occurrence and analysis of pharmaceuticals in the environment
Fate of Pharmaceuticals in the Environment and in Water Treatment Systems - Chapter 4 potx
... within 10 days The degradation of the reference substances fulfilled the quality criteria set by the guidelines (i.e., the inoculum was viable and active) The elimination of organic carbon in the ... 24, 48, and 72 hours The pH value was measured at the beginning and at the end of the test For the study with dimeglumine gadopentetate and gadofosveset trisodium, an incubating apparatus (Abimed ... concentration, on the one hand, and the experimental determination of a no-effect concentration (NOEC) of the pharmaceutical on the other hand.3,4 Because the aquatic environment represents the primary...
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Báo cáo hóa học: " Carbon-coated iron oxide nanoparticles as contrast agents in magnetic resonance imaging" potx
... the nuclear spins of the protons in the water molecules in the area of interest Under a given external magnetic field (B), the nuclear spins of the protons align with the field, giving rise to ... and put them into microfuge tubes for imaging One example of the MR images is shown in Figure In MRI, the signal recorded during the scan is related to the magnetic relaxation processes of the nuclear ... bonding of carbon on the nanoparticle surfaces was checked by noting the C=O and C=C vibrations in Fourier transform infrared spectra The spin-lattice relaxation process [T1] and spin-spin relaxation...
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Formulation of superparamagnetic iron oxides by nanoparticles of biodegradable polymer for magnetic resonance imaging (MRI)
... magnetization of the IOs and the diffusion of the water molecules in the surrounding medium Depending on the rate of diffusion of the water molecules and the size of IOs, they can be operating in the MAR ... direction of the spins rather than flipping them over to the other side of the XY plane Gradient refocusing of the spins takes considerably less time than 180 o RF pulse refocusing The disadvantage of ... [10] Two main factors that influence the relaxation rates are the magnetization of the IOs and the diffusion of the water molecules in the surrounding medium The magnetization of the IOs is directly...
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Báo cáo y học: "Voxel-based structural magnetic resonance imaging (MRI) study of patients with early onset schizophrenia" potx
... rating scale in the early onset schizophrenia group The left side of the figure represents the right side of the brain; the z coordinate for each axial slice in the standard space of Talairach and ... relationship between the severity of negative symptoms and the increased GM volume in the right thalamus The findings of a GM volume reduction and CSF increase in individuals with EOS in this study ... with the reduced GM volume in the bilateral posterior cingulate gyrus, with the increased WM volume in the cerebellum (vermis region), and with the reduced WM volume in the brain stem and the...
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Báo cáo y học: "Cartilage markers and their association with cartilage loss on magnetic resonance imaging in knee osteoarthritis: the Boston Osteoarthritis Knee Study" doc
... AR47785, and AG18393 The study sponsor was not involved in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the ... and skyline views) and if on any of these views they had a definite osteophyte in the symptomatic knee (either tibiofemoral or patellofemoral), they were eligible for the study In addition, they ... progression MRI of the knee has the advantage of covering the whole joint in one examination, meaning that the cartilage defects in the joint can be visualized directly, regardless of their location...
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Magnetic resonance imaging techniques for contrast enhanced cellular and molecular imaging
... 2d-radial and 3d stack -of- radial sampling in MUTE 3.11 Point-spread-functions illustrate blurring of a single point in the center of image space as a result of radial sampling 3.12 (A) Scheme of a ... of -cells in the pathogenesis of diabetes has attracted great interest in the use of molecular and cellular imaging techniques for in- vivo detection of their function and physiology A host of ... equal the rate of withdrawal divided by the number of spheres in the withdrawn blood volume By dissecting the pancreatic tissue and counting the number of spheres in the microvasculature, the blood...
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Báo cáo y học: "Autologous chondrocyte implantation for cartilage repair: monitoring its success by magnetic resonance imaging and histology" ppt
... the integrity and contour of the articulating surface, the degree of metachromasia with safranin O staining, the extent of chondrocyte cluster formation, the presence of vascularisation or mineralisation ... to influence mechanical functioning of the tissue and is often of most interest to observers A smooth surface is important for articulation and in the transfer of incident loads throughout the ... intervals of 76 and 110 days On MRI, the thickness of the graft cartilage appeared the same as that of the adjacent cartilage in 68% of patients The surface of the articular cartilage was smooth in...
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báo cáo khoa học: " N-hexanoyl chitosan stabilized magnetic nanoparticles: Implication for cellular labeling and magnetic resonance imaging" pps
... pattern of MC-IOPs, which is in exact/or in good agreement with the XRD results The ring type SAD pattern consists of a cubic inverse spinal structure of magnetite and it indicates good crystalinity ... demonstrates the side scattering (SSC) distribution of cell shifted with increasing concentration of the MC-IOPs, which means an increase in granularity with increasing MC-IOPs concentration This finding ... imaging It is also obvious that the thickness of the stabilizing layer (here MC), when collapsed on the surface of the IOPs, is negligible Therefore, the difference in diameter measurements obtained...
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Báo cáo y học: "Cerebral misery perfusion diagnosed using hypercapnic blood-oxygenation-level-dependent contrast functional magnetic resonance imaging: a case report" potx
... outlines of radiological procedures incorporated in the manuscript All authors read and approved the final manuscript Competing interests The authors declare that they have no competing interests ... institution The use of this technique has been validated in volunteers and, increasingly, in patients [6] The result of this scan showed a marked impairment in our patient’s CO2 reactivity in the hemisphere ... analyses evaluating the efficacy of the procedure in patients with radiologically confirmed CMP The data from STLCOS regarding the prognosis in misery perfusion and emerging imaging techniques have...
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Báo cáo y học: "Diffusion-weighted magnetic resonance imaging for predicting the clinical outcome of comatose survivors after cardiac arrest: a cohort study" pptx
... outcome The degree of the changes of the DWI and the ADC signal intensity correlates with the severity of neuronal injury because modest changes reflect signs of ongoing lesions, and a severe drop of ... within h after the event, and the scans were read as normal for 15 patients The CT scans of the other five patients were interpreted as having brain edema, and they had an unfavourable outcome In ... artery, and these arteries intermingle for anastomosis in the medial parietal lobe For both arteries, the occipital lobe and the precuneus are the last border zone of the brain artery network [30] Therefore,...
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Microgel iron oxide nanoparticles for tracking of stem cells through magnetic resonance imaging
... sequence of adhesion steps is initiated by surface tethering, which are mainly mediated by P and E selectins and their ligands Following tethering, the captured cells roll and encounter chemokines, ... activity coincides with lengthening of telomeres by enzymes, thereby maintaining self-renewal of cells such as the ESC 30 Introduction 1.2.4 Homing and Migration There has been emerging evidence ... stimulus of the innate immune response, but it can be moderated by complement regulatory proteins (CRP) in the eye and the fetus Two main CPR, the membrane cofactor protein and CD59, are found in the...
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Tài liệu Magnetic resonance imaging and gynecological devices doc
... losses of signal in the initial part of the tubes and in the uterine cornu region [15] 3.2.3 Contraceptive implant The Implanon® (Organon USA Inc.) is a contraceptive implant approved by the FDA in ... dislocation, torsion or overheating of these devices, which in turn can provoke injuries [8] Any complaint of pelvic pain should result in the immediate suspension of the exam The most common, though ... devices The increasing use of MRI implied a greater demand for information regarding the safety of its application to patients with implants or other medical devices As such, the Food and Drug Administration...
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Tài liệu Functional Magnetic Resonance Imaging – Advanced Neuroimaging Applications Edited by Rakesh Sharma doc
... (Hendry & Reid, 2000) The axons of all these ganglion cells exit the eye, forming the optic nerve and synapse in the midbrain Since the diameter of the optic nerve and the number of the ganglion cell ... physics in order to appreciate the complexities and intricacies of the process This in turn would help minimize errors and confounds in the results The main limitations of interpretation lies in the ... parafoveal retina of the achromat 4.1.2 Albinism Albinism is characterized by a systematic misrouting of the connections between the retina and the visual cortex The ascending projection in an albino is...
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Báo cáo hóa học: " Adenoviruses with an avb integrin targeting moiety in the fiber shaft or the HI-loop increase tumor specificity without compromising antitumor efficacy in magnetic resonance imaging of colorectal cancer metastases" pdf
... moieties in the HI loop of the fiber or in the KKTK domain of the fiber [30] Furthermore, mutation of the KKTK domain ablated binding to HSPGs and led to reduced liver cell transduction and improved ... motif into the HI loop of the fiber knob (Ad5lucRGD) or into the fiber shaft KKTK domain (AdTLRGDK) increased the expression of transgene in all tested cell lines in comparison with AdTL Interestingly, ... Laboratory, Haartman Institute and Finnish Institute of Molecular Medicine, University of Helsinki, Finland 2HUSLAB, Helsinki University Central Hospital, Finland 3Department of Obstetrics and Gynecology,...
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báo cáo hóa học:" Dynamic magnetic resonance imaging in assessing lung function in adolescent idiopathic scoliosis: a pilot study of comparison before and after posterior spinal fusion" doc
... the line drawn tangential to the highest point of the diaphragm and a line parallel to the lung apex (Fig 3a and 3b) All the lung volume, chest wall and diaphragmatic dimensions in the right and ... Chicago, Illinois) was used in the analysis Results The spatial resolution of the reformatted axial and coronal images of the chest was considered to be of diagnostic quality in all subjects The fast ... allows good delineation of the lung volume, the chest wall and the diaphragm Figure sectional areas terized method lung volumes by lungs and summing crossMeasurement ofof delineating the a semi-automated...
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Báo cáo hóa học: "Research Article Independent Component Analysis for Magnetic Resonance Image Analysis" pot
... included for analysis in [18] The difficulty of analyzing the CSF in [18] may have resulted from the inability of UC-ICA in dealing with insufficient MR band images In order to perform quantitative analysis, ... of the decision surface specified by the hyperplane On the other hand, if ξ i > 1, the ith data sample vector x i falls on the wrong side of its decision surface In light of the mathematical interpretation, ... inevitable phenomenon is caused by the use of random initial projection vectors by the ICA and the lack of ICs resulting from the inherent nature in the OC-ICA In order to resolve this dilemma,...
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Pocket Atlas of Sectional Anatomy Computed Tomography and Magnetic Resonance Imaging - Volume II Thorax, Heart, Abdomen, and Pelvis (Part 1 ) pptx
... Usage subject to terms and conditions of license 84 132 150 162 164 166 168 Contents VIII Pelvis MRI MRI MRI MRI MRI MRI MRI of of of of of of of the the the the the the the Female Pelvis—Axial ... accordance with the state of knowledge at the time of production of the book Nevertheless, this does not involve, imply, or express any guarantee or responsibility on the part of the publishers in respect ... Medicine is an everchanging science undergoing continual development Research and clinical experience are continually expanding our knowledge, in particular our knowledge of proper treatment and...
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Pocket Atlas of Sectional Anatomy Computed Tomography and Magnetic Resonance Imaging - Volume II Thorax, Heart, Abdomen, and Pelvis (Part 2 ) doc
... hepatic vein Left branch of portal vein Right branch of portal vein Left hepatic vein Intermediate hepatic vein Splenic vein Portal vein Superior mesenteric vein Jejunal and ileal veins Moeller, ... Descending aorta Spleen Splenic artery and vein Pancreas (tail) Suprarenal gland Ureter Left kidney 35 Sympathetic trunk 36 Descending colon 37 External abdominal oblique muscle 38 Internal abdominal ... abdominis muscle Internal abdominal oblique muscle Right ovary Inferior epigastric artery and vein Uterus Ileum Sigmoid colon (distal part) Rectus abdominis muscle External iliac artery and vein...
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