZE experiments using conditions such as warming and agitating the sample solution during EKS process. Finally, EKS-CZE was applied to the detection of ions from atmospheric electrolytes in high-purity water exposed to ambient air for 2 h. The microgram per liter levels of anions (chloride, sulfate, nitrate, formate, acetate and lactate) and cations (ammonium, calcium, sodium and magnesium) could be detected using conventional UV detector.

  20. Single versus repeated tramadol injection in laparotomized albino rats: comparison of effects on hematology, serum biochemical parameters, and body weight gain

    Directory of Open Access Journals (Sweden)

    Rita Ijeoma Udegbunam

    2015-09-01

    Full Text Available This study was aimed to assess the effects of single and repeated tramadol administration on some hematological and serum biochemical parameters of laparotomized rats. Laparotomized rats (n=18 were randomly divided into three equal groups. Normal saline was administered to the rats of group 1 (control. Tramadol (dosed at 10 mg/kg bwt was administered singly to the rats of group 2. The same dose of tramadol was administered repeatedly every 12 h up to 72 h to the rats of group 3. On day 3 and 10 post-laparotomy (PSL, blood urea nitrogen, serum creatinine, total serum protein, hematocrit, hemoglobin concentration and red blood cell counts in the rats of group 2 were found to be significantly (P<0.05 higher than those obtained in group 1 and group 3. Mean weights of rats in group 1 and group 3 were significantly lower than those of the rats of group 2 PSL. This study showed that repeated tramadol administration lead to slower weight gain as well as marked decrease in biochemical and erythrocytic variables in rats. Therefore, single administration of tramadol PSL may suffice for analgesia. [J Adv Vet Anim Res 2015; 2(3.000: 316-320

  1. Ganglion Cell Complex Evaluation in Exudative Age-Related Macular Degeneration after Repeated Intravitreal Injections of Ranibizumab

    Directory of Open Access Journals (Sweden)

    Andrea Perdicchi

    2015-01-01

    Full Text Available Purpose. To detect the effects of intravitreal ranibizumab injections on GCC in patients with wet AMD. Methods. 32 wet AMD eyes were selected and submitted at three ranibizumab injections. RTVue-OCT GCC and MM5 protocol were performed before treatment and twenty days after each injection. Results. At baseline mean GCC thickness was 93.9 ± 18.5 μm. Twenty days after each intravitreal injection it was, respectively, 85.8 ± 10.1, 86.5 ± 9.3, and 91.1 ± 11.5 μm, without statistical significance. A significant improvement in visual acuity (P = 0.031 and a reduction of mean foveal (P = 0.001 and macular thickness (P = 0.001 were observed. Conclusion. The clinical results confirm therapeutic efficacy of intravitreal injections of ranibizumab in wet AMD. A contemporary not statistically significant reduction of GCC thickness suggests that the loading phase of ranibizumab does not have any toxic effects on ganglion cell complex.

  2. Salinization and Saline Environments

    Science.gov (United States)

    Vengosh, A.

    2003-12-01

    One of the most conspicuous phenomena of water-quality degradation, particularly in arid and semi-arid zones, is salinization of water and soil resources. Salinization is a long-term phenomenon, and during the last century many aquifers and river basins have become unsuitable for human consumption owing to high levels of salinity. Future exploitation of thousands of wells in the Middle East and in many other water-scarce regions in the world depends, to a large extent, on the degree and rate of salinization. Moreover, every year a large fraction of agricultural land is salinized and becomes unusable.Salinization is a global environmental phenomenon that affects many different aspects of our life (Williams, 2001a, b): changing the chemical composition of natural water resources (lakes, rivers, and groundwater), degrading the quality of water supply to the domestic and agriculture sectors, contribution to loss of biodiversity, taxonomic replacement by halotolerant species ( Williams, 2001a, b), loss of fertile soil, collapse of agricultural and fishery industries, changing of local climatic conditions, and creating severe health problems (e.g., the Aral Basin). The damage due to salinity in the Colorado River Basin alone, for example, ranges between 500 and 750 million per year and could exceed 1 billion per year if the salinity in the Imperial Dam increases from 700 mg L-1 to 900 mg L-1 (Bureau of Reclamation, 2003, USA). In Australia, accelerating soil salinization has become a massive environmental and economic disaster. Western Australia is "losing an area equal to one football oval an hour" due to spreading salinity ( Murphy, 1999). The annual cost for dryland salinity in Australia is estimated as AU700 million for lost land and AU$130 million for lost production ( Williams et al., 2002). In short, the salinization process has become pervasive.Salinity in water is usually defined by the chloride content (mg L-1) or total dissolved solids content (TDS, mg L-1or g

  3. Numerical simulation methods applied to injection and storage of CO{sub 2} in saline aquifers; Metodos de simulacion numerica aplicados a la inyeccion y almacenamiento de CO{sub 2} en formaciones salinas

    Energy Technology Data Exchange (ETDEWEB)

    Arjona Garcia-Borreguero, J.; Rodriguez Pons-Esparver, R.; Iglesias Lopez, A.

    2015-07-01

    One of the Climate Change mitigation proposals suggested by the IPCC (Intergovernmental Panel on Climate Change) in its Synthesis Report 2007 involves the launch of applications for capturing and storing carbon dioxide, existing three different geological structures suitable for gas storage: oil and gas depleted reservoirs, useless coal layers and deep saline structures. In case of deep saline structures, the main problem to prepare a study of CO{sub 2} storage is the difficulty of obtaining geological data for some selected structure with characteristics that could be suitable for injection and gas storage. According to this situation, the solution to analyze the feasibility of a storage project in a geological structure will need numerical simulation from a 3D terrain model. Numerical methods allow the simulation of the carbon dioxide filling in saline structures from a well, used to inject gas with a particular flow. This paper presents a methodology to address the modeling and simulation process of CO{sub 2} injection into deep saline aquifers. (Author)

  4. Numerical Simulation of Multiphase Hydromechanical Processes Induced by CO2 Injection into Deep Saline Aquifers Simulation numérique des processus hydromécaniques polyphasiques provoqués par l’injection de CO2 dans des aquifères salins profonds

    Directory of Open Access Journals (Sweden)

    Goerke U.-J.

    2011-02-01

    Full Text Available In this paper, the conceptual modeling and the numerical simulation of two-phase flow during CO2 injection into deep saline aquifers is presented. The work focuses on isothermal short-term processes in the vicinity of the injection well. Governing differential equations are based on balance laws for mass and momentum, and completed by constitutive relations for the fluid and solid phases as well as their mutual interactions. Constraint conditions for the partial saturations and the pressure fractions of CO2 and brine are defined. To characterize the stress state in the solid matrix, the effective stress principle is applied. The coupled problem is solved using the inhouse scientific code OpenGeoSys (an open source finite element code and verified with benchmarks. Cet article présente le concept de la modélisation ainsi que la simulation numérique d’écoulement biphasé lors de l’injection de CO2 dans des aquifères salins profonds. L’étude se concentre sur des processus à court terme dans la proximité de puits d’injection dans les conditions isothermes. Les équations différentielles principales sont dérivées des équations de bilan de masse et de la quantité de mouvement, et elles sont complétées par des relations constitutives pour des phases solides et fluides ainsi que leur interaction. Les conditions de contrainte sont définies pour la saturation partielle, les fractions de pression de CO2 et l’eau salée. Pour caractériser l’état de contrainte dans la matrice solide, le principe de contrainte effective est appliqué. Le problème couplé considéré est résolu en utilisant le logiciel scientifique interne OpenGeoSys (un logiciel d’éléments finis libre d’accès et vérifié avec des exemples pour les processus concernés.

  5. Design of Injection Mold for Repeater Panel%复读机面盖注塑模设计

    Institute of Scientific and Technical Information of China (English)

    蒋育华; 胡琪; 付鹏

    2012-01-01

    The structure characteristics of plastic part of repeater panel was analyzed. The design methods for combined molding parts and side core-pulling mechanism of the mold were expounded. The practical production proves that the actions of core-pulling and demoulding are steady and reliable, the pin-point gate can satisfy the appearance requirement of the plastic part, and the quality of the plastic part can meet the technical requirements.%分析了复读机面盖塑件的结构特点,阐述了该模具组合式成型零件及侧抽芯机构的设计方法.经生产实践证明:该模具的抽芯及脱模动作均平稳可靠,点浇口保证了塑件的外观要求,塑件质量可以满足技术要求.

  6. Effects of altering motivation for food in rats trained with food reinforcement to discriminate between d-amphetamine and saline injections.

    Science.gov (United States)

    Lotfizadeh, Amin D; Redner, Ryan; Edwards, Timothy L; Quisenberry, Amanda J; Baker, Lisa E; Poling, Alan

    2012-12-01

    Previous studies have shown that altering motivation typically affects stimulus generalization in animals trained to discriminate exteroceptive stimuli, but few studies have evaluated the effects of manipulating motivation on drug stimuli. In the few published studies, motivation levels were manipulated by arranging different feeding conditions prior to stimulus generalization tests with rats trained to discriminate morphine from vehicle and in pigeons trained to discriminate phencyclidine or pentobarbital from vehicle. In the present study, rats maintained at 80% of free-feeding weights were trained to discriminate between injections of 1.0mg/kg d-amphetamine and saline in a two-lever food-reinforced operant procedure. Generalization tests were then conducted with a range of d-amphetamine doses (0, 0.03, 0.1, and 0.3, 1.0mg/kg) when the rats were not fed before experimental sessions (high motivation) and when they were pre-fed 1g of food (moderate motivation) or their daily ration of food (low motivation) 1h before test sessions. Changing the motivation level significantly affected response rate and latency to the first response in generalizations tests, but did not significantly affect mean percentage of drug-appropriate responding (a continuous measure) or percentage of animals that selected the drug-appropriate lever (a quantal measure). The present findings indicate that manipulating motivation for food minimally impacts d-amphetamine discrimination, however, the range of conditions used to examine the effects of motivating operations on stimulus control by d-amphetamine drugs and other drugs is limited and the topic may warrant further investigation.

  7. Highly selective micro-sequential injection lab-on-valve (μSI-LOV) method for determination of ultra trace concentrations of nickel in saline matrices using detection by electrothermal atomic absorption spectrometr

    DEFF Research Database (Denmark)

    Long, Xiangbao; Miró, Manuel; Jensen, Rikard

    2006-01-01

    A highly selective procedure is proposed for the determination of ultra trace level concentrations of nickel in saline aqueous matrices exploiting a micro sequential injection lab-on-salve (μSI-LOV) sample pretreatment protocol comprising bead injection separation/pre-concentration and detection...... by electrothermal atomic absorption spectrometry (ETAAS). Based on the dimethylglyoxime (DMG) gravimetric procedure used for nickel analysis, the sample, as contained in pH 9.0 buffer, is, after on-line merging with the chelating reagent, transported to a reaction coil attached to one of the external ports...

  8. Analysis on repeated injection of marine diesel engine and its application%船舶柴油机重复喷射分析及应用

    Institute of Scientific and Technical Information of China (English)

    魏安; 吴桂涛; 闫耀光

    2012-01-01

    建立相应的物理、数学模型,通过分析船舶柴油机喷射时前进波与反射波关系,了解产生重复喷射的机理,以及影响船舶柴油机产生重复喷射的因素,旨在为船员在管理维护柴油机时提供理论依据.%Appropriate physical and mathematical models were established,and the repeat injection mechanism and its influencing factors were obtained through analyzing the relationship between progressive wave and reflected wave while marine diesel engine was in jetting.The analysis can give theoretical basis for crews in management and maintenance for the diesel engine.

  9. Successful Treatment of Hemifacial Myokymia and Dystonia Associated to Linear Scleroderma “En Coup de Sabre” with Repeated Botox Injections

    Directory of Open Access Journals (Sweden)

    Carlos A. Cañas

    2012-01-01

    Full Text Available Linear scleroderma “en coup de sabre” (LSCS is a form of localized scleroderma presents as band-like sclerotic lesions of the frontoparietal area. It has been reported in association with diverse neurological manifestations like seizures, migraine, neuromyotonia, dystonia and abnormalities in MRI and CT studies as cerebral atrophy, white matter lesions, intraparenchymal calcification, meningeocortical alterations, and skull atrophy. We describe a patient with LSCS associated with two abnormal movements: permanent myokimia of right masseter muscle and recurrent spasmodic retraction of right cigomatic and depressor labii inferioris muscles. He was initially treated with methotrexate and steroids without response, so later on he underwent repeated Botox injections with remarkable improvement.

  10. 基于数值模拟探讨提高咸水层CO2封存注入率的途径%Numerical investigation for enhancing injectivity of CO2 storage in saline aquifers

    Institute of Scientific and Technical Information of China (English)

    许雅琴; 张可霓; 王洋

    2012-01-01

    咸水层CO2地质封存是减少大气中CO2排放量的有效途径.CO2注入率是衡量咸水层中CO2注入能力的有效因素,因此,研究注入速率的变化规律及提高的措施是很有工程价值的.在很多区域,地层的低渗透性限制了CO2的注入率.针对鄂尔多斯盆地的水文地质条件,通过数值模拟,探讨在低渗透性咸水层中提高CO2注入率的途径,包括改变储层中的盐度、采用水平井注入、增加注入井段的长度以及采取水力压裂等工程措施.其中改变储层中的盐度可通过在注入C02前向储层中注入一定量的水来实现.模拟结果表明,这些方式可以有效地提高CO2注入率,其中水平井改造方式和水力压裂工程措施效果显著,盐度改造措施在地层初始含盐度较高时,会有更好的效果.研究结果可为鄂尔多斯盆地和类似地区的咸水层CO2地质封存项目提供参考.%CO2 storage in deep saline aquifers is considered to be an imperative practical mean for reducing greenhouse gas emissions. Injectivity is one of key factors for determining the feasibility for storage of CO2 in a brine field. Research into the injection rate variation rules and the measures to improve is of great value. Many saline aquifers have relatively low permeability which limits the injection rate of CO2 to the aquifers. In this paper, numerical simulation studies of carbon dioxide storage in brine-saturated reservoirs have been conducted to investigate the approaches for enhancing injectivity through changing the fluid salinity in aquifer, using horizontal well or longer injection screen, and introducing hydraulic fracturing for storage aquifer improvement. Changing fluid salinity can be implemented through injecting a slug of fresh water prior to commencement of CO2 injection. Setup of the models is loosely based on the hydrogeological conditions in Ordos basin. Modeling results indicate that these approaches can effectively improve the

  11. A live birth of activated one-day-old unfertilized oocyte for a patient who experienced repeatedly near-total fertilization failure after intracytoplasmic sperm injection

    Institute of Scientific and Technical Information of China (English)

    LU Qun; CHEN Xi; LI Yang; ZHANG Xiao-hong; LIANG Rong; ZHAO Yong-ping; WEI Li-hui; SHEN Huan

    2012-01-01

    Total or near-total fertilization failure after intracytoplasmic sperm injection (ICSI) is a rare event,but it occurs repeatedly because of sperm defects in activating oocyte.The case presents a successful pregnancy and live birth after calcium ionophore A23187 (A23187) activation on one-day-old unfertilized oocytes in a patient whose husband suffered oligoasthenoteratozoospermia,and who had experienced repeated near-total fertilization failure after ICSI.In the second ICSI cycle,only one oocyte was fertilized while nine were unfertilized.Oocyte activation with A23187 were performed on the one-day-old unfertilized oocytes after ICSI and resulted in fertilization and embryo transfer.A clinical pregnancy was achieved and a healthy baby was born.To our knowledge,this is the first reported case of a healthy birth after oocyte activation on the one-day-old unfertilized oocyte.This indicates that “rescue oocyte activation” on one-day-old unfertilized oocytes after ICSI may be helpful for preventing total or near-total fertilization failure after ICSI.

  12. Different locomotor sensitization responses to repeated cocaine injections are associated with differential phosphorylation of GluA1 in the dorsomedial striatum of adult rats.

    Science.gov (United States)

    Kim, Myonghwan; Kim, Wonju; Baik, Ja-Hyun; Yoon, Bong-June

    2013-11-15

    Behavioral sensitization to psychostimulants reflects neural adaptation, which might share a common mechanism with drug addiction. Outbred male rats show different locomotor sensitization responses to cocaine, and cocaine also produces varied addictive progress in humans. We investigated whether differences in the induction of sensitization would affect the long-term persistence of sensitized locomotor activity, and we sought to determine the molecular basis for the variability in sensitization. Male Sprague-Dawley rats that showed sensitized locomotor responses over 5 consecutive daily cocaine injections (SENS) had significantly lower initial locomotor responses to the 1st cocaine exposure than did rats that did not show locomotor sensitization (NONS). Furthermore, rats that underwent 1 month of cocaine withdrawal after 5 repeated cocaine injections also exhibited sensitized or non-sensitized locomotor responses to a challenge injection of cocaine (SENS-C or NONS-C, respectively). This variability was also related to the initial responsiveness to cocaine. We examined the level of phosphorylation of the GluA1 subunit of α-amino-3-hydroxy-5-methyl-4-isoxazolepropioniate receptor (AMPAR) in the dorsal striatum and found that there were significant differences between the sensitized rats and the non-sensitized rats. pGluA1-Ser831 was increased in the SENS rats during the induction of locomotor sensitization, and pGluA1-Ser845 was increased in the SENS-C rats during the expression of locomotor sensitization. These phosphorylation changes were observed in the dorsomedial striatum (DMS) of adult rats but not in the dorsolateral striatum (DLS) of adults. Our findings suggest that differential phosphorylation of AMPAR might be an important mechanism that contributes to the development of locomotor sensitization to cocaine in adult rats.

  13. Peritoneal adhesion prevention with a biodegradable and injectable N,O-carboxymethyl chitosan-aldehyde hyaluronic acid hydrogel in a rat repeated-injury model

    Science.gov (United States)

    Song, Linjiang; Li, Ling; He, Tao; Wang, Ning; Yang, Suleixin; Yang, Xi; Zeng, Yan; Zhang, Wenli; Yang, Li; Wu, Qinjie; Gong, Changyang

    2016-01-01

    Postoperative peritoneal adhesion is one of the serious issues because it induces severe clinical disorders. In this study, we prepared biodegradable and injectable hydrogel composed of N,O-carboxymethyl chitosan (NOCC) and aldehyde hyaluronic acid (AHA), and assessed its anti-adhesion effect in a rigorous and severe recurrent adhesion model which is closer to clinical conditions. The flexible hydrogel, which gelated in 66 seconds at 37 °C, was cross-linked by the schiff base derived from the amino groups of NOCC and aldehyde groups in AHA. In vitro cytotoxicity test showed the hydrogel was non-toxic. In vitro and in vivo degradation examinations demonstrated the biodegradable and biocompatibility properties of the hydrogel. The hydrogel discs could prevent the invasion of fibroblasts, whereas fibroblasts encapsulated in the porous 3-dimensional hydrogels could grow and proliferate well. Furthermore, the hydrogel was applied to evaluate the anti-adhesion efficacy in a more rigorous recurrent adhesion model. Compared with normal saline group and commercial hyaluronic acid (HA) hydrogel, the NOCC-AHA hydrogel exhibited significant reduction of peritoneal adhesion. Compared to control group, the blood and abdominal lavage level of tPA was increased in NOCC-AHA hydrogel group. These findings suggested that NOCC-AHA hydrogel had a great potential to serve as an anti-adhesion candidate. PMID:27869192

  14. Peritoneal adhesion prevention with a biodegradable and injectable N,O-carboxymethyl chitosan-aldehyde hyaluronic acid hydrogel in a rat repeated-injury model

    Science.gov (United States)

    Song, Linjiang; Li, Ling; He, Tao; Wang, Ning; Yang, Suleixin; Yang, Xi; Zeng, Yan; Zhang, Wenli; Yang, Li; Wu, Qinjie; Gong, Changyang

    2016-11-01

    Postoperative peritoneal adhesion is one of the serious issues because it induces severe clinical disorders. In this study, we prepared biodegradable and injectable hydrogel composed of N,O-carboxymethyl chitosan (NOCC) and aldehyde hyaluronic acid (AHA), and assessed its anti-adhesion effect in a rigorous and severe recurrent adhesion model which is closer to clinical conditions. The flexible hydrogel, which gelated in 66 seconds at 37 °C, was cross-linked by the schiff base derived from the amino groups of NOCC and aldehyde groups in AHA. In vitro cytotoxicity test showed the hydrogel was non-toxic. In vitro and in vivo degradation examinations demonstrated the biodegradable and biocompatibility properties of the hydrogel. The hydrogel discs could prevent the invasion of fibroblasts, whereas fibroblasts encapsulated in the porous 3-dimensional hydrogels could grow and proliferate well. Furthermore, the hydrogel was applied to evaluate the anti-adhesion efficacy in a more rigorous recurrent adhesion model. Compared with normal saline group and commercial hyaluronic acid (HA) hydrogel, the NOCC-AHA hydrogel exhibited significant reduction of peritoneal adhesion. Compared to control group, the blood and abdominal lavage level of tPA was increased in NOCC-AHA hydrogel group. These findings suggested that NOCC-AHA hydrogel had a great potential to serve as an anti-adhesion candidate.

  15. PnLRR-RLK27, a novel leucine-rich repeats receptor-like protein kinase from the Antarctic moss Pohlia nutans, positively regulates salinity and oxidation-stress tolerance

    Science.gov (United States)

    Wang, Jing; Liu, Shenghao; Li, Chengcheng; Wang, Tailin; Chen, Kaoshan

    2017-01-01

    Leucine-rich repeats receptor-like kinases (LRR-RLKs) play important roles in plant growth and development as well as stress responses. Here, 56 LRR-RLK genes were identified in the Antarctic moss Pohlia nutans transcriptome, which were further classified into 11 subgroups based on their extracellular domain. Of them, PnLRR-RLK27 belongs to the LRR II subgroup and its expression was significantly induced by abiotic stresses. Subcellular localization analysis showed that PnLRR-RLK27 was a plasma membrane protein. The overexpression of PnLRR-RLK27 in Physcomitrella significantly enhanced the salinity and ABA tolerance in their gametophyte growth. Similarly, PnLRR-RLK27 heterologous expression in Arabidopsis increased the salinity and ABA tolerance in their seed germination and early root growth as well as the tolerance to oxidative stress. PnLRR-RLK27 overproduction in these transgenic plants increased the expression of salt stress/ABA-related genes. Furthermore, PnLRR-RLK27 increased the activities of reactive oxygen species (ROS) scavengers and reduced the levels of malondialdehyde (MDA) and ROS. Taken together, these results suggested that PnLRR-RLK27 as a signaling regulator confer abiotic stress response associated with the regulation of the stress- and ABA-mediated signaling network. PMID:28241081

  16. Indicators: Salinity

    Science.gov (United States)

    Salinity is the dissolved salt content of a body of water. Excess salinity, due to evaporation, water withdrawal, wastewater discharge, and other sources, is a chemical sterssor that can be toxic for aquatic environments.

  17. Evidences of Protective Potentials of Microdoses of Ultra-High Diluted Arsenic Trioxide in Mice Receiving Repeated Injections of Arsenic Trioxide

    Directory of Open Access Journals (Sweden)

    Pathikrit Banerjee

    2011-01-01

    Full Text Available The present study was undertaken to examine if microdoses of ultra-high diluted arsenic trioxide (a potentized homeopathic remedy, Arsenicum Album 200C, diluted 10-400 times have hepatoprotective potentials in mice subjected to repeated injections of arsenic trioxide. Arsenic intoxicated mice were divided into: (i those receiving Arsenicum Album-200C daily, (ii those receiving the same dose of diluted succussed alcohol (Alc 200C and (iii another group receiving neither drug nor succussed alcohol. Two other control groups were also maintained: one fed normal diet only and the other receiving normal diet and Alc-200C. Toxicity biomarkers like aspartate and alanine aminotransferases, glutathione reductase, catalase, succinate dehydrogenase, superoxide dismutase and reduced glutathione contents were periodically assayed keeping the observer “blinded”. Additionally, electron microscopic studies and gelatin zymography for matrix metalloproteinases of liver tissues were made at day 90 and 120. Blood glucose, hemoglobin, estradiol and testosterone contents were also studied. Compared to controls, Arsenicum Album-200C fed mice showed positive modulations of all parameters studied, thereby providing evidence of protective potentials of the homeopathic drug against chronic arsenic poisoning.

  18. Huperzine A inhibits immediate addictive behavior but not behavioral sensitization following repeated morphine administration in rats.

    Science.gov (United States)

    Sun, Jinling; Tian, Lin; Cui, Ruisi; Li, Xinwang

    2017-04-01

    Acetylcholinesterase inhibitors are regarded as promising therapeutic agents to treat addiction. The current study aimed to examine the effects of huperzine A, a cholinesterase inhibitor, on behavioral sensitization induced by repeated morphine administration and relapse induced by contextual conditioning. The present study also assessed whether the state-dependency hypothesis may explain the results. Adult rats were divided into four groups (n=8) and intraperitoneally injected with 0.2, 0.3 or 0.4 mg/kg huperzine A or saline (1 ml/kg, control), for 5 days. The effect of repeated huperzine A administration alone on locomotor activity was assessed. For the experiments that analyzed the development of morphine-induced sensitization, 40 rats were divided into five groups (n=8): Saline+Saline, Saline+Morphine, 0.2, 0.3 and 0.4 mg/kg huperzine A+Morphine. Following a withdrawal period of 7 days, all animals were administered saline or morphine, as appropriate. To test the state-dependency hypothesis, the rats in the Saline+Morphine group were injected with saline and morphine, while the other three groups were administered different doses of huperzine A and morphine. To examine the effect of huperzine A on the expression of morphine-induced sensitization, the rats in huperzine A+Morphine groups were injected with appropriate concentrations of huperzine A, and morphine. The current results indicated that the administration of huperzine A alone did not affect locomotor activity, while higher doses of huperzine A inhibited the addictive behavior induced by morphine at the development phase. Additionally, huperzine A administration during the expression phase of morphine sensitization did not inhibit the relapse induced by administration of saline. Furthermore, 0.4 mg/kg huperzine A inhibited the expression of morphine-induced behavioral sensitization. Therefore, the results of the current study do not support the state-dependency hypothesis.

  19. Vertically integrated approaches to large scale CO2 storage: Evaluating long-term storage security of CO2 injection in saline aquifers

    Science.gov (United States)

    Gasda, S. E.; Nordbotten, J.; Celia, M. A.

    2009-12-01

    Storage security of injected carbon dioxide (CO2) is an essential component of risk management for geological carbon sequestration operations. During the injection and early post-injection periods, CO2 leakage may occur along faults and leaky wells, but this risk may be partly managed by proper site selection and sensible deployment of monitoring and remediation technologies. On the other hand, long-term storage security is an entirely different risk management problem—one that is dominated by a mobile CO2 plume that may travel over very large spatial and temporal scales before it is trapped by different physical and chemical processes. The primary trapping mechanisms are capillary and solubility trapping, which evolve over thousands to tens of thousands of years and can immobilize a significant portion of the mobile, free-phase CO2 plume. However, these processes are complex, involving a combination of small and large spatial scales over varying time scales. Solubility trapping is a prime example of this complexity, where small-scale density instabilities in the dissolved CO2 region leads to convective mixing that has that has a significant effect on the large-scale dissolution process over very long time scales. Using appropriate models that can capture both large and small-scale effects is essential for understanding the role of dissolution and convective mixing on the long-term storage security of CO2 sequestration operations. There are several approaches to modeling long-term CO2 trapping mechanisms. One modeling option is the use of traditional numerical methods, which are often highly sophisticated models that can handle multiple complex phenomena with high levels of accuracy. However, these complex models quickly become prohibitively expensive for the type of large-scale, long-term modeling that is necessary for risk assessment applications such as the late post-injection period. We present an alternative modeling option, the VESA model, that combines

  20. Dependence on injection temperature and on aquifer's petrophysical properties of the local stress applying on the pore wall of a crystallized pore in the context of CO2 storage in deep saline aquifers

    Science.gov (United States)

    Osselin, Florian; Fen-Chong, Teddy; Fabbri, Antonin; Lassin, Arnault; Pereira, Jean-Michel; Dangla, Patrick

    2013-11-01

    The development of CCS (carbon capture and storage) currently faces numerous problems and particularly the precipitation of salts induced by the drying of the porous medium during injection of carbon dioxide in deep saline aquifers. This precipitation has several consequences, and particularly the creation of a crystallization pressure which can have an important mechanical impact on the host rock. Literature on crystallization pressure is one century rich of experimental and theoretical works. However, applications have been performed in the field of civil engineering and building science only, and, despite they are of paramount importance in the context of CCS, studies about this phenomenon in deep reservoir conditions are currently lacking. In this paper, we retrieve the classic crystallization pressure equation within the framework of geochemistry and present its explicit form of dependence with temperature, pressure, and composition. Evaluation of the crystallization pressure has then been proceeded considering the injection conditions and a sketch of in-pore crystallization process. The evolution of the local stress transmitted to a crystallized pore wall is found to be strongly related to the petrophysical properties of the medium and to the injection temperature of the carbon dioxide under the assumption of constant salt concentration during the precipitation process. Values differ strongly with the considered mineral, depending particularly on the solubility, and can reach in some conditions 165 MPa, making crystallization pressure a major factor in the mechanical behavior of the aquifer.

  1. Distribution of Flunixin Residues in Muscles of Dairy Cattle Dosed with Lipopolysaccharide or Saline and Treated with Flunixin by Intravenous or Intramuscular Injection.

    Science.gov (United States)

    Shelver, Weilin L; Schneider, Marilyn J; Smith, David J

    2016-12-28

    Twenty dairy cows received flunixin meglumine at 2.2 mg/kg bw, administered once daily by either the intravenous (IV) or intramuscular (IM) route for three consecutive days with either intravenous normal saline (NS) or lipopolysaccharide (LPS) providing a balanced design with five animals per group. Cows were sacrificed after a 4 day withdrawal period, and 13 muscle types were collected and assayed for flunixin by LC-MS/MS. After elimination of sample outliers, the main effects of route of administration (IV or IM), treatment (NS or LPS), and tissue type significantly (P flunixin residues, with no interaction (P > 0.05). Intramuscular (nonlabel) flunixin administration produced greater (P flunixin residues in muscle than the IV (label) administration, whereas LPS resulted in lower flunixin levels. Differences among the tissue levels indicate it is necessary to specify the tissue to be used for any monitoring of drug levels for consumer protection.

  2. Salinity Energy.

    Science.gov (United States)

    Schmitt, Walter R.

    1987-01-01

    Discussed are the costs of deriving energy from the earth's natural reserves of salt. Argues that, as fossil fuel supplies become more depleted in the future, the environmental advantages of salinity power may prove to warrant its exploitation. (TW)

  3. Narrow and broad senses on salinity scale

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The narrow sense and applicable limit of Practical Salinity Scale 1978 (PSS78) and volumetric titration using silver nitrate to measure the salinity of non-conservative oceanwater are discussed.The salinity obtained by electrical conductivity method and chlorinity salinity method obviously deviates from the absolute salinity (SA). The Density Salinity Scale (DSS98) proposed by the writers can be extensively used in conservative and non-conservative water samples.The merits of the density salinity scale are as follows,(1) The Density Salinity Scale is only related to seawater mass and its buoyant effect, and is not influenced by the variation in seawater composition, and therefore, has high reliability, and repeatability for salinity determination.(2) The salinity values measured by the DSS98 have a conservative property. For oceanwater samples the salinity values are the same as those determined by the PSS78; for non-conservative water samples (e.g. samples from industrial sources), the salinity values are close to the absolute salinity values in comparison with those measured by the PSS78 and the Knudsen method.(3)For a solution with given solute mass, the solution concentration can be converted into the corresponding salinity by the Density Salinity Scale using the expansion coefficient of the solution and the calibration coefficient of the partial molar volume of the solute.

  4. Development and testing of a novel lab-scale direct steam-injection apparatus to hydrolyse model and saline crop slurries.

    Science.gov (United States)

    Santi, Guglielmo; Guglielmo, Santi; D'Annibale, Alessandro; Alessandro, D'Annibale; Petruccioli, Maurizio; Maurizio, Petruccioli; Crognale, Silvia; Silvia, Crognale; Ruzzi, Maurizio; Maurizio, Ruzzi; Valentini, Riccardo; Riccardo, Valentini; Moresi, Mauro; Moresi, Mauro

    2012-02-20

    In this work, a novel laboratory-scale direct steam-injection apparatus (DSIA) was developed to overcome the main drawback of the conventional batch-driven lab rigs, namely the long time needed to heat fiber slurry from room to reaction temperatures greater than 150 °C. The novel apparatus mainly consisted of three units: (i) a mechanically-stirred bioreactor where saturated steam at 5-30 bar can be injected; (ii) an automatic on-off valve to flash suddenly the reaction medium after a prefixed reaction time; (iii) a cyclone separator to recover the reacted slurry. This system was tested using 0.75 dm³ of an aqueous solution of H₂SO₄ (0.5%, v/v) enriched with 50 kg m⁻³ of either commercial particles of Avicel® and Larch xylan or 0.5 mm sieved particles of Tamarix jordanis. Each slurry was heated to about 200 °C by injecting steam at 28 bar for 90 s. The process efficiency was assessed by comparing the dissolution degree of suspended solid (Y(S)), as well as xylose (Y(X)), glucose (Y(G)), and furfural (Y(F)) yields, with those obtained in a conventional steam autoclave at 130 °C for 30 or 60 min. Treatment of T. jordanis particles in DSIA resulted in Y(S) and Y(G) values quite similar to those obtained in the steam autoclave at 130 °C for 60 min, but in a less efficient hemicellulose solubilization. A limited occurrence of pentose degradation products was observed in both equipments, suggesting that hydrolysis predominated over degradation reactions. The susceptibility of the residual solid fractions from DSIA treatment to a conventional 120 h long cellulolytic treatment using an enzyme loading of 5.4 FPU g⁻¹ was markedly higher than that of samples hydrolysed in the steam autoclave, their corresponding glucose yields being equal to 0.94 and 0.22 g per gram of initial cellulose, respectively. Thus, T. jordanis resulted to be a valuable source of sugars for bioethanol production as proved by preliminary tests in the novel lab rig developed here.

  5. Genetic diversity analysis of salinity related germplasm in cotton

    OpenAIRE

    Lina Zhang; Wuwei Ye; Junjuan Wang; Baoxiang Fan; Delong Wang

    2010-01-01

    In order to study the genetic variation of salinity related cotton germplasm, 47 upland cotton accessions including 23 salinity tolerant materials and 24 salinity sensitive materials were explored using 88 simple sequence repeat (SSR) markers. We detected a total of 338 alleles at 88 SSR loci with an average of 3.841 alleles per locus, 333 of these alleles were detected in salinity tolerant germplasm and 312 alleles in salinity sensitive germplasm. Mean polymorphism information content (PIC),...

  6. Angiotensin II's role in sodium lactate-induced panic-like responses in rats with repeated urocortin 1 injections into the basolateral amygdala

    DEFF Research Database (Denmark)

    Johnson, Philip L; Sajdyk, Tammy J; Fitz, Stephanie D;

    2013-01-01

    into the BLA daily for 3 days. Five to seven days following the intra-BLA injections, we microinjected either the nonspecific A-II type 1 (AT1r) and 2 (AT2r) receptor antagonist saralasin, or the AT2r-selective antagonist PD123319 into the BLA prior to the NaLac challenge. The UCN/BLA-primed rats pre...

  7. Angiotensin II’s role in sodium lactate-induced panic-like responses in rats with repeated urocortin 1 injections into the basolateral amygdala

    OpenAIRE

    Johnson, Philip L.; Sajdyk, Tammy J.; Fitz, Stephanie D; Hale, Mathew W.; Lowry, Christopher A.; Hay-Schmidt, Anders; Shekhar, Anantha

    2013-01-01

    Rats treated with three daily urocortin 1 (UCN) injections into the basolateral amygdala (BLA; i.e., UCN/BLA-primed rats) develop prolonged anxiety-associated behavior and vulnerability to panic-like physiological responses (i.e., tachycardia, hypertension and tachypnea) following intravenous infusions of 0.5 M sodium lactate (NaLac, an ordinarily mild interoceptive stressor). In these UCN-primed rats, the osmosensitive subfornical organ (SFO) may be a potential site that detects increases in...

  8. Effect of repeated intracoronary injection of bone marrow cells in patients with ischaemic heart failure the Danish stem cell study - congestive heart failure trial (DanCell-CHF)

    DEFF Research Database (Denmark)

    Diederichsen, A.C.; Møller, Jacob Eifer; Thayssen, P.;

    2008-01-01

    BACKGROUND: It has been suggested that myocardial regeneration may be achieved by a single intracoronary bone marrow derived stem cell infusion in selected patients with ischaemic heart disease. The effect is uncertain in patients with chronic ischaemic heart failure and it is not known whether...... repeated infusions would have additional positive effects. AIMS: To assess whether two treatments of intracoronary infusion of bone marrow stem cells, administered 4 months apart, could improve left ventricular (LV) systolic function in patients with chronic ischaemic heart failure. METHODS: The study......, NYHA class improved (pstem cell treatment in patients with chronic ischaemic heart failure Udgivelsesdato: 2008/7...

  9. Optimal and safe treatment of spider leg veins measuring less than 1.5 mm on skin type IV patients, using repeated low-fluence Nd:YAG laser pulses after polidocanol injection.

    Science.gov (United States)

    Moreno-Moraga, Javier; Hernández, Esteban; Royo, Josefina; Alcolea, Justo; Isarría, M Jose; Pascu, Mihail Lucian; Smarandache, Adriana; Trelles, Mario

    2013-05-01

    Treatment of micro-veins of less than 1.5 mm with laser and with chemical sclerosis is technically challenging because of their difficulty to remedy. Laser treatment is even more difficult when dark phototypes are involved.Three groups of 30 patients each, skin type IV, and vessels measuring less than 1.5 mm in diameter, were enrolled for two treatment sessions 8 weeks apart: group A, polidocanol (POL) micro-foam injection; group B, Nd:YAG laser alone; and group C, laser after POL injection. Repeated 8-Hz low-fluence pulses, moving the hand piece over a 3-cm vein segment with an average of five laser passes maximum and with a total time irradiation of 1 s were used. Sixteen weeks after the second treatment, statistically, degree of clearance after examining photographs and patients satisfaction index, plotted on a visual analogue scale and comparing results of all three groups, results were significantly better for group C (p<0.0001). No significant differences in complications were noticed between the three groups. Efficacy of combining POL and laser proved safe and satisfactory in 96 % of patients using low-fluence laser pulses with a total cumulative energy in the 3 cm venous segment, lower than that of conventional treatment. Very few and transient complications were observed. POL foam injection followed by laser pulses is safe and efficient for vein treatment in dark-skinned patients.

  10. Long-Term Real-Life Efficacy and Safety of Repeated Ozurdex® Injections and Factors Associated with Macular Edema Resolution after Retinal Vein Occlusion: The REMIDO 2 Study.

    Science.gov (United States)

    Pommier, Stéphan; Meyer, Franck; Guigou, Sébastien; Barthelemy, Tony; Gobert, Fréderic; Hajjar, Christian; Merite, Pierre-Yves; Parrat, Eric; Rouhette, Hervé; Matonti, Fréderic

    2016-01-01

    The objective was to study long-term real-life efficacy and safety of repeated Ozurdex® injections and factors associated with macular edema (ME) resolution after retinal vein occlusion. Patients with ME after retinal vein occlusion, receiving Ozurdex®, were included to assess the following endpoints: visual acuity and central retinal thickness, retreatment, number of injections, side effects and ME resolution. ME resolution was defined as permanent discontinuation of intravitreal injections (IVTs) for at least 6 months after the last IVT. A total of 94 eyes were included with an average of 2.6 IVTs (max 6 IVTs). 58.6% of patients gained ≥15 letters and 51.1% of patients showed ME resolution. Among the resolved patients, 64.6% were treatment-naïve, 60.4% had branch retinal vein occlusion, and 78.1% gained ≥15 letters. Ozurdex® seemed to be a valuable treatment which may allow to achieve long-term anatomical and functional improvements and ME resolution with a minimum number of IVTs. © 2016 S. Karger AG, Basel.

  11. [Effect of (2"R)-4'-O-tetrahydropyranyladriamycin, a new antitumor antibiotic, on the bone marrow function of rabbits. (2) Repeated intravenous injections].

    Science.gov (United States)

    Tone, H; Kiyosaki, T; Shirai, M

    1986-02-01

    (2''R)-4'-O-Tetrahydropyranyladriamycin-HCl (THP), a new antitumor antibiotic, was intravenously injected to New Zealand White rabbits at a dose of 2.5 mg/kg every 2 weeks for 6 weeks (3 courses) or at a dose of 0.5 mg/kg/day daily for the first 5 days of a 2-week course for 6 weeks (3 courses). The total dose was 7.5 mg/kg in both dosing schedules. The peripheral leucocyte and erythrocyte counts decreased. The leucocyte count decreased to 57% of the initial count on Day 3 in the first course and then increased gradually. The decrease was smaller in the divided dosing schedule than the single dosing. The nucleated cells, especially immatured myelocytes and erythroids reduced remarkably. Subsequently the matured myelocyte ratio in bone marrow cell constituents increased and the M/E ratio increased. These changes were observed on Day 3 and reverted by Day 9 in each course. The divided dosing schedule resulted in a higher nadir. All the changes in the peripheral blood and the bone marrow reverted even after the 3 course-treatment.

  12. Practically Saline

    Directory of Open Access Journals (Sweden)

    Jonathan Schroeder MD

    2015-11-01

    Full Text Available Introduction. In December 2014, the Food and Drug Administration issued a recall of all Wallcur simulation products due to reports of their use in clinical practice. We present a case of septic shock and multiorgan failure after the accidental intravenous infusion of a nonsterile Wallcur simulation product. Case. The patient presented with symptoms of rigors and dyspnea occurring immediately after infusion of Wallcur Practi-0.9% saline. Initial laboratory evidence was consistent with severe septic shock and multiorgan dysfunction. His initial lactic acid level was 9 mmol/L (reference range = 0.5-2.2, and he had evidence of acute kidney injury and markers of disseminated intravascular coagulation. All 4 blood culture bottles isolated multidrug-resistant Empedobacter brevis. The patient recovered from his illness and was discharged with ciprofloxacin therapy per susceptibilities. Discussion. This patient represents the first described case of severe septic shock associated with the infusion of a Wallcur simulation product. Intravenous inoculation of a nonsterile fluid is rare and exposes the patient to unusual environmental organisms, toxins, or unsafe fluid characteristics such as tonicity. During course of treatment, we identified the possible culprit to be a multidrug-resistant isolate of Empedobacter brevis. We also discuss the systemic failures that led to this outbreak.

  13. 注射用右旋雷贝拉唑钠大鼠13周重复给药毒性研究%Study on Repeated Dose Toxicity of Dexrabeprazole Sodium Injection in Rats for 13 Weeks

    Institute of Scientific and Technical Information of China (English)

    戴晓莉; 戴学栋; 郭峰; 胡建庭; 马玉奎

    2016-01-01

    taken the blood at ifrst and last injection for toxicokinetics. Results The rats in the dexrabeprazole sodium injection group at 80, 20 mg·kg-1 apperanced shortness of breath, unsteady gait, prone motionless and other symptoms. The levels of RBC,HGB,HCT in the dexrabeprazole sodium injection group at 80, 20 mg·kg-1 were significantly lower than those in vehicle control group at 13 weeks (P<0.05). The change of these parameters regained to normal at 4 weeks after withdrawal. The amount of small follicular in the thyroid gland increased at 13 weeks, and failed to fully recover at 4 weeks after the withdrawal.Conclusion Repeated administration of dexrabeprazole Sodium injection (80, 20 mg·kg-1) for 13 weeks could lead to abnormal indicators related erythrocyte and pathological lesions of thyroid in rats.

  14. Molecular characterization of tat gene and long terminal repeat region of human immunodeficiency virus type-1 detected among the injecting drug users (IDUs) of Manipur, India: identification of BC recombinants.

    Science.gov (United States)

    Mullick, Ranajoy; Sengupta, Satarupa; Sarkar, Kamalesh; Chakrabarti, Sekhar

    2010-02-01

    The tat gene of human immunodeficiency virus type-1 (HIV-1) is responsible for the initiation and elongation of viral transcription through the LTR (long terminal repeat) transactivation process. Our study included structural and functional analyses of the tat gene and LTR region of 35 injecting drug users (IDUs) from Manipur (a north-eastern state in India and a potential source of HIV-1 recombinants) in order to search for the recombinants and variation in the transactivation process if any due to recombination. Analysis showed prevalence of subtype C with few BC recombinants for the tat gene showing identical recombination breakpoints. Phylogenetic analysis of the LTR region of those IDU strains showed strong resemblance to Indian subtype C forming a completely separate cluster from the other global C LTR sequences. The TAR element (transactivator response region) in all the LTR sequences was fairly conserved. Further study of the transactivation rate of the C and BC tat for the Manipur C LTR showed almost equal transactivity in both the cases. This is the first report of characterisation of tat gene and LTR region of HIV-1 samples among IDUs from north-eastern India.

  15. Comparative results of gastric submucosal injection with hydroxypropyl methylcellulose, carboxymethylcellulose and normal saline solution in a porcine model Resultados comparativos de injeção submucosa gástrica com hidroximetil celulose, carboximetilcelulose e soro fisiológico em modelo suíno

    Directory of Open Access Journals (Sweden)

    Luciano Lenz

    2010-06-01

    Full Text Available CONTEXT: Endoscopic mucosal resection is an established modality for excision of sessile lesions in the gastrointestinal tract. Submucosal fluid injection creates a cushion and may prevent thermal injury and perforation. OBJECTIVES: This blind study investigated the performance of three different solutions to create submucosal fluid cushions in porcine stomach. METHODS: Three solutions were injected in the stomach of nine pigs BR1: normal saline solution, carboxymethylcellulose 0.5% and hydroxypropyl methylcellulose 0.25%. In each pig, submucosal injections with 6 mL per test-solution were performed. One drop of methylene blue was added to all injections for better visualization. The time for the bleb to disappear was recorded. RESULTS: The overall median time of visible submucosal cushion was 37 minutes (range 12-60 min for hydroxypropyl methylcellulose, 31 minutes for carboxymethylcellulose (range 10-43 min and 19 minutes for normal saline solution (range 8-37 min. There was no statistically significant difference neither between normal saline solution and carboxymethylcellulose (P = 0.146 nor carboxymethylcellulose and hydroxypropyl methylcellulose (P = 0.119 but the median duration of hydroxypropyl methylcellulose was significantly longer than normal saline solution (P = 0.039. CONCLUSIONS: The length of hydroxypropyl methylcellulose submucosal fluid cushion is longer in comparison with normal saline solution. The median time for carboxymethylcellulose was not longer than normal saline solution. Hydroxypropyl methylcellulose, in the concentration of 0.25%, may be a durable alternative for submucosal injection.CONTEXTO: A ressecção endoscópica mucosa é uma modalidade estabelecida para a excisão de lesões sésseis no trato gastrointestinal. A injeção de fluídos na submucosa cria uma coxim que pode prevenir lesão térmica e perfuração. OBJETIVO: Este estudo cego investiga o desempenho de três diferentes soluções para criar um

  16. Deployment Repeatability

    Science.gov (United States)

    2016-04-01

    controlled to great precision, but in a Cubesat , there may be no attitude determination at all. Such a Cubesat might treat sun angle and tumbling rates as...could be sensitive to small differences in motor controller timing. In these cases, the analyst might choose to model the entire deployment path, with...knowledge of the material damage model or motor controller timing precision. On the other hand, if many repeated and environmentally representative

  17. Non-clinical safety evaluation of single and repeated intramuscular administrations of MAGE-A3 Cancer Immunotherapeutic in rabbits and cynomolgus monkeys.

    Science.gov (United States)

    Destexhe, Eric; Grosdidier, Emilie; Baudson, Nathalie; Forster, Roy; Gerard, Catherine; Garçon, Nathalie; Segal, Lawrence

    2015-07-01

    The MAGE-A3 recombinant protein combined with AS15 immunostimulant (MAGE-A3 Cancer Immunotherapeutic) is under development by GlaxoSmithKline for the treatment of lung cancer and melanoma. We performed non-clinical safety studies evaluating potential local and systemic toxic effects induced by MAGE-A3 Cancer Immunotherapeutic in rabbits (study 1) and cynomolgus monkeys (study 2). Animals were allocated to two groups to receive a single (rabbits) or 25 repeated (every 2 weeks) injections (monkeys) of MAGE-A3 Cancer Immunotherapeutic (treatment groups) or saline (control groups). All rabbits were sacrificed 3 days post-injection and monkeys 3 days following last injection (3/5 per gender per group) or after a 3-month treatment-free period (2/5 per gender per group). Local and systemic reactions and MAGE-A3-specific immune responses (monkeys) were assessed. Macroscopic and microscopic (for rabbits, injection site only) post-mortem examinations were performed on all animals. No systemic toxicity or unscheduled mortalities were recorded. Single (rabbits) and repeated (monkeys; up to four times at the same site) injections were well tolerated. Following five to seven repeated injections, limb circumferences increased up to 26% (5 h post-injection), but returned to normal after 1-8 days. Three days after the last injection, enlargements of iliac, popliteal, axillary and inguinal lymph nodes, and increased incidence or severity of mononuclear inflammatory cell infiltrates was observed in injected muscles of treated monkeys. No treatment-related macroscopic findings were recorded after the treatment-free period. MAGE-A3-specific antibody and T-cell responses were raised in all treated monkeys, confirming test item exposure. Single or repeated intramuscular injections of MAGE-A3 Cancer Immunotherapeutic were well tolerated in rabbits and monkeys.

  18. Measuring Salinity by Conductivity.

    Science.gov (United States)

    Lapworth, C. J.

    1981-01-01

    Outlines procedures for constructing an instrument which uses an electrode and calibration methods to measure the salinity of waters in environments close to and affected by a saline estuary. (Author/DC)

  19. Effect of prostaglandin E2 injection on the structural properties of the rat patellar tendon

    Directory of Open Access Journals (Sweden)

    Ferry Scott T

    2012-01-01

    Full Text Available Abstract Background Increased tendon production of the inflammatory mediator prostaglandin E2 (PGE2 has been suggested to be a potential etiologic agent in the development of tendinopathy. Repeated injection of PGE2 into tendon has been proposed as a potential animal model for studying treatments for tendinopathy. In contrast, nonsteroidal anti-inflammatory drugs (NSAIDs which inhibit PGE2 production and are commonly prescribed in treating tendinopathy have been shown to impair the healing of tendon after acute injury in animal models. The contradictory literature suggests the need to better define the functional effects of PGE2 on tendon. Our objective was to characterize the effects of PGE2 injection on the biomechanical and biochemical properties of tendon and the activity of the animals. Our hypothesis was that weekly PGE2 injection to the rat patellar tendon would lead to inferior biomechanical properties. Methods Forty rats were divided equally into four groups. Three groups were followed for 4 weeks with the following peritendinous injection procedures: No injection (control, 4 weekly injections of saline (saline, 4 weekly injections of 800 ng PGE2 (PGE2-4 wks. The fourth group received 4 weekly injections of 800 ng PGE2 initially and was followed for a total of 8 weeks. All animals were injected bilaterally. The main outcome measurements included: the structural and material properties of the patellar tendon under tensile loading to failure, tendon collagen content, and weekly animal activity scores. Results The ultimate load of PGE2-4 wks tendons at 4 weeks was significantly greater than control or saline group tendons. The stiffness and elastic modulus of the PGE2 injected tendons at 8 weeks was significantly greater than the control or saline tendons. No differences in animal activity, collagen content, or mean fibril diameter were observed between groups. Conclusions Four weekly peritendinous injections of PGE2 to the rat patellar

  20. Repeated administration of dopaminergic agents in the dorsal hippocampus and morphine-induced place preference.

    Science.gov (United States)

    Zarrindast, M-R; Nasehi, M; Rostami, P; Rezayof, A; Fazli-Tabaei, S

    2005-03-01

    The aim of the present experiments was to investigate whether repeated intra-hippocampal CA1 (intra-CA1) administration of dopaminergic agents can affect morphine-induced conditioned place preference (CPP). Effects of repeated intra-CA1 injections of dopamine (DA) receptor agonists and antagonists on morphine-induced CPP in rats were investigated using an unbiased 3-day schedule of place conditioning. Animals receiving once-daily subcutaneous (s.c.) injections of morphine (1-9 mg/kg) or saline (1.0 ml/kg, s.c.) showed a significant place preference in a dose-dependent manner: the maximum response was observed with 3 mg/kg morphine. Three days' intra-CA1 injections of apomorphine (0.25-1 microg/rat) followed by 5 days free of the drug, significantly decreased morphine CPP (1 and 3 mg/kg, s.c.). Moreover, pre-treatment with the highest dose of apomorphine (1 microg/rat) altered the effect of morphine to an aversive response. The morphine (1 and 3 mg/kg) CPP was also significantly decreased in animals that previously received three intra-CA1 injections of SKF 38393 (2-9 microg/rat), quinpirole (1-3 microg/rat) or sulpiride (1-3 microg/rat), and significantly increased in animals that had previously received three intra-CA1 injections of SCH 23390 (0.02 microg/rat). The 3-day pre-treatment with apomorphine, SKF 38393 or quinpirole reduced locomotor activity in the test session, while SCH 23390 and sulpiride did not have any influence on locomotor activity. It is concluded that repeated injections of DA receptor agents in the dorsal hippocampus, followed by 5 days free of the drugs, can affect morphine reward.

  1. Acute withdrawal from repeated cocaine treatment enhances latent inhibition of a conditioned fear response.

    Science.gov (United States)

    Murphy, C A; Heidbreder, C; Feldon, J

    2001-02-01

    Psychostimulant-induced locomotor sensitization and disrupted latent inhibition (LI) of a classically conditioned association are two paradigms that have been widely studied as animal behavioural models of psychosis. In this study we assessed the effects of withdrawal from the repeated intermittent administration of cocaine on LI of a conditioned fear response. Animals which were either preexposed (PE) to a tone conditioned stimulus (CS) or naive to the tone (i.e. non-preexposed: NPE) subsequently experienced 10 pairings of the tone CS with footshock. Afterwards, both groups received five daily injections of cocaine (20 mg/kg, i.p.) or saline. After 3 days of withdrawal from drug treatment, animals were tested for conditioned freezing to the context of the footshock chamber, and 1 day later, for conditioned freezing to the tone CS. Cocaine-sensitized animals exhibited markedly enhanced LI compared to saline-treated animals, due to the fact that NPE-cocaine animals spent more time freezing during the tone CS than NPE-saline animals, whereas PE-cocaine animals showed a tendency toward reduced freezing compared to the saline groups. While these results suggest the presence of increased anxiety in cocaine-withdrawn NPE animals, the absence of this effect in cocaine-withdrawn PE rats indicates that cocaine withdrawal also influences the retrieval of previously learned information.

  2. Tolerance in the anxiolytic profile following repeated administration of diazepam but not buspirone is associated with a decrease in the responsiveness of postsynaptic 5-HT-1A receptors.

    Science.gov (United States)

    Khan, Asma; Haleem, D J

    2007-12-01

    To understand the role of serotonin (5-hydroxytryptamine; 5-HT)-1A receptors in the treatment of anxiety and the development of tolerance to benzodiazepines the present study was designed to monitor the responsiveness of postsynaptic 5-HT-1A receptors following repeated administration of diazepam and buspirone. Results show that tolerance in the anxiolytic profile is produced following repeated administration (2 weeks) of diazepam (2 mg/kg) but not buspirone (0.5 mg/kg). The behavioral effects of 8-OH-DPAT at a dose of 0.25 mg/kg were monitored 3 days after repeated administration of saline or buspirone or diazepam. The results show that 8-OH-DPAT elicited forepaw treading was smaller in repeated diazepam but not repeated buspirone injected rats, while hyperlocomotive effects of 8-OH-DPAT were smaller in both repeated buspirone and repeated diazepam injected rats. The results suggest that postsynaptic 5-HT-1A receptor-dependent responses were attenuated following long-term administration of diazepam but not buspirone. Role of 5-HT-1A receptors in the development of tolerance to the anxiolytic effects of diazepam but not buspirone is discussed.

  3. Medroxyprogesterone Injection

    Science.gov (United States)

    Medroxyprogesterone intramuscular (into a muscle) injection and medroxyprogesterone subcutaneous (under the skin) injection are used to prevent pregnancy. Medroxyprogesterone subcutaneous injection is also used to treat endometriosis (a condition in which ...

  4. Pentamidine Injection

    Science.gov (United States)

    Pentamidine injection is used to treat pneumonia caused by a fungus called Pneumocystis carinii. It is in ... Pentamidine injection comes as powder to be mixed with liquid to be injected intramuscularly (into a muscle) ...

  5. An Evaluation of the Carbon Sequestration Potential of the Cambro-Ordovician Strata of the Illinois and Michigan Basins. Part 1. Evaluation of Phase 2 CO2 Injection Testing in the Deep Saline Gunter Sandstone Reservoir (Cambro-Ordovician Knox Group), Marvin Blan No. 1 Hancock County, Kentucky Part 2. Time-lapse Three-Dimensional Vertical Seismic Profile (3D-VSP) of Sequestration Target Interval with Injected Fluids

    Energy Technology Data Exchange (ETDEWEB)

    Bowersox, Richard [Univ. of Illinois, Champaign, IL (United States); Hickman, John [Univ. of Illinois, Champaign, IL (United States); Leetaru, Hannes [Univ. of Illinois, Champaign, IL (United States)

    2012-12-20

    Part 1 of this report focuses on results of the western Kentucky carbon storage test, and provides a basis for evaluating injection and storage of supercritical CO2 in Cambro-Ordovician carbonate reservoirs throughout the U.S. Midcontinent. This test demonstrated that the Cambro- Ordovician Knox Group, including the Beekmantown Dolomite, Gunter Sandstone, and Copper Ridge Dolomite in stratigraphic succession from shallowest to deepest, had reservoir properties suitable for supercritical CO2 storage in a deep saline reservoir hosted in carbonate rocks, and that strata with properties sufficient for long-term confinement of supercritical CO2 were present in the deep subsurface. Injection testing with brine and CO2 was completed in two phases. The first phase, a joint project by the Kentucky Geological Survey and the Western Kentucky Carbon Storage Foundation, drilled the Marvin Blan No. 1 carbon storage research well and tested the entire Knox Group section in the open borehole – including the Beekmantown Dolomite, Gunter Sandstone, and Copper Ridge Dolomite – at 1152–2255 m, below casing cemented at 1116 m. During Phase 1 injection testing, most of the 297 tonnes of supercritical CO2 was displaced into porous and permeable sections of the lowermost Beekmantown below 1463 m and Gunter. The wellbore was then temporarily abandoned with a retrievable bridge plug in casing at 1105 m and two downhole pressure-temperature monitoring gauges below the bridge plug pending subsequent testing. Pressure and temperature data were recorded every minute for slightly more than a year, providing a unique record of subsurface reservoir conditions in the Knox. In contrast, Phase 2 testing, this study, tested a mechanically-isolated dolomitic-sandstone interval in the Gunter.

  6. Effects of oxygen on the re-injection characteristics of thermal water with high salinity and a high iron content; Zum Einfluss von Sauerstoff auf das Reinjektionsverhalten hochsalinarer, eisenhaltiger Thermalwaesser

    Energy Technology Data Exchange (ETDEWEB)

    Martin, M.; Koeckritz, V. [TU BA Freiberg (Germany). Inst. fuer Bohrtechnnik und Fluidbergbau; Seibt, A. [GeoForschungsZentrum PB 4.4, Neubrandenburg (Germany)

    1998-12-31

    For reasons of environmental protection and in order to maintain a constant pressure level, hydrogeothermal water must be re-injected into the reservoir after use. However, human interception in the natural fluid/rock system will change the thermodynamic parameters and also the pH and redox potential. This may cause interactions between bedrock, underground water, and the re-injected fluid and have negatives effects on injectivity. Research is going on in this field on the basis of the experience gained in geothermal heating stations in north eastern Germany. (orig.) [Deutsch] Bei einer energetischen und/oder stofflichen Nutzung hydrogeothermaler Ressourcen muessen die Waesser aus Gruenden des Umweltschutzes und der Druckerhaltung im Speicher wieder in das Reservoir verbracht werden. Durch den Eingriff in das natuerliche System Fluid/Gestein werden nicht nur thermodynamische Zustandsgroessen veraendert, sondern es sind auch pH- und Redoxpotentialaenderungen z.B. durch Gasentloesungen zu erwarten. Dies kann beim Reinjizieren zu Wechselwirkungen zwischen dem Speichergestein, dem Schichtwasser und dem injizierten Fluid fuehren, was negative Auswirkungen auf die Injektivitaetsentwicklung haben kann. Eine geeignete Methode zur Aufklaerung von Einzeleffekten und zur Abschaetzung von chemischen Wechselwirkungen stellen Kerndurchstroemungsversuche dar. Ausgangspunkt der Untersuchungen sind die Erfahrungen aus dem Betrieb Geothermischer Heizzentralen Nordostdeutschlands. (orig.)

  7. Salinity and water quality

    NARCIS (Netherlands)

    Sonneveld, C.; Voogt, W.

    2009-01-01

    The impact of salinity on greenhouse grown crops, especially when grown in substrate systems, differs from the impact of salinity on crops grown under field conditions. The most striking difference between greenhouse and field conditions is the overall much higher concentrations of nutrients in gree

  8. Repeated dose of ketamine effect to the rat hippocampus tissue

    Directory of Open Access Journals (Sweden)

    Mehtap Okyay Karaca

    2015-01-01

    Full Text Available Aim: We aimed to determine the neurotoxic effect of repeated ketamine administration on brain tissue and if neurotoxic effect was present, whether this effect continued 16 days later using histological stereological method, a quantitative and objective method. Materials and Methods: Female rats were divided into three groups, each containing five rats. Rats in Group I were given 0.9% saline solution 4 times a day for 5 days. The rats in Groups II and III were given ketamine as intraperitoneal injections. Rats in Groups I and II were sacrificed on 5 th day while the ones in Group III on 21 st day. Cornu ammonis (CA and gyrus dentatus (GD regions in hippocampus tissue of rats were studied using optic fractionation method. Findings: There were significantly less number of cells in hippocampal CA and GD regions of rats from Groups II and III compared to the ones from Group I. Difference in cell number was also significantly higher in Group III than in Group II, but this difference was not as pronounced as the one between Groups III and I. Conclusion: Repeated ketamine doses caused neurotoxicity in rat hippocampus.

  9. Varenicline impairs extinction and enhances reinstatement across repeated cycles of nicotine self-administration in rats.

    Science.gov (United States)

    Macnamara, Claire L; Holmes, Nathan M; Westbrook, R Fred; Clemens, Kelly J

    2016-06-01

    Varenicline is a partial nicotine receptor agonist widely prescribed as a smoking cessation medication. Repeated (or long-term) use of varenicline has been proposed as a treatment option for tobacco addiction. However the effect of repeated varenicline use on motivation for nicotine is unknown. Here the intravenous nicotine self-administration paradigm in rats was used to model the consequences of varenicline treatment across repeated cycles of administration, extinction and reinstatement. Rats acquired nicotine self-administration across 20 days before undergoing 6 days of extinction, where each extinction session was preceded by a single injection of varenicline or saline. This was followed by a single varenicline-free nicotine-primed reinstatement test. All rats then reacquired nicotine self-administration for 10 days followed by a second cycle of extinction. Across this period, rats either received a second cycle of varenicline (VAR-VAR) or saline (SAL-SAL), or the alternative treatment (SAL-VAR, VAR-SAL), followed by a final reinstatement test. Treatment with varenicline increased responding across the first cycle of extinction, but did not affect responding in the reinstatement test. Across the second cycle, varenicline again increased responding across extinction, and critically, rats treated with varenicline across cycle 1 and saline across cycle 2 (Group VAR-SAL) exhibited more reinstatement than rats in any other group. The effect of VAR on nicotine seeking was not due to its effects on locomotor activity. Instead, the results suggest that a history of VAR can increase vulnerability to reinstatement/relapse when its treatment is discontinued. The possible mechanisms of this increased vulnerability are discussed.

  10. Preliminary Seismic Time-lapse Results of the First Post-injection Monitoring at the Ketzin Pilot Site for CO2 Storage

    Science.gov (United States)

    Huang, Fei; Monika, Ivandic; Julin, Christopher; Lüth, Stefan; Bergmann, Peter

    2016-04-01

    Time-lapse surface seismic monitoring methods have proven to be notably successful in imaging the development of the CO2 plume injected into the 630-650 meters deep saline aquifer at the Ketzin pilot site. A 3D baseline survey was acquired in the autumn of 2005 prior to CO2 injection, followed by two 3D repeat surveys conducted in the same season of 2009 and 2012 after injection of about 22 and 61 kt of CO2, respectively. These repeat surveys showed that the CO2 plume was concentrated around the injection well with a preferred WNW propagating trend due to reservoir heterogeneity. The CO2 induced amplitude anomaly continued to grow with more CO2 injected into the reservoir. The CO2 injection ended on August 29, 2013 after a total of about 67 kt injected CO2. In the autumn of 2015, a third 3D repeat survey with a nominal fold of 25 was acquired during the post-injection phase. The acquisition was implemented with an identical template scheme and acquisition parameters as in the previous surveys. About 5500 source points were acquired during the 57 days of active acquisition. The same processing steps as used before were carried out from pre-stack to post-stack. In order to minimize changes unrelated to the site operations, cross-calibration was applied to the data. Preliminary results of the time-lapse analysis show that the obtained amplitude anomaly at the reservoir level is smaller in size than the one observed at the time of the second repeat survey. This may indicate that CO2 dissolution is active, especially east of the injection site, where permeability and flow rate appear to be lower. In comparison to the previous surveys, the maximum amplitude anomaly has moved towards the west, which is consistent with the previously observed propagating tendency of the CO2 plume within the reservoir. No CO2 leakage is observed within the overburden.

  11. Effect of repeated intracoronary injection of bone marrow cells in patients with ischaemic heart failure the Danish stem cell study--congestive heart failure trial (DanCell-CHF)

    DEFF Research Database (Denmark)

    Diederichsen, Axel Cosmus Pyndt; Møller, Jacob E; Thayssen, Per;

    2008-01-01

    BACKGROUND: It has been suggested that myocardial regeneration may be achieved by a single intracoronary bone marrow derived stem cell infusion in selected patients with ischaemic heart disease. The effect is uncertain in patients with chronic ischaemic heart failure and it is not known whether...... repeated infusions would have additional positive effects. AIMS: To assess whether two treatments of intracoronary infusion of bone marrow stem cells, administered 4 months apart, could improve left ventricular (LV) systolic function in patients with chronic ischaemic heart failure. METHODS: The study...... was prospective and non-randomised, comprising an observational baseline period of 4 months followed by an interventional period of 12 months. Intracoronary bone marrow cell infusion was performed at the end of the baseline period and repeated 4 months later. RESULTS: 32 patients were included. LV ejection...

  12. Doripenem Injection

    Science.gov (United States)

    ... injection is in a class of medications called carbapenem antibiotics. It works by killing bacteria.Antibiotics such ... if you are allergic to doripenem injection; other carbapenem antibiotics such as imipenem/cilastatin (Primaxin) or meropenem ( ...

  13. Methotrexate Injection

    Science.gov (United States)

    Methotrexate injection is used alone or in combination with other medications to treat gestational trophoblastic tumors (a ... in bones) after surgery to remove the tumor. Methotrexate injection is also used to treat severe psoriasis ( ...

  14. Bendamustine Injection

    Science.gov (United States)

    Bendamustine injection is used to treat chronic lymphocytic leukemia (CLL; a type of cancer of the white ... injection. You should use birth control to prevent pregnancy in yourself or your partner during your treatment ...

  15. Caspofungin Injection

    Science.gov (United States)

    Caspofungin injection is used in adults and children 3 months of age and older to treat yeast ... people with a weakened ability to fight infection. Caspofungin injection is in a class of antifungal medications ...

  16. Temozolomide Injection

    Science.gov (United States)

    Temozolomide is used to treat certain types of brain tumors. Temozolomide is in a class of medications called alkylating ... Temozolomide injection comes as a powder to be added to fluid and injected over 90 minutes intravenously ( ...

  17. Pembrolizumab Injection

    Science.gov (United States)

    Pembrolizumab injection is used to treat melanoma (a type of skin cancer) that cannot be treated with ... who have a specific type of melanoma tumor. Pembrolizumab injection is also used to treat a certain ...

  18. Lacosamide Injection

    Science.gov (United States)

    ... injection is in a class of medications called anticonvulsants. It works by decreasing abnormal electrical activity in ... older (about 1 in 500 people) who took anticonvulsants like lacosamide injection to treat various conditions during ...

  19. Midazolam Injection

    Science.gov (United States)

    ... injection is in a class of medications called benzodiazepines. It works by slowing activity in the brain ... breast-feeding.talk to your doctor about the risks and benefits of receiving midazolam injection if you ...

  20. Doxycycline Injection

    Science.gov (United States)

    Doxycycline injection is used to treat or prevent bacterial infections, including pneumonia and other respiratory tract infections. ... certain skin, genital, intestine, and urinary system infections. Doxycycline injection may be used to treat or prevent ...

  1. Paclitaxel Injection

    Science.gov (United States)

    ... with other medications. Paclitaxel injection manufactured with polyoxyethylated castor oil is used to treat ovarian cancer (cancer that ... cancer, and lung cancer. Paclitaxel injection with polyoxyethylated castor oil is also used to treat Kaposi's sarcoma (a ...

  2. Etanercept Injection

    Science.gov (United States)

    ... will be using the prefilled syringe or automatic injection device, tell your doctor if you or the person who will be injecting the medication for you are allergic to rubber or latex.tell your doctor and pharmacist what ...

  3. Cyclosporine Injection

    Science.gov (United States)

    Cyclosporine injection is used with other medications to prevent transplant rejection (attack of the transplanted organ by ... who have received kidney, liver, and heart transplants. Cyclosporine injection should only be used to treat people ...

  4. Estrogen Injection

    Science.gov (United States)

    The estradiol cypionate and estradiol valerate forms of estrogen injection are used to treat hot flushes (hot ... should consider a different treatment. These forms of estrogen injection are also sometimes used to treat the ...

  5. Cefotaxime Injection

    Science.gov (United States)

    Cefotaxime injection is used to treat certain infections caused by bacteria including pneumonia and other lower respiratory ... skin, blood, bone, joint, and urinary tract infections. Cefotaxime injection may also be used before surgery, and ...

  6. Ustekinumab Injection

    Science.gov (United States)

    ... Do not inject into an area where the skin is tender, bruised, red, or hard or where you have scars or stretch marks.Your doctor or pharmacist will ... injection.you should know that ustekinumab injection may decrease your ability ... new or changing skin lesions, minor infections (such as open cuts or ...

  7. Ranitidine Injection

    Science.gov (United States)

    Ranitidine injection comes as a solution (liquid) to be mixed with another fluid and injected intravenously (into a vein) over 5 to 20 minutes. Ranitidine may also be injected into a muscle. It is usually given every 6 to 8 hours, but may also be given ...

  8. Clinical experiences of normal saline pressed injection via lumbar puncture in the treatment of apnea due to acute tonsillar hernia%采用腰穿加压注液方法抢救急性枕骨大孔疝致呼吸停止的临床疗效

    Institute of Scientific and Technical Information of China (English)

    孟庆虎; 曲春城; 魏麟; 李新钢; 李刚; 费昶; 孙金龙; 王成伟; 张庆林

    2012-01-01

    Objective To summarize the clinical experiences of normal saline pressed injection via lumbar puncture in the treatment of acute tonsillar hernia induced apnea.This procedure was routinely carried out after external ventricular drainage and/or lesion removal via open craniotomy.Methods During the period of 1969 to 2005,a total of 43 patients failed to regain respiratory after external ventricular drainage using rapid small hole cranio-puncture apparatus or lesion removal via open craniotomy.They underwent lumbar puncture and normal saline was pressed injected via a lumbar puncture needle.The patient data were retrospectively analyzed.Results Eleven of 43 patients had spontaneous respiration and fully recovered (25.6% ),16 patients regained respiration but died eventually (37.2% ) and 16 patients failed to regain respiration ( 37.2% ).The effective rate was 62.8%.Conclusion For the patients failing to regain respiration after external ventricular drainage or supratentorial lesion removal via open craniotomy,the conservative treatment should not be the first choice.The pressed injection of normal saline via lumbar puncture may rescue some patients.%目的 总结应用快速细孔钻颅脑室体外引流术或开颅病变清除减压术后,进行腰穿加压注液抢救枕骨大孔疝所致呼吸骤停患者的经验.方法 自1969至2005年山东大学齐鲁医院及山东大学第二医院共同采用腰穿加压注液方法,救治43例急性枕骨大孔疝患者,43例均为进行快速细孔钻颅脑室外引流或幕上病变开颅清除减压术后,自主呼吸仍不恢复者.结果 43例中11例(25.6%)不仅恢复自主呼吸且完全康复,16例(37.2%)出现不同时间的自主呼吸但最终死亡,无自主呼吸恢复迹象者16例(37.2%).结论 因急性枕骨大孔疝致呼吸停止,应用快速细孔钻颅脑室引流,或幕上病变开颅清除减压术后,自主呼吸仍无恢复的患者,给予腰穿加压注液有可能使部分患者获救.

  9. 腹腔注射氢气与腹腔氢水对大鼠氢气代谢的影响%Effects of Intraperitoneal Injection with Saturated Hydrogen Saline or Hydrogen Gas on Hydrogen Metabolism in Rats

    Institute of Scientific and Technical Information of China (English)

    林涛; 黄国庆; 文明祥; 廖晓星

    2012-01-01

    目的 比较腹腔注射氢气与氢水对鼠氢气代谢的影响.方法 20只SD大鼠,在监测呼气氢气基础值后,均先后腹腔注射氢气及饱和氢气生理盐水1 ml/100 g及2 ml/100 g.记录不同给氢方式呼气氢气浓度的达峰时间、峰浓度,计算半衰期和曲线下面积,比较不同给氢方式对呼气氢气浓度的影响.结果 腹腔注射1 ml/100 g氢水、氢气、达峰时间(Tmax)分别为(3.48±1.54)min、(15.85±7.24)min,注射2 ml/100 g氢水、氢气分别为(5.48±1.88)min、(21.25±11.65)min;1 ml/100 g氢水、氢气峰浓度(Cmax)分别为(35.04±12.43)ppm、(44.43±16.13)ppm,2 ml/100 g氢水、氢气分别为(49.45±18.89)ppm、(62.82±23.74)ppm,同剂量不同方式比较及同方式不同剂量比较,差异有统计学意义(P<0.01);单倍剂量氢水、氢气半衰期(T1/2)分别为(8.37±3.22)min、(125.08±73.68)min,双倍剂量氢水、氢气分别为(11.21±4.84)min、(168.46±85.77)min;1 ml/100 g氢水、氢气较基础值增加的曲线下面积(AUC)分别为(279.43±161.67)ppm/min、(4 249.87±1 689.74) ppm/min,2 ml/100 g氢水、氢气分别为(384.03±172.25)ppm/min、(6 834.04±2471.67)ppm/min.可见同剂量不同方式比较及同方式不同剂量比较差异有统计学意义(P<0.01).结论 腹腔注射氢水、氢气均可迅速提高呼气氢气浓度,存在量效关系.腹腔注射氢气能长时间维持呼气氢气高浓度.%Objective To compare; thc; e;ffe;cts of intrapcritoncat injection vvith saturated hydrogen satine; or hydrogen gas on hydrogen metabotism in rats. Methods Tvvcnty SD rats were; te;ste;d the; basis concentration of e;xhate;d hydrogen. Then att of them were; successivety supptied intraperitoneat saturated hydrogen satine; or hydrogen gas of 1 mt/KX) g and 2 mt/KX) g. To record the; peak time; of e;xhate;d hydrogen concentration( Tmax ) of different hydrogen-supptied ways, the; max e;xhate;d hydrogen concentration( Cmax ),and to catcutate hatf-tife;( T1/2 ) and area under

  10. Repeat-until-success quantum repeaters

    Science.gov (United States)

    Bruschi, David Edward; Barlow, Thomas M.; Razavi, Mohsen; Beige, Almut

    2014-09-01

    We propose a repeat-until-success protocol to improve the performance of probabilistic quantum repeaters. Conventionally, these rely on passive static linear-optics elements and photodetectors to perform Bell-state measurements (BSMs) with a maximum success rate of 50%. This is a strong impediment for entanglement swapping between distant quantum memories. Every time a BSM fails, entanglement needs to be redistributed between the corresponding memories in the repeater link. The key ingredients of our scheme are repeatable BSMs. Under ideal conditions, these turn probabilistic quantum repeaters into deterministic ones. Under realistic conditions, our protocol too might fail. However, using additional threshold detectors now allows us to improve the entanglement generation rate by almost orders of magnitude, at a nominal distance of 1000 km, compared to schemes that rely on conventional BSMs. This improvement is sufficient to make the performance of our scheme comparable to the expected performance of some deterministic quantum repeaters.

  11. Subcutaneous Injections

    DEFF Research Database (Denmark)

    Thomsen, Maria

    This thesis is about visualization and characterization of the tissue-device interaction during subcutaneous injection. The tissue pressure build-up during subcutaneous injections was measured in humans. The insulin pen FlexTouchr (Novo Nordisk A/S) was used for the measurements and the pressure...... build-up was evaluated indirectly from the changes in the flow rate between subcutaneous injections and air injections. This method enabled the tissue counter pressure to be evaluated without a formal clinical study approval. The measurements were coupled to a model for the pressure evolution...

  12. 亚甲蓝盐水定位气胸与支气管瘘相关支气管的临床研究%Clinical investigation of detecting the bronchi responsible for pulmonary air leakage by injecting methylene blue saline in 27 cases with intractable pneumothorax and bronchial fistula

    Institute of Scientific and Technical Information of China (English)

    金普乐; 葛晖; 彭乱顺; 王国军; 胡文霞; 宋姗

    2014-01-01

    目的 探讨经气道有色盐水定位气胸与支气管瘘相关支气管的方法,并评价其效果及安全性.方法 2006年1月至2013年10月,河北医科大学第四医院收治顽固性气胸19例和支气管瘘8例.其中张力性气胸15例、交通性气胸12例.全部患者住院后经胸腔持续负压吸引术≥5d无效,自愿接受本方法治疗.建立胸腔负压吸引,使患者平静呼吸时有持续气体从引流管溢出.经气道插入支气管镜,沿支气管镜工作道送入注射导管,将适量亚甲蓝盐水缓缓注射到可疑段或亚段支气管,当观察到气道内有色盐水不断减少、消失或和胸腔引流管内出现有色盐水提示肺漏气相关支气管.封堵肺漏气相关支气管前,应停止或降低胸腔负压吸引水平,经支气管镜工作道插入注射导管,应用生物蛋白胶或OB胶封堵肺漏气相关支气管.当胸腔引流管气体消失,X线胸片肺复张,观察1周无复发为肺漏气相关支气管封堵成功.结果 27例患者肺漏气相关支气管均定位成功.段支气管定位16例、亚段10例、次亚段1例,其中累及相邻多段3例,多亚段5例.肺漏气相关支气管定位时间平均(51±9)s,其中张力性气胸平均(48±15)s,交通性气胸平均(53±16)s,2种类型气胸平均定位时间比较差异无统计学意义(t =0.416,P=0.699).相关段支气管有色盐水定位用量平均(42 ±23) ml.定位操作共实施相关支气管封堵61例次,胸腔引流管气流立即终止17例次,缓慢停止10例次,气流减缓持续22例次,气流无变化12例次.剧烈咳嗽4例,发热、胸腔出血各3例,胸痛、肺不张和肺炎各2例.结论 经导管气道内有色盐水注射,是一种操作简单、价格低廉、安全和有效的气胸与支气管瘘相关支气管定位新方法.%Objective To establish a new method for detecting the bronchus responsible for pulmonary air leakage by injecting methylene blue saline and to evaluate its efficacy and safety

  13. Repeated cocaine enhances ventral hippocampal-stimulated dopamine efflux in the nucleus accumbens and alters ventral hippocampal NMDA receptor subunit expression.

    Science.gov (United States)

    Barr, Jeffrey L; Forster, Gina L; Unterwald, Ellen M

    2014-08-01

    Dopaminergic neurotransmission in the nucleus accumbens is important for various reward-related cognitive processes including reinforcement learning. Repeated cocaine enhances hippocampal synaptic plasticity, and phasic elevations of accumbal dopamine evoked by unconditioned stimuli are dependent on impulse flow from the ventral hippocampus. Therefore, sensitized hippocampal activity may be one mechanism by which drugs of abuse enhance limbic dopaminergic activity. In this study, in vivo microdialysis in freely moving adult male Sprague-Dawley rats was used to investigate the effect of repeated cocaine on ventral hippocampus-mediated dopaminergic transmission within the medial shell of the nucleus accumbens. Following seven daily injections of saline or cocaine (20 mg/kg, ip), unilateral infusion of N-methyl-d-aspartate (NMDA, 0.5 μg) into the ventral hippocampus transiently increased both motoric activity and ipsilateral dopamine efflux in the medial shell of the nucleus accumbens, and this effect was greater in rats that received repeated cocaine compared to controls that received repeated saline. In addition, repeated cocaine altered NMDA receptor subunit expression in the ventral hippocampus, reducing the NR2A : NR2B subunit ratio. Together, these results suggest that repeated exposure to cocaine produces maladaptive ventral hippocampal-nucleus accumbens communication, in part through changes in glutamate receptor composition. A behaviorally sensitizing regimen of cocaine (20 mg/kg, ip 7 days) also sensitized ventral hippocampus (hipp)-mediated dopaminergic transmission within the nucleus accumbens (Nac) to NMDA stimulation (bolts). This was associated with reduced ventral hippocampal NR2A:NR2B subunit ratio, suggesting that repeated exposure to cocaine produces changes in hippocampal NMDA receptor composition that lead to enhanced ventral hippocampus-nucleus accumbens communication.

  14. Injection MD

    CERN Document Server

    Bartmann, W; Bracco, C; Drosdal, L; Gianfelice, E; Goddard, B; Kain, V; Papaphilippou, Y; Vanbavinckhove, G

    2012-01-01

    This note summarizes the results obtained at injection during the 2nd MD block and the floating MD block in July. Highlights are presented for injection in the LHC with the Q20 SPS optics, influence of the supercycle and injection with 25 ns bunch spacing. Beams were successfully injected into the LHC using the Q20 optics [1, 3]. Small corrections were needed to steer the beam in the transfer lines. Dispersion measurements were conducted for both beams. The horizontal normalized dispersion in TI2 was a factor 2 smaller for Q20 with respect to Q26, for TI8 on the other hand the opposite was observed. The results for injection loss dependency on super cycle composition show only a small increase in losses for beam 2. The losses observed must therefore mainly come from other sources such as shot-by-shot stability or quality of scraping. For the injection with 25 ns bunch spacing bunches were injected for both beams. For B1 up to the maximum of 288 bunches. For B2 on the other only up to 144 bunches were injected...

  15. Breast Implants: Saline vs. Silicone

    Science.gov (United States)

    ... differ in material and consistency, however. Saline breast implants Saline implants are filled with sterile salt water. ... of any age for breast reconstruction. Silicone breast implants Silicone implants are pre-filled with silicone gel — ...

  16. Subcutaneous Injections

    DEFF Research Database (Denmark)

    Thomsen, Maria

    This thesis is about visualization and characterization of the tissue-device interaction during subcutaneous injection. The tissue pressure build-up during subcutaneous injections was measured in humans. The insulin pen FlexTouchr (Novo Nordisk A/S) was used for the measurements and the pressure...... build-up was evaluated indirectly from the changes in the flow rate between subcutaneous injections and air injections. This method enabled the tissue counter pressure to be evaluated without a formal clinical study approval. The measurements were coupled to a model for the pressure evolution...... in subcutaneous tissue, based on mass conservation and flow in a porous medium. From the measurements the flow permeability and bulk modulus of the tissue were determined. In the adipose tissue the drug forms a bolus from where it is absorbed by the blood capillaries. The spatial distribution of the injected...

  17. Pharmacokinetics of zinc tannate after intratesticular injection.

    Science.gov (United States)

    Migally, N B; Fahim, M S

    1984-01-01

    Forty-eight sexually mature male rats were injected intratesticularly with either 1, 3, or 6 mg zinc tannate (Kastrin) or with saline (as control). Zinc localized only in low concentration in primary spermatocytes and could not be detected in spermatogonia, Sertoli cells, spermatids, or spermatozoa. Forty-eight hours after injection of 1 mg Kastrin, zinc was accumulated in the spermatogonia and primary spermatocytes while, after injection of 3 mg, zinc was preferentially localized in Sertoli cells and spermatids; however, zinc was observed in the spermatids and spermatozoa 48 h after injection with 6 mg, and germ cells lost their identity and were fragmented after 1 week.

  18. Experimental pain in human temporal muscle induced by hypertonic saline, potassium and acidity

    DEFF Research Database (Denmark)

    Jensen, K; Norup, M

    1992-01-01

    chloride (n = 12) induced significantly more pain than isotonic saline (ANOVA, p less than 0.0001). Compared to control injections, hypertonic saline and potassium chloride induced a significant reduction in pressure-pain threshold (ANOVA, p less than 0.0001 and p less than 0.05). Forty-eight percent...

  19. Injectable Drug Eluting Elastomeric Polymer: A Novel Submucosal Injection Material

    Science.gov (United States)

    Tran, Richard T.; Palmer, Michael; Tang, Shou-Jiang; Abell, Thomas L.; Yang, Jian

    2011-01-01

    Background Biodegradable hydrogels can deliver therapeutic payloads with great potentials in endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) to yield improvements in efficacy and foster mucosal regeneration. Objective To assess the efficacy of an injectable drug eluting elastomeric polymer (iDEEP) as a submucosal injection material. Design Comparative study among 3 different solutions using material characterization tests, ex vivo and in vivo porcine models. Setting Academic hospital. Interventions 30 gastric submucosal cushions were achieved with saline (0.9%), sodium hyaluronate (0.4%), and iDEEP (n = 10) in ex vivo porcine stomachs. Four porcine gastric submucosal cushions were then performed in vivo using iDEEP. Main outcome measurements Maximum injection pressure, Rebamipide release rate, submucosal elevation duration, and assessment of in vivo efficacy by en bloc resection. Results No significant difference in injection pressures between iDEEP (28.9 ± 0.3 PSI) and sodium hyaluronate (29.5 ± 0.4 PSI, P > .05) was observed. iDEEP gels displayed a controlled release of Rebamipide up to 2 weeks in vitro. The elevation height of iDEEP (5.7 ± 0.5 mm) was higher than saline (2.8 ± 0.2 mm, P < .01) and SH (4.2 ± 0.2 mm, P < .05). All EMR procedures were successfully performed after injection of iDEEP, and a large gel cushion was noted after the resection procedure. Limitations Benchtop, ex vivo, and non-survival pig study. Conclusions A novel injection solution was evaluated for endoscopic resection. These results suggest that iDEEP may provide a significant step towards the realization of an ideal EMR and ESD injection material. PMID:22301346

  20. Mepolizumab Injection

    Science.gov (United States)

    ... or do not go away: pain, redness, swelling, warmth, burning, or itching in the place mepolizumab was injected headache dry and itchy skin with or without red, scaly rashes back pain muscle spasms Some side ...

  1. Metoclopramide Injection

    Science.gov (United States)

    ... and feeling of fullness that lasts long after meals. Metoclopramide injection is also used to prevent nausea ... tranylcypromine (Parnate); narcotic medications for pain; sedatives; sleeping pills; tetracycline (Bristacycline, Sumycin); tranquilizers. Your doctor may need ...

  2. Ramucirumab Injection

    Science.gov (United States)

    ... dose of ramucirumab injection. Tell your doctor or nurse if you experience any of the following while you receive ramucirumab: uncontrollable shaking of a part of the body; back pain or spasms; chest pain and tightness; chills; flushing; ...

  3. Alemtuzumab Injection

    Science.gov (United States)

    Alemtuzumab injection is used to treat B-cell chronic lymphocytic leukemia (a slowly developing cancer in which ... of white blood cell accumulate in the body). Alemtuzumab is in a class of medications called monoclonal ...

  4. Ferumoxytol Injection

    Science.gov (United States)

    Ferumoxytol injection is used to treat iron-deficiency anemia (a lower than normal number of red blood ... pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or ...

  5. Fludarabine Injection

    Science.gov (United States)

    Fludarabine injection is used to treat chronic lymphocytic leukemia (CLL; a type of cancer of the white ... a reliable method of birth control to prevent pregnancy during this time. Talk to your doctor for ...

  6. Insulin Injection

    Science.gov (United States)

    ... or buttocks. Do not inject insulin into muscles, scars, or moles. Use a different site for each ... you are using insulin.Alcohol may cause a decrease in blood sugar. Ask your doctor about the ...

  7. Tigecycline Injection

    Science.gov (United States)

    ... in a person who was not in the hospital), skin infections, and infections of the abdomen (area between the ... that developed in people who were in a hospital or foot infections in people who have diabetes. Tigecycline injection is ...

  8. Golimumab Injection

    Science.gov (United States)

    Golimumab injection is used alone or with other medications to relieve the symptoms of certain autoimmune disorders ( ... did not help or could not be tolerated. Golimumab is in a class of medications called tumor ...

  9. Albiglutide Injection

    Science.gov (United States)

    ... will develop tumors of the thyroid gland, including medullary thyroid carcinoma (MTC; a type of thyroid cancer). ... symptoms or those listed in the IMPORTANT WARNING section, stop using albiglutide injection and call your doctor ...

  10. Dexamethasone Injection

    Science.gov (United States)

    ... body tissues,) gastrointestinal disease, and certain types of arthritis. Dexamethasone injection is also used for diagnostic testing. ... effects.tell your doctor if you have a fungal infection (other than on your skin or nails). ...

  11. Hydrocortisone Injection

    Science.gov (United States)

    ... own organs), gastrointestinal disease, and certain types of arthritis. Hydrocortisone injection is also used to treat certain ... effects.tell your doctor if you have a fungal infection (other than on your skin or nails). ...

  12. Methylprednisolone Injection

    Science.gov (United States)

    ... own organs), gastrointestinal disease, and certain types of arthritis. Methylprednisolone injection is also used to treat certain ... effects.tell your doctor if you have a fungal infection (other than on your skin or nails). ...

  13. Glatiramer Injection

    Science.gov (United States)

    ... To inject glatiramer, follow these steps: Remove one blister pack from the carton of glatiramer syringes and place ... paper label and remove the syringe from the blister pack. Check your prefilled syringe to be sure it ...

  14. Dexrazoxane Injection

    Science.gov (United States)

    ... that are used to treat or prevent certain side effects that may be caused by chemotherapy medications. Dexrazoxane injection (Zinecard) is used to prevent or decrease heart damage caused by doxorubicin in women who are ...

  15. Evolocumab Injection

    Science.gov (United States)

    ... autoinjector in hot water, microwave, or place in sunlight.Before you use evolocumab injection, look at the ... chills pain or burning during urination muscle or back pain dizziness stomach pain Some side effects can be ...

  16. Cidofovir Injection

    Science.gov (United States)

    Cidofovir injection is used along with another medication (probenecid) to treat cytomegaloviral retinitis (CMV retinitis) in people with acquired immunodeficiency syndrome (AIDS). Cidofovir is in a class of medications called antivirals. ...

  17. Brivaracetam Injection

    Science.gov (United States)

    ... older. Brivaracetam in a class of medications called anticonvulsants. It works by decreasing abnormal electrical activity in ... older (about 1 in 500 people) who took anticonvulsants like brivaracetam injection to treat various conditions during ...

  18. Diphenhydramine Injection

    Science.gov (United States)

    ... not to use diphenhydramine injection if you are breastfeeding because of the risk of harm to infants.tell your doctor if you have or have ever had asthma or other types of lung disease; glaucoma (a ...

  19. Cefazolin Injection

    Science.gov (United States)

    ... valve, respiratory tract (including pneumonia), biliary tract, and urinary tract infections. Cefazolin injection also may be used before, during, ... to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( ...

  20. Ceftazidime Injection

    Science.gov (United States)

    ... skin, blood, bone, joint, female genital tract, and urinary tract infections. Ceftazidime injection is in a class of medications ... to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( ...

  1. Fluconazole Injection

    Science.gov (United States)

    ... and fungal infections of the eye, prostate (a male reproductive organ), skin and nails. Fluconazole injection is ... Motrin, others) and naproxen (Aleve, Anaprox, Naprelan); oral contraceptives (birth control pills); oral medication for diabetes such ...

  2. Moxifloxacin Injection

    Science.gov (United States)

    ... available.Moxifloxacin injection is in a class of antibiotics called fluoroquinolones. It works by killing the bacteria that cause ... you are allergic to moxifloxacin, other quinolone or fluoroquinolone antibiotics such as ciprofloxacin (Cipro), gatifloxacin (Tequin) (not available ...

  3. Levofloxacin Injection

    Science.gov (United States)

    ... available. Levofloxacin injection is in a class of antibiotics called fluoroquinolones. It works by killing bacteria that cause infections. ... severe reaction to levofloxacin; any other quinolone or fluoroquinolone antibiotic such as ciprofloxacin (Cipro), gatifloxacin (Tequin) (not available ...

  4. Ciprofloxacin Injection

    Science.gov (United States)

    ... available. Ciprofloxacin injection is in a class of antibiotics called fluoroquinolones. It works by killing bacteria that cause infections. ... reaction to ciprofloxacin or any other quinolone or fluoroquinolone antibiotic such as gatifloxacin (Tequin) (not available in the ...

  5. Alirocumab Injection

    Science.gov (United States)

    ... further decrease the amount of low-density lipoprotein (LDL) cholesterol ('bad cholesterol') in the blood. Alirocumab injection is ... antibodies. It works by blocking the production of LDL cholesterol in the body to decrease the amount of ...

  6. Chloramphenicol Injection

    Science.gov (United States)

    ... an arm or leg sudden changes in vision pain with eye movement Chloramphenicol injection may cause a condition called gray syndrome in premature and newborn infants. There have also been reports of gray ...

  7. 深部咸含水层C02注入的流体迁移模拟研究——以松辽盆地三肇凹陷为例%Fluid migration modeling of CO2 injection in deep saline aquifers-A case study of the Sanzhao Depression, Songliao Basin

    Institute of Scientific and Technical Information of China (English)

    赵锐锐; 孟庆辉; 成建梅

    2012-01-01

    CO2 geological storage is one of effective measures for reducing emissions of greenhouse gases, and now CO2 disposal in deep saline aquifers becomes a feasible and most promising technology for CO2 storage. The previous studies show that the Songliao Basin is one of potential and promising storage sites. Based on the preliminary study of geological formation of the Songliao Basin, the first member of the Yaojia formation, the second and third members of the Qingshankou formation in the Sanzhao Depression are selected as the suitable aquifers for CO2 injection. Then a generalized two-dimensional modelis set up to characterize the injection of CO2 into the Yaojia and Qingshankou formation, and to investigate the migration of CO2 in the aquifers. The results of model show that CO2 would migrate upwards and spread laterally over time after injection; and the phenomenon of convective mixing could occur obviously later, which could enhance the dissolution of CO2 process. The residual gas saturation and the ratio of horizontal to vertical permeability have the greatest effects on the results of model. Besides, the interbedded shale layers in the reservoir can enhance the dissolution of CO2. It's suggested that the reservoirs with low-permeability intercalation could be allowed when the injectivity and storage capacity are guaranteed.%CO2地质封存是减少温室气体向大气排放的有效措施之一,而深部咸含水层CO2地质封存是目前可行的最有潜力的封存技术.先前研究表明,松辽盆地是一个潜在的封存场地.基于对松辽盆地地质资料的初步分析,选取三肇凹陷的姚家组1段和青山口组2、3段地层作为CO2的注入层,建立一个典型二维模型,研究CO2注入后的迁移规律.结果表明,CO2注入后会向上和侧向迁移,后期可能出现的对流作用能促进CO2的溶解.残留气体饱和度、注入层水平和垂直渗透率的比值对模拟结果影响最大.此外,储层中

  8. Alfalfa production using saline drainage water

    Science.gov (United States)

    A three year study investigated the use of saline (alfalfa in the presence of shallow saline groundwater. The irrigation treatments included; irrigating twice between cuttings with non-saline water, 2) irrigating with moderately saline water...

  9. An Innovative Needle-free Injection System: Comparison to 1 ml Standard Subcutaneous Injection.

    Science.gov (United States)

    Kojic, Nikola; Goyal, Pragun; Lou, Cheryl Hamer; Corwin, Michael J

    2017-05-01

    A needle-free delivery system may lead to improved satisfaction and compliance, as well as reduced anxiety among patients requiring frequent or ongoing injections. This report describes a first-in-man assessment comparing Portal Instruments' innovative needle-free injection system with subcutaneous injections using a 27G needle. Forty healthy volunteer participants each received a total of four injections of 1.0 mL sterile saline solution, two with a standard subcutaneous injection using a 27G needle, and two using the Portal injection system. Perception of pain was measured using a 100-mm visual analog scale (VAS). Injection site reactions were assessed at 2 min and at 20-30 min after each injection. Follow-up contact was made 24-48 h after the injections. Subject preference regarding injection type was also assessed. VAS pain scores at Portal injection sites met the criteria to be considered non-inferior to the pain reported at 27G needle injection sites (i.e., upper 95% confidence bound less than +5 mm). Based on a mixed effects model, at time 0, accounting for potential confounding variables, the adjusted difference in VAS scores indicated that Portal injections were 6.5 mm lower than the 27G needle injections (95% CI -10.5, -2.5). No clinically important adverse events were noted. Portal injections were preferred by 24 (60%) of the subjects (P = 0.0015). As an early step in the development of this new needle-free delivery system, the current study has shown that a 1.0-mL saline injection can be given with less pain reported than a standard subcutaneous injection using a 27G needle.

  10. Effects of salinity on leaf breakdown: Dryland salinity versus salinity from a coalmine.

    Science.gov (United States)

    Sauer, Felix G; Bundschuh, Mirco; Zubrod, Jochen P; Schäfer, Ralf B; Thompson, Kristie; Kefford, Ben J

    2016-08-01

    Salinization of freshwater ecosystems as a result of human activities represents a global threat for ecosystems' integrity. Whether different sources of salinity with their differing ionic compositions lead to variable effects in ecosystem functioning is unknown. Therefore, the present study assessed the impact of dryland- (50μS/cm to 11,000μS/cm) and coalmine-induced (100μS/cm to 2400μS/cm) salinization on the leaf litter breakdown, with focus on microorganisms as main decomposer, in two catchments in New South Wales, Australia. The breakdown of Eucalyptus camaldulensis leaves decreased with increasing salinity by up to a factor of three. Coalmine salinity, which is characterised by a higher share of bicarbonates, had a slightly but consistently higher breakdown rate at a given salinity relative to dryland salinity, which is characterised by ionic proportions similar to sea water. Complementary laboratory experiments supported the stimulatory impact of sodium bicarbonates on leaf breakdown when compared to sodium chloride or artificial sea salt. Furthermore, microbial inoculum from a high salinity site (11,000μS/cm) yielded lower leaf breakdown at lower salinity relative to inoculum from a low salinity site (50μS/cm). Conversely, inoculum from the high salinity site was less sensitive towards increasing salinity levels relative to inoculum from the low salinity site. The effects of the different inoculum were the same regardless of salt source (sodium bicarbonate, sodium chloride and artificial sea salt). Finally, the microorganism-mediated leaf litter breakdown was most efficient at intermediate salinity levels (≈500μS/cm). The present study thus points to severe implications of increasing salinity intensities on the ecosystem function of leaf litter breakdown, while the underlying processes need further scrutiny.

  11. Salinity driven oceanographic upwelling

    Science.gov (United States)

    Johnson, D.H.

    1984-08-30

    The salinity driven oceanographic upwelling is maintained in a mariculture device that includes a long main duct in the general shape of a cylinder having perforated cover plates at each end. The mariculture device is suspended vertically in the ocean such that one end of the main duct is in surface water and the other end in relatively deep water that is cold, nutrient rich and relatively fresh in comparison to the surface water which is relatively warm, relatively nutrient deficient and relatively saline. A plurality of elongated flow segregating tubes are disposed in the main duct and extend from the upper cover plate beyond the lower cover plate into a lower manifold plate. The lower manifold plate is spaced from the lower cover plate to define a deep water fluid flow path to the interior space of the main duct. Spacer tubes extend from the upper cover plate and communicate with the interior space of the main duct. The spacer tubes are received in an upper manifold plate spaced from the upper cover plate to define a surface water fluid flow path into the flow segregating tubes. A surface water-deep water counterflow is thus established with deep water flowing upwardly through the main duct interior for discharge beyond the upper manifold plate while surface water flows downwardly through the flow segregating tubes for discharge below the lower manifold plate. During such counterflow heat is transferred from the downflowing warm water to the upflowing cold water. The flow is maintained by the difference in density between the deep water and the surface water due to their differences in salinity. The upwelling of nutrient rich deep water is used for marifarming by fertilizing the nutrient deficient surface water. 1 fig.

  12. Quantum repeated games revisited

    CERN Document Server

    Frackiewicz, Piotr

    2011-01-01

    We present a scheme for playing quantum repeated 2x2 games based on the Marinatto and Weber's approach to quantum games. As a potential application, we study twice repeated Prisoner's Dilemma game. We show that results not available in classical game can be obtained when the game is played in the quantum way. Before we present our idea, we comment on the previous scheme of playing quantum repeated games.

  13. The use of saline W, a physiological salt solution for experimentation on insect immunity.

    Science.gov (United States)

    Jarosz, J

    1988-01-01

    In a series of induction experiments using various Ringer solutions attempts were made to determine whether saline W, a physiological salt solution for Lepidoptera, when injected into the larval haemocoel of the greater wax moth could be recognized by the insect as a non-self molecule. Laboratory bioassays indicated the loss of insect body integrity following intracoelomic injection of saline W and three other salines, increased levels of haemolymph lysozyme activity (EC 3. 2. 1. 17), and elevated resistance to the bacterial parasite, Pseudomonas aeruginosa. The inducing effect of saline W was stronger than dipterous Ringer's solution or other physiological salines. The stimulating effects indicate that the moth distinguishes between self and non-self, and this provides a new insight into the induction of the immune response.

  14. Sarilumab Injection

    Science.gov (United States)

    ... the needle. Do not try to warm the medication by heating it in a microwave, placing it in warm water or in direct sunlight, or through any other method.Before injecting, check the prefilled syringe to be sure that the expiration date printed on the package has not passed. Look ...

  15. Enfuvirtide Injection

    Science.gov (United States)

    ... inject enfuvirtide into any skin that has a tattoo, scar, bruise, mole, a burn site, or has ... Enfuvirtide may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away: itching, swelling, pain, tingling, discomfort, ...

  16. Fluorouracil Injection

    Science.gov (United States)

    ... of a doctor who is experienced in giving chemotherapy medications for cancer. Treatment with fluorouracil injection may cause serious side effects. ... this medication.If you experience a serious side effect, you or your doctor ... (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/ ...

  17. Lanreotide Injection

    Science.gov (United States)

    Lanreotide injection is used to treat people with acromegaly (condition in which the body produces too much growth hormone, causing enlargement of the hands, feet, and facial features; joint pain; and other symptoms) who have not successfully, or cannot be treated ...

  18. Paliperidone Injection

    Science.gov (United States)

    ... the body slow movements or shuffling walk painful erection of the penis that lasts for hours cough, chills and/or other signs of infection Paliperidone injection may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.If you experience a ...

  19. Ziprasidone Injection

    Science.gov (United States)

    ... stiffness falling confusion sweating loss of consciousness painful erection of the penis that lasts for hours Ziprasidone injection may cause other side effects. Call your doctor if you have any unusual problems while receiving this medication.If you experience a ...

  20. Risperidone Injection

    Science.gov (United States)

    ... control slow movements or shuffling walk falling painful erection of the penis that lasts for hours Risperidone extended-release injection may cause other side effects. Call your doctor if you have any unusual problems while receiving this medication.If you experience a ...

  1. Saline agriculture in Mediterranean environments

    Directory of Open Access Journals (Sweden)

    Albino Maggio

    2011-03-01

    Full Text Available Salinization is increasingly affecting world's agricultural land causing serious yield loss and soil degradation. Understanding how we could improve crop productivity in salinized environments is therefore critical to meet the challenging goal of feeding 9.3 billion people by 2050. Our comprehension of fundamental physiological mechanisms in plant salt stress adaptation has greatly advanced over the last decades. However, many of these mechanisms have been linked to salt tolerance in simplified experimental systems whereas they have been rarely functionally proven in real agricultural contexts. In-depth analyses of specific crop-salinity interactions could reveal important aspects of plant salt stress adaptation as well as novel physiological/agronomic targets to improve salinity tolerance. These include the developmental role of root vs. shoot systems respect to water-ion homeostasis, morphological vs. metabolic contributions to stress adaptation, developmental processes vs. seasonal soil salinity evolution, residual effects of saline irrigation in non-irrigated crops, critical parameters of salt tolerance in soil-less systems and controlled environments, response to multiple stresses. Finally, beneficial effects of salinization on qualitative parameters such as stress-induced accumulation of high nutritional value secondary metabolites should be considered, also. In this short review we attempted to highlight the multifaceted nature of salinity in Mediterranean agricultural systems by summarizing most experimental activity carried out at the Department of Agricultural Engineering and Agronomy of University of Naples Federico II in the last few years.

  2. Subcutaneous (SQ) injections

    Science.gov (United States)

    SQ injections; Sub-Q injections; Diabetes subcutaneous injection; Insulin subcutaneous injection ... NIH. Giving a subcutaneous injection . Rockville, MD. National ... of Health and Human Services NIH publications; 2015. Available ...

  3. Reconfigurable multiport EPON repeater

    Science.gov (United States)

    Oishi, Masayuki; Inohara, Ryo; Agata, Akira; Horiuchi, Yukio

    2009-11-01

    An extended reach EPON repeater is one of the solutions to effectively expand FTTH service areas. In this paper, we propose a reconfigurable multi-port EPON repeater for effective accommodation of multiple ODNs with a single OLT line card. The proposed repeater, which has multi-ports in both OLT and ODN sides, consists of TRs, BTRs with the CDR function and a reconfigurable electrical matrix switch, can accommodate multiple ODNs to a single OLT line card by controlling the connection of the matrix switch. Although conventional EPON repeaters require full OLT line cards to accommodate subscribers from the initial installation stage, the proposed repeater can dramatically reduce the number of required line cards especially when the number of subscribers is less than a half of the maximum registerable users per OLT. Numerical calculation results show that the extended reach EPON system with the proposed EPON repeater can save 17.5% of the initial installation cost compared with a conventional repeater, and can be less expensive than conventional systems up to the maximum subscribers especially when the percentage of ODNs in lightly-populated areas is higher.

  4. Revisiting the TALE repeat.

    Science.gov (United States)

    Deng, Dong; Yan, Chuangye; Wu, Jianping; Pan, Xiaojing; Yan, Nieng

    2014-04-01

    Transcription activator-like (TAL) effectors specifically bind to double stranded (ds) DNA through a central domain of tandem repeats. Each TAL effector (TALE) repeat comprises 33-35 amino acids and recognizes one specific DNA base through a highly variable residue at a fixed position in the repeat. Structural studies have revealed the molecular basis of DNA recognition by TALE repeats. Examination of the overall structure reveals that the basic building block of TALE protein, namely a helical hairpin, is one-helix shifted from the previously defined TALE motif. Here we wish to suggest a structure-based re-demarcation of the TALE repeat which starts with the residues that bind to the DNA backbone phosphate and concludes with the base-recognition hyper-variable residue. This new numbering system is consistent with the α-solenoid superfamily to which TALE belongs, and reflects the structural integrity of TAL effectors. In addition, it confers integral number of TALE repeats that matches the number of bound DNA bases. We then present fifteen crystal structures of engineered dHax3 variants in complex with target DNA molecules, which elucidate the structural basis for the recognition of bases adenine (A) and guanine (G) by reported or uncharacterized TALE codes. Finally, we analyzed the sequence-structure correlation of the amino acid residues within a TALE repeat. The structural analyses reported here may advance the mechanistic understanding of TALE proteins and facilitate the design of TALEN with improved affinity and specificity.

  5. Wheel-running behavior is altered following withdrawal from repeated cocaine in adult rats.

    Science.gov (United States)

    Santucci, Anthony C; Hernandez, Lizandra; Caba, Julissa

    2008-04-01

    The residual effects on open-field habituation and self-generated wheel running following withdrawal from repeated cocaine (COC; 30 mg/kg for 7 days) were examined in adult male rats. Control subjects received equivolumetric injections of saline (SAL) and were either allowed to feed ad libitum or pair-fed matched (PF SAL) to COC subjects to control for the drug's potential anorexic effect. Following 10 days of withdrawal, all subjects were examined twice on each of the two assessment instruments. Results indicated that COC subjects over the two test sessions failed to increase their wheel-running rates and did not show the expected habituation in the open field. However, because both COC and PF SAL groups yielded similar effects in the open field, conclusions about cocaine's consequences on habituation could not be established independent of the drug's anorexic effect. These data provide evidence for the view that repeated cocaine impairs motivational processes responsible for engaging in self-generated naturally rewarding behaviors. Speculation concerning the neurobiobehavioral substrates for this effect is presented.

  6. Clinical research on treatment of normal saline flush combined with Intra-articular injection of Hyaluronic acid on knee osteoarthitis%生理盐水冲洗联合玻璃酸钠注射治疗膝骨性关节炎的临床研究

    Institute of Scientific and Technical Information of China (English)

    李兴

    2014-01-01

    目的:观察生理盐水冲洗联合玻璃酸钠关节内注射治疗膝骨性关节炎的临床疗效。方法将130例膝骨性关节炎患者随机分为3组,分别采用关节内生理盐水(N S)冲洗、玻璃酸钠(H A)关节内注射、生理盐水冲洗+玻璃酸钠注射(N S+H A)治疗,临床观察膝关节疼痛、肿胀和功能改善情况,并进行评分,三类评分累加为症状体征积分,以此评价疗效。结果各组患者治疗后即时症状体征积分均明显降低,并随时间延长,积分呈平缓下降,第8周治疗结束后,各组症状体征积分均较治疗前降低(t=10.020,P=0.003;t=22.110,P=0.001;t=56.190,P=0.000);3组间症状体征积分差异有统计学意义(F=8.784, P=0.001),组间两两比较,NS组积分高于HA组和NS+HA组(q=3.003,P=0.037;q=4.063,P=0.001),HA组积分高于NS+HA组(q=2.537,P=0.024)。结论膝关节内生理盐水冲洗后注射玻璃酸钠治疗骨性关节炎效果好、起效快、持续时间长,对快速改善患者症状和缩短疗程、节省治疗费有非常积极的意义。%Objective: To observe the clinical curative effect of normal saline flush combined with intra-articular injection of hyaluronicacid knee osteoarthritis.Methods:Randomly divide the patients to 3 groups and treat them with methods of NS, HA and -NS+HA differently and separately, then observe the extension of the situation of joint pain, swel ing and improvement of joint function of the knees, a scoring was also taken in the meantime. The accumulation of the above mentioned 3 scoring is referred to as symptomatical score, which is used to evaluate the effects of the afore-mentioned different 3 methods.Result: The on-spot scores of the 3 groups’patients after the treatments were al significantly lowered. Meanwhile, the scoring shows a gentle trend of decreasing with the elongation of the time of treatment.When the treatments ends in the 8th week

  7. Recursive quantum repeater networks

    CERN Document Server

    Van Meter, Rodney; Horsman, Clare

    2011-01-01

    Internet-scale quantum repeater networks will be heterogeneous in physical technology, repeater functionality, and management. The classical control necessary to use the network will therefore face similar issues as Internet data transmission. Many scalability and management problems that arose during the development of the Internet might have been solved in a more uniform fashion, improving flexibility and reducing redundant engineering effort. Quantum repeater network development is currently at the stage where we risk similar duplication when separate systems are combined. We propose a unifying framework that can be used with all existing repeater designs. We introduce the notion of a Quantum Recursive Network Architecture, developed from the emerging classical concept of 'recursive networks', extending recursive mechanisms from a focus on data forwarding to a more general distributed computing request framework. Recursion abstracts independent transit networks as single relay nodes, unifies software layer...

  8. NOAA Average Annual Salinity (3-Zone)

    Data.gov (United States)

    California Department of Resources — The 3-Zone Average Annual Salinity Digital Geography is a digital spatial framework developed using geographic information system (GIS) technology. These salinity...

  9. Stochastic Modeling of Soil Salinity

    CERN Document Server

    Suweis, S; Van der Zee, S E A T M; Daly, E; Maritan, A; Porporato, A; 10.1029/2010GL042495

    2012-01-01

    A minimalist stochastic model of primary soil salinity is proposed, in which the rate of soil salinization is determined by the balance between dry and wet salt deposition and the intermittent leaching events caused by rainfall events. The long term probability density functions of salt mass and concentration are found by reducing the coupled soil moisture and salt mass balance equation to a single stochastic differential equation driven by multiplicative Poisson noise. The novel analytical solutions provide insight on the interplay of the main soil, plant and climate parameters responsible for long-term soil salinization. In particular, they show the existence of two distinct regimes, one where the mean salt mass remains nearly constant (or decreases) with increasing rainfall frequency, and another where mean salt content increases markedly with increasing rainfall frequency. As a result, relatively small reductions of rainfall in drier climates may entail dramatic shifts in long-term soil salinization trend...

  10. NOAA NOS SOS, EXPERIMENTAL - Salinity

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA NOS SOS server is part of the IOOS DIF SOS Project. The stations in this dataset have salinity data. *These services are for testing and evaluation use...

  11. World Ocean Atlas 2005, Salinity

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — World Ocean Atlas 2005 (WOA05) is a set of objectively analyzed (1° grid) climatological fields of in situ temperature, salinity, dissolved oxygen, Apparent Oxygen...

  12. World Ocean Atlas 2005, Salinity

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — World Ocean Atlas 2005 (WOA05) is a set of objectively analyzed (1° grid) climatological fields of in situ temperature, salinity, dissolved oxygen, Apparent Oxygen...

  13. Umbilical venous administration of different dosages of saline on the length of the third stage of labor

    Directory of Open Access Journals (Sweden)

    K. Abedian Kasgary

    2006-01-01

    Full Text Available Background and purpose: Since bleeding due to prolongation of the third stage of labor is one of the most common causes of mortality in the developing countries, we decided to conduct a comparative study on the effects of normal saline injection into umbilical vein on the shortening of the third stage of labor.Materials and Methods: This study was an experimental scientific research in order to compare the effects of different dosages of intraumblical venous injection of normal saline on the third stage of labor in women who admitted to lmam hospital in Sari. A total of 120 matched pregnant women who had normal delivery without any complications were divided into three equal groups of 40 subjects in each. Twenty and 30 ml normal saline was administered to groups 1 and 2, and the third group was considered as control. In control group the third stage of labor was accomplished without any intervention.Results: This research showed that the injection of 20 or 30 ml normal saline intravenously into the umbilical cord shortened the duration of labor. Also the length of the third stage of labor with the injection of 30 ml normal saline was shorter than that in 20 ml normal saline group but this difference was not statistically significant.Conclusion: The results of our study suggest a clinically important beneficial effect of intraumblical normal saline injection in the treatment of retained placenta.

  14. Saline water pollution in groundwater: issues and its control

    Directory of Open Access Journals (Sweden)

    Setyawan Purnama

    2012-10-01

    Full Text Available Nowadays, saline water pollution has been gaining its importance as the major issue around the world, especially in the urban coastal area. Saline water pollution has major impact on human life and livelihood. It´s mainly a result from static fossil water and the dynamics of sea water intrusion.. The problem of saline water pollution caused by seawater intrusion has been increasing since the beginning of urban population. The problem of sea water intrusion in the urban coastal area must be anticipated as soon as possible especially in the urban areas developed in coastal zones,. This review article aims to; (i analyze the distribution of saline water pollution on urban coastal area in Indonesia and (ii analyze some methods in controlling saline water pollution, especially due to seawater intrusion in urban coastal area. The strength and weakness of each method have been compared, including (a applying different pumping patterns, (b artificial recharge, (c extraction barrier, (d injection barrier and (e subsurface barrier. The best method has been selected considering its possible development in coastal areas of developing countries. The review is based considering the location of Semarang coastal area, Indonesia. The results have shown that artificial recharge and extraction barrier are the most suitable methods to be applied in the area.

  15. Therapeutic effects of compound hypertonic saline on rats with sepsis

    Directory of Open Access Journals (Sweden)

    Fang Dong

    Full Text Available Sepsis is one of the major causes of death and is the biggest obstacle preventing improvement of the success rate in curing critical illnesses. Currently, isotonic solutions are used in fluid resuscitation technique. Several studies have shown that hypertonic saline applied in hemorrhagic shock can rapidly increase the plasma osmotic pressure, facilitate the rapid return of interstitial fluid into the blood vessels, and restore the effective circulating blood volume. Here, we established a rat model of sepsis by using the cecal ligation and puncture approach. We found that intravenous injection of hypertonic saline dextran (7.5% NaCl/6% dextran after cecal ligation and puncture can improve circulatory failure at the onset of sepsis. We found that the levels of tumor necrosis factor-α, interleukin-1β, interleukin-6 and intracellular adhesion molecule 1 levels in the lung tissue of cecal ligation and puncture rats treated with hypertonic saline dextran were significantly lower than the corresponding levels in the control group. We inferred that hypertonic saline dextran has a positive immunoregulatory effect and inhibits the overexpression of the inflammatory response in the treatment of sepsis. The percentage of neutrophils, lung myeloperoxidase activity, wet to dry weight ratio of lung tissues, histopathological changes in lung tissues, and indicators of arterial blood gas analysis was significantly better in the hypertonic saline dextran-treated group than in the other groups in this study. Hypertonic saline dextran-treated rats had significantly improved survival rates at 9 and 18 h compared to the control group. Our results suggest that hypertonic saline dextran plays a protective role in acute lung injury caused after cecal ligation and puncture. In conclusion, hypertonic/hyperoncotic solutions have beneficial therapeutic effects in the treatment of an animal model of sepsis.

  16. Mineral concentrations of plasma and liver after injection with a trace mineral complex differ among Angus and Simmental cattle.

    Science.gov (United States)

    Pogge, D J; Richter, E L; Drewnoski, M E; Hansen, S L

    2012-08-01

    To examine the effects of cattle breed on the clearance rate of an injectable mineral product, 10 Angus and 10 Simmental steers were blocked by breed and initial BW (332 ± 33 kg) and injected with either Multimin 90 (MM) or sterilized saline (CON) at a dose of 1 mL/45 kg BW. Multimin 90 contains 15 mg Cu/mL (as Cu disodium EDTA), 60 mg Zn/mL (as Zn disodium EDTA), 10 mg Mn/mL (as Mn disodium EDTA), and 5 mg Se/mL (as sodium selenite). Steers received a corn-silage-based diet, and inorganic sources of Cu, Zn, Mn, and Se were supplemented at NRC recommended amounts. Jugular blood was collected immediately before injection and at 8 and 10 h post-injection and on days 1, 8, and 15 post-injection. Liver biopsies were collected 3 d before injection and on days 1, 8, and 15 post-injection. Liver and plasma mineral concentration and glutathione peroxidase (GSH-Px) activity data were analyzed as repeated measures. Plasma concentrations of Zn, Mn, and Se were greater (P = 0.01) and Cu tended to be greater (P = 0.12) post-injection in MM steers compared with the CON steers. Regardless of treatment, Simmental cattle had lower plasma concentrations of Cu, Zn, and Se (P ≤ 0.05) when compared with Angus cattle. Erythrocyte GSH-Px activity was greater (P = 0.01) in MM steers compared with CON steers. Liver concentrations of Cu, Zn, and Se were greater (P = 0.05) in MM steers compared with CON steers post-injection. Liver Mn concentrations tended to be greater (P = 0.06) in MM steers compared with CON steers in the days post-injection. Interestingly, Simmental cattle exhibited greater (P = 0.01) liver Mn concentrations in the days after injection compared with Angus cattle (7.0 and 6.0 mg Mn/kg for Simmental and Angus cattle, respectively), regardless of treatment. It is unclear if this breed difference is biologically relevant; however, these data may suggest that differences in liver excretion of Mn exist between the two breeds. Overall, use of an injectable trace mineral

  17. The Pentapeptide Repeat Proteins

    Energy Technology Data Exchange (ETDEWEB)

    Vetting,M.; Hegde, S.; Fajardo, J.; Fiser, A.; Roderick, S.; Takiff, H.; Blanchard, J.

    2006-01-01

    The Pentapeptide Repeat Protein (PRP) family has over 500 members in the prokaryotic and eukaryotic kingdoms. These proteins are composed of, or contain domains composed of, tandemly repeated amino acid sequences with a consensus sequence of [S, T,A, V][D, N][L, F]-[S, T,R][G]. The biochemical function of the vast majority of PRP family members is unknown. The three-dimensional structure of the first member of the PRP family was determined for the fluoroquinolone resistance protein (MfpA) from Mycobacterium tuberculosis. The structure revealed that the pentapeptide repeats encode the folding of a novel right-handed quadrilateral {beta}-helix. MfpA binds to DNA gyrase and inhibits its activity. The rod-shaped, dimeric protein exhibits remarkable size, shape and electrostatic similarity to DNA.

  18. Repeating the Past

    Science.gov (United States)

    Moore, John W.

    1998-05-01

    As part of the celebration of the Journal 's 75th year, we are scanning each Journal issue from 25, 50, and 74 years ago. Many of the ideas and practices described are so similar to present-day "innovations" that George Santayana's adage (1) "Those who cannot remember the past are condemned to repeat it" comes to mind. But perhaps "condemned" is too strong - sometimes it may be valuable to repeat something that was done long ago. One example comes from the earliest days of the Division of Chemical Education and of the Journal.

  19. Accumbal FosB/DeltaFosB immunoreactivity and conditioned place preference in alcohol-preferring AA rats and alcohol-avoiding ANA rats treated repeatedly with cocaine.

    Science.gov (United States)

    Marttila, Kristiina; Petteri Piepponen, T; Kiianmaa, Kalervo; Ahtee, Liisa

    2007-07-30

    Transcription factor DeltaFosB has been implicated in the psychomotor responses and rewarding effects of drugs of abuse. In the present study, we compared the effects of cocaine on the expression of DeltaFosB-like proteins by immunohistochemistry in striatal brain areas of alcohol-preferring (AA) and alcohol-avoiding (ANA) rats. Cocaine was administered using a previously verified treatment paradigm that sensitized the locomotor response to cocaine in AA but not in ANA rats. We also studied the rewarding effects of cocaine with a conditioned place preference (CPP) paradigm in both lines of rats. Cocaine treatment increased the FosB/DeltaFosB immunoreactivity (IR) in the nucleus accumbens of AA rats but not in ANA rats. In addition, after repeated saline injections the accumbal FosB/DeltaFosB IR was significantly greater in saline-injected AA rats than in ANA rats. In the caudate-putamen cocaine significantly increased FosB/DeltaFosB IR, but no differences were found between the rats of two lines. In the CPP experiment, AA rats treated with cocaine 2.5 mg/kg preferred the cocaine-associated compartment, in contrast to ANA rats, which did not show such a preference. In conclusion, our findings show that AA rats are more sensitive to cocaine than ANA rats, and suggest that one possible mediator for this increased sensitivity could be the increased expression of fosB-derived proteins in the nucleus accumbens of AA rats.

  20. Mapping the Salinity Gradient in a Microfluidic Device with Schlieren Imaging

    Directory of Open Access Journals (Sweden)

    Chen-li Sun

    2015-05-01

    Full Text Available This work presents the use of the schlieren imaging to quantify the salinity gradients in a microfluidic device. By partially blocking the back focal plane of the objective lens, the schlieren microscope produces an image with patterns that correspond to spatial derivative of refractive index in the specimen. Since salinity variation leads to change in refractive index, the fluid mixing of an aqueous salt solution of a known concentration and water in a T-microchannel is used to establish the relation between salinity gradients and grayscale readouts. This relation is then employed to map the salinity gradients in the target microfluidic device from the grayscale readouts of the corresponding micro-schlieren image. For saline solution with salinity close to that of the seawater, the grayscale readouts vary linearly with the salinity gradient, and the regression line is independent of the flow condition and the salinity of the injected solution. It is shown that the schlieren technique is well suited to quantify the salinity gradients in microfluidic devices, for it provides a spatially resolved, non-invasive, full-field measurement.

  1. 40 CFR 230.25 - Salinity gradients.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Salinity gradients. 230.25 Section 230... Physical and Chemical Characteristics of the Aquatic Ecosystem § 230.25 Salinity gradients. (a) Salinity... fresh or salt water may change existing salinity gradients. For example, partial blocking of...

  2. All-optical repeater.

    Science.gov (United States)

    Silberberg, Y

    1986-06-01

    An all-optical device containing saturable gain, saturable loss, and unsaturable loss is shown to transform weak, distorted optical pulses into uniform standard-shape pulses. The proposed device performs thresholding, amplification, and pulse shaping as required from an optical repeater. It is shown that such a device could be realized by existing semiconductor technology.

  3. Bidirectional Manchester repeater

    Science.gov (United States)

    Ferguson, J.

    1980-01-01

    Bidirectional Manchester repeater is inserted at periodic intervals along single bidirectional twisted pair transmission line to detect, amplify, and transmit bidirectional Manchester 11 code signals. Requiring only 18 TTL 7400 series IC's, some line receivers and drivers, and handful of passive components, circuit is simple and relatively inexpensive to build.

  4. Subchronic anesthetic ketamine injections in rats impair choice reversal learning, but have no effect on reinforcer devaluation.

    Science.gov (United States)

    Pickens, Charles L; Aurand, Lexia; Hunt, Joshua; Fisher, Hayley

    2017-01-21

    Previous exposure to a variety of drugs of abuse has been shown to cause long-term impairments in reversal learning and reinforcer devaluation tasks. However, there is mixed evidence in the literature for a long-term effect of ketamine exposure on reversal learning and the long-term effect of ketamine exposure on devaluation is not known. We determined whether repeated injections of an anesthetic dose of ketamine would lead to impairments in choice reversal learning after discrimination learning or impairments in reinforcer devaluation. In two experiments, rats received three injections once-daily of ketamine (100 mg/kg, intraperitoneally) or saline and then began behavioral training 19 days later so that the key reversal learning and devaluation tests would occur about 1 month after the final ketamine injection. This ketamine exposure regimen did not impair learning in our discrimination task, but led to an increase in perseverative errors in reversal learning. However, the same ketamine exposure regimen (or injections of a lower 50 mg/kg dose) had no effect on behavior in the devaluation task. The behavioral patterns observed suggest possible neural mechanisms for the effects of ketamine, but future neurobiological investigations will be needed to isolate these mechanisms.

  5. ACOG technology assessment in obstetrics and gynecology. Number 3, September 2003. Saline infusion sonohysterography.

    Science.gov (United States)

    Breitkopf, Daniel; Goldstein, Steven R; Seeds, John W

    2003-09-01

    Saline infusion sonohysterography consists of ultrasonographic imaging of the uterus and uterocervical cavity, using real-time ultrasonography during injection of sterile saline into the uterus. When properly performed, saline infusion sonohysterography can provide information about the uterus and endometrium. The most common indication for sonohysterography is abnormal uterine bleeding. Sonohysterography should not be performed in a woman who is pregnant or who could be pregnant or in a woman with a pelvic infection or unexplained pelvic tenderness. Physicians who perform or supervise diagnostic saline infusion sonohysterography should have training, experience, and demonstrated competence in gynecologic ultrasonography and saline infusion sonohysterography. Portions of this document were developed jointly with the American College of Radiology and the American Institute of Ultrasound in Medicine.

  6. The Aquarius Salinity Retrieval Algorithm: Early Results

    Science.gov (United States)

    Meissner, Thomas; Wentz, Frank J.; Lagerloef, Gary; LeVine, David

    2012-01-01

    (cal/val) activity needs to be completed. This is necessary in order to tune the inputs to the algorithm and remove biases that arise due to the instrument calibration, foremost the values of the noise diode injection temperatures and the losses that occur in the feedhorns. This is the subject of the second part of our presentation. The basic tool is to analyze the observed difference between the Aquarius measured TA and an expected TA that is computed from a reference salinity field. It is also necessary to derive a relation between the scatterometer backscatter measurements and the radiometer emissivity that is induced by surface winds. In order to do this we collocate Aquarius radiometer and scatterometer measurements with wind speed retrievals from the WindSat and SSMIS F17 microwave radiometers. Both of these satellites fly in orbits that have the same equatorial ascending crossing time (6 pm) as the Aquarius/SAC-D observatory. Rain retrievals from WindSat and SSMIS F 17 can be used to remove Aquarius observations that are rain contaminated. A byproduct of this analysis is a prediction for the wind-induced sea surface emissivity at L-band.

  7. Oxytocin and prolactin release after hypertonic saline administration in melatonin-treated male Syrian hamsters

    Energy Technology Data Exchange (ETDEWEB)

    Juszczak, M.; Steger, R.W.; Fadden, C.; Bartke, A. [Southern Illinois Univ., Carbondale, IL (United States)

    1996-12-31

    The aim of the present investigations was to examine the effects of melatonin (Mel) on oxytocin (OT) release under conditions of osmotic stimulation, brought about by hypertonic saline administration, as well as to determine whether osmotically stimulated OT release in Mel-treated Syrian hamster is associated with alterations in the release of prolactin (PRL) and in norepinephrine (NE) and dopamine (DA) content in the hypothalamus. In both Mel- and vehicle-treated hamsters, injection of hypertonic saline was followed by a significant decrease in OT content in the pituitary neurointermediate lobe (NIL) and elevation of plasma OT and PRL levels. Melatonin injections had no significant affect on NIL OT content in either isotonic- or hypertonic-saline treated animals. Pretreatment with Mel did not alter plasma OT or PRL levels in isotonic saline-injected animals. However, Mel facilitated the release of OT, but prevented the release of PRL after hypertonic saline administration. Melatonin treatment reduced hypothalamic NE content (but not that of DA) in isotonic-saline treated animals. After osmotic stimulation, hypothalamic content of NE and DA was significantly lower in Mel-treated than in vehicle-treated animals. Data from the present study suggest that the osmotically-stimulated release of OT and PRL seems to be related to the activation of noradrenergic rather than dopaminergic transmission. Both dopaminergic and noradrenergic transmission may be, however, involved in mediating the effects of Mel on the osmotically-activated OT and PRL release. (author). 48 refs, 3 figs.

  8. Salinity triggers proline synthesis in peanut leaves

    OpenAIRE

    Md. Ashrafuzzaman

    2011-01-01

    To investigate the magnitude of proline accumulation under different salinity levels, a salinity-imposed experiment was conducted. The peanut seedlings were cultured hydroponically for 7 days before imposing salinity and then grown further for another 7 days under salinity-loaded condition. Results showed that shoot dry matter, relative water content, chlorophyll and K+ decreased significantly with increasing salinity. In contrast, Na+, hydrogen peroxide and proline increased with increasing...

  9. Duct Leakage Repeatability Testing

    Energy Technology Data Exchange (ETDEWEB)

    Walker, Iain [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Sherman, Max [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2014-01-01

    Duct leakage often needs to be measured to demonstrate compliance with requirements or to determine energy or Indoor Air Quality (IAQ) impacts. Testing is often done using standards such as ASTM E1554 (ASTM 2013) or California Title 24 (California Energy Commission 2013 & 2013b), but there are several choices of methods available within the accepted standards. Determining which method to use or not use requires an evaluation of those methods in the context of the particular needs. Three factors that are important considerations are the cost of the measurement, the accuracy of the measurement and the repeatability of the measurement. The purpose of this report is to evaluate the repeatability of the three most significant measurement techniques using data from the literature and recently obtained field data. We will also briefly discuss the first two factors. The main question to be answered by this study is to determine if differences in the repeatability of these tests methods is sufficient to indicate that any of these methods is so poor that it should be excluded from consideration as an allowed procedure in codes and standards.

  10. Comparison of normal saline, hypertonic saline albumin and terlipressin plus hypertonic saline albumin in an infant animal model of hypovolemic shock.

    Directory of Open Access Journals (Sweden)

    Javier Urbano

    Full Text Available In series of cases and animal models suffering hemorrhagic shock, the use of vasopressors has shown potential benefits regarding hemodynamics and tissue perfusion. Terlipressin is an analogue of vasopressin with a longer half-life that can be administered by bolus injection. We have previously observed that hypertonic albumin improves resuscitation following controlled hemorrhage in piglets. The aim of the present study was to analyze whether the treatment with the combination of terlipressin and hypertonic albumin can produce better hemodynamic and tissular perfusion parameters than normal saline or hypertonic albumin alone at early stages of hemorrhagic shock in an infant animal model.Experimental, randomized animal study including 39 2-to-3-month-old piglets. Thirty minutes after controlled 30 ml/kg bleed, pigs were randomized to receive either normal saline (NS 30 ml/kg (n = 13, 5% albumin plus 3% hypertonic saline (AHS 15 ml/kg (n = 13 or single bolus of terlipressin 15 μg/kg i.v. plus 5% albumin plus 3% hypertonic saline 15 ml/kg (TAHS (n = 13 over 30 minutes. Global hemodynamic and tissular perfusion parameters were compared.After controlled bleed a significant decrease of blood pressure, cardiac index, central venous saturation, carotid and peripheral blood flow, brain saturation and an increase of heart rate, gastric PCO2 and lactate was observed. After treatment no significant differences in most hemodynamic (cardiac index, mean arterial pressure and perfusion parameters (lactate, gastric PCO2, brain saturation, cutaneous blood flow were observed between the three therapeutic groups. AHS and TAHS produced higher increase in stroke volume index and carotid blood flow than NS.In this pediatric animal model of hypovolemic shock, albumin plus hypertonic saline with or without terlipressin achieved similar hemodynamics and perfusion parameters than twice the volume of NS. Addition of terlipressin did not produce better results than AHS.

  11. Determining Salinity by Simple Means.

    Science.gov (United States)

    Schlenker, Richard M.

    This paper describes the construction and use of a simple salinometer. The salinometer is composed, mainly, of a milliammeter and a battery and uses the measurement of current flow to determine the salinity of water. A complete list of materials is given, as are details of construction and operation of the equipment. The use of the salinometer in…

  12. Bulk Moisture and Salinity Sensor

    Science.gov (United States)

    Nurge, Mark; Monje, Oscar; Prenger, Jessica; Catechis, John

    2013-01-01

    Measurement and feedback control of nutrient solutions in plant root zones is critical to the development of healthy plants in both terrestrial and reduced-gravity environments. In addition to the water content, the amount of fertilizer in the nutrient solution is important to plant health. This typically requires a separate set of sensors to accomplish. A combination bulk moisture and salinity sensor has been designed, built, and tested with different nutrient solutions in several substrates. The substrates include glass beads, a clay-like substrate, and a nutrient-enriched substrate with the presence of plant roots. By measuring two key parameters, the sensor is able to monitor both the volumetric water content and salinity of the nutrient solution in bulk media. Many commercially available moisture sensors are point sensors, making localized measurements over a small volume at the point of insertion. Consequently, they are more prone to suffer from interferences with air bubbles, contact area of media, and root growth. This makes it difficult to get an accurate representation of true moisture content and distribution in the bulk media. Additionally, a network of point sensors is required, increasing the cabling, data acquisition, and calibration requirements. measure the dielectric properties of a material in the annular space of the vessel. Because the pore water in the media often has high salinity, a method to measure the media moisture content and salinity simultaneously was devised. Characterization of the frequency response for capacitance and conductance across the electrodes was completed for 2-mm glass bead media, 1- to 2-mm Turface (a clay like media), and 1- to 2-mm fertilized Turface with the presence of root mass. These measurements were then used to find empirical relationships among capacitance (C), the dissipation factor (D), the volumetric water content, and the pore water salinity.

  13. Dextrose Prolotherapy Versus Control Injections in Painful Rotator Cuff Tendinopathy.

    Science.gov (United States)

    Bertrand, Helene; Reeves, Kenneth Dean; Bennett, Cameron J; Bicknell, Simon; Cheng, An-Lin

    2016-01-01

    To compare the effect of dextrose prolotherapy on pain levels and degenerative changes in painful rotator cuff tendinopathy against 2 potentially active control injection procedures. Randomized controlled trial, blinded to participants and evaluators. Outpatient pain medicine practice. Persons (N=73) with chronic shoulder pain, examination findings of rotator cuff tendinopathy, and ultrasound-confirmed supraspinatus tendinosis/tear. Three monthly injections either (1) onto painful entheses with dextrose (Enthesis-Dextrose), (2) onto entheses with saline (Enthesis-Saline), or (3) above entheses with saline (Superficial-Saline). All solutions included 0.1% lidocaine. All participants received concurrent programmed physical therapy. Primary: participants achieving an improvement in maximal current shoulder pain ≥2.8 (twice the minimal clinically important difference for visual analog scale pain) or not. Secondary: improvement in the Ultrasound Shoulder Pathology Rating Scale (USPRS) and a 0-to-10 satisfaction score (10, completely satisfied). The 73 participants had moderate to severe shoulder pain (7.0±2.0) for 7.6±9.6 years. There were no baseline differences between groups. Blinding was effective. At 9-month follow-up, 59% of Enthesis-Dextrose participants maintained ≥2.8 improvement in pain compared with Enthesis-Saline (37%; P=.088) and Superficial-Saline (27%; P=.017). Enthesis-Dextrose participants' satisfaction was 6.7±3.2 compared with Enthesis-Saline (4.7±4.1; P=.079) and Superficial-Saline (3.9±3.1; P=.003). USPRS findings were not different between groups (P=.734). In participants with painful rotator cuff tendinopathy who receive physical therapy, injection of hypertonic dextrose on painful entheses resulted in superior long-term pain improvement and patient satisfaction compared with blinded saline injection over painful entheses, with intermediate results for entheses injection with saline. These differences could not be attributed to a

  14. Penicillin G Procaine Injection

    Science.gov (United States)

    Penicillin G procaine injection is used to treat certain infections caused by bacteria. Penicillin G procaine injection should not be used to treat ... in the treatment of certain serious infections. Penicillin G procaine injection is in a class of medications ...

  15. Repeatability of Cryogenic Multilayer Insulation

    Science.gov (United States)

    Johnson, W. L.; Vanderlaan, M.; Wood, J. J.; Rhys, N. O.; Guo, W.; Van Sciver, S.; Chato, D. J.

    2017-01-01

    Due to the variety of requirements across aerospace platforms, and one off projects, the repeatability of cryogenic multilayer insulation has never been fully established. The objective of this test program is to provide a more basic understanding of the thermal performance repeatability of MLI systems that are applicable to large scale tanks. There are several different types of repeatability that can be accounted for: these include repeatability between multiple identical blankets, repeatability of installation of the same blanket, and repeatability of a test apparatus. The focus of the work in this report is on the first two types of repeatability. Statistically, repeatability can mean many different things. In simplest form, it refers to the range of performance that a population exhibits and the average of the population. However, as more and more identical components are made (i.e. the population of concern grows), the simple range morphs into a standard deviation from an average performance. Initial repeatability testing on MLI blankets has been completed at Florida State University. Repeatability of five GRC provided coupons with 25 layers was shown to be +/- 8.4 whereas repeatability of repeatedly installing a single coupon was shown to be +/- 8.0. A second group of 10 coupons have been fabricated by Yetispace and tested by Florida State University, through the first 4 tests, the repeatability has been shown to be +/- 16. Based on detailed statistical analysis, the data has been shown to be statistically significant.

  16. Iron Dextran Injection

    Science.gov (United States)

    ... allergic to iron dextran injection; any other iron injections such as ferric carboxymaltose (Injectafer), ferumoxytol (Feraheme), iron sucrose (Venofer), or sodium ferric gluconate (Ferrlecit);any other ...

  17. Small-Volume Injections: Evaluation of Volume Administration Deviation From Intended Injection Volumes.

    Science.gov (United States)

    Muffly, Matthew K; Chen, Michael I; Claure, Rebecca E; Drover, David R; Efron, Bradley; Fitch, William L; Hammer, Gregory B

    2017-10-01

    In the perioperative period, anesthesiologists and postanesthesia care unit (PACU) nurses routinely prepare and administer small-volume IV injections, yet the accuracy of delivered medication volumes in this setting has not been described. In this ex vivo study, we sought to characterize the degree to which small-volume injections (≤0.5 mL) deviated from the intended injection volumes among a group of pediatric anesthesiologists and pediatric postanesthesia care unit (PACU) nurses. We hypothesized that as the intended injection volumes decreased, the deviation from those intended injection volumes would increase. Ten attending pediatric anesthesiologists and 10 pediatric PACU nurses each performed a series of 10 injections into a simulated patient IV setup. Practitioners used separate 1-mL tuberculin syringes with removable 18-gauge needles (Becton-Dickinson & Company, Franklin Lakes, NJ) to aspirate 5 different volumes (0.025, 0.05, 0.1, 0.25, and 0.5 mL) of 0.25 mM Lucifer Yellow (LY) fluorescent dye constituted in saline (Sigma Aldrich, St. Louis, MO) from a rubber-stoppered vial. Each participant then injected the specified volume of LY fluorescent dye via a 3-way stopcock into IV tubing with free-flowing 0.9% sodium chloride (10 mL/min). The injected volume of LY fluorescent dye and 0.9% sodium chloride then drained into a collection vial for laboratory analysis. Microplate fluorescence wavelength detection (Infinite M1000; Tecan, Mannedorf, Switzerland) was used to measure the fluorescence of the collected fluid. Administered injection volumes were calculated based on the fluorescence of the collected fluid using a calibration curve of known LY volumes and associated fluorescence.To determine whether deviation of the administered volumes from the intended injection volumes increased at lower injection volumes, we compared the proportional injection volume error (loge [administered volume/intended volume]) for each of the 5 injection volumes using a linear

  18. Impact of Maximum Allowable Cost on CO2 Storage Capacity in Saline Formations.

    Science.gov (United States)

    Mathias, Simon A; Gluyas, Jon G; Goldthorpe, Ward H; Mackay, Eric J

    2015-11-17

    Injecting CO2 into deep saline formations represents an important component of many greenhouse-gas-reduction strategies for the future. A number of authors have posed concern over the thousands of injection wells likely to be needed. However, a more important criterion than the number of wells is whether the total cost of storing the CO2 is market-bearable. Previous studies have sought to determine the number of injection wells required to achieve a specified storage target. Here an alternative methodology is presented whereby we specify a maximum allowable cost (MAC) per ton of CO2 stored, a priori, and determine the corresponding potential operational storage capacity. The methodology takes advantage of an analytical solution for pressure build-up during CO2 injection into a cylindrical saline formation, accounting for two-phase flow, brine evaporation, and salt precipitation around the injection well. The methodology is applied to 375 saline formations from the U.K. Continental Shelf. Parameter uncertainty is propagated using Monte Carlo simulation with 10 000 realizations for each formation. The results show that MAC affects both the magnitude and spatial distribution of potential operational storage capacity on a national scale. Different storage prospects can appear more or less attractive depending on the MAC scenario considered. It is also shown that, under high well-injection rate scenarios with relatively low cost, there is adequate operational storage capacity for the equivalent of 40 years of U.K. CO2 emissions.

  19. Sensory findings after stimulation of the thoracolumbar fascia with hypertonic saline suggest its contribution to low back pain.

    Science.gov (United States)

    Schilder, Andreas; Hoheisel, Ulrich; Magerl, Walter; Benrath, Justus; Klein, Thomas; Treede, Rolf-Detlef

    2014-02-01

    Injection of hypertonic saline into deep tissues of the back (subcutis, muscle, or the surrounding fascia) can induce acute low back pain (LBP). So far, no study has analyzed differences in temporal, qualitative, and spatial pain characteristics originating from these tissues. The current study aimed to investigate the role of the thoracolumbar fascia as a potential source of LBP. In separate sessions, 12 healthy subjects received ultrasound-guided bolus injections of isotonic saline (0.9%) or hypertonic saline (5.8%) into the erector spinae muscle, the thoracolumbar fascia (posterior layer), and the overlying subcutis. Subjects were asked to rate pain intensity, duration, quality, and spatial extent. Pressure pain thresholds were determined pre and post injection. Injections of hypertonic saline into the fascia resulted in significantly larger area under the curve of pain intensity over time than injections into subcutis (Pfascia or subcutis. Pain radiation and pain affect evoked by fascia injection exceeded those of the muscle (Pfascia injection (burning, throbbing, and stinging) suggested innervation by both A- and C-fiber nociceptors. These findings show that the thoracolumbar fascia is the deep tissue of the back that is most sensitive to chemical stimulation, making it a prime candidate to contribute to nonspecific LBP but not to localized pressure hyperalgesia. Copyright © 2013 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.

  20. Efficacy of repeated intrathecal triamcinolone acetonide application in progressive multiple sclerosis patients with spinal symptoms

    Directory of Open Access Journals (Sweden)

    Przuntek Horst

    2004-11-01

    Full Text Available Abstract Background There are controversial results on the efficacy of the abandoned, intrathecal predominant methylprednisolone application in multiple sclerosis (MS in contrast to the proven effectiveness in intractable postherpetic neuralgia. Methods We performed an analysis of the efficacy of the application of 40 mg of the sustained release steroid triamcinolone acetonide (TCA. We intrathecally injected in sterile saline dissolved TCA six times within three weeks on a regular basis every third day in 161 hospitalized primary and predominant secondary progressive MS patients with spinal symptoms. The MS patients did not experience an acute onset of exacerbation or recent distinct increased progression of symptoms. We simultaneously scored the MS patients with the EDSS and the Barthel index, estimated the walking distance and measured somatosensory evoked potentials. Additionally the MS patients received a standardized rehabilitation treatment. Results EDSS score and Barthel index improved, walking distance increased, latencies of somatosensory evoked potentials of the median and tibial nerves shortened in all MS patients with serial evaluation (p Conclusions Repeated intrathecal TCA application improves spinal symptoms, walking distance and SSEP latencies in progressive MS patients in this uncontrolled study. Future trials should evaluate the long-term benefit of this invasive treatment.

  1. Salinity management in the Rio Grande Bosque

    Science.gov (United States)

    Jan M. H. Hendrickx; J. Bruce J. Harrison; Jelle Beekma; Graciela Rodriguez-Marin

    1999-01-01

    This paper discusses management options for salinity control in the Rio Grande Bosque. First, salt sources are identified and quantified. Capillary rise of ground water is the most important cause for soil salinization in the bosque. Next, a riparian salt balance is presented to explain the different mechanisms for soil salinization. Finally, the advantages and...

  2. Is intratympanic injection of erdosteine protective against cisplatin-induced ototoxicity?

    Science.gov (United States)

    Saliba, Issam; El Fata, Fouad

    2012-04-01

    Cisplatin induces ototoxicity in adult and pediatric population. Our aim was (1) to assess the protective effect of intratympanic injections of erdosteine in the prevention of cisplatin-induced ototoxicity and (2) to investigate inner ear protection using a scanning electron microscope. Ears of 20 Hartley guinea pigs were assigned to four subgroups and received an intratympanic injection of: E1-erdosteine 1.125 mg/cc, NS-normal saline, E2-erdosteine 2.25 mg/cc and E4-erdosteine 4.5 mg/cc. After 45 min, an intraperitoneal cisplatin injection of 3 mg/kg was performed and repeated 8 times, once a week to achieve 24 mg/kg. Auditory brainstem responses were recorded before any injection and after 24 mg/kg of cisplatin for the frequencies 1, 2, 4, 6 and 8 kHz. Cochleas were analyzed under scanning electron microscope. Average hearing loss in the NS subgroup was 29.8 dB which was lower than E1, E2 and E4 subgroups (40, 43.9, and 51.7 dB, respectively). Difference in the mean threshold increase was statistically significant between NS and the three erdosteine subgroups (P  0.05). However, difference was significant between E1 and E4 (P erdosteine showed a diffuse inflammatory reaction and osteitis of the middle ear. Low or high concentration of intratympanic erdosteine does not offer protection against cisplatin-induced ototoxicity as it causes a considerable inflammatory reaction.

  3. Secondary immune response of rainbow trout following repeated immersion vaccination

    DEFF Research Database (Denmark)

    Jaafar, R. M.; Al-Jubury, Azmi; Chettri, Jiwan Kumar

    2017-01-01

    Teleosts are able to raise a protective immune response, comprising both innate and adaptive elements, against various pathogens. This is the basis for a widespread use of vaccines, administered as injection or immersion, in the aquaculture industry. It has been described that repeated injection...... vaccination of fish raises a secondary immune response, consisting of rapid, accelerated and increased antibody reaction. This study reports how rainbow trout responds to repeated immersion vaccination against yersiniosis (ERM) caused by the bacterial pathogen Yersinia ruckeri. It was found that rainbow trout...... does not raise a classical secondary response following repeated immersion vaccination. Serum antibody titres were merely slightly increased even after three immunizations, using 30-s immersion into a bacterin consisting of formalin-inactivated Y. ruckeri (serotype O1, biotypes 1 and 2), performed over...

  4. Ondansetron Pretreatment Reduces Pain on Injection of Propofol

    Directory of Open Access Journals (Sweden)

    Anahid Maleki

    2012-04-01

    Full Text Available To assess the effectiveness of ondansetron pretreatment in alleviating propofol injection pain, 135 patients were randomly assigned to one of following three groups. Group 1 who received up to 2 mL pretreatment 50 mg tramadol in the saline, group 2 cases who received up to 2 mL pretreatment 4 mg ondansetron in saline, and group 3 who received up to 2 mL solution saline. A 20 gauge cannula was placed into the largest vein on the dorsum of the hand. Tourniquet was closed to the arm above the cannula and inflates to 70 mmHg, and then drug was injected. After 20 seconds, the tourniquet deflated, and propofol 2mg/kg injected over 10 seconds and pain assessment was made. Results: Tramadol and ondansetron significantly reduced the incidence and severity of propofol injection pain more than placebo (P=0.001. The efficacy of ondansetron in alleviating the pain on injection of propofol was no different from tramadol (P=0.330. Ondansetron pretreatment may be used to reduce the incidence of pain on injection of propofol, an advantage added to the useful prevention of postoperative nausea and vomiting.

  5. The Aquarius Salinity Retrieval Algorithm

    Science.gov (United States)

    Meissner, Thomas; Wentz, Frank; Hilburn, Kyle; Lagerloef, Gary; Le Vine, David

    2012-01-01

    The first part of this presentation gives an overview over the Aquarius salinity retrieval algorithm. The instrument calibration [2] converts Aquarius radiometer counts into antenna temperatures (TA). The salinity retrieval algorithm converts those TA into brightness temperatures (TB) at a flat ocean surface. As a first step, contributions arising from the intrusion of solar, lunar and galactic radiation are subtracted. The antenna pattern correction (APC) removes the effects of cross-polarization contamination and spillover. The Aquarius radiometer measures the 3rd Stokes parameter in addition to vertical (v) and horizontal (h) polarizations, which allows for an easy removal of ionospheric Faraday rotation. The atmospheric absorption at L-band is almost entirely due to molecular oxygen, which can be calculated based on auxiliary input fields from numerical weather prediction models and then successively removed from the TB. The final step in the TA to TB conversion is the correction for the roughness of the sea surface due to wind, which is addressed in more detail in section 3. The TB of the flat ocean surface can now be matched to a salinity value using a surface emission model that is based on a model for the dielectric constant of sea water [3], [4] and an auxiliary field for the sea surface temperature. In the current processing only v-pol TB are used for this last step.

  6. Saline Water Irrigation Scheduling Through a Crop-Water-Salinity Production Function and a Soil-Water-Salinity Dynamic Model

    Institute of Scientific and Technical Information of China (English)

    WANG Yang-Ren; KANG Shao-Zhong; LI Fu-heng; ZHANG Lu; ZHANG Jian-Hua

    2007-01-01

    Using a crop-water-salinity production function and a soil-water-salinity dynamic model, optimal irrigation scheduling was developed to maximize net return per irrigated area. Plot and field experiments were used to obtain the crop water sensitivity index, the salinity sensitivity index, and other parameters. Using data collected during 35 years to calculate the 10-day mean precipitation and evaporation, the variation in soil salinity concentrations and in the yields of winter wheat and cotton were simulated for 49 irrigation scheduling that were combined from 7 irrigation schemes over 3 irrigation dates and 7 salinity concentrations of saline irrigation water (fresh water and 6 levels of saline water). Comparison of predicted results with irrigation data obtained from a large area of the field showed that the model was valid and reliable. Based on the analysis of the investment cost of the irrigation that employed deep tube wells or shallow tube wells, a saline water irrigation schedule and a corresponding strategy for groundwater development and utilization were proposed. For wheat or cotton, if the salinity concentration was higher than 7.0 g L-1 in groundwater, irrigation was needed with only fresh water; if about 5.0 g L-1, irrigation was required twice with fresh water and once with saline water; and if not higher than 3.0 g L-1, irrigation could be solely with saline water.

  7. Sipuleucel-T Injection

    Science.gov (United States)

    Sipuleucel-T injection is used to treat certain types of advanced prostate cancer. Sipuleucel-T injection is in a class of medications called ... Sipuleucel-T injection comes as a suspension (liquid) to be injected over about 60 minutes into a vein ...

  8. Sea-surface temperature and salinity mapping from remote microwave radiometric measurements of brightness temperature

    Science.gov (United States)

    Hans-Juergen, C. B.; Kendall, B. M.; Fedors, J. C.

    1977-01-01

    A technique to measure remotely sea surface temperature and salinity was demonstrated with a dual frequency microwave radiometer system. Accuracies in temperature of 1 C and in salinity of part thousand for salinity greater than 5 parts per thousand were attained after correcting for the influence of extraterrestrial background radiation, atmospheric radiation and attenuation, sea-surface roughness, and antenna beamwidth. The radiometers, operating at 1.43 and 2.65 GHz, comprise a third-generation system using null balancing and feedback noise injection. Flight measurements from an aircraft at an altitude of 1.4 km over the lower Chesapeake Bay and coastal areas of the Atlantic Ocean resulted in contour maps of sea-surface temperature and salinity with a spatial resolution of 0.5 km.

  9. Repeated exposure of adolescent rats to oral methylphenidate does not induce behavioral sensitization or cross-sensitization to nicotine

    Directory of Open Access Journals (Sweden)

    C.C. Justo

    2010-07-01

    Full Text Available Several lines of evidence indicate that the use of stimulant drugs, including methylphenidate (MPD, increases tobacco smoking. This has raised concerns that MPD use during adolescence could facilitate nicotine abuse. Preclinical studies have shown that repeated treatment with an addictive drug produces sensitization to that drug and usually cross-sensitization to other drugs. Behavioral sensitization has been implicated in the development of drug addiction. We examined whether repeated oral MPD administration during adolescence could induce behavioral sensitization to MPD and long-lasting cross-sensitization to nicotine. Adolescent male Wistar rats were treated orally with 10 mg/kg MPD or saline (SAL from postnatal day (PND 27 to 33. To evaluate behavioral sensitization to MPD in adolescent rats (PND 39, the SAL pretreated group was subdivided into two groups that received intragastric SAL (1.0 mL/kg or MPD (10 mg/kg; MPD pretreated rats received MPD (10 mg/kg. Cross-sensitization was evaluated on PND 39 or PND 70 (adulthood. To this end, SAL- and MPD-pretreated groups received subcutaneous injections of SAL (1.0 mL/kg or nicotine (0.4 mg/kg. All groups had 8 animals. Immediately after injections, locomotor activity was determined. The locomotor response to MPD challenge of MPD-pretreated rats was not significantly different from that of the SAL-pretreated group. Moreover, the locomotor response of MPD-pretreated rats to nicotine challenge was not significantly different from that of the SAL-pretreated group. This lack of sensitization and cross-sensitization suggests that MPD treatment during adolescence does not induce short- or long-term neuroadaptation in rats that could increase sensitivity to MPD or nicotine.

  10. Hydrogeologic processes in saline systems: Playas, sabkhas, and saline lakes

    Science.gov (United States)

    Yechieli, Y.; Wood, W.W.

    2002-01-01

    Pans, playas, sabkhas, salinas, saline lakes, and salt flats are hydrologically similar, varying only in their boundary conditions. Thus, in evaluating geochemical processes in these systems, a generic water and solute mass-balance approach can be utilized. A conceptual model of a coastal sabkha near the Arabian Gulf is used as an example to illustrate the various water and solute fluxes. Analysis of this model suggests that upward flux of ground water from underlying formations could be a major source of solutes in the sabkha, but contribute only a small volume of the water. Local rainfall is the main source of water in the modeled sabkha system with a surprisingly large recharge-to-rainfall ratio of more than 50%. The contribution of seawater to the solute budget depends on the ratio of the width of the supratidal zone to the total width and is generally confined to a narrow zone near the shoreline of a typical coastal sabkha. Because of a short residence time of water, steady-state flow is expected within a short time (50,000 years). The solute composition of the brine in a closed saline system depends largely on the original composition of the input water. The high total ion content in the brine limits the efficiency of water-rock interaction and absorption. Because most natural systems are hydrologically open, the chemistry of the brines and the associated evaporite deposits may be significantly different than that predicted for hydrologically closed systems. Seasonal changes in temperature of the unsaturated zone cause precipitation of minerals in saline systems undergoing evaporation. Thus, during the hot dry season months, minerals exhibit retrograde solubility so that gypsum, anhydrite and calcite precipitate. Evaporation near the surface is also a major process that causes mineral precipitation in the upper portion of the unsaturated zone (e.g. halite and carnallite), provided that the relative humidity of the atmosphere is less than the activity of water

  11. Review of Knowledge on the Occurrence, Chemical Composition, and Potential Use for Desalination of Saline Ground Water in Arizona, New Mexico, and Texas with a Discussion of Potential Future Study Needs

    Science.gov (United States)

    Huff, G.F.

    2004-01-01

    Increasing demand on the limited supplies of freshwater in the desert Southwest, as well as other parts of the United States, has increased the level of interest in saline-water resources. Saline ground water has long been recognized as a potentially important contributor to water supply in the Southwest, as demonstrated by the number of hydrologic, geologic, and engineering studies on the distribution of saline water and the feasibility of desalination. Potential future study needs include investigating and documenting the three-dimensional distribution of salinity and chemical composition of saline-water resources and the hydraulic properties of aquifers containing these saline-water resources, assessing the chemical suitability of saline water for use with existing and anticipated desalination technologies, simulating the effect of withdrawal of saline ground water on water levels and water composition in saline and adjoining or overlying freshwater aquifers, and determining the suitability of target geologic formations for injection of desalination-generated waste.

  12. MR-guided Neurolytic Celiac Plexus Ablation: An Evaluation of Effect and Injection Spread Pattern in Cancer Patients with Celiac Tumor Infiltration

    Energy Technology Data Exchange (ETDEWEB)

    Akural, Etem [Helsinki University Central Hospital, Pain Clinic (Finland); Ojala, Risto O. [Oulu University Hospital, Department of Radiology (Finland); Jaervimaeki, Voitto [Oulu University Hospital, Department of Anesthesiology (Finland); Kariniemi, Juho; Tervonen, Osmo A.; Blanco Sequeiros, Roberto, E-mail: roberto.blanco@oulu.fi [Oulu University Hospital, Department of Radiology (Finland)

    2013-04-15

    ObjectiveThe purpose of this study was to evaluate the feasibility, the initial accuracy, and the effects of the MR-guided neurolytic celiac plexus ablation as a method to treat cancer-induced chronic abdominal pain. Thirteen celiac plexus ablations were performed for 12 patients. A 0.23-T open MRI scanner with optical navigation was used for procedural guidance. As an adjunct to the MR-guided needle positioning, the needle location was confirmed with saline injection and consequent MR imaging (STIR sequence). The spread of the ablative injection material (alcohol-lidocaine mix) was observed by repeating this sequence after the therapeutic injection. Pain scores from seven patients (eight ablations) were used to assess the therapy effect. MR guidance allowed adequate needle positioning and visualization of injection material in all cases. The rest pain scores significantly decreased from 4 (median) at baseline to 1 (median) at 2 weeks (p < 0.05). Average and worst pain experienced during the past week were significantly lower at the 2-week time point compared with the baseline (p < 0.05). However, the intervention did not result in reduction of opioid use at 2 weeks.MR guidance is an accurate and safe method for celiac plexus ablation with positive therapeutic effect.

  13. Saline Ground Water and Irrigation Water on Root Zone Salinity

    Directory of Open Access Journals (Sweden)

    T. Subramani

    2014-06-01

    Full Text Available Salinisation of land and rivers is a problem of national importance in India. Appropriate land management options to alleviate salinisation should be chosen with knowledge of the effects of land management on stream flow, stream salinity, stream salt load and land productivity. The Management of Catchment Salinisation (MCS modelling approach has been described in earlier work. It links a one-dimensional soil water model with a groundwater model to investigate the effects of management options in study areas of approximately 50 km2. The one dimensional model is used to characterize the annual soil water balance as a function of underlying aquifer Vpotential for all required combinations of soil, vegetation and groundwater salinity. It includes the effect of salt accumulation on plant water use. A groundwater model is then used to estimate the depth to water table across the study area that reflects the topography, hydrogeology and the distribution of vegetation. The MCS model is used to investigate the potential effects of future land use scenarios on catchment salt and water balance. Land use scenarios that have been considered include: forest plantations, revegetation with native trees and shrubs, and development of small areas of crops (10 to 20 ha irrigated with groundwater. This project focuses on the development of small crop areas irrigated with groundwater and investigates the sustainability of these schemes. It also compares the reduction of catchment salt load export under irrigation development with the reduction under afforestation

  14. Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, Julio Enrique

    2003-12-18

    Injection of carbon dioxide (CO{sub 2}) into saline aquifers has been proposed as a means to reduce greenhouse gas emissions (geological carbon sequestration). Large-scale injection of CO{sub 2} will induce a variety of coupled physical and chemical processes, including multiphase fluid flow, fluid pressurization and changes in effective stress, solute transport, and chemical reactions between fluids and formation minerals. This work addresses some of these issues with special emphasis given to the physics of fluid flow in brine formations. An investigation of the thermophysical properties of pure carbon dioxide, water and aqueous solutions of CO{sub 2} and NaCl has been conducted. As a result, accurate representations and models for predicting the overall thermophysical behavior of the system CO{sub 2}-H{sub 2}O-NaCl are proposed and incorporated into the numerical simulator TOUGH2/ECO{sub 2}. The basic problem of CO{sub 2} injection into a radially symmetric brine aquifer is used to validate the results of TOUGH2/ECO2. The numerical simulator has been applied to more complex flow problem including the CO{sub 2} injection project at the Sleipner Vest Field in the Norwegian sector of the North Sea and the evaluation of fluid flow dynamics effects of CO{sub 2} injection into aquifers. Numerical simulation results show that the transport at Sleipner is dominated by buoyancy effects and that shale layers control vertical migration of CO{sub 2}. These results are in good qualitative agreement with time lapse surveys performed at the site. High-resolution numerical simulation experiments have been conducted to study the onset of instabilities (viscous fingering) during injection of CO{sub 2} into saline aquifers. The injection process can be classified as immiscible displacement of an aqueous phase by a less dense and less viscous gas phase. Under disposal conditions (supercritical CO{sub 2}) the viscosity of carbon dioxide can be less than the viscosity of the aqueous

  15. On Maximal Injectivity

    Institute of Scientific and Technical Information of China (English)

    Ming Yi WANG; Guo ZHAO

    2005-01-01

    A right R-module E over a ring R is said to be maximally injective in case for any maximal right ideal m of R, every R-homomorphism f : m → E can be extended to an R-homomorphism f' : R → E. In this paper, we first construct an example to show that maximal injectivity is a proper generalization of injectivity. Then we prove that any right R-module over a left perfect ring R is maximally injective if and only if it is injective. We also give a partial affirmative answer to Faith's conjecture by further investigating the property of maximally injective rings. Finally, we get an approximation to Faith's conjecture, which asserts that every injective right R-module over any left perfect right self-injective ring R is the injective hull of a projective submodule.

  16. Adopted: A practical salinity scale

    Science.gov (United States)

    The Unesco/ICES/SCOR/IAPSO Joint Panel on Oceanographic Tables and Standards has recommended the adoption of a Practical Salinity Scale, 1978, and a corresponding new International Equation of State of Seawater, 1980. A full account of the research leading to their recommendation is available in the series Unesco Technical Papers in Marine Science.The parent organizations have accepted the panel's recommendations and have set January 1, 1982, as the date when the new procedures, formulae, and tables should replace those now in use.

  17. Thrombospondin-1 type 1 repeats in a model of inflammatory bowel disease: transcript profile and therapeutic effects.

    Directory of Open Access Journals (Sweden)

    Zenaida P Lopez-Dee

    Full Text Available Thrombospondin-1 (TSP-1 is a matricellular protein with regulatory functions in inflammation and cancer. The type 1 repeats (TSR domains of TSP-1 have been shown to interact with a wide range of proteins that result in the anti-angiogenic and anti-tumor properties of TSP-1. To ascertain possible functions and evaluate potential therapeutic effects of TSRs in inflammatory bowel disease, we conducted clinical, histological and microarray analyses on a mouse model of induced colitis. We used dextran sulfate sodium (DSS to induce colitis in wild-type (WT mice for 7 days. Simultaneously, mice were injected with either saline or one form of TSP-1 derived recombinant proteins, containing either (1 the three type 1 repeats of the TSP-1 (3TSR, (2 the second type 1 repeat (TSR2, or (3 TSR2 with the RFK sequence (TSR2+RFK. Total RNA isolated from the mice colons were processed and hybridized to mouse arrays. Array data were validated by real-time qPCR and immunohistochemistry. Histological and disease indices reveal that the mice treated with the TSRs show different patterns of leukocytic infiltration and that 3TSR treatment was the most effective in decreasing inflammation in DSS-induced colitis. Transcriptional profiling revealed differentially expressed (DE genes, with the 3TSR-treated mice showing the least deviation from the WT-water controls. In conclusion, this study shows that 3TSR treatment is effective in attenuating the inflammatory response to DSS injury. In addition, the transcriptomics work unveils novel genetic data that suggest beneficial application of the TSR domains in inflammatory bowel disease.

  18. Hypercalcemic encephalopathy due to milk alkali syndrome and injection teriparatide

    Directory of Open Access Journals (Sweden)

    Sandeep Kharb

    2012-01-01

    Full Text Available An 82-year-old male, a known case of severe osteoporosis with vertebral fracture and prostatic carcinoma, was treated with gonadotropin releasing hormone analogue, calcium carbonate, cholecalciferol sachet and injection teriparatide. His diet consisted of milk and curd. He developed altered behavior and generalized weakness, and on investigation, hypercalcemia, hypokalemia, and metabolic alkalosis with low parathyroid hormone levels were detected. Injection teriparatide was stopped and he was managed with forced saline diuresis and injection zoledronic acid. He was diagnosed as a case of milk alkali syndrome in whom teriparatide and prolonged immobilization played a permissive role in the development of hypercalcemic encephalopathy.

  19. Expansion of protein domain repeats.

    Directory of Open Access Journals (Sweden)

    Asa K Björklund

    2006-08-01

    Full Text Available Many proteins, especially in eukaryotes, contain tandem repeats of several domains from the same family. These repeats have a variety of binding properties and are involved in protein-protein interactions as well as binding to other ligands such as DNA and RNA. The rapid expansion of protein domain repeats is assumed to have evolved through internal tandem duplications. However, the exact mechanisms behind these tandem duplications are not well-understood. Here, we have studied the evolution, function, protein structure, gene structure, and phylogenetic distribution of domain repeats. For this purpose we have assigned Pfam-A domain families to 24 proteomes with more sensitive domain assignments in the repeat regions. These assignments confirmed previous findings that eukaryotes, and in particular vertebrates, contain a much higher fraction of proteins with repeats compared with prokaryotes. The internal sequence similarity in each protein revealed that the domain repeats are often expanded through duplications of several domains at a time, while the duplication of one domain is less common. Many of the repeats appear to have been duplicated in the middle of the repeat region. This is in strong contrast to the evolution of other proteins that mainly works through additions of single domains at either terminus. Further, we found that some domain families show distinct duplication patterns, e.g., nebulin domains have mainly been expanded with a unit of seven domains at a time, while duplications of other domain families involve varying numbers of domains. Finally, no common mechanism for the expansion of all repeats could be detected. We found that the duplication patterns show no dependence on the size of the domains. Further, repeat expansion in some families can possibly be explained by shuffling of exons. However, exon shuffling could not have created all repeats.

  20. Repeated Intramuscular-dose Toxicity Test of Water-soluble Carthami Flos (WCF Pharmacopuncture in Sprague-Dawley Rats

    Directory of Open Access Journals (Sweden)

    Yoo-min Choi

    2015-03-01

    Full Text Available Objectives: Water-soluble carthami flos (WCF is a new mixture of Carthami flos (CF pharmacopuncture. We conducted a 4-week toxicity test of repeated intramuscular injections of WCF in Sprague-Dawley rats. Methods: Forty male and 40 female rats were divided into 4 groups of 10 male and 10 female SD rats: The control group received 0.5 mL/animal/day of normal saline whereas the three experimental groups received WCF at doses of 0.125, 0.25, and 0.5 mL/animal/day, respectively. For 4 weeks, the solutions were injected into the femoral muscle of the rats alternating from side to side. Clinical signs, body weights, and food consumption were observed; opthalmological examinations and urinalyses were performed. On day 29, blood samples were taken for hematological and clinical chemistry analyses. Then, necropsy was conducted in all animals to observe weights and external and histopathological changes in the bodily organs. All data were tested using a statistical analysis system (SAS. Results: No deaths were observed. Temporary irregular respiration was observed in male rats of the experimental group for the first 10 days. Body weights, food consumptions, opthalmological examinations, urinalyses, clinical chemistry analyses, organ weights and necropsy produced no findings with toxicological meaning. In the hematological analysis, delay of prothrombin time (PT was observed in male rats of the 0.25- and the 0.5-mL/animal/day groups. In the histopathological test, a dose-dependent inflammatory cell infiltration into the fascia and panniculitis in perimuscular tissues was observed in all animals of the experimental groups. However, those symptoms were limited to local injection points. No toxicological meanings, except localized changes, were noted. Conclusion: WCF solution has no significant toxicological meaning, but does produce localized symptoms. No observed adverse effect level (NOAEL of WCF in male and female rats is expected for doses over 0.5 mL/animal/day.

  1. Behavior affected by routine oxytocin injection in crossbred cows in the tropics

    Directory of Open Access Journals (Sweden)

    Miguel Angel Lammoglia

    Full Text Available ABSTRACT The objective of the study was to determine the effect of routine intramuscular injection of oxytocin to induce milk ejection on behavior assessed in terms of stress and rectal temperature in crossbred cows (Bos indicus × Bos taurus in the tropics of Veracruz, México. Immediately after calving, cows were milked twice a day (n = 210 and randomly assigned to receive at each milking: 10 IU (0.5 mL of oxytocin intramuscularly (n = 70; 0.5 mL of saline solution intramuscularly (n = 70; or no injection (n = 70. The following behavioral indicators of stress were observed: trampling, kicking, tail movement, failure to eat, jumping to avoid injection, vocalization, urination, and defecation. After milking, rectal temperature (RT was measured. Statistical analysis was performed using ANOVA and chi-square. There were no differences in terms of behavioral stress indicators or rectal temperature in cows injected with oxytocin or saline solution, but both groups had greater behavioral indicators of stress and RT compared with non-injected cows. Cows injected with oxytocin or saline solution manifested a higher percentage of animals that trampled (96.8%, kicked (32%, ceased eating (61.2%, moved the tail (81.2%, jumped (20.9% and avoided the injection (78.2%, compared with non-injected cows. Cows injected with oxytocin and saline solution had higher rectal temperature (39.13±0.08 ºC compared with non-injected cows (38.96±0.12 ºC. All injected cows had higher behavioral indicators of stress measurements and rectal temperature regardless of the solution, suggesting that cows injected routinely and intramuscularly do not become habituated to this, even though some cows were injected more than 600 times throughout lactation.

  2. Population specific salinity tolerance in eelgrass (Zostera marina)

    DEFF Research Database (Denmark)

    Salo, Tiina Elina; Pedersen, Morten Foldager; Boström, Christoffer

    2014-01-01

    Salinity is one of the main factors impacting distribution of marine plants and sub-optimal salinities may result in increased resource use and decreased production.We studied the performance and salinity tolerance of eelgrass (Zostera marina L.) originating from two regions with different ambient...... salinities: a low saline (salinity 6) and a high saline (salinity 20) population. Plants fromboth populationswere exposed to a series of fixed salinities (2, 4, 6, 9, 12.5, 15, 20 and 25) for 5 weeks. Both plant origin and salinity affected plant performance significantly. Plant production decreasedwith...... decreasing salinity in both populations,while mortality increased in lowsalinity only in plants originating from the high saline population. The better performance of the low saline population in the lowest salinities indicates a horizontal shift in salinity tolerance among populationswith different origin...

  3. DWI Repeaters and Non-Repeaters: A Comparison.

    Science.gov (United States)

    Weeber, Stan

    1981-01-01

    Discussed how driving-while-intoxicated (DWI) repeaters differed signigicantly from nonrepeaters on 4 of 23 variables tested. Repeaters were more likely to have zero or two dependent children, attend church frequently, drink occasionally and have one or more arrests for public intoxication. (Author)

  4. To Repeat or Not to Repeat a Course

    Science.gov (United States)

    Armstrong, Michael J.; Biktimirov, Ernest N.

    2013-01-01

    The difficult transition from high school to university means that many students need to repeat (retake) 1 or more of their university courses. The authors examine the performance of students repeating first-year core courses in an undergraduate business program. They used data from university records for 116 students who took a total of 232…

  5. [Temporomandibular joint arthropathy in situ steroid injection].

    Science.gov (United States)

    Gagé, J; Gallucci, A; Arnaud, M; Chossegros, C; Foletti, J M

    2016-09-01

    Temporomandibular disorders (TMDs) affect the masticatory muscles and the temporomandibular joints (TMJs). TMDs most often result from occlusal and/or muscular disorders and are then called primary or idiopathic TMDs. Less frequently, TMDs are related to local (trauma, infection) or general (rheumatoid arthritis) causes and are then called secondary TMDs. A little known iatrogenic cause of secondary TDM is the osteoarthritis that may be induced by intra-articular cortisone injections. We report one case of condylar lysis that occurred after one single intra-articular cortisone injection. A 62-years-old woman consulted for a long-lasting TMD on the left side manifesting itself through pain and noise. She benefited one year before from an intra-articular injection of cortisone by her rheumatologist for repeated closed lock of her left TMJ. Physical examination showed limited mouth opening with deviation on the left side. Lateral movements on the right side were impossible. The panoramic X-ray showed a condylar lysis on the left side that was on the CT scan. MRI additionally showed an anteriorly displaced and severely reshaped disc and an articular inflammation without intra-articular effusion. TMJ osteoarthritis secondary to unique or repeated intra-articular steroid injections are little-known. They are clinically expressed as typical TMDs and characterized on X-rays by condylar lysis and inflammation. Intra-articular injections of steroids are not totally harmless and other treatments must be preferred. Copyright © 2016. Published by Elsevier Masson SAS.

  6. CO2 plume management in saline reservoir sequestration

    Science.gov (United States)

    Frailey, S.M.; Finley, R.J.

    2011-01-01

    A significant difference between injecting CO2 into saline aquifers for sequestration and injecting fluids into oil reservoirs or natural gas into aquifer storage reservoirs is the availability and use of other production and injection wells surrounding the primary injection well(s). Of major concern for CO2 sequestration using a single well is the distribution of pressure and CO2 saturation within the injection zone. Pressure is of concern with regards to caprock integrity and potential migration of brine or CO2 outside of the injection zone, while CO2 saturation is of interest for storage rights and displacement efficiency. For oil reservoirs, the presence of additional wells is intended to maximize oil recovery by injecting CO2 into the same hydraulic flow units from which the producing wells are withdrawing fluids. Completing injectors and producers in the same flow unit increases CO2 throughput, maximizes oil displacement efficiency, and controls pressure buildup. Additional injectors may surround the CO2 injection well and oil production wells in order to provide external pressure to these wells to prevent the injected CO2 from migrating from the pattern between two of the producing wells. Natural gas storage practices are similar in that to reduce the amount of "cushion" gas and increase the amount of cycled or working gas, edge wells may be used for withdrawal of gas and center wells used for gas injection. This reduces loss of gas to the formation via residual trapping far from the injection well. Moreover, this maximizes the natural gas storage efficiency between the injection and production wells and reduces the areal extent of the natural gas plume. Proposed U.S. EPA regulations include monitoring pressure and suggest the "plume" may be defined by pressure in addition to the CO2 saturated area. For pressure monitoring, it seems that this can only be accomplished by injection zone monitoring wells. For pressure, these wells would not need to be very

  7. The SMOS ocean salinity retrieval algorithm

    Science.gov (United States)

    Font, J.

    2009-04-01

    SMOS (Soil Moisture and Ocean Salinity) will be, from spring 2009, the first space mission attempting the determination of sea surface salinity using microwave L-band radiometry. The SMOS aperture synthesis technique poses strict requirements to instrument calibration and stability for a successful brightness temperature image reconstruction. Besides this, the low sensitivity of Tb to salinity, even at L-band, and the still not fully developed/validated emissivity models at this frequency taking into account all the physical processes that impact on it, mainly the effects of surface roughness, plus the need of removing from the recorded signal the contributions of scattered radiation from external sources (sun, galaxy) result in a really challenging salinity determination by SMOS. In this presentation we review the approach implemented in SMOS for salinity retrieval from the calibrated brightness temperature maps. The different processing steps are summarily described, as well as their implementation status and validation in the SMOS level 2 salinity processor.

  8. Epoetin Alfa Injection

    Science.gov (United States)

    ... Combivir), a medication used to treat human immunodeficiency virus (HIV). Epoetin alfa injection is also used before ... inject epoetin alfa, as directed by your doctor. Write down the date, time, dose of epoetin alfa ...

  9. Collagenase Clostridium Histolyticum Injection

    Science.gov (United States)

    Collagenase Clostridium histolyticum injection is used to treat Dupuytren's contracture (a painless thickening and tightening of tissue [cord] beneath ... of tissue can be felt upon examination. Collagenase Clostridium histolyticum injection is also used to treat Peyronie's ...

  10. Iron Sucrose Injection

    Science.gov (United States)

    Iron sucrose injection is used treat iron-deficiency anemia (a lower than normal number of red blood cells due ... and may cause the kidneys to stop working). Iron sucrose injection is in a class of medications called iron ...

  11. Intracytoplasmic sperm injection

    Science.gov (United States)

    Intracytoplasmic sperm injection, or ICSI, is a form of in vitro fertilization in which fertilization occurs outside of the ... laboratory dish. Within a few hours, a single sperm is injected through a fine needle into the ...

  12. Sodium Ferric Gluconate Injection

    Science.gov (United States)

    Sodium ferric gluconate injection is used to treat iron-deficiency anemia (a lower than normal number of ... are also receiving the medication epoetin (Epogen, Procrit). Sodium ferric gluconate injection is in a class of ...

  13. Calcitonin Salmon Injection

    Science.gov (United States)

    Calcitonin salmon injection is used to treat osteoporosis in postmenopausal women. Osteoporosis is a disease that causes bones to weaken and break more easily. Calcitonin salmon injection is also used to treat Paget's disease ...

  14. Other Injectable Medications

    Science.gov (United States)

    ... July 17, 2013 Last Edited: February 22, 2017 Articles from Diabetes Forecast® magazine: cg-infusion-sets,meds-bg-injectables,cg-injection-aids, In this section Treatment and Care Medication Insulin & ...

  15. Injection losses and protection

    CERN Document Server

    Bartmann, W; Baudrenghien, P; Bracco, C; Dehning, B; Di Mauro, A; Drosdal, L; Emery, J; Goddard, B; Holzer, E B; Höfle, W; Kain, V; Meddahi, M; Radaelli, S; Shaposhnilova, E; Uythoven, J; Valuch, D; Wenninger, J; Zamantzas, C; Gianfelice-Wendt, E

    2012-01-01

    Injection losses are compared for 2010 and 2011 operation. Mitigation techniques which were put in place in 2010 to reduce losses at injection are described. Issues in 2011 operation, their potential improvements and the performance reach for 2012 are shown.

  16. Effect of saline flush on enhancement of proximal and distal segments using 320-row coronary CT angiography

    Energy Technology Data Exchange (ETDEWEB)

    Tomizawa, Nobuo, E-mail: tomizawa-tky@umin.ac.jp [Department of Radiology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Suzuki, Fumio; Akahane, Masaaki [Department of Radiology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Torigoe, Rumiko [Toshiba Medical Systems Corporation, Tokyo Metropolitan Regional Office, 1-6, Tsukuda 2-Chome, Chuo-ku, Tokyo 104-0051 (Japan); Kiryu, Shigeru [Department of Radiology, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639 (Japan); Ohtomo, Kuni [Department of Radiology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

    2013-08-15

    Objective: To investigate the effect of saline flush on coronary CT angiography of proximal, middle, and distal coronary artery segments, using 320-row CT, and to compare two injection duration protocols as to amount of contrast in the right heart chambers. Methods: This retrospective study was approved by the local ethics committee, and the requirement for informed consent to participate in this study was waived. The final study group included 108 patients who underwent coronary CT angiography. The first 36 patients received contrast medium without saline flush (group 1); the next 36 patients received contrast medium for 14 s and saline flush (group 2); the last 36 patients received contrast medium for 12 s and saline flush (group 3). The CT number, noise, contrast-to-noise ratio (CNR), and number of segments with a CT number greater than 325 Hounsfield units (HU) were recorded for proximal, middle, and distal segments. Results: The CT numbers and the CNR in groups 2 and 3 were significantly higher than that in group 1 (p < 0.005); the difference between groups 2 and 3 was not significant. The proportion of segments greater than 325 HU improved with saline flush (p < 0.05), with a larger improvement in the distal segments. Conclusions: Saline flush improves enhancement and CNR of coronary arteries, particularly of distal segments, in coronary CT angiography using 320-row CT. An average contrast medium injection of 44 mL was feasible using a saline flush.

  17. A global algorithm for estimating Absolute Salinity

    Directory of Open Access Journals (Sweden)

    T. J. McDougall

    2012-12-01

    Full Text Available The International Thermodynamic Equation of Seawater – 2010 has defined the thermodynamic properties of seawater in terms of a new salinity variable, Absolute Salinity, which takes into account the spatial variation of the composition of seawater. Absolute Salinity more accurately reflects the effects of the dissolved material in seawater on the thermodynamic properties (particularly density than does Practical Salinity.

    When a seawater sample has standard composition (i.e. the ratios of the constituents of sea salt are the same as those of surface water of the North Atlantic, Practical Salinity can be used to accurately evaluate the thermodynamic properties of seawater. When seawater is not of standard composition, Practical Salinity alone is not sufficient and the Absolute Salinity Anomaly needs to be estimated; this anomaly is as large as 0.025 g kg−1 in the northernmost North Pacific. Here we provide an algorithm for estimating Absolute Salinity Anomaly for any location (x, y, p in the world ocean.

    To develop this algorithm, we used the Absolute Salinity Anomaly that is found by comparing the density calculated from Practical Salinity to the density measured in the laboratory. These estimates of Absolute Salinity Anomaly however are limited to the number of available observations (namely 811. In order to provide a practical method that can be used at any location in the world ocean, we take advantage of approximate relationships between Absolute Salinity Anomaly and silicate concentrations (which are available globally.

  18. Nifty Nines and Repeating Decimals

    Science.gov (United States)

    Brown, Scott A.

    2016-01-01

    The traditional technique for converting repeating decimals to common fractions can be found in nearly every algebra textbook that has been published, as well as in many precalculus texts. However, students generally encounter repeating decimal numerals earlier than high school when they study rational numbers in prealgebra classes. Therefore, how…

  19. Nifty Nines and Repeating Decimals

    Science.gov (United States)

    Brown, Scott A.

    2016-01-01

    The traditional technique for converting repeating decimals to common fractions can be found in nearly every algebra textbook that has been published, as well as in many precalculus texts. However, students generally encounter repeating decimal numerals earlier than high school when they study rational numbers in prealgebra classes. Therefore, how…

  20. Beam injection into RHIC

    Energy Technology Data Exchange (ETDEWEB)

    Fischer, W.; Hahn, H.; MacKay, W.W.; Satogata, T.; Tsoupas, N.; Zhang, W.

    1997-07-01

    During the RHIC sextant test in January 1997 beam was injected into a sixth of one of the rings for the first time. The authors describe the injection zone and its bottlenecks. They report on the commissioning of the injection system, on beam based measurements of the kickers and the application program to steer the beam.

  1. Injection moulding antireflective nanostructures

    DEFF Research Database (Denmark)

    Christiansen, Alexander Bruun; Clausen, Jeppe Sandvik; Mortensen, N. Asger

    2014-01-01

    in an injection moulding process, to fabricate the antireflective surfaces. The cycle-time was 35 s. The injection moulded structures had a height of 125 nm, and the visible spectrum reflectance of injection moulded black polypropylene surfaces was reduced from 4.5±0.5% to 2.5±0.5%. The gradient of the refractive...

  2. Injection moulding antireflective nanostructures

    DEFF Research Database (Denmark)

    Christiansen, Alexander Bruun; Clausen, Jeppe Sandvik; Mortensen, N. Asger

    in an injection moulding process, to fabricate the antireflective surfaces. The cycle-time was 35 s. The injection moulded structures had a height of 125 nm, and the visible spectrum reflectance of injection moulded black polypropylene surfaces was reduced from 4.5±0.5% to 2.5±0.5%. The gradient of the refractive...

  3. Salinity Temperature and Roughness Remote Scanner (STARRS)

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Provides spatially continuous high-resolution surface salinity imagery in a synoptic manner from small aircraft. Its output complements data collected from...

  4. SOIL SALINITY MAPPING USING MULTITEMPORAL LANDSAT DATA

    Directory of Open Access Journals (Sweden)

    A. Azabdaftari

    2016-06-01

    Full Text Available Soil salinity is one of the most important problems affecting many areas of the world. Saline soils present in agricultural areas reduce the annual yields of most crops. This research deals with the soil salinity mapping of Seyhan plate of Adana district in Turkey from the years 2009 to 2010, using remote sensing technology. In the analysis, multitemporal data acquired from LANDSAT 7-ETM+ satellite in four different dates (19 April 2009, 12 October 2009, 21 March 2010, 31 October 2010 are used. As a first step, preprocessing of Landsat images is applied. Several salinity indices such as NDSI (Normalized Difference Salinity Index, BI (Brightness Index and SI (Salinity Index are used besides some vegetation indices such as NDVI (Normalized Difference Vegetation Index, RVI (Ratio Vegetation Index, SAVI (Soil Adjusted Vegetation Index and EVI (Enhamced Vegetation Index for the soil salinity mapping of the study area. The field’s electrical conductivity (EC measurements done in 2009 and 2010, are used as a ground truth data for the correlation analysis with the original band values and different index image bands values. In the correlation analysis, two regression models, the simple linear regression (SLR and multiple linear regression (MLR are considered. According to the highest correlation obtained, the 21st March, 2010 dataset is chosen for production of the soil salinity map in the area. Finally, the efficiency of the remote sensing technology in the soil salinity mapping is outlined.

  5. Relating river discharges to salinity changes

    Science.gov (United States)

    Xie, X.; Liu, W. T.

    2014-12-01

    New river discharge data are brought together with spacebased sea surface salinity measurements by Aquarius and SMOS to demonstrate the role of river discharge in salinity changes near three river mouths: the Mississippi, the Ganges, and the Amazon. The characteristics of the seasonal cycle and the year-to-year changes of the river runoff are described. Various versions of the satellite salinity data are compared. The relative roles of river discharge, surface water flux, and horizontal advection in changing surface salinity in regions near the river mouths are examined. Satellite measurements of SSS clearly track movements of the fresh water from river discharges. Besides the river discharge, E-P plays an important role in the seasonal salinity variation near the Ganges and Irrawaddy River mouths. For the Mississippi and Amazon river mouths, central and eastern ITCZ, E-P contributes very little to the salinity seasonal change. In the central and eastern ITCZ, contribution of advection to the salinity tendency is clearly identified. Both salinity and salinity tendency are dominated by semi-annual cycle in the Atlantic ITCZ between 5ºN to 9ºN, whereas annual cycle dominates at other latitudes.

  6. Soil Salinity Mapping Using Multitemporal Landsat Data

    Science.gov (United States)

    Azabdaftari, A.; Sunar, F.

    2016-06-01

    Soil salinity is one of the most important problems affecting many areas of the world. Saline soils present in agricultural areas reduce the annual yields of most crops. This research deals with the soil salinity mapping of Seyhan plate of Adana district in Turkey from the years 2009 to 2010, using remote sensing technology. In the analysis, multitemporal data acquired from LANDSAT 7-ETM+ satellite in four different dates (19 April 2009, 12 October 2009, 21 March 2010, 31 October 2010) are used. As a first step, preprocessing of Landsat images is applied. Several salinity indices such as NDSI (Normalized Difference Salinity Index), BI (Brightness Index) and SI (Salinity Index) are used besides some vegetation indices such as NDVI (Normalized Difference Vegetation Index), RVI (Ratio Vegetation Index), SAVI (Soil Adjusted Vegetation Index) and EVI (Enhamced Vegetation Index) for the soil salinity mapping of the study area. The field's electrical conductivity (EC) measurements done in 2009 and 2010, are used as a ground truth data for the correlation analysis with the original band values and different index image bands values. In the correlation analysis, two regression models, the simple linear regression (SLR) and multiple linear regression (MLR) are considered. According to the highest correlation obtained, the 21st March, 2010 dataset is chosen for production of the soil salinity map in the area. Finally, the efficiency of the remote sensing technology in the soil salinity mapping is outlined.

  7. All-photonic quantum repeaters

    Science.gov (United States)

    Azuma, Koji; Tamaki, Kiyoshi; Lo, Hoi-Kwong

    2015-01-01

    Quantum communication holds promise for unconditionally secure transmission of secret messages and faithful transfer of unknown quantum states. Photons appear to be the medium of choice for quantum communication. Owing to photon losses, robust quantum communication over long lossy channels requires quantum repeaters. It is widely believed that a necessary and highly demanding requirement for quantum repeaters is the existence of matter quantum memories. Here we show that such a requirement is, in fact, unnecessary by introducing the concept of all-photonic quantum repeaters based on flying qubits. In particular, we present a protocol based on photonic cluster-state machine guns and a loss-tolerant measurement equipped with local high-speed active feedforwards. We show that, with such all-photonic quantum repeaters, the communication efficiency scales polynomially with the channel distance. Our result paves a new route towards quantum repeaters with efficient single-photon sources rather than matter quantum memories. PMID:25873153

  8. Impact of injection speed and volume on perceived pain during subcutaneous injections into the abdomen and thigh: a single-centre, randomized controlled trial.

    Science.gov (United States)

    Heise, T; Nosek, L; Dellweg, S; Zijlstra, E; Præstmark, K A; Kildegaard, J; Nielsen, G; Sparre, T

    2014-10-01

    The aim of this study was to assess pain associated with subcutaneous injection into the abdomen and thigh of different combinations of injection speeds and volumes. The study was a single-centre, one-visit, double-blinded, randomized controlled trial in 82 adults with type 1 or type 2 diabetes receiving daily injections of insulin or glucagon-like peptide-1 (GLP-1) agonists. Participants received 17 subcutaneous injections (12 in abdomen, 5 in thigh) of saline at different injection speeds (150, 300 and 450 µl/s), with different volumes (400, 800, 1200 and 1600 µl), and two needle insertions without any injection. Pain was evaluated on a 100-mm visual analogue scale (VAS) (0 mm no pain, 100 mm worst pain) and on a yes/no scale for pain acceptability. Injection speed had no impact on injection pain (p = 0.833). Injection of larger volumes caused significantly more pain [VAS least square mean differences 1600 vs. 400 µl, 7 · 2 mm (95% confidence interval - CI; 4.6-9.7; p Injection speed had no effect on injection pain, whereas higher injection volumes caused more pain. The results of this study may be of value for guiding patients to use the appropriate injection site and technique to reduce their injection pain. Furthermore, these findings may have important implications for the development of new injection devices and drug formulations for clinical practice. © 2014 John Wiley & Sons Ltd.

  9. Injectable Premixed Cement of Nanoapatite and Polyamide Composite

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    A new type of injectable premixed bone cement consisting of nano-hydroxyapatite (n-HA) and polyamide 66(PA66) composite is investigated. This cement can be handled as paste and easily shaped, which can set in air, in physiological saline solution and in blood. The setting time, injectability and compressive strength of the cement largely depend on the ratio of liquid to powder (L/P). Moreover, the content of n-HA in composite also affects the compressive strength and injectability of the cement. The premixed composite cement can remain stable in the package for a long period and harden only after delivery to the defects site. The results suggest that injectable premixed cement has a reasonable setting time, reasonable viscosity for injecting, excellent washout resistance and high mechanical strength, which can be developed for root canal filling, sealing and various bone defects augmentation.

  10. IGF-I and branchial IGF receptor expression and localization during salinity acclimation in striped bass

    DEFF Research Database (Denmark)

    Tipsmark, Christian Kølbaek; Luckenbach, John Adam; Madsen, Steffen

    2007-01-01

    The initial response of the IGF-I system and the expression and cellular localization of IGF type-I receptor (IGF-IR) were studied in the gill of a euryhaline teleost during salinity acclimation. Exposure of striped bass (Morone saxatilis) to hyperosmotic and hypoosmotic challenges induced small...... in either plasma IGF-I, liver, or gill IGF-I mRNA, or gill IGF-IR mRNA levels. In a separate experiment, FW-acclimated fish were injected with saline or IGF-I prior to a 24-h SW challenge. Rapid regain of osmotic balance following SW transfer was hindered by IGF-I. Immunohistochemistry revealed...

  11. Aquarius Instrument and Salinity Retrieval

    Science.gov (United States)

    Le Vine, D. M.

    2011-01-01

    Aquarius has been designed to map the surface salinity field of the global ocean from space a parameter important for understanding ocean circulation and its relationship to climate and the global water cycle. Salinity is measured remotely from space by measuring the thermal emission from the ocean surface. This is done at the low frequency end of the microwave spectrum (e.g. 1.4 GHz) where the emission is sufficiently sensitive to changes in salinity to be detected with sophisticated radiometers. The goal is to monitor the seasonal and interannual variation of the large scale features of the surface salinity field in the open ocean by providing maps on a monthly basis with a spatial resolution of 150 km and an accuracy of 0.2 psu. These are challenging requirements that have led to some unique features of the instrument. These include: a) The addition of a co-located scatterometer to help provide a correction for roughness; b) The addition of a polarimetric channel (third Stokes parameter) to the radiometer to help correct for Faraday rotation; c) Asun-synchronous orbit with a 6 pm ascending equatorial crossing to minimize Faraday rotation and with the antennas looking away from the sun toward the nighttime side to minimize contamination by radiation from the sun; and d) An antenna designed to limit side lobes in the direction of rays from the sun. In addition, achieving the accuracy goal of 0.2 psu requires averaging over one month and to do this requires a highly stable radiometer. Aquarius has three separate radiometers that image in pushbroom fashion with the three antenna beams looking across track. The antenna is a 2.5-m diameter, offset parabolic reflector with three feed horns and the three beams are arranged to image with the boresight aligned to look across track, roughly perpendicular to the spacecraft heading and pointing away from the Sun. The three beams point at angles of theta = 25.8 deg., 33.8 deg. and 40.3 deg. with respect to the spacecraft

  12. Soil salinity detection from satellite image analysis: an integrated approach of salinity indices and field data.

    Science.gov (United States)

    Morshed, Md Manjur; Islam, Md Tazmul; Jamil, Raihan

    2016-02-01

    This paper attempts to detect soil salinity from satellite image analysis using remote sensing and geographic information system. Salinity intrusion is a common problem for the coastal regions of the world. Traditional salinity detection techniques by field survey and sampling are time-consuming and expensive. Remote sensing and geographic information system offer economic and efficient salinity detection, monitoring, and mapping. To predict soil salinity, an integrated approach of salinity indices and field data was used to develop a multiple regression equation. The correlations between different indices and field data of soil salinity were calculated to find out the highly correlated indices. The best regression model was selected considering the high R (2) value, low P value, and low Akaike's Information Criterion. About 20% variation was observed between the field data and predicted EC from the satellite image analysis. The precision of this salinity detection technique depends on the accuracy and uniform distribution of field data.

  13. Influence of enrichment on behavioral and neurogenic effects of antidepressants in Wistar rats submitted to repeated forced swim test.

    Science.gov (United States)

    Possamai, Fernanda; dos Santos, Juliano; Walber, Thais; Marcon, Juliana C; dos Santos, Tiago Souza; Lino de Oliveira, Cilene

    2015-04-01

    Repeated forced swimming test (rFST) may detect gradual effects of antidepressants in adult rats. Antidepressants, as enrichment, affected behavior and neurogenesis in rats. However, the influence of enrichment on behavioral and neurogenic effects of antidepressants is unknown. Here, effects of antidepressants on rFST and hippocampal neurogenesis were investigated in rats under enriched conditions. Behaviors of male Wistar rats, housed from weaning in standard (SE) or enriched environment (EE), were registered during rFST. The rFST consisted of 15min of swimming (pretest) followed by 5min of swimming in the first (test), seventh (retest 1) and fourteenth (retest 2) days after pretest. One hour before the test, rats received an intraperitoneal injection of saline (1ml/kg), fluoxetine (2.5mg/kg) or imipramine (2.5 or 5mg/kg). These treatments were performed daily until the day of the retest 2. After retest 2, rats were euthanized for the identification of markers for neurogenesis in the hippocampus. Fluoxetine or imipramine decreased immobility in retests 1 and 2, as compared to saline. EE abolished these differences. In EE, fluoxetine or imipramine (5mg/kg) reduced immobility time in retest 2, as compared to the test. Independent of the housing conditions, fluoxetine and imipramine (5mg/kg) increased the ratio of immature neurons per progenitor cell in the hippocampus. In summary, antidepressants or enrichment counteracted the high immobility in rFST. Enrichment changed the effects of antidepressants in rFST depending on the type, and the dose of a substance but failed to change neurogenesis in control or antidepressant treated-rats. Effects of antidepressants and enrichment on rFST seemed neurogenesis-independent.

  14. Salinity extrema in the Arabian Sea

    Digital Repository Service at National Institute of Oceanography (India)

    Shenoi, S.S.C.; Shetye, S.R.; Gouveia, A.D.; Michael, G.S.

    . The dominant factors leading to the dormation of the little known subsurface salinity minimum appear to be, (1) transport of the low salinity water by the northeast monsoon coastal current along the west coast of India and subsequent increase in the surface...

  15. Investigations in Marine Chemistry: Salinity II.

    Science.gov (United States)

    Schlenker, Richard M.

    Presented is a science activity in which the student investigates methods of calibration of a simple conductivity meter via a hands-on inquiry technique. Conductivity is mathematically compared to salinity using a point slope formula and graphical techniques. Sample solutions of unknown salinity are provided so that the students can sharpen their…

  16. INTERATHECAL INJECTION OF NEOSTIGMINE FOR POSTOPERATIVE PAIN REDUCTION

    Directory of Open Access Journals (Sweden)

    H.R ABASI

    2000-03-01

    Full Text Available Background. Nowadays, important aim of surgical and anesthetic teams is removing of postoperative pain. One way for decreasing of postoperative pain is usage of interathecal injection of neostigmine. Neostigmine is an anticholinesterase drug to reverse the muscle relaxant effects. The main purpose of this study was evaluation the postoperative pain analgesic efficacy and safety of intrathecal neostigmine in patient undergoing below knee surgery with spinal anesthesia. Methods. In a clinical trial study sixty adult patients in ASA physical Status I or II were randomly divided into two groups. Group one received normal 1 ml normal saline plus 3ml marcaine and another one received 1ml neostigmine (50µg plus 3ml normal saline intrathecaly. The severity of postoperative pain was measured using a 10 cm visual analogue scale (0 mean no pain, 10 excruciating pain. If visual analogue scale was> 3, the patient requested analgesia. Findings. The mean time to the first analgesic administration was significantly prolonged by intrathecal neostigmine (10 h compared to normal saline (4.5 h (P < 0.001. Hypertension is seen in 2 patients in the neostigmine group but isn't seen in the normal saline (SO. also hypotension is seen only in one patient in the neostigmine group and 4 patients in the normal saline (SO. Four patients in the neostigmine group, one patient in the normal saline (SO had nausea. In the neostigmine group there isn't any vomiting, sweating, agitation or pruritis.

  17. Hydrogen-Saturated Saline Protects Intensive Narrow Band Noise-Induced Hearing Loss in Guinea Pigs through an Antioxidant Effect

    Science.gov (United States)

    Chen, Liwei; Yu, Ning; Lu, Yan; Wu, Longjun; Chen, Daishi; Guo, Weiwei; Zhao, Lidong; Liu, Mingbo; Yang, Shiming; Sun, Xuejun; Zhai, Suoqiang

    2014-01-01

    The purpose of the current study was to evaluate hydrogen-saturated saline protecting intensive narrow band noise-induced hearing loss. Guinea pigs were divided into three groups: hydrogen-saturated saline; normal saline; and control. For saline administration, the guinea pigs were given daily abdominal injections (1 ml/100 g) 3 days before and 1 h before narrow band noise exposure (2.5–3.5 kHz 130 dB SPL, 1 h). The guinea pigs in the control group received no treatment. The hearing function was assessed by the auditory brainstem response (ABR) and distortion product otoacoustic emission (DPOAE) recording. The changes of free radicals in the cochlea before noise exposure, and immediately and 7 days after noise exposure were also examined. By Scanning electron microscopy and succinate dehydrogenase staining, we found that pre-treatment with hydrogen-saturated saline significantly reduced noise-induced hair cell damage and hearing loss. We also found that the malondialdehyde, lipid peroxidation, and hydroxyl levels were significantly lower in the hydrogen-saturated saline group after noise trauma, indicating that hydrogen-saturated saline can decrease the amount of harmful free radicals caused by noise trauma. Our findings suggest that hydrogen-saturated saline is effective in preventing intensive narrow band noise-induced hearing loss through the antioxidant effect. PMID:24945316

  18. Modeling liver electrical conductivity during hypertonic injection.

    Science.gov (United States)

    Castellví, Quim; Sánchez-Velázquez, Patricia; Moll, Xavier; Berjano, Enrique; Andaluz, Anna; Burdío, Fernando; Bijnens, Bart; Ivorra, Antoni

    2017-05-30

    Metastases in the liver frequently grow as scattered tumor nodules that neither can be removed by surgical resection nor focally ablated. Previously, we have proposed a novel technique based on irreversible electroporation that may be able to simultaneously treat all nodules in the liver while sparing healthy tissue. The proposed technique requires increasing the electrical conductivity of healthy liver by injecting a hypersaline solution through the portal vein. Aiming to assess the capability of increasing the global conductivity of the liver by means of hypersaline fluids, here, it is presented a mathematical model that estimates the NaCl distribution within the liver and the resulting conductivity change. The model fuses well-established compartmental pharmacokinetic models of the organ with saline injection models used for resuscitation treatments, and it considers changes in sinusoidal blood viscosity because of the hypertonicity of the solution. Here, it is also described a pilot experimental study in pigs in which different volumes of NaCl 20% (from 100 to 200 mL) were injected through the portal vein at different flow rates (from 53 to 171 mL/minute). The in vivo conductivity results fit those obtained by the model, both quantitatively and qualitatively, being able to predict the maximum conductivity with a 14.6% average relative error. The maximum conductivity value was 0.44 second/m, which corresponds to increasing 4 times the mean basal conductivity (0.11 second/m). The results suggest that the presented model is well suited for predicting on liver conductivity changes during hypertonic saline injection. Copyright © 2017 John Wiley & Sons, Ltd.

  19. FROZEN SHOULDER TREATMENT: TRIAMCENALONE OR METHYLPREDNISOLONE INJECTION

    Directory of Open Access Journals (Sweden)

    Sanjib

    2015-10-01

    Full Text Available OBJECTIVE: To compare the effectiveness of Triamcinolone acetonide [40mg] and Methylprednisolone acetate [40mg] in 210 patients attending the Outpatient Department of Orthopedics of FAAMCH Barpeta with primary and secondary frozen shoulder. METHODS: A total number o f 210 patients with frozen shoulder who attended the Outpatient clinic of Orthopedics at FAAMCH from Jan 2013 to Jan 2015 were enrolled in our study. The diagnosis of frozen shoulder was made using the guidelines for shoulder complain issued by the Dutch C ollege of General Practitioners. Intra - articular injections of Triamcinolone acetonide [40mg] was used in 110 patients [ M ale - 50, female - 60] and 40mg Methylprednisolone was given to 100 patients [M ale - 35, female 65]. Injection was repeated every 3 weeks [ N o t more than 3 injections] by the posterior route. RESULTS: Triamcinolone acetonide was found to be more effective in diabetic patients with frozen shoulder in comparison to Methyprednisolone acetate. Triamcinolone acetonide was found to be more effective i n those patients presenting with severe grades of frozen shoulder and also these patients required lesser number of injections compared to Methylprednisolone acetate. However both Triamcinolone acatonide and Methyprednisolone were equally effective in prim ary frozen shoulder. CONCLUSION: We conclude that Triamcinolone acetonide and Methylprednisolone acetate are effective in the treatment of painful stiff shoulder; however injection Triamcinolone acetonide is a superior alternative in the treatment of diabe tics with frozen shoulder & resistant cases, with less number of injections.

  20. Biochar Mitigates Salinity Stress in Potato

    DEFF Research Database (Denmark)

    Akhtar, S S; Andersen, Mathias Neumann; Liu, Fulai

    2015-01-01

    A pot experiment was conducted in a climate-controlled greenhouse to investigate the growth, physiology and yield of potato in response to salinity stress under biochar amendment. It was hypothesized that addition of biochar may improve plant growth and yield by mitigating the negative effect...... of salinity through its high sorption ability. From tuber bulking to harvesting, the plants were exposed to three saline irrigations, that is 0, 25 and 50 mm NaCl solutions, respectively, and two levels of biochar (0 % and 5 % W/W) treatments. An adsorption study was also conducted to study the Na+ adsorption...... capability of biochar. Results indicated that biochar was capable to ameliorate salinity stress by adsorbing Na+. Increasing salinity level resulted in significant reductions of shoot biomass, root length and volume, tuber yield, photosynthetic rate (An), stomatal conductance (gs), midday leaf water...

  1. Optimization of Geological Environments for Carbon Dioxide Disposan in Saline Aquifers in the United States

    Energy Technology Data Exchange (ETDEWEB)

    Hovorka, Susan

    1999-02-01

    Recent research and applications have demonstrated technologically feasible methods, defined costs, and modeled processes needed to sequester carbon dioxide (CO{sub 2}) in saline-water-bearing formations (aquifers). One of the simplifying assumptions used in previous modeling efforts is the effect of real stratigraphic complexity on transport and trapping in saline aquifers. In this study we have developed and applied criteria for characterizing saline aquifers for very long-term sequestration of CO{sub 2}. The purpose of this pilot study is to demonstrate a methodology for optimizing matches between CO{sub 2} sources and nearby saline formations that can be used for sequestration. This project identified 14 geologic properties used to prospect for optimal locations for CO{sub 2} sequestration in saline-water-bearing formations. For this demonstration, we digitized maps showing properties of saline formations and used analytical tools in a geographic information system (GIS) to extract areas that meet variably specified prototype criteria for CO{sub 2} sequestration sites. Through geologic models, realistic aquifer properties such as discontinuous sand-body geometry are determined and can be used to add realistic hydrologic properties to future simulations. This approach facilitates refining the search for a best-fit saline host formation as our understanding of the most effective ways to implement sequestration proceeds. Formations where there has been significant drilling for oil and gas resources as well as extensive characterization of formations for deep-well injection and waste disposal sites can be described in detail. Information to describe formation properties can be inferred from poorly known saline formations using geologic models in a play approach. Resulting data sets are less detailed than in well-described examples but serve as an effective screening tool to identify prospects for more detailed work.

  2. Salinity fluctuation of the brine discharge affects growth and survival of the seagrass Cymodocea nodosa.

    Science.gov (United States)

    Garrote-Moreno, A; Fernández-Torquemada, Y; Sánchez-Lizaso, J L

    2014-04-15

    The increase of seawater desalination plants may affect seagrasses as a result of its hypersaline effluents. There are some studies on the salinity tolerance of seagrasses under controlled laboratory conditions, but few have been done in situ. To this end, Cymodocea nodosa shoots were placed during one month at four localities: two close to a brine discharge; and the other two not affected by the discharge, and this experiment was repeated four times. The results obtained showed a decrease in growth and an increased mortality at the localities affected by the brine discharge. An increase was detected in the percentage of horizontal shoots in respect to vertical shoots at the impacted localities. It is probably that not only the average salinity, but also the constant salinity fluctuations and slightly higher temperatures associated with the brine that may have caused physiological stress thus reducing C. nodosa growth and survival.

  3. Analysis of repeated measures data

    CERN Document Server

    Islam, M Ataharul

    2017-01-01

    This book presents a broad range of statistical techniques to address emerging needs in the field of repeated measures. It also provides a comprehensive overview of extensions of generalized linear models for the bivariate exponential family of distributions, which represent a new development in analysing repeated measures data. The demand for statistical models for correlated outcomes has grown rapidly recently, mainly due to presence of two types of underlying associations: associations between outcomes, and associations between explanatory variables and outcomes. The book systematically addresses key problems arising in the modelling of repeated measures data, bearing in mind those factors that play a major role in estimating the underlying relationships between covariates and outcome variables for correlated outcome data. In addition, it presents new approaches to addressing current challenges in the field of repeated measures and models based on conditional and joint probabilities. Markov models of first...

  4. Therapeutic Efficacy of Saline and Glucose Saline against Dermally applied Sulphur Mustard Intoxication in Mice

    Directory of Open Access Journals (Sweden)

    K. Sugendran

    1994-01-01

    Full Text Available A single dose of saline or glucose-saline (5 mg glucose/kg offered similar protection to mice against sulphur mustard intoxication, the extent of survival being 83 per cent as against 33 per cent without treatment. All the animals were protected when the treatment was extended by another two consecutive days in the glucose-saline treated group. Both saline and glucose-saline treatments could ameliorate the haemoconcentration as well as normalise pO/sub 2/ and % oxygen saturation. The protection conferred is attributed to the probable replenishment of fluid loss.

  5. Reconstructing Past Ocean Salinity ((delta)18Owater)

    Energy Technology Data Exchange (ETDEWEB)

    Guilderson, T P; Pak, D K

    2005-11-23

    Temperature and salinity are two of the key properties of ocean water masses. The distribution of these two independent but related characteristics reflects the interplay of incoming solar radiation (insolation) and the uneven distribution of heat loss and gain by the ocean, with that of precipitation, evaporation, and the freezing and melting of ice. Temperature and salinity to a large extent, determine the density of a parcel of water. Small differences in temperature and salinity can increase or decrease the density of a water parcel, which can lead to convection. Once removed from the surface of the ocean where 'local' changes in temperature and salinity can occur, the water parcel retains its distinct relationship between (potential) temperature and salinity. We can take advantage of this 'conservative' behavior where changes only occur as a result of mixing processes, to track the movement of water in the deep ocean (Figure 1). The distribution of density in the ocean is directly related to horizontal pressure gradients and thus (geostrophic) ocean currents. During the Quaternary when we have had systematic growth and decay of large land based ice sheets, salinity has had to change. A quick scaling argument following that of Broecker and Peng [1982] is: the modern ocean has a mean salinity of 34.7 psu and is on average 3500m deep. During glacial maxima sea level was on the order of {approx}120m lower than present. Simply scaling the loss of freshwater (3-4%) requires an average increase in salinity a similar percentage or to {approx}35.9psu. Because much of the deep ocean is of similar temperature, small changes in salinity have a large impact on density, yielding a potentially different distribution of water masses and control of the density driven (thermohaline) ocean circulation. It is partly for this reason that reconstructions of past salinity are of interest to paleoceanographers.

  6. Effect of different cork puncture methods on aseptic storage period of normal saline%不同方法穿刺瓶塞生理盐水无菌存放时间研究

    Institute of Scientific and Technical Information of China (English)

    程翠年; 张卉; 吴胜林; 王懿睿; 王霞; 谢敏; 李绍婷; 李林; 易旭慧

    2011-01-01

    Objective To study the effect of different materials of cork, puncture methods and frequencies on the aseptic storage period of normal saline injection kept in PIVAS. Methods We grouped normal saline injection bottles according to the materials of the cork (butyl or polyisoprene ), puncture methods(stochastic puncture or repeated puncture of a single site of the cork) and puncture frequencies(three or five times). Sterility test were taken immediately after the puncture, and at 1 h, 2 h,3 h,4 h,5 h,6 h,8 h, 10h and 12 h within storage. Results The normal saline injection with polyisoprene cork stayed aseptic within 10 h after the corks were punctured 3 or 5 times randomly. The injection stayed sterile within 6 h after 3 times of, or within 5 h after 5 times of puncture through a single site of the cork. The normal saline injection with butyl cork stayed aseptic within 8 h after 3 times of, or within 6 h after 5 times of stochastic puncture. The injection with butyl cork stayed sterile within 5 h after 3 times of, or within 4 h after 5 times of puncture through a single site of the cork. Conclusion Normal saline injection with two different materials of the cork is able to stay sterile within 4 h regardless of the puncture methods or frequencies. The storage period of normal saline injection whose corks are repeatedly punctured at a single site is shortened with increasing puncture frequency. Normal saline injection with butyl cork shows shorter storage period compared with those with polyisoprene cork. The results indicate that we should strictly obeythe misalign rules during intravenous drug preparation. Meanwhile, the procedure calls for advisable arrangement of drug preparation time according to the drug properties and usage requirements.%目的 研究静脉药物配置中心环境下瓶塞材质、穿刺方法及穿刺次数对生理盐水无菌存放时间的影响.方法 将静脉输液用生理盐水按胶塞的材质(丁基胶塞和聚异戊二烯胶塞)

  7. Epidural injections for back pain

    Science.gov (United States)

    ESI; Spinal injection for back pain; Back pain injection; Steroid injection - epidural; Steroid injection - back ... be pregnant What medicines you are taking, including herbs, supplements, and other drugs you bought without a ...

  8. Salinity Tolerance and Growth Response of Juvenile Oreochromis mossambicus at Different Salinity Levels

    Institute of Scientific and Technical Information of China (English)

    Khalid Jamil; Muhammad Shoaib; Faisal Ameer; LIN Hong

    2004-01-01

    Juveniles of Oreochromis mossambicus with initial wet weights of 0.0382±0.0859 g and initial total lengths of 0.735±1.425 cm were tested for their salinity tolerance. The juveniles were subjected to five salinity levels for a period of seventy-five days. These salinity levels correspond to the salinities found along the creek and in estuarine regions. Each set of experiments was conducted at a fifteen day intervals. The weight, length and survival rate were calculated. No mortality was observed at salinity levels 0, 5, 10 and 15, while the juveniles faced slight mortality at 20 in the same environmental conditions, including the diet. There was no significant difference in specific growth rate at all salinity levels. The juveniles of O.mossambicus could survive up to 20 salinity. These results suggest that this species can grow and be exploited commercially in brackish waters, rivers and estuarine regions.

  9. Study of Single-dose Toxicity of Guseonwangdo-go Glucose Intramuscular Injection in Sprague-Dawley Rats

    Directory of Open Access Journals (Sweden)

    Jo Su-jeong

    2014-03-01

    Full Text Available Objectives: This study was performed to analyze single-dose intramuscular toxicity of Guseonwangdo-go glucose pharmacopuncture. Methods: Eighty six-week-old Sprague-Dawley rats were divided into two large groups of forty rats; Guseonwangdo-go glucose 5% and Guseonwangdo-go glucose 20% groups. Each group was sub-divided into four smaller groups of five males and five females, with the following dosages of pharmacopuncture being administered by intramuscular (IM injection in each group: group 1 (G1, control group: 1.0 mL of normal saline solution, group 2 (G2, low-dose group: 0.1 mL, group 3 (G3, mid-dose group: 0.5 mL, and group 4 (G4, high-dose group: 1.0 mL. Results: No mortalities or clinical signs were observed in any group. Also, no significant changes in body weights or in hematological/biochemical analyses were observed between the control and the experimental groups during necropsy or histopathology. Conclusion: The above findings suggest that the lethal dose of Guseonwangdo-go glucose 5% and 20% pharmacopuncture administered via IM injection is more than 1.0 mL per animal in both male and female rats. Further studies on the repeated-dose toxicity of Guseonwangdo-go glucose should be conducted to yield more concrete data.

  10. Salinity and ripening on/off the plant effects on lycopene synthesis and chlorophyll breakdown in hybrid Raf tomato

    NARCIS (Netherlands)

    Sánchez-González, María J.; Schouten, Rob E.; Tijskens, L.M.M.; Cruz Sánchez-Guerrero, M.; Medrano, Evangelina; Rio-Celestino, del Mercedes; Lorenzo, Pilar

    2016-01-01

    The aim of this study was to describe the physiology of fruit colour in tomato as affected by salinity and ripening on and off the plant. Chlorophyll and lycopene levels were repeatedly measured in ninety Raf tomatoes over a period of eight days using remittance spectroscopy. Fruits were subjecte

  11. Assessment of feasible strategies for seasonal underground hydrogen storage in a saline aquifer

    Science.gov (United States)

    Sáinz-García, Alvaro; Abarca, Elena; Rubí, Violeta; Grandia, Fidel

    2017-04-01

    Renewable energies are unsteady, which results in temporary mismatches between demand and supply. The conversion of surplus energy to hydrogen and its storage in geological formations is one option to balance this energy gap. This study evaluates the feasibility of seasonal storage of hydrogen produced from wind power in Castilla-León region (northern Spain). A 3D multiphase numerical model is used to test different extraction well configurations during three annual injection-production cycles in a saline aquifer. Results demonstrate that underground hydrogen storage in saline aquifers can be operated with reasonable recovery ratios. A maximum hydrogen recovery ratio of 78%, which represents a global energy efficiency of 30%, has been estimated. Hydrogen upconing emerges as the major risk on saline aquifer storage. However, shallow extraction wells can minimize its effects. Steeply dipping geological structures are key for an efficient hydrogen storage.

  12. Underground Injection Control (UIC)

    Science.gov (United States)

    Provide information on: individual injection well classes; regulations specific to each well class; technical guidance; compliance assistance; federal, state, and tribal/territory roles and responsibilities.

  13. Ferric Carboxymaltose Injection

    Science.gov (United States)

    ... pharmacist if you are allergic to ferric carboxymaltose injection, ferumoxytol (Feraheme), iron dextran (Dexferrum, Infed), iron sucrose (Venofer), or sodium ferric gluconate (Ferrlecit); any other ...

  14. Piezoelectric Injection Systems

    Science.gov (United States)

    Mock, R.; Lubitz, K.

    The origin of direct injection can be doubtlessly attributed to Rudolf Diesel who used air assisted injection for fuel atomisation in his first self-ignition engine. Although it became apparent already at that time that direct injection leads to reduced specific fuel consumption compared to other methods of fuel injection, it was not used in passenger cars for the moment because of its disadvantageous noise generation as the requirements with regard to comfort were seen as more important than a reduced specific consumption.

  15. Dependence of CO2-Brine Interfacial Tension on Aquifer Pressure, Temperature and Water Salinity

    Science.gov (United States)

    Bachu, S.; Bennion, B.

    2007-12-01

    Carbon dioxide storage in deep saline aquifers is a climate-change mitigation strategy that has significant potential in the short-to-medium term. The displacement of formation water by CO2 (drainage) and of CO2 by invading aquifer brine (imbibition) depend on the interfacial tension (IFT) of the CO2-brine system. To provide needed data, an extensive laboratory program was conducted for the measurement of the interfacial tension between CO2 and water or brine covering the ranges of 2 to 27 MPa pressure, 20°C to 125°C temperature, and 0 to 334,000 mg/l water salinity. The laboratory experiments were conducted using the pendant drop method combined with the Laplace solution for the profile of the brine drop in the CO2-rich environment. The analysis of the resulting set of 294 IFT measurements reveals that: 1) for conditions of constant temperature and water salinity, IFT decreases steeply with increasing pressure in the range PPc, with an asymptotic trend towards a constant value for high pressures; 2) for the same conditions of constant pressure and temperature, IFT increases with increasing water salinity, reflecting decreasing CO2 solubility in brine as salinity increases; 3) the dependence of IFT on temperature is more complex, depending on the CO2 phase. For TTc, with an asymptotic trend towards a constant value for high temperatures. These results indicate that, in the case of CO2 storage in deep saline aquifers, the formation water displacement by injected CO2 during the injection phase of CO2 storage and the CO2 displacement by invading brine during the CO2 migration phase depend on the in-situ conditions of pressure, temperature and water salinity through the effects that these primary variables have on the IFT between CO2 and aquifer brine. Since the IFT of CO2-brine systems affects relative permeability and capillary pressure, it is essential that the in-situ conditions and their effect of secondary variables are properly taken into account when

  16. The function of point injection in improving learning and memory dysfunction caused by cerebral ischemia

    Directory of Open Access Journals (Sweden)

    Chen Hua-De

    2001-02-01

    Full Text Available This experiment has investigated the influence of Yamen (Du. 15 point injection on learning and memory dysfunction caused by cerebral ischemia and reprofusion in bilateral cervical general artery combined with bleeding on mouse tail to mimic vascular dementia in human beings. By dividing 40 mice into 4 groups (group1false operation group, group2model group, group3point injection with Cerebrolysin group4point injection with saline. According to random dividing principles, we observed the influence of Yamen(Du. 15 point injection on the time of swimming the whole course used by model mice which had received treatment for different days in different groups, and the influence of those mice on wrong times they entered blind end. The result showed that point injection with Cerebrolysin and saline could improve learning and memory dysfunction of the mice caused by cerebral ischemia.

  17. Changes in Soil Salinity in the Ekhiin-Gol Oasis (Mongolia) According to Monitoring Data of 1977 and 2001

    Institute of Scientific and Technical Information of China (English)

    E. I. Pankova; D. L. Golovanov

    2005-01-01

    Specific features of soil salinization in the Ekhiin-Gol oasis, one of the largest oasis in the Transaltai Gobi of Mongolia, were first studied in 1977. It was shown that recent hydromorphic solonchaks forming as a result of modern salt accumulation predominate in the soil cover of the oasis. A detailed map of soil salinization was compiled, and specific features of salinization in different soils of oases in the Gobi Desert were studied. In 2001, the soil survey of the oasis was repeated, which made it possible to trace the dynamics of soil salinization within a 25-year-long period. The comparison of the data on the soil salinization in the Ekhiin-Gol oasis obtained in 1977-1978 and 2001 has shown that the main part of the oasis area occupied by hydromorphic solonchaks has not undergone significant changes in the degree and character of soil salinization. The rise in the salinity of the oasis soils is most pronounced in the area of the initially (1977) nonsaline or slightly saline meadow and meadow swamp hydromorphic soils and in the area of the formerly irrigated and then abandoned lands. The rise in the degree of the soil salinization may be caused by both natural factors (a drop in the general water supply of the oasis) and natural-anthropogenic factors (a decrease in the discharge of the springs and a lower amount of water accumulated on the soil surface in the form of icings in the winter seasons). The secondary salinization of the irrigated lands is locally developed. It is probably related to saline rocks underlying the loesslike loam. These rocks become the source of soil salts as a result of irrigation. Secondary salinization is sometimes actively developed upon irrigation with saline water from deep wells within the irrigated lands. The tendency for an increase in the degree of soil salinization may also be related to the plant cover degradation as a result of overgrazing. It leads to the formation of barrens, which enhances the physical evaporation from

  18. Estuarine Salinity Mapping From Airborne Radiometry

    Science.gov (United States)

    Walker, J. P.; Gao, Y.; Cook, P. L. M.; Ye, N.

    2016-12-01

    Estuaries are critical ecosystems providing both ecological habitat and human amenity including boating and recreational fishing. Salinity gradients, caused by the mixing of fresh and salt water, exert an overwhelming control on estuarine ecology and biogeochemistry as well as being a key tracer for model calibration. At present, salinity monitoring within estuaries typically uses point measurements or underway boat-based methods, which makes sensing of localised phenomena such as upwelling of saline bottom water difficult. This study has pioneered the use of airborne radiometry (passive microwave) sensing as a new method to remotely quantify estuarine salinity, allowing rapid production of high resolution surface salinity maps. The airborne radiometry mapping was conducted for the Gippsland Lakes, the largest estuary in Australia, in February, July, October and November of 2015, using the Polarimetric L-band Microwave Radiometer (PLMR). Salinity was retrieved from the brightness temperature collected by PLMR with results validated against boat sampling conducted concurrently with each flight. Results showed that the retrieval accuracy of the radiative transfer model was better than 5 ppt for most flights. The spatial, temporal and seasonal variations of salinity observed in this study are also analysed and discussed.

  19. [Ecophysiological adaptability of tropical water organisms to salinity changes].

    Science.gov (United States)

    Chung, K S

    2001-03-01

    Physiological response of tropical organisms to salinity changes was studied for some marine, estuarine and freshwater fishes (Astyanax bimaculatus, Petenia karussii, Cyprinodon dearborni, and Oreochromis mossambicus), marine and freshwater crustaceans (Penaeus brasiliensis, Penaeus schmitti and Macrobrachium carcinus), and marine bivalves (Perna perna, Crassostrea rhizophorae, and Arca zebra) collected from Northeast Venezuela. They were acclimated for four weeks at various salinities, and (1) placed at high salinities to determine mean lethal salinity, (2) tested by increasing salinity 5@1000 per day to define upper lethal salinity tolerance limit, or (3) observed in a saline gradient tank to determine salinity preference. Acclimation level was the most significant factor. This phenomenon is important for tropical aquatic organisms in shallow waters, where they can adapt to high salinity during the dry season and cannot lose their acclimation level at low salinity during abrupt rain. For saline adaptation of tropical organisms, this behavior will contribute to their proliferation and distribution in fluctuating salinity environments.

  20. Investigation of soil salinity to distinguish boundary line between ...

    African Journals Online (AJOL)

    Investigation of soil salinity to distinguish boundary line between saline and agricultural ... Plain which is one of the important agricultural production centers in the area. Therefore, careful monitoring of lands near salinity boundary in the area ...

  1. Differential Expression of Salinity Resistance Gene on Cotton

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Salinity resistance and differential gene expression associated with salinity in cotton germplasm were studied,because of the large scale area of salinity in China,and its significant negative effects on

  2. Sea-surface salinity: the missing measurement

    Science.gov (United States)

    Stocker, Erich F.; Koblinsky, Chester

    2003-04-01

    Even the youngest child knows that the sea is salty. Yet, routine, global information about the degree of saltiness and the distribution of the salinity is not available. Indeed, the sea surface salinity measurement is a key missing measurement in global change research. Salinity influences circulation and links the ocean to global change and the water-cycle. Space-based remote sensing of important global change ocean parameters such as sea-surface temperature and water-cycle parameters such as precipitation have been available to the research community but a space-based global sensing of salinity has been missing. In July 2002, the National Aeronautical and Space Administration (NASA) announced that the Aquarius mission, focused on the global measurement of sea surface salinity, is one of the missions approved under its ESSP-3 program. Aquarius will begin a risk-reduction phase during 2003. Aquarius will carry a multi-beam 1.4 GHz (L-band) radiometer used for retrieving salinity. It also will carry a 1.2 GHz (L-band) scatterometer used for measuring surface roughness. Aquarius is tentatively scheduled for a 2006 launch into an 8-day Sun-synchronous orbit. Aquarius key science data product will be a monthly, global surface salinity map at 100 km resolution with an accuracy of 0.2 practical salinity units. Aquarius will have a 3 year operational period. Among other things, global salinity data will permit estimates of sea surface density, or buoyancy, that drives the ocean's three-dimensional circulation.

  3. Muscle enhancement using intramuscular injections of oil in bodybuilding

    DEFF Research Database (Denmark)

    Schäfer, Ch. N.; Hvolris, Jørgen Jesper; Karlsmark, Tonny;

    2012-01-01

    by repeated intramuscular injections of anabolic steroids. Conclusions: SEOs cause sclerosing lipogranulomatosis and its progression may lead to lifelong complications. Thorough radiologic evaluation is important to plan surgical revisions in active phases. Also antibiotics, steroids, and compression therapy......BACKGROUND: Self-administered intramuscular injection of site enhancement oil (SEO) is a cosmetic and performance-enhancing procedure used to reshape muscles in the bodybuilder subculture, but its consequences and complications are only sporadically described. Methods: A systematic search...

  4. Intradermal normal saline solution, self-selected music, and insertion difficulty effects on intravenous insertion pain.

    Science.gov (United States)

    Jacobson, A F

    1999-01-01

    To examine the effect of listening to self-selected music versus an intradermal injection of normal saline solution on the intensity and distress of intravenous (IV) catheter insertion pain. Prospective, randomized, controlled study. Inpatient and outpatient units in 2 university-affiliated southwestern medical centers. One hundred ten adult inpatients and outpatients undergoing IV therapy. Pain intensity, pain distress, and IV insertion difficulty visual analog scales. Patients were randomly assigned to receive an intradermal injection of normal saline solution, listen with headphones to self-selected music, or be in a control group for IV insertion. A MANOVA revealed no statistically significant multivariate or univariate differences in pain by treatment group, but significantly higher pain distress scores with failed IV insertions. The pain intensity and distress scores were significantly higher in the saline solution group when compared with the music and control groups combined. Insertion difficulty was significantly positively correlated with pain intensity and distress for the entire sample, with weak, nonsignificant correlations in the music group. Intradermal unpreserved saline solution contributes to greater pain intensity and distress, greater insertion difficulty, and a higher failure rate than the use of music or routine IV insertion. Listening to preferred music attenuates the effect of insertion difficulty on IV insertion pain. Intravenous insertion attempts were unsuccessful in more than one third of the subjects, resulting in higher pain distress scores. Further research is needed on interventions to reduce IV insertion pain and on factors contributing to IV insertion failure.

  5. Salinity and survival of Martesia striata (Linn) in Cochin harbour

    OpenAIRE

    Cheriyan, P.V.; Cherian, C.J.

    1980-01-01

    The effects of salinity variations on the survival of Martesia striata from Cochin harbour are presented. It is observed that at least a few of the animals survive the low saline conditions during monsoon. Laboratory experiments showed the lethal salinity as 6‰ when animals acclimatised in 34‰ were subjected to abrupt changes in salinity. But acclimatisation to 17‰ salinity showed a downward shift in the lethal salinity to 4‰. The present observations indicate that M. striata is euryhaline ar...

  6. Clinical benefit of intra-articular saline as a comparator in clinical trials of knee osteoarthritis treatments

    DEFF Research Database (Denmark)

    Altman, Roy D; Devji, Tahira; Bhandari, Mohit;

    2016-01-01

    OBJECTIVES: Hyaluronic acid and corticosteroids are common intra-articular (IA) therapies widely used for the management of mild to moderate knee osteoarthritis (OA). Many trials evaluating the efficacy of IA administered therapies commonly use IA saline injections as a placebo comparator arm....... Using a systematic review and meta-analysis, our objective was to assess the clinical benefit associated with use of IA saline in trials of IA therapies in the treatment of patients with painful knee OA. METHODS: MEDLINE and Embase databases were searched for articles published up to and including...... in the meta-analysis. Based on data with moderate inconsistency IA saline was found to significantly improve short-term knee pain in 32 studies involving 1705 patients (SMD = -0.68; 95% CI: -0.78 to -0.57; P IA injection...

  7. Management of gonococcal ophthalmia neonatorum with single-dose kanamycin and ocular irrigation with saline.

    Science.gov (United States)

    Latif, A; Mason, P; Marowa, E; Paraiwa, E; Dhamu, F; Tambo, J; Gwanzura, L; Mapeta, D; Jongeling, G

    1988-01-01

    Two hundred nineteen neonates with gonococcal ophthalmia neonatorum, including 40 infected with penicillinase-producing strains, were treated as outpatients with a single intramuscular injection of 100 mg of kanamycin and hourly ocular irrigation with saline. Neisseria gonorrhoeae was isolated from three (1.4%) of the 212 babies attending for follow-up, and post-gonococcal conjunctivitis developed in 22 (10.4%) of those who returned for follow-up.

  8. Geochemistry of hydropressured brines in South Louisiana: potential for reaction with injected geopressured waste waters

    Energy Technology Data Exchange (ETDEWEB)

    Hanor, J.S.; Bebout, D.G.; Bachman, A.L. (eds.)

    1981-01-01

    Hydropressured, saline-water sands are being considered as possible sites for the disposal of geopressured-geothermal waste waters in South Louisiana. Probable injection horizons would most likely contain native brines of 120 to 140 g/l TDS. These brines show wide ranges in concentration of dissolved Ca, Sr, Ba, Fe, SO/sub 4/, and HCO/sub 3/, even within a restricted range of salinities. The probability is high that mineral precipitation will occur if untreated geopressured wastes are mixed with these waters. Clay migration and additional plugging of the injection well is possible if the injected wastes are significantly less saline than the native fluids. Costs of site-specific geochemical evaluation and chemical pre-treatment are thus factors which must be considered in the economic evaluation of deep well disposal of geopressured wastes in South Louisiana.

  9. [Intra-articular injections].

    Science.gov (United States)

    Chapelle, Ch

    2015-09-01

    It is not unusual for a specialist or general practitioner to be presented with a pathology which necessitates the use of an intra-articular injection of corticosteroids, hyaluronic acid or a local anaesthetic. It would seem to be interesting to update and to precise the techniques and methods of intraarticular injections which have appeared in recent international publications, when we know that 30 % of the injections given into the knee and so called "dry" are incorrect and, therefore, inefficient. The indication of an articular injection depends, firstly, on the diagnosis which should be done with great care; after which should be an objective analysis complete with secondary effects linked to both the injection and the product used. The conditions of asepsis, the choice of needles and quantities of the injection and even the ways of the injections should be reviewed in detail. The last studies clearly question the secondary effects of the cartilage degradations of the cortisone given as an intra-articular injection and shows its efficiency on the pain and inflammatory phenomonen in osteoarthritis. Studies on hyaluronic acid are often contradictory going from a modest result to an important pain relief but it is necessary to be aware that the objective criteria are difficult to interpret. The use of local anaesthetics in intra-articular is limited by the few indications in view of the major risk of aggravating the pre-existing lesions by the disappearing signs of pain.

  10. Injection of Deuterium Pellets

    DEFF Research Database (Denmark)

    Sørensen, H.; Andersen, P.; Andersen, S. A.

    1984-01-01

    A pellet injection system made for the TFR tokamak at Fontenay-aux-Roses, Paris is described. 0.12-mg pellets are injected with velocities of around 600-700 m/s through a 5-m long guide tube. Some details of a new light gas gun are given; with this gun, hydrogen pellets are accelerated...

  11. Corticotropin, Repository Injection

    Science.gov (United States)

    H.P. Acthar Gel® ... Corticotropin repository injection comes as a long acting gel to inject under the skin or into a ... prescription and nonprescription medications, vitamins, nutritional supplements, or herbal products you are taking or plan to take. ...

  12. Separably injective Banach spaces

    CERN Document Server

    Avilés, Antonio; Castillo, Jesús M F; González, Manuel; Moreno, Yolanda

    2016-01-01

    This monograph contains a detailed exposition of the up-to-date theory of separably injective spaces: new and old results are put into perspective with concrete examples (such as l∞/c0 and C(K) spaces, where K is a finite height compact space or an F-space, ultrapowers of L∞ spaces and spaces of universal disposition). It is no exaggeration to say that the theory of separably injective Banach spaces is strikingly different from that of injective spaces. For instance, separably injective Banach spaces are not necessarily isometric to, or complemented subspaces of, spaces of continuous functions on a compact space. Moreover, in contrast to the scarcity of examples and general results concerning injective spaces, we know of many different types of separably injective spaces and there is a rich theory around them. The monograph is completed with a preparatory chapter on injective spaces, a chapter on higher cardinal versions of separable injectivity and a lively discussion of open problems and further lines o...

  13. Glucocorticosteroid injection is a circadian zeitgeber in the laboratory rat

    Energy Technology Data Exchange (ETDEWEB)

    Horseman, N.D.; Ehret, C.F.

    1982-09-01

    Intraperitoneal temperatures were monitored by radiotelemetry to observe the thermoregulatory rhythm of male laboratory rats (Rattus norvegicus albinus). Rats received single injections of dexamethasone (as dexamethasone sodium phosphate) during constant darkness (0.1 lx) with food freely available or no food available. No phase shifts occurred following saline injection or dexamethasone at 1 mg/kg body wt. Depending on the phase of injection relative to the circadian cycle, dexamethasone at 10 mg/kg caused thermoregulatory peaks to be either delayed or advanced on the 4th and 5th days after injection. There was an insensitive interval which corresponded to subjective day. Phase shifts induced by dexamethasone during ad libitum feeding were of less magnitude than those induced during starvation. The determination of phase-shifting parameters (i.e., a phase-response curve) for hormonal substances represents a rigorous and broadly applicable technique for determining endogenous mechanisms for circadian phase control and entrainment.

  14. The effect of blood injection for the prevention of Ethanol reflux after intrahepatic Ethanol injection in the rat

    Energy Technology Data Exchange (ETDEWEB)

    Ahn, Kook Jin; Kim, Choon Yul; Kim, Bum Soo; Hahn, Seong Tai; Lee, Jae Mun; Shinn, Kyung Sub [Catholic Univ., College of Medicine, Seoul (Korea, Republic of)

    1998-09-01

    To reduce ethanol reflux from the needle channel by injecting rat blood immediately after the injection of ethanol into rat liver. The first experiment involved 33 rat livers which were divided into four groups (three livers in group 1;ten in groups 2, 3, and 4). Group 1 animals were used as controls, and 0.1ml saline was injected into the liver; in group 2, ethanol-Tc-99m-O{sub 4}- mixed solution (0.1ml, 0.2mCi) was injected into the liver;in groups 3 and 4, the needle channel was blocked with 0.02ml of fresh blood and old blood, respectively, after the injection of ethanol. After removing the needle, a 3cm round filter paper was laid on each injection site to absorb refluxed ethanol-T{sub c}-99m-O{sub 4}- mixed solution from the liver, and each paper was then counted by a gamma camera unit. In the second experiment, 33rats were divided into four groups (three rats in group 1;ten in groups 2, 3, and 4). Group 1 animals were used as controls, and after exposing the left lateral lobe of the liver, 0.05 ml of saline was injected;in group 2, 0.05 ml of ethanol was injected into the livder;in groups 3 and 4 the needle channel was blocked with 0.02 ml of fresh blood and old blood, respectively, after the injection of ethanol. After ten days, peritoneal adhesions were scored macroscopically and microscopically. In the first experiment using ethanol- T{sub c}-99m-O{sub 4}- mixed solution, groups blocked with blood after the injection of mixed solution showed lower gamma counts than the group injected with mixed solution only (p-value=3D0.0002). The group blocked with old blood showed the lowest count. Macroscopical and microscopical examination of peritoneal adhesions indicated that the grade of adhesion was lower in groups blocked with blood than in the group injected with ethanol onluy (p-value=3D0.0261 and 0.0163, respectively). The above results suggest that an injection of blood after an injection of ethanol is a very effective way of preventing reflux from the liver

  15. Uji Asosiasi Bakteri Rhizobium Terseleksi dengan Leguminosa Pakan dalam Kondisi Tercekam Salin

    Directory of Open Access Journals (Sweden)

    Eny Fuskhah

    2014-04-01

    Full Text Available (Test of Association Selected Rhizobium Bacteria with Legumes in Salinity Stress ABSTRACT. The research aim was to investigate association selected rhizobium bacteria with legumes in salinity stress. Plant media was salin soil that have EC = 20.45 mmhos/cm which taken from Morosari beach, Sayung, Demak. Rhizobium isolate applied was tolerant to 12.000 ppm of NaCl that equaled to electrical conductivity of 20 mmhos/cm. The research was carried out in green house of Laboratory of Forage Science Diponegoro University Semarang. The design arranged was completely randomized design with factorial design 2 x 4 in 3 repeatations. First factor was kind of legumes, T1 = lamtoro (Leucaena leucocephala; T2 = turi (Sesbania grandiflora. and second factor was kind of rhizobium isolates, I1 = without isolate; I2 = rhizobium that was isolated from lamtoro, I3 = rhizobium that was isolated from turi; I4 = combination isolate from lamtoro and turi. The crop growth was observed up to 10 weeks of age. The parameters were 1 crops heigh; 2 sum of leaf crops; 3 fresh weight production; 4 dry weight production; 5 amount and fresh weigh of effective root nodules. The study showed the growth and production of turi in saline media of EC 20.45 mmhos/cm was higher than lamtoro. Root nodule of turi was formed, but lamtoro was not. Turi was more tolerant than lamtoro at very saline media.

  16. Uji Asosiasi Bakteri Rhizobium Terseleksi dengan Leguminosa Pakan dalam Kondisi Tercekam Salin

    Directory of Open Access Journals (Sweden)

    Eny Fuskhah

    2014-04-01

    Full Text Available (Test of Association Selected Rhizobium Bacteria with Legumes in Salinity Stress ABSTRACT. The research aim was to investigate association selected rhizobium bacteria with legumes in salinity stress. Plant media was salin soil that have EC = 20.45 mmhos/cm which taken from Morosari beach, Sayung, Demak. Rhizobium isolate applied was tolerant to 12.000 ppm of NaCl that equaled to electrical conductivity of 20 mmhos/cm. The research was carried out in green house of Laboratory of Forage Science Diponegoro University Semarang. The design arranged was completely randomized design with factorial design 2 x 4 in 3 repeatations. First factor was kind of legumes, T1 = lamtoro (Leucaena leucocephala; T2 = turi (Sesbania grandiflora. and second factor was kind of rhizobium isolates, I1 = without isolate; I2 = rhizobium that was isolated from lamtoro, I3 = rhizobium that was isolated from turi; I4 = combination isolate from lamtoro and turi. The crop growth was observed up to 10 weeks of age. The parameters were 1 crops heigh; 2 sum of leaf crops; 3 fresh weight production; 4 dry weight production; 5 amount and fresh weigh of effective root nodules. The study showed the growth and production of turi in saline media of EC 20.45 mmhos/cm was higher than lamtoro. Root nodule of turi was formed, but lamtoro was not. Turi was more tolerant than lamtoro at very saline media.

  17. Fundamental Elements of Geologic C02 Sequestration in Saline Aquifers

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, J W; Nitao, J J; Steefel, C I

    2001-11-19

    Geologic sequestration represents a promising strategy for isolating CO{sub 2} waste streams from the atmosphere. Successful implementation of this approach hinges on our ability to predict the relative effectiveness of subsurface CO{sub 2} migration and sequestration as a function of key target-formation and cap-rock properties, which will enable us to identify optimal sites and evaluate their long-term isolation performance. Quantifying this functional relationship requires a modeling capability that explicitly couples multiphase flow and kinetically controlled geochemical processes. We have developed a unique computational package that meets these criteria, and used it to model CO{sub 2} injection at Statoil's North-Sea Sleipner facility, the world's first saline-aquifer storage site. The package integrates a state-of-the-art reactive transport simulator (NUFT) with supporting geochemical software and databases (SUPCRT92). In our Sleipner study, we have quantified--for the first time--the influence of intra-aquifer shales and aquifer/cap-rock composition on migration/sequestration balance, sequestration partitioning among hydrodynamic, solubility, and mineral trapping mechanisms, and the isolation performance of shale cap rocks. Here, we review the fundamental elements of geologic CO{sub 2} sequestration in saline aquifers as revealed from model XSH of our Sleipner study; this model, unlike CSH and DSH, does not address the complicating (yet advantageous) presence of intra-aquifer shales.

  18. Dimethyl Ether Injection Studies

    DEFF Research Database (Denmark)

    Sorenson, Spencer C.; Glensvig, Michael; Abata, Duane L.

    1998-01-01

    effects of DME in high pressure injection have also been observed. DME has a higher compressibility than diesel fuel, resulting in larger pressure oscillations in the injection system during the injection process. The oscillations with DME also have a slower delay rate than those of diesel fuel......A series of preliminary investigations has been performed in order to investigate the behavior of DME in a diesel injection environment. These studies have in-cluded visual observations of the spray penetration and angles for high pressure injection into Nitrogen using conventional jerk pump...... in the same system. As a first attempt to simulate combustion of DME in Diesel engines, the results of the spray studies have been incorporated into a simplified spray combustion model. A turbulent jet structure was adjusted to fit the penetration rates of the observed sprays. The observed spray widths agreed...

  19. Limitations on quantum key repeaters.

    Science.gov (United States)

    Bäuml, Stefan; Christandl, Matthias; Horodecki, Karol; Winter, Andreas

    2015-04-23

    A major application of quantum communication is the distribution of entangled particles for use in quantum key distribution. Owing to noise in the communication line, quantum key distribution is, in practice, limited to a distance of a few hundred kilometres, and can only be extended to longer distances by use of a quantum repeater, a device that performs entanglement distillation and quantum teleportation. The existence of noisy entangled states that are undistillable but nevertheless useful for quantum key distribution raises the question of the feasibility of a quantum key repeater, which would work beyond the limits of entanglement distillation, hence possibly tolerating higher noise levels than existing protocols. Here we exhibit fundamental limits on such a device in the form of bounds on the rate at which it may extract secure key. As a consequence, we give examples of states suitable for quantum key distribution but unsuitable for the most general quantum key repeater protocol.

  20. Comparison between neurotropin and mepivacaine for stellate ganglion injection.

    Science.gov (United States)

    Nishiyama, Tomoki; Matsukawa, Takashi; Yamashita, Koichi

    2006-01-01

    Neurotropin, a nonproteinaceous extract from the inflamed skin of rabbits inoculated with vaccinia virus, is reported to decrease pain effectively when used for stellate ganglion (SG) injection. We compared the effects of neurotropin SG injection with those of mepivacaine on pain relief, as well as comparing the side effects. One hundred and eighty-eight SG injections in 15 patients (5 with postherpetic neuralgia and 10 with sudden deafness) were performed either with 1% mepivacaine 6 ml or with neurotropin 3 ml combined with saline 3 ml in turn. Fifteen min before and after the injection, the pain score, according to a visual analog scale (VAS; only in patients with postherpetic neuralgia); blood pressure; and heart rate were checked, and the number of procedures with Horner's sign was determined. VAS scores decreased significantly with both injections. Horner's sign was observed on the block side in all procedures with the mepivacaine injection, but it was seen in only 48 procedures with the neurotropin injection. Blood pressure and heart rate did not change. In conclusion, the SG injection of neurotropin decreased the VAS score in postherpetic neuralgia to the same extent as mepivacaine. The incidence of Horner's sign was significantly lower with neurotropin than with mepivacaine.

  1. Hysteresis of magnetostructural transitions: Repeatable and non-repeatable processes

    Energy Technology Data Exchange (ETDEWEB)

    Provenzano, Virgil [National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States); Della Torre, Edward; Bennett, Lawrence H. [Department of Electrical and Computer Engineering, The George Washington University, Washington, DC 20052 (United States); ElBidweihy, Hatem, E-mail: Hatem@gwmail.gwu.edu [Department of Electrical and Computer Engineering, The George Washington University, Washington, DC 20052 (United States)

    2014-02-15

    The Gd{sub 5}Ge{sub 2}Si{sub 2} alloy and the off-stoichiometric Ni{sub 50}Mn{sub 35}In{sub 15} Heusler alloy belong to a special class of metallic materials that exhibit first-order magnetostructural transitions near room temperature. The magnetic properties of this class of materials have been extensively studied due to their interesting magnetic behavior and their potential for a number of technological applications such as refrigerants for near-room-temperature magnetic refrigeration. The thermally driven first-order transitions in these materials can be field-induced in the reverse order by applying a strong enough field. The field-induced transitions are typically accompanied by the presence of large magnetic hysteresis, the characteristics of which are a complicated function of temperature, field, and magneto-thermal history. In this study we show that the virgin curve, the major loop, and sequentially measured MH loops are the results of both repeatable and non-repeatable processes, in which the starting magnetostructural state, prior to the cycling of field, plays a major role. Using the Gd{sub 5}Ge{sub 2}Si{sub 2} and Ni{sub 50}Mn{sub 35}In{sub 15} alloys, as model materials, we show that a starting single phase state results in fully repeatable processes and large magnetic hysteresis, whereas a mixed phase starting state results in non-repeatable processes and smaller hysteresis.

  2. Small-Scale ASR Between Flow Barriers in a Saline Aquifer.

    Science.gov (United States)

    van Ginkel, Marloes; des Tombe, Bas; Olsthoorn, Theo; Bakker, Mark

    2016-11-01

    Regular aquifer storage recovery, ASR, is often not feasible for small-scale storage in brackish or saline aquifers because fresh water floats to the top of the aquifer where it is unrecoverable. Flow barriers that partially penetrate a brackish or saline aquifer prevent a stored volume of fresh water from expanding sideways, thus increasing the recovery efficiency. In this paper, the groundwater flow and mixing is studied during injection, storage, and recovery of fresh water in a brackish or saline aquifer in a flow-tank experiment and by numerical modeling to investigate the effect of density difference, hydraulic conductivity, pumping rate, cyclic operation, and flow barrier settings. Two injection and recovery methods are investigated: constant flux and constant head. Fresh water recovery rates on the order of 65% in the first cycle climbing to as much as 90% in the following cycles were achievable for the studied configurations with constant flux whereas the recovery efficiency was somewhat lower for constant head. The spatial variation in flow velocity over the width of the storage zone influences the recovery efficiency, because it induces leakage of fresh water underneath the barriers during injection and upconing of salt water during recovery.

  3. Effect of intracerebroventricular injection of histamine on blood sugar level and hypothalamo-pituitary adrenal axis of rats.

    Science.gov (United States)

    Trivedi, C P; Modi, N T; Balothia, R K

    1976-01-01

    Intraventricular injection of histamine and normal saline in rats caused a marked fall in adrenal ascorbic acid indicating a stimulatory effect of both on pituitary adrenal axis. Intraventricularly injected histamine caused significant hypoglycaemia also in rats as compared to control series.

  4. SALINITY EFFECT ON SEEDLING GROWTH, WATER, SODIUM ...

    African Journals Online (AJOL)

    AISA

    Key words : Mangrove, Avicennia germinans, salinity, ionic transport, Cameroon. RESUME. EFFET DE LA ... plant structures and physiological features explain their ... concentrations from roots to leaves of A. ..... Trees, 13 : 125 - 130. Sobrado ...

  5. Saline water irrigation of quinoa and chickpea

    DEFF Research Database (Denmark)

    Hirich, A.; Jelloul, A.; Choukr-Allah, R.

    2014-01-01

    A pot experiment was conducted in the south of Morocco to evaluate the response of chickpea and quinoa to different irrigation water salinity treatments (1, 4, 7 and 10 dS m-1 for chickpea and 1, 10, 20 and 30 dS m-1 for quinoa). Increasing salinity affected significantly (P ... and height and caused delay and reduction in seed emergence, quinoa was shown to be more resistant than chickpea. Dry biomass, seed yield, harvest index and crop water productivity were affected significantly (P ... and seed yield for both quinoa and chickpea while increasing salinity resulted in increase - in the case of quinoa - and decrease - in the case of chickpea - in harvest index and crop water productivity. Na+ and Na+/K+ ratio increased with increasing irrigation water salinity, while K+ content decreased...

  6. Flow dynamics in hyper-saline aquifers: hydro-geophysical monitoring and modeling

    Science.gov (United States)

    Haaken, Klaus; Piero Deidda, Gian; Cassiani, Giorgio; Deiana, Rita; Putti, Mario; Paniconi, Claudio; Scudeler, Carlotta; Kemna, Andreas

    2017-03-01

    Saline-freshwater interaction in porous media is a phenomenon of practical interest particularly for the management of water resources in arid and semi-arid environments, where precious freshwater resources are threatened by seawater intrusion and where storage of freshwater in saline aquifers can be a viable option. Saline-freshwater interactions are controlled by physico-chemical processes that need to be accurately modeled. This in turn requires monitoring of these systems, a non-trivial task for which spatially extensive, high-resolution non-invasive techniques can provide key information. In this paper we present the field monitoring and numerical modeling components of an approach aimed at understanding complex saline-freshwater systems. The approach is applied to a freshwater injection experiment carried out in a hyper-saline aquifer near Cagliari (Sardinia, Italy). The experiment was monitored using time-lapse cross-hole electrical resistivity tomography (ERT). To investigate the flow dynamics, coupled numerical flow and transport modeling of the experiment was carried out using an advanced three-dimensional (3-D) density-driven flow-transport simulator. The simulation results were used to produce synthetic ERT inversion results to be compared against real field ERT results. This exercise demonstrates that the evolution of the freshwater bulb is strongly influenced by the system's (even mild) hydraulic heterogeneities. The example also highlights how the joint use of ERT imaging and gravity-dependent flow and transport modeling give fundamental information for this type of study.

  7. Sea Surface Salinity : Research Challenges and Opportunities

    Science.gov (United States)

    Halpern, David; Lagerloef, Gary; Font, Jordi

    2012-01-01

    Sea surface salinity (SSS) can be important in regulating sea surface temperature (SST). Two technological breakthrough satellite SSS missions, Aquarius and Soil Moisture and Ocean Salinity (SMOS), are currently producing high-quality SSS data. This paper provides an overview of the importance of SSS for weather and climate applications and describes the Aquarius and SMOS missions. The newness of adequately sampled SSS data prompted a first-time at-sea field campaign devoted to improved understanding of SSS variations.

  8. Treating nahcolite containing formations and saline zones

    Energy Technology Data Exchange (ETDEWEB)

    Vinegar, Harold J

    2013-06-11

    A method for treating a nahcolite containing subsurface formation includes removing water from a saline zone in or near the formation. The removed water is heated using a steam and electricity cogeneration facility. The heated water is provided to the nahcolite containing formation. A fluid is produced from the nahcolite containing formation. The fluid includes at least some dissolved nahcolite. At least some of the fluid is provided to the saline zone.

  9. Effect of saline loading on uranium-induced acute renal failure in rats

    Energy Technology Data Exchange (ETDEWEB)

    Hishida, A.; Yonemura, K.; Ohishi, K.; Yamada, M.; Honda, N.

    1988-05-01

    Studies were performed to examine the effect of saline loading on uranium-induced acute renal failure (ARF) in rats. Forty-eight hours after the i.v. injection of uranyl acetate (UA, 5 mg/kg), inulin clearance rate (Cin) decreased to approximately 43% of the control value in water drinking rats (P less than 0.005). Animals receiving continuous isotonic saline infusion following UA showed higher urine flow and Cin (60% of control, P less than 0.01), and lessened intratubular cast formation when compared with water-drinking ARF rats. A short-term saline infusion following UA did not attenuate the decline in Cin (43% of control). An inverse relationship was found between Cin and the number of casts (r = -0.75, P less than 0.01). Multiple regression analysis showed that standardized partial regression coefficient is statistically significant between Cin and cast formation (-0.69, P less than 0.05), but not between Cin and tubular necrosis (-0.07, P greater than 0.05). Renin depletion caused by DOCA plus saline drinking did not attenuate the decline in Cin in ARF (47% of control). No significant difference was found in urinary uranium excretion between water-drinking and saline-infused ARF rats. The findings suggest that continuous saline infusion following UA attenuates the decline in Cin in ARF rats; and that this beneficial effect of saline loading is associated with lessened cast formation rather than with suppressed renin-angiotensin activity or enhanced urinary-uranium excretion.

  10. The effect of fluid overload by saline infusion on heart rate variability in men during sleep.

    Science.gov (United States)

    Vena, Daniel; Yadollahi, Azadeh

    2015-01-01

    Fluid shift from the legs and into the neck during sleep has been shown to increase tissue pressure around the upper airway and increase sleep apnea severity. Recently, acute fluid overload via saline infusion during sleep was shown to increase sleep apnea severity in an older men (≥ 40 years of age) but not the younger men (heart rate variability metrics (HRV). Eighteen healthy men (10 in the younger group and 8 in the older group) slept for up to 3 hours during the day while ≈ 2L of saline was intravenously injected during sleep. An electrocardiogram was collected continuously during the sleep period. Two five minute segments of stage 1 or 2 sleep were selected for analysis of HRV: one before saline infusion and one after completion of saline infusion. Time- and frequency domain metrics of HRV were used to characterize autonomic nervous system response. Results generally showed increased HRV as measured by time-domain statistical measures in the younger men after saline infusion. In the frequency domain, the change in high frequency power from pre- to post-saline infusion was significantly greater in the younger compared to the older men. In addition, there was a borderline significant trend showing an increase in HF power from pre- to post-saline infusion in the younger, but not the older men. These results suggest that only in the younger men and not the older men, parasympathetic nervous activity increased in response to acute fluid overload. This might be one of the mechanisms that increased the severity of OSA in older and not the younger men.

  11. PRODUCTION OF TOMATO SEEDLINGS UNDER SALINE IRRIGATION

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Brasiliano Campos

    2007-01-01

    Full Text Available Processing tomato is the most important vegetable crop of the Brazilian agribusiness and few researches have been conducted to evaluate the tolerance of this crop to saline stress. In this study, the effects of five levels of salinity of the irrigation water (1, 2, 3, 4 and 5 dS m-1 and three equivalent proportions of Na:Ca:Mg (1:1:0.5, 4:1:0.5 and 7:1:0.5 were tested on the emergence and vigor of processing tomato, cultivar IPA 6. Seeds were sowed in expanded polystyrene tray (128 cells and each tray received 1 L of water after sowing. The trays were piled and, four days after sowing, they were placed on suspended supports in a greenhouse. Irrigation was accomplished daily from the fifth day after sowing. Only dry weight of shoot and root was affected by sodium proportions, while linear reductions of the speed of emergence, stem length and the dry weight of shoot and root were observed with increasing salinity. Root was more affected than shoot by salinity and relative growth ratioincreased with salinity levels on the 14-21 days after sowing period, indicating that the crop showed a certain increase of salinity tolerance with the time of exposure to salts.

  12. Normal Saline Versus Hypertonic 3% Saline: It’s Efficacy in Non-Acute Rhinosinusitis

    Directory of Open Access Journals (Sweden)

    Nezamoddin Berjis

    2011-01-01

    Full Text Available Introduction: Sinusitis is one of the most common diseases in general and in otolaryngology practice, but the optimal therapeutic options have not yet been fully developed. This manuscript will try to compare normal saline nasal douching with hypertonic saline in reducing symptoms and improving its signs. Materials and Methods: One hundred and fourteen patients suffering from non acute rhinosinusitis, documented by history, physical examination and radiologic studies were divided into normal saline and hypertonic saline groups, each consisting of 57 patients. data were obtained by physical examination and a questionnaire.. Results:  Type of treatment had no significant effect on headache, morning dryness of mouth and pharynx and fatigue. Nontheless, nasal congestion, purulent discharge and postnasal discharge were reported to have improved in the group treated with hypertonic saline versus the normal saline group. Patient satisfaction also showed better scores in the hypertonic saline group. Conclusion: Hypertonic saline (3% is more effective for nasal irrigation  than normal saline in chronic rhinosinusitis.

  13. A Short Non-Saline Sprinkling Increases the Tuber Weights of Saline Sprinkler Irrigated Potatoes

    Directory of Open Access Journals (Sweden)

    Rob M. Stevens

    2017-01-01

    Full Text Available Previous work has shown that a short non-saline sprinkling, following saline sprinkling, increased crop growth. We incorporated this finding into an investigation of two approaches to the conjunctive use of saline and non-saline water sources for sprinkler irrigation of potatoes viz., (i mixing waters prior to application, and (ii keeping waters temporally separate, that is commencing each irrigation with saline water and finishing it with non-saline sprinkling. The latter approach delayed canopy senescence and increased tuber weight by at least 150%. Under both approaches, soil salinities and leaf and tuber concentrations of Na+ and Cl− were similar. Thus, the advantages of a non-saline sprinkling cannot be explained in terms of its effect on either soil osmotic potential or bulk tissue concentrations of putatively toxic ions Na+ and Cl−. We propose that the positive effect of finishing irrigations with a non-saline sprinkling may be attributed to either dilution, and hence increase in osmotic potential, of the water film that remains on the leaf after each irrigation or its effect on the distribution of the putatively toxic ions Na+ and Cl− within tissue.

  14. [Investigation and canonical correspondence analysis of salinity contents in secondary salinization greenhouse soils in Shanghai suburb].

    Science.gov (United States)

    Tang, Dong; Mao, Liang; Zhi, Yue-e; Zhang, Jin-Zhong; Zhou, Pei; Chai, Xiao-Tong

    2014-12-01

    The salinity characteristics of greenhouse soils with cropping obstacles in Shanghai suburb were investigated and analyzed. The salinity contents of the salinization greenhouse soils showed a trend of first increasing and then decreasing with the increasing cropping duration. The salinized soils mainly included slightly salted, mildly salted and salted soils, which accounted for 17.39%, 56.52% and 13.04%, respectively. Among them, the degree of salinity in greenhouse soil planted with asparagus in Chongming County was the highest. Among the salt ions in greenhouse soils, the cations were mainly Ca2+ and Na+, while the anions were mainly NO3- and SO4(2-). The degree of salinity was mainly influenced by fertilization mode, cropping duration, crop type and management level, which led to the great variation in the salinity contents and salt ions. Canonical correspondence analysis found that the contents of Ca2+, Mg2+ and NO3- in greenhouse soils were greatly affected by cropping duration, and the degree of salinity would be enhanced and attenuated with long-term application of single fertilizer and mixed application of chemical fertilizer and organic manure, respectively. The greenhouse soils in Shanghai suburb could be classified as four patterns influenced by the relationship between salinity ions and samples, and the most soils were influenced by Ca2+, Mg2+, NO3- and Cl-, which required to be primarily controlled.

  15. Treatment of esophageal stricture due to lichen planus with intralesional corticosteroid injection.

    Science.gov (United States)

    Köksal, Aydin S; Yildiz, Hakan; Odemiş, Bülent; Sengül, Ayşegül

    2014-02-01

    Herein we presented a male patient with esophageal stricture due to lichen planus successfully treated with repeated injections of intralesional triamcinolone and review the current literature on esophageal lichen planus with special emphasis on its treatment.

  16. EAMJ Dec. Repeatability.indd

    African Journals Online (AJOL)

    2008-12-12

    Dec 12, 2008 ... Results:Kappa values for four-week repeatability for the wheeze and asthma questions were 0.61 ... for logistic, cultural and ethical reasons, to use ... individual with baseline forced expiratory volume in .... period is likely to also include the effects of true ... data, the writing of the manuscript or the decision.

  17. Injection moulding antireflective nanostructures

    DEFF Research Database (Denmark)

    Christiansen, Alexander Bruun; Clausen, Jeppe Sandvik; Mortensen, N. Asger

    in an injection moulding process, to fabricate the antireflective surfaces. The cycle-time was 35 s. The injection moulded structures had a height of 125 nm, and the visible spectrum reflectance of injection moulded black polypropylene surfaces was reduced from 4.5±0.5% to 2.5±0.5%. The gradient of the refractive...... index of the nanostructured surfaces was estimated from atomic force micrographs and the theoretical reflectance was calculated using the transfer matrix method and effective medium theory. The measured reflectance shows good agreement with the theory of graded index antireflective nanostructures...

  18. ALICE Injected Beam Accidents

    CERN Document Server

    Appleby, R B

    2009-01-01

    The ALICE (point 2) interaction region is sensitive to beam orbit errors arising from magnet setting errors on injection. In this report, beam accident scenarios under injection for ALICE are described, focusing on ultra- fast error injection scenarios for the interaction straight correctors and dipoles. Beam 1 and beam 2 accident scenarios are considered, where the errors can lead to beam orbits striking the ALICE vacuum chamber or elements of the machine. The required thresholds for magnet current interlocks are calculated to avoid machine and detector risk.

  19. LHCb Injected Beam Accidents

    CERN Document Server

    Appleby, R B

    2009-01-01

    The LHCb (point 8) interaction region is sensitive to beam orbit errors arising from magnet setting errors on injection. In this report, beam accident scenarios under injection for LHCb are described, focusing on ultra- fast error injection scenarios for the interaction straight correctors and dipoles. Beam 1 and beam 2 accident scenarios are considered, where the errors can lead to beam orbits striking the LHCb vacuum chamber or elements of the machine. The required thresholds for magnet current interlocks are calculated to avoid machine and detector risk.

  20. Yield and yield components of wheat as affected by salinity and inoculation with Azospirillum strains from saline or non-saline soil

    Directory of Open Access Journals (Sweden)

    Somayeh Haji Nia

    2012-06-01

    Full Text Available In many arid and semi-arid areas of the world where sustainability of agriculture is limited by salinity, use of biological potential may be a key component of sustainable plant production. A greenhouse experiment was used to test the effectiveness of inoculation with Azospirillum strains isolated from saline or non-saline soil in alleviating the salinity stress in wheat plants grown with irrigation water with different electrical conductivities (ECw of 0.7, 4, 8 and 12 dS m−1. Inoculation with the two isolates increased salinity tolerance of wheat plants; the saline-adapted isolate significantly increased shoot dry weight and grain yield under severe water salinity. The component of grain yield most affected by inoculation was grains per plant. Plants inoculated with saline-adapted Azospirillum strains had higher N concentrations at all water salinity levels.

  1. Common injections in musculoskeletal medicine.

    Science.gov (United States)

    Monseau, Aaron J; Nizran, Parminder Singh

    2013-12-01

    Musculoskeletal injections are a common procedure in primary care and sports medicine but can be intimidating for some clinicians. This article addresses current evidence for corticosteroid injections, and common injection indications and techniques, namely knee, subacromial bursa, glenohumeral joint, lateral epicondyle, de Quervain tenosynovitis, and greater trochanteric bursa injections. Preparation for injections and some evidence for ultrasound guidance are also reviewed.

  2. Salinity Measurements During the Gulf Stream Experiment

    Science.gov (United States)

    LeVine, D. M.; Koblinsky, C.; Howden, S.; Goodberlet, M.

    2000-01-01

    The salinity of the open ocean is important for understanding ocean circulation, for understanding energy exchange with the atmosphere and for improving models to predict weather and climate. Passive microwave sensors at L-band (1.4 GHz) operating from aircraft have demonstrated that salinity can be measured with sufficient accuracy (1 psu) to be scientifically meaningful in coastal waters. However, measuring salinity in the open ocean presents unresolved issues largely because of the much greater accuracy (approx. 0.1 psu) required to be scientifically viable. In the summer of 1999 a series of measurements called, The Gulf Stream Experiment, were conducted as part of research at the Goddard Space Flight Center to test the potential for passive microwave remote sensing of salinity in the open ocean. The measurements consisted of a compliment of airborne microwave instruments (radiometers and scatterometer) and ships and drifters for surface truth. The study area was a 200 km by 100 km rectangle about 250 km east of Delaware Bay between the continental shelf waters and north wall of the Gulf Stream. The primary passive instruments were the ESTAR radiometer (L-band, H-pol) and the SLFMR radiometer (L-band, V-pol). In addition, the compliment of instruments on the aircraft included a C-band radiometer (ACMR), an ocean wave scatterometer (ROWS) and an infrared radiometer. A GPS backscatter experiment was also part of the package. These instruments were mounted on the NASA P-3 Orion aircraft. Surface salinity measurements were provided by the RN Cape Henlopen and MN Oleander (thermosalinographs) plus salinity and temperature sensors on three surface drifters deployed from the RN Cape Henopen. The primary experiment period was August 26-September 2, 1999. During this period the salinity field within the study area consisted of a gradient on the order of 2-3 psu in the vicinity of the shelf break and a warm core ring with a gradient of 1-2 psu. Detailed maps were made

  3. A COMPARISON OF DEXAMETASONE AND METOCLOPRAMIDE FOR PREVENTING PAIN ON INJECTION OF DIAZEPAM

    Directory of Open Access Journals (Sweden)

    A. Movafegh

    2005-09-01

    Full Text Available Intravenous administration of dexamethasone before diazepam injection seems "0 reduce the incidence or pain on injection. We conducted a randomized. prospective, double-blind. placebocontrolled clinical trial to compare effect or dexamethasone, mctoclopramidc ami placebo in reducing the injection pain.:" total of 120 ASA class I and ll mcn aged 20-45 years that needed more than one intravenous access were enrolled in the study and were randomly allocated to one of the three groups: group 1, :2 ml intravenous normal saline and 2 1111 dexamethasone (X mgj: group 2. 2 1111 intravenous normal saline and 2 1111 mctoclopramidc l10 mg, and group 3.:2 ml intravenous dexamethasone (X mg and 2 ml ructoclopramidc (10 mg. After 30 seconds. I ml diazepam (5 mg was injected simultaneously into each of patients' hand veins and a maximal visual analog scale (VAS for pain of each venous discomfort was assessed separately. In group I. the mean of VAS for pain was significantly less in dexamethasone pretreatment than saline pretreatment. In group 2. the mean of VAS for pain was significantly less in mctoclopramidc pretreatment than saline pretreatment. In group 3, the mean of VAS for pain was significantly less in dexamethasone pretreatment than mctocloprauudc pretreatment. There were no significant differences in incidence of pain between pretreatment and placebo in three groups. Dexamethasone or mctoclopramidc pretreatments arc effective in reducing the severity of pain on injection of diazepam and dexamethasone pretreatment has greater efficacy in reducing the intensity of pain.

  4. Mouse bladder wall injection.

    Science.gov (United States)

    Fu, Chi-Ling; Apelo, Charity A; Torres, Baldemar; Thai, Kim H; Hsieh, Michael H

    2011-07-12

    Mouse bladder wall injection is a useful technique to orthotopically study bladder phenomena, including stem cell, smooth muscle, and cancer biology. Before starting injections, the surgical area must be cleaned with soap and water and antiseptic solution. Surgical equipment must be sterilized before use and between each animal. Each mouse is placed under inhaled isoflurane anesthesia (2-5% for induction, 1-3% for maintenance) and its bladder exposed by making a midline abdominal incision with scissors. If the bladder is full, it is partially decompressed by gentle squeezing between two fingers. The cell suspension of interest is intramurally injected into the wall of the bladder dome using a 29 or 30 gauge needle and 1 cc or smaller syringe. The wound is then closed using wound clips and the mouse allowed to recover on a warming pad. Bladder wall injection is a delicate microsurgical technique that can be mastered with practice.

  5. IncobotulinumtoxinA Injection

    Science.gov (United States)

    ... injected into a muscle, it blocks the nerve signals that cause uncontrollable tightening and movements of the ... any of these symptoms, do not drive a car, operate machinery, or do other dangerous activities.if ...

  6. Amphotericin B Liposomal Injection

    Science.gov (United States)

    ... lining of the spinal cord and brain) and visceral leishmaniasis (a parasitic disease that usually affects spleen, ... complex injection: fever, chills, nausea, vomiting, flushing, back pain with or without chest tightness, chest pain, shortness ...

  7. Buoyancy effects on upward brine displacement caused by CO2 injection

    Energy Technology Data Exchange (ETDEWEB)

    Oldenburg, C.M.; Rinaldi, A.

    2010-01-15

    Upward displacement of brine from deep reservoirs driven by pressure increases resulting from CO{sub 2} injection for geologic carbon sequestration may occur through improperly sealed abandoned wells, through permeable faults, or through permeable channels between pinch-outs of shale formations. The concern about upward brine flow is that, upon intrusion into aquifers containing groundwater resources, the brine may degrade groundwater. Because both salinity and temperature increase with depth in sedimentary basins, upward displacement of brine involves lifting fluid that is saline but also warm into shallower regions that contain fresher, cooler water. We have carried out dynamic simulations using TOUGH2/EOS7 of upward displacement of warm, salty water into cooler, fresher aquifers in a highly idealized two-dimensional model consisting of a vertical conduit (representing a well or permeable fault) connecting a deep and a shallow reservoir. Our simulations show that for small pressure increases and/or high-salinity-gradient cases, brine is pushed up the conduit to a new static steady-state equilibrium. On the other hand, if the pressure rise is large enough that brine is pushed up the conduit and into the overlying upper aquifer, flow may be sustained if the dense brine is allowed to spread laterally. In this scenario, dense brine only contacts the lower-most region of the upper aquifer. In a hypothetical case in which strong cooling of the dense brine occurs in the upper reservoir, the brine becomes sufficiently dense that it flows back down into the deeper reservoir from where it came. The brine then heats again in the lower aquifer and moves back up the conduit to repeat the cycle. Parameter studies delineate steady-state (static) and oscillatory solutions and reveal the character and period of oscillatory solutions. Such oscillatory solutions are mostly a curiosity rather than an expected natural phenomenon because in nature the geothermal gradient prevents the

  8. Hydrogen-Rich Saline Attenuates Acute Renal Injury in Sodium Taurocholate-Induced Severe Acute Pancreatitis by Inhibiting ROS and NF-κB Pathway

    OpenAIRE

    Qiao Shi; Kang-Shu Liao; Kai-Liang Zhao; Wei-Xing Wang; Teng Zuo; Wen-Hong Deng; Chen Chen; Jia Yu; Wen-Yi Guo; Xiao-Bo He; Ablikim Abliz; Peng Wang; Liang Zhao

    2015-01-01

    Hydrogen (H2), a new antioxidant, was reported to reduce •OH and ONOO− selectively and inhibit certain proinflammatory mediators to product, without disturbing metabolic redox reactions or ROS involved in cell signaling. We herein aim to explore its protective effects on acute renal injury in sodium taurocholate-induced acute pancreatitis and its possible mechanisms. Rats were injected with hydrogen-rich saline (HRS group) or normal saline (SO and SAP group) through tail intravenously (6 mL/k...

  9. Dwarf cashew growth irrigated with saline waters

    Directory of Open Access Journals (Sweden)

    Hugo Orlando Carvallo Guerra

    2009-12-01

    Full Text Available The cashew production is one of the most important agricultural activities from the social-economical viewpoint for the North East of Brazil; besides to produce a great deal of hand labor, it is very important as an exporting commodity. The inadequate use of irrigation in the semi arid regions of the North East of Brazil has induced soil salinization and consequently problems for the irrigated agriculture. In spite of this, few works have been conducted to study the effect of saline stress on the growth and development of the cashew. Because of the lack of information for this crop, an experiment was conducted to study the effect of salinity stress on the phytomass production and nutrient accumulation on the different organs of the precocious dwarf cashew (Anacardium occidentale L. clone CCP76. The study was conducted under controlled conditions using as statistical scheme a randomized block design factorial with six replicates. Five salinity treatments were considered for the irrigation water (electrical conductivities of 0.8, 1.6, 2.4, 3.2 and 4.0 dS m-1 at 25oC. The increasing in salinity of the irrigation water reduced the phytomass at different organs of the studied plant. The nitrogen, phosphorus, potassium, chloride and sodium in the plant varied with the salinity of the irrigation water according with the part of the plant analyzed; in some parts increased, in others decreased, in others increased initially and decreased afterwards, and finally, in other part of the plant the salinity of the irrigation water did not affect the nutrient concentration.

  10. PS injection area

    CERN Multimedia

    1974-01-01

    To the right is the PS ring viewed along the direction of the protons. At the left the injection line coming from the 50 MeV Linac 1 (bottom) and going towards the 800 MeV booster, or deflected to the right to be injected directly into straight section 16. The drumlike element behind the (blue) dipole magnet is a 'debuncher' (a 200 MHz cavity). See photos 7409014X and 7409009.

  11. Injection and Dump Systems

    CERN Document Server

    Bracco, C; Barnes, M J; Carlier, E; Drosdal, L N; Goddard, B; Kain, V; Meddahi, M; Mertens, V; Uythoven, J

    2012-01-01

    Performance and failures of the LHC injection and ex- traction systems are presented. In particular, a comparison with the 2010 run, lessons learnt during operation with high intensity beams and foreseen upgrades are described. UFOs, vacuum and impedance problems related to the injection and extraction equipment are analysed together with possible improvements and solutions. New implemented features, diagnostics, critical issues of XPOC and IQC applications are addressed.

  12. Directionality switchable gain stabilized linear repeater

    Science.gov (United States)

    Ota, Takayuki; Ohmachi, Tadashi; Aida, Kazuo

    2004-10-01

    We propose a new approach to realize a bidirectional linear repeater suitable for future optical internet networks and fault location in repeater chain with OTDR. The proposed approach is the linear repeater of simple configuration whose directionality is rearranged dynamically by electrical control signal. The repeater is composed of a magneto-optical switch, a circulator, a dynamically gain stabilized unidirectional EDFA, and control circuits. The repeater directionality is rearranged as fast as 0.1ms by an electrical control pulse. It is experimentally confirmed that OTDR with the directionality switchable repeater is feasible for repeater chain. The detailed design and performance of the repeater are also discussed, including the multi-pass interference (MPI) which may arise in the proposed repeater, the effect of the MPI on SNR degradation of the repeater chain and the feed-forward EDFA gain control circuit.

  13. Preparation and swelling behavior of polyvinyl alcohol physiological saline gel

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Polyvinyl alcohol(PVA) physiological saline gel was prepared using physiological saline solution of the polymer by freezing and thawing method. The influences of the concentration of PVA, freezing and thawing cycle times and solvent swelling media on the swelling properties of PVA saline gel were investigated. The result show that the electrolytical ions have great effect on the swelling behavior of PVA saline gel. The equilibrium swelling ratio of PVA saline gel in aqueous swelling media is larger than that in saline swelling media. Also, the equilibrium swelling ratios of PVA saline gel in aqueous and in saline media decrease with the increase of gel concentration and the increase of freezing and thawing cycle times. The decreasing speed of equilibrium swelling ratio with the increase of freezing and thawing cycle times of PVA gel in distilled water is faster than that in physiological saline. The swelling kinetic equation can sufficiently describe the swelling behavior of PVA physiological saline gel.

  14. Effective method for drug injection into subcutaneous tissue.

    Science.gov (United States)

    Kim, Hyejeong; Park, Hanwook; Lee, Sang Joon

    2017-08-29

    Subcutaneous injection of drug solution is widely used for continuous and low dose drug treatment. Although the drug injections have been administered for a long time, challenges in the design of injection devices are still needed to minimize the variability, pain, or skin disorder by repeated drug injections. To avoid these adverse effects, systematic study on the effects of injection conditions should be conducted to improve the predictability of drug effect. Here, the effects of injection conditions on the drug permeation in tissues were investigated using X-ray imaging technique which provides real-time images of drug permeation with high spatial resolution. The shape and concentration distribution of the injected drug solution in the porcine subcutaneous and muscle tissues are visualized. Dynamic movements of the wetting front (WF) and temporal variations of water contents in the two tissues are quantitatively analyzed. Based on the quantitative analysis of the experimental data, the permeability of drug solution through the tissues are estimated according to permeation direction, injection speed, and tissue. The present results would be helpful for improving the performance of drug injection devices and for predicting the drug efficacy in tissues using biomedical simulation.

  15. A new method to retrieve salinity profiles from sea surface salinity observed by SMOS satellite

    Institute of Scientific and Technical Information of China (English)

    YANG Tingting; CHEN Zhongbiao; HE Yijun

    2015-01-01

    This paper proposes a new method to retrieve salinity profiles from the sea surface salinity (SSS) observed by the Soil Moisture and Ocean Salinity (SMOS) satellite. The main vertical patterns of the salinity profiles are firstly extracted from the salinity profiles measured by Argo using the empirical orthogonal function. To determine the time coefficients for each vertical pattern, two statistical models are developed. In the linear model, a transfer function is proposed to relate the SSS observed by SMOS (SMOS_SSS) with that measured by Argo, and then a linear relationship between the SMOS_SSS and the time coefficient is established. In the nonlinear model, the neural network is utilized to estimate the time coefficients from SMOS_SSS, months and positions of the salinity profiles. The two models are validated by comparing the salinity profiles retrieved from SMOS with those measured by Argo and the climatological salinities. The root-mean-square error (RMSE) of the linear and nonlinear model are 0.08–0.16 and 0.08–0.14 for the upper 400 m, which are 0.01–0.07 and 0.01–0.09 smaller than the RMSE of climatology. The error sources of the method are also discussed.

  16. Lessons from crop plants struggling with salinity.

    Science.gov (United States)

    Cabot, Catalina; Sibole, John V; Barceló, Juan; Poschenrieder, Charlotte

    2014-09-01

    Salinity is a persistent problem, causing important losses in irrigated agriculture. According to global climate change prediction models, salinity is expected to expand in the near future. Although intensive studies have been conducted on the mechanisms by which plants cope with saline conditions, the multi-component nature of salt stress tolerance has rendered most plant breeding efforts to improve the plant's response to salinity unsuccessful. This occurs despite the extensive genetic diversity shown by higher plants for salt tolerance and the similar mechanisms found in salt-sensitive and salt-tolerant genotypes in response to the presence of excess of salts in the growth media. On the other hand, there is an urge to increase crop yield to the maximum to cope with the growing world population demands for food and fuel. Here, we examine some major elements and signaling mechanisms involved in the plant's response to salinity following the pathway of salt-footprints from the soil environment to leaf. Some of the possible contrasting determinants for a better-balanced resource allocation between salt tolerance and plant growth and yield are considered.

  17. Growth of sugar cane varieties under salinity

    Directory of Open Access Journals (Sweden)

    Welson Lima Simões

    2016-04-01

    Full Text Available ABSTRACT Large salty areas in the Brazilian semi-arid region have limited farming in Northeastern Brazil. One example is the sugar cane cultivation, which reinforces the need of selecting varieties that are more tolerant to salinity. The objective of this study was to evaluate the effect of salinity on growth of ten varieties of sugar cane. The experiment was conducted in a greenhouse, set in the experimental field of Embrapa Semiárido, in Petrolina, Pernambuco State. The experimental design was randomized blocks arranged in a 6 X 10 factorial arrangement, comprised of six levels of salinity (0, 1.0, 2.0, 4.0, 6.0 and 8.0 dS m-1 and ten sugar cane varieties (VAT 90212; RB 72454; RB 867515; Q 124; RB 961003; RB 957508; SP791011; RB 835089; RB 92579 and SP 943206. Salt levels of irrigation water were obtained by adding NaCl, CaCl2.2H2O and MgSO4.7H2O to achieve an equivalent ratio among Na:Ca:Mg of 7:2:1. Sixty days later, plant height, stem diameter (base, number of leaves, stalks and sprouts, leaf area and fresh and dry mass of the aerial part and roots were all measured. The varieties of sugar cane showed similar responses for growth reduction as soil salinity increases, being considered moderately sensitive to salinity.

  18. Salinity transfer in bounded double diffusive convection

    CERN Document Server

    Yang, Yantao; Ostilla-Mónico, Rodolfo; Sun, Chao; Verzicco, Roberto; Grossmann, Siegfried; Lohse, Detlef

    2015-01-01

    The double diffusive convection between two parallel plates is numerically studied for a series of parameters. The flow is driven by the salinity difference and stabilized by the thermal field. Our simulations are directly compared to experiments by Hage and Tilgner (\\emph{Phys. Fluids} 22, 076603 (2010)) for several sets of parameters and reasonable agreement is found. This in particular holds for the salinity flux and its dependence on the salinity Rayleigh number. Salt fingers are present in all simulations and extend through the entire height. The thermal Rayleigh number seems to have minor influence on salinity flux but affects the Reynolds number and the morphology of the flow. Next to the numerical calculation, we apply the Grossmann-Lohse theory for Rayleigh-B\\'{e}nard flow to the current problem without introducing any new coefficients. The theory successfully predicts the salinity flux both with respect to the scaling and even with respect to the absolute value for the numerical and experimental res...

  19. Measurement-based quantum repeaters

    CERN Document Server

    Zwerger, M; Briegel, H J

    2012-01-01

    We introduce measurement-based quantum repeaters, where small-scale measurement-based quantum processors are used to perform entanglement purification and entanglement swapping in a long-range quantum communication protocol. In the scheme, pre-prepared entangled states stored at intermediate repeater stations are coupled with incoming photons by simple Bell-measurements, without the need of performing additional quantum gates or measurements. We show how to construct the required resource states, and how to minimize their size. We analyze the performance of the scheme under noise and imperfections, with focus on small-scale implementations involving entangled states of few qubits. We find measurement-based purification protocols with significantly improved noise thresholds. Furthermore we show that already resource states of small size suffice to significantly increase the maximal communication distance. We also discuss possible advantages of our scheme for different set-ups.

  20. A Repeating Fast Radio Burst

    CERN Document Server

    Spitler, L G; Hessels, J W T; Bogdanov, S; Brazier, A; Camilo, F; Chatterjee, S; Cordes, J M; Crawford, F; Deneva, J; Ferdman, R D; Freire, P C C; Kaspi, V M; Lazarus, P; Lynch, R; Madsen, E C; McLaughlin, M A; Patel, C; Ransom, S M; Seymour, A; Stairs, I H; Stappers, B W; van Leeuwen, J; Zhu, W W

    2016-01-01

    Fast Radio Bursts are millisecond-duration astronomical radio pulses of unknown physical origin that appear to come from extragalactic distances. Previous follow-up observations have failed to find additional bursts at the same dispersion measures (i.e. integrated column density of free electrons between source and telescope) and sky position as the original detections. The apparent non-repeating nature of the fast radio bursts has led several authors to hypothesise that they originate in cataclysmic astrophysical events. Here we report the detection of ten additional bursts from the direction of FRB121102, using the 305-m Arecibo telescope. These new bursts have dispersion measures and sky positions consistent with the original burst. This unambiguously identifies FRB121102 as repeating and demonstrates that its source survives the energetic events that cause the bursts. Additionally, the bursts from FRB121102 show a wide range of spectral shapes that appear to be predominantly intrinsic to the source and wh...

  1. Biomarker-based salinity reconstruction immediately prior to the Messinian Salinity Crisis (Sorbas Basin, Spain)

    Science.gov (United States)

    Mayser, Jan Peter; Martins, Cesar; Flecker, Rachel; Pancost, Rich D.

    2014-05-01

    The salinity crisis which occurred in the Mediterranean at the end of the Miocene (5.97 to 5.33 Ma) was a time of large-scale environmental change and thick evaporite deposits formed both in the deep basins and on the surrounding margins. Late Miocene successions in the Sorbas Basin, south east Spain preserve sediments that were deposited immediately prior to the Messinian Salinity Crisis (MSC) and during the initial phase of gypsum precipitation (Sierro et al., 2001). Salinity changes are indicated by evaporite formation and fluctuations in faunal assemblages, but these provide threshold measurements only e.g. gypsum forms at a salinity of 130 psu. By analysing the lipid biomarker composition by GC and HPLC-MS after Soxhlet extraction of pre-MSC sediments we aim to reconstruct granular changes in salinity leading up to initial gypsum precipitation. The pre-MSC sediments comprise regular alternations of marine marls and terrigenous clays with interspersed diatomites. This lithological cyclicity is climatically forced by orbitally-driven changes in insolation (Krijgsman et al., 1999) such that specific lithologies are thought to accumulate during precession minima (homogeneous marls) and maxima (laminated marls). By targeting these lithologies for salinity reconstruction we can evaluate the orbital control on quantified environmental change. The reconstruction of the salinity is predominantly based on the ACE proxy introduced by Turich and Freeman (2011). The GDGT-based proxy can show differences over a wide range of salinity, because Archaea can survive over a much larger salinity range than haptophyte algae or other plankton and can therefore also record the salinity signal over a wider range. This makes it suitable for the broad salinity ranges leading up to the MSC e.g. ~35 to 130 psu. Turich et al. (2011) already have published 10 low resolution salinity values for pre-MSC sediments from Torrente Vaccarizzo and Serra Pirciata on Sicily. Our high resolution

  2. Repeatability of Harris Corner Detector

    Institute of Scientific and Technical Information of China (English)

    HU Lili

    2003-01-01

    Interest point detectors are commonly employed to reduce the amount of data to be processed. The ideal interest point detector would robustly select those features which are most appropriate or salient for the application and data at hand. This paper shows that interest points are geometrically stable under different transformations.This property makes interest points very successful in the context of image matching. To measure this property quantatively, we introduce a evaluation criterion: repeatability rate.

  3. Options for salinity mitigation in the Murray-Darling Basin

    OpenAIRE

    Schrobback, Peggy; Adamson, David; Quiggin, John

    2008-01-01

    The Murray-Darling Basin faces increasing pressure on water quantity and quality. In 2006-07, salt interception schemes implemented as part of the Murray–Darling Basin Salinity Management strategy removed over 470,000 tonnes of salt from the water supply, reducing the salinity of water flowing to Adelaide by about 200 EC units. However, the costs of salinity mitigation schemes are increasing. With possible continuing declines in average inflows, costs of salinity and salinity mitigation are...

  4. Rapid changes in Late Pleistocene precipitation and stream discharge determined from medium- and coarse-grained sediment in saline lakes

    Science.gov (United States)

    Anderson, Roger Y.

    2001-02-01

    Sediment-trapping investigations in Pyramid Lake, Nevada show that medium- to coarse-grained clastic sediments suspended in streamflow after periods of low flow can be transported several kilometers in plumes of freshwater discharged over the surface of a saline lake. Analogous conditions are postulated to explain changes in the abundance of detrital quartz in lake clay near the center of Estancia Basin, New Mexico during the Late Pleistocene. Abrupt increases in the abundance of quartz grains mark the onset of lake freshening, and ostracode and trace-metal proxies for salinity indicate repeated, brief episodes of streamflow and lake freshening during the Last Glacial Maximum (LGM).

  5. Changes in Activity of the Same Thalamic Neurons to Repeated Nociception in Behaving Mice.

    Science.gov (United States)

    Huh, Yeowool; Cho, Jeiwon

    2015-01-01

    The sensory thalamus has been reported to play a key role in central pain sensory modulation and processing, but its response to repeated nociception at thalamic level is not well known. Current study investigated thalamic response to repeated nociception by recording and comparing the activity of the same thalamic neuron during the 1st and 2nd formalin injection induced nociception, with a week interval between injections, in awake and behaving mice. Behaviorally, the 2nd injection induced greater nociceptive responses than the 1st. Thalamic activity mirrored these behavioral changes with greater firing rate during the 2nd injection. Analysis of tonic and burst firing, characteristic firing pattern of thalamic neurons, revealed that tonic firing activity was potentiated while burst firing activity was not significantly changed by the 2nd injection relative to the 1st. Likewise, burst firing property changes, which has been consistently associated with different phases of nociception, were not induced by the 2nd injection. Overall, data suggest that repeated nociception potentiated responsiveness of thalamic neurons and confirmed that tonic firing transmits nociceptive signals.

  6. Multiple collagenase injections are safe for treatment of Dupuytren's contractures.

    Science.gov (United States)

    Gajendran, Varun K; Hentz, Vincent; Kenney, Deborah; Curtin, Catherine M

    2014-07-01

    The authors report the case of a 65-year-old, right-hand-dominant man who had severe Dupuytren's disease with multiple cords and flexion contractures of the metacarpophalangeal and proximal interphalangeal joints of both hands and underwent repeated collagenase injections for treatment. Collagenase has been shown to be safe and effective in the treatment of Dupuytren's contractures when administered as a single dose, but the results of multiple injections over a prolonged period are unknown. Antibodies to collagenase develop in all patients after several treatments, raising concerns about safety and efficacy as a result of sensitization from repeated exposures. The antibodies generated as a result of repeated exposure to collagenase could theoretically render it less effective with time and could also lead to immune reactions as severe as anaphylaxis. The authors present the case of a single patient who experienced continued correction of his contractures with only minor and self-limited adverse reactions after administration of 12 collagenase doses through 15 injections during a 4-year period. Over time, the injections continued to be effective at correcting metacarpophalangeal joint contractures, but less effective at correcting proximal interphalangeal joint contractures. The patient did eventually require a fasciectomy, but the safety and modest success of the repeated collagenase injections shows promise for a less invasive treatment with a better risk profile than open fasciectomy. Although further studies are needed, repeated administration of collagenase appears to be safe and modestly effective for severe Dupuytren's contractures, although a fasciectomy may ultimately be required in the most severe cases.

  7. Hypertonic 3% Saline in Comparison with 0.9% (Normal Saline in Treatment of Acute Bronchiolitis

    Directory of Open Access Journals (Sweden)

    Abdul-karem Jasem Mohammed Al-bahadily

    2017-01-01

    Full Text Available BackgroundBronchiolitis is the commonest cause of lower respiratory tract infection in infant. Respiratory syncytial virus is the commonest cause of bronchiolitis. This study aimed to assess the efficacy of nebulized 3% hypertonic saline and salbutamol in the treatment of acute bronchiolitis in comparison with nebulized 0.9% saline and salbutamol.Materials and MethodsA prospective case second multicenter study was done at two pediatric tertiary centers at the period from 1st of December 2014 to 31 of March 2015. A total of 100 previously well infant and children of age 1-24 months with clinical diagnoses of bronchiolitis who were admitted to the hospital were included. They were divided into two groups, the study group received 4 ml of nebulized hypertonic 3% saline (for 14 days, and second group received 4 ml of nebulized normal 0.9% saline (for 14 days, each co-administer with 0.5 ml salbutamol.ResultsAll patients with acute bronchiolitis having similar baseline characteristic, mean age 4.9 + Standard deviation (SD months, male gender constitutes 68% of the patients and the majority (67% of the cases were below 6 months. The mean of clinical severity score at admission was 6.4 for normal saline (NS group and 6.6 for hypertonic 3% saline (HS group. The mean length of hospital stay of normal saline group = 4.3 + Standard deviation (SD day and for hypertonic saline group was = 4.7 + Standard deviation (SD day.ConclusionWe didn’t find any advantage of hypertonic 3% saline over 0.9% normal saline in terms of length of hospital stay and clinical severity score.

  8. Analysis of the repeatability of time-lapse 3d vsp multicomponent surveys, delhi field

    Science.gov (United States)

    Carvalho, Mariana Fernandes de

    Delhi Field is a producing oil field located in northeastern Louisiana. In order to monitor the CO2 sweep efficiency, time-lapse 3D seismic data have been acquired in this area. Time-lapse studies are increasingly used to evaluate changes in the seismic response induced by the production of hydrocarbons or the injection of water, CO2 or steam into a reservoir. A 4D seismic signal is generated by a combination of production and injection effects within the reservoir as well as non-repeatability effects. In order to get reliable results from time-lapse seismic methods, it is important to distinguish the production and injection effects from the non-repeatability effects in the 4D seismic signal. Repeatability of 4D land seismic data is affected by several factors. The most significant of them are: source and receiver geometry inaccuracies, differences in seismic sources signatures, variations in the immediate near surface and ambient non-repeatable noise. In this project, two 3D multicomponent VSP surveys acquired in Delhi Field were used to quantify the relative contribution of each factor that can affect the repeatability in land seismic data. The factors analyzed in this study were: source and receiver geometry inaccura- cies, variations in the immediate near surface and ambient non-repeatable noise. This study showed that all these factors had a significant impact on the repeatability of the successive multicomponent VSP surveys in Delhi Field. This project also shows the advantages and disadvantages in the use of different repeata- bility metrics, normalized-root-mean-square (NRMS) difference and signal-to-distortion ratio (SDR) attribute, to evaluate the level of seismic repeatability between successive time-lapse seismic surveys. It is observed that NRMS difference is greatly influenced by time-shifts and that SDR attribute combined with the time-shift may give more distinct and representative repeatability information than the NRMS difference.

  9. Electromagnetic simulations for salinity index error estimation

    Science.gov (United States)

    Wilczek, Andrzej; Szypłowska, Agnieszka; Kafarski, Marcin; Nakonieczna, Anna; Skierucha, Wojciech

    2017-01-01

    Soil salinity index (SI) is a measure of salt concentration in soil water. The salinity index is calculated as a partial derivative of the soil bulk electrical conductivity (EC) with respect to the bulk dielectric permittivity (DP). The paper focused on the impact of different sensitivity zones for measured both EC and DP on the salinity index determination accuracy. For this purpose, a set of finite difference time domain (FDTD) simulations was prepared. The simulations were carried out on the model of a reflectometric probe consisting of three parallel rods inserted into a modelled material of simulated DP and EC. The combinations of stratified distributions of DP and EC were tested. An experimental verification of the simulation results on selected cases was performed. The results showed that the electromagnetic simulations can provide useful data to improve accuracy of the determination of soil SI.

  10. Bleeding gastric varices: Results of endoscopic injection with cyanoacrylate at King Chulalongkorn Memorial Hospital

    Institute of Scientific and Technical Information of China (English)

    Phadet Noophun; Pradermchai Kongkam; Sutep Gonlachanvit; Rungsun Rerknimitr

    2005-01-01

    AIM: To evaluate the efficacy and safety of gastric varices injection with cyanoacrylate in patients with gastric variceal bleeding.METHODS: Twenty-four patients (15 males, 9 females) with gastric variceal bleeding underwent endoscopic treatment with cyanoacrylate injection. Successful hemostasis, rebleeding rate, and complications were retrospectively reviewed. Followed up endoscopy was performed and repeat cyanoacrylate injection was given until gastric varices were obliterated. RESULTS: Seventeen patients achieved definite hemostasis. Of these, 14 patients had primary success after initial endoscopic therapy. Ten patients developed recurrent bleeding. Repeated cyanoacrylate injection stopped rebleeding in three patients. Transjugular intrahepatic portosystemic shunt (TIPS) was performed to control rebleeding in one patient which occured after repeat endoscopic therapy. Six patients died (three from uncontrolled bleeding, two from sepsis, and one from mesenteric vein thrombosis). Minor complications occurred in 11 patients (six epigastric discomfort and five post injection ulcers). Cyanoacrylate embolism developed in two patients. One of these patients died from mesenteric vein thrombosis. The other had pulmonary embolism which resolved spontaneously. Advanced cirrhosis and hepatocellular carcinoma (HCC) were major risk factors for uncontrolled bleeding.CONCLUSION: Endoscopic treatment for bleeding gastric varices with cyanoacrylate injection is effective for immediate hemostasis. Repeat cyanoacrylate injection has a lower success rate than the initial injection.Cyanoacrylate embolism is not a common serious complication.

  11. Syringe-injectable electronics.

    Science.gov (United States)

    Liu, Jia; Fu, Tian-Ming; Cheng, Zengguang; Hong, Guosong; Zhou, Tao; Jin, Lihua; Duvvuri, Madhavi; Jiang, Zhe; Kruskal, Peter; Xie, Chong; Suo, Zhigang; Fang, Ying; Lieber, Charles M

    2015-07-01

    Seamless and minimally invasive three-dimensional interpenetration of electronics within artificial or natural structures could allow for continuous monitoring and manipulation of their properties. Flexible electronics provide a means for conforming electronics to non-planar surfaces, yet targeted delivery of flexible electronics to internal regions remains difficult. Here, we overcome this challenge by demonstrating the syringe injection (and subsequent unfolding) of sub-micrometre-thick, centimetre-scale macroporous mesh electronics through needles with a diameter as small as 100 μm. Our results show that electronic components can be injected into man-made and biological cavities, as well as dense gels and tissue, with >90% device yield. We demonstrate several applications of syringe-injectable electronics as a general approach for interpenetrating flexible electronics with three-dimensional structures, including (1) monitoring internal mechanical strains in polymer cavities, (2) tight integration and low chronic immunoreactivity with several distinct regions of the brain, and (3) in vivo multiplexed neural recording. Moreover, syringe injection enables the delivery of flexible electronics through a rigid shell, the delivery of large-volume flexible electronics that can fill internal cavities, and co-injection of electronics with other materials into host structures, opening up unique applications for flexible electronics.

  12. Syringe injectable electronics

    Science.gov (United States)

    Hong, Guosong; Zhou, Tao; Jin, Lihua; Duvvuri, Madhavi; Jiang, Zhe; Kruskal, Peter; Xie, Chong; Suo, Zhigang; Fang, Ying; Lieber, Charles M.

    2015-01-01

    Seamless and minimally-invasive three-dimensional (3D) interpenetration of electronics within artificial or natural structures could allow for continuous monitoring and manipulation of their properties. Flexible electronics provide a means for conforming electronics to non-planar surfaces, yet targeted delivery of flexible electronics to internal regions remains difficult. Here, we overcome this challenge by demonstrating syringe injection and subsequent unfolding of submicrometer-thick, centimeter-scale macroporous mesh electronics through needles with a diameter as small as 100 micrometers. Our results show that electronic components can be injected into man-made and biological cavities, as well as dense gels and tissue, with > 90% device yield. We demonstrate several applications of syringe injectable electronics as a general approach for interpenetrating flexible electronics with 3D structures, including (i) monitoring of internal mechanical strains in polymer cavities, (ii) tight integration and low chronic immunoreactivity with several distinct regions of the brain, and (iii) in vivo multiplexed neural recording. Moreover, syringe injection enables delivery of flexible electronics through a rigid shell, delivery of large volume flexible electronics that can fill internal cavities and co-injection of electronics with other materials into host structures, opening up unique applications for flexible electronics. PMID:26053995

  13. Adaptation of teleosts to very high salinity

    DEFF Research Database (Denmark)

    Laverty, Gary; Skadhauge, Erik

    2012-01-01

    A number of species of euryhaline teleosts have the remarkable ability to adapt and survive in environments of extreme salinity, up to two or even three times the osmolality of seawater. This review looks at some of the literature describing the adaptive changes that occur, primarily with intesti......A number of species of euryhaline teleosts have the remarkable ability to adapt and survive in environments of extreme salinity, up to two or even three times the osmolality of seawater. This review looks at some of the literature describing the adaptive changes that occur, primarily...

  14. Origin and fate of repeats in bacteria.

    Science.gov (United States)

    Achaz, G; Rocha, E P C; Netter, P; Coissac, E

    2002-07-01

    We investigated 53 complete bacterial chromosomes for intrachromosomal repeats. In previous studies on eukaryote chromosomes, we proposed a model for the dynamics of repeats based on the continuous genesis of tandem repeats, followed by an active process of high deletion rate, counteracted by rearrangement events that may prevent the repeats from being deleted. The present study of long repeats in the genomes of Bacteria and Archaea suggests that our model of interspersed repeats dynamics may apply to them. Thus the duplication process might be a consequence of very ancient mechanisms shared by all three domains. Moreover, we show that there is a strong negative correlation between nucleotide composition bias and the repeat density of genomes. We hypothesise that in highly biased genomes, non-duplicated small repeats arise more frequently by random effects and are used as primers for duplication mechanisms, leading to a higher density of large repeats.

  15. Dispersive liquid-liquid microextraction for the determination of phenols by acetonitrile stacking coupled with sweeping-micellar electrokinetic chromatography with large-volume injection.

    Science.gov (United States)

    He, Hui; Liu, Shuhui; Meng, Zhaofu; Hu, Shibing

    2014-09-26

    The current routes to couple dispersive liquid-liquid microextraction (DLLME) with capillary electrophoresis (CE) are evaporation of water immiscible extractants and backextraction of analytes. The former is not applicable to extractants with high boiling points, the latter being effective only for acidic or basic analytes, both of which limit the further application of DLLME-CE. In this study, with 1-octanol as a model DLLME extractant and six phenols as model analytes, a novel method based on acetonitrile stacking and sweeping is proposed to accomplish large-volume injection of 1-octanol diluted with a solvent-saline mixture before micellar electrokinetic chromatography. Brij-35 and β-cyclodextrin were employed as pseudostationary phases for sweeping and also for improving the compatibility of sample zone and aqueous running buffer. A short solvent-saline plug was used to offset the adverse effect of the water immiscible extractant on focusing efficiency. The key parameters affecting separation and concentration were systematically optimized; the effect of Brij-35 and 1-octanol on focusing mechanism was discussed. Under the optimized conditions, with ∼ 30-fold concentration enrichment by DLLME, the diluted extractant (8×) was then injected into the capillary with a length of 21 cm (42% of the total length), which yielded the overall improvements in sensitivity of 170-460. Limits of detection and qualification ranged from 0.2 to 1.0 ng/mL and 1.0 to 3.4 g/mL, respectively. Acceptable repeatability lower than 3.0% for migration time and 9.0% for peak areas were obtained. The developed method was successfully applied for analysis of the phenol pollutants in real water samples.

  16. The nature of plerions surrounding soft gamma-ray repeaters

    CERN Document Server

    Harding, A K

    1995-01-01

    Compact steady sources of X-ray emission have been detected at the positions of at least two soft gamma-ray repeaters (SGRs). These sources have been interpreted as synchrotron nebulae powered by the neutron star that is causing the bursts. We explore a plerion model for the sources surrounding SGRs where the steady observed emission is powered by the SGR bursts rather than by the spin-down of a pulsar. In this case there is no limit on the neutron star magnetic field. We find that the synchrotron lifetime of the particles injected into the plerion around SGR1806-20 is long enough to smear out nebular emission from individual bursts. Transient nebular emission would therefore not be detected following an SGR burst. The combined radio emission from multiple burst injections is expected to have a steeper spectrum than that of a typical plerion.

  17. Genetic diversity and association mapping for salinity tolerance in Bangladeshi rice landraces

    Institute of Scientific and Technical Information of China (English)

    Reza M Emon; Mirza M Islam; Jyotirmoy Halder; Yeyang Fan

    2015-01-01

    Breeding for salinity tolerance using Bangladeshi rice landraces and understand genetic diversity has been limited by the complex and polygenic nature of salt tolerance in rice genotypes. A genetic diversity and association mapping analysis was conducted using 96 germplasm accessions with variable response to salt stress at the seedling stage. These included 86 landraces and 10 indica varieties and lines including Nona Bokra, from southern Bangladesh. A total of 220 alleles were detected at 58 Simple Sequence Repeat (SSR) marker loci randomly distributed on all 12 rice chromosomes and 8 Sequence Tagged Site (STS) markers developed for genes SKC1, DST, and SalT. The average gene diversity was 0.5075 and polymorphism information content value was 0.4426, respectively. Cluster analysis revealed that 68 and 21 accessions were clustered into 2 distinct groups, possibly corresponding to indica and japonica groups, respectively and the remaining 7 landraces were classified as an admixed group. In addition to Wn11463, the STS marker for SKC1, RM22418 on Chr. 8 was significantly associated with salinity tolerance, at the location of a QTL detected in previous studies. Our findings of favorable alleles associated with salinity tolerance in Bangladeshi rice landraces, as well as the development of STS markers for salt tolerance genes, will be helpful in future efforts to breed salinity tolerance in rice.

  18. Genetic diversity and association mapping for salinity tolerance in Bangladeshi rice landraces

    Institute of Scientific and Technical Information of China (English)

    Reza; M.Emon; Mirza; M.Islam; Jyotirmoy; Halder; Yeyang; Fan

    2015-01-01

    Breeding for salinity tolerance using Bangladeshi rice landraces and understand genetic diversity has been limited by the complex and polygenic nature of salt tolerance in rice genotypes. A genetic diversity and association mapping analysis was conducted using 96 germplasm accessions with variable response to salt stress at the seedling stage. These included86 landraces and 10 indica varieties and lines including Nona Bokra, from southern Bangladesh. A total of 220 alleles were detected at 58 Simple Sequence Repeat(SSR) marker loci randomly distributed on all 12 rice chromosomes and 8 Sequence Tagged Site(STS) markers developed for genes SKC1, DST, and SalT. The average gene diversity was 0.5075 and polymorphism information content value was 0.4426, respectively. Cluster analysis revealed that 68 and 21 accessions were clustered into 2 distinct groups, possibly corresponding to indica and japonica groups, respectively and the remaining 7 landraces were classified as an admixed group. In addition to Wn11463, the STS marker for SKC1, RM22418 on Chr. 8 was significantly associated with salinity tolerance, at the location of a QTL detected in previous studies. Our findings of favorable alleles associated with salinity tolerance in Bangladeshi rice landraces, as well as the development of STS markers for salt tolerance genes, will be helpful in future efforts to breed salinity tolerance in rice.

  19. Soil Salinity: Effect on Vegetable Crop Growth. Management Practices to Prevent and Mitigate Soil Salinization

    Directory of Open Access Journals (Sweden)

    Rui Manuel Almeida Machado

    2017-05-01

    Full Text Available Salinity is a major problem affecting crop production all over the world: 20% of cultivated land in the world, and 33% of irrigated land, are salt-affected and degraded. This process can be accentuated by climate change, excessive use of groundwater (mainly if close to the sea, increasing use of low-quality water in irrigation, and massive introduction of irrigation associated with intensive farming. Excessive soil salinity reduces the productivity of many agricultural crops, including most vegetables, which are particularly sensitive throughout the ontogeny of the plant. The salinity threshold (ECt of the majority of vegetable crops is low (ranging from 1 to 2.5 dS m−1 in saturated soil extracts and vegetable salt tolerance decreases when saline water is used for irrigation. The objective of this review is to discuss the effects of salinity on vegetable growth and how management practices (irrigation, drainage, and fertilization can prevent soil and water salinization and mitigate the adverse effects of salinity.

  20. Improving repeatability by improving quality

    Energy Technology Data Exchange (ETDEWEB)

    Ronen, Shuki; Ackers, Mark; Schlumberger, Geco-Prakla; Brink, Mundy

    1998-12-31

    Time lapse (4-D) seismic is a promising tool for reservoir characterization and monitoring. The method is apparently simple: to acquire data repeatedly over the same reservoir, process and interpret the data sets, then changes between the data sets indicate changes in the reservoir. A problem with time lapse seismic data is that reservoirs are a relatively small part of the earth and important reservoir changes may cause very small differences to the time lapse data. The challenge is to acquire and process economical time lapse data such that reservoir changes can be detected above the noise of varying acquisition and environment. 7 refs., 9 figs.

  1. Coordinated hybrid automatic repeat request

    KAUST Repository

    Makki, Behrooz

    2014-11-01

    We develop a coordinated hybrid automatic repeat request (HARQ) approach. With the proposed scheme, if a user message is correctly decoded in the first HARQ rounds, its spectrum is allocated to other users, to improve the network outage probability and the users\\' fairness. The results, which are obtained for single- and multiple-antenna setups, demonstrate the efficiency of the proposed approach in different conditions. For instance, with a maximum of M retransmissions and single transmit/receive antennas, the diversity gain of a user increases from M to (J+1)(M-1)+1 where J is the number of users helping that user.

  2. Design and validation of a simulator for equine joint injections.

    Science.gov (United States)

    Fox, Victoria; Sinclair, Charlotte; Bolt, David M; Lowe, John; Weller, Renate

    2013-01-01

    Joint injections are commonly used in equine practice for diagnosis and treatment of joint disorders. Performing joint injections is hence an essential skill for equine practitioners. However, opportunities for veterinary students to practice this skill are often scarce in veterinary curricula. The aim of this study was to design and validate an equine joint injection simulator. We hypothesized that the simulator will enhance student ability and confidence in performing joint injections. The simulator was constructed around an equine forelimb skeleton with soft tissues rebuilt using building foam and rubber bands. An electrical circuit including a buzzer, a battery, wire wool in the joints, and a hypodermic needle at the end of the cable was incorporated. If the students placed the needle into the joint correctly, instant auditory feedback was provided by the buzzer. To validate the simulator, 45 veterinary students were allocated to three groups: cadaver limb, textbook, or simulator. Students' ability to perform joint injections was tested and students' opinions were evaluated with a questionnaire. The proportion of students performing a metacarpophalangeal (MCP) joint injection correctly was significantly higher in the cadaver (93%) and simulator (76%) groups compared to the textbook group (50%). There was no significant difference between groups for performing a distal interphalangeal (DIP) joint injection correctly. Students rated the learning experience with the cadaver and simulator group high and with the textbook group low. The joint injection simulator represents an affordable teaching aid that allows students to repeatedly practice this skill in their own time with immediate feedback.

  3. Investigations in Marine Chemistry: Salinity I.

    Science.gov (United States)

    Schlenker, Richard M.

    Presented is a unit designed for curriculum infusion and which relies on the hands-on discovery method as an instructive device. The student is introduced to the theory of a functioning salt water conductivity meter. The student explores the resistance of salt water as salinity increases and he treats the data which he has gathered,…

  4. Evaluation of lettuce genotypes for salinity tolerance

    Science.gov (United States)

    Lettuce is one of the most commonly used salad vegetables and considered to be a relatively salt sensitive crop. Salinity is a major constraint to crop production in all important lettuce districts of the U.S., and the water quality problem is exacerbated by the climate change. In order to identify ...

  5. ASSESSING THE IMPACTS OF SALINITY AND NUTRIENT ...

    Science.gov (United States)

    Healthy seagrass beds were once found throughout the shallow areas of Narragansett Bay, R.I. but have disappeared due to infilling, pollution and disease. In Greenwich Bay, a highly developed embayment within Narragansett Bay, Ruppia maritima has colonized an area on the northern shore once dominated by Zostera marina. This area is sandy, which may allow groundwater seepage. Ruppia is extremely salinity tolerant, and may also be more nutrient tolerant than Zostera. A six week microcosm experiment at two salinity (20 and 30 ppt) and 4 nutrient (0, 5, 10, and 30 µM inorganic N) levels to test their relative tolerance was conducted in 2014. Treatments were renewed daily to simulate tidal flushing and the exposure water was dosed with 15N for the first week of the experiment. At the end of the experiment, the plants were weighed and measured, and dried for later isotopic analysis. In the first experiment, Ruppia had significant structural responses to both nutrients and salinity; there was a slight decline in root weight and a decrease in the total number of shoots with increasing nutrients. Average Ruppia blade length decreased with increasing nutrients and this decrease was more evident at 30 ppt. In contrast, Zostera had no significant structural differences. For both species, there were no differences in shoot or root/rhizome weights in any treatment, nor were there differences in isotopic results due to salinity. However, δ15N in the tissue increase

  6. Biomass production on saline-alkaline soils

    Energy Technology Data Exchange (ETDEWEB)

    Chaturvedi, A.N.

    1985-01-01

    In a trial of twelve tree species (both nitrogen fixing and non-fixing) for fuel plantations on saline-alkaline soil derived from Gangetic alluvium silty clay, Leucaena leucocephala failed completely after showing rapid growth for six months. Results for other species at age two showed that Prosopis juliflora had the best productivity.

  7. Estimation of salinity power potential in India

    Digital Repository Service at National Institute of Oceanography (India)

    Das, V.K.; RamaRaju, D.V.

    at the estuaries where freshwater flows into the sea or wherever sources of different salinities exist. In India, the total freshwater discharge from rivers and streams flowing into the seas around amounts to about 23 x 103 m3/sec which could provide a power...

  8. CROP DENSITY AND IRRIGATION WITH SALINE WATER

    OpenAIRE

    Feinerman, Eli

    1983-01-01

    The economic implications of plant density for irrigation water use under saline conditions are investigated, utilizing the involved physical and biological relationships. The analysis considers a single crop and is applied to cotton data. The results suggest that treating plant density as an endogenous control variable has substantial impact on profits and the optimal quantities and qualities of the applied irrigation water.

  9. Environmental geophysics mapping salinity and water resources

    NARCIS (Netherlands)

    Dent, D.

    2007-01-01

    Salinity and fresh water are two sides of the same coin, most conveniently measured by electrical conductivity; they can now be mapped rapidly in three dimensions using airborne electromagnetics (AEM). Recent developments in the calibration of airborne data against in-field measurements and

  10. About uncertainties in practical salinity calculations

    Directory of Open Access Journals (Sweden)

    M. Le Menn

    2009-10-01

    Full Text Available Salinity is a quantity computed, in the actual state of the art, from conductivity ratio measurements, knowing temperature and pressure at the time of the measurement and using the Practical Salinity Scale algorithm of 1978 (PSS-78 which gives practical salinity values S. The uncertainty expected on PSS-78 values is ±0.002, but nothing has ever been detailed about the method to work out this uncertainty, and the sources of errors to include in this calculation. Following a guide edited by the Bureau International des Poids et Mesures (BIPM, this paper assess, by two independent methods, the uncertainties of salinity values obtained from a laboratory salinometer and Conductivity-Temperature-Depth (CTD measurements after laboratory calibration of a conductivity cell. The results show that the part due to the PSS-78 relations fits is sometimes as much significant as the instruments one's. This is particularly the case with CTD measurements where correlations between the variables contribute to decrease largely the uncertainty on S, even when the expanded uncertainties on conductivity cells calibrations are largely up of 0.002 mS/cm. The relations given in this publication, and obtained with the normalized GUM method, allow a real analysis of the uncertainties sources and they can be used in a more general way, with instruments having different specifications.

  11. Cuticle hydrocarbons in saline aquatic beetles

    Directory of Open Access Journals (Sweden)

    María Botella-Cruz

    2017-07-01

    Full Text Available Hydrocarbons are the principal component of insect cuticle and play an important role in maintaining water balance. Cuticular impermeability could be an adaptative response to salinity and desiccation in aquatic insects; however, cuticular hydrocarbons have been poorly explored in this group and there are no previous data on saline species. We characterized cuticular hydrocarbons of adults and larvae of two saline aquatic beetles, namely Nebrioporus baeticus (Dytiscidae and Enochrus jesusarribasi (Hydrophilidae, using a gas chromatograph coupled to a mass spectrometer. The CHC profile of adults of both species, characterized by a high abundance of branched alkanes and low of unsaturated alkenes, seems to be more similar to that of some terrestrial beetles (e.g., desert Tenebrionidae compared with other aquatic Coleoptera (freshwater Dytiscidae. Adults of E. jesusarribasi had longer chain compounds than N. baeticus, in agreement with their higher resistance to salinity and desiccation. The more permeable cuticle of larvae was characterized by a lower diversity in compounds, shorter carbon chain length and a higher proportion of unsaturated hydrocarbons compared with that of the adults. These results suggest that osmotic stress on aquatic insects could exert a selection pressure on CHC profile similar to aridity in terrestrial species.

  12. Dilution of botulinum toxin A in lidocaine vs. in normal saline for the treatment of primary axillary hyperhidrosis: a double-blind, randomized, comparative preliminary study.

    Science.gov (United States)

    Güleç, A T

    2012-03-01

    Botulinum toxin A (BTX-A) is an effective and safe treatment modality for primary axillary hyperhidrosis. However, some patients experience considerable pain during injections. Dilution of botulinum toxin A in lidocaine vs. in normal saline for the treatment of primary axillary hyperhidrosis: a double-blind, randomized, comparative preliminary study. The aim of this study was to compare the efficacy, safety and pain tolerance of lidocaine-diluted BTX-A vs. saline-diluted BTX-A for the treatment of axillary hyperhidrosis. Eight patients were injected with 50 U of BTX-A diluted in 0.5 mL of saline and 1 mL of 2% lidocaine into one axilla and 50 U of BTX-A diluted in 1.5 mL of saline into the other axilla in a randomized fashion. The pain associated with the injections were self-assessed by the subjects using a 100-mm visual analogue scale (VAS). Lidocaine-diluted BTX-A and saline-diluted BTX-A were similarly effective regarding the reduction in sweat production, the onset of sweat cessation and the duration of hypo/anhidrosis. Nevertheless, the pain VAS score during the injections was significantly lower in the axilla treated with lidocaine-diluted BTX-A than the one treated with saline-diluted toxin. Preliminary study due to relatively small sample size. Botulinum toxin A diluted in lidocaine causes significantly less pain than BTX-A diluted in saline, whereas it is is equally effective and safe as the latter one in treating axillary hyperhidrosis. Therefore, we suggest that lidocaine-diluted BTX-A may be a better treatment option for the patients with primary axillary hyperhidrosis. © 2011 The Author. Journal of the European Academy of Dermatology and Venereology © 2011 European Academy of Dermatology and Venereology.

  13. Assessing the mechanical impact of CO2 injection on faults and seals

    NARCIS (Netherlands)

    Orlic, B.

    2009-01-01

    Two options for geological storage of CO2 are currently considered: storage in depleted hydrocarbon fields, which have a hydrocarbon proven seal, and storage in deep (>800m) saline aquifers, which lack such a seal. Pore pressure changes resulting from fluid extraction and subsequent CO2 injection in

  14. Effect of basic fibroblast growth factor and danshen on bcl-2 and p53 mRNA expression in the brain of rats exposed to repeated,high,positive acceleration(+Gz)

    Institute of Scientific and Technical Information of China (English)

    Hongjin Liu; Qing Cai

    2008-01-01

    BACKGROUND:Both animal experiments and clinical studies have shown that basic fibroblast growth factor(bFGF)and danshen(Salvia miltiorrhiza)can exhibit protective effects on ischemia-reperfusion cerebral injury.OBJECTIVE:To test whether bFGF and danshen can protect cerebral injury induced by exposure to repeated,high,positive acceleration(+Gz)in an animal model and to analyze the possible mechanisms.DESIGN,TIME AND SETTING:Randomized controlled animal study.The experiment was performed at the Research Center for Molecular Biology,Air-force General Hospital of Chinese PLA from April to August 2000.MATERIALS:A total of 20 clean grade,healthy,Sprague Dawley rats of both genders,weighing(200±15)g,were provided by our experimental animal center.Rats were randomly divided into 5 groups:the control group,+Gz exposure group,bFGF group,danshen group,and saline group,with 4 animals per group.bFGF(Beijing Bailuyuan Biotechnology Co.Ltd.)and danshen solution(Shanghai Zhongxi Pharmaceutical Co.Ltd.)were used.METHODS:All rats were fixed on a rotary arm of a centrifugal apparams(2 m in radius)with their heads oriented towards the center of the apparatus.Except for rats in the control group.the value of+Gz exposure was+14 Gz with an acceleration rate of 1.5 G/s.The peak force lasted for 45 seconds.+Gz exposure was performed three times with intervals of 30 minutes.Rats in the control group received the same+Gz procedure,but the G value was+1 Gz.Rats in bFGF group and danshen group were intraperitoneally injected with 100 μg/kg bFGF or 15 g/kg danshen solution,respectively,at 30 minutes prior to centrifugation and immediately after tentrifugation.Rats in saline group were injected with the same volume of saline.Six hours after exposure,rats were decapitated.One hemisphere was preserved in liquid nitrogen for RNA extraction and the other was processed for apoptosis detection.MAIN OUTCOME MEASURES:mRNA levels of bcl-2 and p53 were measured by semi-quantitative reverse

  15. Microbial monitoring during CO2 storage in deep subsurface saline aquifers in Ketzin, Germany

    Science.gov (United States)

    Wuerdemann, H.; Wandrey, M.; Fischer, S.; Zemke, K.; Let, D.; Zettlitzer, M.; Morozova, D.

    2010-12-01

    Investigations on subsurface saline aquifers have shown an active biosphere composed of diverse groups of microorganisms in the subsurface. Since microorganisms represent very effective geochemical catalysts, they may influence the process of CO2 storage significantly. In the frames of the EU Project CO2SINK a field laboratory to study CO2 storage into saline aquifer was operated. Our studies aim at monitoring of biological and biogeochemical processes and their impact on the technical effectiveness of CO2 storage technique. The interactions between microorganisms and the minerals of both the reservoir and the cap rock may cause changes to the structure and chemical composition of the rock formations, which may influence the reservoir permeability locally. In addition, precipitation and corrosion may be induced around the well affecting the casing and the casing cement. Therefore, analyses of the composition of microbial communities and its changes should contribute to an evaluation of the effectiveness and reliability of the long-term CO2 storage technique. In order to investigate processes in the deep biosphere caused by the injection of supercritical CO2, genetic fingerprinting (PCR SSCP Single-Strand-Conformation Polymorphism) and FISH (Fluorescence in situ Hybridisation) were used for identification and quantification of microorganisms. Although saline aquifers could be characterised as an extreme habitat for microorganisms due to reduced conditions, high pressure and salinity, a high number of diverse groups of microorganisms were detected with downhole sampling in the injection and observation wells at a depth of about 650m depth. Of great importance was the identification of the sulphate reducing bacteria, which are known to be involved in corrosion processes. Microbial monitoring during CO2 injection has shown that both quantity and diversity of microbial communities were strongly influenced by the CO2 injection. In addition, the indigenous microbial

  16. Intracytoplasmic Sperm Injection (ICSI)

    Science.gov (United States)

    ... sperm must attach to the outside of the egg. Once attached, the sperm pushes through the outer layer to the inside ... in vitro fertilization (IVF) to help fertilize the egg. During ICSI, a single sperm is injected directly into the cytoplasm the egg. ...

  17. Water injection dredging

    NARCIS (Netherlands)

    Verhagen, H.J.

    2000-01-01

    Some twenty years ago WIS-dredging has been developed in the Netherlands. By injecting water into the mud layer, the water content of the mud becomes higher, it becomes fluid mud and will start to flow. The advantages of this system are that there is no need of transporting the mud in a hopper, and

  18. Giving an insulin injection

    Science.gov (United States)

    ... an alcohol wipe on your injection site. The insulin needs to go into the fat layer under the skin. Pinch the skin and put the needle in at a 45º angle. If your tissues are thick enough, you may be able to ...

  19. Crowding by a repeating pattern.

    Science.gov (United States)

    Rosen, Sarah; Pelli, Denis G

    2015-01-01

    Theinability to recognize a peripheral target among flankers is called crowding. For a foveal target, crowding can be distinguished from overlap masking by its sparing of detection, linear scaling with eccentricity, and invariance with target size.Crowding depends on the proximity and similarity of the flankers to the target. Flankers that are far from or dissimilar to the target do not crowd it. On a gray page, text whose neighboring letters have different colors, alternately black and white, has enough dissimilarity that it might escape crowding. Since reading speed is normally limited by crowding, escape from crowding should allow faster reading. Yet reading speed is unchanged (Chung & Mansfield, 2009). Why? A recent vernier study found that using alternating-color flankers produces strong crowding (Manassi, Sayim, & Herzog, 2012). Might that effect occur with letters and reading? Critical spacing is the minimum center-to-center target-flanker spacing needed to correctly identify the target. We measure it for a target letter surrounded by several equidistant flanker letters of the same polarity, opposite polarity, or mixed polarity: alternately white and black. We find strong crowding in the alternating condition, even though each flanker letter is beyond its own critical spacing (as measured in a separate condition). Thus a periodic repeating pattern can produce crowding even when the individual elements do not. Further, in all conditions we find that, once a periodic pattern repeats (two cycles), further repetition does not affect critical spacing of the innermost flanker.

  20. An experimental study on tissue injury following intrahepatic injection of various sclerosing agents in rats : usefulness of 50% acetic acid

    Energy Technology Data Exchange (ETDEWEB)

    Kong, Keun Young; Oh, Joo Hyung; Yoon, Yup; Choi, Woo Suk; Hong, Hoon Pyo; Kim, Eui Jong; Kim, Youn Wha [Kyunghee Univ. Hospital, Seoul (Korea, Republic of)

    1998-08-01

    To evaluate histopathologic change in the liver after injection of various kinds of sclerosants, and to thus determine whether 50% acetic acid, a new sclerosant, is suitable for percutaneous intrahepatic injection.Materials and Methods : Four kinds of clinically available sclerosants were used : 50% acetic acid, 99% ethanol,10% phenol, and hot saline. Each group consisted of ten rats, and 0.1 ml of each sclerosant was directly injected into the liver. After two days and one week, gross and histopathologic findings of resected liver in the area of tissue necrosis, as well as the degree of extrahepatic peritoneal adhesion, were assessed in each group. Results :In all groups, the main pathologic changes were acute necrosis with inflammation after two days and secondary regenerative fibrosis after week. In the 50% acetic acid injection group, the degree of necrosis was more severe and the mean diameter of the necrotic area was greater ; this latter was not, however, significantly wider than in the 99% ethanol injection group, though was significantly wider than in the 10% phenol and hot saline injection group. Conclusion : When used for percutaneous injection, 50% acetic acid, caused more tissue necrosis than 99% ethanol, 10% phenol, or hot saline. We therefore conclude that this acid may be useful for percutaneous intrahepatic injection of a hepatic tumor.

  1. Automatization and familiarity in repeated checking

    NARCIS (Netherlands)

    Dek, Eliane C P; van den Hout, Marcel A.; Giele, Catharina L.; Engelhard, Iris M.

    2014-01-01

    Repeated checking paradoxically increases memory uncertainty. This study investigated the underlying mechanism of this effect. We hypothesized that as a result of repeated checking, familiarity with stimuli increases, and automatization of the checking procedure occurs, which should result in decrea

  2. CDC Vital Signs: Preventing Repeat Teen Births

    Science.gov (United States)

    ... file Error processing SSI file Preventing Repeat Teen Births Recommend on Facebook Tweet Share Compartir On this ... Too many teens, ages 15–19, have repeat births. Nearly 1 in 5 births to teens, ages ...

  3. Expanded complexity of unstable repeat diseases

    OpenAIRE

    Polak, Urszula; McIvor, Elizabeth; Dent, Sharon Y.R.; Wells, Robert D.; Napierala, Marek.

    2012-01-01

    Unstable Repeat Diseases (URDs) share a common mutational phenomenon of changes in the copy number of short, tandemly repeated DNA sequences. More than 20 human neurological diseases are caused by instability, predominantly expansion, of microsatellite sequences. Changes in the repeat size initiate a cascade of pathological processes, frequently characteristic of a unique disease or a small subgroup of the URDs. Understanding of both the mechanism of repeat instability and molecular consequen...

  4. Recovery from hybrid breakdown in a marine invertebrate is faster, stronger and more repeatable under environmental stress.

    Science.gov (United States)

    Hwang, A S; Pritchard, V L; Edmands, S

    2016-09-01

    Understanding how environmental stress alters the consequences of hybridization is important, because the rate of hybridization and the likelihood of hybrid speciation both appear elevated in harsh, disturbed or marginal habitats. We assessed fitness, morphometrics and molecular genetic composition over 14 generations of hybridization between two highly divergent populations of the marine copepod Tigriopus californicus. Replicated, experimental hybrid populations in both control and high-salinity conditions showed a decline in fitness, followed by a recovery. Recovery was faster in the salinity stress treatment, returning to parental levels up to two generations earlier than in the control. This recovery was stable in the high-salinity treatment, whereas in the control treatment, fitness dropped back below parental levels at the final time point. Recovery in the high-salinity treatment was also stronger in terms of competitive fitness and heat-shock tolerance. Finally, consequences of hybridization were more repeatable under salinity stress, where among-replicate variance for survivorship and molecular genetic composition was lower than in the control treatment. In a system with low effective population sizes (estimates ranged from 17 to 63), where genetic drift might be expected to be the predominate force, strong selection under harsh environmental conditions apparently promoted faster, stronger and more repeatable recovery from depressed hybrid fitness.

  5. Biodiversity patterns of soil ciliates along salinity gradients.

    Science.gov (United States)

    Zhao, Feng; Xu, Kuidong

    2016-04-01

    We evaluated ciliate diversity in saline soils with a salinity range from 6.5 to 65 psu by the morphological method of the Ludox-quantitative protargol stain (QPS) and the molecular techniques of ciliate-specific clone library and denaturing gradient gel electrophoresis. No active ciliates could be detected with the Ludox-QPS method, while high molecular diversity of ciliates was found. The highest ciliate molecular diversity was obtained from the soil at salinity of 8.9 psu, moderate diversity was found at salinity of 6.5 psu, and the diversity sharply decreased at salinity of 50.5 psu. By contrast, the number of ciliate classes clearly decreased with increasing soil salinity: six, five, four and two classes from sites with salinity of 6.5 psu, 8.9 psu, 29.5 psu and 50.5 psu, respectively. Ciliate diversity pattern is different from that of bacteria, whose diversity is also high in extremely saline environments. Meanwhile, the composition of ciliate community was significantly different along salinity gradient. Colpodea and Oligohymenophorea were diverse in soils at salinity less than 29.5 psu, while absent in soils with salinity above 50.5 psu. BIOENV analysis indicated soil salinity and water content were the main factors regulating the distribution of ciliates in saline soils.

  6. Repeated administration of D-amphetamine induces loss of [{sup 123}I]FP-CIT binding to striatal dopamine transporters in rat brain: a validation study

    Energy Technology Data Exchange (ETDEWEB)

    Booij, Jan [Department of Nuclear Medicine, Academic Medical Center, 1105 AZ Amsterdam (Netherlands)]. E-mail: j.booij@amc.uva.nl; Bruin, Kora de [Department of Nuclear Medicine, Academic Medical Center, 1105 AZ Amsterdam (Netherlands); Gunning, W. Boudewijn [Department of Neurology, Epilepsy Centre Kempenhaeghe, 5590 AB Heeze (Netherlands)

    2006-04-15

    In recent years, several PET and SPECT studies have shown loss of striatal dopamine transporter (DAT) binding in amphetamine (AMPH) users. However, the use of DAT SPECT tracers to detect AMPH-induced changes in DAT binding has not been validated. We therefore examined if repeated administration of D-AMPH or methamphetamine (METH) may induce loss of binding to striatal DATs in rats by using an experimental biodistribution study design and a SPECT tracer for the DAT ([{sup 123}I]FP-CIT). Methods: Groups of male rats (n=10 per group) were treated with D-AMPH (10 mg/kg body weight), METH (10 mg/kg body weight), or saline, twice a day for 5 consecutive days. Five days later, [{sup 123}I]FP-CIT was injected intravenously, and 2 h later, the rats were sacrificed and radioactivity was assayed. Results: In D-AMPH but not METH-treated rats, striatal [{sup 123}I]FP-CIT uptake was significantly lower (approximately 17%) than in the control group. Conclusion: These data show that [{sup 123}I]FP-CIT can be used to detect AMPH-induced changes in DAT binding and may validate the use of DAT radiotracers to study AMPH-induced changes in striatal DAT binding in vivo.

  7. Numerical simulation of CO2 geological storage in saline aquifers - case study of Utsira formation

    Directory of Open Access Journals (Sweden)

    Zheming Zhang, Ramesh K. Agarwal

    2014-01-01

    Full Text Available CO2 geological storage (CGS is one of the most promising technologies to address the issue of excessive anthropogenic CO2 emissions in the atmosphere due to fossil fuel combustion for electricity generation. In order to fully exploit the storage potential, numerical simulations can help in determining injection strategies before the deployment of full scale sequestration in saline aquifers. This paper presents the numerical simulations of CO2 geological storage in Utsira saline formation where the sequestration is currently underway. The effects of various hydrogeological and numerical factors on the CO2 distribution in the topmost hydrogeological layer of Utsira are discussed. The existence of multiple pathways for upward mobility of CO2 into the topmost layer of Utsira as well as the performance of the top seal are also investigated.

  8. Numerical simulation of CO2 geological storage in saline aquifers – case study of Utsira formation

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Zheming; Agarwal, Ramesh K. [Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, MO 63130 (United States)

    2013-07-01

    CO2 geological storage (CGS) is one of the most promising technologies to address the issue of excessive anthropogenic CO2 emissions in the atmosphere due to fossil fuel combustion for electricity generation. In order to fully exploit the storage potential, numerical simulations can help in determining injection strategies before the deployment of full scale sequestration in saline aquifers. This paper presents the numerical simulations of CO2 geological storage in Utsira saline formation where the sequestration is currently underway. The effects of various hydrogeological and numerical factors on the CO2 distribution in the topmost hydrogeological layer of Utsira are discussed. The existence of multiple pathways for upward mobility of CO2 into the topmost layer of Utsira as well as the performance of the top seal are also investigated.

  9. 47 CFR 97.205 - Repeater station.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Repeater station. 97.205 Section 97.205... SERVICE Special Operations § 97.205 Repeater station. (a) Any amateur station licensed to a holder of a Technician, General, Advanced or Amateur Extra Class operator license may be a repeater. A holder of...

  10. 47 CFR 22.1015 - Repeater operation.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Repeater operation. 22.1015 Section 22.1015... Offshore Radiotelephone Service § 22.1015 Repeater operation. Offshore central stations may be used as repeater stations provided that the licensee is able to maintain control of the station, and in...

  11. ProtRepeatsDB: a database of amino acid repeats in genomes

    Directory of Open Access Journals (Sweden)

    Chauhan Virander S

    2006-07-01

    Full Text Available Abstract Background Genome wide and cross species comparisons of amino acid repeats is an intriguing problem in biology mainly due to the highly polymorphic nature and diverse functions of amino acid repeats. Innate protein repeats constitute vital functional and structural regions in proteins. Repeats are of great consequence in evolution of proteins, as evident from analysis of repeats in different organisms. In the post genomic era, availability of protein sequences encoded in different genomes provides a unique opportunity to perform large scale comparative studies of amino acid repeats. ProtRepeatsDB http://bioinfo.icgeb.res.in/repeats/ is a relational database of perfect and mismatch repeats, access to which is designed as a resource and collection of tools for detection and cross species comparisons of different types of amino acid repeats. Description ProtRepeatsDB (v1.2 consists of perfect as well as mismatch amino acid repeats in the protein sequences of 141 organisms, the genomes of which are now available. The web interface of ProtRepeatsDB consists of different tools to perform repeat s; based on protein IDs, organism name, repeat sequences, and keywords as in FASTA headers, size, frequency, gene ontology (GO annotation IDs and regular expressions (REGEXP describing repeats. These tools also allow formulation of a variety of simple, complex and logical queries to facilitate mining and large-scale cross-species comparisons of amino acid repeats. In addition to this, the database also contains sequence analysis tools to determine repeats in user input sequences. Conclusion ProtRepeatsDB is a multi-organism database of different types of amino acid repeats present in proteins. It integrates useful tools to perform genome wide queries for rapid screening and identification of amino acid repeats and facilitates comparative and evolutionary studies of the repeats. The database is useful for identification of species or organism specific

  12. COMPARATIVE EFFICACY OF HYPERTONIC SALINE AND NORMAL SALINE SOLUTIONS IN EXPERIMENTALLY INDUCED ENDOTOXIC SHOCK IN DOGS

    Directory of Open Access Journals (Sweden)

    M. A. ZAFAR, G. MUHAMMAD, M. H. HUSSAIN, T. AHMAD, A. YOUSAF AND I. SARFARAZ

    2009-07-01

    Full Text Available This study was contemplated to determine the comparative beneficial effects of hypertonic saline solution and sterile saline solution in induced endotoxic shock in dogs. For this purpose, 12 healthy Mongrel dogs were randomly divided into two equal groups (A and B. All the animals were induced endotoxaemia by slow intravenous administration of Escherichia coli endotoxins 0111:B4. Group A was treated with normal saline solution @ 90 ml/kg BW, while group B was given hypertonic saline solution @ 4 ml/kg BW, followed by normal saline solution @ 10 ml/kg BW. Different parameters were observed for evaluation of these fluids including clinical and haematological parameters, serum electrolytes, mean arterial pressure, and blood gases at different time intervals up to 24 hours post treatments. After infusion of respective fluids, all parameters returned to baseline values in both the groups but group B showed better results than group A except bicarbonates, which better recovered in group A. Thus, it was concluded that a small-volume of hypertonic saline solution could be effectively used in reversing the endotoxaemia. Moreover, it provides a rapid and inexpensive resuscitation from endotoxic shock.

  13. The Impact of Different Fertigation Practices and Initial Soil Salinity on Soil N and Salinity Transport

    Directory of Open Access Journals (Sweden)

    Zeng Wen-zhi

    2013-04-01

    Full Text Available For studying the impact of different fertigation practices and initial soil salinity on soil N and salinity transport, large Plexi-glass columns (18.2 cm in diameter and 100 cm long assembled from sandy loam (Inner Mongolia and saturation optimum design were employed to simulate a range of initial soil salinity conditions in soil profile and fertigation practices. (4~8 L solution with 20 g urea dissolved was applied evenly and slowly to the surface of each column. Nitrate and ammonium nitrogen in soil and discharge from the outlet were sampled and the electrical conductivity of soil and the chloride ion concentration of discharges were also measured. Findings from this study include: (1 high initial salinity in soil had a certain impact on the changes of water content of vertical soil section with the time being after large amount of water irrigation and it might increase the rate of infiltration; (2 the amount of irrigation water significantly affected the transport of soil salinity; (3 high soil salinity content was likely to promote the conversion of urea nitrogen to ammonium nitrogen and it might also play an active role in ammonium nitrogen accumulation in drainage; (4 There is a sound linear relation between the cumulative content of chloride ion and that of nitrate nitrogen in the drainage and soil profile (r2 = 0.8221 and 0.7442.

  14. Transport Characteristics of Soil Salinity in Saline-alkali Land under Water Storage and Drainage Conditions

    Institute of Scientific and Technical Information of China (English)

    Juan; LI; Jichang; HAN

    2015-01-01

    To test the variation and transport of soil salinity in saline- alkali land under water storage and drainage treatments,an experimental model was established in Fuping,Shaanxi Province,2009. The variation of soil salinity during 0- 160 cm soil depth under the two treatments was determined and analyzed. Results showed that the average soil water content under water storage treatment was 4. 47% higher than that under drainage treatment,which means that the water storage treatment could help to improve soil moisture to satisfy the crop’s growth needs. The profile distribution of soil soluble solids( TDS),anion( Cl-,HCO3-,SO2-4) and cation( Ca2 +,Na+,K+) content and the variation of soil p H were also measured and analyzed. PCA( Principal Component Analysis) was used to explore the relationship between the soil salinity and its ions,which showed that the water storage treatment could significantly decrease the surface salinity of soil and accelerate the desalination of topsoils,and finally,the soil quality was improved significantly,demonstrating that the water storage treatment has a remarkable effect on soil salinity management.

  15. Functionalization of micromodels with kaolinite for investigation of low salinity oil-recovery processes.

    Science.gov (United States)

    Song, Wen; Kovscek, Anthony R

    2015-08-21

    Sandstone formations are ubiquitous in both aquifers and petroleum reservoirs, of which clay is a major constituent. The release of clay particles from pore surfaces as a result of reduced injection fluid salinity can greatly modify the recovery of hydrocarbons from subsurface formations by shifting the wettability properties of the rock. In this paper we demonstrate a microfluidic approach whereby kaolinite is deposited into a two-dimensional microfluidic network (micromodel) to enable direct pore-scale, real-time visualization of fluid-solid interactions with representative pore-geometry and realistic surface interactions between the reservoir fluids and the formation rock. Structural characterization of deposited kaolinite particles agrees well with natural modes of occurrence in Berea sandstones; hence, the clay deposition method developed in this work is validated. Specifically, more than 90% of the deposited clay particles formed pore-lining structures and the remainder formed pore bridging structures. Further, regions of highly concentrated clay deposition likely leading to so-called Dalmatian wetting properties were found throughout the micromodel. Two post-deposition treatments are described whereby clay is adhered to the silicon surface reversibly and irreversibly resulting in microfluidic systems that are amenable to studies on (i) the fundamental mechanisms governing the increased oil recovery during low salinity waterfloods and (ii) the effect of a mixed-wet surface on oil recovery, respectively. The reversibly functionalized platform is used to determine the conditions at which stably adhered clay particles detach. Specifically, injection brine salinity below 6000 ppm of NaCl induced kaolinite particle release from the silicon surface. Furthermore, when applied to an aged system with crude oil, the low salinity waterflood recovered an additional 14% of the original oil in place compared to waterflooding with the formation brine.

  16. Pentatricopeptide repeat proteins in plants.

    Science.gov (United States)

    Barkan, Alice; Small, Ian

    2014-01-01

    Pentatricopeptide repeat (PPR) proteins constitute one of the largest protein families in land plants, with more than 400 members in most species. Over the past decade, much has been learned about the molecular functions of these proteins, where they act in the cell, and what physiological roles they play during plant growth and development. A typical PPR protein is targeted to mitochondria or chloroplasts, binds one or several organellar transcripts, and influences their expression by altering RNA sequence, turnover, processing, or translation. Their combined action has profound effects on organelle biogenesis and function and, consequently, on photosynthesis, respiration, plant development, and environmental responses. Recent breakthroughs in understanding how PPR proteins recognize RNA sequences through modular base-specific contacts will help match proteins to potential binding sites and provide a pathway toward designing synthetic RNA-binding proteins aimed at desired targets.

  17. Two-dimensional quantum repeaters

    Science.gov (United States)

    Wallnöfer, J.; Zwerger, M.; Muschik, C.; Sangouard, N.; Dür, W.

    2016-11-01

    The endeavor to develop quantum networks gave rise to a rapidly developing field with far-reaching applications such as secure communication and the realization of distributed computing tasks. This ultimately calls for the creation of flexible multiuser structures that allow for quantum communication between arbitrary pairs of parties in the network and facilitate also multiuser applications. To address this challenge, we propose a two-dimensional quantum repeater architecture to establish long-distance entanglement shared between multiple communication partners in the presence of channel noise and imperfect local control operations. The scheme is based on the creation of self-similar multiqubit entanglement structures at growing scale, where variants of entanglement swapping and multiparty entanglement purification are combined to create high-fidelity entangled states. We show how such networks can be implemented using trapped ions in cavities.

  18. General benchmarks for quantum repeaters

    CERN Document Server

    Pirandola, Stefano

    2015-01-01

    Using a technique based on quantum teleportation, we simplify the most general adaptive protocols for key distribution, entanglement distillation and quantum communication over a wide class of quantum channels in arbitrary dimension. Thanks to this method, we bound the ultimate rates for secret key generation and quantum communication through single-mode Gaussian channels and several discrete-variable channels. In particular, we derive exact formulas for the two-way assisted capacities of the bosonic quantum-limited amplifier and the dephasing channel in arbitrary dimension, as well as the secret key capacity of the qubit erasure channel. Our results establish the limits of quantum communication with arbitrary systems and set the most general and precise benchmarks for testing quantum repeaters in both discrete- and continuous-variable settings.

  19. Hungarian repeat station survey, 2010

    Directory of Open Access Journals (Sweden)

    Péter Kovács

    2013-03-01

    Full Text Available The last Hungarian repeat station survey was completed between October 2010 and February 2011. Declination, inclination and the total field were observed using one-axial DMI fluxgate magnetometer mounted on Zeiss20A theodolite and GSM 19 Overhauser magnetometer. The magnetic elements of the sites were reduced to the epoch of 2010.5 on the basis of the continuous recordings of Tihany Geophysical Observatory. In stations located far from the reference observatory, the observations were carried out in the morning and afternoon in order to decrease the effect of the distant temporal correction. To further increase the accuracy, on-site dIdD variometer has also been installed near the Aggtelek station, in the Baradla cave, during the survey of the easternmost sites. The paper presents the technical details and the results of our last campaign. The improvement of the accuracy of the temporal reduction by the use of the local variometer is also reported.

  20. Quality control during repeated fryings

    Directory of Open Access Journals (Sweden)

    Cuesta, C.

    1998-08-01

    Full Text Available Most of the debate ¡s about how the slow or frequent turnover of fresh fat affects the deterioration, of fat used in frying. Then, the modification of different oils used in repeated fryings of potatoes without or with turnover of fresh oil, under similar frying conditions, was evaluated by two criteria: by measuring the total polar component isolated by column chromatography and by the evaluation of the specific compounds related to thermoxidative and hydrolytic alteration by High Performance Size Exclusion Chromatography (HPSEC. The results indicate that with frequent turnover of fresh oil, the critical level of 25% of polar material is rarely reached, and there are fewer problems with fat deterioration because the frying tended to increase the level of polar material and thermoxidative compounds (polymers and dimers of triglycerides and oxidized triglycerides in the fryer oil during the first fryings, followed by minor changes and a tendency to reach a near-steady state in successive fryings. However, in repeated frying of potatoes using a null turnover the alteration rate was higher being linear the relationship found between polar material or the different thermoxidative compounds and the number of fryings. On the other hand chemical reactions produced during deep-fat frying can be minimized by using proper oils. In addition the increased level of consumers awareness toward fat composition and its impact on human health could had an impact on the selection of fats for snacks and for industry. In this way monoenic fats are the most adequate from a nutritional point of view and for its oxidative stability during frying.

  1. Penaeid Shrimp Salinity Gradient Tank Study 2005-2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — We designed an experimental gradient tank to examine salinity preferences of juvenile brown shrimp and white shrimp. Although no strong pattern of salinity avoidance...

  2. Climate change and soil salinity: The case of coastal Bangladesh.

    Science.gov (United States)

    Dasgupta, Susmita; Hossain, Md Moqbul; Huq, Mainul; Wheeler, David

    2015-12-01

    This paper estimates location-specific soil salinity in coastal Bangladesh for 2050. The analysis was conducted in two stages: First, changes in soil salinity for the period 2001-2009 were assessed using information recorded at 41 soil monitoring stations by the Soil Research Development Institute. Using these data, a spatial econometric model was estimated linking soil salinity with the salinity of nearby rivers, land elevation, temperature, and rainfall. Second, future soil salinity for 69 coastal sub-districts was projected from climate-induced changes in river salinity and projections of rainfall and temperature based on time trends for 20 Bangladesh Meteorological Department weather stations in the coastal region. The findings indicate that climate change poses a major soil salinization risk in coastal Bangladesh. Across 41 monitoring stations, the annual median projected change in soil salinity is 39 % by 2050. Above the median, 25 % of all stations have projected changes of 51 % or higher.

  3. Global Temperature and Salinity Profile Programme (GTSPP) Data

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Global Temperature-Salinity Profile Programme (GTSPP) develops and maintains a global ocean temperature and salinity resource with data that are both up-to-date...

  4. Injection-controlled laser resonator

    Science.gov (United States)

    Chang, J.J.

    1995-07-18

    A new injection-controlled laser resonator incorporates self-filtering and self-imaging characteristics with an efficient injection scheme. A low-divergence laser signal is injected into the resonator, which enables the injection signal to be converted to the desired resonator modes before the main laser pulse starts. This injection technique and resonator design enable the laser cavity to improve the quality of the injection signal through self-filtering before the main laser pulse starts. The self-imaging property of the present resonator reduces the cavity induced diffraction effects and, in turn, improves the laser beam quality. 5 figs.

  5. SPS injection kicker magnet

    CERN Multimedia

    1975-01-01

    One of the first-generation SPS injection kicker magnets, view of the complete tank. First proton beam from the PS was injected into the SPS in 1976, at a beam momentum of 10 GeV/c. These kickers served until the end of 1979 and were replaced at the beginning of 1980 by stronger ones, in preparation for the SPS as a proton-antiproton collider. For this, transfer momentum from the PS to the SPS was raised to 26 GeV/c, so as to avoid acceleration of the dense p and pbar bunches through SPS transition energy. Bearded Roland Tröhler is at the left, Giacomo Busetta smiles at the right. See also 7502073X, 7502074X and Annual Report 1975, 162.

  6. Peracute toxic effects of inhaled hydrogen sulfide and injected sodium hydrosulfide on the lungs of rats.

    Science.gov (United States)

    Lopez, A; Prior, M G; Reiffenstein, R J; Goodwin, L R

    1989-02-01

    This study was designed to test whether intraperitoneally injected sodium hydrosulfide (NaHS) would mimic the pulmonary alterations induced by lethal peracute exposure to an atmosphere containing hydrogen sulfide. Groups of five Sprague-Dawley rats were exposed to an atmosphere of either 2317.6 +/- 547.3 mg m-3 H2S (H2S group) or no H2S (air group), or were injected intraperitoneally with a solution containing 30 mg kg-1 sodium hydrosulfide (NaHS group) or saline solution (vehicle control). Rats of the air and saline groups were killed by cervical dislocation. All rats exposed to H2S or injected with NaHS died within 3 min; however, only rats exposed to H2S showed severe respiratory distress in the agonic phase preceding death. In addition, rats in the H2S group had a notable discharge of serous fluid from the mouth and nostrils. At necropsy, all rats in the H2S group had gross and histologic evidence of pulmonary edema characterized by massive extravasation of eosinophilic fluid into the bronchoalveolar space. In contrast, the lungs of rats injected with NaHS or saline or exposed to air were unaffected. It was concluded that the edematogenic effect of H2S in the lungs cannot be reproduced by injection of NaHS. The severity of lung edema induced by a peracute exposure to H2S was extensive enough to account for death.

  7. Some liver function indicators in guinea pigs injected with cyanide

    Directory of Open Access Journals (Sweden)

    Idonije O. Blessing

    2013-08-01

    Full Text Available To determine the lethal effect of cyanide poisoning on the liver cells using ALP, AST, ALT and Bilirubin (Total and Conjugated as test indicators, eighteen (18 male guinea pigs, age matched were used for this study. This included 12 guinea pigs which served as test groups and injected with different concentrations of potassium cyanide saline solution while 6 guinea pigs without cyanide injection served as control group. Blood samples were collected from the guinea pigs three hours after the injections of the cyanide saline solution. The blood samples were analysed for liver enzymes and bilirubin using standard methods. The result of the plasma AST and ALT at the different concentrations showed decreased levels which were significant when compared with the controls. The plasma levels of Total and Conjugated bilirubin were also significantly decreased when compared with controls. However, the levels of the ALP in both test and control groups showed no significant difference. This study therefore highlighted the need to determine the levels of these liver function indicators in cases of cyanide poisoning to ensure efficient management of patients who are exposed to the cyanide.

  8. PS injection area

    CERN Multimedia

    1974-01-01

    Looking against the direction of protons in the main ring (left): the beam coming from the linac 1 either goes to the booster (on the right) or is deflected towards the PS to be directly injected into section 26 (facing the camera). Also shown the start of the TT2 line, ejected from straight section 16 to go towards the ISR passing over the beam line from the linac. (see Photo Archive 7409009)

  9. Hypertonic saline is more effective than normal saline in seasonal allergic rhinitis in children.

    Science.gov (United States)

    Marchisio, P; Varricchio, A; Baggi, E; Bianchini, S; Capasso, M E; Torretta, S; Capaccio, P; Gasparini, C; Patria, F; Esposito, S; Principi, N

    2012-01-01

    Allergic rhinitis (AR) is a very common childhood disease that is associated with a significant reduction in the patients' quality of life. Its treatment combines educating the patients and their parents, immunotherapy and drug administration. However, even the best approach does not relieve the symptoms of a number of patients. Alternative therapies are particularly needed for children because the fear of adverse events frequently reduces parental compliance to the prescribed drugs, and immunotherapy is less easy to administer than in adults. In this prospective investigator-blinded study we evaluated whether children, with a documented history of seasonal grass pollen-related AR, benefit from nasal irrigation by assessing the effects on nasal signs and symptoms, on middle ear effusion and on adenoidal hypertrophy. We randomized children aged 5 to 9 years (median age 82 months) to normal saline or hypertonic saline (a 2.7% sodium chloride solution), administered twice-daily using a disposable 20 ml syringe, or no treatment. Nasal symptoms (rhinorrhea, itching, sneezing, nasal obstruction), swelling of turbinates, adenoid hypertrophy or middle ear effusion were assessed at baseline and after 4 weeks of treatment. Two hundred and twenty children (normal saline: 80; hypertonic saline: 80; no treatment: 60) completed the study. After four weeks, all the considered items were significantly reduced in the group receiving hypertonic saline (P < 0.0001), whereas in the group receiving normal saline only rhinorrhea (P = 0.0002) and sneezing (P = 0.002) were significantly reduced. There was no significant change in any of the items in the control group. The duration of oral antihistamines was significantly lower in the children receiving hypertonic saline than in those treated with normal saline or in controls. No adverse events were reported and parental satisfaction and compliance with the procedure were globally very good, regardless of the solution used. Using our

  10. Efficacy of nebulised L-adrenaline with 3% hypertonic saline versus normal saline in bronchiolitis

    Directory of Open Access Journals (Sweden)

    Shabnam Sharmin

    2016-08-01

    Full Text Available Background: Bronchiolitis is one of the most common respiratory diseases requiring hospitalization. Nebulized epineph­rine and salbutamol therapy has been used in different centres with varying results. Objective: The objective of the study was to compare the efficacy of nebulised adrenaline diluted with 3% hypertonic saline with nebulised adrenaline diluted with normal saline in bronchiolitis. Methods: Fifty three infants and young children with bronchiolitis, age ranging from 2 months to 2 years, presenting in the emergency department of Manikganj Sadar Hospital were enrolled in the study. After initial evaluation, patients were randomized to receive either nebulized adrenaline I .5 ml ( 1.5 mg diluted with 2 ml of3% hypertonic saline (group I ornebulised adrenaline 1.5 ml (1.5 mg diluted with 2 ml of normal saline (group II. Patients were evaluated again 30 minutes after nebulization. Results: Twenty eight patients in the group I (hypertonic saline and twenty five in groupII (normal saline were included in the study. After nebulization, mean respiratory rate decreased from 63.7 to 48.1 (p<.01, mean clinical severity score decreased from 8.5 to 3.5 (p<.01 and mean oxygen satw·ation increased 94.7% to 96.9% (p<.01 in group I. In group II, mean respiratory rate decreased from 62.4 to 47.4 (p<.01, mean clinical severity score decreased from 7.2 to 4.1 (p<.01 and mean oxygen saturation increased from 94. 7% to 96. 7% (p<.01. Mean respiratory rate decreased by 16 in group I versus 14.8 (p>.05 in group 11, mean clinical severity score decreased by 4.6 in group versus 3 (p<.05 in group, and mean oxygen saturation increased by 2.2% and 1.9% in group and group respectively. Difference in reduction in clinical severity score was statistically significant , though the changes in respiratory rate and oxygen saturation were not statistically significant. Conclusion: The study concluded that both nebulised adrenaline diluted with 3% hypertonic saline and

  11. Injection-induced earthquakes.

    Science.gov (United States)

    Ellsworth, William L

    2013-07-12

    Earthquakes in unusual locations have become an important topic of discussion in both North America and Europe, owing to the concern that industrial activity could cause damaging earthquakes. It has long been understood that earthquakes can be induced by impoundment of reservoirs, surface and underground mining, withdrawal of fluids and gas from the subsurface, and injection of fluids into underground formations. Injection-induced earthquakes have, in particular, become a focus of discussion as the application of hydraulic fracturing to tight shale formations is enabling the production of oil and gas from previously unproductive formations. Earthquakes can be induced as part of the process to stimulate the production from tight shale formations, or by disposal of wastewater associated with stimulation and production. Here, I review recent seismic activity that may be associated with industrial activity, with a focus on the disposal of wastewater by injection in deep wells; assess the scientific understanding of induced earthquakes; and discuss the key scientific challenges to be met for assessing this hazard.

  12. Injection-induced earthquakes

    Science.gov (United States)

    Ellsworth, William L.

    2013-01-01

    Earthquakes in unusual locations have become an important topic of discussion in both North America and Europe, owing to the concern that industrial activity could cause damaging earthquakes. It has long been understood that earthquakes can be induced by impoundment of reservoirs, surface and underground mining, withdrawal of fluids and gas from the subsurface, and injection of fluids into underground formations. Injection-induced earthquakes have, in particular, become a focus of discussion as the application of hydraulic fracturing to tight shale formations is enabling the production of oil and gas from previously unproductive formations. Earthquakes can be induced as part of the process to stimulate the production from tight shale formations, or by disposal of wastewater associated with stimulation and production. Here, I review recent seismic activity that may be associated with industrial activity, with a focus on the disposal of wastewater by injection in deep wells; assess the scientific understanding of induced earthquakes; and discuss the key scientific challenges to be met for assessing this hazard.

  13. Intracutaneous Injections of Sterile Water over the Secrum for Labour Analgesia

    Directory of Open Access Journals (Sweden)

    Kirti N Saxena

    2009-01-01

    The study was conducted after approval of institutional ethical committee on 100 pregnant patients admitted to the labour room of Lok Nayak hospital, New Delhi. Patients received 4 intracutaneous injections of sterile water or normal saline 0.5ml in the lumbo-sacral region. Pain scores, progress of labour and fetal outcome were studied. There was significant reduction of pain scores in the sterile water group but not in the normal saline group at 10, 45 and 90 minutes after injection. There was no difference in the progress of labour and fetal outcome between the two groups. To conclude intracutoneous sterile water injections over the sacrum is a simple and effective method to control pain during labour.

  14. The Friction of Saline Ice on Aluminium

    Directory of Open Access Journals (Sweden)

    Christopher Wallen-Russell

    2016-01-01

    Full Text Available The friction of ice on other materials controls loading on offshore structures and vessels in the Arctic. However, ice friction is complicated, because ice in nature exists near to its melting point. Frictional heating can cause local softening and perhaps melting and lubrication, thus affecting the friction and creating a feedback loop. Ice friction is therefore likely to depend on sliding speed and sliding history, as well as bulk temperature. The roughness of the sliding materials may also affect the friction. Here we present results of a series of laboratory experiments, sliding saline ice on aluminium, and controlling for roughness and temperature. We find that the friction of saline ice on aluminium μice-al=0.1 typically, but that this value varies with sliding conditions. We propose physical models which explain the variations in sliding friction.

  15. Saline Nasal Irrigation for Upper Respiratory Conditions

    Science.gov (United States)

    2009-01-01

    Acute and chronic upper respiratory conditions are common and expensive disorders with enormous impact on patient quality of life and society at large. Saline nasal irrigation (SNI), a therapy with roots in Ayurvedic medicine that bathes the nasal mucosa with in spray or liquid saline, has been used as adjunctive care for upper respiratory conditions. In liquid form, SNI has been found to be effective adjunctive care by the Cochrane Collaboration for symptoms associated with chronic rhinosinusitis. Less conclusive clinical trial evidence supports its use in spray and liquid forms as adjunctive treatment for mild-to-moderate allergic rhinitis and acute upper respiratory infections. Consensus or expert opinion recommendations exist for SNI as a treatment for a variety of other conditions including rhinitis of pregnancy. SNI appears safe; side effects are minimal and transient. It can be recommended by clinicians to interested patients with a range of upper respiratory conditions in the context of patient education and printed instructional handouts. PMID:19904896

  16. Shenfu injection reduces toxicity of bupivacaine in rats

    Institute of Scientific and Technical Information of China (English)

    王强; 刘艳红; 雷毅; 杨静; 陈绍洋; 陈敏; 熊利泽

    2003-01-01

    Objective To investigate the effects of injecting Shenfu, an extract of traditional Chinese herbal medicines, on the central nervous system (CNS) and the cardiac toxicity of bupivacaine in rats. Methods Sixteen male Sprague-Dawley rats, weighing form 280 to 320 g, were randomly assigned to two groups (n=8 in each group). Animals in the control group received a saline injection 10 ml/kg while animals in the Shenfu group received an injection of Shenfu 10 ml/kg intraperitoneally 30 minutes before intravenous infusion of bupivacaine. Lead Ⅱ of an electrocardiogram (EEG) was continuously monitored after 3 needles were inserted into the skin of both forelimbs and the left hind-leg of each rat. The femoral artery was cannulated for measurement of arterial blood pressure and blood sampling. The femoral vein was cannulated for the infusion of bupivacaine. After baseline measurement (arterial blood pressure, heart rate and arterial blood gas), 0.5% bupivacaine was infused intravenously at a rate of 2 mg*kg-1*min-1 to all animals until asystole occurred. The time of bupivacaine-induced convulsions, arrhythmia and asystole were determined. The dose of bupivacaine was then calculated at the corresponding time point. Results The doses of bupivacaine that induced convulsions, arrhythmia and cardiac arrest were remarkably larger in Shenfu injection-treated animals than in saline-treated rats [convulsions, (10.5±1.9) mg/kg vs (7.2±1.5) mg/kg; arrhythmia (10.5±2.0) mg/kg vs (7.2±1.9) mg/kg; asystole, (32.8±8.5) mg/kg vs (25.0±5.0) mg/kg; P=0.006, 0.009 and 0.044, respectively]. Conclusion The Shenfu injection is able to reduce the toxicity of bupiralaine to CNS and cardiac system in rats.

  17. 76 FR 61382 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2011-10-04

    ... Bureau of Reclamation Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. ] SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control Act of 1974 (Pub....

  18. 75 FR 25877 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2010-05-10

    ... Bureau of Reclamation Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control ] Act of 1974...

  19. 78 FR 70574 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2013-11-26

    ....20350010.REG0000, RR04084000] Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control Act of 1974 (Pub....

  20. 77 FR 23508 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2012-04-19

    ... Bureau of Reclamation Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control Act of 1974 (Pub....

  1. 75 FR 27360 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2010-05-14

    ... Bureau of Reclamation Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control Act of 1974 (Pub....

  2. 75 FR 66389 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2010-10-28

    ... Bureau of Reclamation Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control Act of 1974 (Pub....

  3. Palaeoclimatic Indicators of China's Quaternary Saline Lake Sediments and Hydrochemistry

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    In this paper the authors classify saline lake sediments into the cold, warm and eurythermal phases, reveal the consistency between the zoning of hydrochemical types of modern saline lake water and climatic zoning and give climatic parameters under the conditions of typical cold phase (mirabilite and natron), warm phase (thenardite) and slightly warm phase (bloedite) saline lake deposition.

  4. 77 FR 61784 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2012-10-11

    ... Bureau of Reclamation Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control Act of 1974 (Pub....

  5. 78 FR 23784 - Colorado River Basin Salinity Control Advisory Council

    Science.gov (United States)

    2013-04-22

    ... Bureau of Reclamation Colorado River Basin Salinity Control Advisory Council AGENCY: Bureau of Reclamation, Interior. ACTION: Notice of public meeting. SUMMARY: The Colorado River Basin Salinity Control Advisory Council (Council) was established by the Colorado River Basin Salinity Control Act of 1974...

  6. Shallow rainwater lenses in deltaic areas with saline seepage

    NARCIS (Netherlands)

    Louw, de P.G.B.; Eeman, S.; Siemon, B.; `Voortman, B.R.; Gunnink, J.; Baaren, E.S.; Oude Essink, G.H.P.

    2011-01-01

    In deltaic areas with saline seepage, freshwater availability is often limited to shallow rainwater lenses lying on top of saline groundwater. Here we describe the characteristics and spatial variability of such lenses in areas with saline seepage and the mechanisms that control their occurrence and

  7. Shallow rainwater lenses in deltaic areas with saline seepage

    NARCIS (Netherlands)

    De Louw, Perry G.B.; Eeman, Sara; Siemon, Bernhard; Voortman, Bernard R.; Gunnink, Jan; Van Baaren, Esther S.; Oude Essink, Gualbert

    2011-01-01

    In deltaic areas with saline seepage, fresh water availability is often limited to shallow rainwater lenses lying on top of saline groundwater. Here we describe the characteristics and spatial variability of such lenses in areas with saline seepage and the mechanisms that control their occurrence an

  8. Microwave Radiometric Measurement of Sea Surface Salinity.

    Science.gov (United States)

    1984-04-01

    potential problems of polution and urban water sup- plies. Although salinity can be measured from a surface vessel, economic consider- ations advocate...Washington, DC 20350 Commander Naval Sea System Commandaa ComAinder ATTN: Mr. C. Smith, NAVSEA 63R* Nval Air Development Center "’-’. "Washington, DC...20362 ATTN: Mr. R. Bollard, Code 2062% .’* Warminster, PA 18974 • .’.Commander CNaval Sea System CommandCoimCander Headquarters Naval Air Systems

  9. Full Life Cycle Research at the Ketzin Pilot Site, Germany - From Safe and Successful CO2 Injection Operation to Post-Injection Monitoring and Site Closure

    Science.gov (United States)

    Liebscher, A. H.

    2016-12-01

    The Ketzin pilot site near Berlin, Germany, was initiated in 2004 as the first European onshore storage project for research and development on geological CO2 storage. The operational CO2 injection period started in June 2008 and ended in August 2013 when the site entered the post-injection closure period. During these five years, a total amount of 67 kt of CO2 was safely injected into a saline aquifer (Upper Triassic sandstone) at a depth of 630 m - 650 m. In fall 2013, the first observation well was partially plugged in the reservoir section; full abandonment of this well finished in 2015 after roughly 2 years of well closure monitoring. Abandonment of the remaining 4 wells will be finished by 2017 and hand-over of liability to the competent authority is planned for end of 2017. The CO2 injected was mainly of food grade quality (purity > 99.9%). In addition, 1.5 kt of CO2 from the pilot capture facility "Schwarze Pumpe" (oxyfuel power plant CO2 with purity > 99.7%) was injected in 2011. The injection period terminated with a CO2-N2 co-injection experiment of 650 t of a 95% CO2/5% N2 mixture in summer 2013 to study the effects of impurities in the CO2 stream on the injection operation. During regular operation, the CO2 was pre-heated on-site to 40 - 45°C prior to injection to ensure a single-phase injection process and avoid any phase transition or transient states within the injection facility or the reservoir. Between March and July 2013, just prior to the CO2-N2 co-injection experiment, the injection temperature was stepwise decreased down to 10°C within a "cold-injection" experiment to study the effects of two-phase injection conditions. During injection operation, the combination of different geochemical and geophysical monitoring methods enabled detection and mapping of the spatial and temporal in-reservoir behaviour of the injected CO2 even for small quantities. After the cessation of CO2 injection, post-injection monitoring continued and two additional

  10. Hydrogen-rich saline ameliorates the severity of L-arginine-induced acute pancreatitis in rats

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Han; Sun, Yan Ping; Li, Yang [Department of General Surgery, Shanghai Chang Zheng Hospital, Second Military Medical University, Shanghai 200003 (China); Liu, Wen Wu [Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433 (China); Xiang, Hong Gang [Department of General Surgery, Shanghai Chang Zheng Hospital, Second Military Medical University, Shanghai 200003 (China); Fan, Lie Ying [Department of Clinical Laboratory, Shanghai East Hospital, Tong Ji University, Shanghai 200120 (China); Sun, Qiang [Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433 (China); Xu, Xin Yun [Department of General Surgery, Shanghai Chang Zheng Hospital, Second Military Medical University, Shanghai 200003 (China); Cai, Jian Mei [Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433 (China); Ruan, Can Ping; Su, Ning; Yan, Rong Lin [Department of General Surgery, Shanghai Chang Zheng Hospital, Second Military Medical University, Shanghai 200003 (China); Sun, Xue Jun, E-mail: sunxjk@hotmail.com [Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433 (China); Wang, Qiang, E-mail: wang2929@hotmail.com [Department of General Surgery, Shanghai Chang Zheng Hospital, Second Military Medical University, Shanghai 200003 (China)

    2010-03-05

    Molecular hydrogen, which reacts with the hydroxyl radical, has been considered as a novel antioxidant. Here, we evaluated the protective effects of hydrogen-rich saline on the L-arginine (L-Arg)-induced acute pancreatitis (AP). AP was induced in Sprague-Dawley rats by giving two intraperitoneal injections of L-Arg, each at concentrations of 250 mg/100 g body weight, with an interval of 1 h. Hydrogen-rich saline (>0.6 mM, 6 ml/kg) or saline (6 ml/kg) was administered, respectively, via tail vein 15 min after each L-Arg administration. Severity of AP was assessed by analysis of serum amylase activity, pancreatic water content and histology. Samples of pancreas were taken for measuring malondialdehyde and myeloperoxidase. Apoptosis in pancreatic acinar cell was determined with terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling technique (TUNEL). Expression of proliferating cell nuclear antigen (PCNA) and nuclear factor kappa B (NF-{kappa}B) were detected with immunohistochemistry. Hydrogen-rich saline treatment significantly attenuated the severity of L-Arg-induced AP by ameliorating the increased serum amylase activity, inhibiting neutrophil infiltration, lipid oxidation and pancreatic tissue edema. Moreover, hydrogen-rich saline treatment could promote acinar cell proliferation, inhibit apoptosis and NF-{kappa}B activation. These results indicate that hydrogen treatment has a protective effect against AP, and the effect is possibly due to its ability to inhibit oxidative stress, apoptosis, NF-{kappa}B activation and to promote acinar cell proliferation.

  11. Effects on craniofacial growth and development of unilateral botulinum neurotoxin injection into the masseter muscle.

    Science.gov (United States)

    Tsai, Chi-Yang; Chiu, Wan Chi; Liao, Yi-Hsuan; Tsai, Chih-Mong

    2009-02-01

    The effects of botulinum neurotoxin type A (BoNT/A) on masseter muscles, when injected for cosmetic purposes (volumetric reduction) or treatment of excessive muscle activity (bruxism), have been investigated. However, the full anatomic effects of treatment are not known, particularly with respect to the mandible and relevant anthropometric measurements. The intent of this study was to use unilaterial BoNT/A injections to induce localized masseter atrophy and paresis and then to measure the effects of muscle influence on craniofacial growth and development. Growing male Wistar rats, 30 days old, were studied. The experimental group consisted of 8 rats. One side of the masseter muscle was injected with BoNT/A and the other side of the masseter muscle was injected with saline. The side with BoNT/A belonged to 1 group and the side with saline was the sham group. Three rats without injections was the control. After 45 days, the masseter muscles were dissected and weighed. Dry skulls were prepared, and anthropometric measurements determined. One-way ANOVA showed that the animals maintained their weight in both groups; however, the muscles injected with BoNT/A were smaller than the sham or control muscles. Anthropometric measurements of the bony structures attached to the masseter muscle showed a significant treatment effect. After localized masseter muscle atrophy induced by BoNT/A injection, alterations of craniofacial bone growth and development were seen. The results agree with the functional matrix theory that soft tissues regulate bone growth.

  12. Application of Standardization for Initial Design of Plastic Injection Moulds

    Institute of Scientific and Technical Information of China (English)

    Low; Maria; Leng-Hwa; LEE; Kim-Seng

    2002-01-01

    Today, the time-to-market for plastic products ar e getting shorter, thus the lead-time for making the injection mould is decreasin g. There is potential in timesavings in the mould design stage because the design process that is repeatable for every mould design can be standardized. T he preliminary work of any final plastic injection mould design is to always pro vide an initial design of the mould assembly for product designers (customers) p rior to receiving the final product CAD data. Traditiona...

  13. Toxicity with intravenous injection of naphtha in man.

    Science.gov (United States)

    Vaziri, N D; Smith, P J; Wilson, A

    1980-05-01

    Intravenous injection of charcoal lighter fluid (naphtha) in a suicidal attempt led to development of severe hemorrhagic pneumonitis in a 40-year-old individual. Presenting symptoms consisted of pleuritic chest pain, epigastric discomfort, and dyspnea; they appeared within 2 hours after injection. Development of roentgenographic changes lagged behind the clinical symptoms by several hours. Fever and leukocytosis were present despite the absence of demonstrable superimposed bacterial infection. The pathology seemed exclusively confined to the pulmonary system with no clinical or laboratory evidence of extrapulmonary involvement. Repeated clinical, radiographic, and pulmonary function evaluations over an 18-month follow-up period have shown complete resolution of pulmonary lesions without residual abnormalities.

  14. Introducing Bt Gene Into Maize With Ovary Injection

    Institute of Scientific and Technical Information of China (English)

    丁群星; 谢友菊; 戴景瑞; 米景九; 李太元; 田颖川; 乔利亚; 莽克强; 刘宝兰; 王音; 冯平章

    1994-01-01

    It is reported here that Bt toxin gene has been successfully transferred into maize inbred line by ovary injection for the first time both at home and abroad. One transgenic plant (To) has been confirmed by Southern blotting and PCR test, and 71 progenies (T1) from T0 have been obtained through self-pollination. Of these 71 progenies, seven plants demonstrated positive results in the PCR test; four were used to feed Asian corn borer, and certain effect of insect-resistance was observed. The experiments on the ovary injection in Hainan Province have also been repeated, thus providing new chance to the application of genetic engineering to the maize improvement.

  15. Flow Injection and Atomic Absorption Spectrometry (FI-AAS) -

    DEFF Research Database (Denmark)

    Hansen, Elo Harald

    1996-01-01

    One of the advantages of the flow injection (FI) concept is that it is compatible with virtually all detection techniques. Being a versatile vehicle for enhancing the performance of the individual detection devices, the most spectacular results have possibly been obtained in conjunction with atomic...... the point of sample injection/introduction to the point of detection. Hence, in FI-fAAS this feature allows not only to obtain improved repeatability but also improved accuracy, and because the wash to sample ratio is high it permits the handling of samples with elevated salt contents - which...

  16. Two cases of Robertsonian translocations in oligozoospermic males and their consequences for pregnancies induced by intracytoplasmic sperm injection

    NARCIS (Netherlands)

    R.F.A. Weber (Robert); F.J. Los; N.S. den Hollander (Nicolette); M. Dhont; M.H. Pieters; J.O. van Hemel; P.A. in 't Veld

    1997-01-01

    textabstractTwo case histories are presented documenting structural chromosome abnormalities in infertile males. The abnormalities were detected only after application of intracytoplasmic sperm injection (ICSI) was repeatedly unsuccessful or resulted in an abnormal preg

  17. Two cases of Robertsonian translocations in oligozoospermic males and their consequences for pregnancies induced by intracytoplasmic sperm injection

    NARCIS (Netherlands)

    P.A. In't Veld (Peter); R.F.A. Weber (Rob); F.J. Los; N.S. den Hollander (Nicolette); M. Dhont; M.H.E.C. Pieters (Math H. E.); J.O.V. Hemel (Jan O. Van)

    1997-01-01

    textabstractTwo case histories are presented documenting structural chromosome abnormalities in infertile males. The abnormalities were detected only after application of intracytoplasmic sperm injection (ICSI) was repeatedly unsuccessful or resulted in an abnormal pregnancy. A mosaic Robertsonian t

  18. MR cartilage imaging in assessment of the regenerative power of autologous peripheral blood stem cell injection in knee osteoarthritis

    Directory of Open Access Journals (Sweden)

    Khaled A. Ahmad

    2014-09-01

    Conclusion: Limited good level of evidence showed that repeated intra-articular injections of autologous PBSC resulted in an improvement of the quality of articular cartilage repair and physical function as observed by MRI and clinical assessment.

  19. Experimental Evaluation of Permeability of Coal in Supercritical CO2 and N2 Injection Under Stress and Strain Restricted Conditions

    National Research Council Canada - National Science Library

    KIYAMA, Tamotsu; NISHIMOTO, Soshi; FUJIOKA, Masaji; XUE, Zique; MIYAZAWA, Daisuke; ISHIJIMA, Yoji

    2010-01-01

    .... In this study, the strain and stress constraint conditions were created in-laboratory and N2 and supercritical CO2 were injected repeatedly in a coal specimen for observation of the permeability, Vp...

  20. Two cases of Robertsonian translocations in oligozoospermic males and their consequences for pregnancies induced by intracytoplasmic sperm injection

    NARCIS (Netherlands)

    R.F.A. Weber (Robert); F.J. Los; N.S. den Hollander (Nicolette); M. Dhont; M.H. Pieters; J.O. van Hemel; P.A. in 't Veld

    1997-01-01

    textabstractTwo case histories are presented documenting structural chromosome abnormalities in infertile males. The abnormalities were detected only after application of intracytoplasmic sperm injection (ICSI) was repeatedly unsuccessful or resulted in an abnormal preg

  1. Incorporation of salinity in Water Availability Modeling

    Science.gov (United States)

    Wurbs, Ralph A.; Lee, Chihun

    2011-10-01

    SummaryNatural salt pollution from geologic formations in the upper watersheds of several large river basins in the Southwestern United States severely constrains the use of otherwise available major water supply sources. The Water Rights Analysis Package modeling system has been routinely applied in Texas since the late 1990s in regional and statewide planning studies and administration of the state's water rights permit system, but without consideration of water quality. The modeling system was recently expanded to incorporate salinity considerations in assessments of river/reservoir system capabilities for supplying water for environmental, municipal, agricultural, and industrial needs. Salinity loads and concentrations are tracked through systems of river reaches and reservoirs to develop concentration frequency statistics that augment flow frequency and water supply reliability metrics at pertinent locations for alternative water management strategies. Flexible generalized capabilities are developed for using limited observed salinity data to model highly variable concentrations imposed upon complex river regulation infrastructure and institutional water allocation/management practices.

  2. The use of salinity contrast for density difference compensation to improve the thermal recovery efficiency in high-temperature aquifer thermal energy storage systems

    NARCIS (Netherlands)

    van Lopik, J.H.; Hartog, N.; Zaadnoordijk, Willem Jan

    2016-01-01

    The efficiency of heat recovery in high-temperature (>60 °C) aquifer thermal energy storage (HT-ATES) systems is limited due to the buoyancy of the injected hot water. This study investigates the potential to improve the efficiency through compensation of the density difference by increased salinity

  3. Excretory, secretory, and tissue residues after label and extra-label administration of flunixin meglumine to saline or lipopolysaccharide-exposed dairy cows

    Science.gov (United States)

    Twenty lactating dairy cattle were intravenously infused with either lipopolysaccharide (n = 10) or sterile saline (n = 10). Five cattle in each group received 3 doses of flunixin meglumine administered by either IV infusion or IM injection at 24 h intervals. Milk, urine, and tissues were collected....

  4. Roles of the periaqueductal gray in descending facilitatory and inhibitory controls of intramuscular hypertonic saline induced muscle nociception.

    Science.gov (United States)

    Lei, Jing; Sun, Tao; Lumb, Bridget M; You, Hao-Jun

    2014-07-01

    Despite the importance of the periaqueductal gray (PAG) in the modulation of nociception and pain, many aspects of the roles of the different columns of the PAG in descending controls: facilitation and inhibition, are not understood. Employing a tonic muscle pain model established by i.m. injection of 5.8% saline into the gastrocnemius muscle, we now report the results of investigations designed to explore any differences in Fos expression in the different functional columns of the PAG in male Sprague-Dawley rats. In a second series of experiments, effects of the PAG on descending control of spinally-organized nociception were assessed by measuring hind paw withdrawal reflexes to noxious mechanical and heat stimulation before and after electrolytic lesion of specific columns of the PAG. Our results show that Fos expression within different columns of the PAG increases significantly and differentially following i.m. injection of 5.8% saline. The mean number of Fos positive neurons in the dorsolateral (dl), lateral (l), dorsomedial (dm) PAG elicited by i.m. injection of 5.8% saline reached a peak at 4h with a gradual decrease over time, whereas the maximum number of Fos-positive neurons in the ventrolateral (vl) PAG was observed 8h after i.m. injection. Contralateral lesion of the dl PAG significantly depressed ipsilateral secondary mechanical hyperalgesia in intramuscularly induced (5.8% saline) nociception (P0.05). By contrast, contralateral lesion of the vl PAG completely blocked the occurrence of ipsilateral heat hypoalgesia (P0.05). In conclusion, functions of specific columns of the PAG in the control of spinal nociceptive activities are not homogeneous. It is suggested that, in this muscle pain model, the dl PAG and vl PAG participate in descending facilitation and inhibition of nociception, respectively.

  5. Determination of iron in highly-saline matrices by FIA-ICP-MS

    DEFF Research Database (Denmark)

    Andersen, Jens Enevold Thaulov

    Analysis of iron by inductively-coupled-plasma mass-spectrometry (ICP-MS) may be significantly improved by applying a protocol of flow-injection analysis. The iron species of the sample was preconcentrated by an ammonia buffer at pH = 9.2 on a filterless nylon-knotted reactor, and the adsorbed...... species were subsequently eluted by hydrochloric acid and analysed by ICP-MS. During the FIA step of preconcentration, a high degree of salinity did not influence the adsorption mechanism of iron, which may be related to formation of iron-hydroxide complexes at the sites of amide moieties of the nylon...

  6. Steroid injections - tendon, bursa, joint

    Science.gov (United States)

    ... medlineplus.gov/ency/article/007678.htm Steroid injections - tendon, bursa, joint To use the sharing features on ... painful. It can be injected into a joint, tendon, or bursa. Description Your health care provider inserts ...

  7. Amphotericin B Lipid Complex Injection

    Science.gov (United States)

    Amphotericin B lipid complex injection is used to treat serious, possibly life-threatening fungal infections in people who did not respond ... to tolerate conventional amphotericin B therapy. Amphotericin B lipid complex injection is in a class of medications ...

  8. Injection treatments for patellar tendinopathy

    NARCIS (Netherlands)

    van Ark, Mathijs; Zwerver, Johannes; van den Akker-Scheek, Inge

    2011-01-01

    Objective Injection treatments are increasingly used as treatment for patellar tendinopathy. The aim of this systematic review is to describe the different injection treatments, their rationales and the effectiveness of treating patellar tendinopathy. Methods A computerised search of the Medline,

  9. Usefulness of fluoroscopy-guided intra-articular injection of the knee

    Energy Technology Data Exchange (ETDEWEB)

    Myung, Jae Sung; Lee, Joon Woo [Seoul National University Bundang Hospital, Seongnam (Korea, Republic of); Lee, Ji Yeon [Kangwon National University College of Medicine, Chuncheon (Korea, Republic of)] (and others)

    2007-06-15

    To determine the accuracy of the intra-articular location of hyaluronic acid injection using a blind approach and to establish the usefulness of fluoroscopy-guided intra-articular injection. A fluoroscopy unit was used for 368 intra-articular injections of hyaluronic acid to 93 knees in 65 patients. Initially, blind needle positioning was conducted on the fluoroscopy table. The failure rate of the blind approach among the 368 injections was evaluated, and a relationship between the Kellgren-Lawrence grade (K-L grade) and the incidence of repeated failures using the blind approach was determined for injections to 52 knees in 37 patients who received a complete cycle of injections (five consecutive injections with a one-week interval between injections). Using a blind approach, 298 of 368 trials (81.2%) resulted in a needle tip being placed in an intra-articular location, while 70 of 368 trials resulted in an extra-articular placement of the needle tip. Among 52 knees to which a complete cycle of injection (five consecutive injections with a one-week interval between injections) was administered, repeated failure of intra-articular placement using the blind approach was seen for 18 knees (34.6%); a more severe K-L grade assigned was associated with a higher rate of repeated failure. However, the trend was not statistically significant based on the Chi-squared test ({rho} value = 0.14). Fluoroscopy-guided needle placement may be helpful to ensure therapeutic intra-articular injection of the knee.

  10. Reduced-Order Model for Leakage Through an Open Wellbore from the Reservoir due to Carbon Dioxide Injection

    Energy Technology Data Exchange (ETDEWEB)

    Pan, Lehua [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Oldenburg, Curtis M. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2017-07-26

    Potential CO2 leakage through existing open wellbores is one of the most significant hazards that need to be addressed in geologic carbon sequestration (GCS) projects. In the framework of the National Risk Assessment Partnership (NRAP) which requires fast computations for uncertainty analysis, rigorous simulation of the coupled wellbore-reservoir system is not practical. We have developed a 7,200-point look-up table reduced-order model (ROM) for estimating the potential leakage rate up open wellbores in response to CO2 injection nearby. The ROM is based on coupled simulations using T2Well/ECO2H which was run repeatedly for representative conditions relevant to NRAP to create a look-up table response-surface ROM. The ROM applies to a wellbore that fully penetrates a 20-m thick reservoir that is used for CO2 storage. The radially symmetric reservoir is assumed to have initially uniform pressure, temperature, gas saturation, and brine salinity, and it is assumed these conditions are held constant at the far-field boundary (100 m away from the wellbore). In such a system, the leakage can quickly reach quasi-steady state. The ROM table can be used to estimate both the free-phase CO2 and brine leakage rates through an open well as a function of wellbore and reservoir conditions. Results show that injection-induced pressure and reservoir gas saturation play important roles in controlling leakage. Caution must be used in the application of this ROM because well leakage is formally transient and the ROM lookup table was populated using quasi-steady simulation output after 1000 time steps which may correspond to different physical times for the various parameter combinations of the coupled wellbore-reservoir system.

  11. Simulation of CO2 Sequestration at Rock Spring Uplift, Wyoming: Heterogeneity and Uncertainties in Storage Capacity, Injectivity and Leakage

    Energy Technology Data Exchange (ETDEWEB)

    Deng, Hailin [Los Alamos National Laboratory; Dai, Zhenxue [Los Alamos National Laboratory; Jiao, Zunsheng [Wyoming State Geological Survey; Stauffer, Philip H. [Los Alamos National Laboratory; Surdam, Ronald C. [Wyoming State Geological Survey

    2011-01-01

    Many geological, geochemical, geomechanical and hydrogeological factors control CO{sub 2} storage in subsurface. Among them heterogeneity in saline aquifer can seriously influence design of injection wells, CO{sub 2} injection rate, CO{sub 2} plume migration, storage capacity, and potential leakage and risk assessment. This study applies indicator geostatistics, transition probability and Markov chain model at the Rock Springs Uplift, Wyoming generating facies-based heterogeneous fields for porosity and permeability in target saline aquifer (Pennsylvanian Weber sandstone) and surrounding rocks (Phosphoria, Madison and cap-rock Chugwater). A multiphase flow simulator FEHM is then used to model injection of CO{sub 2} into the target saline aquifer involving field-scale heterogeneity. The results reveal that (1) CO{sub 2} injection rates in different injection wells significantly change with local permeability distributions; (2) brine production rates in different pumping wells are also significantly impacted by the spatial heterogeneity in permeability; (3) liquid pressure evolution during and after CO{sub 2} injection in saline aquifer varies greatly for different realizations of random permeability fields, and this has potential important effects on hydraulic fracturing of the reservoir rock, reactivation of pre-existing faults and the integrity of the cap-rock; (4) CO{sub 2} storage capacity estimate for Rock Springs Uplift is 6614 {+-} 256 Mt at 95% confidence interval, which is about 36% of previous estimate based on homogeneous and isotropic storage formation; (5) density profiles show that the density of injected CO{sub 2} below 3 km is close to that of the ambient brine with given geothermal gradient and brine concentration, which indicates CO{sub 2} plume can sink to the deep before reaching thermal equilibrium with brine. Finally, we present uncertainty analysis of CO{sub 2} leakage into overlying formations due to heterogeneity in both the target saline

  12. Hydrocephalus induced via intraventricular kaolin injection in adult rats.

    Science.gov (United States)

    Shaolin, Z; Zhanxiang, W; Hao, X; Feifei, Z; Caiquan, H; Donghan, C; Jianfeng, B; Feng, L; Shanghang, S

    2015-01-01

    Hydrocephalus is a common neurological disease in humans, but a uniform and particularly effective hydrocephalic animal model amenable to proper appraisal and deep study has not yet been established. In this study, we attempted to construct a high-efficiency model of hydrocephalus via intraventricular kaolin injection. Adult male Sprague-Dawley rats were randomly divided into 2 groups: the control group (n = 15) and the experimental group (n = 30). Kaolin was injected into the lateral ventricle of experimental animals. Control rats underwent the same procedure but received sterile saline injection instead of kaolin. All animals with kaolin injection into the lateral ventricle developed hydrocephalus according to magnetic resonance imaging (MRI) results (success rate up to 100%). Also, the Morris water maze (MWM) test demonstrated disturbed spatial learning and memory. Furthermore, there were significant differences between groups with respect to the histological changes in the periventricular tissue. Our results indicate that experimental hydrocephalus induced by lateral ventricle injection of kaolin in adult rats is feasible and may be widely used.

  13. Early warning of freshwater salinization due to upward brine displacement by species transport simulations combined with a hydrochemical genesis model

    Science.gov (United States)

    Langer, Maria; Kühn, Michael

    2016-04-01

    Shallow groundwater resources could be possibly affected by intruding brines, which are displaced along hydraulically conductive faults as result of subsurface activities like CO2 injection. To avoid salinization of potable freshwater aquifers an early detection of intruding saline water is necessary, especially in regions where an initial geogenic salinization already exists. Our study is based on work of Tillner et al. [1] and Langer et al. [2] who investigated the influence of permeable fault systems on brine displacement for the prospective storage site Beeskow-Birkholz in the Northeast German Basin. With a 3D regional scale model considering the deep groundwater system, they demonstrated that the existence of hydraulically conductive faults is not necessarily an exclusion criterion for potential injection sites, because salinization of shallower aquifers strongly depends on the effective damage zone volume, the initial salinity distribution and overlying reservoirs [2], while permeability of fault zones does not influence salinization of shallower aquifers significantly [1]. Here we extracted a 2D cross section regarding the upper 220 m of the study area mainly represented by shallow freshwater aquifers, but also considering an initial geogenic salinization [3]. We took flow rates of the intruding brines from the previous studies [2] and implemented species transport simulations with the program code SHEMAT [4]. Results are investigated and interpreted with the hydrochemical genesis model GEBAH [5] which has been already applied as early warning of saltwater intrusions into freshwater aquifers and surface water [6]. GEBAH allows a categorization of groundwater by the ion ratios of the dissolved components and offers a first indicative determination for an existence and the intensity of saline water intrusion in shallow groundwater aquifer, independent of the concentration of the solution. With our model we investigated the migration of saline water through a

  14. Using the Electromagnetic Induction Method to Connect Spatial Vegetation Distributions with Soil Water and Salinity Dynamics on Steppe Grassland

    Science.gov (United States)

    Jiang, Z.; Li, X.; Wu, H.

    2014-12-01

    In arid and semi-arid areas, plant growth and productivity are obviously affected by soil water and salinity. But it is not easy to acquire the spatial and temporal dynamics of soil water and salinity by traditional field methods because of the heterogeneity in their patterns. Electromagnetic induction (EMI), for its rapid character, can provide a useful way to solve this problem. Grassland dominated by Achnatherum splendens is an important ecosystem near the Qinghai-Lake watershed on the Qinghai-Tibet Plateau in northwestern China. EMI surveys were conducted for electrical conductivity (ECa) at an intermediate habitat scale (a 60×60 m experimental area) of A. splendens steppe for 18 times (one day only for one time) during the 2013 growing season. And twenty sampling points were established for the collection of soil samples for soil water and salinity, which were used for calibration of ECa. In addition, plant species, biomass and spatial patterns of vegetation were also sampled. The results showed that ECa maps exhibited distinctly spatial differences because of variations in soil moisture. And soil water was the main factor to drive salinity patterns, which in turn affected ECa values. Moreover, soil water and salinity could explain 82.8% of ECa changes due to there was a significant correlation (Psalinity. Furthermore, with higher ECa values closer to A. splendens patches at the experimental site, patterns of ECa images showed clearly temporal stability, which were extremely corresponding with the spatial pattern of vegetation. A. splendens patches that accumulated infiltrating water and salinity and thus changed long-term soil properties, which were considered as "reservoirs" and were deemed responsible for the temporal stability of ECa images. Hence, EMI could be an indicator to locate areas of decreasing or increasing of water and to reveal soil water and salinity dynamics through repeated ECa surveys.

  15. Effects of salinity and ozone, individually and in combination, on the growth and ion contents of two chickpea (Cicer arietinum L.) varieties

    Energy Technology Data Exchange (ETDEWEB)

    Welfare, Karen; Yeo, A.R.; Flowers, T.J

    2002-12-01

    Plants exposed to ozone, under high salinity conditions, further decline in growth. - The aim of this study was to determine the effects of ozone and salinity, singly and in combination, on the growth and ion contents of two chickpea (Cicer arietinum L.) varieties. Chickpea plants were grown in non-saline and saline conditions, with and without a repeated exposure to ozone. Salinity at a concentration of 30 mM NaCl caused a substantial reduction in plant height, number of leaves and the dry weights of the leaves, stems and roots. Biomass allocation to the leaves increased, predominantly at the expense of the roots. Ozone at a concentration of 85 nmol mol{sup -1} for 6 h per day for 25 days reduced plant height and dry weights but had no effect on leaf number. The results show substantial effects of salinity and ozone on chickpea growth and ion concentrations. When ozonated plants are grown in the presence of salinity, further reductions in growth occur.

  16. The complementary role of SMOS sea surface salinity observations for estimating global ocean salinity state

    Science.gov (United States)

    Lu, Zeting; Cheng, Lijing; Zhu, Jiang; Lin, Renping

    2016-06-01

    Salinity is a key ocean state property, changes in which reveal the variation of the water cycle and the ocean thermohaline circulation. However, prior to this century, in situ salinity observations were extremely sparse, which decreased the reliability of simulations of ocean general circulation by ocean and climate models. In 2009, sea surface salinity (SSS) observations covered the global ocean via the European Space Agency's Soil Moisture and Ocean Salinity (SMOS) mission, and several versions of global SSS products were subsequently released. How can these data benefit model performance? Previous studies found contradictory results. In this work, we assimilated SMOS-SSS data into the LASG/IAP Climate system Ocean Model (LICOM) using the Ensemble Optimum Interpolation (EnOI) assimilation scheme. To assess and quantify the contribution of SMOS-SSS data to model performance, several tests were conducted. The results indicate that the CECOS/CATDS 2010.V02 SMOS-SSS product can significantly improve model simulations of sea surface/subsurface salinity fields. This study provides the basis for the future assimilation of SMOS-SSS data for short-range climate forecasting.

  17. Effect of Initial Soluble Salt Composition of Saline Soil on Salinity Tolerance of Barley Plant

    Institute of Scientific and Technical Information of China (English)

    SHENQI-RONG; LIUZHAO-PU; 等

    1991-01-01

    A pot experiment was carried out on a marine saline soil to study the effect of initial soluble Na/Ca ratio of saline soil on the salinity tolerance of barley plant.The results showed that (1) the Na/Ca ratio affected significantly the dry weight of the plant at an earlier stage of growth,the critical values of initial Na/Ca ratio at which the plant could grow normally on soils containing salts of 2.5,3.5 and 4.5g kg-1 were 30,20 and 15,respectively;(2)smaller Na/Ca ratio resulted in a considerable decrease in Na accumulation but a great increase in K accumulation in the barley plant;and (3) the plasmallema of barley leaf were badly injured when the Na/Ca ratio was more than 30 and the increase of Na content of plant caused an exudation of K from the leaf cells.Some critical indexes were suggested for the cultivation of barley plant on marine saline soils and could be used as reference in the biological reclamation of marine saline soils.

  18. Acupuncture Injection Combined with Electrokinetic Injection for Polydimethylsiloxane Microfluidic Devices

    Directory of Open Access Journals (Sweden)

    Ji Won Ha

    2017-01-01

    Full Text Available We recently reported acupuncture sample injection that leads to reproducible injection of nL-scale sample segments into a polydimethylsiloxane (PDMS microchannel for microchip capillary electrophoresis. The advantages of the acupuncture injection in microchip capillary electrophoresis include capability of minimizing sample loss and voltage control hardware and capability of introducing sample plugs into any desired position of a microchannel. However, the challenge in the previous study was to achieve reproducible, pL-scale sample injections into PDMS microchannels. In the present study, we introduce an acupuncture injection technique combined with electrokinetic injection (AICEI technique to inject pL-scale sample segments for microchip capillary electrophoresis. We carried out the capillary zone electrophoresis (CZE separation of FITC and fluorescein, and the mixture of 10 μM FITC and 10 μM fluorescein was separated completely by using the AICEI method.

  19. Acupuncture Injection Combined with Electrokinetic Injection for Polydimethylsiloxane Microfluidic Devices

    Science.gov (United States)

    2017-01-01

    We recently reported acupuncture sample injection that leads to reproducible injection of nL-scale sample segments into a polydimethylsiloxane (PDMS) microchannel for microchip capillary electrophoresis. The advantages of the acupuncture injection in microchip capillary electrophoresis include capability of minimizing sample loss and voltage control hardware and capability of introducing sample plugs into any desired position of a microchannel. However, the challenge in the previous study was to achieve reproducible, pL-scale sample injections into PDMS microchannels. In the present study, we introduce an acupuncture injection technique combined with electrokinetic injection (AICEI) technique to inject pL-scale sample segments for microchip capillary electrophoresis. We carried out the capillary zone electrophoresis (CZE) separation of FITC and fluorescein, and the mixture of 10 μM FITC and 10 μM fluorescein was separated completely by using the AICEI method. PMID:28326222

  20. Energy Spread of the Proton Beam in the Fermilab Booster at its Injection Energy

    Energy Technology Data Exchange (ETDEWEB)

    Bhat, C. M. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Chase, B. E. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Chaurize, S. J. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Garcia, F. G. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Seiya, K. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Pellico, W. A. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Sullivan, T. M. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Triplett, A. K. [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

    2015-04-27

    We have measured the energy spread of the Booster beam at its injection energy of 400 MeV by three different methods: (1) creating a notch of about 40 nsec wide in the beam immediately after multiple turn injection and measuring the slippage time required for high and low momentum particles for a grazing touch in line-charge distribution, (2) injecting partial turn beam and letting it to debunch, and (3) comparing the beam profile monitor data with predictions from MAD simulations for the 400 MeV injection beam line. The measurements are repeated under varieties of conditions of rf systems in the ring and in the beam transfer line.