One the one hand, capillary permeability to water is a well-defined concept in microvascular physiology, and linearly relates the net convective or diffusive mass fluxes (by unit area) to the differences in pressure or concentration, respectively, that drive them through the vessel wall. On the other hand, the permeability coefficient is a central parameter introduced when modeling diffusible tracers transfer from blood vessels to tissue in the framework of compartmental models, in such a way that it is implicitly considered as being identical to the capillary permeability. Despite their simplifying assumptions, such models are at the basis of blood flow quantification by H215O Positron Emission Tomography. In the present paper, we use fluid dynamic modeling to compute the transfers of H215O between the blood and brain parenchyma at capillary scale. The analysis of the so-obtained kinetic data by the Renkin-Crone model, the archetypal compartmental model, demonstrates that, in this framework, ...
Introduction: Early recognition of viable myocardium is of great clinical importance after acute myocardial infarction (AMI). Delayed contrast-enhanced magnetic resonance imaging (DCE-CMR) has been validated extensively for the detection of viability. An alternative method for detecting viability is the perfusable tissue index (PTI), a positron emission tomography (PET) derived parameter, which is inversely related to the extent of myocardial scar (nonperfusable tissue).. Aims: To investigate the predictive value of PTI on recovery of LV function after percutaneous coronary intervention (PCI) for AMI.. Methods: Twenty-six patients with AMI successfully treated by PCI were included. Subjects were examined one week and three months after AMI with [15O]H2O PET and DCE-CMR to assess PTI, regional function and scar. Viability was defined as recovery of systolic wall thickening (SWT) ≥ 3.0 mm at follow-up.. Results: A total of 396 segments were available for serial analysis. At baseline, 166 ...
Methods of tissue engineering, and more particularly methods and compositions for generating various vascularized 3D tissues, such as 3D vascularized embryoid bodies and organoids are described. Certain embodiments relate to a method of generating functional human tissue, the method comprising embedding an embryoid body or organoid in a tissue construct comprising a first vascular network and a second vascular network, each vascular network comprising one or more interconnected vascular channels; exposing the embryoid body or organoid to one or more biological agents, a biological agent gradient, a pressure, and/or an oxygen tension gradient, thereby inducing angiogenesis of capillary vessels to and/or from the embryoid body or organoid; and vascularizing the embryoid body or organoid, the capillary vessels connecting the first vascular network to the second vascular network, thereby creating a single vascular network and a perfusable tissue structure.
By choosing Corning® Gentest™ tissue fractions, you will be able to conduct preclinical metabolism studies to predict the toxicity and pharmacokinetic properties of a drug compound, including metabolic stability, drug-drug interactions, reaction phenotyping, and metabolite identification. Our broad selection of liver and intestinal tissue fractions are highly characterized for important metabolizing enzymes such as CYPs, UGTs, and other enzymes. The fractions are offered as pooled or as single donors.. The pooled donors represent an average profile of catalytic activities from many individuals and are most suited for controlling the inter-individual variability in quantitative studies of metabolism. The Corning UltraPool™ HLM 150 is the first commercially available large donor pool. This product better represents the average patient population and known CYP polymorphisms, enabling consistent experimental results in multi-year programs, and offering a time savings by reducing the time ...
Over the entire MBF range (0.66-4.7 ml/min/g), concordance was excellent for MBF (r = 0.90, [(82)Rb-(15)O-water] mean difference ± SD = 0.04 ± 0.66 ml/min/g, LoA = -1.26 to 1.33 ml/min/g, ρ(c) = 0.88) and MFR (range 1.79-5.81, r = 0.83, mean difference = 0.14 ± 0.58, LoA = -0.99 to 1.28, ρ(c) = 0.82). Hyperaemic MBF was reduced in CAD patients compared with the subset of 11 control subjects (2.53 ± 0.74 vs. 3.62 ± 0.68 ml/min/g, p = 0.002, for (15)O-water; 2.53 ± 1.01 vs. 3.82 ± 1.21 ml/min/g, p = 0.013, for (82)Rb) and this was paralleled by a lower MFR (2.65 ± 0.62 vs. 3.79 ± 0.98, p = 0.004, for (15)O-water; 2.85 ± 0.91 vs. 3.88 ± 0.91, p = 0.012, for (82)Rb). Myocardial perfusion was homogeneous in 1,114 of 1,122 segments (99.3%) and there were no differences in MBF among the coronary artery territories (p , 0.31 ...
Page: 1/15 AVSNITT 1: IDENTIFIKASJON AV STOFFET/STOFFBLANDINGEN OG AV SELSKAPET/FORETAKET 1.1 Produktidentifikator REF MUSTER Produktnavn NucleoBond BA Sample (5) 1 x 125 ml G3 1 x 60 ml G4 1 x
Hypoxia increases cerebral blood flow (CBF), but it is unknown whether this increase is uniform across all brain regions. We used H215O positron emission tomography imaging to measure absolute blood flow in 50 regions of interest across the human brain (n = 5) during normoxia and moderate hypoxia. PCO2 was kept constant (44 Torr) throughout the study to avoid decreases in CBF associated with the hypocapnia that normally occurs with hypoxia. Breathing was controlled by mechanical ventilation. During hypoxia (inspired PO2 = 70 Torr), mean end-tidal PO2 fell to 45 ᠶ.3 Torr (means ᠓D). Mean global CBF increased from normoxic levels of 0.39 ᠰ.13 to 0.45 ᠰ.13 ml/g during hypoxia. Increases in regional CBF were not uniform and ranged from 9.9 ᠸ.6% in the occipital lobe to 28.9 ᠱ0.3% in the nucleus accumbens. Regions of interest that were better perfused during normoxia generally showed a greater regional CBF response. Phylogenetically older regions of the brain tended to show larger ...
A Val66Met single-nucleotide polymorphism (SNP) in the brain-derived neurotrophic factor (BDNF) gene impairs activity-dependent BDNF release in cultured hippocampal neurons and predicts impaired memory and exaggerated basal hippocampal activity in healthy humans. Several clinical genetic association studies along with multi-modal evidence for hippocampal dysfunction in schizophrenia indirectly suggest a relationship between schizophrenia and genetically determined BDNF function in the hippocampus. To directly test this hypothesized relationship, we studied 47 medication-free patients with schizophrenia or schizoaffective disorder and 74 healthy comparison individuals with genotyping for the Val66Met SNP and [15O]H2O positron emission tomography (PET) to measure resting and working memory-related hippocampal regional cerebral blood flow (rCBF). In patients, harboring a Met allele was associated with significantly less hippocampal rCBF. This finding was opposite to the genotype effect seen in healthy
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Introduction: Quantitative myocardial blood flow (MBF) obtained via Rb82 PET/CT using regadenoson provides the ability to assess ischemia through analysis of stress MBF and coronary flow reserve (CFR), the augmentation of flow expressed as a stress/rest ratio. It is unknown to what extent, if any, age-related changes in arteries (i.e. arterial stiffening, atherosclerosis) impact MBF and, thus, the interpretation of ischemia.. Hypothesis: MBF values change as a function of age and impact PET interpretation.. Methods: Patients who underwent PET/CT from May 2013 to April 2015 with normal perfusion images and no history of PCI or CABG were included (n=3329, 1720 women, 1498 men). Rest MBF, stress MBF, and CFR) (mL/min/g) were recorded in all vessels separated by gender and by age ,60 or ≥60. Analysis was conducted on individual vessels and global estimates were calculated averaging all vessels. Estimated average median differences between age ,60 and ≥60 were adjusted for traditional ...
Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus. It has a mass of 15.99491461956 u. Oxygen-16 is the most abundant isotope of oxygen and accounts for 99.762% of oxygens natural abundance. The relative and absolute abundance of 16O are high because it is a principal product of stellar evolution and because it is a primordial isotope, meaning it can be made by stars that were initially made exclusively of hydrogen. Most 16O is synthesized at the end of the helium fusion process in stars; the triple-alpha process creates 12C, which captures an additional 4He to make 16O. The neon-burning process creates additional 16O. ...
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We used H(2)15O positron emission tomography (PET) to measure age-related changes in regional cerebral blood flow (rCBF) during a verbal recognition memory task. Twelve young adults (20 to 29 years) and 12 older adults (62 to 79 years) participated. Separate PET scans were conducted during Encoding, Baseline, and Retrieval conditions. Each of the conditions involved viewing a series of 64 words and making a two-choice response manually. The complete reaction time (RT) distributions in each task condition were characterized in terms of an ex-Gaussian model (convolution of exponential and Gaussian functions). Parameter estimates were obtained for the mean of the exponential component (tau), representing a task-specific decision process and the mean of the Gaussian component (mu) representing residual sensory coding and response processes. Independently of age group, both tau and mu were higher in the Encoding and Retrieval conditions than in the Baseline condition, and tau was higher during ...
In an interesting study published in a recent issue of Heart, Rosen and colleagues26 provide new insights into the neural mechanisms responsible for enhanced cardiac pain perception in syndrome X. They performed dynamic H215O positron emission tomography to map regional cerebral blood flow (rCBF) in eight syndrome X patients (six females) and in eight sex and age matched healthy controls. rCBF was evaluated at rest and during echocardiographic dobutamine stress test; the results were also compared with those obtained in a group of historical patients with stable angina and coronary artery disease (CAD) (n = 9, two females). No control subject developed chest pain or ECG changes during dobutamine infusion. In contrast, all syndrome X patients developed typical anginal pain and ST segment depression, in the absence of detectable left ventricular wall motion abnormalities. rCBF distribution showed significant differences between syndrome X patients and controls, mainly consisting of an increased ...
TY - JOUR. T1 - Pioglitazone improves left ventricular diastolic function in subjects with diabetes. AU - Clarke, Geoffrey D. AU - Solis-Herrera, Carolina. AU - Molina-Wilkins, Marjorie. AU - Martinez, Sandra. AU - Merovci, Aurora. AU - Cersosimo, Eugenio. AU - Chilton, Robert J. AU - Iozzo, Patricia. AU - Gastaldelli, Amalia. AU - Abdul-ghani, Muhammad A. AU - Defronzo, Ralph A. PY - 2017/11/1. Y1 - 2017/11/1. N2 - OBJECTIVE To examine the effect of pioglitazone on myocardial insulin sensitivity and left ventricular (LV) function in patients with type 2 diabetes (T2D). RESEARCH DESIGN AND METHODS Twelve subjectswith T2Dand 12with normal glucose tolerance received a euglycemic insulin clamp. Myocardial glucose uptake (MGU) and myocardial perfusion were measured with [18F]fluoro-2-deoxy-D-glucose and [15O]H2O positron emission tomography before and after 24 weeks of pioglitazone treatment.Myocardial function and transmitral early diastolic relation/atrial contraction (E/A) flow ratio were ...
BACKGROUND: Positron emission tomography scanners with retractable septa allow both 3-dimensional (3D) and 2-dimensional (2D) acquisition modes. The study aim was to directly compare 2D and 3D acquisition modes for the evaluation of absolute myocardial blood flow (MBF) over a wide range of flow values. METHODS AND RESULTS: Instrumentation was used in 4 dogs to reduce the left circumflex artery lumen by greater than 75%. During infusion of adenosine, MBF was measured with both 2D and 3D dynamic acquisition and both oxygen 15 water and nitrogen 13 ammonia. Injected activities were 333 MBq and 111 MBq for 2D acquisition and 3D acquisition, respectively. Data were reconstructed by analytic methods, and MBF was assessed by use of an 18-segment model. MBF values ranged from 0.4 to 5.8 mL x g(-1) x min(-1) with O-15 water and from 0.3 to 3.9 mL x g(-1) x min(-1) with N-13 ammonia. No significant differences were observed in absolute MBF values obtained with the 2 acquisition modes, regardless of the ...
Introduction: No screening procedures exist for evaluating stroke risk in adults with sickle cell anemia (SCA). Reduced oxygen carrying capacity is present in SCA, which may initially be compensated for by an increase in cerebral blood flow (CBF) and then by increased oxygen extraction fraction (OEF).. Hypothesis: OEF and CBF can be measured noninvasively and reproducibly with MRI using clinically-available equipment in adults with SCA; elevated OEF provides added discriminatory capacity for clinical impairment relative to vasculopathy extent and CBF alone.. Methods: Structural, CBF-weighted, and MRA imaging, together with a noninvasive OEF-weighted T2-relaxation-under-spin-tagging (TRUST)-MRI method was applied in SCA adults (n=26) and race and age-matched controls (n=11). A Kruskal-Wallis test was applied to evaluate mean differences between SCA and control parameters. Linear regression assessed how elevated OEF correlated with increasing clinical impairment defined by presence of infarct, ...
Endothelial Foxp1 Regulates Pathological Cardiac Remodeling through TGF-β1-Endothelin-1 Signal Pathway The effects of TGF-β1 blockade on endothelial cell (EC)-forkhead box transcription factor P1 (Foxp1)-deletion mediated pro-fibrotic and pro-hypertrophic phenotypic changes were confirmed by pharmacological inhibition, and more specifically by RGD-peptide magnetic nanoparticle target delivery of TGF-β1-siRNA to ECs. [Circulation] Abstract Microphysiological Engineering of Self-Assembled and Perfusable Microvascular Beds for the Production of Vascularized Three-Dimensional Human Microtissues A system was created in a micropatterned hydrogel construct housed in an elastomeric microdevice that enabled co-culture of primary human vascular endothelial cells and fibroblasts to achieve de novo formation, anastomosis, and controlled perfusion of 3D vascular networks. [ACS Nano] Abstract Hypoxia-Enhanced Blood-Brain Barrier Chip Recapitulates Human Barrier Function and Shuttling of Drugs and ...
Rationale: Regional lung function depends on the amount of capillary blood that interfaces with alveolar air, and both parameters dynamically change during the respiratory cycle. Although the spatial distribution of regional blood (Vb) and gas (Vg) within the lung has previously been assessed by different techniques, the dynamic changes of these parameters during the respiratory cycle have not been directly quantified.. Methods: We used K-edge subtraction synchrotron CT imaging and a post-gating reconstruction sequence to quantitatively image regional Vg, tissue density and Vb in 6 anaesthetized healthy and mechanically ventilated rabbits. Images were repeatedly collected during ventilation and steady-state inhalation of 70% Xe, or iodine infusion. Data were acquired in 2 different axial chest positions, PEEP, VT and breathing patterns. Regional Vg and Vb were calculated from xenon and iodine distributions, respectively.. Results: A video of the dynamic changes in gas and blood volume during the ...
I havent stocked the tank with any fish at the moment, but I have noticed some tiny little snails. They must have been attached to the plants and Im fine with them being there for now. What I am a little concerned about is whether these snails can survive out of the water? Im currently watching one moving closer and closer to the top of the tank, where there is a small gap to allow air pipes, etc. through. Is it likely that these snails will venture out of the water, and into my room, and survive to tell the tale?. Can snails found in fish tanks, survive out of water?. Update: snail is breaching the water.. ...
We have described the biotransformation of the novel biaryl ether compound, VU0409106, in hepatic S9 and hepatocytes of multiple species. The discovery that rat, monkey, and human metabolized VU0409106 in an NADPH-independent manner through a primary pathway in vitro in hepatic S9 indicated a likely contribution of a molybdenum hydroxylase in the metabolism of this novel mGlu5 NAM. Indeed, the collective use of cofactor manipulation (S9 incubations) and selective inhibitors implicated AO and XO in the biotransformation of VU0409106 to the oxidized metabolite M1 in rat and human (Scheme 1). Furthermore, the absence of M1 formation in dog hepatic S9 fractions implicated the involvement of AOX1, a protein absent in dogs (Garattini and Terao, 2012). Of importance, the use of 18O-labeled water in S9 experiments provided additional evidence for the role of AO and/or XO in the biotransformation of VU0409106 because MS/MS data indicated the incorporation of an 18O atom on the pyrimidine moiety of M1 as ...
The rCBF(Alpert) model is used for calculating parametric perfusion maps from dynamic H215O brain PET images. A 1-tissue compartment model is applied
Pranayama means Control of Breath. In this Puraka Pranayama, a long continuous inhalation is practised. This pranayama holds multiple benefits ...read more
são criadas e produzidas no Brasil e, posteriormente, traduzidas, com pequenas adaptações, para o espanhol. Assim, não há necessidade de grandes investimentos na construção de sua rede de vendas e da marca ...
Quando se suspeita de hipotireoidismo, pode ser confirmado com exames de sangue que dosa o hormônio estimulante da tireóide (TSH) e a tiroxina. Entretanto, o h…
Biomimetic models of microvasculature could enable assays of complex cellular behavior at the capillary-level, and enable efficient nutrient perfusion for the maintenance of tissues. However, existing three-dimensional printing methods for generating perfusable microvasculature with have insufficient resolution to recapitulate the microscale geometry of capillaries. Here, we present a collection of multiphoton microfabrication methods that enable the production of precise, three-dimensional, branched microvascular networks in collagen. When endothelial cells are added to the channels, they form perfusable lumens with diameters as small as 10 μm. Using a similar photochemistry, we also demonstrate the micropatterning of proteins embedded in microfabricated collagen scaffolds, producing hybrid scaffolds with both defined microarchitecture with integrated gradients of chemical cues. We provide examples for how these hybrid microfabricated scaffolds could be used in angiogenesis and cell homing ...
Since 1984, the Latina/o Studies Program (LS) has been a primary site on the University of Michigan campus for the scholarly study of Latina/o culture, history and social dynamics. The program sponsors important cultural and academic events on campus, and has a developing agenda for community/university partnerships and internships. Our core curriculum offers an interdisciplinary and pan-Latina/o approach to the study of Latina/o history, politics, culture, social relations, and artistic expression within the U.S. and in transnational perspective. Our faculty consist of jointly appointed core and many affiliated faculty in various departments and Schools (such as Natural Resources and Environment, Nursing, Public Health, and Social Work) who provide richly varied undergraduate and graduate curricula and mentoring in humanities, social scientific, health, and scientific fields as well as community service learning. Our institutional connections to the Department of American Culture enable our ...
GIVENS, WYATT WENDELL. "GAMMA RADIATIONS FROM EXCITED STATES OF NITROGEN-16, OXYGEN-19, AND NEON-19." (1963) Diss., Rice University. https://hdl.handle.net/1911/14127 ...
Just got my new 220g circulating and testing for leaks in the plumbing. I filled it up with regular city water. I heard that I should be useing R/O water as much as possible. Is it totally necessary
My personal opinion is that Dihydrogen Monoxide (DHMO) is not nearly as dangerous as some people make it out to be… I personally have been exposed to vast quantities of it and have only rarely suffered adverse effects. Although I do know friends and relatives that have died from excessive exposure to the stuff. And I certainly agree that putting the stuff in milk, gasoline or whiskey is to be avoided. But… Then again… My opinion is from a person who has also been exposed to vast quantities of radiation … So… in all fairness… Here is a link to an organization that makes a good argument about how much of this stuff people are exposed to and its role in the real, theoretical, theological and potential destruction of mankind… They even point to passages in the Bible that indicate a mass extinction took place due to exposure to what could have only been mass quantities of DHMO… In fact… It is a scientifically proven fact that continuous inhalation of this substance is indeed fatal. ...
DescriptionThe Snow Performance Stage 3 Boost Cooler brings true two dimensional mapped water-methanol injection delivery to your EFI (electronic fuel injected) and forced induction (turbocharged/supercharged) vehicle. The Stage 3 creates.....
Rockland Technimed, Ltd. is a Theranostics company, committed to the early diagnosis and treatment of hypoxic injury. Rocklands disruptive Nano-technology OxyFusion™ MRI medium enriched with its patented Oxy-17® process may set the new Gold standard of. Oxyfusion™ is a stable Nano-emulsion of the FDA approved PFD, that can efficiently deliver ultra pure Oxygen-17 to target tissue at cellular level. Use of Oxyfusion™ will revolutionize the world of MRI metabolic imaging. ...
Chapter Students will be able to define an acid and base in terms of both the Arrhenius and the Bronsted-Lowry definitions and provide examples of each (including examples that follow the Bronsted-Lowry
I have suffered with bad cold soars for a years. I usualy use a cold soar cream called Aciclovir that my doctor gives me. Ive had a terrible break out...
Background: Increases in oxygen extraction fraction (OEF) are postulated to be a marker of tissue at risk of infarction in acute ischemic stroke patients. R2, a parameter that can be measured rapidly using an asymmetric spin echo MRI sequence (ASE), can be considered an OEF-weighted MRI metric, being a combination of both OEF and venous cerebral blood volume. We investigated the feasibility and utility of OEF-weighted MRI in acute stroke.. Methods: Adult ischemic stroke patients were prospectively enrolled in a 3T MRI study of patients imaged within 48 hours of stroke onset. Only the subset of patients whose MRI included ASE and whose DWI was positive for acute infarction was analyzed. Acquisition time for ASE was 1.5 min. R2 maps was calculated from ASE data on a voxel-wise basis after motion correction and smoothing. DWI and follow-up images (FU), when available, were co-registered to the ASE. Mean R2 values and coefficient of variance (mean/SD) within the lesion, ipsilateral DWI-normal ...
The tissue fraction of red blood cells (RBCs) and their oxygenation and speed-resolved perfusion areestimated in absolute units by combining diffuse reflectance spectroscopy (DRS) and laser Doppler flowmetry(LDF). The DRS spectra (450 to 850 nm) are assessed at two source-detector separations (0.4 and 1.2 mm), allowingfor a relative calibration routine, whereas LDF spectra are assessed at 1.2mmin the same fiber-optic probe. Data areanalyzed using nonlinear optimization in an inverse Monte Carlo technique by applying an adaptive multilayeredtissue model based on geometrical, scattering, and absorbing properties, as well as RBC flow-speed information.Simulations of 250 tissue-like models including up to 2000 individual blood vessels were used to evaluatethe method. The absolute root mean square (RMS) deviation between estimated and true oxygenation was 4.1percentage units, whereas the relative RMS deviations for the RBC tissue fraction and perfusion were 19% and23%, respectively. Examples of in ...
Although the responses of inner retinal OEF to light flicker were similar under normoxia and hypoxia, we speculated that the corresponding increases in MO2 may have been different. Under hypoxia, compensation by DO2 was likely lower due to maximized vasodilation; hence, a given increase in OEF would result from a smaller change in MO2. The light flicker-induced increase in MO2 can be estimated based on Ficks principle (MO2 = OEF*O2A*blood flow). 11 Under normoxia, the measured increase in OEF (from 0.46 to 0.50) and unchanged O2A (unchanged PO2A), along with a previously reported increase in blood flow (from 9.9 to 13.5 μL/min), 28 yielded an estimated light flicker-induced MO2 increase of 48%. This value is in agreement with an estimated 37% increase in MO2 based on PO2 and blood flow measurements at the optic nerve head in cats. 24 Under hypoxia, based on the measured increase in OEF (from 0.67 to 0.74), unchanged O2A (unchanged PO2A), and a presumed negligible change in blood flow, the ...
2011. López-Ruiz Heraclio,* Cortés-Hernández Mayra, Rojas- Lima Susana, Höpfl Herbert. Synthesis of nitrogen-, oxygen- and sulphur-containing tripodal ligands with a trimethylbenzene core. Journal of the Mexican Chemical Society, 55(3), 168-175. (2011). ...
Positron Emission Tomography (PET) is a technique used in the medical field to detect cancer tumors in the body. The PET camera measures beta-radiations emitted by a radioactive probe molecule. One of the most used radioactive molecules is Fluorine-18 fluorodeoxyglucose (18F-FDG), which is produced
View Notes - I Can Make Alcohols from CH 223 at N.C. State. a. Br O HO b. NaNH 2 O H c. Cl Mg O O d. KMnO 4 /OH e. KMnO 4 /H Li excess f. 1. O 3 Li 2. Zn/H 2 O g. NaNH 2 Br H 2 O/H h. Show the
The complex between 17O-enriched DOTA (tetraazacyclododecanetetraacetic acid) and praseodymium(iii) (Pr3+) was studied in aqueous solution by variable-temperature 17O NMR at 14.1 T. pH effects as well as the influence of metal ions free in solution were investigated. At low temperature, the so-called TSAP an
VD: how great was this word? Who knows? All we know is, its fucking great now. At once evoking nostalgia for a simpler time when VD was unlikely to kill you, yet conveying a simple post-World-War-II moralism, we definitely vote WATER. Young hipsters who at once can appreciate both (a) the need for colloquialisms and jargon and (b) the need to avoid vogue words will want to race out and buy themselves some VD. "Sexually Transmitted Diseases" has too many words, and "STD" sounds too much like "STP" [for the geezers reading this, an automotive product; for the slightly-younger geezers reading this, a band], so VD is definitely the choice. Water it well; it can also invoke odd thoughts of Valentines Day, and spurs myriad conversations about what the Goddess of Love was doing with the Clap in the first place ...
Sounds good for the plumbing, but I had to look up Upflow Clarification Process and what I found, linked above, is nothing I want to figure out... Doesnt seem to be a laymans terms explanation... Anyone want to try to figure this out and explain this process please? And again with the disinfection... Does this mean our water is infected and if so by what? PH, what besides, helping our plumbing, does PH do to us, to living things? Read this and you tell me, sure looks like it could contribute... This also opens a hole new can of beans... PH seems to be very important... The fact the city controls the PH is rather worrisome ...
Publishing platform for digital magazines, interactive publications and online catalogs. Convert documents to beautiful publications and share them worldwide. Title: Water of Life, Author: Comarex, Length: 2 pages, Published: 2010-03-03
View Notes - FAQ-Chap02 from CHEM 322AL at USC. OH OR OR OH C O H N OH O NH 2 Lets not use these heteroatoms directly connected to each other. No oxygen or nitrogen directly connected to alkenes or
I just noticed that oxygen-icons-4.5.5.tar.bz2 is 276MB in size. I know this isnt FreeBSDs doing, but... holy crap! Does it include a full icon set for every app that has ever been written? Its twice the size of oxygen- icons-4.5.2. Its the single largest distfile in KDE. ,/rant, -- David Johnson ...
Wasnt sure if I should post here or in technical - Does anyone have experience with SpectraPure RO/DI water systems? Their CSPDI 90 gph manual flush system has been recommended to me. I am currently buying my R/O water - it would be great to have my own source. I spoke to a technician at SpectraPure yesterday and gave him my tap water parameters. He said that because of the 1.0 ppm ammonia I would need the RO/DI instead of just an RO system. He said the 90 gph unit would serve me
Wasnt sure if I should post here or in technical - Does anyone have experience with SpectraPure RO/DI water systems? Their CSPDI 90 gph manual flush system has been recommended to me. I am currently buying my R/O water - it would be great to have my own source. I spoke to a technician at SpectraPure yesterday and gave him my tap water parameters. He said that because of the 1.0 ppm ammonia I would need the RO/DI instead of just an RO system. He said the 90 gph unit would serve me
Event 34, 50 Meter Breaststroke Heat 1 Results ============================================================================ Lane Name Sex/Age Club Seed Time Final Time ============================================================================ 1 Taraska, Veronica F33 O*H* 36.80 43.00 2 Groselle, Jack R M57 SYSM 34.00 35.30 3 Groselle, John R M32 O*H* 29.70 34.22 4 Warner, Adam S M24 SAMY 32.37 33.51 5 Kazmaier, Karl H M56 SAMY 36.00 36.00 6 Douglass, Nick M62 SAMY 39.11 40.73 ...