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About twenty thousand of those cards are 3 × 5 inches and seven thousand 5 × 8 inches.

Posted byu/jackbaty4 hours agoCard sizes .t3_xib133._2FCtq-QzlfuN-SwVMUZMM3 { --postTitle-VisitedLinkColor: #9b9b9b; --postTitleLink-VisitedLinkColor: #9b9b9b; --postBodyLink-VisitedLinkColor: #989898; } I've been on-again/off-again with paper for PKM, but one thing remains consistent each time: I don't enjoy using 4x6 index cards. I much prefer 3x5-inch cards. I realize that it's irrational, but there it is.My question is if I dive into building an antinet, will I regret using 3x5 cards? I already have hundreds of them. I have dividers, holders, and storage boxes for them. I just prefer how they _feel_, as weird as that sounds.I'd like to hear if people are using 3x5 cards successfully or if you've come to regret it.

SUPPLEMENTARY DATA

Supplemental material

Detection of toxR gene

Reaction resuspension

A stock solution of xylose (1 mg mL-1) was prepared in distilled water. A dilution series ranging from 100-1000 μg mL-1 was prepared from the stock solution. To 1 mL of solution, 1mL of DNSA was added and kept in a boiling water bath for 10 min and then 400 μL of sodium potassium tartrate solution was added and kept it for cooling. The absorbance was recorded in a spectrophotometer (Shimadzu, UV-VIS) at 540 nm

Preparation of standard curve of xylose

Radiolabeling of Recombinant Proteins in Infected S/9 Cells

Theexperimentalsetup(Figure8and9)forthedeterminationofO2uptakesimultaneouslyfromairandwaterwassimilartothatusedearlierbyNatarajan(1972),Rani(1994)andVijayalakshmi(1996).Aclosedglassrespirometerof5litrecapacitywasfilledwith3.5litrefreshtapwater.Athermocolfloatwithasemicircularholeatitsperipherywasplacedoverthewater,whichseparatedtheair-waterinterphaseoftherespirometer.Theair-phaseoftherespirometerwasattachedtoafluidmanometer.Asthefishcomestothewatersurfaceandtakesair-gulp,thereisapressurechangeintheair-phasecausinganimbalanceinthemanometricfluid.AgraduatedsyringefilledwithpureO2(takenfrommedicalO2cylinder)isusedtorestoretheimbalanceofthemanometricfluid.TheamountthusneededshowstheaerialO2uptakeofthefish.TheexpiredCO2wasabsorbedbythepelletsofKOHinthepetridishoverthemanometricfluid.Theconcentrationofdissolvedoxygenoftheambientwaterwasestimatedbefore andaftertheexperimenttomeasuretheaquaticO2uptakebythefish.ThedifferenceintheDOandtheamountofwaterindicatestheactualaquaticO2uptake.Winkler’svolumetricmethod(Welch,1948)wasusedtoestimatetoDOofthewatersamples.Darkenedrespiratorychamberswereusedwithdimensionsthatwereclosetothoseofthefishinorderthatthefishshouldremaininmoreorlessthesamepositionbut havesufficientroomtomoveitsopercula.Theflowofwaterthroughtherespirometer wasregulatedandmeasuredbymeansofaflowmeter.APhilipsO2electrode(PI1056)waskeptinawaterjacketmaintainedatthesametemperatureastheclosedcirculation.SamplesoftheinflowandoverflowwatercouldalsobeledovertheO2electrode

Bimodalrespiration

appropriate secondary antibody (conjugated with horse-radish peroxidase) diluted in 5% fat free milk solution (in PBST) and incubated for 45 minutes at room temperature. After incubation the membrane was washed and processed for the detection of protein bands using ECL-plus detection reagent (Amersham Biosciences) followed by detection of signal on X-ray film (Hyperfilm-ECL, Amersham Biosciences)

The proteins were resolved using denaturing SDS-PAGE gel and after completion of the run, the gel was over laid on a nitrocellulose paper cut to the size of gel and kept in the blotting cassette in the presence of blotting buffer. Finally the cassette was put in the mini transblot apparatus (Bio Rad) and blotting was done for 4 hours at a constant voltage of 60 V. Then the membrane was taken out and rinsed in PBS containing 0.1% Tween - 20 (PBST) for 5 minutes by gentle shaking. Later the membrane was immersed in 5% non-fat milk solution in PBST with gentle shaking for 1 hour at 37°C. The membrane was washed off from the traces of the fat free milk with PBST and the membrane was over laid with primary antibody diluted in PBST for 3 hours at 4°C with shaking. After incubation the membrane was washed with PBST and layered with

Immunobloting

Plasma membrane H+-ATPase activitywas measured inthe total membrane fraction as described previously (Nakamura et al., 2001).5μg totalmembrane fraction was incubated at 30 ̊C in 120 μl reaction buffer containing 10 mM MgSO4and 50 mM KCl in 50 mM MES (pH 5.7) with 5mM adenosine tri-phosphate (ATP). To eliminate possible contribution of residual ATPases, viz.,vacuolar ATPases, mitochondrial ATPases or non-specific phosphatases, 50mM KNO3, 5mM NaN3and 0.2mM ammonium molybdate were used, respectively, in the assay mixture. Reaction was stoppedafter 30 minby adding 130μl stop-developing solution containing 1% (w/v) SDS, 0.6M H2SO4, 1.2%(w/v)ammonium molybdate and 1.6%(w/v) ascorbic acid. Amount of inorganic phosphate (Pi) liberated was measured at A750nmafter 10 minincubation at room temperature. A standard curve prepared with0-50 μmolesof KH2PO4 was used fordetermination of total Piamount.ATPase activity of the plasma membrane was expressed in micromoles of Pireleased per milligram protein per min. ATPase activity was also determined in the presence of plasma membrane H+-ATPase inhibitor diethylstilbestrol (DES,Sigma# D4628),wherein total membrane fraction was incubated with 0.2mM DES for 5 min, prior to the enzymatic measurement

Plasma membrane H+-ATPase activity assay

dithiothreitol and1X protease inhibitor cocktail. Cell suspension was rapidly frozen at -80 ̊C,thawed and lysed with 0.5mm acid-washed glass beadsin a homogenizer (FastPrep®-24,MP Biomedicals)at maximum speed of 60 secfive times. Homogenate wasdiluted with 5mlTris-HCl (0.1M; pH 8.0)solutioncontaining 0.33M sucrose, 5mM EDTAand 2mM dithiothreitoland centrifuged at 1,000g for 3 minat 4 ̊C. Supernatant was collected and centrifuged again at 3,000g for 5 minat 4 ̊C to remove unbrokencells. The resulting supernatant was centrifuged at 19,000g for 45 minat 4 ̊C to obtain total membrane fraction. Total membrane pellet was resuspendedin 100μl membrane suspension buffer and stored at -80 ̊Ctill further use. Total protein concentration in the membrane fraction was estimated using BCAprotein assay kit (Thermo Scientific, US) with bovine serum albumin (BSA) used as astandard

Isolation of total membrane fractions from C. glabratastrains were carried out as described previously (Fernandes et al., 1998). Cells grown to log-phase under different environmental conditionswere harvested, washed and suspended to afinal density of 20 OD600cells in 1 ml solution containing100mM Tris (pH 10.7),5mM EDTA,2mM

Total membrane preparation

To assess the activity of plasma membrane proton pump, CgPma1, in cells grown in differentexternal pH environment,whole cell acidification assaywas carried out.This assay is a measurement of glucose-responsive proton pump activityin live cellsand is based on a decrease inthe pH of a weakly-buffered solutionupon extrusion of H+ions from thecell. The amount of change in the pH of the medium represents a crude measurement of the activity of functional plasma membrane proton pump in live cells. Whole cell acidification assay was conductedwithcellsgrown in YNB pH 5.5 and YNB pH 2.0medium as described previously (Martinez-Munoz and Kane, 2008) with slight modifications.After growth at30 ̊C for 2 h, cells were harvested, washed and resuspended(1.5-3.0 mg wet weight/ml) in 15ml MES/TEA (1mM; pH 5.0) buffer. Cell suspension was kept at 25 ̊C with continuousagitation. Extracellular pH of the buffer solution was recorded at 1 mininterval for 20 minwith the help of a pH meter(BT-600, BoecoGermany). To activate plasma membrane proton pumping, glucose and KCl were added to a final concentration of 40mM after 3 and 8 minincubation, respectively. Plasma membrane proton pump activitywas plotted as a change in the pH of the extracellular solutionversustime

Whole cell acidification assay

Measurement of plasma membrane H+-ATPase activity

temperature. Genomic DNA pellet was dissolvedeitherin 50 μl 0.1X TE or molecular biology grade water containing 0.3 μlAmbion RNAse cocktail and incubated at 37ºC for 30 min.After RNA digestion, 100 μl of 0.1X TE or nuclease-free water was added to the tube and stored at -20ºC. Quality of extracted genomic DNA was checkedon 0.6% agarosegel by electrophoresis

Desired C. glabratastrain wasgrownovernight in YPD liquid medium and yeast cells were harvested by centrifugation at 2,500g in 15 ml polypropylene tube.Yeast cells were washed with PBS, resuspendedin 500μl lysis buffer (Buffer A) andwere transferred toa2ml microcentrifuge tube. Yeast cells were incubated for 15 minon a thermomixer set at 65 ̊C and 750 rpm. After incubation, 0.5 gm glass beads (0.5 mm) and 500 μl PCI solution were added to thetube. Yeast cells were lysedthree times for 45 seconds each on a bead beating apparatus with intermittent cooling on ice to prevent overheating. Cell lysates were centrifugedat 7,500gfor 5 minandupperaqueous phase (300-350 μl) wastransferred carefully to a new 1.5 ml microcentrifuge tube. 1 mlabsolute ethanol was added andmixedwellby inverting the tube3-4 times. To precipitate genomic DNA, suspension was centrifuged at 7,500g for 10min.Precipitated genomic DNA was washedwith 70% ethanolanddried at room

Genomic DNA isolationby glass bead lysis method

DNA loading dye

Stripping Buffer

ForEPS isolation,X. oryzaepv. oryzicolastrains were plated on PS agar plateand incubated at 28°C. Bacterial lawn was dissolved in 15 ml 1X PBS and 100 μl formamide, and centrifuged at 12,000 g for 6-8 min at RT. Before centrifugation, 1 ml cell suspension was diluted, and plated to get the CFUs. For EPS precipitation, 250 ml chilled acetone was added to the supernatant, and kept at 4°C for overnight (Dharmapuri and Sonti, 1999). EPS was pelleted down at 7000 g for 10 min at 4°C, washed with 10 ml acetone, and kept for drying. After drying, it was dissolved in appropriate volume of water, and quantitated by colorimetric method for estimation of pentoses and hexoses by phenol-sulphuric acid method (Dharmapuri and Sonti, 1999)

EPS isolation and estimation

To perform restriction digestion of plasmid DNA and PCR-amplified DNA products, restriction enzymes were procured from NEW ENGLAND Biolabs(NEB). Restriction digestion was set in 50 μl reaction volume with appropriate buffer and 1X BSA. For ligation of DNA fragments obtained after restriction digestion, T4 DNA Ligase enzyme (NEB, M0202M) was used. All ligation reactions were set in 20 μl reaction volume containing 1X ligase buffer, 3-10 units of DNA ligase enzyme and vector to insert molar ratio of 1:3. The ligation mixture waseitherincubated at 16°C for 16h or at room temperature for 2-3 h. Post incubation, ligation reaction was inhibited by heatingtubes at 65°C for 15-20 min.2-5 μl of ligation mixture was used to transform ultra-competent E. coliDH5αcells

Restriction digestion and ligation

To perform restriction digestion of plasmid DNA and PCR-amplified DNA products, restriction enzymes were procured from NEW ENGLAND Biolabs(NEB). Restriction digestion was set in 50 μl reaction volume with appropriate buffer and 1X BSA. For ligation of DNA fragments obtained after restriction digestion, T4 DNA Ligase enzyme (NEB, M0202M) was used. All ligation reactions were set in 20 μl reaction volume containing 1X ligase buffer, 3-10 units of DNA ligase enzyme and vector to insert molar ratio of 1:3. The ligation mixture waseitherincubated at 16°C for 16h or at room temperature for 2-3 h. Post incubation, ligation reaction was inhibited by heatingtubes at 65°C for 15-20 min.2-5 μl of ligation mixture was used to transform ultra-competent E. coliDH5αcells

Restriction digestion and ligation

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WHAT DOES IT MATTER WHO IS SPEAKING/' SOMEONE SAID, "WHAT DOES IT MATTER WHO IS SPEAKING": Beckett, Foucault, Barthes Alastair Hir