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Topic: Mean width


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In the News (Wed 15 Feb 12)

  
  Effects of Roadside Transect Width   (Site not responding. Last check: 2007-10-21)
Except for temporary basins, mean bias was at least twice as high for 400-m transects as for 800-m transects, suggesting that basin density was greater on the transect width closest to roads.
Mean bias for all wetlands was +0.8% of plot density for all regimes in 800-m transects and +2.8% for 400-m transects.
Mean basin density was greater for the inner transect width than for the outer transect width for all basins combined and for seasonal and temporary basins (Table 3).
www.npwrc.usgs.gov /resource/birds/rstwidth/results.htm   (1102 words)

  
 Confidence Intervals
The sample mean is a point estimate of the population mean, i.e, it is a single value which we use to represent the population mean.
However, the sample mean varies in repeated samples from the population and thus we need to assess (probabilistically) how close the sample mean is to the population mean.
The confidence intervals enclosing the true population mean (denoted as a red vertical line) are drawn in blue, whereas the intervals not containing the population mean are drawn in yellow.
www.stat.wvu.edu /SRS/Modules/CI/ci.html   (264 words)

  
 Encyclopedia :: encyclopedia : 1 E-10 m   (Site not responding. Last check: 2007-10-21)
780 pm — mean width of quartz cell
820 pm — mean width of ice cell
900 pm — mean width of cœsite cell
www.hallencyclopedia.com /1_E-10_m   (156 words)

  
 EPA-MAIA - State of the Streams: 1995-1997 Maryland Biological Stream Survey Results   (Site not responding. Last check: 2007-10-21)
Mean thalweg depth (the depth at the deepest part of the channel, measured at four cross-sections per sampled segment) ranged from 16.8 cm in first-order streams to 41.8 cm in third-order.
Mean stream width, statewide and for the basins sampled in the 1995-1997 MBSS (lack of error bars indicate that variance is statistically undefined).
Mean discharge, statewide and for the basins sampled in the 1995-1997 MBSS (lack of error bars indicate that variance is statistically undefined).
www.epa.gov /maia/html/mbss-ch7b.html   (3223 words)

  
 Colorado Plateau Field Institute - Geological Research
The aggradational parasequences have similar lengths as the wave-modified parasequences, with a mean length/thickness of 606.
River-dominated parasequences have mean proximal delta front length/thickness of 425 (width/thickness=472; length/ width=1.8) and reworked proximal delta front and middle shoreface deposits have a mean length/thickness of 827 and 912, respectively.
River-dominated parasequences have mean distal delta front length/thickness ratios of 518 and reworked distal delta front, and lower shoreface deposits have mean length/thickness ratios of 819 and 2469, respectively.
www.cpfieldinstitute.org /abstract1.php?cpfi_id=4&cat=g&tbl=publications   (706 words)

  
 Chapter 11 (page 44)
The width and height of the pyloric ring, and the diameters of the pyloric aperture, sphincteric cylinder and duodenal bulb, were measured on radiographs of 10 adult subjects, taken at a time when no visible motor activity was evident, i.e.
The mean width of the ring was 4.7mm and the mean height 11.1mm; the depth was approximately the same on the greater and lesser curvature sides.
The mean diameter of the sphincteric cylinder was 57.1mm, and the mean diameter of the duodenal bulb 35.8mm.
med.plig.org /11/44.html   (440 words)

  
 OFR 94-2 Cascadia beach-shoreline database
The beach width is taken from the measured shore-normal (across-shore) distance of the active beach deposit from the mid-swash zone to the base of a sea cliff or to an established vegetation line.
Beach width measurements taken from the 1974-81 flight dates are given to the nearest 10 meter interval for comparison of beaches flown within the same flight period.
The profile width is measured from the landward termination of the backshore to the intersection of the foreshore with the estimated elevation of mean tide level (MTL).
nwdata.geol.pdx.edu /DOGAMI/OF-94-02/OF-94-02.html   (8868 words)

  
 Membrane Potential and Firing Rate in Cat Primary Visual Cortex -- Carandini and Ferster 20 (1): 470 -- Journal of ...
Their width and the length of the error bars on the data points are twice the SE of the measurements.
The measure of tuning width in the abscissa is the half-width at half-height.
The direction index obtained from the sum of the mean and modulated components of the responses (ordinate) is plotted against the direction index obtained from the modulated components of the responses (abscissa).
www.jneurosci.org /cgi/content/full/20/1/470   (9139 words)

  
 Bioline International Official Site (site up-dated regularly)
The mean age of the patient group was 66.7± 8.5 and of the control group was 57.19± 9.46 PD patients had a mean disease duration of 6.25±3.31 years.
The width of the SNpc was calculated by measuring the hyperintense band between the pars reticulata and nucleus ruber, as previously suggested by Duguid et al and Braffman et al.
The mean intensity scores of the globus pallidus, nucleus ruber, putamen, pars reticulata and the caudate nucleus did not correlate with the clinical scores of PD patients.
www.bioline.org.br /request?ni04110   (4537 words)

  
 JIS: Tschinkel 2.12.2002   (Site not responding. Last check: 2007-10-21)
Mean ecdysteroid titers of filter chamber/gut complexes of silverleaf whiteflies reared on greenbean (GB), cotton, collard and sweet potato (SP) plants...
Mean lengths of silverleaf whiteflies reared on green bean, tomato, poinsettia, cotton, collard and sweet potato were 0.68, 0.63, 0.67, 0.77, 0.75 and 0.74, respectively.
It is probable that the mean ecdysteroid titers of nymphs with depths <0.08 mm reared on the glabrous-leafed plants would be equivalent to the mean ecdysteroid titers of Stage-1 nymphs reared on green bean and tomato.
digital.library.arizona.edu /insect/3.25   (4323 words)

  
 Moreau River Fishes
Mean daily discharge is 3.9 m³/s (range = 0.0 to 705 m³/s), but discharge fluctuates seasonally from a monthly mean of 0.2 m³/sec in winter to about 11.0 m³ /sec during spring runoff (Fig.
Mean monthly hydrographs for the Moreau River near Faith, South Dakota for 1943 to present (dashed line labeled historical), for 1995 (dotted line), and for 1996 (solid line) (USGS 1996, 1997).
Moreau River fish sampling station numbers and station length, mean width, mean depth, mean bankfull width, dissolved oxygen, conductivity, total dissolved solids, gradient, and discharge in 1995 and 1996.
www.npwrc.usgs.gov /resource/fish/umrbfish/study.htm   (421 words)

  
 Scaling Relation With the Capillary Number
The corresponding mean front width is plotted in figure 4.9 (3).
The error bars correspond to the standard error in the mean of the saturation widths.
From figure 4.12 the width of the front is found to decrease with increasing capillary number.
www.fys.uio.no /~eaker/Master_thesis/node52.html   (525 words)

  
 How wide   (Site not responding. Last check: 2007-10-21)
If the mean width of the lecture hall was calculated to be 12.672 meters and the sd was calculated to be +/- 0.048 meters then...
...the mean should have 3 significant figures according to the precision of the data.
the width of the lecture hall according to the precision of the measurements is
chemlearn.chem.indiana.edu /demos/HOWWIDE.HTM   (234 words)

  
 [No title]
Where a street borders a public place, public park or navigable body of water the width of the street is the mean width of such street plus the width, measured at right angles to the street line, of such public place, public park or body of water.
If such greatest width occurs on more than one street the curb level is the mean level of the curb on that street of greatest width which has the highest curb elevation.
of the width of the lot on the street line that such street wall is less in length than such width of the lot, such wall may be erected four inches nearer to the street line.
biotech.law.lsu.edu /cphl/history/laws/1916nycode_clean.doc   (4750 words)

  
 Source Scaling Properties from Finite-Fault Rupture Models   (Site not responding. Last check: 2007-10-21)
This observation is inconsistent with pure width or length scaling for simple constant stress-drop models, but suggests that the finite seismogenic width of the fault zone exerts a strong influence on the displacement for very large strike slip earthquakes.
For a rupture width of about 10 km this estimate would translate into a 380 km long earthquake with mean slip on the order of 6 m, roughly in agreement with the source parameters for the 1906 San Francisco event.
The increase of mean slip with increasing rupture length, in excess of the slip increase predicted by the W-model, may be consistent with a W-model for which the mechanics of the rupture are strongly influenced by the fault width, but slip saturates only for extremely large strike-slip earthquakes.
pangea.stanford.edu /~mmai/research/srcscl/BSSApaper.html   (5871 words)

  
 Confidence Intervals for Small Samples
You observe 8 widgets which have a mean width of 2.013in.
From past experience, you know widget widths are normally distributed and that, even if the machine gets slightly out of alignment, the population standard deviation of widget widths is 0.005in.
Compute a 99% confidence interval for the mean difference between the two methods assuming construction times under both methods are normal and that the population standard deviations are equal.
www.ms.uky.edu /~viele/sta281s99/confintsmall/confintsmall.html   (1067 words)

  
 Measurement of the subarachnoid space by ultrasound in preterm infants -- Armstrong et al. 86 (2): 124 -- Archives of ...
= 0.002) or the equivalent of a mean increase of 0.20 mm/week
The width of the subarachnoid space was measured on coronal
The subarachnoid space is measured in perpendicular fashion, with electronic calipers, from the edge of the triangular sagittal sinus to the surface of the cortex.
fn.bmjjournals.com /cgi/content/full/86/2/F124   (1912 words)

  
 Adenoidal width and HIV factors.
METHODS: The sagittal T1-weighted MR images of 21 HIV-positive patients (age range, 25 to 50 years; mean, 37 years) and 21 healthy control subjects (age range, 24 to 55 years; mean, 35 years) were reviewed blindly and independently by two radiologists who measured the maximal dimension of the nasopharyngeal lymphoid tissue.
Twenty-six additional HIV-positive patients were combined with the original 21 HIV-positive patients, and the hematologic studies of these 47 patients were compared with the adenoidal measurements to assess whether a relationship existed between nasopharyngeal prominence and hematocrit, white blood cell count, and CD4 count.
RESULTS: Mean adenoidal width was 6.76 mm (SD, 5.82) in the HIV-positive population, but was only 3.36 mm (SD, 2.48) in the age-matched control group.
www.aegis.com /aidsline/1998/mar/M9830909.html   (408 words)

  
 CT of Primary Hyperaldosteronism (Conn's Syndrome): The Value of Measuring the Adrenal Gland -- Lingam et al. 181 (3): ...
adrenal limb widths and the radiologist's diagnosis for bilateral
of the mean widths of the adrenal limbs in aldosterone-producing adenoma
However, mean limb width of both glands is 4.3 mm and algorithm suggests adrenal venous sampling.
www.ajronline.org /cgi/content/full/181/3/843   (3274 words)

  
 Research Design and Analysis, Emporia State Univ.
The following is a set of data taken of the width in centimeters of human hands across the distal end of the palm at the joint between the metacarpals and the phalanges with the fingers appressed together.
: mean width of the right hand is equal to the mean width of the left hand.
To test the null hypothesis that the mean of the deviations is equal to zero, we calculate a t-value.
academic.emporia.edu /mooredwi/rda/notes9.htm   (945 words)

  
 Bone Quality Assessment by Quantitative Ultrasound of Proximal Phalanxes of the Hand in Healthy Subjects Aged 3-21 ...   (Site not responding. Last check: 2007-10-21)
Mean AD-SoS values per 1-y class through the distal end of the first phalanx diaphysis of the last four fingers of the hand in healthy male and female subjects ages 3–21 y.
Mean width of fingers increased progressively from 3 to 21 y
Correlation coefficients between AD-SoS and anthropometric variables or mean width of fingers in healthy male and female subjects ages 3–21 y.
www.pedresearch.org /cgi/content/full/49/5/713   (4143 words)

  
 Statistics   (Site not responding. Last check: 2007-10-21)
Calculate the mean (average) width and the standard deviation of the samples.
Moreover, 68% of the data should fall within ± one standard deviation of the mean, 95% of the data should fall within ± two standard deviations of the mean, and 98% of the data should fall within ± three standard deviations of the mean.
Mean - SD = ______ Mean + SD = ______
koning.ecsu.ctstateu.edu /Plant_Physiology/statistics.html   (1138 words)

  
 California - Wikipedia, the free encyclopedia
In the center and east of the state are the Sierra Nevada (meaning Snowy Range in Spanish), which include the highest peak in the contiguous 48 states, Mount Whitney, at 14,505 feet (4421 m).
Also located in the Sierra are the world-famous Yosemite National Park and a deep freshwater lake, Lake Tahoe, the largest lake in the state by volume.
The U.S. Census Bureau considers race and Hispanic origin to be separate categories, meaning that people of Hispanic origin may belong to any racial group.
en.wikipedia.org /wiki/California   (7139 words)

  
 Glazier Blade Cache
Also, the Meadowood material tended to be proportionally broader; the mean width of 3.0cm is about 45% of the length of Meadowwood cache blades.
We see a less tight clustering for width, with a greater proportion falling outside of one standard deviation away from the mean.
Width was a less important variableóthat is, his or her tolerance seems to have been greater for blades that were wider or narrower than the standard.
archnet.asu.edu /archives/lithic/blades/glazier.html   (2116 words)

  
 NR 280
Standard practice is to make the reach at least 6 times the width of the channel (the average distance between riffles and pools in a riffle-pool reach), however we may ignore this rule if reach length would become unwieldy for our an afternoon class.
At each 1/5 width point, pick up the largest rock nearby (within ~6 inches), and measure its intermediate axis length (half way between the longest and the shortest axis).
Produce a table, comparing channel width, stream width, mean depth, mean velocity, discharge, power, sediment size, and reach type at each site (arranging the sites along an upstream-downstream gradient).
www.uvm.edu /~slevine/nr280/nr280lab1.htm   (1021 words)

  
 6.6.1.5. Work This Example Yourself
The summary shows the mean line width is 2.53 and the standard deviation of the line width is 0.69.
The moving mean plot shows a large number of out-of- control points.
The mean control chart shows one point that is on the boundary of being out of control.
www.itl.nist.gov /div898/handbook/pmc/section6/pmc615.htm   (456 words)

  
 Visual Spatial Characterization of Macaque V1 Neurons -- Sceniak et al. 85 (5): 1873 -- Journal of Neurophysiology
· · ·, the mean inhibitory space constant for length summation (1.94°); - - -, the population mean for width summation (2.1°).
The mean (41°) is significantly lower than unity, indicating that there is a bias for greater suppression along the length.
, the mean extent of excitatory summation 1.0°.
jn.physiology.org /cgi/content/full/85/5/1873   (7272 words)

  
 Climate Audit » Polar Urals and Yamal Mean Ring Widths
Again 20th century ring widths are not exceptional, but you can see how Briffa’ s RCS methodology has yielded a hockey stick of Mannian proportions from the ring widths.
When you look at the the Yamal mean ring widths, you wonder whether the Yamal hockey stick is merely an artifact of the age adjustment.
Since this is an average, not just one tree, the only way that result could occur would be if the age distribution of the trees sampled was not even, and the 20th century data relies on the outer rings only of old trees.
www.climateaudit.org /?p=548   (1713 words)

  
 pthf.html
According to the specifications the slot width is normal with a mean of 5.164 mm and a standard deviation of 1.444 mm.
The specifications say that the width of the cartridge is normal with a mean of 5.289 mm and a standard deviation of 1.36 mm.
He decides to test the null hypothesis that the true average cartridge width is what it’s supposed to be against the alternative that it’s too large at the 1% significance level.
www.fiu.edu /~neusj/pthf.html   (962 words)

  
 Dataplot Commands for Lithographic Process Case Study
y1label width x1label cassette line blank all character x all xlimits 0 30 xtic offset 0 1 plot width cassette cassette line solid all character blank all xlimits xtic offset.
y1label width x1label wafer line blank all character x all xlimits 1 3 xtic offset 1 1 major xtic mark number 3 minor xtic mark number 0 plot width wafer wafer line solid all character blank all xlimits xtic offset major xtic mark number minor xtic mark number.
y1label width x1label wafer line box plot character box plot xlimits 1 3 xtic offset 1 1 major xtic mark number 3 minor xtic mark number 0 fences on box plot width wafer line solid all character blank all xlimits xtic offset major xtic mark number minor xtic mark number.
www.itl.nist.gov /div898/handbook/pmc/section6/lithogra/lithogra.htm   (380 words)

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