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1

The 51-day periodicity in cycle 22  

NASA Technical Reports Server (NTRS)

On the basis of analysis of the occurrence rate of major flares (X-ray class greater than or equal to M3.0), we present evidence that the 51-day periodicity was in operation during the interval from May 4, 1991 to November 15, 1992. This periodicity is noted to be two times 25.5 days, which has been proposed as the fundamental period of the Sun.

Bai, T.

1994-01-01

2

The 154-day and related periodicities of solar activity as subharmonics of a fundamental period  

NASA Technical Reports Server (NTRS)

It is shown here that periodicities of 51, 78, 104, and 129 days in addition to the 154-day period found in 1984, can often be detected in flare and sunspot records. These periods are close to integral multiples of 25.8 days, suggesting that they are subharmonics of a fundamental period.

Bai, T.; Sturrock, P. A.

1991-01-01

3

Long-period tidal variations in the length of day  

NASA Astrophysics Data System (ADS)

A new model of long-period tidal variations in length of day is developed. The model comprises 80 spectral lines with periods between 18.6 years and 4.7 days, and it consistently includes effects of mantle anelasticity and dynamic ocean tides for all lines. The anelastic properties follow Wahr and Bergen; experimental confirmation for their results now exists at the fortnightly period, but there remains uncertainty when extrapolating to the longest periods. The ocean modeling builds on recent work with the fortnightly constituent, which suggests that oceanic tidal angular momentum can be reliably predicted at these periods without data assimilation. This is a critical property when modeling most long-period tides, for which little observational data exist. Dynamic ocean effects are quite pronounced at shortest periods as out-of-phase rotation components become nearly as large as in-phase components. The model is tested against a 20 year time series of space geodetic measurements of length of day. The current international standard model is shown to leave significant residual tidal energy, and the new model is found to mostly eliminate that energy, with especially large variance reduction for constituents Sa, Ssa, Mf, and Mt.

Ray, Richard D.; Erofeeva, Svetlana Y.

2014-02-01

4

Periodicity of ~155 days in solar electron fluence  

E-print Network

In this paper we have investigated the occurrence rate of high energetic(E>10 MeV) solar electron flares measured by IMP-8 spacecraft of NASA for solar cycle 21 (June, 1976 to August, 1986) first time by three different methods to detect periodicities accurately. Power-spectrum analysis confirms a periodicity ~155 days which is in consistent with the result of Chowdhury and Ray (2006), that "Rieger periodicity" was operated throughout the cycle 21 and it is independent on the energy of the electron fluxes.

Partha Chowdhury; P. C. Ray; saibal Ray

2007-06-06

5

On the day-to-day variation of the equatorial electrojet during quiet periods  

NASA Astrophysics Data System (ADS)

It has been known for a long time that the equatorial electrojet varies from day to day even when solar and geomagnetic activities are very low. The quiet time day-to-day variation is considered to be due to irregular variability of the neutral wind, but little is known about how variable winds drive the electrojet variability. We employ a numerical model introduced by Liu et al. (2013), which takes into account weather changes in the lower atmosphere and thus can reproduce ionospheric variability due to forcing from below. The simulation is run for May and June 2009. Constant solar and magnetospheric energy inputs are used so that day-to-day changes will arise only from lower atmospheric forcing. The simulated electrojet current shows day-to-day variability of ±25%, which produces day-to-day variations in ground level geomagnetic perturbations near the magnetic equator. The current system associated with the day-to-day variation of the equatorial electrojet is traced based on a covariance analysis. The current pattern reveals return flow at both sides of the electrojet, in agreement with those inferred from ground-based magnetometer data in previous studies. The day-to-day variation in the electrojet current is compared with those in the neutral wind at various altitudes, latitudes, and longitudes. It is found that the electrojet variability is dominated by the zonal wind at 100-120 km altitudes near the magnetic equator. These results suggest that the response of the zonal polarization electric field to variable zonal winds is the main source of the day-to-day variation of the equatorial electrojet during quiet periods.

Yamazaki, Y.; Richmond, A. D.; Maute, A.; Liu, H.-L.; Pedatella, N.; Sassi, F.

2014-08-01

6

Cultural Support Workers and Long Day Care Services  

ERIC Educational Resources Information Center

In Australia, eligible long day care services may apply for support at the state level to assist with the transition of children from culturally or linguistically diverse backgrounds into childcare settings. For staff in childcare services, this support comes in the form of a cultural support worker (CSW). The primary role of a CSW is to build…

Miller, Melinda G.; Knowles, Meg; Grieshaber, Susan

2011-01-01

7

Automating Partial Period Bond Valuation with Excel's Day Counting Functions  

ERIC Educational Resources Information Center

An Excel model for calculating the actual price of bonds under a 30 day/month, 360 day/year day counting assumption by nesting the DAYS360 function within the PV function is developed. When programmed into an Excel spreadsheet, the model can accommodate annual and semiannual payment bonds sold on or between interest dates using six fundamental…

Vicknair, David; Spruell, James

2009-01-01

8

Sun-Earth Day Connects History, Culture and Science  

NASA Astrophysics Data System (ADS)

The NASA Sun-Earth Connection Education forum annually promotes and event called Sun-Earth Day: a national celebration of the Sun, the space around the Earth (geospace), and how all of it affects life on our planet. For the past 3 years this event has provided a venue by which classrooms, museums, planetaria, and at NASA centers have had a sensational time sharing stories, images, and activities related to the Sun-Earth connections and the views o fthe Sun from Earth. Each year we select a different theme by which NASA Space Science can be further related to cross-curricular activities. Sun-Earth Day 2002, "Celebrate the Equinox", drew parallels between Native American Cultures and NASA's Sun-Earth Connection research via cultural stories, interviews, web links, activities and Native American participation. Sun-Earth Day 2003, "Live From the Aurora", shared the beauty of the Aurora through a variety of activities and stories related to perspectives of Northern Peoples. Sun-Earth Day 2004 will share the excitement of the transit of Venus through comparisons of Venus with Earth and Mars, calculations of the distances to nearby stars, and the use of transits to identify extra-solar planets. Finally, Sun-Earth Day 2005 will bring several of these themes together by turning our focus to the history and culture surrounding ancient observatories such as Chaco Canyon, Machu Picchu, and Chichen Itza.

Cline, T.; Thieman, J.

2003-12-01

9

27 CFR 70.146 - 45-day period for making disbursements.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 false 45-day period for making disbursements. 70.146 Section 70...Taxes § 70.146 45-day period for making disbursements. Even though a...filing, or if earlier, before the person making the disbursements has actual notice...

2010-04-01

10

26 CFR 301.6323(d)-1 - 45-day period for making disbursements.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 false 45-day period for making disbursements. 301.6323(d)-1...6323(d)-1 45-day period for making disbursements. (a) In general...filing, or if earlier, before the person making the disbursements has actual notice...

2010-04-01

11

Evidence for a fundamental period of the sun and its relation to the 154 day complex of periodicities  

NASA Technical Reports Server (NTRS)

We have analyzed the longitude distributions of major flares observed in the 1955-1991 interval, referring them to coordinate systems rotating about axes tilted with respect to the rotation axis of the solar envelope. We find that the longitude distribution exhibits the largest modulation in the coordinate system with the following parameters: rotation period, 25.50 days; tilt angle of the rotation axis, 40 deg; tilt direction, toward the position of the earth on December 4 in its orbit around the sun. We interpret this as being due to an obliquely rotating structure (or a wave pattern rotating about an oblique axis) which has two exciters. We identify the period of 25.50 days as the fundamental period of the hypothetical 'clock' proposed by Bai and Sturrock (1991). The periods of the subharmonics are 51.0, 76.5, 102.0, 127.5, and 153.0 days, in agreement with periodicities found from analysis of flare occurrence times.

Bai, T.; Sturrock, P. A.

1993-01-01

12

A 154 day periodicity in the occurrence rate of proton flares  

NASA Technical Reports Server (NTRS)

We have analyzed periodicities in the occurrence rate of proton flares for solar cycles 19 through 21 (1955 to 1986) and have identified two epochs that exhibit a 154-day periodicity. These epochs are a 14-year interval from 1958 January through 1971 December and a 5.5-year interval from 1978 February to 1983 August. The best-determined period is 154.6. We have found that the phase of this periodicity changed between the above-mentioned two epochs by about one half of a period. It appears that the occurrence rate of proton flares is more sensitive to the 154-day periodicity than the occurrence rate of flares selected by other criteria.

Bai, Taeil; Cliver, E. W.

1990-01-01

13

Sun-Earth Day Connects History, Culture and Science  

Microsoft Academic Search

The NASA Sun-Earth Connection Education forum annually promotes and event called Sun-Earth Day: a national celebration of the Sun, the space around the Earth (geospace), and how all of it affects life on our planet. For the past 3 years this event has provided a venue by which classrooms, museums, planetaria, and at NASA centers have had a sensational time

T. Cline; J. Thieman

2003-01-01

14

A 20-day period standing oscillation in the northern winter stratosphere  

NASA Astrophysics Data System (ADS)

Observations of the ozone profile by a ground-based microwave radiometer in Switzerland indicate a dominant 20-day oscillation in stratospheric ozone, possibly related to oscillations of the polar vortex edge during winter. For further understanding of the nature of the 20-day oscillation, the ozone data set of ERA Interim meteorological reanalysis is analyzed at the latitude belt of 47.5° N and in the time from 1979 to 2010. Spectral analysis of ozone time series at 7 hPa indicates that the 20-day oscillation is maximal at two locations: 7.5° E, 47.5° N and 60° E, 47.5° N. Composites of the stream function are derived for different phases of the 20-day oscillation of stratospheric ozone at 7 hPa in the Northern Hemisphere. The streamline at Ψ = -2 × 107 m2 s-1 is in the vicinity of the polar vortex edge. The other streamline at Ψ = 4 × 107 m2 s1 surrounds the Aleutian anticyclone and goes to the subtropics. The composites show 20-day period standing oscillations at the polar vortex edge and in the subtropics above Northern Africa, India, and China. The 20-day period standing oscillation above Aral Sea and India is correlated to the strength of the Aleutian anticyclone.

Hocke, K.; Studer, S.; Martius, O.; Scheiben, D.; Kämpfer, N.

2013-04-01

15

Study of 23 day periodicity of Blazar Mkn501 in 1997  

E-print Network

We confirm a 23 day periodicity during a large flare in 1997 for X-ray data of X-ray satellite RXTE all sky monitor(ASM), 2 TeV gamma ray data from Utah Seven Telescope and HEGRA, with a Fourier analysis. We found the three results to be the same with a newly estimated error. We confirm the presence of a frequency dependent power (1/f noise) in a frequency-power diagram. Further, we calculated a chance probability of the occurrence of the 23 day periodicity by considering the 1/f noise and obtained a chance probability 4.88*10^-3 for the HEGRA data: this is more significant than previous result by an order. We also obtained an identical peridoicity with another kind of timing analysis-epoch folding method for the ASM data and HEGRA data. We strongly suggest an existence of the periodicity. We divided the HEGRA data into two data sets, analyzed them with a Fourier method, and found an unstableness of the periodicity with a 3.4 sigma significance. We also analyzed an energy spectra of the X-ray data of a RXTE proportional counter array and we found that a combination of three parameters-a magnetic field, a Lorentz factor, and a beaming factor-is related to the periodicity.

S. Osone

2005-06-14

16

XO-5b: A Transiting Jupiter-sized Planet with a 4 day Period  

Microsoft Academic Search

The star XO-5 (GSC 02959-00729, V=12.1, G8 V) hosts a Jupiter-sized, Rp=1.15+\\/-0.12 RJ, transiting extrasolar planet, XO-5b, with an orbital period of 4.2 days. The planet's mass, Mp=1.15+\\/-0.08 MJ, and surface gravity, gp=22+\\/-5 m s-2, are large for its orbital period compared to most other transiting planets. However, the deviation from the Mp-P relationship for XO-5b is not as large

Christopher J. Burke; P. R. McCullough; Jeff A. Valenti; Doug Long; Christopher M. Johns-Krull; P. Machalek; Kenneth A. Janes; B. Taylor; Michael L. Fleenor; C. N. Foote; Bruce L. Gary; Enrique García-Melendo; J. Gregorio; T. Vanmunster

2008-01-01

17

Search for evidence of a clock related to the solar 154 day complex of periodicities  

NASA Technical Reports Server (NTRS)

Evidence indicates that the 154-day periodicity in solar activity may be part of a complex of periodicities that are approximate multiples of 25.8 d, which suggests that the sun contains a 'clock' with frequency in the range 440-463 nHz. To search for evidence of this clock, the daily Greenwich sunspot areas and daily Zurich sunspot numbers have been Fourier-analyzed. The Zurich data show a strong peak that may clearly be identified with the fundamental frequency, while the Greenwich data show a peak that may be the harmonic of the fundamental frequency. A model is discussed which provides a kinematical interpretation of the sunspot spectrum.

Sturrock, P. A.; Bai, T.

1992-01-01

18

Growth of mallards fed phosphamidon for 13-day periods during three different developmental stages  

USGS Publications Warehouse

Mallard ducklings (Anas platyrhynchos) were exposed to a 13-day dietary treatment of O, 0.5, or 5.0 ppm phosphamidon at one of three successive age intervals (5-17 days, 18-30 days, or 31-43 days) during a 10-week growth period. Weekly measurements of body weight, wing length, primary feather length, and bill length revealed slower development of primary feathers in those birds treated from 5 to 17 days; treatment effects on body weight and wing length from 6 to 8 weeks of age were observed among those birds treated from 18 to 30 days of age. Some differences in growth patterns among birds treated with the same phosphamidon level, but at different growth stages, were attributed to the varying size of the group with which a duckling was housed at different times in the growth process. No brain cholinesterase depression was observed in any group either 24 h after phosphamidon treatment was terminated or at 10 weeks of age.

Haseltine, S.; Hensler, G.L.

1981-01-01

19

The ``missing link'': A 4-day period transiting exoplanet around OGLE-TR-111  

Microsoft Academic Search

We report the discovery of a transiting hot Jupiter around OGLE-TR-111, from our radial velocity follow-up of OGLE transiting candidates in Carina. The planet has a mass of 0.53 ± 0.11 MJ and a radius of 1.0+0.13-0.06 RJ. Three transiting exoplanets have already been found among OGLE candidates, all with periods near 1.5 days. The planet presented here, with P=4.0

Frederic Pont; Francois Bouchy; Didier Queloz; N. C. Santos; Claudio Melo; Michel Mayor; Stephane Udry

2004-01-01

20

Are central venous catheter tip cultures reliable after 6-day refrigeration?  

PubMed

Present guidelines recommend culturing only central venous catheter (CVC) tips from patients with suspected catheter-related bloodstream infection (CR-BSI). However, a high proportion of these suspicions are not confirmed. Moreover, CVC tip culture increases laboratory workload, and reports of colonization may be meaningless or misleading for the clinician. Our working hypothesis was that CVC tips should be refrigerated and cultured only in patients with positive blood cultures. We evaluated the effect of 6-day refrigeration of 215 CVC tips. We selected all the catheters with a significant count according to the Maki's roll-plate technique and randomly assigned them to 2 groups. In group A, the catheters were recultured after 24 h of refrigeration, and in group B, the catheters were recultured after 6 days more of refrigeration, so that the refrigeration time evaluated would be of 6 days. The yield of refrigerated CVC tips that grow significant colony counts of primary culture in group B was compared with the yield of refrigerated catheter tips in group A. The difference showed that 6-day refrigeration reduced the number of significant CVCs by 15.2%. Only 61 CVCs were obtained from patients with CR-BSI, and in most of them, blood cultures were already positive before CVC culture, so only 0.91% of the CR-BSI episodes would have been misdiagnosed as culture negative after refrigeration. Refrigeration of CVC tips sent for culture and culturing only those from patients with positive blood cultures reduce the workload in the microbiology laboratory without misdiagnosing CR-BSI. PMID:19501790

Bouza, Emilio; Guembe, Maria; Gómez, Haydee; Martín-Rabadán, Pablo; Rivera, Marisa; Alcalá, Luis

2009-07-01

21

26 CFR 301.6332-3 - The 21-day holding period applicable to property held by banks.  

...of such State. (c) 21-day holding period —(1) In general...process) only after 21 calendar days after the date the levy is made...request an extension of the 21-day holding period pursuant to paragraph (d)(2) of this...

2014-04-01

22

Regulation of period 1 expression in cultured rat pineal  

NASA Technical Reports Server (NTRS)

The aim of the present study was to investigate the in vitro expression of Period 1 (Per1), Period 2 (Per2) and arylalkylamine N-acetyltransferase (AA-NAT) genes in the rat pineal gland to understand the mechanism(s) regulating the expression of these genes in this organ. Pineals, when maintained in vitro for 5 days, did not show circadian rhythmicity in the expression of any of the three genes monitored. Norepinephrine (NE) induced AA-NAT and Per1, whereas its effect on Per2 was negligible. Contrary to what was observed in other systems, NE stimulation did not induce circadian expression of Per1. The effect of NE on Per1 level was dose- and receptor subtype-dependent, and both cAMP and cGMP induced Per1. Per1 was not induced by repeated NE - or forskolin - stimulation. Protein synthesis was not necessary for NE-induced Per1, but it was for reduction of Per1 following NE stimulation. Per1 transcription in pinealocytes was activated by BMAL1/CLOCK. Our results indicate that important differences are present in the regulation of these genes in the mammalian pineal. Copyright 2002 S. Karger AG, Basel.

Fukuhara, Chiaki; Dirden, James C.; Tosini, Gianluca

2002-01-01

23

The "missing link": a 4-day period transiting exoplanet around OGLE-TR-111  

E-print Network

We report the discovery of a transiting hot Jupiter around OGLE-TR-111, from our radial velocity follow-up of OGLE transiting candidates in Carina. The planet has a mass of 0.53 +- 0.11 M_J and a radius of 1.0 +0.13-0.06 R_J. Three transiting exoplanets have already been found among OGLE candidates, all with periods near 1.5 days. The planet presented here, with P=4.0 days, is the first exoplanet detected by transits with the characteristics of a "normal" hot Jupiter, as found in abundance by radial velocity surveys The radius of OGLE-TR-111b and the scarcity of hot Jupiters detected among OGLE transit candidates tend to indicate that the case of HD209458b, with a radius of 1.4 R_J, is exceptional, with most hot Jupiters being smaller.

Frederic Pont; Francois Bouchy; Didier Queloz; Nuno Santos; Claudio Melo; Michel Mayor; Stephane Udry

2004-08-26

24

BVRI photometry of Nova KT Eri 2009 in quiescence and the 752 day period  

NASA Astrophysics Data System (ADS)

We obtained extensive new BVRCIC photometry of Nova KT Eri 2009 over a 539-day interval during the post-outburst quiescence, from 30 September 2011 to 22 March 2013 (days +684 to +1223 past maximum). The median magnitudes we measured are B = 15.24, V = 15.00, RC = 14.75 and IC = 14.49. A marked variability is present (total amplitude of ?V = 1.6 mag). Accounting for a generally overlooked correction to blue photographic magnitudes calibrated against modern B-band data, we found that mean brightness and amplitude of variability of KT Eri in quiescence are the same before and after the 2009 nova outburst. The distance to KT Eri derived from standard relations involving the absolute magnitude at maximum vs rate of decline (MMRD), is ?6.5 kpc. At such a distance, to fit the BVRCIC + JHK flux distribution of KT Eri in quiescence requires an 8200 K blackbody with a radius of 3.5 R?, which is vastly larger than the radius of typical accretion disks of CVs and classical old novae (0.1 R?). The distance to KT Eri could therefore be much shorter than expected from MMRD relation. We also observed a new eclipse-like minimum to occur right on time following the 752 day period suspected to modulate the quiescence of KT Eri before the outburst. The nature of this period remains unclear. The faintness of KT Eri at infrared wavelengths (K = 14.1) precludes it from being the orbital period of the accreting WD, because in such a case the Roche lobe filling companion would be a cool giant shining at K?9 mag.

Munari, Ulisse; Dallaporta, Sergio

2014-02-01

25

A Simple Method for Multi-Day Imaging of Slice Cultures  

PubMed Central

The organotypic slice culture (Stoppini et al., 1991) has become the method of choice to answer a variety of questions in neuroscience. For many experiments however, it would be beneficial to image or manipulate a slice culture repeatedly, for example over the course of many days. We prepared organotypic slice cultures of the auditory brainstem of P3 and P4 mice and kept them in vitro for up to 4 weeks. Single cells in the auditory brainstem were transfected with plasmids expressing fluorescent proteins by way of electroporation (Haas et al., 2001). The culture was then placed in a chamber perfused with oxygenated ACSF and the labeled cell imaged with an inverted wide-field microscope repeatedly for multiple days, recording several time-points per day, before returning the slice to the incubator. We describe a simple method to image a slice culture preparation over to the course of multiple days and over many continuous hours, without noticeable damage to the tissue or photobleaching. Our method employs a simple, inexpensive custom-built insulator constructed around the microscope to maintain controlled temperature, and uses a perfusion chamber as used for in vitro slice recordings. PMID:19565635

Seidl, Armin H.; Rubel, Edwin W

2009-01-01

26

Search for evidence of a clock related to the solar 154 day complex of periodicities  

NASA Technical Reports Server (NTRS)

Evidence that has recently been compiled (Bai and Sturrock 1991) indicates that the enigmatic 154-day periodicity in solar activity may be viewed as part of a complex of periodicities that are approximate multiples of 25.8 days, suggesting that the Sun contains a 'clock' with frequency in the range 440 to 463 nano Hz. The clock may comprise either an oscillator or a rotator, each of which may be either real or virtual. We have reconsidered a previous spectrum analysis of the Zurich sunspot-number sequence by Knight, Schatten, and Sturrock (1979) which revealed a sharp, persistent and significant periodicity with a period of 12.072 days, corresponding to a frequency of about 958.8 nano Hz. This periodicity may be regarded as the (second) upper sideband of the second harmonic (2nu(sub R) + 2nu(sub E)) of a fundamental frequency of 447.7 nano Hz that is clearly within the search band. In this expression, nu(sub R) is the sidereal frequency of the hypothetical rotator and nu(sub E) is the frequency (31.69 nano Hz) of the Earth in its orbital motion around the Sun. In analyzing sunspot area data derived from the Greenwich data set, and on noting that any frequency is defined only to within the Nyquist frequency, we find clear evidence not only for the upper sideband of the second harmonic, but also for the second harmonic (2nu(sub R)) and the lower sideband of the second harmonic (2nu(sub R) - 2nu(sub E)). There is no strong peak at the fundamental frequency in the Greenwich data, but there is in the Zurich sunspot data. The effect of a linear oscillator is, to the lowest order in the amplitude, the same as the combined effect of two rotators of opposite polarities. A rotator that has arbitrary orientation with respect to the ecliptic may influence the outer layers of the Sun and thereby modulate the occurrence of solar activity such as sunspots. By analyzing a simple model, we find that such a rotator would influence surface activity in such a way that the spectrum of a 'signal' (such as the record of sunspots), as seen from the Earth, would contain components with frequencies that are certain integral combinations of nu(sub R) and nu(sub E). The amplitudes of the various components depend sensitively on theta, the angle between the axis of the rotator and the axis of the Earth's orbital motion. This simple model therefore offers a kinematical (but not dynamical) interpretation of the sunspot spectrum. The present analysis, while offering support of our conjectures that the Sun contains a clock that regulates the 154-day complex of periodicities, cannot distinguish between an osillator or a rotator (that might be a traveling wave), nor between a real rotator or a virtual rotator (that might be an apparent traveling wave due to the aliasing effect of an oscillator in a rotating system). Further analysis of sunspot and other data sets will be required to confirm the existence of such clock and (if it is real) to determine its physical nature.

Sturrock, P. A.; Bai, T.

1992-01-01

27

Lisinopril indifferently improves heart rate variability during day and night periods in spontaneously hypertensive rats.  

PubMed

The aim of this work was to investigate the effect of 10 weeks of lisinopril treatment to spontaneously hypertensive rats (SHRs) on day/night variations of blood pressure, heart rate and autonomic cardio-regulation parameters. Male SHR with surgically implanted radio-telemetry implant that provided direct measurements of arterial pressure and electrocardiogram wave were used. Animals were allocated to two groups (n=5 each). The first group was treated with lisinopril (20 mg/kg by gavage) daily for 10 weeks (treated group); whereas the second was gavaged daily with tap water (untreated group). Arterial blood pressure, ECG and other telemetry parameters were recorded at the start and at the end of 10-week treatment. Collected data were analyzed using specialized software and were statistically tested. In addition to the expected lowering of blood pressure, spectral analysis of R-R intervals revealed that lisinopril treatment for 10 weeks significantly caused 2-3 fold increase in heart rate variability (HRV) during both active and inactive periods. However, R-R interval durations demonstrated variable distribution patterns during those periods. The cause of observed distribution pattern of R-R intervals during active and inactive periods may be of significance to better understand HRV changes and warrants further investigations. PMID:23489185

Albarwani, S; Al-Siyabi, S; Tanira, M O

2013-07-18

28

31 CFR 800.502 - Beginning of thirty-day review period.  

...business day, no later than the next business day after the thirtieth day. (c) The Staff Chairperson shall promptly...designation of any lead agency or agencies. (d) Within two business days after receipt of an agency notice by the...

2014-07-01

29

GENE EXPRESSION PATTERNS OF CD-1 DAY-8 EMBRYO CULTURES EXPOSED TO BROMOCHLORO ACETIC ACID  

EPA Science Inventory

Gene expression patterns of CD-1 day-8 embryo cultures exposed to bromochloro acetic acid Edward D. Karoly?*, Judith E. Schmid* and E. Sidney Hunter III* ?Curriculum in Toxicology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina and *Reproductiv...

30

E~ERIMENTS IN THE CULTURE OF FRESH-WATER By ARTHUR DAY HOWARD,  

E-print Network

E~ERIMENTS IN THE CULTURE OF FRESH-WATER MUSSELS. By ARTHUR DAY HOWARD, Assistant, U. S. Bureau. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 INTRODUCTION. The coming of fresh-water mussels to a position of commercial importance in America the U. S. Bureau of Fisheries undertook an extensive inves- tigation of the commercial fresh-water

31

Day2013 Wednesday, October 23 Food = Community: A Dialog On Food Culture  

E-print Network

Food Day2013 Wednesday, October 23 Food = Community: A Dialog On Food Culture 6pm · Foggy Bottom the healthy options specially offered by GW partners, buy fresh foods at local farmer's markets, a noted culinary historian, author, and lecturer. Food and nutrition books will be highlighted to check

Vertes, Akos

32

Periodicity  

NSDL National Science Digital Library

In thinking about a title for this chapter, the word periodicity came to mind. I was sure this had some kind of pop culture reference. After discussing this with my wife, we figured I was thinking of synchronicity, which is a reference to music by the band, The Police. Looking the word Periodicity up on the internet, I found that I was, in fact, a science geek and had not made a hip reference. Periodicity refers mainly to the Periodic Table, which is a focus of this chapter. No music, just science.

Robertson, William C.

2007-01-01

33

XO-5b: A Transiting Jupiter-sized Planet With A Four Day Period  

E-print Network

The star XO-5 (GSC 02959-00729, V=12.1, G8V) hosts a Jupiter-sized, Rp=1.15+/-0.12 Rjup, transiting extrasolar planet, XO-5b, with an orbital period of P=4.187732+/-0.00002 days. The planet mass (Mp=1.15+/-0.08 Mjup) and surface gravity (gp=22+/-5 m/s^2) are significantly larger than expected by empirical Mp-P and Mp-P-[Fe/H] relationships. However, the deviation from the Mp-P relationship for XO-5b is not large enough to suggest a distinct type of planet as is suggested for GJ 436b, HAT-P-2b, and XO-3b. By coincidence XO-5 overlies the extreme H I plume that emanates from the interacting galaxy pair NGC 2444/NGC 2445 (Arp 143).

Christopher J. Burke; P. R. McCullough; Jeff A. Valenti; Doug Long; Christopher M. Johns-Krull; P. Machalek; Kenneth A. Janes; B. Taylor; Michael L. Fleenor; Cindy N. Foote; Bruce L. Gary; Enrique Garcia-Melendo; J. Gregorio; T. Vanmunster

2008-05-15

34

A New Model for Long-Period Tidal Variations in Length of Day  

NASA Astrophysics Data System (ADS)

The standard IERS model for tidal variations in length of day (LOD), covering the band from one week to 18.6 years, stems from a 30-year-old paper by Yoder, Williams, and Parke. Their original table has been updated in the latest adopted standards by modifying only a few constituents: four constituents were adjusted for effects of mantle anelasticity and two constituents for effects of ocean tides. We here present a new, consistent, and comprehensive model. While Yoder et al. employed 62 tidal spectral lines, we employ 80, most of the new lines being higher frequency lines that are now detectable, or nearly detectable, in LOD measurements. We employ an anelastic model of Wahr and Bergen consistently to all lines throughout the entire long-period band, although there remains uncertainty in extrapolating to the lowest frequencies. Our model of ocean tides builds on recent experience modeling the fortnightly Mf tide (Ray and Egbert, Geophys. J. Int., 2012), for which good observational data allow extensive testing of both the numerical ocean model and the Wahr-Bergen anelastic model. Ocean model improvements now appear adequate to remove our dependence on data assimilation for Mf (at least for earth-rotation effects), which is a critical requirement before extending to other frequencies that lack reliable observational constraints. We have run the model for 12 major long-period constituents. The ocean-tide admittance at these 12 frequencies is then interpolated smoothly to all other lines, while relaxing to self-consistent equilibrium for the node tide. Application of this new model to a modern time series of space-geodetic LOD measurements shows a significant reduction in variance compared with the current IERS model. For example, in the 10-70 cpy band, the variance is reduced by 8%.

Ray, R. D.; Erofeeva, S.

2012-12-01

35

The 77 day periodicity in the flare rate of cycle 22  

NASA Technical Reports Server (NTRS)

The ocurrence times of major flares of solar cycle 22 are analyzed to detect periodicities. It is found that a periodicity of 77 d was in operation in the 15-m interval from 1988 November to 1990 February for six cycles. During the rest of 1990 no periodicity was discernible; however, it seems that the 77-d periodicity resumed in 1991. This 77-d period is interpreted as the third subharmonic of the fundamental period of about 25.5 d. In this interpretation, the 154-d periodicity is the sixth subharmonic. It is also found that when the 77-d periodicity or the 154-d periodicity is in operation the occurrence rate of major flares is much higher than is expected form the relative sunspot number.

Bai, T.

1992-01-01

36

CTEPP DATA COLLECTION FORM 10 (PERIODS 1-3): DAY CARE CENTER CHILD ACTIVITY DIARY AND FOOD SURVEY  

EPA Science Inventory

This data collection form collects information on the child's activities at the day care center over the 48-hr monitoring period. The diary is divided into three time periods over the 48-monitoring interval. The Food Survey collects information on the frequency and types of frui...

37

Acute Disseminated Aspergillosis During the Neonatal PeriodReport of an Instance in a 14-day-old Infant  

Microsoft Academic Search

We describe an infant who died with extensive lesions of disseminated aspergillosis on the 18th day of postnatal life. Aspergillus fumigatus was re covered from blood cultures. Initial clinical manifestations were suggestive of hepatitis, and steroids and antibiotics were used in the treatment. This therapy may have fostered the onset of an opportunistic mycosis. Advanced multi- systemic aspergillotic lesions were

F. Gonzalez-Crussi; L. David Mirkin; Robert M. Wyllie; Marilyn Escobedo

1979-01-01

38

Discovery of a 115 Day Orbital Period in the Ultraluminous X-ray Source NGC 5408 X-1  

NASA Technical Reports Server (NTRS)

We report the detection of a 115 day periodicity in SWIFT/XRT monitoring data from the ultraluminous X-ray source (ULX) NGC 5408 X-1. Our o ngoing campaign samples its X-ray flux approximately twice weekly and has now achieved a temporal baseline of ti 485 days. Periodogram ana lysis reveals a significant periodicity with a period of 115.5 +/- 4 days. The modulation is detected with a significance of 3.2 x 10(exp -4) . The fractional modulation amplitude decreases with increasing e nergy, ranging from 0.13 +/- 0.02 above 1 keV to 0.24 +/- 0.02 below 1 keV. The shape of the profile evolves as well, becoming less sharply peaked at higher energies. The periodogram analysis is consistent wi th a periodic process, however, continued monitoring is required to c onfirm the coherent nature of the modulation. Spectral analysis indic ates that NGC 5408 X-1 can reach 0.3 - 10 keV luminosities of approxi mately 2 x 10 40 ergs/s . We suggest that, like the 62 day period of the ULX in M82 (X41.4-1-60), the periodicity detected in NGC 5408 X-1 represents the orbital period of the black hole binary containing the ULX. If this is true then the secondary can only be a giant or super giant star.

Strohmayer, Tod E.

2009-01-01

39

Cultural factors in orthodox Jewish adolescents treated in a day program for eating disorders.  

PubMed

This study explores the specific role of culture and religion in the development of eating disorders (ED) in Orthodox Jewish female adolescents. We present eight cases admitted to a Day Treatment Program (DTP) for Eating Disorders. Additionally, some preliminary comparisons are examined between Orthodox and all other patients, and also between ultra and modern Orthodox patients. All eight adolescents were transferred from inpatient care, three met program treatment goals, two left prematurely, and three required re-hospitalization. The only significant differences between the Orthodox group and all other patients were on length of stay in the DTP and current use of psychotropic medications. Overall, results suggest that Orthodox patients and all other patients show similar ED presentation and course. However, there are unique cultural and religious circumstances, which require consultation with rabbinic authorities. PMID:12613113

Dancyger, Ida; Fornari, Victor; Fisher, Martin; Schneider, Marcie; Frank, Shawn; Wisotsky, Willo; Sison, Cristina; Charitou, Marina

2002-01-01

40

Mediterraneità and modernità : architecture and culture during the period of Italian colonization of North Africa  

E-print Network

This dissertation examines the intersection of the modern and the colonial in architecture and culture during the period of Italian colonization of North Africa from 1911 to 1943. Rather than see the colonies as merely a ...

McLaren, Brian L. (Brian Lloyd), 1958-

2001-01-01

41

The effects of firocoxib (Previcox) in geriatric dogs over a period of 90 days.  

PubMed

The long-term use of non-steroidal anti-inflammatory agents in geriatric dogs with osteoarthritis has not been well studied in veterinary medicine. This study evaluated the effects of firocoxib administered to dogs over 7 years of age for 90 days. Pain and lameness scores were evaluated by the owner weekly for the 1st month and then biweekly through to the end of the study, the veterinarian evaluated the dogs monthly. Serum chemistry, including urea, creatinine, alanine transferase, aspartate transaminase, bile acids and bilirubin, urine specific gravity and a urine dipstick, were performed at monthly intervals. Forty-five dogs were enrolled into the treatment group and 9 into the control group. A total of 33 dogs completed the trial in the treatment group and 8 in the control group. Lameness and pain scores were found to be significantly lower in the treated group from day 30 for most parameters evaluated. Bile acids (although not comparable to controls, with higher mean value and a high standard deviation in the control group; in addition the control group had increased bile acids at day 0) and urea (within normal reference range provided (WNL)) were significantly different in the treatment group between days 0 and 90. Urea (WNL) on days 30 and 90 and creatinine (WNL) on day 90 were significantly different between the control group and the treatment group. The most common adverse events reported were diarrhoea, vomition, dark faeces and anorexia. This study showed that firocoxib was effective in managing pain associated with osteoarthritis for 90 days. Despite the geriatric high-risk population used for this study, minimal biochemical changes were seen and adverse drug events seen were in agreement with those previously reported. PMID:20169752

Joubert, K E

2009-09-01

42

A 14-day period of hindpaw sensory deprivation enhances the responsiveness of rat cortical neurons  

Microsoft Academic Search

Hypodynamia-hypokinesia (HH) is a model of hindpaw sensory deprivation. It is obtained by unloading of the hindquarters during 14 days. In this situation, the feet are not in contact with the ground and as a consequence, the cutaneous receptors are not activated; the sensory input to the primary somatosensory cortex (SmI) is thus reduced. In a previous study, we have

E Dupont; M.-H Canu; M Falempin

2003-01-01

43

On the Stability of the 421-day Periodicity in A0538-66  

E-print Network

In this paper we analyse 70 years of archival Harvard and Schmidt plate data of the 16.6 d Be X-ray binary A0538-66 in order to search for the presence of the long-term period of 420.82 +/- 0.79 d found in MACHO photometry (Alcock et al. 2001). We find evidence for a long-term period of 421.29 +/- 0.95 d in the archival data, and examine its stability. We also combine the archival and MACHO datasets in order to improve the accuracy of the orbital period determination, using a cycle-counting analysis to refine its value to 16.6460 +/- 0.0004 d. We also test the model proposed in our previous paper (Alcock et al. 2001) with observations documented in the literature for A0538-66 from 1980-1995, constraining the system inclination to be i > 74.9 +/- 6.5 deg.

Katherine E. McGowan; Phil A. Charles

2002-11-01

44

GLOBAL CHANGE RESEARCH NEWS #20: 60-DAY PUBLIC COMMENT PERIOD FOR "OVERVIEW" REPORT FROM U.S. NATIONAL ASSESSMENT  

EPA Science Inventory

The draft "Overview" report from the U.S. National Assessment was released today for a 60-day public comment period. The report, entitled "Climate Change Impacts on the United States: The Potential Consequences of Climate Variability and Change," was written by the National Asses...

45

78 FR 69077 - Notice of 30-Day Public Review Period and Availability of Final Environmental Assessment and...  

Federal Register 2010, 2011, 2012, 2013

This notice provides information on the 30-day public review period and availability of a Final Environmental Assessment (EA) and Draft Finding of No Significant Impact (FONSI) for the Department of Navy's (DoN) transfer of excess property at Naval Air Station (NAS) Alameda, Alameda,...

2013-11-18

46

Building enterprise-wide resilience by integrating business continuity capability into day-to-day business culture and technology.  

PubMed

This paper follows the development of the business continuity planning (BCP) programme at Lehman Brothers following the events of September 11th. Previous attempts to implement a `traditional' form of BCP had been ineffective, but following the events, the firm began to look at BCP in a new light. This paper deals with three main themes: creating a culture of resiliency, leveraging technology, and building flexible plans. Distributing accountability for BCP to business line managers, integrating BCP change management into the normal course of business, and providing every employee with personalised BCP information breeds a culture of resiliency where people are empowered to react to events without burdensome, hierarchical response and recovery procedures. Building a strong relationship with one's application development community can result in novel, customised BCP solutions; existing systems and data structures can be used to enhance an existing BCP. Even the best plans are often challenged by events; understanding that flexibility is essential to effective incident response is a critical element in the development of a proper business continuity plan. PMID:21339108

Alesi, Patrick

2008-04-01

47

Finding a 24 Day Orbital Period for the X-Ray Binary 1A 1118-616  

NASA Technical Reports Server (NTRS)

We report the first determination of the binary period and the orbital ephemeris of the Be X-ray binary containing the pulsar IA 1118-616 (35 years after the discovery of the source). The orbital period is found to be P(sub orb) = 24.0+/-0.4 days. The source was observed by RXTE during its last big X-ray outburst in January 2009, peaking at MJD 54845.4. This outburst was sampled by taking short observations every few days, covering an elapsed time comparable to the orbital period. Using the phase connection technique, pulse arrival time delays could be measured and an orbital solution determined. The data are consistent with a circular orbit, the time of 90 degrees longitude was found to be T,/2 = MJD 54845.37(10), coincident with the peak X-ray flux.

Staubert, R.; Pottschmidt, K.; Doroshenko, V.; Wilms, J.; Suchy, S.; Rothschild, R.; Santangelo, A.

2010-01-01

48

The 54-day orbital period of AX J1820.5-1434 unveiled by Swift  

NASA Astrophysics Data System (ADS)

Context. The hard X-ray survey that Swift Burst Alert Telescope (BAT) has been performing since late 2004 provides a considerable database for a large number of sources, whose hard X-ray emission are poorly known. Aims: We exploit the BAT survey archive to improve the temporal and spectral characterization of the Galactic hard-X-ray sources. We focus here on the study of the high mass X-ray binary AX J1820.5-1434. Methods: All the data relevant to AX J1820.5-1434 were extracted from the BAT survey archive and analyzed using a folding technique to search for periodical modulations. A broad-band spectral analysis was also performed, complementing the BAT spectrum with the available Swift X-Ray Telescope (XRT) and XMM-Newton pointed observations. Results: A timing analysis revealed the detection of a coherent signal at P0 = 54.0 ± 0.4 d, which we interpret as the orbital period of the binary system. When folded with a period of P0, the light curve shows an asymmetric profile with a minimum roughly consistent with zero intensity. The broadband spectral analysis coupling Swift-XRT, XMM-Newton, and Swift-BAT spectra confirms that the source emission is well modeled with a strongly absorbed power law with no evidence of a high energy exponential cutoff.

Segreto, A.; La Parola, V.; Cusumano, G.; D'Aì, A.; Masetti, N.; Campana, S.

2013-10-01

49

76 FR 16030 - 60-Day Notice of Proposed Information Collection: Bureau of Educational and Cultural Affairs...  

Federal Register 2010, 2011, 2012, 2013

...Evaluation, Evaluation Division: Sports & Culture Evaluation Kennedy Center Mentor Survey...Evaluation, Evaluation Division: Sports & Culture Evaluation Kennedy Center Mentor Survey...V as part of their larger Sports and Culture Evaluation to conduct a survey of...

2011-03-22

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76 FR 16029 - 60-Day Notice of Proposed Information Collection: Bureau of Educational and Cultural Affairs...  

Federal Register 2010, 2011, 2012, 2013

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2011-03-22

51

76 FR 16033 - 60-Day Notice of Proposed Information Collection: Bureau of Educational and Cultural Affairs...  

Federal Register 2010, 2011, 2012, 2013

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2011-03-22

52

76 FR 16032 - 60-Day Notice of Proposed Information Collection: Bureau of Educational and Cultural Affairs...  

Federal Register 2010, 2011, 2012, 2013

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2011-03-22

53

76 FR 16033 - 60-Day Notice of Proposed Information Collection: Bureau of Educational and Cultural Affairs...  

Federal Register 2010, 2011, 2012, 2013

...Evaluation, Evaluation Division: Sports & Culture Evaluation IVLP Survey, OMB Control Number...Evaluation, Evaluation Division: Sports & Culture Evaluation IVLP Survey. OMB Control...V as part of their larger Sports and Culture Evaluation to conduct a survey of...

2011-03-22

54

76 FR 16031 - 60-Day Notice of Proposed Information Collection: Bureau of Educational and Cultural Affairs...  

Federal Register 2010, 2011, 2012, 2013

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2011-03-22

55

76 FR 16031 - 60-Day Notice of Proposed Information Collection: Bureau of Educational and Cultural Affairs...  

Federal Register 2010, 2011, 2012, 2013

...Evaluation, Evaluation Division: Sports & Culture Evaluation Kennedy Center Visitors Survey...Evaluation, Evaluation Division: Sports & Culture Evaluation Kennedy Center Visitors Survey...V as part of their larger Sports and Culture Evaluation to conduct a survey of...

2011-03-22

56

XO-5b: A Transiting Jupiter-sized Planet With A Four Day Period  

Microsoft Academic Search

The star XO-5 (GSC 02959-00729, V=12.1, G8V) hosts a Jupiter-sized,\\u000aRp=1.15+\\/-0.12 Rjup, transiting extrasolar planet, XO-5b, with an orbital\\u000aperiod of P=4.187732+\\/-0.00002 days. The planet mass (Mp=1.15+\\/-0.08 Mjup) and\\u000asurface gravity (gp=22+\\/-5 m\\/s^2) are significantly larger than expected by\\u000aempirical Mp-P and Mp-P-[Fe\\/H] relationships. However, the deviation from the\\u000aMp-P relationship for XO-5b is not large enough to suggest a

Christopher J. Burke; P. R. McCullough; Jeff A. Valenti; Doug Long; Christopher M. Johns-Krull; P. Machalek; Kenneth A. Janes; B. Taylor; Michael L. Fleenor; Cindy N. Foote; Bruce L. Gary; Enrique Garc ´ õa-Melendo; J. Gregorio; T. Vanmunster

2008-01-01

57

The response of middle atmospheric ozone to solar UV irradiance variations with a period of 27 days  

NASA Technical Reports Server (NTRS)

A one-dimensional photochemical-dynamical-radiative time-dependent model was used to study the response of middle atmospheric temperature and ozone to solar UV irradiance variations with the period of 27 days. The model solar UV O(x), HO(x), NO(x), and CIO(x)families and modeled solar UV variations. The amplitude of the primary temperature response to the solar UV variation is plus 0.4 K at 85-90 km with a phase lag of about 6 days. A secondary maximum response of plus 0.3 K at 45-50 km appears with a phase lag of 1 day. There is a maximum positive ozone response to the 27-day solar UV oscillation of 2.5 percent at 80-90 km with a phase lag of about 10 days after the solar irradiance maximum. At 70 km the ozone response is about 1.2 percent and is out of phase with the solar variation. In the upper stratosphere (40-50 km) the relative ozone variation is small, about 0.2 percent to 0.3 percent, and there is a negative phase of about 4 days between the ozone and solar oscillations. These oscillations are in phase in the middle stratosphere (35-40 km) where there is again a maximum relative response of about 0.6 percent. The reasons for these ozone amplitude and phase variations are discussed.

Chen, LI; Brasseur, Guy; London, Julius

1994-01-01

58

Electromagnetic induction in the oceans and the anomalous behaviour of coastal C-responses for periods up to 20 days  

NASA Astrophysics Data System (ADS)

Electromagnetic transfer functions at coastal sites are known to be strongly distorted by the conductivity of the seawater. This ocean effect is generally considered to be small for periods greater than a few days. We revise this statement by detailed and systematic model studies in the period range from 1 to 64 days, with subsequent comparison of the modelled and observed electromagnetic responses. The conductivity model consists of a radial symmetric (1-D) section that is overlaid by a thin spherical surface shell, the conductance of which is compiled using the NOAA ETOPO topography/bathymetry and map of sediment thicknesses. The simulations were performed for spatial resolutions of the surface shell of 5° × 5°, 2° × 2° and 1° × 1°, respectively, and for two, continental and oceanic, underlying 1-D conductivity models. The inducing source is described by the spherical harmonic P10 in dipole coordinates. Comparisons are made for the coastal geomagnetic observatories Apia, Hermanus, Kakioka, Kanoya, and Simosato where an anomalous behaviour of the local response has been previously detected. From the comparison of observed and modelled responses we conclude that peculiarities in the observed coastal responses in the period range from 1 to 20 days can be explained to a large amount by induction in the oceans. We show that correction for the ocean effect results in responses that are much better interpretable by 1-D conductivity models compared to the uncorrected responses.

Kuvshinov, Alexei V.; Olsen, Nils; Avdeev, Dmitry B.; Pankratov, Oleg V.

2002-06-01

59

Latino Families in the Perinatal Period: Cultural Issues in Dealing with the HealthCare System  

Microsoft Academic Search

Migration of young Latinos and Latinas has increased in many towns in the Midwest. These young people will experience the perinatal period in a new cultural environment. We focus on the interface between families of Latino origin and the Midwest health-care system, particularly in the care of the pregnant woman or couple and in the care of the infant. Issues

J. Martin Maldonado-Duran; Maria Manguia-Wellman; Sari Lubin; Teresa Lartigue

2002-01-01

60

Global Characteristics of the Correlation and Time Lag Between Solar and Ionospheric Parameters in the 27-day Period  

NASA Technical Reports Server (NTRS)

The 27-day variations of topside ionosphere are investigated using the in-situ electron density measurements from the CHAMP planar Langmuir probe and GRACE K-band ranging system. As the two satellite systems orbit at the altitudes of approx. 370 km and approx. 480 km, respectively, the satellite data sets are greatly valuable for examining the electron density variations in the vicinity of F2-peak. In a 27-day period, the electron density measurements from the satellites are in good agreements with the solar flux, except during the solar minimum period. The time delays are mostly 1-2 day and represent the hemispherical asymmetry. The globally-estimated spatial patterns of the correlation between solar flux and in-situ satellite measurements show poor correlations in the (magnetic) equatorial region, which are not found from the ground measurements of vertically-integrated electron content. We suggest that the most plausible cause for the poor correlation is the vertical movement of ionization due to atmospheric dynamic processes that is not controlled by the solar extreme ultraviolet radiation.

Lee, Choon-Ki; Han, Shin-Chan; Dieter,Bilitza; Ki-Weon,Seo

2012-01-01

61

What Time Periods of the Day Are Concerning for Parents of Children with Attention Deficit Hyperactivity Disorder?  

PubMed Central

Background/Aim The questionnaire-children with difficulties (QCD) is a parent-assessed questionnaire designed to evaluate a child’s difficulties in functioning during specific time periods of the day. In this study, the QCD was applied to determine the time periods of the day that are concerning for the parents of children with attention deficit hyperactivity disorder (ADHD). The results were compared with those for a community sample. Methods Elementary and junior high school students with ADHD (243 boys, 55 girls) and a community sample of children (518 boys, 618 girls) were enrolled in this study. Their behaviors were assessed by the QCD, the ADHD-rating scale (ADHD-RS), and the Oppositional Defiant Behavior Inventory (ODBI). The effects of gender (boy/girl) and diagnosis (ADHD/community sample) on the total QCD score were analyzed across each school grade (elementary/junior high school). Correlation coefficients between QCD and ADHD-RS/ODBI scores were analyzed. Results The QCD score for the ADHD group was significantly lower than that for the community sample (P < 0.001). There were significantly strong correlations between “evening” and ADHD-RS and ODBI scores for all children with ADHD (r > 0.41, P < 0.001) and between “night” and inattention and oppositional symptoms for the girls with ADHD (r > 0.40, P < 0.001). Conclusions Parents reported that children with ADHD faced greater difficulties in completing basic daily activities compared with the community controls, particularly in the evening. Furthermore, these difficulties were related to the severity of ADHD symptoms. The parents’ perceptions depended on the gender, ADHD and oppositional symptoms, and the time period of the day. This study determined that children with ADHD face greater difficulties in daily functioning compared with community sample children, that these difficulties are time-dependent, and that these difficulties were particularly experienced in the evening. PMID:24224007

Usami, Masahide; Okada, Takashi; Sasayama, Daimei; Iwadare, Yoshitaka; Watanabe, Kyota; Ushijima, Hirokage; Kodaira, Masaki; Sugiyama, Nobuhiro; Sawa, Tetsuji; Saito, Kazuhiko

2013-01-01

62

The role of 3D microenvironmental organization in MCF-7 epithelial–mesenchymal transition after 7 culture days  

SciTech Connect

We present a multi-technique study on in vitro epithelial–mesenchymal transition (EMT) in human MCF-7 cells cultured on electrospun scaffolds of poly(L-lactic acid) (PLA), with random and aligned fiber orientations. Our aim is to investigate the morphological and genetic characteristics induced by extracellular matrix in tumor cells cultured in different 3D environments, and at different time points. Cell vitality was assessed with AlamarBlue at days 1, 3, 5 and 7. Scanning electron microscopy was performed at culture days 3 and 7. Immunohistochemistry (for E-cadherin, ?-catenin, cytokeratins, nucleophosmin, tubulin, Ki-67 and vimentin), immunofluorescence (for F-actin) western blot (for E-cadherin, ?-catenin and vimentin) and transmission electron microscopy were carried out at day 7. An EMT gene array followed by PCR analysis confirmed the regulation of selected genes. At day 7, scanning electron microscopy on aligned-PLA revealed spindle-shaped cells gathered in buds and ribbon-like structures, with a higher nucleolar/nuclear ratio and a loss in E-cadherin and ?-catenin at immunohistochemistry and western blot. An up-regulation of SMAD2, TGF-?2, TFPI2 and SOX10 was found in aligned-PLA compared to random-PLA cultured cells. The topography of the extracellular matrix has a role in tumor EMT, and a more aggressive phenotype characterizes MCF-7 cells cultured on aligned-PLA scaffold. -- Highlights: • After 7 culture days an aligned-PLA scaffold induces a spindle shape to MCF-7 cells. • Despite these changes, the aligned MCF-7 cells keep an epithelial phenotype. • The extracellular environment alone influences the E-cadherin/?-catenin axis. • The extracellular environment can promote the epithelial–mesenchymal transition.

Foroni, Laura [Pathology Unit, Department of Haematology, Oncology and Clinical Pathology, S. Orsola-Malpighi Hospital, Bologna University (Italy); Vasuri, Francesco, E-mail: vasurifrancesco@libero.it [Pathology Unit, Department of Haematology, Oncology and Clinical Pathology, S. Orsola-Malpighi Hospital, Bologna University (Italy); Chair of Vascular Surgery, Department of Specialistic Surgery and Anaesthesiological Sciences, S. Orsola-Malpighi Hospital, Bologna University (Italy); Valente, Sabrina [Pathology Unit, Department of Haematology, Oncology and Clinical Pathology, S. Orsola-Malpighi Hospital, Bologna University (Italy); Gualandi, Chiara [Department of Chemistry “G. Ciamician” and National Consortium of Materials Science and Technology (INSTM, RU Bologna), Bologna University (Italy); Focarete, Maria Letizia [Department of Chemistry “G. Ciamician” and National Consortium of Materials Science and Technology (INSTM, RU Bologna), Bologna University (Italy); Health Science and Technologies–Interdepartmental Center for Industrial Research (HST-ICIR), Bologna University (Italy); Caprara, Giacomo [Pathology Unit, Department of Haematology, Oncology and Clinical Pathology, S. Orsola-Malpighi Hospital, Bologna University (Italy); Scandola, Mariastella [Department of Chemistry “G. Ciamician” and National Consortium of Materials Science and Technology (INSTM, RU Bologna), Bologna University (Italy); D'Errico-Grigioni, Antonia; Pasquinelli, Gianandrea [Pathology Unit, Department of Haematology, Oncology and Clinical Pathology, S. Orsola-Malpighi Hospital, Bologna University (Italy)

2013-06-10

63

The Day Bolivian Students Came to School Motivating Students through Culture  

ERIC Educational Resources Information Center

Like many elementary foreign language teachers, the author traveled from room to room to teach. Each room had different materials and a different classroom culture. This article describes how the author taught her students about Bolivia and how to motivate them through culture. It discusses a service-learning project that brings life-changing…

Davin, Kristin

2010-01-01

64

Ecological momentary assessment of maternal cortisol profiles over a multiple-day period predict the length of human gestation  

PubMed Central

OBJECTIVE Biobehavioral models of prenatal stress highlight the importance of the stress-related hormone cortisol. However, the association between maternal cortisol levels and length of human gestation require further investigation because most previous studies have relied on one-time cortisol measures assessed at varying gestational ages. This study assessed whether ecological momentary assessment (EMA) of cortisol sampling improves the ability to predict the length of human gestation. In addition, associations between EMA based measures of psychological state (negative affect) with cortisol levels during pregnancy were assessed. METHODS Over a 4-day period, 25 healthy pregnant women (mean gestational age at assessment 23.4 ± 9.1 weeks) collected 7 salivary samples per day for assessment of cortisol and provided a rating of negative affect every waking hour using an electronic diary. RESULTS Higher salivary cortisol concentrations at awakening and throughout the day (p=.001) as well as a flatter cortisol response to awakening (p=.005) were associated with shorter length of gestation. Women delivering at 36 weeks gestations had 13% higher salivary cortisol levels at awakening than women delivering at 41 weeks gestation. The EMA-based measure of negative affect was associated with higher cortisol throughout the day (p=.006), but not to gestational length (p=.641). The one-time measure of cortisol was not associated with length of gestation, and traditional retrospective recall measures of negative affect were not associated with cortisol. CONCLUSION Our findings support the ecological validity of repeated ambulatory assessments of cortisol in pregnancy and their ability to improve the prediction of adverse birth outcomes. PMID:21700714

Entringer, Sonja; Buss, Claudia; Andersen, Judith; Chicz-DeMet, Aleksandra; Wadhwa, Pathik D.

2011-01-01

65

Cultural/Favorite Recipe Day: Strengthening Approaches to Increase Culturally Diverse Foods Served in Head Start Meals  

ERIC Educational Resources Information Center

One approach to halting the childhood obesity epidemic has been the modification of foods available to children during the school day. In recent years there has been an increased focus on obesity prevention efforts among children ages birth to 5 and the role of child care settings in prevention efforts. Head Start serves as an important venue for…

Hoffman, Jessica A.; Agrawal, Tara; Carter, Sonia; Grinder, AnnMarie; Castaneda-Sceppa, Carmen

2012-01-01

66

Postnatal day 2 to 11 constitutes a 5-HT-sensitive period impacting adult mPFC function.  

PubMed

Early-life serotonin [5-hydroxytryptamine (5-HT)] signaling modulates brain development, which impacts adult behavior, but 5-HT-sensitive periods, neural substrates, and behavioral consequences remain poorly understood. Here we identify the period ranging from postnatal day 2 (P2) to P11 as 5-HT sensitive, with 5-HT transporter (5-HTT) blockade increasing anxiety- and depression-like behavior, and impairing fear extinction learning and memory in adult mice. Concomitantly, P2-P11 5-HTT blockade causes dendritic hypotrophy and reduced excitability of infralimbic (IL) cortex pyramidal neurons that normally promote fear extinction. By contrast, the neighboring prelimbic (PL) pyramidal neurons, which normally inhibit fear extinction, become more excitable. Excitotoxic IL but not PL lesions in adult control mice reproduce the anxiety-related phenotypes. These findings suggest that increased 5-HT signaling during P2-P11 alters adult mPFC function to increase anxiety and impair fear extinction, and imply a differential role for IL and PL neurons in regulating affective behaviors. Together, our results support a developmental mechanism for the etiology and pathophysiology of affective disorders and fear-related behaviors. PMID:25209278

Rebello, Tahilia J; Yu, Qinghui; Goodfellow, Nathalie M; Caffrey Cagliostro, Martha K; Teissier, Anne; Morelli, Emanuela; Demireva, Elena Y; Chemiakine, Alexei; Rosoklija, Gorazd B; Dwork, Andrew J; Lambe, Evelyn K; Gingrich, Jay A; Ansorge, Mark S

2014-09-10

67

A HIGHLY INCLINED ORBIT FOR THE 110 DAY PERIOD M-DWARF COMPANION KOI-368.01  

SciTech Connect

We report the detection of asymmetry in the transit light curves of the 110 day period companion to KOI-368, a rapidly rotating A-dwarf. The significant distortion in the transit light curve is attributed to spin-orbit misalignment between the transiting companion and the gravity darkened host star. Our analysis was based on 11 long cadence and 2 short cadence transits of KOI-368.01 from the Kepler mission, as well as stellar parameters determined from our follow-up spectroscopic observation. We measured the true obliquity between the orbit normal and the stellar rotation axis to be 69{sub -10}{sup +9o}. We also find a secondary eclipse event with depth 29 ± 3 ppm at phase 0.59, from which the temperature of the companion is constrained to 3060 ± 50 K, indicating that KOI-368.01 is a late M-dwarf. The eccentricity is also calculated from the eclipse to be 0.1429 ± 0.0007. The long period, high obliquity, and low eccentricity of KOI-368.01 allow us to limit a number of proposed theories for the misalignment of binary systems.

Zhou, George [Research School of Astronomy and Astrophysics, Australian National University, Cotter Road, Weston Creek, ACT 2611 (Australia)] [Research School of Astronomy and Astrophysics, Australian National University, Cotter Road, Weston Creek, ACT 2611 (Australia); Huang, Chelsea X., E-mail: george@mso.anu.edu.au [Department of Astrophysical Sciences, 4 Ivy Lane, Peyton Hall, Princeton University, Princeton, NJ 08544 (United States)

2013-10-20

68

Periodization  

PubMed Central

Background: Clinicians are constantly faced with the challenge of designing training programs for injured and noninjured athletes that maximize healing and optimize performance. Periodization is a concept of systematic progression—that is, resistance training programs that follow predictable patterns of change in training variables. The strength training literature is abundant with studies comparing periodization schemes on uninjured, trained, and untrained athletes. The rehabilitation literature, however, is scarce with information about how to optimally design resistance training programs based on periodization principles for injured athletes. The purpose of this review is to discuss relevant training variables and methods of periodization, as well as periodization program outcomes. A secondary purpose is to provide an anecdotal framework regarding implementation of periodization principles into rehabilitation programs. Evidence Acquisition: A Medline search from 1979 to 2009 was implemented with the keywords periodization, strength training, rehabilitation, endurance, power, hypertrophy, and resistance training with the Boolean term AND in all possible combinations in the English language. Each author also undertook independent hand searching of article references used in this review. Results: Based on the studies researched, periodized strength training regimens demonstrate improved outcomes as compared to nonperiodized programs. Conclusions: Despite the evidence in the strength training literature supporting periodization programs, there is a considerable lack of data in the rehabilitation literature about program design and successful implementation of periodization into rehabilitation programs. PMID:23015982

Lorenz, Daniel S.; Reiman, Michael P.; Walker, John C.

2010-01-01

69

The class and cultural functions of obesity discourse: our latter day child saving movement  

Microsoft Academic Search

This paper examines the inexorable rise of ‘health’ as regulative discourse, highlighting its class and cultural dimensions. With reference to the policy content of recent obesity reports, analysis suggests that contemporary concerns around obesity are but a modern variant of earlier eighteenth and nineteenth century child saving crusades whose primary concerns were the regulation of deviant populations among women and

John Evans; Brian Davies; Emma Rich

2008-01-01

70

Microbiological Profile of Goat Meat Inoculated with Lactic Acid Bacteria Cultures and Stored at 30°C for 7 days  

Microsoft Academic Search

The ability of lactic acid bacteria (LAB) cultures to preserve goat meat at 30°C was evaluated in the present study. Strains\\u000a of Pediococcus pentosaceus GOAT 01 and Lactobacillus plantarum GOAT 012, individually and in combination, were applied as starters on sliced meat samples at 6 log cfu\\/g and stored for\\u000a 7 days at 30°C to simulate ambient temperature in Nigeria. They

Olusegun A. Olaoye; Abiodun A. Onilude; Oyeyemi A. Idowu

2011-01-01

71

An orbital period of 0.94 days for the hot-Jupiter planet WASP-18b.  

PubMed

The 'hot Jupiters' that abound in lists of known extrasolar planets are thought to have formed far from their host stars, but migrate inwards through interactions with the proto-planetary disk from which they were born, or by an alternative mechanism such as planet-planet scattering. The hot Jupiters closest to their parent stars, at orbital distances of only approximately 0.02 astronomical units, have strong tidal interactions, and systems such as OGLE-TR-56 have been suggested as tests of tidal dissipation theory. Here we report the discovery of planet WASP-18b with an orbital period of 0.94 days and a mass of ten Jupiter masses (10 M(Jup)), resulting in a tidal interaction an order of magnitude stronger than that of planet OGLE-TR-56b. Under the assumption that the tidal-dissipation parameter Q of the host star is of the order of 10(6), as measured for Solar System bodies and binary stars and as often applied to extrasolar planets, WASP-18b will be spiralling inwards on a timescale less than a thousandth that of the lifetime of its host star. Therefore either WASP-18 is in a rare, exceptionally short-lived state, or the tidal dissipation in this system (and possibly other hot-Jupiter systems) must be much weaker than in the Solar System. PMID:19713926

Hellier, Coel; Anderson, D R; Cameron, A Collier; Gillon, M; Hebb, L; Maxted, P F L; Queloz, D; Smalley, B; Triaud, A H M J; West, R G; Wilson, D M; Bentley, S J; Enoch, B; Horne, K; Irwin, J; Lister, T A; Mayor, M; Parley, N; Pepe, F; Pollacco, D L; Segransan, D; Udry, S; Wheatley, P J

2009-08-27

72

Age-period-cohort modelling of alcohol volume and heavy drinking days in the US National Alcohol Surveys: divergence in younger and older adult trends  

Microsoft Academic Search

Aims The decomposition of trends in alcohol volume and heavy drinking days into age, period, cohort and demo- graphic effects offers an important perspective on the dynamics of change in alcohol use patterns in the United States. Design The present study utilizes data from six National Alcohol Surveys conducted over the 26-year period between 1979 and 2005. Setting United States.

William C. Kerr; Thomas K. Greenfield; Jason Bond; Yu Ye; Jürgen Rehm

2009-01-01

73

75 FR 1656 - Draft Safety Culture Policy Statement: Request for Public Comments; Extension of Comment Period  

Federal Register 2010, 2011, 2012, 2013

...to the development of the safety culture policy statement, including: (1) development of a common safety culture definition; and (2) development of high-level...traits of areas important to safety culture. Based on comments from...

2010-01-12

74

Robust circadian rhythms in organoid cultures from PERIOD2::LUCIFERASE mouse small intestine  

PubMed Central

Disruption of circadian rhythms is a risk factor for several human gastrointestinal (GI) diseases, ranging from diarrhea to ulcers to cancer. Four-dimensional tissue culture models that faithfully mimic the circadian clock of the GI epithelium would provide an invaluable tool to understand circadian regulation of GI health and disease. We hypothesized that rhythmicity of a key circadian component, PERIOD2 (PER2), would diminish along a continuum from ex vivo intestinal organoids (epithelial ‘miniguts’), nontransformed mouse small intestinal epithelial (MSIE) cells and transformed human colorectal adenocarcinoma (Caco-2) cells. Here, we show that bioluminescent jejunal explants from PERIOD2::LUCIFERASE (PER2::LUC) mice displayed robust circadian rhythms for >72 hours post-excision. Circadian rhythms in primary or passaged PER2::LUC jejunal organoids were similarly robust; they also synchronized upon serum shock and persisted beyond 2 weeks in culture. Remarkably, unshocked organoids autonomously synchronized rhythms within 12 hours of recording. The onset of this autonomous synchronization was slowed by >2 hours in the presence of the glucocorticoid receptor antagonist RU486 (20 ?M). Doubling standard concentrations of the organoid growth factors EGF, Noggin and R-spondin enhanced PER2 oscillations, whereas subtraction of these factors individually at 24 hours following serum shock produced no detectable effects on PER2 oscillations. Growth factor pulses induced modest phase delays in unshocked, but not serum-shocked, organoids. Circadian oscillations of PER2::LUC bioluminescence aligned with Per2 mRNA expression upon analysis using quantitative PCR. Concordant findings of robust circadian rhythms in bioluminescent jejunal explants and organoids provide further evidence for a peripheral clock that is intrinsic to the intestinal epithelium. The rhythmic and organotypic features of organoids should offer unprecedented advantages as a resource for elucidating the role of circadian rhythms in GI stem cell dynamics, epithelial homeostasis and disease. PMID:24997189

Moore, Sean R.; Pruszka, Jill; Vallance, Jefferson; Aihara, Eitaro; Matsuura, Toru; Montrose, Marshall H.; Shroyer, Noah F.; Hong, Christian I.

2014-01-01

75

CAN THE 62 DAY X-RAY PERIOD OF ULX M82 X-1 BE DUE TO A PRECESSING ACCRETION DISK?  

SciTech Connect

We have analyzed all archival Rossi X-Ray Timing Explorer/Proportional Counter Array monitoring observations of the ultraluminous X-ray source M82 X-1 in order to study the properties of its 62 day X-ray period, which was found by Kaaret and Feng in 2007. Based on its high coherence, it has been argued that the observed period is the orbital period of the binary. Utilizing a much longer data set than in previous studies, we find the following. (1) The phase-resolved X-ray (3-15 keV) spectra-modeled with a thermal accretion disk and a power law-suggest that the accretion disk's contribution to the total flux is strongly modulated with phase. (2) Suggestive evidence for a sudden phase shift of approximately 0.4 in phase (25 days) between the first and the second halves of the light curve separated by roughly 1000 days. If confirmed, the implied timescale to change the period is {approx}10 yr, which is exceptionally fast for an orbital phenomenon. These two independent pieces of evidence are consistent with the periodicity being due to a precessing accretion disk, similar to the super-orbital periods observed in systems like Her X-1, LMC X-4, and SS433. However, the timing evidence for a change in the period needs to be confirmed with additional observations. This should be possible with further monitoring of M82 with instruments such as the Swift X-Ray Telescope.

Pasham, Dheeraj R. [Astronomy Department, University of Maryland, College Park, MD 20742 (United States); Strohmayer, Tod E., E-mail: dheeraj@astro.umd.edu, E-mail: tod.strohmayer@nasa.gov [Astrophysics Science Division, NASA's Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2013-09-10

76

African Easterly Waves in 30-day High-Resolution Global Simulations: A Case Study During the 2006 NAMMA Period  

NASA Technical Reports Server (NTRS)

In this study, extended -range (30 -day) high-resolution simulations with the NASA global mesoscale model are conducted to simulate the initiation and propagation of six consecutive African easterly waves (AEWs) from late August to September 2006 and their association with hurricane formation. It is shown that the statistical characteristics of individual AEWs are realistically simulated with larger errors in the 5th and 6th AEWs. Remarkable simulations of a mean African easterly jet (AEJ) are also obtained. Nine additional 30 -day experiments suggest that although land surface processes might contribute to the predictability of the AEJ and AEWs, the initiation and detailed evolution of AEWs still depend on the accurate representation of dynamic and land surface initial conditions and their time -varying nonlinear interactions. Of interest is the potential to extend the lead time for predicting hurricane formation (e.g., a lead time of up to 22 days) as the 4th AEW is realistically simulated.

Shen, Bo-Wen; Tao, Wei-Kuo; Wu, Man-Li C.

2010-01-01

77

Evaluation of a microbiological screening and acceptance procedure for cryopreserved skin allografts based on 14 day cultures.  

PubMed

Viable donor skin is still considered the gold standard for the temporary covering of burns. Since 1985, the Brussels military skin bank supplies cryopreserved viable cadaveric skin for therapeutic use. Unfortunately, viable skin can not be sterilised, which increases the risk of disease transmission. On the other hand, every effort should be made to ensure that the largest possible part of the donated skin is processed into high-performance grafts. Cryopreserved skin allografts that fail bacterial or fungal screening are reworked into 'sterile' non-viable glycerolised skin allografts. The transposition of the European Human Cell and Tissue Directives into Belgian Law has prompted us to install a pragmatic microbiological screening and acceptance procedure, which is based on 14 day enrichment broth cultures of finished product samples and treats the complex issues of 'acceptable bioburden' and 'absence of objectionable organisms'. In this paper we evaluate this procedure applied on 148 skin donations. An incubation time of 14 days allowed for the detection of an additional 16.9% (25/148) of contaminated skin compared to our classic 3 day incubation protocol and consequently increased the share of non-viable glycerolised skin with 8.4%. Importantly, 24% of these slow-growing microorganisms were considered to be potentially pathogenic. In addition, we raise the issue of 'representative sampling' of heterogeneously contaminated skin. In summary, we feel that our present microbiological testing and acceptance procedure assures adequate patient safety and skin availability. The question remains, however, whether the supposed increased safety of our skin grafts outweighs the reduced overall clinical performance and the increase in work load and costs. PMID:21505962

Pirnay, Jean-Paul; Verween, Gunther; Pascual, Bruno; Verbeken, Gilbert; De Corte, Peter; Rose, Thomas; Jennes, Serge; Vanderkelen, Alain; Marichal, Miriam; Heuninckx, Walter; De Vos, Daniel

2012-06-01

78

Routine Incubation of BacT/ALERT FA and FN Blood Culture Bottles for More than 3 Days May Not Be Necessary  

PubMed Central

We reviewed time to detection for 35,500 blood cultures collected in BacT/ALERT FA and FN bottles. In the first 3 days of incubation, 97.5% of the 2,609 clinically significant isolates were detected, suggesting that routine incubation for more than 3 days may not be necessary for FA and FN bottles. PMID:15872297

Bourbeau, Paul P.; Foltzer, Michael

2005-01-01

79

Investigation of near-infrared spectroscopy for periodic in situ cell culture media determination of glucose and lactate  

E-print Network

the 2.0-2.5 []m combination region. A system was developed using a Fourier Transform Infrared (FHR) spectrometer to characterize glucose and lactate single beam spectra collected from cell culture media. Spectra recorded from a three-day fibroblast...

Lewis, Christopher Bryan

2012-06-07

80

Block training periodization in alpine skiing: effects of 11-day HIT on V O 2max and performance  

Microsoft Academic Search

Attempting to achieve the high diversity of training goals in modern competitive alpine skiing simultaneously can be difficult\\u000a and may lead to compromised overall adaptation. Therefore, we investigated the effect of block training periodization on maximal\\u000a oxygen consumption (VO2max) and parameters of exercise performance in elite junior alpine skiers. Six female and 15 male athletes were assigned to high-intensity\\u000a interval

Fabio A. Breil; Simone N. Weber; Stefan Koller; Hans Hoppeler; Michael Vogt

2010-01-01

81

Cultural Democracy in a Period of Cultural Expansion: The Social Composition of Arts Audiences in the United States.  

ERIC Educational Resources Information Center

Visitors to museums and audiences of live performing arts tend to be better educated, of higher occupational standing, and more affluent than the general populace. Recent trends indicate that expansion in the scale of arts activities and government subsidies has not been accompanied by a democratization of cultural consumption. (Author/EB)

Dimaggio, Paul; Useem, Michael

1978-01-01

82

Continuous Influenza Virus Production in Cell Culture Shows a Periodic Accumulation of Defective Interfering Particles  

PubMed Central

Influenza viruses are a major public health burden during seasonal epidemics and a continuous threat due to their potential to cause pandemics. Annual vaccination provides the best protection against the contagious respiratory illness caused by influenza viruses. However, the current production capacities for influenza vaccines are insufficient to meet the increasing demands. We explored the possibility to establish a continuous production process for influenza viruses using the duck-derived suspension cell line AGE1.CR. A two-stage bioreactor setup was designed in which cells were cultivated in a first stirred tank reactor where an almost constant cell concentration was maintained. Cells were then constantly fed to a second bioreactor where virus infection and replication took place. Using this two-stage reactor system, it was possible to continuously produce influenza viruses. Surprisingly, virus titers showed a periodic increase and decrease during the run-time of 17 days. These titer fluctuations were caused by the presence of defective interfering particles (DIPs), which we detected by PCR. Mathematical modeling confirmed this observation showing that constant virus titers can only emerge in the absence of DIPs. Even with very low amounts of DIPs in the seed virus and very low rates for de novo DIP generation, defective viruses rapidly accumulate and, therefore, represent a serious challenge for continuous vaccine production. Yet, the continuous replication of influenza virus using a two-stage bioreactor setup is a novel tool to study aspects of viral evolution and the impact of DIPs. PMID:24039749

Pflugmacher, Antje; Behrendt, Ilona; Jordan, Ingo; Flockerzi, Dietrich; Genzel, Yvonne; Reichl, Udo

2013-01-01

83

Johannes and the seven dwarfs: Kepler detection of low-level day-timescale periodic photometric variations in white dwarfs  

E-print Network

We make use of the high photometric precision of Kepler to search for periodic variations among 14 normal (DA- and DB-type, likely non-magnetic) hot white dwarfs (WDs) observed by the mission. In seven of the WDs, we detect periodic, ~2 hr to 10 d, variations, with semi-amplitudes of 40 to 2000 ppm, lower than ever seen in WDs. We consider various explanations for the observed variations: WD rotation combined with magnetic cool spots; rotation combined with magnetic dichroism; rotation combined with hot spots from an interstellar-medium accretion flow, channeled onto weak magnetic poles; transits by size ~50-200 km objects; relativistic beaming due to reflex motion caused by a cool companion WD; or reflection/re-radiation of the primary WD light by a brown-dwarf companion, or by a giant planet of about Jupiter radius, undergoing illumination phases as it orbits the WD. Each of these mechanisms could be behind some of the variable WDs, but could not be responsible for all seven variable cases. Alternatively, t...

Maoz, Dan; McQuillan, Amy

2014-01-01

84

SWIFT OBSERVATIONS OF THE HIGH-MASS X-RAY BINARY IGR J16283-4838 UNVEIL A 288 DAY ORBITAL PERIOD  

SciTech Connect

We report on the temporal and spectral properties of the high-mass X-ray binary IGR J16283-4838 in the hard X-ray band. We searched the first 88 months of Swift Burst Alert Telescope (BAT) survey data for long-term periodic modulations. We also investigated the broad band (0.2-150 keV) spectral properties of IGR J16283-4838 complementing the BAT dataset with soft X-ray data from the available Swift-XRT pointed observations. The BAT light curve of IGR J16283-4838 revealed a periodic modulation at P{sub o} = 287.6 ± 1.7 days (with a significance higher than 4 standard deviations). The profile of the light curve folded at P{sub o} shows a sharp peak lasting ?12 days over a flat plateau. The long-term light curve also shows a ?300 day interval of prolonged enhanced emission. The observed phenomenology suggests that IGR J16283-4838 has a Be nature, where the narrow periodic peaks and the ?300 day outburst can be interpreted as Type I and Type II outbursts, respectively. The broad band 0.2-150 keV spectrum can be described with an absorbed power-law and a steepening in the BAT energy range.

Cusumano, G.; Segreto, A.; La Parola, V. [INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, Via U. La Malfa 153, I-90146, Palermo (Italy)] [INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, Via U. La Malfa 153, I-90146, Palermo (Italy); D'Aì, A. [Dipartimento di Fisica, Università di Palermo, via Archirafi 36, I-90123, Palermo (Italy)] [Dipartimento di Fisica, Università di Palermo, via Archirafi 36, I-90123, Palermo (Italy); Masetti, N. [INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, via Gobetti 101, I-40129, Bologna (Italy)] [INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, via Gobetti 101, I-40129, Bologna (Italy); Tagliaferri, G., E-mail: cusumano@ifc.inaf.it [INAF-Brera Astronomical Observatory, via Bianchi 46, I-23807, Merate (Italy)

2013-09-20

85

Morbidity and mortality in the thirty-day period following total hip arthroplasty: risk factors and incidence.  

PubMed

The study sought to ascertain the incidence rates and risk factors for 30-day post-operative complications after primary total hip arthroplasty (THA). Complications were categorized as systemic or local and subcategorized as major or minor. There were 17,640 individuals who received primary THA identified from the 2006-2011 ACS NSQIP. The mortality rate was 0.35% and complications occurred in 4.9%. Age groups ? 80 years (P <0.001) and 70-79 years old (P = 0.003), and renal insufficiency (P = 0.02) best predicted mortality. Age ?80 years (P <0.001) and cardiac disease (P = 0.01) were the strongest predictors of developing any postoperative complication. Morbid obesity (P <0.001) and operative time > 141 minutes (P <0.001) were strongly associated with the development of major local complications. PMID:24973000

Belmont, Philip J; Goodman, Gens P; Hamilton, William; Waterman, Brian R; Bader, Julia O; Schoenfeld, Andrew J

2014-10-01

86

The influence of culture method and culture period on quality of half-pearls (‘mabé’) from the winged pearl oyster Pteria sterna, Gould, 1851  

Microsoft Academic Search

Two groups of 96 winged pearl oysters, Pteria sterna, with mean (±S.D.) dorso-ventral shell height (DVM) of 75.0±6.0 mm, were used to evaluate the effect of two culture methods (pocket nets and plastic cages) on the quality of half-pearls (mabé) produced from them over a period of 9 months. Prior to implantation, oysters were anaesthetized using benzocaine and two plastic

Hugo Ruiz-Rubio; Héctor Acosta-Salmón; Alex Olivera; Paul C. Southgate; Carlos Rangel-Dávalos

2006-01-01

87

One-Day Thyroid Surgery: Retrospective Analysis of Safety and Patient Satisfaction on a Consecutive Series of 1,571 Cases over a Three-Year Period  

Microsoft Academic Search

Short-stay thyroid surgery (<24 h hospital stay) is becoming increasingly popular but some potentially lethal complications are considered strong arguments against shortening hospitalization after thyroidectomy. The authors reviewed the data of 1,571 patients undergoing one-day thyroid surgery over a 3-year period to determine safety and patient satisfaction. There were 1,244 females and 327 males. Mean age was 43 years. Patient

G. Materazzi; G. Dionigi; P. Berti; R. Rago; G. Frustaci; G. Docimo; M. Puccini; P. Miccoli

2007-01-01

88

HAT-P-24b: An Inflated Hot Jupiter on a 3.36 Day Period Transiting a Hot, Metal-poor Star  

Microsoft Academic Search

We report the discovery of HAT-P-24b, a transiting extrasolar planet orbiting the moderately bright V = 11.818 F8 dwarf star GSC 0774-01441, with a period P = 3.3552464 ± 0.0000071 days, transit epoch Tc = 2455216.97669 ± 0.00024 (BJD)11, and transit duration 3.653 ± 0.025 hr. The host star has a mass of 1.191 ± 0.042 M sun, radius of

D. M. Kipping; G. Á. Bakos; J. Hartman; G. Torres; A. Shporer; D. W. Latham; Géza Kovács; R. W. Noyes; A. W. Howard; D. A. Fischer; J. A. Johnson; G. W. Marcy; B. Béky; G. Perumpilly; G. A. Esquerdo; D. D. Sasselov; R. P. Stefanik; J. Lázár; I. Papp; P. Sári

2010-01-01

89

"Nothing Special, Everything Is Maamuli": Socio-Cultural and Family Practices Influencing the Perinatal Period in Urban India  

PubMed Central

Background Globally, India contributes the largest share in sheer numbers to the burden of maternal and infant under-nutrition, morbidity and mortality. A major gap in our knowledge is how socio-cultural practices and beliefs influence the perinatal period and thus perinatal outcomes, particularly in the rapidly growing urban setting. Methods and Findings Using data from a qualitative study in urban south India, including in-depth interviews with 36 women who had recently been through childbirth as well as observations of family life and clinic encounters, we explored the territory of familial, cultural and traditional practices and beliefs influencing women and their families through pregnancy, childbirth and infancy. We found that while there were some similarities in cultural practices to those described before in studies from low resource village settings, there are changing practices and ideas. Fertility concerns dominate women’s experience of married life; notions of gender preference and ideal family size are changing rapidly in response to the urban context; however inter-generational family pressures are still considerable. While a rich repertoire of cultural practices persists throughout the perinatal continuum, their existence is normalised and even underplayed. In terms of diet and nutrition, traditional messages including notions of ‘hot’ and ‘cold’ foods, are stronger than health messages; however breastfeeding is the cultural norm and the practice of delayed breastfeeding appears to be disappearing in this urban setting. Marriage, pregnancy and childbirth are so much part of the norm for women, that there is little expectation of individual choice in any of these major life events. Conclusions A greater understanding is needed of the dynamic factors shaping the perinatal period in urban India, including an acknowledgment of the health promoting as well as potentially harmful cultural practices and the critical role of the family. This will help plan culturally appropriate integrated perinatal health care. PMID:25369447

Raman, Shanti; Srinivasan, Krishnamachari; Kurpad, Anura; Razee, Husna; Ritchie, Jan

2014-01-01

90

Natural Variation in the Drosophila melanogaster Clock Gene Period Modulates Splicing of Its 3?-Terminal Intron and Mid-Day Siesta  

PubMed Central

Drosophila melanogaster exhibits circadian (?24 hr) regulated morning and evening bouts of activity that are separated by a mid-day siesta. Increases in daily ambient temperature are accompanied by a progressively longer mid-day siesta and delayed evening activity. Presumably, this behavioral plasticity reflects an adaptive response that endows D. melanogaster with the ability to temporally optimize daily activity levels over a wide range of physiologically relevant temperatures. For example, the shift in activity towards the cooler nighttime hours on hot days might minimize the risks associated with exposure to mid-day heat, whereas on cold days activity is favored during the warmer daytime hours. These temperature-induced shifts in the distribution of daily activity are partly based on the thermal sensitive splicing of an intron found in the 3? untranslated region (UTR) of the circadian clock gene termed period (per). As temperature decreases, splicing of this 3?-terminal intron (termed dmpi8) is gradually increased, which is causally linked to a shorter mid-day siesta. Herein we identify several natural polymorphisms in the per 3? UTR from wild-caught populations of flies originating along the east coast of the United States. Two non-intronic closely spaced single nucleotide polymorphisms (SNPs) modulate dmpi8 splicing efficiency, with the least efficiently spliced version associated with a longer mid-day siesta, especially at lower temperatures. Although these SNPs modulate the splicing efficiency of dmpi8 they have little to no effect on its thermal responsiveness, consistent with the notion that the suboptimal 5? and 3? splice sites of the dmpi8 intron are the primary cis-acting elements mediating temperature regulation. Our results demonstrate that natural variations in the per gene can modulate the splicing efficiency of the dmpi8 intron and the daily distribution of activity, providing natural examples for the involvement of dmpi8 splicing in the thermal adaptation of behavioral programs in D. melanogaster. PMID:23152918

Low, Kwang Huei; Chen, Wen-Feng; Yildirim, Evrim; Edery, Isaac

2012-01-01

91

Cultural Identities of Adolescent Immigrants: A Three-Year Longitudinal Study Including the Pre-Migration Period  

Microsoft Academic Search

This article investigates the cultural identities of adolescent immigrants in the pre-migration period and during the first\\u000a 3 years after immigration. The target population consists of high-school Jewish adolescents from Russia and Ukraine participating\\u000a in an Israeli immigration program. In this program, Jewish adolescents immigrate to Israel without their parents, live in\\u000a kibbutzim and boarding schools, and study in Israeli schools.

Eugene Tartakovsky

2009-01-01

92

Heritage Film Audiences 2.0: Period Film Audiences and Online Fan Cultures  

Microsoft Academic Search

In an update to my monograph Heritage Film Audiences: Period Films and Contemporary Audiences in the UK (Edinburgh University Press, 2011), this paper explores currently evolving forms of online audience behaviour and participatory fan activity around contemporary period films. Its detailed focus is on the online reception, (re-)appropriation and remixing of key films originally released in the 1980s to 1990s

Claire Monk

2011-01-01

93

Determination of enrofloxacin stability and in vitro efficacy against Staphylococcus pseudintermedius and Pseudomonas aeruginosa in four ear cleaner solutions over a 28 day period.  

PubMed

Chemical stability and in vitro bactericidal efficacy of 0.9% enrofloxacin-compounded solutions were evaluated following storage at room temperature for 28 days. Chemical stability of enrofloxacin was determined by high-performance liquid chromatography (HPLC) in five compounded solutions, including sterile water. Bactericidal efficacy was determined by spiral plating serial 10-fold dilutions of bacteria and solutions followed by colony counts. Tris-EDTA [TrizEDTA(®) (TE)], Tris-EDTA and 0.15% chlorhexidine [TrizChlor(®) (TC)], 2.5% lactic acid, 0.1% salicylic acid and 0.1% parachlorometaxylenol [Epi-Otic (EO)], and 0.1% free salicylic acid, 0.1% parachlorometaxylenol and 0.5% EDTA [Epi-Otic Advanced (EA)] were used. High-performance liquid chromatography was carried out with one-step liquid/liquid extraction to detect and quantify enrofloxacin stability. Mean recoveries for compounded samples run in triplicate at 28 days were 97.7% (TE), 99.9% (TC), 98.1% (EO) and 97.8% (EA). Kruskal-Wallis analysis showed no significant difference in the percentage recovery (H=0.0539, df=3, P=0.9967). American Type Culture Collection strains of Staphylococcus pseudintermedius and Pseudomonas aeruginosa were used to evaluate in vitro efficacy following 30 min incubation on days 0, 14 and 28. Consistent in vitro bactericidal efficacy of all compounded solutions, indicated by killing >2.3×10(7) colony-forming units/mL, was seen; however, bactericidal efficacy decreased for compounded TC on day 14. Pseudomonas aeruginosa was more sensitive to the ear cleaners and enrofloxacin than S. pseudintermedius. The HPLC and in vitro data suggest that 0.9% enrofloxacin compounded with sterile water, TE, EO and EA maintains chemical stability and bactericidal efficacy for 28 days. PMID:21777310

Metry, Catherine A; Maddox, Carol W; Dirikolu, Levent; Johnson, Yvette J; Campbell, Karen L

2012-02-01

94

A 62 Day X-Ray Periodicity and an X-Ray Flare from the Ultraluminous X-Ray Source in M82  

E-print Network

In 240 days of X-ray monitoring of M82, we have discovered an X-ray periodicity at $62.0 \\pm 2.5$ days with a peak to peak amplitude corresponding to an isotropic luminosity of $2.4 \\times 10^{40} \\rm erg s^{-1}$ in M82 and an X-ray flare reaching a peak luminosity of $9.8 \\times 10^{40} \\rm erg s^{-1}$. The periodicity and flare likely originate from the ultraluminous X-ray source (ULX) in M82 which has been identified as a possible intermediate mass black hole. We suggest that the 62~day modulation is due to orbital motion within an X-ray binary with a Roche-lobe overflowing companion star which would imply that the average density of the companion star is near $5 \\times 10^{-5} \\rm g cm^{-3}$ and is therefore a giant or supergiant. Chandra observations just after the flare show an energy spectrum that is consistent with a power-law with no evidence of a thermal component or line emission. Radio observations made with the VLA during the flare allow us to rule out a blazar identification for the source and p...

Kaaret, Philip; Simet, M G; Kaaret, Philip; Lang, Cornelia C.; Simet, Melanie G.

2006-01-01

95

High energy X-ray observations of CYG X-3 from from OSO-8: Further evidence of a 34.1 day period  

NASA Technical Reports Server (NTRS)

The X-ray source Cyg X-3 (=4U2030+40) was observed with the high energy X-ray spectrometer on OSO-8 for two weeks in 1975 and in 1976 and for one week in 1977. No change in spectral shape and intensity above 23 keV was observed from year to year. No correlation is observed between the source's intensity and the phase of the 34.1 day period discovered by Molteni, et al. (1980). The pulsed fraction of the 4.8 hour light curve between 23 and 73 keV varies from week to week, however, and the magnitude of the pulsed fraction appears to be correlated with the 34.1 day phase. No immediate explanation of this behavior is apparent in terms of previously proposed models of the source.

Dolan, J. F.; Crannell, C. J.; Dennis, B. R.; Frost, K. J.; Orwig, L. E.

1981-01-01

96

Culture of the Entire Mouse To Determine whether Cultivable Borrelia burgdorferi Persists in Infected Mice Treated with a Five-Day Course of Ceftriaxone.  

PubMed

Although controversial, it has been suggested that antibiotic treatment of laboratory animals infected with Borrelia burgdorferi often leads to the persistence of residual spirochetes that are claimed to be viable but noncultivable. If viable cells of B. burgdorferi do persist following antibiotic therapy, one possible explanation for the lack of cultivability is that too few organisms persist in any given tissue site that might be sampled and cultured. In this study, we treated SKH (hairless) mice, with B. burgdorferi infection of 3 months' duration, with either ceftriaxone or saline for 5 days and then cultured a suspension extract of nearly the entire mouse using a combined in vivo/in vitro culture method. All of the saline-treated (control) mice were culture positive, compared with none of the antibiotic-treated mice. Our findings further document the effectiveness of antibiotic therapy in eradicating cultivable cells of B. burgdorferi, irrespective of tissue or organ site. PMID:25155590

Pavia, Charles S; Wormser, Gary P

2014-11-01

97

Sexually active bucks are able to stimulate three successive groups of females per day with a 4-hour period of contact.  

PubMed

Bucks rendered sexually active by a photoperiod treatment of long days can induce fertile ovulation in a group of goats with only 4 h of contact daily with a male:female ratio of 1:10. Here we tested whether such bucks could induce fertile ovulations when stimulating successively three different groups of anovulatory goats when interacting 4 h per day during 15 consecutive days. Control males (n=3) were introduced in the control group (n=25) of does at 8:00 h and were removed at 12:00 h. Experimental males (n=3) were in contact with the experimental groups of does: from 8:00 h to 12:00 h with a first group (n=27), from 12:00 h to 16:00 h with a second group (n=26) and with a third one (n=27) from 16:00 h to 20:00 h. Bucks were then placed until next day in another pen. Both in the control and the experimental groups, more than 85% of females ovulated, and the proportions did not differ between the control and experimental groups (P?0.67) or between the three experimental groups (P?0.67). Moreover, the ovulation rate did not differ significantly between the control and the experimental females nor between the three experimental groups. Bucks were able to fertilize more than 72% of does independently of the number of females they were exposed to (P?0.17). Finally, more than 58% of females kidded and fertility did not differ between the control and experimental groups (P=1) nor among experimental groups (P?0.77). We conclude that sexually active bucks are able to induce fertile ovulation in three successive groups of anovulatory goats even when the period of contact between sexes is reduced to 4 h per day. PMID:22366159

Bedos, M; Velázquez, H; Fitz-Rodríguez, G; Flores, J A; Hernández, H; Duarte, G; Vielma, J; Fernández, I G; Retana-Márquez, M S; Muñoz-Gutiérrez, M; Keller, M; Delgadillo, J A

2012-05-15

98

An Analysis of the Multi-Cultural Awareness Shown in Popular American Children's Periodicals.  

ERIC Educational Resources Information Center

Designed to provide guidance to elementary or middle school library media specialists in the selection of periodicals that will support a school's multicultural goals and objectives, this study developed a checklist and used it to analyze the treatment given to children and adults of various racial and ethnic groups in 15 of the most popular…

Markes, Mary J.

99

A 62 Day X-Ray Periodicity and an X-Ray Flare from the Ultraluminous X-Ray Source in M82  

E-print Network

In 240 days of X-ray monitoring of M82, we have discovered an X-ray periodicity at $62.0 \\pm 2.5$ days with a peak to peak amplitude corresponding to an isotropic luminosity of $2.4 \\times 10^{40} \\rm erg s^{-1}$ in M82 and an X-ray flare reaching a peak luminosity of $9.8 \\times 10^{40} \\rm erg s^{-1}$. The periodicity and flare likely originate from the ultraluminous X-ray source (ULX) in M82 which has been identified as a possible intermediate mass black hole. We suggest that the 62~day modulation is due to orbital motion within an X-ray binary with a Roche-lobe overflowing companion star which would imply that the average density of the companion star is near $5 \\times 10^{-5} \\rm g cm^{-3}$ and is therefore a giant or supergiant. Chandra observations just after the flare show an energy spectrum that is consistent with a power-law with no evidence of a thermal component or line emission. Radio observations made with the VLA during the flare allow us to rule out a blazar identification for the source and place strong constraints on relativistically beamed models of the X-ray emission. The Chandra observations reveal a second X-ray source reached a flux of $4.4 \\times 10^{-12} \\rm erg cm^{-2} s^{-1}$ in the 0.3-7 keV band which is dramatically higher than any flux previously seen from this source and corresponds to an isotropic luminosity of $1.1 \\times 10^{40} \\rm erg s^{-1}$. This source is a second ultraluminous X-ray source in M82 and may give rise to the QPOs detected from the central region of M82.

Philip Kaaret; Melanie G. Simet; Cornelia C. Lang

2006-04-03

100

A Time-to-Event Pharmacodynamic Model Describing Treatment Response in Patients with Pulmonary Tuberculosis Using Days to Positivity in Automated Liquid Mycobacterial Culture  

PubMed Central

Days to positivity in automated liquid mycobacterial culture have been shown to correlate with mycobacterial load and have been proposed as a useful biomarker for treatment responses in tuberculosis. However, there is currently no quantitative method or model to analyze the change in days to positivity with time on treatment. The objectives of this study were to describe the decline in numbers of mycobacteria in sputum collected once weekly for 8 weeks from patients on treatment for tuberculosis using days to positivity in liquid culture. One hundred forty-four patients with smear-positive pulmonary tuberculosis were recruited from a tuberculosis clinic in Cape Town, South Africa. A nonlinear mixed-effects repeated-time-to-event modeling approach was used to analyze the time-to-positivity data. A biexponential model described the decline in the estimated number of bacteria in patients' sputum samples, while a logistic model with a lag time described the growth of the bacteria in liquid culture. At baseline, the estimated number of rapidly killed bacteria is typically 41 times higher than that of those that are killed slowly. The time to kill half of the rapidly killed bacteria was about 1.8 days, while it was 39 days for slowly killed bacteria. Patients with lung cavitation had higher bacterial loads than patients without lung cavitation. The model successfully described the increase in days to positivity as treatment progressed, differentiating between bacteria that are killed rapidly and those that are killed slowly. Our model can be used to analyze similar data from studies testing new drug regimens. PMID:23183433

Chigutsa, Emmanuel; Patel, Kashyap; Denti, Paolo; Visser, Marianne; Maartens, Gary; Kirkpatrick, Carl M. J.; Karlsson, Mats O.

2013-01-01

101

Standard Fusion Protocol 1. Grow myeloma cells few days prior fusion date. Myeloma cells culture should be maintained  

E-print Network

remove mouse spleen, place into sterile 100-mm cell culture plate containing 10 ml of sterile serum free DMEM/F12. Holding the spleen by sterile forceps perform spleen perfusion with serum free DMEM/F12; 4. Add an appropriate number of myeloma cells to half volume of spleen cells and centrifuge together

102

Meanings, expressions, and experiences of care of chronically mentally ill in a day treatment center using Leininger's culture care theory  

Microsoft Academic Search

The purpose of this qualitative study was to discover the care meanings, expressions, and lived experiences of the chronically mentally ill living in an urban community as a subculture. This study was conceptualized within Leiningers Theory of Culture Care Diversity and Universality with the use of the Sunrise Model to explicate worldview, social structure factors, and historical and environmental context

Tamara Bloom George

1998-01-01

103

Implantation rates after in vitro fertilization and transfer of a maximum of two embryos that have undergone three to five days of culture  

Microsoft Academic Search

Objective: To evaluate implantation and pregnancy rates in patients undergoing IVF after the transfer of a maximum of two embryos that had been cultured for 3–5 days.Design: Prospective study.Setting: An IVF laboratory at a tertiary referral university hospital.Patient(s): One thousand seven hundred eighty-seven couples who underwent their first IVF cycle between January 1995 and December 1997.Intervention(s): In vitro fertilization and

Gerritdina J Huisman; Bart C. J. M Fauser; Marinus J. C Eijkemans; Math H. E. C Pieters

2000-01-01

104

Properties of the short period CoRoT-planet population I: Theoretical planetary mass spectra for a population of stars of 0.8 to 2 solar masses and orbital periods of less then 20 days  

E-print Network

We study the planet populations in the discovery window of the CoRoT-space-telescope scheduled for launch on December 27th. We base the prediction on `first principles' calculations of planet formation in the framework of the planetesimal hypothesis. Aims: To provide a-priori planetary initial mass functions for confrontation with the CoRoT-planet discoveries in the entire range of sensitivity of the CoRoT instrument, i.e. for all giant planets and down to terrestrial planet masses. Methods: We construct a comprehensive set of static complete-equilibrium core-envelope protoplanets with detailed equations of state and opacity and radiative transfer by convection and radiation. Protoplanets are calculated for host-star masses of 0.8 to 2 solar masses and orbital periods of 1 to 16 days. We subsequently check the stability of the planetary population by a series of methods. Results: We find the static planetary populations to be stable and thus a plausible ensemble to predict the planetary IMF for orbital periods in the specified range. Conclusions: We predict bimodal planetary initial mass functions with shapes depending on orbital period. The two main maxima are around a Jupiter mass and about 50 earth masses. We predict an abundant population of Hot Neptunes and a large population of planets that fill the solar-system gap of planetary masses between Neptune and Saturn.

G. Wuchterl; C. Broeg; S. Krause; B. Pecnik; J. Schoenke

2006-12-29

105

Ninety-day waiting period limitation and technical amendments to certain health coverage requirements under the Affordable Care Act. Final rule.  

PubMed

These final regulations implement the 90-day waiting period limitation under section 2708 of the Public Health Service Act, as added by the Patient Protection and Affordable Care Act (Affordable Care Act), as amended, and incorporated into the Employee Retirement Income Security Act of 1974 and the Internal Revenue Code. These regulations also finalize amendments to existing regulations to conform to Affordable Care Act provisions. Specifically, these rules amend regulations implementing existing provisions such as some of the portability provisions added by the Health Insurance Portability and Accountability Act of 1996 (HIPAA) because those provisions of the HIPAA regulations have become superseded or require amendment as a result of the market reform protections added by the Affordable Care Act. PMID:24611209

2014-02-24

106

Typing of Clinical Mycobacterium avium Complex Strains Cultured during a 2-Year Period in Denmark by Using IS1245  

PubMed Central

In the present study restriction fragment length polymorphism analyses with the recently described insertion sequence IS1245 as a probe was performed with clinical Mycobacterium avium complex strains cultured in Denmark during a 2-year period. The overall aim of the study was to disclose potential routes of transmission of these microorganisms. As a first step, the genetic diversity among isolates from AIDS patients and non-human immunodeficiency virus (HIV)-infected patients was described. In addition, a number of isolates from nonhuman sources cultured during the same period were analyzed and compared to the human isolates. A total of 203 isolates from AIDS patients (n = 90), non-HIV-infected patients (n = 91), and nonhuman sources (n = 22) were analyzed. The presence of IS1245 was restricted to Mycobacterium avium subsp. avium isolates. The majority of human isolates had large numbers of IS1245 copies, while nonhuman isolates could be divided into a high-copy-number group and a low-copy-number group. Groups of identical strains were found to be geographically widespread, comprising strains from AIDS patients as well as strains from non-HIV-infected patients. Samples of peat (to be used as potting soil) and veterinary samples were found to contain viable M. avium isolates belonging to genotypes also found in humans. PMID:9986819

Bauer, Jeanett; Andersen, ?se B.; Askgaard, Dorthe; Giese, Sten B.; Larsen, Birger

1999-01-01

107

Mitochondrial DNA in Day 3 embryo culture medium is a novel, non-invasive biomarker of blastocyst potential and implantation outcome.  

PubMed

In assisted reproduction technology, embryo competence is routinely evaluated on morphological criteria. Over the last decade, efforts in improving non-invasive embryo assessment have looked into the secretome of embryos. Human embryos release genomic DNA (gDNA) and mitochondrial DNA (mtDNA) into the culture medium, and the mtDNA/gDNA ratio is significantly correlated with embryo fragmentation. Here, we investigate whether mtDNA/gDNA ratio in embryo spent medium is correlated with blastulation potential and implantation. The mtDNA/gDNA ratio was assessed in 699 Day 3 culture media by quantitative polymerase chain reaction (qPCR) to investigate its correlation with embryo morphology, blastocyst development and implantation. A logistic regression model evaluated whether mtDNA/gDNA ratio in the secretome may improve the prediction of blastulation. We found that embryos that successfully developed into blastocysts exhibited a significantly higher mtDNA/gDNA ratio in the culture medium compared with those that arrest (P = 0.0251), and mtDNA/gDNA, combined with morphological grading, has the potential to predict blastulation better than morphology alone (P = 0.02). Moreover, mtDNA/gDNA ratio was higher in the media from good-quality embryos that reached the full blastocyst stage on Day 5 compared with those that developed more slowly (P < 0.0001). With respect to blastocyst morphology, higher trophectoderm quality was associated with a higher mtDNA/gDNA ratio in the culture medium. Finally, a high mtDNA/gDNA ratio in spent medium was associated with successful implantation outcome (P = 0.0452) of good-quality embryos. In summary, the mtDNA/gDNA ratio in the Day 3 embryo secretome, in combination with morphological grading, may be a novel, non-invasive, early biomarker to improve identification of viable embryos with high developmental potential. PMID:25232043

Stigliani, S; Persico, L; Lagazio, C; Anserini, P; Venturini, P L; Scaruffi, P

2014-12-01

108

Divisional Normals and Standard Deviations of Temperature, Precipitation, and Heating and Cooling Degree Days, 1971-2000 (and previous normals period). Section 4: Cooling Degree Days. Climatography of the United States No. 85.  

National Technical Information Service (NTIS)

This Climatography includes normals and standard deviations for the five 30-year normals periods and the 70-year period between 1931-2000 for each climate division. A climate division represents a region within a state that is as climatically homogeneous ...

2002-01-01

109

Divisional Normals and Standard Deviations of Temperature, Precipitation, and Heating and Cooling Degree Days, 1971-2000 (and previous normals period). Section 3: Heating Degree Days. Climatography of the United States No. 85.  

National Technical Information Service (NTIS)

This Climatography includes normals and standard deviations for the five 30-year normals periods and the 70-year period between 1931-2000 for each climate division. A climate division represents a region within a state that is as climatically homogeneous ...

2002-01-01

110

An anxiety, personality and altitude symptomatology study during a 31-day period of hypoxia in a hypobaric chamber (experiment 'Everest-Comex 1997').  

PubMed

Extreme environmental situations are useful tools for the investigation of the general processes of adaptation. Among such situations, high altitude of more than 3000 m produces a set of pathological disorders that includes both cerebral (cAS) and respiratory (RAS) altitude symptoms. High altitude exposure further induces anxiety responses and behavioural disturbances. The authors report an investigation on anxiety responses, personality traits, and altitude symptoms (AS) in climbers participating in a 31-day period of confinement and gradual decompression in a hypobaric chamber equivalent to a climb from sea-level to Mount Everest (8848 m altitude). Personality traits, state-trait anxiety, and AS were assessed, using the Cattell 16 Personality Factor questionnaire (16PF), the Spielberger's State-Trait Anxiety Inventory (STAI), and the Lake Louise concensus questionnaire. Results show significant group effect for state-anxiety and AS; state-anxiety and AS increased as altitude increased. They also show that state-type anxiety shows a similar time-course to cAS, but not RAS. Alternatively, our results demonstrate a significant negative correlation between Factor M of the 16PF questionnaire, which is a personality trait that ranges from praxernia to autia. In contrast, no significant correlation was found between personality traits and AS. This suggests that AS could not be predicted using personality traits and further support that personality traits, such as praxernia (happening sensitivity), could play a major role in the occurrence of state-type anxiety responses in extreme environments. In addition, the general processes of coping and adaptation in individuals participating in extreme environmental experiments are discussed. PMID:11543191

Nicolas, M; Thullier-Lestienne, F; Bouquet, C; Gardette, B; Gortan, C; Joulia, F; Bonnon, M; Richalet, J P; Therme, P; Abraini, J H

1999-12-01

111

HAT-P-24b: AN INFLATED HOT JUPITER ON A 3.36 DAY PERIOD TRANSITING A HOT, METAL-POOR STAR  

SciTech Connect

We report the discovery of HAT-P-24b, a transiting extrasolar planet orbiting the moderately bright V = 11.818 F8 dwarf star GSC 0774-01441, with a period P = 3.3552464 {+-} 0.0000071 days, transit epoch T{sub c} = 2455216.97669 {+-} 0.00024 (BJD)11, and transit duration 3.653 {+-} 0.025 hr. The host star has a mass of 1.191 {+-} 0.042 M{sub sun}, radius of 1.317 {+-} 0.068 R{sub sun}, effective temperature 6373 {+-} 80 K, and a low metallicity of [Fe/H] = -0.16 {+-} 0.08. The planetary companion has a mass of 0.681 {+-} 0.031 M{sub J} and radius of 1.243 {+-} 0.072 R{sub J} yielding a mean density of 0.439 {+-} 0.069 g cm{sup -3}. By repeating our global fits with different parameter sets, we have performed a critical investigation of the fitting techniques used for previous Hungarian-made Automated Telescope planetary discoveries. We find that the system properties are robust against the choice of priors. The effects of fixed versus fitted limb darkening are also examined. HAT-P-24b probably maintains a small eccentricity of e = 0.052{sup +0.022}{sub -0.017}, which is accepted over the circular orbit model with false alarm probability 5.8%. In the absence of eccentricity pumping, this result suggests that HAT-P-24b experiences less tidal dissipation than Jupiter. Due to relatively rapid stellar rotation, we estimate that HAT-P-24b should exhibit one of the largest known Rossiter-McLaughlin effect amplitudes for an exoplanet ({Delta}V{sub RM} {approx_equal} 95 m s{sup -1}) and thus a precise measurement of the sky-projected spin-orbit alignment should be possible.

Kipping, D. M.; Bakos, G. A.; Hartman, J.; Torres, G.; Latham, D. W.; Noyes, R. W.; Beky, B.; Perumpilly, G.; Esquerdo, G. A.; Sasselov, D. D.; Stefanik, R. P. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States); Shporer, A. [Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Santa Barbara, CA 93106 (United States); Kovacs, Geza [Konkoly Observatory, Budapest (Hungary); Howard, A. W.; Marcy, G. W. [Department of Astronomy, University of California, Berkeley, CA 93106 (United States); Fischer, D. A. [Department of Astronomy, Yale University, New Haven, CT 06511 (United States); Johnson, J. A. [Department of Astrophysics, California Institute of Technology, MC 249-17, Pasadena, CA 91125 (United States); Lazar, J.; Papp, I.; Sari, P., E-mail: dkipping@cfa.harvard.ed [Hungarian Astronomical Association, Budapest (Hungary)

2010-12-20

112

Culture.  

ERIC Educational Resources Information Center

Twelve conference papers on cultural aspects of second language instruction include: "Towards True Multiculturalism: Ideas for Teachers" (Brian McVeigh); Comparing Cultures Through Critical Thinking: Development and Interpretations of Meaningful Observations" (Laurel D. Kamada); "Authority and Individualism in Japan and the USA" (Alisa Woodring);…

1997

113

Day to Day  

ERIC Educational Resources Information Center

A clean, healthy and safe school provides students, faculty and staff with an environment conducive to learning and working. However, budget and staff reductions can lead to substandard cleaning practices and unsanitary conditions. Some school facility managers have been making the switch to a day-schedule to reduce security and energy costs, and…

Jurecki, Dennis

2006-01-01

114

Abell-35 Phenomena in Symbiotic Stars: Discovery of 1.2 and 6.4 Day Periods in VV8 (V471 Per)  

NASA Astrophysics Data System (ADS)

We have collected high precision optical photometry of VV8, so far 782 individual observing runs uniformly distributed over the period 2005--2011. This dataset allows us to refine the known long periodicity of VV8 to P = 16.8 yr, with peak-to-valley amplitudes of ? B = 0.18 and ? V = 0.14 mag. In addition, we have discovered two new periodicities: 6.431 d (total amplitude ? B = ? V = ? I = 0.05 mag) and 1.185 d (? B = 0.022, ? V = 0.018, ? I = 0.014 mag). These two short periods are reminiscent of the Abell-35 phenomena displayed by binary nuclei of planetary nebulae that have gone through a common envelope phase. Twice the 6.431 d period would nicely correspond to the double-peaked light-curve that the G5 III star in VV8 would display if its Roche lobe would be ellipsoidally distorted.

Munari, U.; Siviero, A.; Tamajo, E.; Fiaschi, M.; Dallaporta, S.; Cherini, G.; Frigo, A.; Castellani, F.; Graziani, M.; Moretti, S.; Tomaselli, S.

115

25 CFR 291.9 - What must the Secretary do at the end of the 60-day comment period if the State offers an...  

Code of Federal Regulations, 2010 CFR

...offers an alternative proposal for Class III gaming procedures? 291.9 Section 291...INTERIOR ECONOMIC ENTERPRISES CLASS III GAMING PROCEDURES § 291.9 What must...offers an alternative proposal for Class III gaming procedures? Within 30 days of...

2010-04-01

116

East Asia Resource Library These items may be borrowed by K16 teachers, administrators, libraries, and institutions for a period of 10 to 90 days. There is no  

E-print Network

study skills and testtaking tips based on their own successful AP classes. Includes free access. Boston: Cheng & Tsui, 2009. Written by teachers for teachers and students, China in the World serves for courses on East Asian studies, the history of China, or Chinese language and culture at the high school

Acton, Scott

117

Seasonal prevalences of Cryptosporidium and Giardia infections in children attending day care centres in Salamanca (Spain) studied for a period of 15 months  

Microsoft Academic Search

Five studies were carried out in children younger than 4 years old attending regularly day care centres in order to determine the intestinal parasitization by Cryptosporidium and Giardia. The percent of children parasitized by Cryptosporidium was 10% (17 children out of 170 studied). Cryptosporidiosis was more frequent in winter than in other seasons (difference statistically significant). Giardia intestinulis which was

J. Rodríguez-Hernández; A. Canut-Blasco; A. M. Martín-Sánchez

1996-01-01

118

mean live weight of 32 kg were kept in individual pens and received only cereal based diets (97 p. 100 oats). They were subjected to a 10-days faeces collection period. Three types  

E-print Network

. 100 oats). They were subjected to a 10-days faeces collection period. Three types of oats were tested : two regular oats (black and white) and one batch of naked oats containing 15.0, 11.8 and 2.9 p. 100 relationships : The results showed that the energy value (DE) of oats was closely related to the cell wall

Paris-Sud XI, Université de

119

New outburst from the X-ray pulsar RX J0440.9+4431 and discovery of a possible ~155 days orbital period  

NASA Astrophysics Data System (ADS)

On the basis of recent SWIFT/BAT observations we report a detection of the third consequent outburst from the X-ray pulsar RX J0440.9+4431, which was started on 2011-01-29. The persistent X-ray source RX J0440.9+4431 has been found during the ROSAT Galactic plane survey with the optical companion of BSD 24-491 / LS V +44 17) classified as a Be star (Motch et al., A&A, 323, 853, 1997). Later Reig, Roche (MNRAS, 306, 100, 1999) detected X-ray pulsations from this source with the period of ~202.5 s.

Tsygankov, S.; Lutovinov, A.; Krivonos, R.

2011-01-01

120

Influence of Giving Salicylic Acid for Different Time Periods on Flowering and Growth in the Long-Day Plant Lemna gibba G3 12  

PubMed Central

When the long-day plant Lemna gibba L., strain G3 is grown under continuous light on ammonium-free half-strength Hutner's medium (NH4+-free 0.5 H medium) growth is excellent, but flowering is severely inhibited and often is zero. Addition of 10 micromolar salicylic acid (SA) to NH4+-free 0.5 H medium quickly reverses this inhibition and leads to optimal flowering. The SA treatment also leads to a considerable reduction in the growth rate and increase in frond gibbosity. Removal of SA from the medium quickly leads to an increase in the growth rate and a large decrease in flowering. Thus, for maximal effectiveness SA must be present in the medium for the entire experiment, and the effect of SA is clearly not inductive. PMID:16662462

Cleland, Charles F.; Ben-Tal, Yosef

1982-01-01

121

Measurement of the vertical profile of atmospheric SO 2 during the heating period in Beijing on days of high air pollution  

NASA Astrophysics Data System (ADS)

This paper reports altitude-resolved concentrations of sulfur dioxide (SO 2) and particulate matter up to 10 microns in diameter (PM 10) in the planetary boundary layer of major urban centers during extreme pollution episodes. The concentration of SO 2 was observed continuously from November 24, 2004, to December 4, 2004, in Beijing during the heating period. Fluorescence SO 2 analyzers were used to measure the atmospheric SO 2 concentrations. Four SO 2 analyzers were placed at 4 different levels (8 m, 47 m, 120 m, and 280 m) of the 325-m high meteorological observation tower of the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences. A maximal SO 2 concentration of 172.3 ppb was measured during this pollution episode, and SO 2 concentration increased with altitude and reached its maximal value at ˜50 m. The study also analyzed the meteorological situation before, during, and after the pollution episode.

Yang, Sun; Yuesi, Wang; Changchun, Zhang

122

Observations on the flight paths of the day-flying moth Virbia lamae during periods of mate location: do males have a strategy for contacting the pheromone plume?  

PubMed

1. To maximize the probability of rapid contact with a female's pheromone plume, the trajectories of male foraging flights might be expected to be directed with respect to wind flow and also to be energetically efficient. 2. Flights directed either upwind, downwind, or crosswind have been proposed as optimal strategies for rapid and/or energetically efficient plume contact. Other possible strategies are random and Lévy walks, which have trajectories and turn frequencies that are not dictated by the direction of wind flow. 3. The planar flight paths of males of the day-active moth Virbia lamae were recorded during the customary time of its sexual activity. 4. We found no directional preference in these foraging flights with respect to the direction of contemporaneous wind flow, but, because crosswind encompasses twice the possible orientations of either upwind or downwind, a random orientation is in effect a de facto crosswind strategy. 5. A crosswind preference should be favoured when the plume extends farther downwind than crosswind, and this strategy is realized by V. lamae males by a random orientation of their trajectories with respect to current wind direction. PMID:21729068

Cardé, Ring T; Cardé, Anja M; Girling, Robbie D

2012-01-01

123

Clonally Derived Human Embryonic Stem Cell Lines Maintain Pluripotency and Proliferative Potential for Prolonged Periods of Culture  

Microsoft Academic Search

Embryonic stem (ES) cell lines derived from human blastocysts have the developmental potential to form derivatives of all three embryonic germ layers even after prolonged culture. Here we describe the clonal derivation of two human ES cell lines, H9.1 and H9.2. At the time of the clonal derivation of the H9.1 and H9.2 ES cell lines, the parental ES cell

Michal Amit; Melissa K. Carpenter; Margaret S. Inokuma; Choy-Pik Chiu; Charles P. Harris; Michelle A. Waknitz; Joseph Itskovitz-Eldor; James A. Thomson

2000-01-01

124

Popular science periodicals in Paris and London: The emergence of a low scientific culture, 1820–1875  

Microsoft Academic Search

Efforts to diffuse useful knowledge on the part of dedicated social reformers, enterprising publishers, and vigorous voluntary associations created new forms of popular literature in the urban centres of Paris and London during the middle decades of the nineteenth century. Popular science periodicals, especially, embodied the aims of the advocates of cheap literature, by providing ‘improving’ information at prices low

Susan Sheets-Pyenson

1985-01-01

125

Altered energy status of primary cerebellar granule neuronal cultures from rats exposed to lead in the pre- and neonatal period.  

PubMed

This paper examines the effect of pre- and neonatal exposure of rats to lead (0.1% lead acetate in drinking water, resulting in rat offspring whole blood lead concentration (Pb-B) 4?g/dL) on the energy status of neuronal mitochondria by measuring changes in ATP, ADP, AMP, adenosine, TAN concentration, adenylate energy charge value (AEC) and mitochondrial membrane potential in primary cerebellar granule neurons (CGC) in dissociated cultures. Fluorescence studies were performed to imaging and evaluate mitochondria mass, mitochondrial membrane potential, intracellular and mitochondrial reactive oxygen species (ROS) production. The Na(+)/K(+) ATPase activity in intact CGC was measured spectrophotometrically. Our data shows that pre- and neonatal exposure of rats to Pb, even below the threshold of whole blood Pb value considered safe for people, affects the energy status of cultured primary cerebellar granule neurons through a decrease in ATP and TAN concentrations and AEC value, inhibition of Na(+)/K(+) ATPase, and increase in intracellular and mitochondrial ROS concentration. These observations suggest that even these low levels of Pb are likely to induce important alterations in neuronal function that could play a role in neurodegeneration. PMID:21108985

Baranowska-Bosiacka, I; Gutowska, I; Marchetti, C; Rutkowska, M; Marchlewicz, M; Kolasa, A; Prokopowicz, A; Wiernicki, I; Piotrowska, K; Ba?kiewicz, M; Safranow, K; Wiszniewska, B; Chlubek, D

2011-02-01

126

"I Go to School Six Days a Week": The Role of Cultural and Religious Practices within Hybrid Turkish-American Communities in Supporting Academic and Socioemotional Growth  

ERIC Educational Resources Information Center

Children's participation in cultural activities within the community, and the particular cognitive and socioemotional skills that they gain as a result of their participation, have been thoroughly studied (Cole, 1990; Gallimore & Tharp, 1990; Moll et al., 2005; Scribner & Cole, 1981). However, the connection of these skills to school learning or…

Isik-Ercan, Zeynep

2012-01-01

127

Characterization of 83-kilodalton nonmuscle caldesmon from cultured rat cells: stimulation of actin binding of nonmuscle tropomyosin and periodic localization along microfilaments like tropomyosin  

PubMed Central

Nonmuscle caldesmon purified from cultured rat cells shows a molecular weight of 83,000 on SDS gels, Stokes radius of 60.5 A, and sedimentation coefficient (S20,w) of 3.5 in the presence of reducing agents. These values give a native molecular weight of 87,000 and a frictional ratio of 2.04, suggesting that the molecule is a monomeric, asymmetric protein. In the absence of reducing agents, the protein is self-associated, through disulfide bonds, into oligomers with a molecular weight of 230,000 on SDS gels. These S-S oligomers appear to be responsible for the actin-bundling activity of nonmuscle caldesmon in the absence of reducing agents. Actin binding is saturated at a molar ratio of one 83-kD protein to six actins with an apparent binding constant of 5 X 10(6) M-1. Because of 83-kD nonmuscle caldesmon and tropomyosin are colocalized in stress fibers of cultured cells, we have examined effects of 83-kD protein on the actin binding of cultured cell tropomyosin. Of five isoforms of cultured rat cell tropomyosin, tropomyosin isoforms with high molecular weight values (40,000 and 36,500) show higher affinity to actin than do tropomyosin isoforms with low molecular weight values (32,400 and 32,000) (Matsumura, F., and S. Yamashiro-Matsumura. 1986. J. Biol. Chem. 260:13851-13859). At physiological concentration of KCl (100 mM), 83-kD nonmuscle caldesmon stimulates binding of low molecular weight tropomyosins to actin and increases the apparent binding constant (Ka from 4.4 X 10(5) to 1.5 X 10(6) M-1. In contrast, 83-kD protein has slight stimulation of actin binding of high molecular weight tropomyosins because high molecular weight tropomyosins bind to actin strongly in this condition. As the binding of 83-kD protein to actin is regulated by calcium/calmodulin, 83-kD protein regulates the binding of low molecular weight tropomyosins to actin in a calcium/calmodulin-dependent way. Using monoclonal antibodies to visualize nonmuscle caldesmon along microfilaments or actin filaments reconstituted with purified 83-kD protein, we demonstrate that 83-kD nonmuscle caldesmon is localized periodically along microfilaments or actin filaments with similar periodicity (36 +/- 4 nm) as tropomyosin. These results suggest that 83- kD protein plays an important role in the organization of microfilaments, as well as the control of the motility, through the regulation of the binding of tropomyosin to actin. PMID:3384851

1988-01-01

128

Increase in nitrate uptake by soybean plants during interruption of the dark period with low intensity light  

NASA Technical Reports Server (NTRS)

Diurnal patterns of net NO3- uptake by nonnodulated soybean [Glycine max (L.) Merr. cv. Ransom] plants growing in flowing hydroponic culture at 26 and 16 degrees C root temperatures were measured at hourly intervals during alternate days of a 12-day growth period. Ion chromatography was used to determine removal of NO3- from the culture solution. Day and night periods of 9 and 15 h were used during growth. The night period included two 6-h dark periods and an intervening 3-h period of night interruption by incandescent lamps to effect a long-day photoperiod and repress floral initiation. At both root temperatures, the average specific rates of NO3- uptake were twice as great during the night interruption period as during the day period; they were greater during the day period than during the dark periods; and they were greater during the dark period immediately following the day period than during the later dark period that followed the night interruption. While these average patterns were repetitious among days, measured rates of uptake varied hourly and included intervals of net efflux scattered through the day period and more frequently through the 2 dark periods. Root temperature did not affect the average daily specific rates of uptake or the qualitative relationships among day, dark and night interruption periods of the diurnal cycle.

Raper, C. D. Jr; Vessey, J. K.; Henry, L. T.

1991-01-01

129

Pi Day.  

ERIC Educational Resources Information Center

Presents a day of activities to encourage students to participate in mathematics. Five contests include poster; model; mathematics puzzle; mathematics problem challenge; and essay. Some student entries and the rules for each contest are described. (MKR)

Waldner, Bruce C.

1994-01-01

130

Eglin Archaeology Day 2013 Eglin Archaeology Day 2013 Summary  

E-print Network

#12;#12; #12;Eglin Archaeology Day 2013 #12;Eglin Archaeology Day 2013 Summary The second annual Eglin Archaeology Day was held on March 16, 2013 from 102 at Jackson Guard Natural a fun and educational venue to inform the public about cultural resources, archaeology, and local

131

History Happens Day by Day.  

ERIC Educational Resources Information Center

Contends that teaching students about history through storytelling enlivens the classroom and enables students to understand the past, their own history, and culture. Provides a list of 12 elements that can be included in a story, such as foods, historical context, transportation, schools, and family life/entertainment. (CMK)

Pierce, Judy C.; Terry, Kay

2001-01-01

132

Dinosaur Day!  

NSDL National Science Digital Library

On Dinosaur Day, first-grade students rotated through four dinosaur-related learning stations that integrated science content with art, language arts, math, and history in a fun and time-efficient manner. The event drew parents, teachers, and students together as they helped each other discuss, write, draw, measure, mix, and record at each learning station.

Baptiste, H. P.; Nakamura, Sandra

2006-01-01

133

Day wetting  

Microsoft Academic Search

About 1% of healthy children over the age of 5 years have troublesome daytime wetting. Two-thirds of those who wet by day are reliably dry at night. The problem is more common in girls and is usually the result of urge incontinence. Although the wetting may be exacerbated by giggling and\\/or stress, pure giggle micturition and isolated stress incontinence are

S. R. Meadow

1990-01-01

134

Inspire Day  

ERIC Educational Resources Information Center

The authors collaborated on hosting a "Spring Inspire Day." planned and delivered by preservice elementary teachers as a social studies/science methods project. Projects that have authentic application opportunities can make learning meaningful for prospective teachers as well as elementary students. With the impetus for an integrated…

Bohach, Barbara M.; Meade, Birgitta

2014-01-01

135

Election Day  

NSDL National Science Digital Library

Election Day teaches how elections work in the United States. Players learn about political parties, public opinion, campaign financing, election law, political marketing, strategic planning, and the media. The game is well-suited for high-school and college students.

Washington, University O.

136

34 CFR 300.11 - Day; business day; school day.  

...business day or school day. (b) Business day means Monday through Friday, except...specifically included in the designation of business day, as in § 300.148(d)(1)(ii)). (c)(1) School day means any day, including a partial...

2014-07-01

137

Heritage Days: A Black Perspective.  

National Technical Information Service (NTIS)

This is a documentation of a three day interpretive celebration held at stored college in 1976. Shirley Chisolm, Andre Young and other political leaders speak on the significant historical, cultural and social aspects of black heritage in America. Musical...

1994-01-01

138

Radiometric detection of yeasts in blood cultures of cancer patients  

SciTech Connect

During a 12-month period, 19,457 blood cultures were collected. Yeasts were isolated from 193 cultures derived from 76 cancer patients. Candida albicans or Candida tropicalis accounted for 79% of isolates. Of the three methods compared, the radiometric method required 2.9 days to become positive, blind subculture required 2.6 days, and Gram stains required 1 day. However, the radiometric method was clearly superior in detecting positive cultures, since 73% of all cultures were first detected radiometrically, 22% were detected by subculture, and only 5% were detected by Gram stain. Although 93% of the isolates were detected by aerobic culture, five (7%) isolates were obtained only from anaerobic cultures. Seven days of incubation appear to be sufficient for the radiometric detection of yeasts.

Hopfer, R.L.; Orengo, A.; Chesnut, S.; Wenglar, M.

1980-09-01

139

Day Care: Resources for Decisions.  

ERIC Educational Resources Information Center

The question of federal day care programs on a mass scale oriented toward influencing family life is discussed, and a number of issues concerning the behavioral and social effects of such a system are raised. This document is divided into six parts. Part I discusses the following: day care settings--social, cultural, and anthropological…

Grotberg, Edith H., Ed.

140

Japan: The Modernization of an Ancient Culture. Series on Public Issues No. 3.  

ERIC Educational Resources Information Center

This booklet, one of a series of booklets intended to apply economic principles to major social and political issues of the day, traces the modernization of the ancient culture of Japan. Four major areas are covered: (1) "An Ancient Culture" covers the period from the first settling of Japan through the Heian period, the medieval ages, the Meiji…

Wolken, Lawrence C.

141

Periodicities of solar flare and its relations  

NASA Technical Reports Server (NTRS)

Daily flare index during period between March 1975 and May 1978, were studied by using power spectral analysis method. There are periodicities between 4.5 days to 21.7 days. Our results confirm the periodicity around 12.5 days found by several authors. This periodicity was attributed to the rotation of solar core. Long term periodicities were given where 88 and 320 days periodicities were confirmed. The relation between these periodicities and other solar activities periodicity were given.

Hady, Ahmed A.

1995-01-01

142

REX WALHEIM, MS-2 (GREEN) Meal Day 1* Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 -JULY 4th MEAL  

E-print Network

REX WALHEIM, MS-2 (GREEN) Meal Day 1* Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 - JULY 4th MEAL/1/2011 SHUTTLE MENU STS-135 Stow By Day #12;SHUTTLE MENU STS-135 Stow By Day REX WALHEIM, MS-2 (GREEN) Meal Day 8

143

Serial Testing from a 3-Day Collection Period by Use of the Bartonella Alphaproteobacteria Growth Medium Platform May Enhance the Sensitivity of Bartonella Species Detection in Bacteremic Human Patients  

PubMed Central

Patients with infection from bacteremic Bartonella spp., tested using Bartonella Alphaproteobacteria growth medium (BAPGM), were retrospectively categorized into one of two groups that included those whose blood was collected once (group 1; n = 55) or three times (group 2; n = 36) within a 1-week period. Overall, 19 patients (20.8%) were PCR positive for one or more Bartonella spp. using the BAPGM platform. Seven patients (12.7%) in group 1 tested positive, and 12 patients (33.3%) in group 2 tested positive. Detection was improved when the patients were tested three times within a 1-week period (odds ratio, 3.4 [95% confidence interval, 1.2 to 9.8]; P = 0.02). Obtaining three sequential blood samples during a 1-week period should be considered a diagnostic approach when bartonellosis is suspected. PMID:23486720

Pultorak, Elizabeth L.; Maggi, Ricardo G.; Mascarelli, Patricia E.

2013-01-01

144

Cultural Treatment of Selected Species for Woody Biomass Production in the Pacific Northwest : Final Report for the Period August 1, 1978 - September 30, 1984.  

SciTech Connect

The project focused on six major objectives related not only to tree growth, but to other aspects of plantation management and operation in the Pacific Northwest as well: (1) determine the growth and yield of red alder (Alnus rubra) and black cottonwood (Populus trichocarpa) under a variety of cultural treatments and densities (tree spacing); (2) assess the interactions of soil characteristics and cultural treatments on fertility and biomass production; (3) assess the occurrence and effects of pests that may be associated with plantation management; (4) evaluate the applicability of a prototype whole-tree baling machine for handling biomass crops after harvest; (5) identify and quantify the thermal and physical characteristics of plantation-grown fuels; and (6) estimate the cost of producing plantation-grown fuels. 171 references, 35 figures, 40 tables.

Schroeder, Paul R.

1984-11-01

145

7-29 A coal-burning power plant produces 300 MW of power. The amount of coal consumed during a one-day period and the rate of air flowing through the furnace are to be determined.  

E-print Network

7-11 7-29 A coal-burning power plant produces 300 MW of power. The amount of coal consumed during The heating value of the coal is given to be 28,000 kJ/kg. Analysis (a) The rate and the amount of heat inputs'tQQ The amount and rate of coal consumed during this period are kg/s48.33 s360024 kg10893.2 MJ/kg28 MJ101.8 6

Bahrami, Majid

146

When Every Day Is Professional Development Day  

ERIC Educational Resources Information Center

In the Monroe Township (New Jersey) Public Schools, teachers' learning occurs daily, not just on one day in October and February. Central office and school-level administrators foster job-embedded teacher growth. Every day is a professional development day in the district, but that has not always been so. How did the district become a system with…

Tienken, Christopher H.; Stonaker, Lew

2007-01-01

147

The biosynthesis of rosmarinic acid in suspension cultures of Coleus blumei  

Microsoft Academic Search

Suspension cultures of Coleus blumei accumulate very high amounts of rosmarinic acid, an ester of caffeic acid and 3,4-dihydroxyphenyllactate, in medium with elevated sucrose concentrations. Since the synthesis of this high level of rosmarinic acid occurs in only five days of the culture period, the activities of the enzymes involved in the biosynthesis are very high. Therefore all the enzymes

Maike Petersen; Elisabeth Häusler; Juliane Meinhard; Barbara Karwatzki; Claudia Gertlowski

1994-01-01

148

Is Screening for Depression in the Perinatal Period Enough? The Co-Occurrence of Depression, Substance Abuse, and Intimate Partner Violence in Culturally Diverse Pregnant Women  

PubMed Central

Abstract Background The perinatal period provides unique opportunities to identify and intervene with the co-occurrence of perinatal depression, intimate partner violence (IPV), and substance use problems. Psychosocial screening recommended for women seen in maternal child health settings tends to target single rather than multiple risk factors; there is limited research examining the co-occurrence of these issues especially in racially and ethnically diverse women across the perinatal period. These analyses explore the relationships of sociodemographic, psychosocial, and behavioral characteristics in a large, diverse sample of women. Method Women receiving perinatal services at routinely scheduled visits, including the 6-week postpartum visit, were recruited from 10 community obstetric/gynecologic clinics. Data were collected on perinatal depression, IPV, maternal substance use, and sociodemographic characteristics by bilingual, bicultural research assistants. Results A total of 1868 women were screened, 1526 (82%) Latina, 1099 (58.8%) interviewed in Spanish; 20.4% (n=382) screened positive for depressive symptoms based on an Edinburgh Postnatal Depression Scale score of 10 or above, 20.9% reported harmful drinking, 4.3% reported drug use, 23% reported substance use problems, and 3.5% reported current or recent IPV. Women who were Black, Asian, Pacific Islander, or other race/ethnicity had greater odds for depressive symptoms relative to women who were Hispanic or Latino (odds ratio [OR]=1.81, p=0.005). Women reporting substance use problems (OR=2.37, p<0.0001) and IPV (OR=3.98, p<0.0001) had higher odds for depressive symptoms. Conclusion In a predominately Latina sample, 1 in 5 mothers (20.4%) screened positive for depressive symptoms and over one third (36.7%) reported one or more psychosocial issues during the perinatal period. Screening for multiple risk factors rather than just one can help clinicians tailor interventions for the successful management of psychosocial issues. PMID:23931153

Hazen, Andrea L.; Baker-Ericzen, Mary J.; Landsverk, John; Horwitz, Sarah McCue

2013-01-01

149

Non-spore forming eubacteria isolated at an altitude of 20,000 m in Earth's atmosphere: extended incubation periods needed for culture-based assays  

USGS Publications Warehouse

On 13 August 2004, an atmospheric sample was collected at an altitude of 20,000 m along a west to east transect over the continental United States by NASA’s Stratospheric and Cosmic Dust Program. This sample was then shipped to the US Geological Survey’s Global Desert Dust program for microbiological analyses. This sample, which was plated on a low nutrient agar to determine if cultivable microorganisms were present, produced 590 small yellow to off-white colonies after approximately 7 weeks of incubation at room-temperature. Of 50 colonies selected for identification using 16S rRNA sequencing, 41 belonged to the family Micrococcaceae, seven to the family Microbacteriaceae, one to the genus Staphylococcus, and one to the genus Brevibacterium. All of the isolates identified were non-spore-forming pigmented bacteria, and their presence in this sample illustrate that it is not unusual to recover viable microbes at extreme altitudes. Additionally, the extended period required to initiate growth demonstrates the need for lengthy incubation periods when analyzing high-altitude samples for cultivable microorganisms.

Griffin, Dale W.

2008-01-01

150

Periodic functions with variable period  

E-print Network

The examples of rhythmical signals with variable period are considered. The definition of periodic function with the variable period is given as a model of such signals. The examples of such functions are given and their variable periods are written in the explicit form. The system of trigonometric functions with the variable period is considered and its orthogonality is proved. The generalized system of trigonometric functions with the variable period is also suggested; some conditions of its existence are considered.

M. V Pryjmak

2010-06-08

151

Stress-Induced Changes in the Expression of the Clock Protein PERIOD1 in the Rat Limbic Forebrain and Hypothalamus: Role of Stress Type, Time of Day, and Predictability  

PubMed Central

Stressful events can disrupt circadian rhythms in mammals but mechanisms underlying this disruption remain largely unknown. One hypothesis is that stress alters circadian protein expression in the forebrain, leading to functional dysregulation of the brain circadian network and consequent disruption of circadian physiological and behavioral rhythms. Here we characterized the effects of several different stressors on the expression of the core clock protein, PER1 and the activity marker, FOS in select forebrain and hypothalamic nuclei in rats. We found that acute exposure to processive stressors, restraint and forced swim, elevated PER1 and FOS expression in the paraventricular and dorsomedial hypothalamic nuclei and piriform cortex but suppressed PER1 and FOS levels exclusively in the central nucleus of the amygdala (CEAl) and oval nucleus of the bed nucleus of the stria terminalis (BNSTov). Conversely, systemic stressors, interleukin-1? and 2-Deoxy-D-glucose, increased PER1 and FOS levels in all regions studied, including the CEAl and BNSTov. PER1 levels in the suprachiasmatic nucleus (SCN), the master pacemaker, were unaffected by any of the stress manipulations. The effect of stress on PER1 and FOS was modulated by time of day and, in the case of daily restraint, by predictability. These results demonstrate that the expression of PER1 in the forebrain is modulated by stress, consistent with the hypothesis that PER1 serves as a link between stress and the brain circadian network. Furthermore, the results show that the mechanisms that control PER1 and FOS expression in CEAl and BNSTov are uniquely sensitive to differences in the type of stressor. Finally, the finding that the effect of stress on PER1 parallels its effect on FOS supports the idea that Per1 functions as an immediate-early gene. Our observations point to a novel role for PER1 as a key player in the interface between stress and circadian rhythms. PMID:25338089

Al-Safadi, Sherin; Al-Safadi, Aya; Branchaud, Marie; Rutherford, Spencer; Dayanandan, Arun; Robinson, Barry; Amir, Shimon

2014-01-01

152

DARPA Robotics Proposers' Day  

E-print Network

DARPA Robotics Challenge Proposers' Day April 16, 2012 #12;2 DARPA Robotics Challenge Proposers' Day The Proposers' Day will begin at 12:10 PM EDT April 16, 2012 #12;3 DARPA Robotics Challenge Proposers' Day Dr. Gill Pratt Program Manager, DARPA #12;DARPA Robotics Challenge Proposers' Day Agenda 4 12

153

Adult Day Centers  

MedlinePLUS

... programs and discussion groups. Why use an adult day center One reason to use an adult day ... your needs for future care. Evaluating an adult day center Consider the following when you evaluate an ...

154

Activation of CYP1A1 gene expression during primary culture of mouse hepatocytes  

Microsoft Academic Search

Expression of CYP1A1 mRNA in mouse hepatocytes in primary culture was investigated. The expression was obvious on day 3 of culture without addition of any known ligands of the aryl hydrocarbon receptor and increased with culture period. Removal of insulin from and addition of hydrogen peroxide to the medium enhanced and suppressed the expression, respectively. The CYP1A1 mRNA expression was

Hisako Tamaki; Tsutomu Sakuma; Yo-ichi Uchida; Atika Jaruchotikamol; Nobuo Nemoto

2005-01-01

155

76 FR 63807 - Leif Erikson Day, 2011  

Federal Register 2010, 2011, 2012, 2013

...celebrate the many ways Nordic-American culture has enriched our Nation. The triumphs...Erikson and celebrate our Nordic-American heritage, the Congress, by joint...Leif Erikson Day. I call upon all Americans to observe this day with...

2011-10-13

156

Alabama Special Days  

NSDL National Science Digital Library

Today, we are going to look at special days in Alabama history. Today we are going to look at four special Alabama Days: 1) Boll Weevil Festival 2) Helen Keller Day 3) Mardi Gras 4) Shrimp Festival I am giving you videos to watch about each special day. I am ...

Lucky, Ms.

2012-04-04

157

Cultural Diplomacy in Europe.  

ERIC Educational Resources Information Center

The evolution of European government activities in the sphere of international cultural relations is examined. Section 1 describes the period between World War I and World War II when European governments tried to enhance their prestige and policies by means of cultural propaganda. Section 2 analyzes the period during World War II when the…

Haigh, Anthony

158

The 90 Day Probationary Period: Rhetoric or Reality  

Microsoft Academic Search

The purpose of this paper is to identify whether what the proponents of the Employment Relations (Probationary Employment) Amendment Bill presented before parliament, was rhetoric or reality. A short comparative analysis is performed to identify the severity of the bill against systems currently in use in both Australia and Ireland. This resulted in the bill being categorised as 'harsher', compared

Shannon Hegan

2006-01-01

159

Department of Chemical Engineering The Chemical Engineering Department Day program was stretched over 1 days.  

E-print Network

visits and a cultural program on the first day; and a panel discussion and reminiscences on the second. It was the session on Reminiscences which was attended by 15 ex-faculty members and 28 ex-staff members, along

Srivastava, Kumar Vaibhav

160

Volunteer Day Class Photo  

E-print Network

food to the homeless. Have a great day, everyone! Class Photo The ELI Class picture for Fall, 2011 in the classrooms. Veterans Day: Friday, November 11th, is a holiday. There will be no ELI classes and the ELI Main

Pilyugin, Sergei S.

161

Riley-Day syndrome  

MedlinePLUS

Riley-Day syndrome is an inherited disorder that affects nerves throughout the body. ... Riley-Day syndrome is passed down through families (inherited). A person must inherit a copy of the defective gene ...

162

Volunteer Day Activities  

E-print Network

CoffeeTalk (Shelby) Ben and Jerry's on Archer Rd. Free (Bringmoney for coffee and food if youlike Institute Volume 109, Issue 3 May 28, 2010 #12;Manners and Culture Q: What is the polite way to place my Europe, where this custom didn't develop the way it did in Southern European and Mediterranean culture

Pilyugin, Sergei S.

163

Adult Day Services  

MedlinePLUS

... 3 $35-45 $60-70 $130-140 Adult Day Services $75,000 $50,000 $25,000 $0 Adult Day Services At-a-Glance • Families share in the ... as many locations 5 • More funding for adult day services decreases Medicaid costs by reducing full-time ...

164

Adult Education in the American Experience from the Colonial Period to the Present. The Jossey-Bass Higher and Adult Education Series.  

ERIC Educational Resources Information Center

This book offers a comprehensive history of adult education in the United States from the colonial period to the present day. Chapter 1 discusses definitions of adult education and explores formative influences. Chapters 2-3 on the colonial and post-Revolutionary periods trace an Atlantic information network, rise of a literate culture, Puritan…

Stubblefield, Harold W.; Keane, Patrick

165

Culture Computing: Interactive Technology to Explore Culture  

NASA Astrophysics Data System (ADS)

The present day rapid development of media science and digital technology is offering the modern generation more opportunities as well as challenges as the new fundamental literacy. Therefore, to reach the modern generation on issues such as an appreciation of cultures, we have to find common grounds based on digital media technology. In an increasingly hybrid cultural environment, interaction and fusion of cultural factors with the computer technology will be an investigation into the possibilities of providing an experience into the cultures of the world, operating in the environments the modern generation inhabits. Research has created novel merging of traditional cultures and literature with recent media literacy. Three cultural computing systems, Media Me, BlogWall and Confucius Computer, are presented in this chapter. Studies showed that users gave positive feedback to their experience of interacting with cultural computing systems.

Cheok, Adrian David

166

Embryonic mouse pre-metatarsal development in organ culture  

NASA Technical Reports Server (NTRS)

Embryonic mouse pre-metatarsals were removed from embryos at 13 days of gestation and cultured in a defined, serum-free medium for up to 15 days. By histological analysis, we observe that the cultured pre-metatarsal tissue undergoes a similar developmental profile as pre-metatarsals growing normally in vivo. The initial mesenchyme condensation regions undergo differentiation and morphogenesis to form distinct rods made up of cartilage tissue. A marker of this differentiation step is the synthesis of type II collagen. Metabolic labelling, pepsin digestion, SDS-PAGE, and autoradiography were used to demonstrate this protein when cartilage tissue is present in the cultures. After additional culture time, terminal chondrocyte differentiation and morphogenesis take place in specific regions of the cartilage rods to form bands of hypertrophied chondrocytes. One marker of this differentiation step is the synthesis of the enzyme alkaline phosphatase. We have measured the activity of this enzyme throughout the culture period and see a substantial increase at the time of terminal chondrocyte differentiation. Another feature of hypertrophied chondrocytes is that the matrix around the cells becomes calcified. Calcified matrix in our cultured pre-metatarsals was visualized by staining with alizarin red. By supplementing the defined culture medium with ITS, we observed that terminal chondrocyte differentiation took place in a shorter culture time. Supplementation of the medium with serum results in a similar acceleration of terminal differentiation, and, with additional culture time, an osteoid-like matrix forms around the central region of the rods.

Klement, B. J.; Spooner, B. S.

1993-01-01

167

Sensory and chemical properties of white pickled cheese produced using kefir, yoghurt or a commercial cheese culture as a starter  

Microsoft Academic Search

We examined the sensory and chemical properties during a 120-day ripening period of white pickled cheeses produced using kefir, yoghurt, or commercial cheese cultures as the starter. Starter culture type had a significant impact on acidity, pH, salt, and fat levels in cheese (p0.01), as well as on ash level, appearance, and odour properties (p0.05). During ripening, culture type significantly

A. Goncu; Z. Alpkent

2005-01-01

168

Legend Permit Days  

E-print Network

all day §Sat Only §Sat till noon, No Sunday §No Travel §Sat & Sun Till Noon §R§Special Restrictions'trailer. §Ohio ­§Sunrise till 3pm on Sat & Sun. §Michigan ­§All day Sat, & till 3pm on §Sunday. §Minnesota ­§Memorial Day to Labor §Day ­ 2am to 10pm on Sat, & 2am §to 2pm on Sun. §Oregon ­§Till noon on sat between

Minnesota, University of

169

Periodic Table  

NSDL National Science Digital Library

This unique periodic table presents the elements in an interesting visual display. Select an element, and find an image of the element, a description, history, and even an animation. Other chemical data is linked as a PDF file (requires Acrobat Reader).

2010-01-01

170

Periodic behaviors  

E-print Network

This paper studies behaviors that are defined on a torus, or equivalently, behaviors defined in spaces of periodic functions, and establishes their basic properties analogous to classical results of Malgrange, Palamodov, Oberst et al. for behaviors on R^n. These properties - in particular the Nullstellensatz describing the Willems closure - are closely related to integral and rational points on affine algebraic varieties.

Napp, Diego; Shankar, Shiva

2010-01-01

171

Day Care Personnel Management.  

ERIC Educational Resources Information Center

The information presented in this guide focuses on the knowledge, skills, values, and attitudes needed for effective personnel management in day care settings. Information included in this publication came from the suggestions of day care directors who participated in Training for Child Care Project workshops on administration, as well as from…

Levi Strauss Foundation, Inc., San Francisco, CA.

172

RED-LETTER DAYS  

EPA Science Inventory

The word "red-letter" is an adjective meaning "of special significance." It's origin is from the practice of marking Christian holy days in red letters on calendars. The "red-letter days" to which I refer occurred while I was a graduate student of ...

173

Family Science Day  

ERIC Educational Resources Information Center

This article describes a family-friendly science day event that encourages scientific discovery through hands-on activities, while also providing an opportunity to learn about scientific careers from actual research scientists and science educators, thereby raising awareness of the importance of STEM in our society. The one-day event bought…

McCubbins, Sara; Thomas, Bethany; Vetere, Michael

2014-01-01

174

Cultural Calendar  

NSDL National Science Digital Library

This activity combines cultural exploration with number patterns and systems. Choose a culture or historical period and have learners make a calendar for a month in that time. For more challenge, pick a country that uses different numerals, such as India or China or go back in time and make calendars for a month in ancient Mayan times, using the Mayan number system. Ask learners to compare: How are the calendars theyâve made different from the calendars we use? How are they the same? What patterns do you notice? Available as a web page and downloadable PDF. Blank calendar template is also available as a downloadable PDF. Students should be able to write numerals to 30 and have some familiarity with calendars.

2010-01-01

175

Perfusion enhanced polydimethylsiloxane based scaffold cell culturing system for multi-well drug screening platform.  

PubMed

Conventional two-dimensional cultures in monolayer and sandwich configuration have been used as a model for in vitro drug testing. However, these culture configurations do not present the actual in vivo liver cytoarchitecture for the hepatocytes cultures and thus they may compromise the cells liver-specific functions and their cuboidal morphology over longer term culture. In this study, we present a three-dimensional polydimethylsiloxane (PDMS) scaffold with interconnected spherical macropores for the culturing of rat liver cells (hepatocytes). The scaffolds were integrated into our perfusion enhanced bioreactor to improve the nutrients and gas supply for cell cultures. The liver-specific functions of the cell culture were assessed by their albumin and urea production, and the changes in the cell morphology were tracked by immunofluorescence staining over 9 days of culture period. N-Acetyl-Para-Amino-Phenol (acetaminophen) was used as drug model to investigate the response of cells to drug in our scaffold-bioreactor system. Our experimental results revealed that the perfusion enhanced PDMS-based scaffold system provides a more conducive microenvironment with better cell-to-cell contacts among the hepatocytes that maintains the culture specific enzymatic functions and their cuboidal morphology during the culturing period. The numerical simulation results further showed improved oxygen distribution within the culturing chamber with the scaffold providing an additional function of shielding the cell cultures from the potentially detrimental fluid induced shear stresses. In conclusion, this study could serve a crucial role as a platform for future preclinical hepatotoxicity testing. PMID:24399780

Tania, Marshella; Hsu, Myat Noe; Png, Si Ning; Leo, Hwa Liang; Toh, Guoyang William; Birgersson, Erik

2014-01-01

176

Periodic Monopoles  

E-print Network

This paper deals with static BPS monopoles in three dimensions which are periodic either in one direction (monopole chains) or two directions (monopole sheets). The Nahm construction of the simplest monopole chain is implemented numerically, and the resulting family of solutions described. For monopole sheets, the Nahm transform in the U(1) case is computed explicitly, and this leads to a description of the SU(2) monopole sheet which arises as a deformation of the embedded U(1) solution.

R. S. Ward

2005-05-28

177

Periodic Polymers  

NASA Astrophysics Data System (ADS)

Periodic polymers can be made by self assembly, directed self assembly and by photolithography. Such materials provide a versatile platform for 1, 2 and 3D periodic nano-micro scale composites with either dielectric or impedance contrast or both, and these can serve for example, as photonic and or phononic crystals for electromagnetic and elastic waves as well as mechanical frames/trusses. Compared to electromagnetic waves, elastic waves are both less complex (longitudinal modes in fluids) and more complex (longitudinal, transverse in-plane and transverse out-of-plane modes in solids). Engineering of the dispersion relation between wave frequency w and wave vector, k enables the opening of band gaps in the density of modes and detailed shaping of w(k). Band gaps can be opened by Bragg scattering, anti-crossing of bands and discrete shape resonances. Current interest is in our group focuses using design - modeling, fabrication and measurement of polymer-based periodic materials for applications as tunable optics and control of phonon flow. Several examples will be described including the design of structures for multispectral band gaps for elastic waves to alter the phonon density of states, the creation of block polymer and bicontinuous metal-carbon nanoframes for structures that are robust against ballistic projectiles and quasi-crystalline solid/fluid structures that can steer shock waves.

Thomas, Edwin

2013-03-01

178

GIS Day 2005  

NSDL National Science Digital Library

"GIS Day [November 16, 2005] is a grassroots event that formalizes the practice of geographic information systems (GIS) users and vendors of opening their doors to schools, businesses, and the general public to showcase real-world applications of this important technology." Visitors can find event information, a schedule of events, the latest news, and a registration form. Educators can find tips on how to host a successful GIS Day Event. Users can obtain links to discussion forums and GIS software. The website also offers links to GIS Day websites from around the world.

179

Culture of primary bovine chondrocytes on a continuously expanding surface inhibits dedifferentiation.  

PubMed

Expansion of autologous chondrocytes in vitro is used to generate adequate populations for cell-based therapies. However, standard (SD) culture methods cause loss of chondrocyte phenotype and dedifferentiation to fibroblast-like cells. Here, we use a novel surface expansion culture system in an effort to inhibit chondrocyte dedifferentiation. A highly elastic silicone rubber culture surface was continuously stretched over a 13-day period to 600% of its initial surface area. This maintained cells at a high density while limiting contact inhibition and reducing the need for passaging. Gene expression analysis, biochemical assays, and immunofluorescence microscopy of follow-on pellet cultures were used to characterize the results of continuous expansion (CE) culture versus SD cultures on rigid polystyrene. CE culture yielded cells with a more chondrocyte-like morphology and higher RNA-level expression of the chondrogenic markers collagen type II, aggrecan, and cartilage oligomeric matrix protein. Furthermore, the expression of collagen type I RNA and ?-smooth muscle actin protein were significantly reduced, indicating suppression of fibroblastic features. Pellet cultures from CE chondrocytes contained more sulphated glycosaminoglycan and collagen type II than pellets from SD culture. Additional control cultures on static (unexpanded) silicone (SS culture) indicated that benefits of CE culture were partially due to features of the culture surface itself and partially due to the reduced passaging which that surface enabled through CE. Chondrocytes grown in CE culture may, therefore, be a superior source for cell-based therapies. PMID:22738340

Rosenzweig, Derek H; Matmati, Mourad; Khayat, Ghazaleh; Chaudhry, Sidharth; Hinz, Boris; Quinn, Thomas M

2012-12-01

180

The Encyclopedia of Arkansas History & Culture  

NSDL National Science Digital Library

The mission of the Encyclopedia of Arkansas History & Culture is "to collect and disseminate information on all aspects of the state's history and culture and to provide a comprehensive reference work for historians, teachers, students and individuals for the purpose of promoting the study, understanding, and appreciation of Arkansas's heritage." First-time visitors should check out the This Day in Arkansas History feature, which provides easy access to the lore, culture, history, and geography of the state. Moving on, visitors can use the Browse Entries area to look around the material by category, type, time period, or race & ethnicity. Those persons looking for a bit of audio-visual inspiration will want to click on over to the Browse Media area. Here, they can find songs performed by sons and daughters of Arkansas (including the legendary Al Hibbler), maps, and video clips from films like "Emerson County Shaping Dream" and "Unhooking the Hookworm."

181

American Experience: Earth Days  

NSDL National Science Digital Library

In late 1969, Wisconsin Senator Gaylord Nelson hired Denis Hayes to organize a national teach-in day about the importance of protecting the environment for future generations. On April 22, 1970, the first Earth Day was held and over 20 million Americans participated via a variety of celebrations and demonstrations. This website is designed to be a companion to the American Experience documentary on the history of Earth Day, and it includes a teacher's guide, several special interviews, and the documentary in its entirety. The film was directed by Robert Stone, and it serves as "a poetic meditation on man's complex relationship with nature and an engaging history...of groundbreaking eco-activism." On the homepage, visitors should also take note of the photo gallery, the interactive timeline of the modern environmental movement, and a telling interview with the father of the "Green Revolution", Norman Borlaug. Visitors are also encouraged to share their own Earth Day memories on the site.

182

Career Day 2012  

NASA Video Gallery

More than 200 high school juniors and seniors with interests in science, technology, engineering and math met one-on-one with professionals at NASA's Langley Research Center during Career Day 2012,...

183

National History Day Prize Essays. Special Feature.  

ERIC Educational Resources Information Center

Describes National History Day, a year-long program using history to teach students research, analysis, and communication skills, in which students from grades 6-12 research topics related to an annual theme. Focuses on the 1998 contest with the theme of "Migration in History: Peoples, Cultures, Ideas." (CMK)

History Teacher, 1998

1998-01-01

184

Make a Splash Day  

NSDL National Science Digital Library

Project WET's Make a Splash Water Education Days provide plentiful learning opportunities for elementary students and preservice teachers. At these annual, all-day events held in nearly every state across the country each September, students participate in interactive activities and exhibits to learn about water resources and explore how human behaviors, such as development and recreation, can affect the quality of our country's waterways.

Rust, April; Jensen, Belinda; Coverdale, Greg

2004-07-01

185

Stennis Day Camper  

NASA Technical Reports Server (NTRS)

Sara Beth Casey, 5, proudly displays her artwork, 'Planets.' Sara Beth created the art as a student of Stennis Day Camp, a free camp for Stennis Space Center employees' children whose schools have not resumed since Hurricane Katrina hit the region on Aug. 29. The camp has registered nearly 200 children and averages 100 children each day. The camp will continue until all schools are back in session.

2005-01-01

186

Volunteer Day Student Voices  

E-print Network

Office, Room 318. The Next Trip Next weekend, we will be going to First Strike Paintball! IMPORTANT: Students under 18 should see Nate to pick up a paintball waiver which their parents will need to sign Nate, Melina, Tiffany, Daryl or Jessica. Manners and Culture Q: What is the history of St. Patrick

Pilyugin, Sergei S.

187

Time Change Volunteer Day  

E-print Network

at The Norman Garage Free! Bring your UF ID Swing Dancing (Bethany, Christian) Tuesday 5:00 Room TBA FREE Coffee Talk (Dan, Stef) Wednesday 7:00 Meet at Kay's Coffee (near Crisper's) Money for coffee Dodgeball Staff: April 1: Bethany Rowlings Happy Birthday, one and all! Manners and Culture Q: Why do people

Pilyugin, Sergei S.

188

Volunteer Day Countries Represented  

E-print Network

personnel who wants to participate, we very much would like to encourage you to come and join us the horses! Want to meet new American friends and UF students? Help serve lunch to the homeless with a UF Venezuela Manners and Culture Q: Why do people in the US prefer traveling by car rather than by airplane? A

Pilyugin, Sergei S.

189

Volunteer Day Tax Forms  

E-print Network

without homes at the St. Francis Homeless Shelter from 10am-1pm. Meet at Norman Garage at 9:45am. Wear! Steve wants us to let you know that the deadline for submissions for this semester will be on Friday! Happy Birthday, one and all! Manners and Culture Q: Why do people in the US shake hands rather than

Pilyugin, Sergei S.

190

Dairy Goat Day 2003Dairy Goat Day 2003Dairy Goat Day 2003Dairy Goat Day 2003 Sponsored by  

E-print Network

Dairy Goat Day 2003Dairy Goat Day 2003Dairy Goat Day 2003Dairy Goat Day 2003 Sponsored by and the California Dairy Herd Improvement Association DepartmentofAnimalScience UniversityofCalifornia One University of California Dairy Goat Day 2003Dairy Goat Day 2003Dairy Goat Day 2003Dairy Goat Day 2003 And

Schladow, S. Geoffrey

191

Activities of Ribulose Bisphosphate Carboxylase and Phosphoenolpyruvate Carboxylase and 14C-Bicarbonate Fixation during in Vitro Culture of Pinus radiata Cotyledons 1  

PubMed Central

The activities of ribulose bisphosphate carboxylase (RuBPC) and phosphoenolpyruvate carboxylase (PEPC), as indicators of autotrophic and nonautotrophic CO2 fixation, were measured in excised cotyledons of Pinus radiata D. Don cultured for 21 days under shoot-forming (SF) and nonshoot-forming (NSF) conditions. The activity of RuBPC was found to increase in both SF and NSF cultures during the initial 5 days of culture. However, it leveled off from day 5 to day 10 and subsequently began to decrease until the end of the culture period under the SF conditions. In contrast, in the NSF cultures, RuBPC activity increased until day 15, when it was twofold higher than the maximum activity found in the SF cultures. An increase in PEPC activity of about 2.5 times the level of activity in freshly excised cotyledons was observed during the initial 5 days of culture under the SF conditions. PEPC activity began to decline after day 5 until it reached the level of activity seen in NSF cotyledons by day 15. In contrast, the activity of PEPC did not show any significant increase during the initial 10 days of culture under the NSF conditions. The Km (phosphoenolpyruvate) of PEPC from SF cotyledons was about 35% higher than that of NSF cotyledons. Cotyledons from two culture periods (days 5 and 15) were incubated for 15 seconds with NaH14CO3. The label in the malate and asparatate fractions as a percentage of total 14C incorporation was 3 times higher in the SF cotyledons than in the NSF cotyledons. A higher incorporation of 14C into products of photosynthesis under the NSF conditions was also observed. PMID:16666206

Kumar, Prakash P.; Bender, Ludwig; Thorpe, Trevor A.

1988-01-01

192

Utility of surveillance blood cultures in patients undergoing hematopoietic stem cell transplantation  

PubMed Central

Background Surveillance blood cultures are often obtained in hematopoietic stem cell transplant (HSCT) patients for detection of bloodstream infection. The major aims of this retrospective cohort study were to determine the utility of the practice of obtaining surveillance blood cultures from asymptomatic patients during the first 100 post-transplant days and to determine if obtaining more than one positive blood culture helps in the diagnosis of bloodstream infection. Methods We conducted a 17-month retrospective analysis of all blood cultures obtained for patients admitted to the hospital for HSCT from January 2010 to June 2011. Each patient’s clinical course, vital signs, diagnostic testing, treatment, and response to treatment were reviewed. The association between number of positive blood cultures and the final diagnosis was analyzed. Results Blood culture results for 205 patients were reviewed. Cultures obtained when symptoms of infection were present (clinical cultures) accounted for 1,033 culture sets, whereas 2,474 culture sets were classified as surveillance cultures (no symptoms of infection were present). The total number of positive blood cultures was 185 sets (5.3% of cultures obtained) and accounted for 84 positive culture episodes. Incidence of infection in autologous, related allogeneic and unrelated allogeneic transplants was 8.3%, 20.0%, and 28.6% respectively. Coagulase-negative staphylococci were the most common organisms isolated. Based on our application of predefined criteria there were 29 infections and 55 episodes of positive blood cultures that were not infections. None of the patients who developed infection were diagnosed by surveillance blood cultures. None of the uninfected patients with positive blood cultures showed any clinical changes after receiving antibiotics. There was a significant difference between the incidence of BSI in the first and second 50-day periods post-HSCT. There was no association between the number of positive blood cultures and the final diagnosis. Conclusion Surveillance blood cultures in patients who have undergone HSCT do not identify bloodstream infections. The number of positive blood cultures was not helpful in determining which patients had infection. Patients are at higher risk of infection in the first 50 days post-transplant period. PMID:24999384

2014-01-01

193

Jupiter Night and Day  

NASA Technical Reports Server (NTRS)

Day and night side narrow angle images taken on January 1, 2001 illustrating storms visible on the day side which are the sources of visible lightning when viewed on the night side. The images have been enhanced in contrast. Note the two day-side occurrences of high clouds, in the upper and lower parts of the image, are coincident with lightning storms seen on the darkside. The storms occur at 34.5 degrees and 23.5 degrees North latitude, within one degree of the latitudes at which similar lightning features were detected by the Galileo spacecraft. The images were taken at different times. The storms' longitudinal separation changes from one image to the next because the winds carrying them blow at different speeds at the two latitudes.

2001-01-01

194

Australia National Sorry Day  

NSDL National Science Digital Library

"Sorry Day," held on May 26, 1998 in Australia, was an attempt on the part of some Australians to come to grips with the policy of forced removal of Aboriginal children that took place for 150 years until the 1970s. The National Sorry Day site is provided by the Reconciliation and Social Justice Project of the Australasian Legal Information Institute. The site contains background and an educational activities kit. The centerpiece, however, is full text access (in the Publications) to Bringing Them Home: Report of the National Inquiry into the Separation of Aboriginal and Torres Strait Islander Children from Their Families, which was tabled by the Australian Federal Parliament exactly one year before Sorry Day.

1998-01-01

195

Czech Culture in Prague: Architecture  

Microsoft Academic Search

Prague's main feature is that, out of many cultural treasures, it preserved its architectural culture and put it to practical use to present day. Particularly Prague has embraced a wealth of architectural styles from many ages. From the Romanesque, the Gothic culture of Czech's pinnacle age, Baroque, Neo Classicism, the Art Nouveau style buildings that concentrated in Prague at the

Kyuchin Kim

2003-01-01

196

A model system for long-term serum-free suspension organ culture of human fetal tissues: experiments on digits and skin from multiple body regions  

Microsoft Academic Search

We have optimized a suspension organ culture (SOC) system previously used to study human fetal skin in vitro. Eleven types of media were used to culture fetal digits and skin samples (ranging from 59-91 days of estimated gestational age) for periods of 3 or 4 weeks. The cultures were supplemented with 0%-10% bovine calf serum and exposed to 5%-45% oxygen

Joan Zeltinger; Karen A. Holbrook

1997-01-01

197

Enhanced Osteogenesis of Human Mesenchymal Stem Cells by Periodic Heat Shock in Self-Assembling Peptide Hydrogel  

PubMed Central

The mechanisms for the heat-induced osteogenesis are not completely known and the thermal regulation of human mesenchymal stem cell (hMSC) differentiation is not well studied. In this study, the direct effects of mild heat shock (HS) on the differentiation of hMSCs into osteoblasts in self-assembling peptide hydrogel and on tissue culture plates were investigated. hMSCs isolated from human bone marrow were seeded in conventional culture plates (two-dimensional [2D] culture) and on the surface of three-dimensional (3D) PuraMatrix peptide hydrogel (3D culture), followed by 1?h HS at 41°C once a week during osteogenic differentiation. Alkaline phosphatase (ALP) activity was enhanced in both 2D and 3D cultures via periodic HS at early stage of differentiation; meanwhile, HS significantly increased the calcium deposition at day 19 and 27 of differentiation in both 2D and 3D cultures. The periodic HS also upregulated osteo-specific genes, osterix (OSX) on day 11, osteopontin (OP) on day 19, and bone morphogenetic protein 2 (BMP2) on day 25 in 2D culture. In 3D PuraMatrix culture, the runt-related transcription factor 2 (Runx2) was upregulated by HS on day 25 of differentiation. The heat shock protein 70 (HSP70) was significantly upregulated by HS in differentiated hMSCs analyzed at 24?h after HS. These results demonstrate that HS induced an earlier differentiation of hMSCs and enhanced the maturation of osteoblasts differentiated from hMSCs. Therefore, mild HS treatment may be potentially used to enhance the bone regeneration using hMSCs. Our data will guide the design of in vivo heating protocols and enable further investigations in thermal treatments of MSC osteogenesis for bone tissue engineering. PMID:23072422

Chen, Jing; Shi, Zhong-Dong; Ji, Xinying; Morales, Jorge; Zhang, Jingwei; Kaur, Navneet

2013-01-01

198

NetDay  

NSDL National Science Digital Library

The mission of NetDay is "to connect every child to a brighter future by helping educators meet educational goals through the effective use of technology." The nonprofit organization provides direct service to 25 schools in five underserved communities and offers resources, guidance and skilled people to assist with technology integration in schools. The website posts issue articles, resource links and guides and serves as a forum to raise national awareness on topics related to the Internet. The organization's free online publication, NetDayCompass, includes more than 2,000 education technology resources for K-12 decision-makers. The site also features results from research, surveys, and analysis that NetDay conducts on issues that matter to the targeted communities. In 2003, the organization launched Speak Up Day, which is intended to "give a voice to all stakeholders in the educational community and to frame a new conversation around education and technology." Highlights from previous online surveys of teachers and students are posted on the site. Students have until November 12 to register their school and include their voice in the 2004 survey.

199

We Love Science Day.  

ERIC Educational Resources Information Center

Describes the goals and outcomes of the "We Love Science Day" programs that resulted from the inservice course, "Creative Integration of Science in Elementary Education" for Pennsylvania teachers. Provides samples of the hands-on activities that were offered to students, parents, and teachers. Includes a calendar of extracurricular science…

Kepler, Lynne

1986-01-01

200

Sun-Earth Day  

NASA Technical Reports Server (NTRS)

Michael Sandras, a member of the Pontchartrain Astronomical Society, explains his solar telescope to students of Second Street in Bay St. Louis, Hancock County and Nicholson elementary schools in StenniSphere's Millennium Hall on April 10. The students participated in several hands-on activities at Stennis Space Center's Sun-Earth Day celebration.

2007-01-01

201

Celebrating TeachingDay  

E-print Network

Literature, Media, and Communication Karie Davis-Nozemack Assistant Professor Scheller College of Business, and Communication Poster: Interweaving Personal and Social Histories Rachel Dean-Ruzicka, Literature, Media Concludes SCHEDULE #12;Celebrating TeachingDay 4 Brittain Fellows Joy Bracewell, Literature, Media

Gaucher, Eric

202

Macy's Thanksgiving Day Parade  

NSDL National Science Digital Library

Users taking a trip to watch the Macy's Thanksgiving Day Parade or maybe just planning to watch it from home may enjoy the parade site from NYCTourist. It features news on the parade, photos of balloons and the crowd from past parades, and a brief review of the parade's history with several historic photos.

203

Day Care: Nutrition.  

ERIC Educational Resources Information Center

This collection of 12 short, bilingual papers on nutrition and preschool children is part of a series of papers on various aspects of day care published by the Canadian Department of Health and Welfare. Each paper is presented in both English and French. Topics dealt with include an overview of children's nutritional needs; development of…

Foster, Florence P.; And Others

204

First Day of School  

ERIC Educational Resources Information Center

In this brief article, the author, a science teacher at F. C. Hammond Middle School in Alexandria, Virginia, describes how the setting up of a simple science experiment on the first day of school can get students excited about learning science. The experiment involves heating a small amount of water in a flask, then covering the opening of the…

Bort, Nancy

2004-01-01

205

Shady Day MEA  

NSDL National Science Digital Library

This Model Eliciting Activity (MEA) is written at a 5th grade level. The Shady Day MEA provides students with an engineering problem in which they must work as a team to design a procedure to select the best beach umbrella for certain situations.

Caudill, Kerri

2012-07-31

206

Welcome to Rock Day  

NSDL National Science Digital Library

Seeking to revitalize a unit on rocks, sand, and soil for first-graders, the authors created new hands-on lessons. These included testing the hardness of rocks, making models of the Earth, and sorting rocks. As a culminating activity, students participated in a series of Rock Day events that focused on the three different types of rocks and the rock cycle.

Benhart, Jeaneen; Varelas, Maria; National Science Teachers Association (NSTA)

2004-01-01

207

One Play a Day  

ERIC Educational Resources Information Center

Undergraduate theater students rarely get the chance to work on a major world premiere, but this year hundreds of them will. Currently, more than 70 colleges and universities are participating in "365 Days/365 Plays," an ambitious project from Pulitzer Prize-winning playwright Suzan-Lori Parks. Every week, as they mount their portion of this epic…

Blankenship, Mark

2007-01-01

208

International Children's Book Day  

E-print Network

International Children's Book Day April 2nd 2013 Folktales Storytelling & wORKSHOP By Barry Stewart Performing Arts Center 1080 SW 11th Street, Gainesville Peter Sís Award Winning Children's Book Author & Illustrator Peter Sís is an internationally acclaimed illustrator, author and the first childrens book artist

Watson, Craig A.

209

Fabulous Weather Day  

ERIC Educational Resources Information Center

Each year, first graders at Kensington Parkwood Elementary School in Kensington, Maryland, look forward to Fabulous Weather Day. Students learn how meteorologists collect data about the weather, how they study wind, temperature, precipitation, basic types/characteristics of clouds, and how they forecast. The project helps the students grow in…

Marshall, Candice; Mogil, H. Michael

2007-01-01

210

Period evolution in Mira variables  

NASA Astrophysics Data System (ADS)

We investigate a number of Mira variables which show evolution in their periods. Three different type of period changes are found: continuous evolution, sudden changes and meandering periods. Of the order of 1% of Miras show evidence for period changes, but unstable periods may be common among the longest period Miras. In the case of R Hya, the period change was accompanied by a dramatic change in mass-loss rate, consistent with the mass-loss formalism of Vassiliadis & Wood. Their formalism then predicts that the mass-loss rates of the longest period Miras (P>400 days) may fluctuate by a factor of 2-3 over time scales of a century.

Zijlstra, Albert A.; Matsuura, Mikako; Bedding, Timothy R.

2003-04-01

211

EMBRYONIC CHICK INTESTINE IN ORGAN CULTURE  

PubMed Central

Duodena from 20-day-old chick embryos can be maintained in large scale organ culture on specially designed stainless-steel grids in contact with serum-free medium for 48 h with excellent preservation of mucosal structure at both the light and electron microscope levels. Although mitotic rate was subnormal, several other factors attest to the essential viability of the cultured intestine: L-leucine incorporation into protein, as well as the synthesis of a specific vitamin D3-induced calcium-binding protein (CaBP), increased over a 48-h culture period, and the electropotential gradient across the intestine was maintained throughout the culture period as was a concentration gradient for calcium. The tissue responded to vitamin D3 in the medium by synthesizing the calcium-binding protein within 6 h and by exhibiting enhanced 45Ca uptake within 12–24 h. Concentrations of vitamin D3, or its 25-hydroxylated derivative, higher than necessary for CaBP induction, also increased the activity of alkaline phosphatase. The 1,25-dihydroxylated derivative of vitamin D3, at a level extremely potent in CaBP induction, did not stimulate alkaline phosphatase. Mucosal to serosal transport of 45Ca could also be measured in everted duodenal sacs, subsequent to culture under similar conditions, and was also increased by vitamin D3 in the medium. Other embryonic organs, esophagus, stomach, liver, pancreas, lung, skin, and muscle, did not produce CaBP in response to vitamin D3 in the culture medium. However, CaBP-synthesizing capacity was present in the entire intestinal tract, exclusive of the rectum. 59Fe and 32P uptake by cultured duodenum were also stimulated by vitamin D3. The system has proven quite useful in the study of the vitamin D-mediated calcium absorptive mechanism but should be applicable to the study of the absorption of other nutrients, drugs, hormones, etc., as well as other studies of intestinal function. PMID:4353639

Corradino, R. A.

1973-01-01

212

National Adult Day Services Association  

MedlinePLUS

THE NATIONAL VOICE FOR THE ADULT DAY SERVICE COMMUNITY NADSA advances the national development, recognition and use of adult day services. ... Day Services Tweets by @NADSA2 NADSA Video THE VOICES of Adult Day Services MEMBERS You've arrived ...

213

Flight Day 2 Highlights  

NASA Technical Reports Server (NTRS)

The STS-107 second flight day begins with a shot of the Spacehab Research Double Module. Live presentations of experiments underway inside of the Spacehab Module are presented. Six experiments are shown. As part of the Space Technology and Research Student Payload, students from Australia, China, Israel, Japan, New York, and Liechtenstein are studying the effect that microgravity has on ants, spiders, silkworms, fish, bees, granular materials, and crystals. Mission Specialist Kalpana Chawla is seen working with the zeolite crystal growth experiment.

2003-01-01

214

President Clinton: Final Days  

NSDL National Science Digital Library

Available at Pocketmovies.net, this six-minute video is a humorous and clever peek into the twilight days at the Clinton White House. Shot for the Annual White House Correspondents's Dinner, the "home movie" depicts a lonely President Clinton taking care of the yard work, doing the laundry, and other mundane tasks. The movie is an entertaining diversion and demonstrates that even the "leader of the free world" can have a (self-deprecating) sense of humor.

215

Arbor Day Foundation  

NSDL National Science Digital Library

Arbor Day was first observed in 1872, and the Arbor Day Foundation was founded in 1972 in Nebraska. The Arbor Day website contains a trove of information for visitors to peruse, make plans around, and learn from. The "Trees" section of the website includes "What Tree is That?", an online guide for tree identification; a "Tree Guide", that covers more than 200 different species of trees; and a quiz called "The Right Tree in the Right Place", about how and why to first make a simple plan, considering size and shape, when planting trees around a house. The "Programs" section of the website is an excellent resource for visitors such as teachers, parents and students. "Nature Explore" helps connect kids with nature via the "Resource Guide", which contains "field-tested resources developed to bring nature into children's daily learning in sustainable, significant, positive and joyful ways." Interested visitors can use the link entitled "Request a Resource Guide", to get a free copy. "Nature Explore Classroom Certification" links teachers to the certification process and examples of certified classrooms and classrooms in-progress.

2011-01-21

216

What do they do all day? Comprehensive evaluation of a full-day kindergarten  

Microsoft Academic Search

A comprehensive evaluation of a newly-implemented full-day kindergarten program was carried out over a 2-year period. The evaluation included documentation of program processes and outcomes, viewed from multiple perspectives, using both quantitative and qualitative methods. When compared with children in half-day kindergarten classrooms, children in full-day classrooms spent more time (in absolute and relative terms) engaged in child-initiated activities (especially

James Elicker; Sangeeta Mathur

1997-01-01

217

Hastening effect of intercalated long days on short-day induction in Impatiens balsamina, a qualitative short day plant.  

PubMed

The inductive effect of short-day (SD) cycles on floral-bud initiation in Impatiens balsamina was enhanced and the minimum requirement for SD cycles for flowering reduced by intercalated long days (LDs). Thus, floral buds developed into flowers with only 4 SD cycles in plants receiving them individually or in pairs alternating with LDs, but failed to develop in those receiving 4 SD sycles consecutively. The number of flowering plants increased while the periods to floral-bud initiation and flowering, calculated from the day of completion of 4 and 8 SD cycles, respectively, decreased with an increase in the number of intercalated LDs. PMID:24504390

Toky, K L; Nanda, K K

1969-06-01

218

Good Meals Every Day.  

E-print Network

with a reducing period. The general meal plan in this new diet is: 1. Breakfast Grapefruit (% medium) or orange juice (% CUP) Eggs (2, cooked any way) Bread (1 slice) Butter (% tablespoon) Milk (3/4 CUP) 2. Lunch or Supper Meat ($41 pound... and Scalloped Potatoes substituted comes from String Beans the same food group. Cabbage and Green Pepper Slaw Whole Wheat Bread Butter or Margarine Meals Plum Cobbler (Left over from dinner) Milk SUNDAY Breakfast Orange and Grapefruit Juice Baked Eggs...

Cox, Maeona; Reasonover, Frances; Harris, Jimmie Nell; Mason, Louise

1955-01-01

219

The culture of human embryonic stem cells in microchannel perfusion bioreactors  

NASA Astrophysics Data System (ADS)

The culture of human Embryonic Stem (ES) cells in microchannel bioreactors can be highly beneficial for ES cell biology studies and ES tissue engineering applications. In the present study we examine the use of Human Foreskin Fibroblasts (HFF) cells as feeder cells for human ES culture in a microchannel perfusion bioreactor. PDMS microchannels (depth:130 micron) were fabricated using conventional soft-lithography techniques. The channels were sterilized, coated with a human fibronectin solution and seeded with cells. Following a period of static incubation, culture medium was perfused through the channels at various flow rates and cell growth was monitored throughout the culture process. Mass transport and fluid mechanics models were used to evaluate the culture conditions (shear stress, oxygen levels within the micro-bioreactor as a function of the medium flow rate. The conditions for successful long-term culture (>7 days) of HFF under flow were established. Experiments with human embryonic stem cells cultured in microchannels show that the conditions essential to co-culture human ES cell on HFF cells under perfusion differ from the conditions necessary for HFF cell culture. Human ES cells were found to be highly sensitive to flow and culture conditions and did not grow under flow rates which were suitable for HFF long-term culture. Successful culture of undifferentiated human ES cell colonies in a perfusion micro-bioreactor is a basic step towards utilizing microfluidic techniques to explore stem cell biology.

Korin, Natanel; Bransky, Avishay; Dinnar, Uri; Levenberg, Shulamit

2007-12-01

220

World Youth Day '93.  

PubMed

Segments of Pope John Paul II's speeches in Colorado for World Youth Day are presented. Predicting deep suffering, misfortune, and ruinous trouble for youth who do not evangelize, the highest representative of the Catholic Church reaffirmed oft stated views against birth control, abortion, euthanasia, sex outside of marriage, and drug and alcohol abuse. He further expressed his belief that a strong moral crisis in developing countries is bringing significant woe to youth and called for adherence to family values and unity within the Church. The serious moral crisis affecting society may, however, be overcome by embracing the "high moral vision" offered by Jesus Christ and the Catholic Church. PMID:12318434

Likoudis, P

1993-01-01

221

78 FR 62339 - Blind Americans Equality Day, 2013  

Federal Register 2010, 2011, 2012, 2013

...9042 of October 11, 2013 Blind Americans Equality Day, 2013 By the President...played an important role in American life and culture, and today we recommit to our...blind and visually impaired Americans imagine and pursue ideas...

2013-10-18

222

Safeguards Culture  

SciTech Connect

The concepts of nuclear safety and security culture are well established; however, a common understanding of safeguards culture is not internationally recognized. Supported by the National Nuclear Security Administration, the authors prepared this report, an analysis of the concept of safeguards culture, and gauged its value to the safeguards community. The authors explored distinctions between safeguards culture, safeguards compliance, and safeguards performance, and evaluated synergies and differences between safeguards culture and safety/security culture. The report concludes with suggested next steps.

Frazar, Sarah L.; Mladineo, Stephen V.

2012-07-01

223

Round the World in 18 Days: Science Connecting Cultures  

ERIC Educational Resources Information Center

The autumn 2002 term at the Eden Project was a roller-coaster ride of multicultural celebration and a fantastic lesson in the power of young people to take practical action in addressing issues that affect their communities on a local and global scale. From Cornwall to India--global links provide valuable insights and opportunities for active…

Hodgson, Gill

2003-01-01

224

The First Day  

NSDL National Science Digital Library

There are many ways to start the school year, but icebreakers can be very successful. They help create a comfortable, lively, and active atmosphere students will come to expect and enjoy when they enter. Don't limit yourself to using these types of activities only at the beginning of the year. Use them also to rejuvenate after a long break, after a long, difficult unit has been covered, or before beginning a new unit. Students will understand the reasons for group work, perk up when it comes time to problem solve, and be able to help each other "see" other methods or answers to problems. And, when your students go home after those first days of school, your class will be the one they talk about at the dinner table. This free chapter also includes the Table of Contents and Introduction for this book.

Swango, C. J.; Steward, Sally B.

2003-01-01

225

Cosmos: The Integrated Day Comes to College.  

ERIC Educational Resources Information Center

Four full days of classroom instruction, devoted to the modeling of effective curriculum integration, were designed for preservice elementary school teachers. The unit was the result of a conviction on the part of teacher educators that children learn best when learning is not separated into forty-minute periods of math, social studies, language…

Kutz, Ronald E.; And Others

226

The culture of care within psychiatric services: tackling inequalities and improving clinical and organisational capabilities  

PubMed Central

Introduction Cultural Consultation is a clinical process that emerged from anthropological critiques of mental healthcare. It includes attention to therapeutic communication, research observations and research methods that capture cultural practices and narratives in mental healthcare. This essay describes the work of a Cultural Consultation Service (ToCCS) that improves service user outcomes by offering cultural consultation to mental health practitioners. The setting is a psychiatric service with complex and challenging work located in an ethnically diverse inner city urban area. Following a period of 18 months of cultural consultation, we gather the dominant narratives that emerged during our evaluation of our service. Results These narratives highlight how culture is conceptualized and acted upon in the day-to-day practices of individual health and social care professionals, specialist psychiatric teams and in care systems. The findings reveal common narratives and themes about culture, ethnicity, race and their perceived place and meaningfulness in clinical care. These narratives express underlying assumptions and covert rules for managing, and sometimes negating, dilemmas and difficulties when considering “culture” in the presentation and expression of mental distress. The narratives reveal an overall “culture of understanding cultural issues” and specific “cultures of care”. These emerged as necessary foci of intervention to improve service user outcomes. Conclusion Understanding the cultures of care showed that clinical and managerial over-structuring of care prioritises organisational proficiency, but it leads to inflexibility. Consequently, the care provided is less personalised and less accommodating of cultural issues, therefore, professionals are unable to see or consider cultural influences in recovery. PMID:23020856

2012-01-01

227

Post-translational control of collagen fibrillogenesis in mineralizing cultures of chick osteoblasts  

NASA Technical Reports Server (NTRS)

Cultured osteoblasts from chick embryo calvaria were used as a model system to investigate the post-translational extracellular mechanisms controlling the macroassembly of collagen fibrils. The results of these studies demonstrated that cultured osteoblasts secreted a collagenous extracellular matrix that assembled and mineralized in a defined temporal and spatial sequence. The assembly of collagen occurred in a polarized fashion, such that successive orthogonal arrays of fibrils formed between successive cell layers proceeding from the culture surface toward the media. Mineralization followed in the same manner, being observed first in the deepest and oldest fibril layers. Collagen fibrillogenesis, the kinetics of cross-link formation, and collagen stability in the extracellular matrix of the cultures were examined over a 30 day culture period. Between days 8 and 12 in culture, collagen fibril diameters increased from < 30 nm to an average of 30-45 nm. Thereafter, diameters ranged in size from 20 to 200 nm. Quantitation of the collagen cross-linking residues, hydroxylysyl pyridinoline (HP) and lysyl pyridinoline (LP), showed that these mature cross-links increased from undetectable levels to concentrations found in normal chick bone. Analysis of the kinetics of their formation by pulse-chase labeling the cultures with [3H]lysine showed a doubling time of approximately 5 days. The relationships between cross-link formation, fibrillogenesis, and collagen stability were examined in cultures treated with beta-aminopropionitrile (beta-APN), a potent inhibitor of lysyl oxidase and cross-link formation. In beta-APN-treated cultures, total collagen synthesis was increased twofold, with no change in mRNA levels for type I collagen, whereas the amount of collagen accumulated in the cell layer was decreased by 50% and mineral deposition was reduced. The rate of collagen retention in the matrix was assessed by pulse-chase analysis of [3H]proline over a 16 day period in control and beta-APN-treated cultures. In control cultures, about 20% of the labeled collagen was lost from the cell layers over a 16 day period compared with > 80% in the presence of beta-APN. The beta-APN-treated cultures also showed a wider diversity of fibril diameters with a median in the > 45-60 nm range. In summary, these data suggest that cross-linking and assembly of collagen fibrils secreted by osteoblasts in vitro occur in a fashion similar to that found in vivo. The rate of cross-link formation is relatively constant and may be correlated with increasing collagen mass.(ABSTRACT TRUNCATED AT 400 WORDS).

Gerstenfeld, L. C.; Riva, A.; Hodgens, K.; Eyre, D. R.; Landis, W. J.

1993-01-01

228

Day Care and Public Policy.  

ERIC Educational Resources Information Center

Two types of information that should condition federal decisions about day care are summarized. These include data concerning the supply and demand for day care and the effects of day care on children's development. (Author)

Haskins, Ron

1979-01-01

229

Should You Weigh Every Day?  

MedlinePLUS

... sense: By seeing what the scale reads each day you have a better chance of catching small ... dietary intake and physical activity, your weight fluctuates day-to-day. You may interpret a one-pound ...

230

Ion Levels and Membrane Potential in Chick Heart Tissue and Cultured Cells  

PubMed Central

Intracellular concentrations of sodium and potassium as well as resting potentials and overshoots have been determined in heart tissue from chick embryos aged 2–18 days. Intracellular potassium declined from 167 mM at day 2 to 117–119 mM at days 14–18. Intracellular sodium remained nearly constant at 30–35 mM during the same period. The mean resting potential increased from -61.8 mV at day 3 to about -80 mV at days 14–18. The mean overshoot during the same period increased from 12 to 30 mV. PNa/PK calculated from the ion data and resting potentials declined from 0.08 at day 3 to 0.01 at days 14–18. Thus, the development of embryonic chick heart during days 2–14 is characterized by a declining intracellular potassium concentration and an increasing resting potential and overshoot. Heart cells from 7- to 8-day embryos, cultured either in monolayer or reassociated into aggregates, were compared with intact tissue of the same age. The intracellular concentrations of sodium and potassium were similar in the three preparations and cultured cells responded to incubation in low potassium medium or treatment with ouabain in a manner similar to that of intact tissue. Resting potentials and overshoots were also similar in the three preparations. PMID:4683099

McDonald, Terence F.; DeHaan, Robert L.

1973-01-01

231

Valentine's Day and Chocolate  

NSDL National Science Digital Library

While the exact origins of Valentine's Day are often disputed, the link between chocolate and the modern incarnation of this particular holiday are undeniable. Recent data released in a report by the business information group Datamonitor revealed that the global consumption of chocolate totaled approximately $42.2 billion worth of chocolate-based consumable goods. It will not come as a surprise to anyone who has visited the British Isles to learn that out of the $42.2 billion, Britons spent $19.2 billion, and made almost one in three chocolate purchases, trumping all of the world's nations. The report from Datamonitor also noted that tastes in chocolate vary widely across Europe, noting that, "The French prefer simplicity and purity of taste, without additional flavors and with little sugar, while Italian tastes are geared toward the more indulgent and sophisticated end of the market." Additionally, the report also indicates that the United States continues to dominate the global chocolate confectionary market, with Americans spending $2.4 billion on boxed chocolates alone in 2001.The first link is to the recent report on global chocolate sales and consumption released by the Datamonitor group. The second link leads to a well-thought site from Exploratorium Magazine, which features interactive essays on chocolate production, the potential health benefits of chocolate, and a visit to a "chocolate party" in the heart of the Amazon. The third link will take visitors to a site that deals with the history of chocolate, beginning with the first use of chocolate (as a drink) in 750 AD. The fourth link takes visitors to a site featuring inventive and fun ways to use chocolate in recipes, such as those for chocolate banana bread and chocolate peanut butter pie. The fifth link leads to a site from ABC News.com that explores various contested origins of Valentine's Day over the past fifteen hundred years. The final link takes visitors to a piece written by Polly Curtis of The Guardian, writing on the various scientific studies that investigate various romantic activities, such as which direction do people tend to kiss or how to find the perfect partner.

Grinnell, Max

2003-01-01

232

The following paper has been published as "Sculpture. a. Ancient Period", in: Fine Arts and Crafts, ed. Prof. LALA RUKH SELIM, volume of the "Cultural Survey of Bangladesh Project", ed. by the Asiatic Society  

E-print Network

, ed. Prof. LALA RUKH SELIM, volume of the "Cultural Survey of Bangladesh Project", ed. by the Asiatic Society of Bangladesh, 2007, pp. 91-109. 1 The Sculpture of Bengal, a stylistic History from the 2nd c. BC. Terracotta D. Wood carving Bibliography Introduction Bengal comprehends a vast area which includes Bangladesh

Boyer, Edmond

233

Subacute (90 days) oral toxicity studies of Kombucha tea.  

PubMed

Kombucha tea (KT) is a popular health beverage and is used as an alternative therapy. KT is prepared by placing the kombucha culture in solution of tea and sugar and allowing to ferment. The inoculum is a fungus consisting of symbiotic colony of yeast and bacteria. KT is consumed in several countries and is believed to have prophylactic and therapeutic benefits in a wide variety of ailments, viz., intestinal disorders, arthritis, ageing and stimulation of immunological system. Though KT is used in several parts of the world its beneficial effects and adverse effects have not been scientifically evaluated. Since there are no animal toxicological data on KT, subacute oral toxicity study was carried out. Five groups of rats were maintained: (a) control group given tap water orally, (b) KT given 2 ml/kg orally, (c) plain tea (PT) given 2 ml/kg orally, (d) KT given in drinking water, 1% (v/v) and (e) PT given in drinking water, 1% (v/v). The rats were given this treatment daily for a period of 90 days. Weekly records of weight, feed intake, water intake and general behaviour were monitored. There was no significant difference in the growth of the animals as evidenced by the progressive body weight change. The organ to body weight ratio and histological evaluation did not show any toxic signs. The haematological and biochemical variables were within the clinical limits. The study indicates that rats fed KT for 90 days showed no toxic effects. PMID:11351863

Vijayaraghavan, R; Singh, M; Rao, P V; Bhattacharya, R; Kumar, P; Sugendran, K; Kumar, O; Pant, S C; Singh, R

2000-12-01

234

On periodicity of solar wind phenomena  

NASA Technical Reports Server (NTRS)

We have investigated the rate of occurrence of solar wind phenomena observed between 1972-1984 using power spectrum analysis. The data have been taken from the high speed solar wind (HSSW) streams catalogue published by Mavromichalaki et al. (1988). The power spectrum analysis of HSSW events indicate that HSSW stream events have a periodicity of 9 days. This periodicity of HSSW events is 1/3 of the 27 days period of coronal holes which are the major source of solar wind events. In our opinion the 9 days period may be the energy build up time to produce the HSSW stream events.

Verma, V. K.; Joshi, G. C.

1995-01-01

235

Object of the Day  

NSDL National Science Digital Library

The Smithsonian Cooper-Hewitt Design Museum is closed for renovation until 2014. Until then, visit this website to "Discover a different object from the Museum's collection every day of the week!" Items range from a 1938 catalog of linoleum and cork flooring, The Armstrong Pattern Book, to scratch and sniff wallpaper designed by Michael Angelo and produced by Flavor Paper in 2007. Information about each object is presented blog-post style, with a short essay, images, and tags that link to related information. For example, the entry for Saturday June 22, 2013, titled Two Rooks, is about a a ceramic tile made at Rookwood Pottery in Cincinnati, Ohio between 1903 and 1913. There a short essay about the tile by Cynthia E. Smith, one of the curators, and clicking the author's name retrieves all of her posts. Other tags include the subject area Arts and Crafts, the style of the piece, and Cincinnati, where it was made. There's also a link to click through to the full collection record for the tile, with the object's location, acquisition information, and color palette.

236

Transforming growth factors induce markers of neoplasia in cultured adult rat bladder.  

PubMed

Transforming growth factors alpha and beta (TGF-alpha and TGF-beta) isolated from normal mouse kidney induced gross morphological changes in rat urothelial cells maintained in organ culture. These morphological effects are similar to those observed after long-term treatment of rat bladder organ cultures with the carcinogen N-methyl-N-nitrosourea (MNU) or the promoting agents sodium saccharin and sodium cyclamate. Cultures were treated continuously with 5-25 micrograms/ml of Bio-Gel P-30-purified TGF containing both TGF-alpha and TGF-beta between days 1 and 14 in culture, or with 5 micrograms/ml from days 28 to 42. Controls received 1-10 ng/ml epidermal growth factor (EGF) or control medium. Untreated controls retained a normal urothelium throughout the period of study. Mature superficial-type cells covered most of the surface and less mature forms appeared on the cut sides and damaged areas where cells followed the normal pattern of urothelial differentiation. EGF at 5 and 10 ng/ml caused necrosis of the entire urothelium but at 1 and 2 ng/ml had minimal effects on histology and scanning electron microscopical appearance up to 14 days in culture. Crude P-30-purified TGFs induced a series of dose-related changes from 4 days, which were maximal at 8 days and persisted or decreased between 8 and 14 days. These included hyperplasia, loss of epithelial polarity, hyperchromasia and elongation of basal cells between the overlying cell layers to reach the culture surface. Scanning electron microscopy showed the appearance at the culture surface of immature cells with gross surface abnormalities including large numbers of blebs, stubby microvilli and long pleomorphic microvilli. Immature cells on the sides of the culture and in damaged areas developed similar features. At crude TGF doses of 10 micrograms/ml many superficial cells were rounded, some became cystic and epithelial necrosis was observed. Cultures treated with h.p.l.c.-purified TGF-beta at 80 ng/ml in the presence of 2 ng/ml EGF showed similar effects to those treated with 5 micrograms/ml P-30-purified TGF. Fully differentiated cultures treated from 28 to 42 days with crude TGF, showed changes similar to those seen in early cultures. However, histological changes, particularly basal cell elongation were more widespread and there was an abnormal development of globular processes between the membrane ridges of mature superficial cells. Neither crude TGF nor EGF stimulated growth in soft agar of isolated epithelial cells from freshly killed rats or organ cultures pretreated for 7 days with EGF or TGF.(ABSTRACT TRUNCATED AT 400 WORDS) PMID:3872740

Knowles, M A; Hicks, R M; Dave, H; Harvey, A E; Roberts, A B; Sporn, M B

1985-04-01

237

A critical period for functional vestibular development in zebrafish  

NASA Technical Reports Server (NTRS)

We have determined a critical period for vestibular development in zebrafish by using a bioreactor designed by NASA to simulate microgravity for cells in culture. A critical period is defined as the briefest period of time during development when stimulus deprivation results in long lasting or permanent sensory deficits. Zebrafish eggs were collected within 3 hours of being laid and fertilized. In experiment 1, eggs were placed in the bioreactor at 3, 24, 30, 36, 48, or 72 hours postfertilization (hPF) and maintained in the bioreactor until 96 hPF. In experiment 2, eggs were placed in the bioreactor immediately after they were collected and maintained in the bioreactor until 24, 36, 48, 60, 66, 72, or 96 hPF. Beginning at 96 hPF, all larvae had their vestibulo-ocular reflexes (VOR) evaluated once each day for 5 days. Only larvae that hatched from eggs that were placed in the bioreactor before 30 hPF in experiment 1 or removed from the bioreactor later than 66 hPF in experiment 2 had VOR deficits that persisted for at least 5 days. These data suggest a critical period for vestibular development in the zebrafish that begins before 30 hPF and ends after 66 hPF. To confirm this, zebrafish eggs were placed in the bioreactor at 24 hPF and removed at 72 hPF. VORs were evaluated in these larvae once each day for 5 days beginning at 96 hPF. These larvae had VOR deficits that persisted for at least 5 days. In addition, larvae that had been maintained in the bioreactor from 24 to 66 hPF or from 30 to 72 hPF, had only temporary VOR deficits. In a final experiment, zebrafish eggs were placed in the bioreactor at 3 hPF and removed at 96 hPF but the bioreactor was turned off from 24 hPF to 72 hPF. These larvae had normal VORs when they were removed from the bioreactor at 96 hPF. Taken as a whole, these data support the idea that there is a critical period for functional maturation of the zebrafish vestibular system. The developmental period identified includes the timeframe during which the vestibular primary afferent neurons are born, innervate their central and peripheral targets, and remodel their central projections. Copyright 2002 Wiley-Liss, Inc.

Moorman, Stephen J.; Cordova, Rodolfo; Davies, Sarah A.

2002-01-01

238

Detection of Brucella melitensis by BACTEC NR660 blood culture system.  

PubMed Central

Data on the performance of modern blood culture systems for the detection of Brucella spp. are insufficient. To evaluate the performance of the BACTEC NR660 blood culture system for the detection of Brucella melitensis within the routine 1-week blood culture protocol, a prospective 24-month study was conducted in an area endemic for B. melitensis in southern Israel. Blood samples obtained from patients with suspected brucellosis were monitored and blindly subcultured once per week for 4 weeks, and the fraction of blood cultures positive for B. melitensis detected by the BACTEC NR660 instrument within the first week was determined. During the study period, a total of 373 blood cultures were obtained from patients in whom brucellosis was suspected, and 27 (7.2%) of them, drawn from 21 different patients, were positive for B. melitensis. Twenty-one (78.8%) of these positive cultures were detected by the BACTEC instrument within 7 days, and six positive cultures were detected by subculture after 2 or 3 weeks of incubation. It is concluded that the BACTEC NR660 blood culture system detects the majority of B. melitensis isolates within the routine 1-week blood culture schedule. To maximize the recovery of the organism, however, prolonged incubation and periodic performance of blind subcultures are still required. PMID:7989539

Yagupsky, P

1994-01-01

239

The Effects of Fibroblast Co-Culture and Activin A on in vitro Growth of Mouse Preantral Follicles  

PubMed Central

Background: This study was conducted to evaluate fibroblast co-culture and Activin A on in vitro maturation and fertilization of mouse preantral follicles. Methods: The ovaries from 12-14-day-old mice were dissected, and 120-150 ?m preantral follicles were cultured individually in ?-MEM as based medium for 12 days. A total number of 456 follicles were cultured in four conditions: (i) base medium as control group (n = 113), (ii) base medium supplemented with 30 ng/ml Activin A (n = 115), (iii) base medium co-cultured with mouse embryonic fibroblast (n = 113), and (iv) base medium supplemented with 30 ng/ml Activin A and co-cultured with fibroblast (n = 115). Rate of growth, survivability, antrum formation, ovulation, embryonic development and steroid production were evaluated. Analysis of Variance and Duncan test were applied for analyzing. Results: Both co-culture and co-culture + Activin A groups showed significant difference (P<0.05) in growth (on days 4, 6, and 8 of culture period) and survival rates. However, there was no significant difference in antrum formation, ovulation rate, and embryonic development of ovulated oocytes. There were significant differences (P<0.05) in the estradiol production on days 8, 10, and 12 between co-culture + Activin A and the control group. Progesterone production also was significant (P<0.05) in co-culture + Activin A group on days 6, 8, 10, and 12 compared to control group. Conclusion: Fibroblast co-culture and Activin A promoted growth and survivability of preantral follicles. However, simultaneous use of them was more efficient. PMID:24375163

Karimpour Malekshah, Abbasali; Heidari, Mahmoud; Parivar, Kazem; Azami, Nasrin Sadat

2014-01-01

240

Family Day Care Training Curriculum.  

ERIC Educational Resources Information Center

California's Family Day Care Training Program was designed to recruit and train in 7 weeks, Lao, Vietnamese, and Chinese refugees to establish their own state-licensed, family day care homes. Topics in the program's curriculum include an introduction to family day care, state licenses for family day care, state licensing requirements for family…

Nakatsu, Gail

241

Group culture of human zygotes is superior to individual culture in terms of blastulation, implantation and life birth  

Microsoft Academic Search

This prospective study tested a new type of culture dish for the effects of individual culture and autotrophic factors. Within a 6-month period, 72 patients with nine or more fertilized eggs were enrolled in this prospective evaluation. Their 936 zygotes were split into three subgroups (individual culture, individual culture with contact to neighbours, group culture). All concepti were cultured in

T. Ebner; O. Shebl; M. Moser; R. B. Mayer; W. Arzt; G. Tews

2010-01-01

242

Optimization of Adventitious Root Culture for Production of Biomass and Secondary Metabolites in Prunella vulgaris L.  

PubMed

Adventitious root cultures of Prunella vulgaris L. were established in shaking flask system for the production of biomass and secondary metabolites. Adventitious root cultures were induced from callus cultures obtained from leaf explants on solid Murashige and Skoog (MS) medium containing combination of 6-benzyladenine (BA; 1.0 mg l(-1)) and naphthalene acetic acid (NAA; 1.5 mg l(-1)). Thereafter, 0.49 g inoculum was transferred to liquid MS medium supplemented with different concentrations of NAA (0.5-2.0 mg l(-1)). Growth kinetics of adventitious roots was recorded with an interval of 7 days for 49 days period. Highest biomass accumulation (2.13 g/l) was observed in liquid medium containing 1.0 mg l(-1) NAA after 21 days of inoculation. However, other concentrations of NAA also showed similar accumulation pattern but the biomass gradually decreases after 49 days of inoculation. Adventitious roots were collected and dried for investigation of total phenolics (TP), total flavonoids (TF), and antioxidant activities. Higher TPC (0.995 GAE mg/g-DRB) and TFC (6.615 RE mg/g-DRB) were observed in 0.5 mg l(-1) NAA treated cultures. In contrast, higher antioxidant activity (83.53 %) was observed 1.5 mg l(-1) NAA treated cultures. These results are helpful in up scaling of root cultures into bioreactor for secondary metabolites production. PMID:25163888

Fazal, Hina; Abbasi, Bilal Haider; Ahmad, Nisar

2014-11-01

243

Fecal contamination in child day care centers: cloth vs paper diapers.  

PubMed Central

OBJECTIVES. Cloth diapers with front closure and all-in-one design were compared with paper diapers containing absorbent gel material for their influence on fecal contamination of the environment in licensed child day care centers. METHODS. One infant room and two toddler rooms in each of four day care centers were monitored for the presence of fecal bacteria. Microbial samples were taken from the play/sleep area, the diaper-changing area, and the hands of the caregivers and the children. Sampling was done twice weekly for two 4-week periods. Each center used either cloth or paper diapers during the first period, changing to the other diaper type during the second period. RESULTS. A total of 1722 samples were cultured, 881 during the first 4 weeks and 841 during the second 4 weeks. The frequency of isolation of fecal organisms ranged from a low of 12% of the total bacteria isolates at a center using cloth diapers, to highs of 46% and 45%, respectively, at a center using first paper and then cloth diapers. Sink faucets and the hands of the caregivers and the children were often contaminated. CONCLUSIONS. Analysis of the results of comparisons between cloth and paper diapers showed no significant difference in the frequency (F = .380, P < .535) or the intensity of fecal contamination in child day care centers. Images FIGURE 1 FIGURE 2 PMID:7832258

Holaday, B; Waugh, G; Moukaddem, V E; West, J; Harshman, S

1995-01-01

244

Early Adolescence: Celestial Meetings - Synodic Periods.  

ERIC Educational Resources Information Center

Rather than memorize numbers for sidereal periods of planets (time to orbit the sun), students can learn to determine these times through simple calculations. Comparison of a planet's synodic period to earth's year of 365 days is made, then multiplication to derive a full circle of 360 degrees establishes the sidereal period. (DH)

Science and Children, 1985

1985-01-01

245

D. Reporting Periods Newentrantreports: Thereportingperiodisthepreceding  

E-print Network

for less than 61 days during that twelve-month period. (All reappointed or redesignated SGEs file reportsGovernment. Itprovidesamechanismfordeterminingactualorpotential conflicts between your public responsibilities and your private interests and activities to assuming the new position. (SGEs must file new reports upon each reappointment or redesignation

246

Ear drainage culture  

MedlinePLUS

... a laboratory and placed on a special dish (culture media). The lab team checks the dish every day to see if bacteria, fungi, or viruses have grown. Further tests may be done to specifically identify any substances and determine the best treatment.

247

Culture Machine  

NSDL National Science Digital Library

Culture Machine is a new, refereed, electronic journal encompassing cultural studies and cultural theory. The international editorial board of the interactive journal aims to "generat[e] research in culture and theory" by promoting and publishing "the most provocative of new work." The theme of the inaugural issue is Taking Risks with the Future. Content includes articles such as Life After Death of the Text by Johan Fornas, Cultural Studies in the Clouds: Mourning for Detail by Tadeusz Slawek, and The Future States of Politics by Kenneth Surin. Culture Machine is hosted by the University of Teesside, England.

248

Cultural Neuroscience  

PubMed Central

Cultural neuroscience issues from the apparently incompatible combination of neuroscience and cultural psychology. A brief literature sampling suggests, instead, several preliminary topics that demonstrate proof of possibilities: cultural differences in both lower-level processes (e.g. perception, number representation) and higher-order processes (e.g. inferring others’ emotions, contemplating the self) are beginning to shed new light on both culture and cognition. Candidates for future cultural neuroscience research include cultural variations in the default (resting) network, which may be social; regulation and inhibition of feelings, thoughts, and actions; prejudice and dehumanization; and neural signatures of fundamental warmth and competence judgments. PMID:23874143

Ames, Daniel L.; Fiske, Susan T.

2013-01-01

249

Preparation of Triple-Negative Breast Cancer Vaccine through Electrofusion with Day-3 Dendritic Cells  

PubMed Central

Dendritic cells (DCs) are professional antigen-presenting cells (APCs) in human immune system. DC-based tumor vaccine has met with some success in specific malignancies, inclusive of breast cancer. In this study, we electrofused MDA-MB-231 breast cancer cell line with day-3 DCs derived from peripheral blood monocytes, and explored the biological characteristics of fusion vaccine and its anti-tumor effects in vitro. Day-3 mature DCs were generated from day-2 immature DCs by adding cocktails composed of TNF-?, IL-1?, IL-6 and PEG2. Day-3 mature DCs were identified and electofused with breast cancer cells to generate fusion vaccine. Phenotype of fusion cells were identified by fluorescence microscope and flow cytometer. The fusion vaccine was evaluated for T cell proliferation, secretion of IL-12 and IFN-?, and induction of tumor-specific CTL response. Despite differences in morphology, day-3 and day-7 DC expressed similar surface markers. The secretion of IL-12 and IFN-? in fusion vaccine group was much higher than that in the control group. Compared with control group, DC-tumor fusion vaccine could better stimulate the proliferation of allogeneic T lymphocytes and kill more breast cancer cells (MDA-MB-231) in vitro. Day-3 DCs had the same function as the day-7 DCs, but with a shorter culture period. Our findings suggested that day-3 DCs fused with whole apoptotic breast cancer cells could elicit effective specific antitumor T cell responses in vitro and may be developed into a prospective candidate for adoptivet immunotherapy. PMID:25036145

Li, Xi; Liu, Ruilei; Jiang, Hua; Huang, Zenan; Liu, Yu; Wu, Juekun; Huang, Yong

2014-01-01

250

Making a Course (and Learning Gains) Portable: the day-by-day plan  

NSDL National Science Digital Library

This presentation outlines a program for mentoring faculty in the use of effective course activities and structure. This method provides day-by-day information of the activities used and any problems or issues found during each class period. The method has been used for both studio and traditional courses. Studies have shown very similar results on standard assessment tools for courses taught by different faculty.

Hoellwarth, Chance; Moelter, Matthew

2008-05-17

251

36 CFR 219.56 - Objection time periods and process.  

...Computation of time periods. (1) All time periods are computed using calendar days...Saturdays, Sundays, and Federal holidays in the time zone of the reviewing officer. However, when the time period expires on a Saturday, Sunday,...

2014-07-01

252

Long term organ culture of human prostate tissue in a NASA-designed rotating wall bioreactor  

NASA Technical Reports Server (NTRS)

PURPOSE: To maintain ex vivo integral prostatic tissue including intact stromal and ductal elements using the NASA-designed Rotating Wall Vessel (RWV) which maintains colocalized cells in an environment that promotes both three-dimensional cellular interactions together with the uniform mass transfer of nutrients and metabolic wastes. MATERIALS AND METHODS: Samples of normal prostate were obtained as a byproduct of transurethral prostatectomy or needle biopsy. Prostatic tissue dissected into small 1 x 1 mm. blocks was cultured in the Rotating Wall Vessel (RWV) Bioreactor for various time periods and analyzed using histological, immunochemical, and total cell RNA assays. RESULTS: We report the long term maintenance of benign explanted human prostate tissue grown in simple culture medium, under the simulated microgravity conditions afforded by the RWV bioreactor. Mesenchymal stromal elements including blood vessels and architecturally preserved tubuloglandular acini were maintained for a minimum of 28 days. Cytokeratins, vimentin and TGF-beta2 receptor and ligand were preserved through the entire culture period as revealed by immunocytochemistry. Prostatic acid phosphatase (PAP) was continuously expressed during the culture period, although somewhat decreased. Prostatic specific antigen (PSA) and its transcript were down regulated over time of culture. Prostatic carcinoma cells from the TSU cell line were able to invade RWV-cultured benign prostate tissue explants. CONCLUSIONS: The RWV bioreactor represents an additional new technology for culturing prostate tissue for further investigations concerning the basic physiology and pathobiology of this clinically important tissue.

Margolis, L.; Hatfill, S.; Chuaqui, R.; Vocke, C.; Emmert-Buck, M.; Linehan, W. M.; Duray, P. H.

1999-01-01

253

Day-to-day stationary link flow pattern  

Microsoft Academic Search

Day-to-day traffic dynamics aim at modeling driver’s day-to-day learning and behavior adjustment process and providing insight on how the traffic flow pattern evolves over time. A number of continuous-time path flow dynamics have been proposed and studied in the literature whose stationary path flow pattern coincides with user equilibrium. However, the application prospects of these findings are limited by the

Fan Yang; Ding Zhang

2009-01-01

254

A sunspot periodicity and the solar rotation  

NASA Technical Reports Server (NTRS)

A least squares power spectrum analysis of daily sunspot numbers for the last 122 years yielded a statistically significant peak at 12.0715 plus or minus .002 days period. This feature at 11.685 days (sidereal) of the sunspot spectrum is discussed in relation to the peak at 12.22 days (sidereal) which Dicke found in his oblateness data. The data is attributed to the Sun's core if the core rotates at either 12.0715 days or 24.1430 days period (synodic). It is suggested that spacecraft observations combined with correlative analysis of solar surface features between eastern and western hemispheres could further reveal a basic core periodicity. A Dicke type space oblateness experiment is discussed for providing better photospheric observations than a ground instrument to determine the core periodicity.

Knight, J. W.; Sturrock, P. A.; Schatten, K. H.

1980-01-01

255

IN HONOR OF VETERANS DAY 2011 VETERANS DAY ACTIVITIES & DISCOUNTS  

E-print Network

IN HONOR OF VETERANS DAY 2011 VETERANS DAY ACTIVITIES & DISCOUNTS 1 8 0 1 E A S T C O T A T I A V E With Veterans Day fast approaching on November 11th , Sonoma State University would like to thank all of our student veterans who have served honorably in the military. SSU appreciates your service to our country

Ravikumar, B.

256

Full-Day or Half-Day Kindergarten? ERIC Digest.  

ERIC Educational Resources Information Center

This ERIC Digest examines how changing family patterns have affected the full-day/half-day kindergarten issue, discussing why schools are currently considering alternative scheduling and describing the advantages and disadvantages of each type of program. The following changing family patterns affecting the choice of full-day kindergarten programs…

Rothenberg, Dianne

257

Repellent Culture.  

ERIC Educational Resources Information Center

Considers defining "culture," noting how it is difficult to define because those individuals defining it cannot separate themselves from it. Relates these issues to student writing and their writing improvement. Addresses violence in relation to culture. (SG)

Carroll, Jeffrey

2001-01-01

258

Gastric culture  

MedlinePLUS

Gastric culture is a test to check a child's stomach contents for the bacteria that cause tuberculosis (TB). ... is placed in a special dish called a culture medium and watched for the growth of bacteria.

259

Epidemiology of Viral Infections and Evaluation of the Potential Benefit of OM85 BV on the Virologie Status of Children Attending Day-Care Centers  

Microsoft Academic Search

Viral investigations were performed during 4 winter seasons (88\\/89, 89\\/90, 92\\/93, 93\\/94) in children attending day-care centers (DCCs) in the Rhone Département in eastern France. Over the total observation period of 4 winter seasons, 780 children were screened with a nasal swab for the presence of viruses. Of those, 230 (29.5%) had a positive viral culture. The viruses identified were

M. Aymard; J. J. Chomel; J. P. Allard; D. Thouvenot; D. Honegger; D. Floret; J.-P. Boissel; J.-P. Collet; F. Dürr; J. Gillet; N. Bossard; L. Lyon

1994-01-01

260

Optimizing recovery of cytomegalovirus in the shell vial culture procedure.  

PubMed

We have investigated three factors that may be related to the recovery of cytomegalovirus (CMV) using the shell vial culture procedure. First, we compared fluorescent-antibody staining of shell vial cultures using a monoclonal antibody to a CMV immediate early antigen at 16 vs 40 hr after inoculation. Of 332 routinely submitted specimens cultured in duplicate and stained at the different times, 25 (7.5%) were positive at 16 hr and 32 (9.6%) were positive at 40 hr. The increased yield was 28%. Second, we analyzed the effect of using duplicate shell vials (both stained at 40 hr) for all routinely submitted CMV cultures. During a 6-month period, 272 (12.5%) of the 2157 cultures processed with duplicate shell vials were positive, including 222 positive in both vials and 50 positive in only one. Assuming that a single-vial setup would have detected 50% of those positive in only one of the two vials, the increased yield attributable to the duplicate vial was estimated at 10% (25/(222 + 25)). Third, we investigated the effects of seeding density and culture age on the shell vial assay. Cell age of greater than 1 day was associated with a decrease in sensitivity both in cultures that were confluent and in those that were subconfluent at the time of inoculation. Incorporating these findings in the routine shell vial culture procedure used in our Clinical Virology Laboratory has resulted in a greater overall detection of CMV in shell vial cultures than in conventional 6-week tube cultures. PMID:1651824

Arens, M; Owen, J; Hagerty, C M; Reed, C A; Storch, G A

1991-01-01

261

Career Days A Guide for  

E-print Network

about their experience. · Companies accept CVs and applications for their internships and graduate Days A Guide for Students and Fresh Graduates #12 Day · Learn about the job market and what opportunities are available when you graduate. · Learn

262

School Day Just Got Healthier  

MedlinePLUS

... 32 million children receive meals throughout the school day. These meals are based on nutrition standards from ... served at school. more fruits and vegetables every day Kids have fruits and vegetables at school every ...

263

Development of 3-D Hydrogel Culture Systems With On-Demand Cell Separation  

PubMed Central

Recently there has been an increased interest in the effects of paracrine signaling between groups of cells, particularly in the context of better understanding how stem cells contribute to tissue repair. Most current 3-D co-culture methods lack the ability to effectively separate 2 cell populations after the culture period, which is important for simultaneously analyzing the reciprocal effects of each cell type on the other. Here, we detail the development of a 3-D hydrogel co-culture system that allows us to culture different cell types for up to 7 days and subsequently separate and isolate the different cell populations using enzyme-sensitive glues. Separable 3-D co-culture laminates were prepared by laminating PEG-based hydrogels with enzyme-degradable hydrogel adhesives. Encapsulated cell populations exhibited good segregation with well-defined interfaces. Furthermore, constructs can be separated on-demand upon addition of the appropriate enzyme and cell viability remains high throughout the culture period, even after laminate separation. This platform offers great potential for a variety of basic cell signaling studies as the incorporation of an enzyme-sensitive adhesive interface allows the on-demand separation of individual cell populations for immediate analysis or further culture to examine persistence of co-culture effects and paracrine signaling on cell populations. PMID:23447378

Hamilton, Sharon K.; Bloodworth, Nathaniel C.; Massad, Christopher S.; Hammoudi, Taymour M.; Suri, Shalu; Yang, Peter J.; Lu, Hang; Temenoff, Johnna S.

2013-01-01

264

70 Days of Jupiter Winds  

NASA Technical Reports Server (NTRS)

This global movie of 70 days of Jupiter's cloud movements photographed by NASA's Cassini spacecraft shows that zones of eastward and westward winds cover the planet virtually from pole to pole.

Cassini's narrow-angle camera captured the images of Jupiter's atmosphere from October 1 to December 9, 2000, in the near-infrared region of the spectrum. The view here is a cylindrical projection centered in the planet's equator.

The movie allows tracking of individual storms' movements in the familiar zonal bands of the lower latitudes, in the swirling turbulence around the Great Red Spot and in the high latitudes where still images show chaotic mottling instead of stripes.

Cassini collected images of Jupiter for months before and after it passed the planet on December 30, 2000. Six or more images of the planet in each of several spectral filters were taken at evenly spaced intervals over the course of Jupiter's 10-hour rotation period. The entire sequence was repeated generally every other Jupiter rotation, yielding views of every sector of the planet at least once every 20 hours.

The images used for the movie shown here were taken every 20 hours through a filter centered at a wavelength of 756 nanometers, where there are almost no absorptions in the planet's atmosphere. Six images covering each rotation were mosaiced together to form a cylindrical map extending from 75 degrees north to 75 degrees south in latitude and covering 360 degrees in longitude. The movie consists of 84 such maps, spanning 70Earth days in time or 168 Jupiter rotations.

For more information, see the Cassini Project home page, http://www.jpl.nasa.gov/cassini/ and the Cassini Imaging Team home page, http://ciclops.lpl.arizona.edu/ciclops/ .

Cassini is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini mission for NASA's Office of Space Science, Washington, D.C.

2001-01-01

265

The Realities of Day Care.  

ERIC Educational Resources Information Center

Examines research that measured the effects of early child day care and how adverse findings affect the public-debate about how to provide care for U.S. children. Areas addressed include day care's effect on the mother/child relationship; its effects on child cognitive development and social development; and who is ultimately responsible for day

Broude, Gwen J.

1996-01-01

266

Family Day Care Provider Handbook  

ERIC Educational Resources Information Center

Family day care providers are responsible for creating a high-quality program where children have opportunities to grow, learn and thrive. Part of providing high-quality child care includes complying with the family day care regulations from the New York State Office of Children and Family Services (OCFS). This Handbook will help day care…

New York State Office of Children and Family Services, 2006

2006-01-01

267

The 4 Day School Week  

ERIC Educational Resources Information Center

Colorado law requires school districts to schedule 1080 hours per year of instructional time for secondary schools and 990 instructional hours for elementary schools. The 1080 hours equate to six hours per day for 180 days. The 990 hours equate to five and one-half hours per day. Up to 24 hours may be counted for parent-teacher conferences, staff…

Dam, Ai

2006-01-01

268

Perspectives on Infant Day Care.  

ERIC Educational Resources Information Center

These proceedings of the first annual SACUS workshop on infant day care contain the papers presented at the conference, plus an appendix--Developmental Objectives for Infants and Toddlers. The papers are: "Infant Day Care--Fads, Facts, and Fancies" by Bettye M. Caldwell; "Family Day Care""A Broad Perspective" by Malcolm S. Host; "Getting…

Elardo, Richard, E.; Pagan, Betty, Ed.

269

Hormone profile of crossbred goats during the periparturient period.  

PubMed

The plasma hormone profile of progesterone, 17 beta-oestradiol, prolactin, growth hormone (GH), cortisol, triiodothyronine (T3), thyroxine (T4) and insulin were estimated by radioimmunoassay in jugular blood samples from 10 Alpine x Beetal crossbred goats during the periparturient period. The plasma progesterone concentrations declined from day 20 prior to kidding to the day of kidding and then remained at a basal level. 17 beta-Oestradiol concentrations declined from day 20 to day 4 prepartum, followed by a continuous increase to reach a peak at kidding. Plasma oestradiol declined abruptly on day 1 postpartum and remained low throughout the postpartum period. The plasma prolactin concentrations increased continuously from day 20 to day 10 prepartum but then increased to a peak on the day of kidding, followed by a transient decline by day 5 postpartum. The plasma GH concentrations varied significantly (p < 0.01) on the different days of sampling but were highest on the day of kidding. The plasma cortisol concentration declined from day 20 to day 2 prepartum, after which it abruptly increased on day 1 prepartum to reach a peak on the day of kidding. The concentrations of plasma T3 remained similar during the prepartum period but were minimal on the day of kidding and increased during the postpartum period. The concentration of plasma T4 was also lowest on the day of kidding and increased during the postpartum period. Plasma insulin concentrations were low in the day of kidding. PMID:11969112

Khan, J R; Ludri, R S

2002-03-01

270

Behaviour of cell cultures from human amniotic fluid  

Microsoft Academic Search

The growth pattern of cell cultures originating from 11 amniotic fluid specimens have been observed. From each specimen 2 to 12 primary cultures were set up. In most cases growth started simultaneously in the primary cultures originating from one sample. The primary cultures lasted from 7 to 30 days. A variation was found both between cultures from different pregnancies as

L Hasholt

1976-01-01

271

Specimen Sample Preservation for Cell and Tissue Cultures  

NASA Technical Reports Server (NTRS)

The era of the International Space Station with its longer duration missions will pose unique challenges to microgravity life sciences research. The Space Station Biological Research Project (SSBRP) is responsible for addressing these challenges and defining the science requirements necessary to conduct life science research on-board the International Space Station. Space Station will support a wide range of cell and tissue culture experiments for durations of 1 to 30 days. Space Shuttle flights to bring experimental samples back to Earth for analyses will only occur every 90 days. Therefore, samples may have to be retained for periods up to 60 days. This presents a new challenge in fresh specimen sample storage for cell biology. Fresh specimen samples are defined as samples that are preserved by means other than fixation and cryopreservation. The challenge of long-term storage of fresh specimen samples includes the need to suspend or inhibit proliferation and metabolism pending return to Earth-based laboratories. With this challenge being unique to space research, there have not been any ground based studies performed to address this issue. It was decided hy SSBRP that experiment support studies to address the following issues were needed: Fixative Solution Management; Media Storage Conditions; Fresh Specimen Sample Storage of Mammalian Cell/Tissue Cultures; Fresh Specimen Sample Storage of Plant Cell/Tissue Cultures; Fresh Specimen Sample Storage of Aquatic Cell/Tissue Cultures; and Fresh Specimen Sample Storage of Microbial Cell/Tissue Cultures. The objective of these studies was to derive a set of conditions and recommendations that can be used in a long duration microgravity environment such as Space Station that will permit extended storage of cell and tissue culture specimens in a state consistent with zero or minimal growth, while at the same time maintaining their stability and viability.

Meeker, Gabrielle; Ronzana, Karolyn; Schibner, Karen; Evans, Robert

1996-01-01

272

Culture evolves  

PubMed Central

Culture pervades human lives and has allowed our species to create niches all around the world and its oceans, in ways quite unlike any other primate. Indeed, our cultural nature appears so distinctive that it is often thought to separate humanity from the rest of nature and the Darwinian forces that shape it. A contrary view arises through the recent discoveries of a diverse range of disciplines, here brought together to illustrate the scope of a burgeoning field of cultural evolution and to facilitate cross-disciplinary fertilization. Each approach emphasizes important linkages between culture and evolutionary biology rather than quarantining one from the other. Recent studies reveal that processes important in cultural transmission are more widespread and significant across the animal kingdom than earlier recognized, with important implications for evolutionary theory. Recent archaeological discoveries have pushed back the origins of human culture to much more ancient times than traditionally thought. These developments suggest previously unidentified continuities between animal and human culture. A third new array of discoveries concerns the later diversification of human cultures, where the operations of Darwinian-like processes are identified, in part, through scientific methods borrowed from biology. Finally, surprising discoveries have been made about the imprint of cultural evolution in the predispositions of human minds for cultural transmission. PMID:21357216

Whiten, Andrew; Hinde, Robert A.; Laland, Kevin N.; Stringer, Christopher B.

2011-01-01

273

Culture organotipiche di polmone embrionale di pollo  

Microsoft Academic Search

Lung rudiments from chick embryos were explanted at stages between 4 and 51\\/2; days of incubation and cultured in vitro by the method for organotypic culture for a maximum of 6 days.Lung rudiment continues in vitro the ramification process when this has already begun at explantation time. The general behaviour of the branching process is very similar to what occurs

Tommaso Alescio

1959-01-01

274

Periodic Variations of CR Muon Intensity in the Period 2002-2004  

Microsoft Academic Search

ó Power spectral analysis of cosmic-ray muon inten- sity record from Belgrade muon detectors in the period 2002-2004 is carried out. Several periodicities are found in data sets from both ground(GD) and underground(UD) (25 mwe) detectors. Periodogram analysis revealed statistically signicant peaks in both data sets at solar rotation period 26.5 day (27.0 in the ground data) day and its

A. Dragi; R. Banjanac; D. Jokovi; J. Puzovi; I. Ani

275

17 CFR 290.2 - Periodic reports.  

Code of Federal Regulations, 2010 CFR

...EXCHANGE COMMISSION (CONTINUED) Schedule A to Part 285 GENERAL RULES AND REGULATIONS PURSUANT TO SECTION 9(a) OF THE EUROPEAN BANK FOR RECONSTRUCTION AND DEVELOPMENT ACT § 290.2 Periodic reports. (a) Within 45 days after the end of...

2010-04-01

276

Cultural Entomology  

NSDL National Science Digital Library

This article, succinctly written by the late Charles Hogue, was taken, with permission, from the 1987 Annual Review of Entomology. It provides an excellent explanation of cultural entomology, along with examples of the influence insects have had on art, folklore, history, literature and language, the performing arts, philosophy, religion, and other areas of culture from around the world. To delve more deeply into cultural entomology, the original 1987 article should be consulted for a listing of many specific references to the subject.

0002-11-30

277

Day 3 and day 5 morphological predictors of embryo viability  

Microsoft Academic Search

Controlling multiple pregnancies in patients undergoing artificial reproductive procedures requires consideration of single embryo transfers. Therefore, refinements for embryo evaluation are needed that select for the most developmentally competent embryo. The present study was designed to identify day 3 and day 5 morphological predictors of viability following transfers in which the morphology and fate of each embryo was precisely determined.

Catherine Racowsky; Catherine MH Combelles; Aida Nureddin; Yuying Pan; Alison Finn; Lyndon Miles; Sarah Gale; Thomas O'Leary; Katharine V Jackson

2003-01-01

278

Manifestation of the 399-day variations in solar wind parameters  

Microsoft Academic Search

Based on a large series (N = 14 038) of daily solar wind densities, we obtained the fluctuation power spectrum. The spectrum shows that the 399-day\\u000a variation (the synodic period of Jupiter) has the largest amplitude in the interval of periods from 20 to 800 days. It is\\u000a second in magnitude only to the secular, 22-, and 11-year variations. The

N. G. Skryabin; V. E. Timofeev; L. I. Miroshnichenko; S. N. Samsonov

2005-01-01

279

Rethinking the Day of Silence  

ERIC Educational Resources Information Center

Back in 2006, 7th and 8th graders at Green Acres, the K-8 independent school where the author taught in suburban Maryland, participated in the Day of Silence. The Day of Silence is a national event: Students across the country take a one-day pledge of silence to show that they want to make schools safe for all students, regardless of their sexual…

Murphy, Adriana

2013-01-01

280

Visually guided whole cell patch clamp of mouse supraoptic nucleus neurons in cultured and acute conditions.  

PubMed

Recent advances in neuronal culturing techniques have supplied a new set of tools for studying neural tissue, providing effective means to study molecular aspects of regulatory elements in the supraoptic nucleus of the hypothalamus (SON). To combine molecular biology techniques with electrophysiological recording, we modified an organotypic culture protocol to permit transfection and whole cell patch-clamp recordings from SON cells. Neonatal mouse brain coronal sections containing the SON were dissected out, placed on a filter insert in culture medium, and incubated for at least 4 days to allow attachment to the insert. The SON was identifiable using gross anatomical landmarks, which remained intact throughout the culturing period. Immunohistochemical staining identified both vasopressinergic and oxytocinergic cells present in the cultures, typically appearing in well-defined clusters. Whole cell recordings from these cultures demonstrated that certain properties of the neonatal mouse SON were comparable to adult mouse magnocellular neurons. SON neurons in both neonatal cultures and acute adult slices showed similar sustained outward rectification above -60 mV and action potential broadening during evoked activity. Membrane potential, input resistance, and rapidly inactivating potassium current density (IA) were reduced in the cultures, whereas whole cell capacitance and spontaneous synaptic excitation were increased, perhaps reflecting developmental changes in cell physiology that warrant further study. The use of the outlined organotypic culturing procedures will allow the study of such electrophysiological properties of mouse SON using whole cell patch-clamp, in addition to various molecular, techniques that require longer incubation times. PMID:16469834

Stachniak, Tevye J E; Bourque, Charles W

2006-07-01

281

Drugs, Alcohol, & You (DAY) Programs  

E-print Network

Drugs, Alcohol, & You (DAY) Programs iTEAM Director of Specialty Counseling Services Vice President Learning Assistance Services Graduate Training Behavioral Health Director of Counseling Services Alcohol

282

Cell isolation and culture.  

PubMed

Cell isolation and culture are essential tools for the study of cell function. Isolated cells grown under controlled conditions can be manipulated and imaged at a level of resolution that is not possible in whole animals or even tissue explants. Recent advances have allowed for large-scale isolation and culture of primary C. elegans cells from both embryos and all four larval stages. Isolated cells can be used for single-cell profiling, electrophysiology, and high-resolution microscopy to assay cell autonomous development and behavior. This chapter describes protocols for the isolation and culture of C. elegans embryonic and larval stage cells. Our protocols describe isolation of embryonic and L1 stage cells from nematodes grown on high-density NA22 bacterial plates and isolation of L2 through L4 stage cells from nematodes grown in axenic liquid culture. Both embryonic and larval cells can be isolated from nematode populations within 3 hours and can be cultured for several days. A primer on sterile cell culture techniques is given in the appendices. PMID:23430760

Zhang, Sihui; Kuhn, Jeffrey R

2013-01-01

283

Developing Multicultural Awareness: An In-service Day Proposal for Rend Lake College, Ina, Illinois.  

ERIC Educational Resources Information Center

Noting that the state of Illinois mandates that community colleges address cultural diversity in their curriculum, this paper presents a proposal for a day-long in-service faculty education program to make faculty aware that cultural diversity exists at Rend Lake College (Illinois). The paper begins with a schedule for the in-service day, offering…

Rust, Joseph Henry

284

3 CFR 8339 - Proclamation 8339 of January 15, 2009. National Sanctity of Human Life Day, 2009  

Code of Federal Regulations, 2010 CFR

...been committed to building a culture of life by vigorously...our commitment to building a culture of life in America. Also...encourage more of our fellow Americans to join our just and noble...Life Day. I call upon all Americans to recognize this day...

2010-01-01

285

Period Determination for 4527 Schoenberg  

NASA Astrophysics Data System (ADS)

The main-belt asteroid 4527 Schoenberg (1982 OK) has been observed between June 28 and July 1, 2012 at Maidanak astronomical observatory of the Ulugh Beg Astronomical Institute (UBAI), Uzbekistan Academy of Sciences. On the basis of data analysis it is found a synodic rotation period of 2.6928" b0.0384 hour (0.1122±0.0016 day) and lightcurve amplitude of 0.31±0.05 mag.

Burkhonov, O. A.; Ehgamberdiev, Sh. A.; Ergashev, K. E.

2013-10-01

286

Model Valid Prediction Period  

NASA Astrophysics Data System (ADS)

A new concept, valid prediction period (VPP), is presented here to evaluate model predictability. VPP is defined as the time period when the prediction error first exceeds a pre-determined criterion (i.e., the tolerance level). It depends not only on the instantaneous error growth, but also on the noise level, the initial error, and tolerance level. The model predictability skill is then represented by a single scalar, VPP. The longer the VPP, the higher the model predictability skill is. A theoretical framework on the base of the backward Fokker-Planck equation is developed to determine the probability density function (pdf) of VPP. Verification of a Gulf of Mexico nowcast/forecast model is used as an example to demonstrate the usefulness of VPP. Power law scaling is found in the mean square error of displacement between drifting buoy and model trajectories (both at 50 m depth). The pdf of VPP is asymmetric with a long and broad tail on the higher value side, which suggests long-term predictability. The calculations demonstrate that the long-term (extreme long such as 50-60 day) predictability is not an "outlier" and shares the same statistical properties as the short-term predictions. References Chu P. C., L. M. Ivanov, and C.W. Fan, Backward Fokker-Plank equation for determining model predictability with unknown initial error distribution. J. Geophys. Res., in press, 2002. Chu P.C., L.M.Ivanov, T.M. Margolina, and O.V.Melnichenko, 2002b: On probabilistic stability of an atmospheric model to various amplitude perturbations. J. Atmos. Sci., in press Chu P.C., L.M. Ivanov, L. Kantha, O.V. Melnichenko and Y.A. Poberezhny, 2002c: The long-term correlations and power decay law in model prediction skill. Geophys. Res. Let., in press.

Chu, P. C.

2002-12-01

287

Mobilization of Metals from Pristine Mineral Soil by Nitrifying and Sulfur-Oxidizing Bacteria – The Leaching Potential of Indigenous Culture Enrichments  

Microsoft Academic Search

Indigenous chemolithotrophic nitrifying and sulfur-oxidizing culture enrichments mobilized metals from pristine mineral soil under conditions of ammonium or thiosulfate supplementation in a laboratory experiment carried out over a period of 40 days. The average mineralogical composition of the mineral soil was quartz (62%), feldspar (20%), muscovite (6%), chlorite (2%), hornblende (2%), dolomite (4%), and calcium carbonate (4%). The leaching efficiency

Renate Sonnleitner; Bernhard Redl; Petra Merschak; Franz Schinner

2011-01-01

288

The 90-day oscillation of the jovian Great Red SPOT  

Microsoft Academic Search

The purpose of this contribution is to study the possible existence of the 90-day longitude oscillation of Jupiter's Great Red Spot (GRS) which had been discovered in the 1960s over long time intervals. Additionally, further possible periodicities in the longitudinal motion of the GRS in the 40 to 400 day range are considered.

Grischa Hahn

1996-01-01

289

A travelling quasi 2-day wave in the meteor region  

Microsoft Academic Search

Oscillations in the meteor wind with periods of about 2 days during the summer are explained as the effects of traveling planetary-scale waves. Spaced station observations indicate that the waves are traveling westward with a zonal number three. A possible connection with the quasi 5-day wave is suggested.

H. G. Muller; L. Nelson

1978-01-01

290

So Many Periodic Tables!  

NSDL National Science Digital Library

Periodic tables come in a variety of shapes and formats. Some periodic tables have a flair of creativity! Take a look at these different versions of Periodic Tables at the following websites. You will be asked to reflect on the theme of periodicity after exploring these websites. 1. Some Periodic Tables provide a wealth of information about each element. Compare 2 different elements on the following Periodic Tables. Periodic Table Alive WebElements 2. Periodic Tables can be organized in unique and unusual 2-dimensional and 3-dimensional formats. Analyse the organization of periodicity in some of the following Periodic Tables. Presentation Forms of the Periodic Table Universal Periodic Table 3. Sometimes the designer ...

Suggs, Mrs.

2007-11-30

291

Recherche de facteurs spcifiques dans les milieux de culture des embryons  

E-print Network

in the culture media of human embryos. Mitogenic activity of culture media having contained either unfertilized or cleaved embryos have been studied. In these media human eggs have been cultured for one day, beginning 20 incorporation following 3 day culture in the presence of eggs or embryo culture media. No reproducible effect

Paris-Sud XI, Université de

292

ASSESSMENT DAYS Graduate Recruitment Supervisor  

E-print Network

and negotiation exercise for sales professionals. Strategy paper 30 minutes prior to exercise assessing abilityASSESSMENT DAYS Abul Shama Graduate Recruitment Supervisor #12;Assessment days are a method used relationships etc. Individuals are typically assessed against a list of pre-agreed competencies. #12

293

Youth Field Day Planning Guide.  

ERIC Educational Resources Information Center

Youth field days expose children to outdoor activities, land use ethics, and habitat conservation and encourage adults to be mentors in these areas. A typical youth field day could have programs in archery, fishing, boating, shooting, or safety. The event requires a diverse steering committee that usually includes sporting clubs and state…

Wisconsin State Dept. of Natural Resources, Madison.

294

Day Care Infection Control Protocol.  

ERIC Educational Resources Information Center

This day care infection control manual was assembled to provide technical guidance for the prevention and control of communicable diseases to child day care facilities in Seattle and King County, Washington. For each disease, the manual provides background information, public health control recommendations, and letters that can be used to…

Seattle-King County Dept. of Public Health, Seattle, WA.

295

Culture Contents.  

ERIC Educational Resources Information Center

Successful relations between the United States and United Kingdom may require more attention to their internal ethnic and cultural diversity. This political-linguistic culture is subdivided into two contradictory yet complementary streams. The political approach for those favoring an English-speaking union may be greater ecumenism within the…

Phillips, Kevin

2001-01-01

296

Pop Culture.  

ERIC Educational Resources Information Center

Popular culture in America is comprehensively reviewed in this book. The book is designed for either high school or college level social studies or English courses and includes a variety of graphic illustrations that provide a thread of continuity throughout. Basically the author has developed a method of analysis that reveals how popular culture

Berger, Arthur Asa

297

report all activities on a day-to-day basis during the survey period, at home or elsewhere (2).  

E-print Network

such as the National Household Travel Survey (NHTS). The NHTS itself possesses a problem with small sample size for every 1,200 households. It is evident that the NHTS has a problem with small sample size, especially in the small to midsize areas. A similar problem with small sample size also exists in subpopulation groups

Illinois at Chicago, University of

298

Cultural practices in Nigeria.  

PubMed

Nigeria has a rich cultural heritage. Cultural practices include extended family; adequate care for new mothers for 40 days after delivery; prolonged breastfeeding; and respect for elders. Many negative practices exist, most of them affecting the health of children and women. About 90% of babies are delivered by mostly untrained traditional birth attendants (TBAs) and healers. Child marriage is a common Nigerian practice. This deprives the girl of education and results in teenage pregnancy. Legislation does not seem to be very effective. It is hoped that will education, girls will be allowed to remain in school until the age of 18. Female circumcision and vaginal mutilation and also common in Nigerian culture. TBAs and healers have stated that there is severe bleeding after circumcision, sometimes so severe that it leads to death. Other harmful delivery practices include bathing in boiling water; gishiri cut, a crude local symphysiotomy; and agurya cut--removal of the hymen loop on 7-day-old females. Bathing in boiling water results in many women being burned or disfigured; gishiri cut has resulted in vesicovaginal fistula in many young girls. Other harmful practices are purging of infants to get rid of impurities "they might have swallowed while in the uterus;" uvulectomy in infants, and induction of postpartum hemorrhage to clear the uterus of impure blood. The list goes on and on. Women and children are exposed to many unhealthy practices in the name of tradition or culture. PMID:12157983

Alabi, E M

1990-05-01

299

Lipid composition in long-day and short-day forms of the black bean aphid, Aphis fabae  

Microsoft Academic Search

Long-day reared winged (alate) virginoparae from laboratory stock cultures which had been reared throughout larval development on bean stipules were significantly smaller (0.46±0.02 mg; mean±SEM) than short-day-reared gynoparae (0.69±0.04 mg; the winged autumn migrant) which completed development on intact beans. When winged virginoparae were raised from the third stadium on bean seedlings they grew larger (0.86±0.02 mg) but the gynoparae

Kyo Itoyama; Sumio Tojo; Teruyoshi Yanagita; Jim Hardie

2000-01-01

300

STS-70 flight: Day 3  

NASA Astrophysics Data System (ADS)

The third day of the STS-70 mission of Space Shuttle Discovery is contained on this video. Astronauts Kregal and Thomas begin the day by working with the Hercules camera, which will record pinpoint data on the surface location of Earth observation imagery. Other work includes operations with an experiment that gauges astronauts' reflexes and hand-eye coordination. During the day, the crew spoke with World War 2 veteran, Harland Claussen,and ABC's Mike and Maty Show and the Toledo Blade newspaper (Toledo, Ohio) interviewed the astronauts via satellite link.

1995-07-01

301

A Revised Period For AY Aur  

NASA Astrophysics Data System (ADS)

The period of the Mira variable AY Aur has been determined to be longer than that published in the GCVS 4th Edition. Fourier and CLEANEST analysis of AAVSO data determines the period to be 389.8 days. The discrepancy may have been caused by the effects of large gaps in observational data magnified by the close proximity of the star's period in relation to the length of the solar cycle.

Price, A.; Templeton, M. R.; Mattei, J. A.

2003-02-01

302

Accelerating the culture change!  

PubMed

Exide Electronics, a major supplier of uninterruptible power system equipment, embarked on a journey of changing a culture to improve quality, enhance customer responsiveness, and reduce costs. This case study examines the evolution of change over a period of seven years, with particular emphasis on the most recent years, 1992 through 1995. The article focuses on the Raleigh plant operations and describes how each succeeding year built on the successes and fixed the shortcomings of the prior years to accelerate the culture change, including corrective action and continuous improvement processes, organizational structures, expectations, goals, achievements, and pitfalls. The real challenge to changing the culture was structuring a dynamic approach to accelerate change! The presentation also examines how the evolutionary process itself can be created and accelerated through ongoing communication, regular feedback of progress and goals, constant evaluation and direction of the process, and measuring and paying for performance. PMID:10162360

Klunk, S W; Panetta, J; Wooten, J

1996-11-01

303

Active period Sleep period Active period Sleep period Fig. 1. Sleep-awake cycles of SMAC.  

E-print Network

A cycle Active period Sleep period Active period Sleep period SYNC usage DATA usage time Fig. 1. Sleep-awake cycles of SMAC. Modeling and Throughput Analysis for SMAC with a Finite Queue Capacity Ou extensive simulations, which provide throughput values within 5% of the throughput values obtained through

Heinzelman, Wendi

304

MIT Visualizing Cultures  

NSDL National Science Digital Library

Started in 2002, the Visualizing Cultures website is produced by MIT, and it was designed "to explore the potential of the Web for developing innovative image-driven scholarship and learning." The site contains topical units of self-discovery which are focused on Japan's role in the modern world and early-modern China. The various units address cultures of modernization, war and peace, and consumerism, among others. Each unit is represented by a different image, and visitors will find a short narrative essay along with plenty of visual images which document teach topic. One unit that should not be missed is "Felice Beato's Japan". Here visitors can learn about the pioneering work of Felice Beato, as he took photos of the "exotic" Japanese people in his Yokohama studio and captured the transitional period between the "feudal governance of the Edo period (1600-1868) and the imperial rule of the Meiji era (1868-1912)."

305

An in vitro system for the long-term tissue culture of juvenile rainbow trout (Oncorhynchus mykiss) testis.  

PubMed

In vitro cultivation of fish gonad fragments continues to be an important experimental approach to answer both fundamental and applied scientific questions. The aim of the present investigation was to test whether juvenile rainbow trout (Oncorhynchus mykiss) testes cultured for a week or more were physiologically competent. Trout testis fragments (approximately 1 mm2) were placed on pieces of flat, culture plate insert filter, in a drop of liquid medium (modified Leibovitz's L-15), and floated on the medium surface in a multi-well culture plate. Culture plates were covered and incubated in air at 15 degrees C. Three different endpoints were used to test whether cultured testis fragments remained healthy and functional. First, a comparison of the histological appearance of testis fragments cultured in vitro for different periods up to 8 days with intact testes indicated that no differences were evident. Secondly, testis fragments incubated in medium supplemented with bovine calf serum (BCS) at concentrations of 2.5% and 25% BCS had significantly greater proliferation of interstitial and spermatocyst cells as measured by nuclear 5-bromo-2'-deoxyuridine incorporation. Finally, testis fragments cultured for 5 days and transplanted back into the donor fish underwent precocious sexual maturity in response to a regime of salmon pituitary extract injections and produced fertile sperm as determined by their ability to successfully fertilize eggs. These experiments demonstrate the utility of this method for in vitro culture of juvenile rainbow trout testis fragments. PMID:16013044

Bouma, Gerrit J; Cloud, Joseph G; Nagler, James J

2005-08-01

306

7 CFR 1230.639 - Additional absentee voter challenge period.  

Code of Federal Regulations, 2010 CFR

...challenge period of five business days (October 23, 2000-October 27, 2000...no later than the 2nd business day (October 31, 2000) after the last day...not later than the 45th business day (November 28, 2000) after the date...

2010-01-01

307

Persistence of peptidylglycine alpha-amidating monooxygenase activity and elevated thyrotropin-releasing hormone concentrations in fetal rat islets in culture.  

PubMed

Two experimental systems were used to investigate the relationship between TRH content and peptidylglycine alpha-amidating monooxygenase (PAMase) activity of the neonatal rat pancreatic islets: freshly isolated islets from rats aged 1-14 days, and fetal islets maintained in culture for 3 weeks. TRH was present in freshly isolated islets and in newly formed fetal islets in culture. However, while the TRH concentration in freshly isolated islets measured by RIA followed the same ontogenic pattern as that in the total pancreas, peaking during the first week of life (78 pg/micrograms DNA on day 4) and decreasing thereafter to reach 4 pg/micrograms DNA on day 14, the TRH content of fetal islets in culture did not decrease with time (65 pg/micrograms DNA on day 1 and 80 pg/micrograms DNA after 3 weeks in culture). Similarly, using immunocytochemistry, immunoreactive cells were only seen at day 2 in freshly isolated islets. In contrast, in fetal islets, TRH cells were present throughout the culture period. In both experimental systems, TRH was localized in beta-cells. PAMase activity paralleled TRH concentration, peaking during the first week of life in freshly isolated islets and remaining unchanged in the fetal islets in culture. PAMase activity is, therefore, present in the endocrine pancreas. The results suggest that PAMase activity is a rate-limiting step in TRH biosynthesis in this tissue. PMID:3136006

Scharfmann, R; Leduque, P; Aratan-Spire, S; Dubois, P; Basmaciogullari, A; Czernichow, P

1988-09-01

308

Making Those First Days Count.  

ERIC Educational Resources Information Center

The author describes three "icebreaker" activities she uses to help a class of students get acquainted with one another--learning names and personal information--during the first days of the school year. (SJL)

Soloway, Rhoda Kahn

1979-01-01

309

Last Days of Life (PDQ®)  

Cancer.gov

Expert-reviewed information summary about care during the last days to last hours of life, including common symptoms, ethical dilemmas that may arise, and the role of the oncologist in caring for patients and their families during this time.

310

Enhancing Self-Image of International Students: "International Day."  

ERIC Educational Resources Information Center

English-as-a-Second-Language (ESL) students and their American peers, teachers, and community leaders can appreciate cultural differences at a school International Day. Guided by their teachers, students can benefit from improving their communication, organizational, and research skills as they plan the event. Compositions help students organize…

Lopez-Butner, Lindy

311

Earth Day Main > Sierra Club  

NSDL National Science Digital Library

This page from the Sierra Club has links and information dedicated to the celebration of Earth Day. Resources on the site contain information on projects across the country. There are also ideas for integrating eco-friendly projects into your community, and energy saving tips for the home, office and city as a whole. Fact sheets on global warming and other educational materials are also available for integration into your own Earth Day celebration.

2007-04-19

312

Go-To-Blazes Day.  

ERIC Educational Resources Information Center

THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: Last year, the Bruce Trail Association held its first annual Go-To-Blazes Day in which a record number of volunteers gave the 700 kilometres of Trail from Queenston to Tobermory a spring-cleaning. One key section of Trail near Dyer's Bay had been closed for over a year. On this day, over four miles…

McLean, Ross

313

Astronomy Picture of the Day  

NSDL National Science Digital Library

Each day a different image or photograph of a celestial object is featured. Pictures are selected for their particular beauty or astronomical interest, and each one is accompanied by a brief caption written by a professional astronomer. Links to additional information are embedded in the text of the caption. Previous pictures of the day are archived in reverse chronological order dating back to June 1995.

314

Volunteer Day Class Photo -Reminder  

E-print Network

to the homeless and interact with English speakers from different cultures. Meet at Norman Garage at 12:30pm're a veteran Fall C student, please welcome the new Fall B students. Immunizations & Insurance: All of our students are required to have certain immunizations and adequate health insurance in order to attend class

Pilyugin, Sergei S.

315

Valentine's Day Party Weekday Activities  

E-print Network

Soccer and Frisbee (Robert) Meet at Flavet Field. Free Wednesday 7:00pm Coffee Talk (Sarah) Meet at 7 p.m. at Starbucks on Archer Road.. Free (Bring money for coffee and food if you like.) Thursday 6:00pm Volleyball: Fahad Alqhtani Staff: None this week! Happy Birthday, one and all! Manners and Culture Q: Other than

Pilyugin, Sergei S.

316

A Day at the Museums  

ERIC Educational Resources Information Center

The school field trip, once a supporting player in a well-rounded education, is slowly becoming endangered. Widespread budget cuts have made happily anticipated class trips to museums, zoos, and other cultural destinations increasingly scarce. A librarian may be able to rescue the field trip from extinction by transforming the school building into…

Hubel, Joy Alter

2009-01-01

317

Experience with day stay surgery.  

PubMed

Potential advantages of day stay surgery are cost saving, improved utilization of staff and hospital facilities, and reduction of stress for the paediatric patient and his family. The successful program requires careful case selection, full operating and anesthetic facilities and good follow-up. Day stay surgery was initiated at Royal Alexandra Hospital for Children in 1974. Experience is reviewed in relation to the total number and nature of surgical admissions and the daily utilisation of the facility. Utilization has markedly increased in the past 2 yr. Current practice is reviewed with regard to initial assessment, preparation for surgery and overall management during the day admission. Parental attitudes towards day stay surgery were evaluated indicating both the advantages and the problems encountered. These related mainly to insufficient information, transport difficulties and afternoon operations. Recommendations for improving the day stay service are discussed with special reference to: (1) communication with the parents as to adequate pre-operative explanation, revision of the day stay information pamphlet and improved distribution, and clear postoperative instructions, (2) the timing of operations, and (3) transport and parking facilities. PMID:7365654

Cohen, D; Keneally, J; Black, A; Gaffney, S; Johnson, A

1980-02-01

318

Supplementation of bovine embryo culture medium with L-arginine improves embryo quality via nitric oxide production.  

PubMed

Nitric oxide (NO) is a cell-signaling molecule that regulates a variety of molecular pathways. We investigated the role of NO during preimplantation embryonic development by blocking its production with an inhibitor or supplementing in vitro bovine embryo cultures with its natural precursor, L-arginine, over different periods. Endpoints evaluated included blastocyst rates, development kinetics, and embryo quality. Supplementation with the NO synthase inhibitor N-Nitro-L-arginine-methyl ester (L-NAME) from Days 1 to 8 of culture decreased blastocyst (P?Days 1 to 8, 50?mM L-arginine decreased blastocyst rates (P?Days 5 to 8, 1?mM L-arginine improved embryo hatching rates (P?culture period positively correlated with the increased embryo hatching rates and quality (P?culture medium with L-arginine favors preimplantation development of bovine embryos. Mol. Reprod. Dev. 81: 918-927, 2014. © 2014 Wiley Periodicals, Inc. PMID:25236163

Santana, Priscila Di Paula Bessa; Silva, Thiago Velasco Guimarães; da Costa, Nathália Nogueira; da Silva, Bruno Barauna; Carter, Timothy Frederick; Cordeiro, Marcela da Silva; da Silva, Bruno José Martins; Santos, Simone do Socorro Damasceno; Herculano, Anderson Manoel; Adona, Paulo Roberto; Ohashi, Otávio Mitio; Miranda, Moysés Dos Santos

2014-10-01

319

Blood culture  

MedlinePLUS

Culture - blood ... A blood sample is needed. The site where blood will be drawn is first cleaned with an antiseptic such ... organism from the skin getting into (contaminating) the blood sample and causing a false-positive result (see ...

320

Bile culture  

MedlinePLUS

Bile culture is a laboratory test to detect disease-causing germs in the biliary system . ... detect infection within the biliary system. The biliary system creates, moves, stores, and releases bile to help in digestion.

321

Culture Currents.  

ERIC Educational Resources Information Center

Barone and Britzman, each in a short essay, discuss the books, poetry, performances, music, and other cultural media that influence them. Cites the publications of each and lists the works discussed. (MLF)

Barone, Tom; Britzman, Deborah P.

2003-01-01

322

Throat Culture  

MedlinePLUS

... inoculating the sample into solid or liquid nutrient media (e.g., agar, gelatin) in order to grow any microorganisms like bacteria or fungi that may be present. Cultures can be performed on a variety of body ...

323

Comparison of the value of initial and serial endotracheal aspirate surveillance cultures in predicting the causative pathogen of ventilator-associated pneumonia.  

PubMed

Ventilator-associated pneumonia (VAP) is the most common nosocomial infection in the intensive care unit (ICU) and its outcome is affected by the adequacy and timing of initial antibiotic therapy. Recent studies have suggested that surveillance cultures of the lower airways may provide microbiological guidance for initial antibiotic prescription and increase the use of appropriate antibiotic therapy. This study aimed to compare the predictive value of initial and serial surveillance cultures of endotracheal aspirates in predicting the causative pathogen of VAP in patients receiving antibiotic therapy. This was an observational prospective cohort study. Ninety-two patients ventilated for at least 4 days were recruited into the study. Initial (IS-ETA) and serial (SS-ETA) endotracheal aspirate surveillance cultures were obtained on the day of intubation and every second day, respectively. The sensitivity, specificity, and positive and negative predictive values for the causative pathogens of VAP were calculated for each surveillance culture. Ninety-two initial and 252 serial surveillance cultures were obtained during the study period. The sensitivity of IS-ETA culture was 12% and of SS-ETA culture was 44%. The sensitivity of SS-ETA in late-onset VAP was 51%. The value of SS-ETA surveillance cultures was better than IS-ETA surveillance in predicting the causative pathogen of VAP, particularly in late-onset pneumonia. PMID:20095937

Gursel, Gul; Aydogdu, Muge; Nadir Ozis, Turkan; Tasyurek, Secil

2010-05-01

324

Antarctica Day: An International Celebration  

NASA Astrophysics Data System (ADS)

For more than half a century, the 1959 Antarctic Treaty continues to shine as a rare beacon of international cooperation. To celebrate this milestone of peace in our civilization with hope and inspiration for future generations, Antarctica Day is celebrated each year on December 1st , the anniversary of the Antarctic Treaty signing. As an annual event - initiated by the Foundation for the Good Governance of International Spaces (www.internationalspaces.org/) in collaboration with the Association of Polar Early Carer Scientists (www.apecs.is) - Antarctica Day encourages participation from around the world. The Antarctic Treaty set aside 10% of the earth, 'forever to be used exclusively for peaceful purposes in the interest of mankind.' It was the first nuclear arms agreement and the first institution to govern all human activities in an international region beyond sovereign jurisdictions. In this spirit, Antarctica Day aims to: - Demonstrate how diverse nations can work together peacefully, using science as a global language of cooperation for decision making beyond national boundaries, - Provide strategies for students learning about Antarctica through art, science and history at all school levels, - Increase collaboration and communication between classrooms, communities, researchers and government officials around the world, and - Provide a focus for polar educators to build on each year. Through close collaboration with a number of partners. Antarctica Day activities have included: a Polar Film Festival convened by The Explorers Club; live sessions connecting classrooms with scientists in Antarctica thanks to PolarTREC and ARCUS; an international activity that involved children from 13 countries who created over 600 flags which exemplify Antarctica Day (these were actually flown in Antarctica with signed certificates then returned to the classes); a map where Antarctica Day participants all over the world could share what they were doing; an Antarctic bird count involving the International Association of Antarctic Tour Operators; and public lectures and online videos (including a notable submission from Polar Educators International). Antarctica Day was initiated as a legacy of the 2009 Antarctic Treaty Summit (www.atsumit50.aq), which was convened at the Smithsonian Institution with 40 sponsoring institutions from around the world as part of the International Polar Year. Antarctic Day involved participants from 14 nations in 2010. 28 nations in 2011, and 26 nations in 2012 with representatives from all 7 continents. Antarctica Day 2013 will have recently taken place before the AGU Fall Meeting 2013, and we will present updates at that time. Our aim is to continue expanding Antarctica Day as a globally-accessible platform to share, interpret and cherish the values associated with Antarctica for the benefit of present and future generations. We look forward to the discussion and sharing that this session will provide.

Pope, A.; Hambrook Berkman, J.; Berkman, P. A.

2013-12-01

325

Urine culture - catheterized specimen  

MedlinePLUS

Culture - urine - catheterized specimen; Urine culture - catheterization; Catheterized urine specimen culture ... urinary tract infections may be found in the culture. This is called a contaminant. You may not ...

326

Day-to-day repeatability of the Pulse Time Index of Norm  

PubMed Central

The pulse wave velocity (PWV) threshold for hypertensive target organ damage is presently set at 10 meters per second. New 24-hour monitors (eg, BPLab® and Vasotens®) provide several PWV measurements over a period of 24–72 hours. A new parameter, ie, the Pulse Time Index of Norm (PTIN), can be calculated from these data. The PTIN is defined as the percentage of a 24-hour period during which the PWV does not exceed 10 meters per second. The aim of the present study was to test the new PTIN for clinical feasibility using day-to-day repeatability analysis. Oscillometrically generated waveform files (n=85), which were previously used for research studies, were reanalyzed using the new 2013 version software of the Vasotens technology program, which enables calculation of PTIN. The intraclass correlation coefficient was 0.98 and Cronbach’s alpha was 0.97, indicating that the PTIN has excellent day-to-day repeatability and internal consistency. The present results show adequate repeatability, and PTIN assessment using the Vasotens technology appears to be feasible. PMID:24600253

Posokhov, Igor N; Konradi, Aleksandra O; Shlyakhto, Eugeny V; Mamontov, Oleg V; Orlov, Artemy V; Rogoza, Anatoly N

2014-01-01

327

Mitochondrial activity assessed by cytofluorescence after in-vitro-irradiation of primary rat brain cultures  

SciTech Connect

Mitochondria play a key role in cell homeostasis and are the first cell organells affected by ionizing irradiation, as it was proved by previous electron microscopic investigations. In order to observe functional parameters of mitochondria after low-dose irradiation, primary rat brain cultures (prepared from 15-day-old rat fetuses) were irradiated from a [sup 60]Co-source with 0.5 and 1 Gy at the age of 2 or 7 days in vitro (div). Cytofluorescence measurement was made by a Cytofluor[sup [trademark]2350] using Rhodamine 123. This fluorescent dye is positively charged and accumulates specifically in the mitochondria of living cells without cytotoxic effect. Since its retention depends on the negative membrane potential as well as the proton gradient that exists across the inner mitochondrial membrane, Rhodamine 123 accumulation reflects the status of mitochondrial activity as a whole. After irradiation with 0.5 and 1 Gy on day 2 in culture there was a decrease in Rhodamine uptake in the irradiated cultures during the first week after the irradiation insult which reached minimum values after 3 days. Rhodamine uptake increased during the following period and finally reached the values of the control cultures. In the second experiment with irradiated cultures on day 7 and the same doses of 0.5 and 1 Gy the accumulation of Rhodamine decreased only initially then increased tremendously. After both doses values of Rhodamine-accumulation were higher than the control level. The results demonstrated that irradiation caused a change in mitochondrial activity depending on the time of irradiation. The dramatic increase over the control levels after irradiation on day 7 in vitro is attributed to the fact that at this time synapses have already developed. Deficiency of mitochondrial activity as well as hyperactivity and the consequent change in energy production may lead to changes in neuronal metabolism including an increase in production of free radicals.

Cervos-Navarro, J.; Hamdorf, G. (Free Univ., Berlin (Germany))

1993-05-01

328

A complete culture system for the chick embryo  

Microsoft Academic Search

The embryonic lifespan of the chick is 22 days. Development in the first day takes place in the oviduct, and in the remaining 21 days in the shelled egg. There have been few attempts to culture oviductal embryos1-3, though methods covering the first few days of development in ovo are well established4 and a method for the final 18 days

M. M. Perry

1988-01-01

329

Enhanced biosynthesis of withanolides by elicitation and precursor feeding in cell suspension culture of Withania somnifera (L.) Dunal in shake-flask culture and bioreactor.  

PubMed

The present study investigated the biosynthesis of major and minor withanolides of Withania somnifera in cell suspension culture using shake-flask culture and bioreactor by exploiting elicitation and precursor feeding strategies. Elicitors like cadmium chloride, aluminium chloride and chitosan, precursors such as cholesterol, mevalonic acid and squalene were examined. Maximum total withanolides detected [withanolide A (7606.75 mg), withanolide B (4826.05 mg), withaferin A (3732.81 mg), withanone (6538.65 mg), 12 deoxy withanstramonolide (3176.63 mg), withanoside IV (2623.21 mg) and withanoside V (2861.18 mg)] were achieved in the combined treatment of chitosan (100 mg/l) and squalene (6 mM) along with 1 mg/l picloram, 0.5 mg/l KN, 200 mg/l L-glutamine and 5% sucrose in culture at 4 h and 48 h exposure times respectively on 28th day of culture in bioreactor. We obtained higher concentrations of total withanolides in shake-flask culture (2.13-fold) as well as bioreactor (1.66-fold) when compared to control treatments. This optimized protocol can be utilized for commercial level production of withanolides from suspension culture using industrial bioreactors in a short culture period. PMID:25089711

Sivanandhan, Ganeshan; Selvaraj, Natesan; Ganapathi, Andy; Manickavasagam, Markandan

2014-01-01

330

Enhanced Biosynthesis of Withanolides by Elicitation and Precursor Feeding in Cell Suspension Culture of Withania somnifera (L.) Dunal in Shake-Flask Culture and Bioreactor  

PubMed Central

The present study investigated the biosynthesis of major and minor withanolides of Withania somnifera in cell suspension culture using shake-flask culture and bioreactor by exploiting elicitation and precursor feeding strategies. Elicitors like cadmium chloride, aluminium chloride and chitosan, precursors such as cholesterol, mevalonic acid and squalene were examined. Maximum total withanolides detected [withanolide A (7606.75 mg), withanolide B (4826.05 mg), withaferin A (3732.81 mg), withanone (6538.65 mg), 12 deoxy withanstramonolide (3176.63 mg), withanoside IV (2623.21 mg) and withanoside V (2861.18 mg)] were achieved in the combined treatment of chitosan (100 mg/l) and squalene (6 mM) along with 1 mg/l picloram, 0.5 mg/l KN, 200 mg/l L-glutamine and 5% sucrose in culture at 4 h and 48 h exposure times respectively on 28th day of culture in bioreactor. We obtained higher concentrations of total withanolides in shake-flask culture (2.13-fold) as well as bioreactor (1.66-fold) when compared to control treatments. This optimized protocol can be utilized for commercial level production of withanolides from suspension culture using industrial bioreactors in a short culture period. PMID:25089711

Sivanandhan, Ganeshan; Selvaraj, Natesan; Ganapathi, Andy; Manickavasagam, Markandan

2014-01-01

331

The day-to-day occurrence of equatorial plasma bubbles measured from Vanimo, Papua New Guinea  

NASA Astrophysics Data System (ADS)

An analysis of the occurrence of Equatorial Plasma Bubbles (EPBs) detected using a ground-based Global Positioning System (GPS) receiver located at Vanimo in South-east Asia will be presented. The 3-year (2000-2002) dataset employed shows that the EPB occurrence maximizes (minimizes) during the equinoxes (solstices), in good agreement with previous findings. The low-latitude ionosonde station at Vanimo is used in conjunction with the GPS receiver in an analysis of the day-to-day EPB occurrence variability during the equinox period. A superposed epoch analysis of the ionosonde data reveals that the height, and the change in height, of the F layer is 1 standard deviation (1?) larger on the days for which EPBs were detected, compared to non-EPB days. These results are interpreted using the generalized Rayleigh-Taylor (R-T) plasma instability growth rate, for which stronger upward drift of the lower-altitude F-layer plasma promotes faster growth of EPBs after sunset. These results are then compared to the results of the Thermosphere Ionosphere Electrodynamic General Circulation Model (TIEGCM), which surprisingly show strong similarities to the observations, despite only using geomagnetic and solar activity inputs. The TIEGCM is also used to directly calculate the hourly flux-tube integrated R-T growth rate. A superposed epoch analysis reveals that the modeled R-T growth rate is a little less than 1? higher on average for EPB days compared to non-EPB days. The implication of this result is that the TIEGCM generates almost enough day-to-day variability in order to account for the day-to-day EPB occurrence observed during the equinox. This result isn't necessarily expected due to the model's limited altitude coverage of 100-700 km (depending on solar activity) and the lack of ionospheric observation inputs. It is thought that the remaining variability could originate from either lower altitudes (e.g. atmospheric gravity waves from the troposphere) or from higher altitudes (resulting from coupling with the magnetosphere and solar wind), or potentially both. It is concluded that the continuing advancement of numerical modeling of the thermosphere and ionosphere, coupled with altitudes above and below, is required to better understand the day-to-day EPB occurrence.

Carter, B. A.; Yizengaw, E.; Francis, M.; Terkildsen, M. B.; Marshall, R. A.; Norman, R.; Zhang, K.

2013-12-01

332

Effect of Matrix on Cardiomyocyte Viscoelastic Properties in 2D Culture  

PubMed Central

Cardiomyocyte phenotype changes significantly in 2D culture systems depending on the substrate composition and organization. Given the variety of substrates that are used both for basic cardiac cell culture studies and for regenerative medicine applications, there is a critical need to understand how the different matrices influence cardiac cell mechanics. In the current study, the mechanical properties of neonatal rat cardiomyocytes cultured in a subconfluent layer upon aligned and unaligned collagen and fibronectin matrices were assessed over a two week period using atomic force microscopy. The elastic modulus was estimated by fitting the Hertz model to force curve data and the percent relaxation was determined from stress relaxation curves. The Quasilinear Viscoelastic (QLV) and Standard Linear Solid (SLS) models were fit to the stress relaxation data. Cardiomyocyte cellular mechanical properties were found to be highly dependent on matrix composition and organization as well as time in culture. It was observed that the cells stiffened and relaxed less over the first 3 to 5 days in culture before reaching a plateau in their mechanical properties. After day 5, cells on aligned matrices were stiffer than cells on unaligned matrices and cells on fibronectin matrices were stiffer than cells on collagen matrices. No such significant trends in percent relaxation measurements were observed but the QLV model fit the data very well. These results were correlated with observed changes in cellular structure associated with culture on the different substrates and analyzed for cell-to-cell variability. PMID:23285736

Deitch, Sandra; Gao, Bruce Z.; Dean, Delphine

2012-01-01

333

Development of a serum-free defined system employing growth factors for preantral follicle culture.  

PubMed

This study was conducted to evaluate if mouse preantral follicles can yield developmentally competent oocytes following culture in serum-free, defined medium. Donor follicles were obtained from 14-day-old B6CBAF1 mice, and cultured in ?-MEM-Glutamax medium. The replacement of fetal bovine serum with knockout serum replacement (KSR) did not significantly reduce follicle growth or oocyte maturation in vitro, although it significantly reduced the development of oocytes after activation. Regardless of the replacement medium, follicle growth was not influenced by the addition of leukemia inhibitory factor (LIF). The addition of 100 ng/ml stem cell factor (SCF) to the KSR-supplemented serum-free medium significantly stimulated follicle development, which further improved blastocyst formation after oocyte activation. On Day 3 of culture, a significant increase in Bmp7 expression was detected in the SCF-containing medium compared with the serum-containing medium, whereas Gdf9 and Amh were increased in the serum-containing medium. A significant increase in estradiol production was detected under serum-free conditions, but minimal progesterone secretion was detected throughout the culture period. In conclusion, serum-free media can be used to optimize ovarian follicle cultures, and the addition of SCF is beneficial for deriving developmentally competent oocytes through follicle culture. PMID:23813589

Park, Young Hyun; Gong, Seung Pyo; Kim, Hwa Young; Kim, Gil Ah; Choi, Jun Hee; Ahn, Ji Yeon; Lim, Jeong Mook

2013-09-01

334

Overcoming bottlenecks of enzymatic biofuel cell cathodes: crude fungal culture supernatant can help to extend lifetime and reduce cost.  

PubMed

Enzymatic biofuel cells (BFCs) show great potential for the direct conversion of biochemically stored energy from renewable biomass resources into electricity. However, enzyme purification is time-consuming and expensive. Furthermore, the long-term use of enzymatic BFCs is hindered by enzyme degradation, which limits their lifetime to only a few weeks. We show, for the first time, that crude culture supernatant from enzyme-secreting microorganisms (Trametes versicolor) can be used without further treatment to supply the enzyme laccase to the cathode of a mediatorless BFC. Polarization curves show that there is no significant difference in the cathode performance when using crude supernatant that contains laccase compared to purified laccase in culture medium or buffer solution. Furthermore, we demonstrate that the oxygen reduction activity of this enzymatic cathode can be sustained over a period of at least 120 days by periodic resupply of crude culture supernatant. This is more than five times longer than control cathodes without the resupply of culture supernatant. During the operation period of 120 days, no progressive loss of potential is observed, which suggests that significantly longer lifetimes than shown in this work may be possible. Our results demonstrate the possibility to establish simple, cost efficient, and mediatorless enzymatic BFC cathodes that do not require expensive enzyme purification procedures. Furthermore, they show the feasibility of an enzymatic BFC with an extended lifetime, in which self-replicating microorganisms provide the electrode with catalytically active enzymes in a continuous or periodic manner. PMID:23801592

Sané, Sabine; Jolivalt, Claude; Mittler, Gerhard; Nielsen, Peter J; Rubenwolf, Stefanie; Zengerle, Roland; Kerzenmacher, Sven

2013-07-01

335

PSY 344. Psychology and Culture SDSU Fall 2013 Schedule # 22551  

E-print Network

PSY 344. Psychology and Culture SDSU ­ Fall 2013 ­ Schedule # 22551 Class Meetings Class Days of the course is to introduce you to the field of cultural psychology. This course will explore how culture influences human thoughts, feelings, and behaviors. The relations between culture and psychology are both

Gallo, Linda C.

336

Comparison of periodic substorms at Jupiter and Earth  

Microsoft Academic Search

The Energetic Particles Detector and magnetometer measurements on Galileo showed that the Jovian magnetosphere undergoes reconfiguration processes which are very similar to the characteristics of a terrestrial substorm. At Jupiter the reconfiguration process occurs quasi-periodically with a repetition period of several days. In the terrestrial magnetosphere periodic substorms have been observed during magnetic storms. The comparison of the periodic magnetospheric

E. A. Kronberg; J. Woch; N. Krupp; A. Lagg; P. W. Daly; A. Korth

2008-01-01

337

Three Dimensional Primary Hepatocyte Culture  

NASA Technical Reports Server (NTRS)

Our results demonstrated for the first time the feasibility of culturing PHH in microgravity bioreactors that exceeded the longest period obtained using other methods. Within the first week of culture, isolated hepatocytes started to form aggregates, which continuously increased in size (up to 1 cm) and macroscopically appeared as a multidimensional tissue-like assembly. To improve oxygenation and nutrition within the spheroids we performed experiments with the biodegradable nonwoven fiber-based polymers made from PolyGlycolic Acid (PGA). It has been shown that PGA scaffolds stimulate isolated cells to regenerate tissue with defined sizes and shapes and are currently being studied for various tissue-engineering applications. Our data demonstrated that culturing hepatocytes in the presence of PGA scaffolds resulted in more efficient cell assembly and formations of larger cell spheroids (up to 3 cm in length, see figure). The histology of cell aggregates cultured with PGA showed polymer fibers with attached hepatocytes. We initiated experiments to co-culture primary human hepatocytes with human microvascular endothelial cells in the bioreactor. The presence of endothelial cells in co-cultures were established by immunohistochemistry using anti-CD34 monoclonal Ab. Our preliminary data demonstrated that cultures of purified hepatocytes with human microvascular endothelial cells exhibited better growth and expressed higher levels of albumin MRNA for a longer period of time than cultures of ppfified, primary human hepatocytes cultured alone. We also evaluated microsomal deethylation activity of hepatocytes cultured in the presence of endothelial cells.In summary, we have established liver cell culture, which mimicked the structure and function of the parent tissue.

Yoffe, Boris

1998-01-01

338

The Two Cultures in Psychiatry  

PubMed Central

The division between the two cultures of the literary and scientific worlds is considered, as is the division between the two cultures of humanism and somaticism. The development of psychiatric thought important to this latter dichotomy is described through the Age of Enlightenment, the Romantic Movement and the New Enlightenment. The two cultures of our present literary and scientific milieux are equated with the romanticism and somaticism of the past. The development of two cultures in psychiatry is traced, beginning with Freud's attempt to combine science and romanticism, to the present day where one finds some degree of convergence between the somatic and psychoanalytic approaches. Criteria are presented for a greater union of the two cultures in psychiatry. PMID:20328284

Cleghorn, R. A.

1965-01-01

339

Periodic Screening Evaluation  

Cancer.gov

Statistical Software Periodic Screening Evaluation (Written by Stuart G. Baker) New Approach (Simplified Approximation): See Baker SG. Evaluating periodic cancer screening without a randomized control group: a simplified design and analysis. In: Duffy

340

Periodic Fever Syndromes  

Microsoft Academic Search

The periodic syndromes represent a heterogeneous group of disorders that can be very difficult for practicing physicians to\\u000a diagnosis and treat. This article presents an orderly approach to hyperimmunoglobulin D syndrome; tumor necrosis factor receptor-1\\u000a periodic syndrome; familial Mediterranean fever; periodic fever with aphthous stomatitis, pharyngitis, and adenitis syndrome;\\u000a and cryopyrin-associated periodic syndromes by highlighting the disease presentation, diagnosis, pathogenesis,

Zachary Jacobs; Christina E. Ciaccio

2010-01-01

341

Polymicrobial chronic endophthalmitis diagnosed by culture and molecular technique.  

PubMed

Accurate etiological diagnosis is the key to prevention of ocular morbidity in endophthalmitis cases. A 66 year old male was suffering from chronic endophthalmitis post-cataract surgery. Polymerase chain reaction examination on anterior chamber fluid was positive for Propionibacterium acnes but negative for the panfungal genome. He was advised vitrectomy with intravitreal injections. Polymerase chain reaction of vitreous aspirate was positive for P.acnes as well as panfungal genome. The vitreous sample also grew yeast in culture which was identified as Candida pseudotropicalis. Patient was treated on an alternate day regimen of intravitreal Vancomycin and Amphotericin B in the post-operative period. There was improvement in vision at final follow up. Chronic endophthalmitis can have polymicrobial etiology which will require appropriate diagnostic and therapeutic strategies. The role of molecular testing is vital in these cases as growth in culture is often negative. PMID:25008833

Mukherjee, A; Pramanik, S; Das, D; Roy, R; Therese, K L

2014-01-01

342

Interactions of Phytophthora cinnamomi and Trichoderma spp. in relation to propagule production in soil cultures at 26 degrees C1.  

PubMed

Effects of Trichoderma harzianum and T. polysporum on chlamydospore production by two isolates of Phytophthora cinamomi were determined over a 21-day period in nonsterile, sterilized, and sterilized amended soil. Trichoderma was either coinoculated with P. cinnamomi or added to the cultures on day 3 of the incubation period. In nonsterile soil, conversion of mycelial fragments in the P. cinnamomi inoculum to chlamydospores resulted in an initial slight increase in chlamydospore numbers. In cultures where either of the Trichoderma isolates was added on day 3, a significiant reduction in chlamydospore numbers was observed on day 4; however, neither of the Trichoderma isolates at either inoculation time significantly affected clamydospore numbers by day 21. Results from studies with sterilized amended soil indicated that a reduction in P. cinnamomi chlamydospore numbers by either of the Trichoderma isolates was dependent upon availability of simple carbohydrates. In sterilized nonamended soil, the number of chlamydospores was increased in cultures containing either Trichoderma isolate; in sterilized amended soil chlamydospore numbers were initially reduced, followed by a general increase as the nutrients were depleted. Neither of the Trichoderma isolates exhibited significant antagonistic qualities toward P. cinnamomi. PMID:558040

Kelley, W D

1977-03-01

343

Genealogy of Periodic Trajectories.  

National Technical Information Service (NTIS)

The periodic solutions of non-integrable classical Hamiltonian systems with two degrees of freedom are numerically investigated. Curves of periodic families are given in plots of energy vs. period. Results are presented for this Hamiltonian: H = 1/2(p/sub...

M. A. M. de Adguiar, C. P. Maldta, E. J. V. de Passos

1986-01-01

344

Time-periodic universes  

E-print Network

In this letter we construct a new time-periodic solution of the vacuum Einstein's field equations whose Riemann curvature norm takes the infinity at some points. We show that this solution is intrinsically time-periodic and describes a time-periodic universe with the "black hole". New physical phenomena are investigated and new singularities are analyzed for this universal model.

De-Xing Kong; Kefeng Liu; Ming Shen

2008-08-30

345

Galileo Teacher Training Program - GTTP Days  

NASA Astrophysics Data System (ADS)

Despite the vast availability of teaching resources on the internet, finding a quality and user-friendly materials is a challenge. Many teachers are not trained with proper computing skills to search for the right materials. With years of expertise training teachers globally, Galileo Teacher Training Program (GTTP) [1] recognize the need of having a go-to place for teachers to access resources. To fill this need GTTP developed - GTTP Days - a program creating resource guides for planetary, lunar and solar fields. Avoiding the imbalance in science resources between the developed and undeveloped world, GTTP Days is available both online and offline as a printable version. Each resource guide covers areas such as scientific knowledge, exploration, observation, photography, art & culture and web tools. The lesson plans of each guide include hands-on activities, web tools, software tools, and activities for people with disabilities [2]. Each activity indicate the concepts used, the skills required and age level which guides the teachers and educators to select the correct content suitable for local curriculum.

Heenatigala, T.; Doran, R.

2012-09-01

346

Effect of supplemental yeast culture and sodium bicarbonate on ruminal fermentation and blood variables in rams.  

PubMed

A trial was conducted to evaluate the effect of sodium bicarbonate (BC) and Saccharomyces cerevisiae, live yeast culture (yea sacc(1026), YS) on ruminal fermentation and blood variables. Four Kivircik rams with ruminal cannula were used in a Latin square design, during 27-day periods (20 days for adaptation and 7 days for collection). They received 0 (control group), 5 g/day (i.e. 25 x 10(9) CFU) of YS or 10 g/day of sodium BC or 10 g/day of BC and 5 g/day of YS (BC + YS) (treatment groups). The cultures and sodium BC were added to the ration in a grain mix. The ration consisted of 70% grain mix and 30% lucerne hay. Rumen contents were collected before and 3 h and 6 h after morning feeding on days 1 and 7 in each collection period and were analyzed. Blood samples were also collected on the same days. Ruminal pH at 3 h (p < or = 0.1) and 6 h (p < or = 0.05) after feeding were higher when rams were fed BC and BC + YS than when they were fed CG and YS. Addition of YS to the diet did not modify the proportions of the different protozoa types; only Diplodinium at 0 h tended to be lower (p < 0.1) when rams were fed YS, BC and BC + YS than when they were fed CG. Plasma sodium value decreased by YS and BC + YS. Other biochemical and haematological variables were not affected by treatments. Also total volatile fatty acid, NH3-N concentrations and protozoa counts in the ruminal fluid were not affected by treatments. PMID:17083424

Galip, Nurten

2006-12-01

347

Culturally Responsive Teaching: Understanding Disability Culture  

ERIC Educational Resources Information Center

To be culturally responsive teachers, we must first have an understanding of other cultures and how students from these cultures differ from one another. As we consider the many cultures represented in our classrooms, we might also consider students with disabilities as a cultural group. Within any main culture are subgroups differentiated by…

Darrow, Alice-Ann

2013-01-01

348

2011 Astronomy Day at McDonald Observatory  

NASA Astrophysics Data System (ADS)

Our philosophy is that everyday is Astronomy Day because the McDonald Observatory's Frank N. Bash Visitors Center is open 362 days a year. So, how did we create a special celebration for the "Astronomy Day” declared by the Astronomical League? During September 26-29 we conducted 20 videoconferences and served 12,559 students with "Astronomy Day” programming. Connect2Texas provides bridging for a network of Texas-based museums and cultural, historical, and scientific organizations that offer educational content to schools throughout the state via videoconferencing. Connect2Texas connected McDonald Observatory to 334 schools; most of these schools were in Texas, but schools in a dozen other states also participated. While most schools had a "view-only" connection, at least 20 of the schools had interactive connections, whereby the students could ask questions of the presenter. Connect2Texas also collects evaluation information from the participating schools that we will use to produce a report for our funders and make modifications to future programs as need be. The videoconferences were offered free of charge. The theme for the 2011 Astronomy Day program was the Year of the Solar System, which aligns with NASA's theme for 2011 and 2012. By aligning with this NASA theme, we could leverage NASA artwork and materials to both advertise and enrich the learning experience. Videoconference materials also included pre- and post-videoconference assessment sheets, an inquiry based activity, and pre- and post-videoconference activities, all of which were made available online. One of the lessons learned from past Astronomy Day videoconferences is that the days the Astronomical League declares as "Astronomy Day” are not always good days for Texas schools to participate. So, we choose an Astronomy Day that meets the needs of Texas schools and our schedule - so any day can be Astronomy Day. 2011 Astronomy Day was made possible by The Meyer-Levy Charitable Trust.

Preston, Sandra; Hemeway, M.; Wetzel, M.

2012-01-01

349

KING DAY 2008 ESSAY COMPETITION  

E-print Network

This year's theme is drawn from Dr. King's notion of the "beloved community," and how we as citizens can of Dr. King. Length 1,000­1,500 words (4­5 pages) Eligibility All IUB graduate and undergraduateKING DAY 2008 ESSAY COMPETITION "Building the Community: Making the Dream a Reality" Theme

Indiana University

350

ACTIVE MINDS Summer Day Camps  

E-print Network

1 ACTIVE MINDS Summer Day Camps Ages: 6 to 16 years CAMPER PARTICIPANT PARENT/LEGAL GUARDIAN capacity one week prior to its start, Active Minds and UNBC reserves the right to cancel the camp may be considered based on the following reasons: Medical: If a participant has a medical condition

Northern British Columbia, University of

351

Bright Ideas for Dark Days  

ERIC Educational Resources Information Center

In this brief column, the author of "Teachers Touch Eternity," provides 20 tips that teachers can use to motivate themselves and others through the dark days of winter: (1) Fake it till you make it; (2) Allow for spontaneity; (3) Build an encouragement folder; (4) Lighten up! (5) Read motivational books or inspirational thoughts late at night or…

Easley, Dauna

2005-01-01

352

Damilola Adepegba Mentor: Billy Day  

E-print Network

Damilola Adepegba Mentor: Billy Day #12;HIV- Human Immunodeficiency Virus AIDS- Acquired Immune Deficiency Syndrome (NOW A PANDEMIC) Mechanism ­ T-cell, Macrophages, Dendritic cells 33.2 million in 2007 2 optimize viral replication and contribute to the immune evasion as well as survival of infected cells. #12

Benos, Takis

353

Halloween Coffee Talk Volunteer Day  

E-print Network

Highlights Halloween Coffee Talk Volunteer Day Class Photo University Admissions Workshop if it is already full. If you have any questions about any of the activities, see Chris in the CIP Office, Room 318. Halloween Coffee Talk The ELI will be having a special Halloween Coffee Talk! We will have face painting

Pilyugin, Sergei S.

354

The Twelve Days of Christmas  

NSDL National Science Digital Library

Add song and dance to your mathematics lessons with this exercise, in which students discover the various covert mathematical relations hidden in the lyrics to the song âÂÂThe Twelve Days of Christmas.â In addition to the specific song-related questions, the activity provides guidance for instructors to create similar projects with other songs.

Brown, Judy A.

2008-04-04

355

Make Your Own Snow Day!  

ERIC Educational Resources Information Center

Children love snow days, even when they come during the warmest weather. In this lesson the snow isn't falling outside, it's in the classroom--thanks to "Snowflake Bentley" (Briggs Martin 1998) and several models of snowflakes. A lesson on snow demonstrates several principles of practice for using models in elementary science. Focusing on snow was…

Robeck, Edward

2011-01-01

356

Employers and Family Day Care.  

ERIC Educational Resources Information Center

This paper provides employers with critical information about family day care, the most widely used type of out-of-home care for infants and toddlers in the United States. Employers who are concerned about honoring parents' choice of child care, committed to high quality child care, and dedicated to using resources efficiently, will be pleasantly…

Ward, Pat

357

Volunteer Day The Next Trip  

E-print Network

at 9:30am. Project Downtown Gainesville: Help feed the homeless in the downtown Bo' Diddley Community. Afternoon Activities Join us for the following activities this week: Monday: Game Night in the Reitz Union to be out for 3 or more days, please call the office and let us know. Student Mailbox: Please come

Pilyugin, Sergei S.

358

Infectious Diseases in Day Care.  

ERIC Educational Resources Information Center

Discussed in this publication are infectious illnesses for which children attending day care appear to be at special risk. Also covered are the common cold, some infectious disease problems receiving media attention, and some other annoying but not serious diseases, such as head lice, pinworms, and contagious skin conditions. Causes,…

Sleator, Esther K.

359

A Model Disability Awareness Day.  

ERIC Educational Resources Information Center

Describes an all-day conciousness raising program designed to teach elementary school students about the disabled. The program described consisted of oral presentations and a theater performance by disabled individuals; it was presented to 270 students at Mary A. Hubbard School in Ramsey, New Jersey. (GC)

Watson, Emily Strauss

1984-01-01

360

Cultural Correspondence  

NSDL National Science Digital Library

In the early 1970s, Paul Buhle and Dave Wagner began to think about creating a new and unique journal. They were both veterans of the journal Radical America, and they were both interested in popular culture. As August 1975 came around, they published the first issue of "Cultural Correspondence", a journal intended to serve as a critical review of popular culture. As the journal was published in Providence, it's not surprising to learn that the Brown University Library Center for Digital Initiatives (CDL) has created this most engaging archive of this publication. Visitors to the site can read the entire contents of each issue, browse around as they see fit, and also check out their virtual "Magazine Stand". First-time visitors may wish to start out by reading the Spring 1977 issue titled "Television".

361

Postmodern Culture  

NSDL National Science Digital Library

Somehow it is not surprising that a journal titled Postmodern Culture would find a home on the Internet, which itself is a bricoleur of many different forms and styles, akin to the very notion of postmodernism. Located online since 1990, Postmodern Culture "has become the leading electronic journal of interdisciplinary thought on contemporary cultures." The journal itself is published by The Johns Hopkins University Press, with assistance by the University of Virginia and Vassar College. Visitors to the site can browse the entire contents of the current volume, and may browse through the text-only archive, which is also made available here. The current edition contains pieces by Chris Bongie titled "Exiles on Main Stream: Valuing the Popularity of Postcolonial Literature" and a trenchant exchange by Leonard Wilcox and Brad Butterfield on "Baudrillard, September 11, and the Haunting Abyss of Reversal."

362

Invisible Culture  

NSDL National Science Digital Library

What is invisible culture? In this instance, it is an electronic journal produced by the Visual & Cultural Studies graduate program within the Art and Art History Department at the University of Rochester. The journal was founded in 1998 under the editorship of Mario Caro and edited by a host of talented individuals since then. Currently, there are nineteen issues available online, including "Interrogating Subcultures," "The Loop as a Temporal Form," and "Making Sense of Visual Culture." Each issue contains thoughtful commentary, complemented by various slideshows of images and other complementary materials. One of the more recent issues takes on the world of the TV show "Mad Men" with the piece "Serializing the Past: Re-Evaluating History in Mad Men."

363

Bayesian Modeling of Markers of Day-Specific Fertility David B. Dunson1,  

E-print Network

to avoid conception by periodic abstinence. A woman could potentially predict her fertile days on the basis in a pregnancy. Although women typically do not know when they ovulate, one can estimate the cycle day

West, Mike

364

X-ray-induced production of granulocyte-macrophage colony-stimulating factor (GM-CSF) by mouse spleen cells in culture  

SciTech Connect

Spleen cells were collected from normal mice and cultured in a medium containing 20% calf serum. Addition of lipopolysaccharide (LPS) in the culture significantly increased the production of granulocyte-macrophage colony-stimulating factor (GM-CSF), and a maximum induction was attained in 5 days. Irradiation of the spleen cells with 300 to 3000 R x rays also enhanced the production of GM-CSF, but there was a latent period of about 5 days before the factor appeared in the culture medium. The observed difference between LPS and x rays in the timing of inducing GM-CSF production in the spleen cell culture was consistent with the difference observed in animals. These results suggest that different mechanisms of GM-CSF production operate in the spleen in response to either LPS or x rays.

Onoda, M.; Shinoda, M.; Tsuneoka, K.; Shikita, M.

1980-07-01

365

76 FR 44573 - Child and Adult Care Food Program: National Average Payment Rates, Day Care Home Food Service...  

Federal Register 2010, 2011, 2012, 2013

...National Average Payment Rates, Day Care Home Food Service Payment Rates...Rates for Sponsoring Organizations of Day Care Homes for the Period July 1, 2011...Rates for Sponsoring Organizations of Day Care Homes per Home (Per month rates...

2011-07-26

366

Paleomicrobiology: Revealing Fecal Microbiomes of Ancient Indigenous Cultures  

PubMed Central

Coprolites are fossilized feces that can be used to provide information on the composition of the intestinal microbiota and, as we show, possibly on diet. We analyzed human coprolites from the Huecoid and Saladoid cultures from a settlement on Vieques Island, Puerto Rico. While more is known about the Saladoid culture, it is believed that both societies co-existed on this island approximately from 5 to 1170 AD. By extracting DNA from the coprolites, followed by metagenomic characterization, we show that both cultures can be distinguished from each other on the basis of their bacterial and fungal gut microbiomes. In addition, we show that parasite loads were heavy and also culturally distinct. Huecoid coprolites were characterized by maize and Basidiomycetes sequences, suggesting that these were important components of their diet. Saladoid coprolite samples harbored sequences associated with fish parasites, suggesting that raw fish was a substantial component of their diet. The present study shows that ancient DNA is not entirely degraded in humid, tropical environments, and that dietary and/or host genetic differences in ancient populations may be reflected in the composition of their gut microbiome. This further supports the hypothesis that the two ancient cultures studied were distinct, and that they retained distinct technological/cultural differences during an extended period of close proximity and peaceful co-existence. The two populations seemed to form the later-day Taínos, the Amerindians present at the point of Columbian contact. Importantly, our data suggest that paleomicrobiomics can be a powerful tool to assess cultural differences between ancient populations. PMID:25207979

Cano, Raul J.; Rivera-Perez, Jessica; Toranzos, Gary A.; Santiago-Rodriguez, Tasha M.; Narganes-Storde, Yvonne M.; Chanlatte-Baik, Luis; Garcia-Roldan, Erileen; Bunkley-Williams, Lucy; Massey, Steven E.

2014-01-01

367

Description of Day-to-Day Variability in IRI  

NASA Astrophysics Data System (ADS)

The International Reference Ionosphere (IRI) describes the monthly average behavior of Earth's ionosphere based on most of the accessible and reliable ground and space observations of ionospheric parameters. IRI is doing an excellent job in accurately representing these average conditions as countless comparisons with additional data have shown and as acknowledged by the fact that international organizations (COSPAR, URSI, ISO, ECSS) have accepted IRI as their ionosphere standard. However, with our ever-increasing dependence on space technology it has become important to go beyond the monthly averages and to provide a description of the day-to-day variability of the ionosphere. We will review past and ongoing efforts to provide IRI users with a quantitative description of ionospheric variability depending on altitude, time of day, time of year, latitude and solar and magnetic activity. We will present new results from an analysis of ISIS and Alouette topside sounder data. The IRI team is also pursuing the development of an IRI Real-Time (IRI-RT) that uses assimilative algorithms or updating procedures to combine IRI with real-time data for a more accurate picture of current ionospheric conditions. We will review the status of these activities and report on latest results.

Bilitza, Dieter; Liu, Boding; Rodriguez, Joseph E.

2013-04-01

368

Intradecadal Variations in Length of Day (Invited)  

NASA Astrophysics Data System (ADS)

We present and discuss recent evidence on the nature of intradecadal length of day (LOD). We have recently shown that non-atmospheric LOD from 1962 can be broadly divided into three components, a slowly varying decadal trend, an oscillation with period approximately 5.9 years, and jumps of order 0.1 ms in LOD which can be interpreted in terms of a change in the moment of inertia of the solid Earth. Large earthquakes have previously been shown to produce such signals, but of insufficient magnitude to explain the new observations. We have argued that close-to-instantaneous core-mantle coupling could explain these signals; in this presentation, we examine the LOD series in more detail to try to tease out more details of the process. In the recent (and atmospheric-motion corrected) LOD data, there is no evidence for variations in the period or amplitude of the oscillations, supporting an origin internal to the Earth rather than due to external (e.g., solar) forcing; we attempt to extend this work back in time, using the series from occultation observations established by Jordi et al. Preliminary analysis suggests a slighly longer period of oscillations for these data.

Holme, R. T.; de Viron, O.

2013-12-01

369

Stellar flaring periodicities.  

NASA Astrophysics Data System (ADS)

Long term monitoring of the radio flux density of a sample of cool, rapidly rotating stars in binary systems has revealed periodicities in their flaring activity. In one system, V773 Tau A p, the flaring periodicity is caused by inter-binary collisions of large magnetic structures like solar helmet streamers. In another system, UX Arietis p, the flaring periodicity depends on an intrinsic mechanism originating in the stellar interior, that implies preferred areas for the (periodical) emergence of magnetic flux tubes. The periodical interaction between old and new flux tubes triggers magnetic reconnection and periodical flares. Connecting that behaviour to the Sun, the Rieger periodicities (solar cycles with a time scale of months) are reviewed.

Massi, Maria

370

Culture duration-, donor-, and medium-dependent changes in OATP1B3-mediated telmisartan uptake in human hepatocytes.  

PubMed

Human hepatic organic anion-transporting polypeptides (OATPs), including OATP1B1, 1B3, and 2B1, are expressed at the basolateral membrane of hepatocytes and mediate the uptake of a variety of compounds from blood into hepatocytes. The liver-specific OATPs are increasingly recognized as playing important roles in the pharmacokinetic (PK) of many drugs and thus, involved in the clinically significant drug-drug interactions (DDIs). However, the evaluation of the specific roles of individual OATPs in hepatocytes is challenging because of the lack of selective inhibitors and probe substrates for each OATP member. In the present study, the uptake activity of OATP1B3 was examined in human hepatocytes cultured up to 14 days using an in vitro uptake assay. The results showed that OATP-mediated uptake of rosuvastatin, a substrate for OATPs declined substantially in cultured human hepatocytes. In contrast, the uptake of OATP1B3-selective substrate telmisartan was not measureable at earlier culture periods, but became detectable on Day 7 and showed culture duration-dependent changes from Day 7 to 14. Quantitative polymerase chain reaction (qPCR) analyses illustrated that the OATP functional change was not correlated with messenger ribonucleic acid (mRNA) expression alteration in hepatocytes cultured for 3 hours or 7 days. The OATP1B3-mediated telmisartan uptake was also culture medium- and donor-dependent, and only observed in 3 of 5 lots of hepatocytes cultured in 2 of 3 media tested. These results show that using human hepatocytes cultured in certain conditions may provide an excellent addition to transfected cell lines as a way to distinguish OATP1B3 from other hepatic OATP family members, such as OATP1B1, to provide more understanding of OATP-mediated clinical DDI. PMID:24628404

Zhu, Qing; Xia, Haiyan; Xia, Cindy Q; Yang, Qian; Doshi, Utkarsh; Li, Albert P; Liao, Mingxiang

2014-07-01

371

Development of Nitrogen Assimilation Enzymes during Photoautotrophic Growth of Chenopodium rubrum Suspension Cultures 1  

PubMed Central

Chenopodium rubrum cells were grown in suspension as a photoautotrophic culture with a 16 hour day. Cell growth had three phases: a 3-day lag, a 3-week logarithmic phase, and a 10-day stationary phase. Chlorophyll content increased steadily during log phase and reached a level of 0.5 to 0.6 mg Chl g?1 fresh weight. Soluble protein of the cells increased more rapidly from day 4 to day 12 than during midlog phase. Initially, ammonium was taken up in preference to nitrate. However, during the second two weeks of growth, ammonium and nitrate were taken up simultaneously; this period of growth was the time of highest rates of N uptake by the cultured cells. Glutamine synthetase had a high specific activity (17 ?mol·hour?1 mg?1 protein) in day 1 cells, and this level was sustained until midlog phase when it increased by 20%. Methyl viologen-dependent glutamate synthase specific activity increased rapidly in lag phase cells (day 4 = 10 ?mol·hour?1 mg?1 protein), but decreased by day 9 to about 50% of the peak and remained constant. NADH:nitrate reductase specific activity increased rapidly in lag phase cells and reached a plateau that lasted from day 4 to 14 (1 ?mol·hour?1 mg?1 protein). Methyl viologen-dependent nitrite reductase specific activity was high when assayed on day 5 and increased to a maximum on day 15 to 16 (12 ?mol·hour?1 mg?1 protein). NADPH- and NADH-dependent glutamate dehydrogenase specific activities remained rather constant throughout the growth cycle. The cells appeared to have developed photosynthetic competence and to have leaf-like activities of nitrogen assimilation enzymes. PMID:16663539

Campbell, Wilbur H.; Ziegler, Paul; Beck, Erwin

1984-01-01

372

Induction and Analysis of the Alkaloid Mitragynine Content of a Mitragyna speciosa Suspension Culture System upon Elicitation and Precursor Feeding  

PubMed Central

This study aimed to determine the effects of different concentrations and combinations of the phytohormones 2,4-dichlorophenoxy acetic acid (2,4-D), kinetin, 6-benzylaminopurine (BAP), and 1-naphthaleneacetic acid (NAA) on callus induction and to demonstrate the role of elicitors and exogenous precursors on the production of mitragynine in a Mitragyna speciosa suspension culture. The best callus induction was achieved from petiole explants cultured on WPM that was supplemented with 4?mg?L?1 2, 4-D (70.83%). Calli were transferred to liquid media and agitated on rotary shakers to establish Mitragyna speciosa cell suspension cultures. The optimum settled cell volume was achieved in the presence of WPM that contained 3?mg?L?1 2,4-D and 3% sucrose (9.47 ± 0.4667?mL). The treatment of cultures with different concentrations of yeast extract and salicylic acid for different inoculation periods revealed that the highest mitragynine content as determined by HPLC was achieved from the culture treated with 250?mg?L?1 yeast extract (9.275 ± 0.082?mg?L?1) that was harvested on day 6 of culturing; salicylic acid showed low mitragynine content in all concentrations used. Tryptophan and loganin were used as exogenous precursors; the highest level of mitragynine production was achieved in cultures treated with 3??M tryptophan and harvested at 6 days (13.226 ± 1.98?mg?L?1). PMID:24065873

Mohamad Zuldin, Nor Nahazima; Said, Ikram Md.; Mohd Noor, Normah; Zainal, Zamri; Jin Kiat, Chew; Ismail, Ismanizan

2013-01-01

373

Induction and analysis of the alkaloid mitragynine content of a Mitragyna speciosa suspension culture system upon elicitation and precursor feeding.  

PubMed

This study aimed to determine the effects of different concentrations and combinations of the phytohormones 2,4-dichlorophenoxy acetic acid (2,4-D), kinetin, 6-benzylaminopurine (BAP), and 1-naphthaleneacetic acid (NAA) on callus induction and to demonstrate the role of elicitors and exogenous precursors on the production of mitragynine in a Mitragyna speciosa suspension culture. The best callus induction was achieved from petiole explants cultured on WPM that was supplemented with 4?mg?L?¹ 2,4-D (70.83%). Calli were transferred to liquid media and agitated on rotary shakers to establish Mitragyna speciosa cell suspension cultures. The optimum settled cell volume was achieved in the presence of WPM that contained 3?mg?L?¹ 2,4-D and 3% sucrose (9.47 ± 0.4667?mL). The treatment of cultures with different concentrations of yeast extract and salicylic acid for different inoculation periods revealed that the highest mitragynine content as determined by HPLC was achieved from the culture treated with 250?mg?L?¹ yeast extract (9.275 ± 0.082?mg?L?¹) that was harvested on day 6 of culturing; salicylic acid showed low mitragynine content in all concentrations used. Tryptophan and loganin were used as exogenous precursors; the highest level of mitragynine production was achieved in cultures treated with 3? ?M tryptophan and harvested at 6 days (13.226 ± 1.98?mg?L?¹). PMID:24065873

Mohamad Zuldin, Nor Nahazima; Said, Ikram Md; Mohd Noor, Normah; Zainal, Zamri; Jin Kiat, Chew; Ismail, Ismanizan

2013-01-01

374

Peroxidase as a biochemical marker of maturity levels in potato (Solanum tuberosum) cultivars grown under short days  

Microsoft Academic Search

Peroxidase activity was determined in the leaves of early (70–80 days maturity), medium (90–100 days), and late maturing (100–120 days) potato (Solanum tuberosum) germplasm accessions at 30, 50, and 70 days after planting. Enzyme activity was lowest in early maturing cultures, whereas late maturing cultures exhibited the maximum activities with medium maturing ones showing intermediate values at all three stages

S. K. Sandhu; R. S. Marwaha; S. K. Pandey

2007-01-01

375

Guardian Culture Podcast  

NSDL National Science Digital Library

If you're not a culture vulture already, you may become one just by dipping into even one of the audio offerings here at the Guardian Culture podcast site. They have dozens of wonderful conversations covering the Edinburgh Fringe Festival, the creation of digital public space, and the Royal Opera House. First-time visitors should look at the Days in the Life at the Guardian, which offers "unique soundscapes from historic editions of the Guardian." The Everyday Moments podcasts feature "audio dramas for private performance." For example, "Everyday Moments 1" offers up a "playlet designed to be listened to in the early hours of the morning, in bed with a hot drink." [KMG

2012-08-13

376

Body of evidence: Period style, staging, and cultural studies  

Microsoft Academic Search

THEATRE AND FASHION: OSCAR WILDE TO THE SUFFRAGETTES. By Joel H. Kaplan and Sheila Stowell. Cambridge: Cambridge University Press, 1994; pp. ix + 220, $49.95; paper $17.95.PLEASURES TAKEN: PERFORMANCES OF SEXUALITY AND LOSS IN VICTORIAN PHOTOGRAPHS. By Carol Mavor. Durham and London: Duke University Press, 1995; pp. xii + 171; $47.95; paper $17.95.

Norman E. Schroder; Ronald E. Shields

1996-01-01

377

Cultural Complexity  

Microsoft Academic Search

This paper is divided into four parts. The first section (I.) consists of definitions which center on the concept of complexity. As a minimum, the terms, system, complexity, and adaptation as used in this paper need an explanation. The second section (II.) is a sketch of cultural complexity in the real world. I will use Pueblo tribal laws and other

Wolfgang Fikentscher

1998-01-01

378

Cultural Themes.  

ERIC Educational Resources Information Center

Part of a larger report on the Four Directions Project, an American Indian technology innovation project, this section includes 10 "pathfinders" to locating information on Native American cultural themes. The pathfinders were designed by students in the Graduate School of Library and Information Science at the University of Texas at Austin in…

Roy, Loriene, Comp.

379

Cultural differences  

Microsoft Academic Search

SUMMARY An examination of cultural influences and how they impact the incidence of alcohol abuse among the Inupiat peoples of Alaska. ARTICLE The region of Northwest Arctic Alaska is one of the oldest in terms of inhabitants of indigenous peoples in North America. Anthropological records show some areas in Northwest Arctic Alaska as being inhabited 600 years or more. The

Yumiko Arai

2000-01-01

380

Multiple periodicities in long-period variables  

NASA Astrophysics Data System (ADS)

The variety of types of variability is reviewed. Special attention is paid to observations and mathematical models of one-harmonic, multi-harmonic, multi-frequency, multi-shift and quasi-periodic pulsations (cf. Andronov 1994). Methods of local smoothing are discussed and compared: running parabolae (Andronov 1997), running trigonometric polynomials (Chinarova et al., 1994), asymptotic parabolae (Marsakova and Andronov, 1996), splines (Andronov 1995) and ordinary polynomials are compared. The weighted wavelet Z-transform (WWZ) by Foster (1996) is extended to obtain the time-averaged frequency-dependent WWZ periodogram and to make "self-tuning" analysis of the temporal variations of the WWZ best fits. The precise analytic expressions for the accuracy estimates and their simplifications are used to determine their numerical values. The methods are illustrated by application to the photographic and visual observations of the semi-regular and Mira-type stars. Among the highlights: switchings of the pulsational period from one value to another; biperiodic pulsations; long-term modulation of the pulsational curve (sometimes variations of the amplitude and phase, sometimes reverse of the asymmetry); evolutionary period variations and corresponding changes of the photometric characteristics. The detailed description of the methods and their applications to concrete stars are presented in the associated posters (P2-07, P2-16, P2-19).

Andronov, I. L.

381

A cultural, customizable and prefabricated housing grammar for Casablanca  

E-print Network

Proposing an innovative design grammar linking prefabrication, customization and cultural adaptability, this thesis addresses the present day housing deficit and lack of architectural identity in Casablanca, Morocco. The ...

Akkar, Ghita

2011-01-01

382

POPULATION DISTRIBUTION DURING THE DAY  

SciTech Connect

Population distribution during the day can be defined as distribution of population in an area during the daytime hours. However, a precise definition of daytime hours is challenging given the geographic variability in the length of a day or daylight hours. The US Census Bureau used "normal business hours" as the span of time to describe daytime population. Given that Censuses typically estimates residential population, it represents a nighttime population distribution. In that respect, daytime population in an area may be broadly defined as distribution of population at times other than when they are expected to be at their residences at night which extends the duration from business hours to include the evening hours as well.

Bhaduri, Budhendra L [ORNL

2008-01-01

383

STS-70 flight: Day 5  

NASA Astrophysics Data System (ADS)

The fifth day of the STS-70 Space Shuttle Discovery mission is contained on this video. The crew continues working on experiments, such as the Space Tissue Loss Analysis and the Bioreactor Development System. CNN reporter, John Holliman, interviewed the flight crew and the crew also answered questions posed by Internet users while on NASA's Shuttle Web. There are brief views of Earth's surface included.

1995-07-01

384

The early days of incineration  

SciTech Connect

Landfills reaching capacity, beaches fouled with trash, neighborhood residents protesting waste disposal sites in their backyards, and municipalities forced to recycle. Sound familiar? These issues might have been taken from today`s headlines, but they were also problems facing mechanical engineers a century ago. Conditions such as these were what led engineers to design the first incinerators for reducing the volume of municipal garbage, as well as for producing heat and electricity. The paper discusses these early days.

Valenti, M.

1995-05-01

385

Astronomy Picture of the Day  

NSDL National Science Digital Library

Each day a new, beautiful image or picture of our intriguing atmosphere is presented on this Web site, created by NASA, along with a short description written by an expert. By selecting Discover the Cosmos, viewers can visit the archives, which features all the images presented since June 1995. In the Index, the images are also organized into the topics: Cosmos, Solar System, Space Technology, and People; making it easy for educators to incorporate them into lesson plans.

386

Cultural selves.  

PubMed

Recent cross-cultural studies of child development reveal that child rearing, while strikingly culturally variable, is everywhere designed to make the child's experience of important lessons constant, to link those lessons to emotional arousal, and to connect them to evaluations of the child's goodness and badness. These claims are illustrated from research on Americans, Chinese, Germans, Gusii (Kenya), Ifaluk (Micronesia), and Inuit (Baffin Island). These three universal features of child rearing accomplish what is a highly specialized task. Constancy of experience alters synaptic connections to grant the pattern of their firing especially high-resolution, so that the lessons to be learned are unmistakable ones. Accompanied by emotional arousal, these lessons are especially motivating and unforgettable. Brought home with evaluations of the learner's goodness and badness, these lessons are even more motivating and unforgettable. Children get the point of the lesson, enact it once they get it, and remember to enact it on subsequent occasions. Cultural models of child rearing, thus, exploit the neural capacities of the children so reared, to achieve a result, human adulthood, that could not be accomplished by the human brain alone. From exposure to these practices result distinctive cultural selves. These selves are partly implicit, based on the largely unmarked practices designed to make children's experience of important lessons constant and these lessons arousing, and partly explicit, based on the labeling and other marking that connects these lessons to evaluations of children's goodness and badness. The conscious, self-reflective self that emerges from such explicit evaluation lays the basis for identity-everywhere profoundly culturally shaped, infused with powerful evaluative meanings, and itself highly motivating. PMID:14625360

Quinn, Naomi

2003-10-01

387

STS-79 Flight Day 9  

NASA Technical Reports Server (NTRS)

On this ninth day of the STS-79 mission, the flight crew, Cmdr. William F. Readdy, Pilot Terrence W. Wilcutt, Mission Specialists, Thomas D. Akers, Shannon Lucid, Jay Apt, and Carl E. Walz having completed five days of joint operations between the American astronauts and the Russian cosmonauts are seen flying solo once again after undocking from the Mir Space Station. As Atlantis/Mir flew over the Ural Mountains of central Asia, the docking hooks and latches that joined the vehicles together were commanded open and Atlantis drifted slowly away from Mir. Wilcutt then initiated a tail-forward fly-around of the Russian space station. After one and one-half revolutions around Mir, Atlantis' jets were fired in a separation maneuver to enable Atlantis to break away from Mir. On board Atlantis, the six-member crew is settling back into its normal routine with a fairly light schedule for the remainder of the day. Early in the morning as Atlantis flew over the United States, the crew took time to talk with anchors for the CBS Up to the Minute' network news broadcast.

1996-01-01

388

Biomedical advances from tissue culture.  

PubMed

The demonstration that the "dedifferentiation" of cells commonly observed in the early days of tissue culture was due to selective overgrowth of fibroblasts led to enrichment culture techniques (alternate animal and culture passage) designed to give a selective advantage to functionally differentiated tumor cells. These experiments resulted in the derivation of a large number of functionally differentiated clonal strains of a range of cell types. These results gave rise to the hypothesis that cells in culture accurately represent cells in vivo but without the complex in vivo environment. This concept has been strengthened with the development of hormonally defined culture media in combination with functionally differentiated clonal cell lines, which have augmented the potential of tissue culture studies. The use of hormonally defined media in place of serum-supplemented media demonstrates that hormonal responses and dependencies can be discovered in culture. Discoveries of hormonal dependencies of cancer cells has led to therapies targeting intracellular signaling pathways while discoveries of hormonal responses of pluripotent cells are helping to identify the potential application of stem cells. In these and other ways tissue culture technology will continue to contribute to solving problems of human health. PMID:23828098

Okamoto, Tetsuji; Sato, J Denry; Barnes, David W; Sato, Gordon H

2013-12-01

389

Method for degree/days forecasting proves itself  

SciTech Connect

The long-range meterological/engineering method for predicting heating degree/days can now be evaluated on the basis of nearly 40 years of experience. A comparison of predicted vs. actual degree/days over this period shows that it is a highly accurate method. This paper presents a review of the primary techniques long range forecasters use, focusing on the meterological/engineering method.

Brosche, L.E

1990-05-28

390

The 90 day oscillation of Jupiter's Great Red SPOT revisited  

Microsoft Academic Search

We have used a large set of ground-based images with good temporal sampling obtained from 1993 to early 1999, complemented with Hubble Space Telescope archived images, to address the current status and behavior of the 90-day longitudinal oscillations of the Jovian Great Red Spot. Our study confirms the existence of the oscillations with a mean period of 89.74 days and

J. M. Trigo-Rodriguez; A. Sanchez-Lavega; J. M. Gomez; J. Lecacheux; F. Colas; I. Miyazaki

1999-01-01

391

Concentrations of salinomycin in eggs and tissues of laying chickens fed medicated feed for 14 days followed by withdrawal for 3 days  

Microsoft Academic Search

Laying chickens were fed medicated feed containing various concentrations of sodium salinomycin (SAL) for 14 days followed by a 3 day withdrawal period. Eggs, collected during treatment and withdrawal, tissues and ovarian yolk of birds slaughtered after 0, 1, and 3 days’ withdrawal were extracted and analysed by high performance liquid chromatography (HPLC). Tissues, ovarian yolk and freeze?dried egg albumen

M. Humayoun Akhtar; M. Atef Ahmed Shehata

1996-01-01

392

Periodic chiral structures  

NASA Technical Reports Server (NTRS)

The electromagnetic properties of a structure that is both chiral and periodic are investigated using coupled-mode equations. The periodicity is described by a sinusoidal perturbation of the permittivity, permeability, and chiral admittance. The coupled-mode equations are derived from physical considerations and used to examine bandgap structure and reflected and transmitted fields. Chirality is observed predominantly in transmission, whereas periodicity is present in both reflection and transmission.

Jaggard, Dwight L.; Engheta, Nader; Pelet, Philippe; Liu, John C.; Kowarz, Marek W.; Kim, Yunjin

1989-01-01

393

The CV Period Minimum  

E-print Network

Using improved, up-to-date stellar input physics tested against observations of low-mass stars and brown dwarfs we calculate the secular evolution of low-mass donor CVs, including those which form with a brown dwarf donor star. Our models confirm the mismatch between the calculated minimum period (P_min ~ 70min) and the observed short-period cut-off (~80min) in the CV period histogram. Theoretical period distributions synthesized from our model sequences always show an accumulation of systems at the minimum period, a feature absent in the observed distribution. We suggest that non-magnetic CVs become unobservable as they are effectively trapped in permanent quiescence before they reach P_min, and that small-number statistics may hide the period spike for magnetic CVs. We calculate the minimum period for high mass transfer rate sequences and discuss the relevance of these for explaining the location of CV secondaries in the orbital period - spectral type diagram. We also show that a recently suggested revised mass-radius relation for low-mass main-sequence stars cannot explain the CV period gap.

Ulrich Kolb; Isabelle Baraffe

1998-10-20

394

The Periodic Table  

NSDL National Science Digital Library

The following will provide you with a brief overview of the Periodic Table of Elements, as well as some interesting facts about the elements. There are also some games which will help you practice the names and symbols of the elements. A worksheet may be provided for you to record your newfound knowledge. Please follow the directions and links below to enlighten yourself on the wonders of the Periodic Table. If provided, don't forget to fill in your worksheet as you go... Part A: Who, what, where and when? Read a brief History of the Periodic Table:History of the PT2. Part B: Interactive Periodic Tables: Find physical ...

Cutting, Mrs.

2011-01-05

395

Catechin production in cultured Polygonum hydropiper cells  

Microsoft Academic Search

Callus and suspension-cultured cells were induced from hypocotyls of Polygonum hydropiper seedlings. Both the callus and suspension-cultured cells produced mainly (+)-catechin accompanied by (?)-epicatechin and (?)-epicatechin-3-O-gallate. The (+)-catechin production of suspension-cultured cells increased with cell growth and reached the maximal value (29.0mgg?1 dry wt) after 6days from the start of subculture. This is the highest value of (+)-catechin content among

Kanji Ono; Mayumi Nakao; Masao Toyota; Yoshimi Terashi; Masashi Yamada; Tetsuya Kohno; Yoshinori Asakawa

1998-01-01

396

Responses of the lower thermospheric temperature to the 9 day and 13.5 day oscillations of recurrent geomagnetic activity  

NASA Astrophysics Data System (ADS)

of the lower thermospheric temperature to the 9 day and 13.5 day oscillations of recurrent geomagnetic activity and solar EUV radiation have been investigated using neutral temperature data observed by the TIMED/SABER (Thermosphere Ionosphere Mesosphere Energetics and Dynamics/Sounding of the Atmosphere using Broadband Emission Radiometry) instrument and numerical experiments by the NCAR-TIME-GCM (National Center for Atmospheric Research-thermosphere-ionosphere-mesosphere electrodynamics-general circulation model). The TIMED/SABER data analyzed were for the period from 2002 to 2007 during the declining phase of solar cycle 23. The observations show that the zonal mean temperature in the lower thermosphere oscillated with periods of near 9 and 13.5 days in the height range of 100-120 km. These oscillations were more strongly correlated with the recurrent geomagnetic activity than with the solar EUV variability of the same periods. The 9 day and 13.5 day oscillations of lower thermospheric temperature had greater amplitudes at high latitudes than at low latitudes; they also had larger amplitudes at higher altitudes, and the oscillations could penetrate down to ~105 km, depending on the strength of the recurrent geomagnetic activity for a particular time period. The data further show that the periodic responses of the lower thermospheric temperature to recurrent geomagnetic activity were different in the two hemispheres. In addition, numerical experiments have been carried out using the NCAR-TIME-GCM to investigate the causal relationship between the temperature oscillations and the geomagnetic activity and solar EUV variations of the same periods. Model simulations showed the same periodic oscillations as those seen in the observations when the real geomagnetic activity index, Kp, was used to drive the model. These numerical results show that recurrent geomagnetic activity is the main cause of the 9 day and 13.5 day variations in the lower thermosphere temperature, and the contribution from solar EUV variations is minor. Furthermore, we also found that consecutive coronal mass ejection events could cause long-duration enhancements in the lower thermospheric temperature that strengthen the 9 day and 13.5 day signals, and this kind of phenomenon mostly occurred between 2002 and 2005 during the declining phase of solar cycle 23.

Jiang, Guoying; Wang, Wenbin; Xu, Jiyao; Yue, Jia; Burns, Alan G.; Lei, Jiuhou; Mlynczak, Martin G.; Rusell, James M.

2014-06-01

397

Production of 5-hydroxy-7-methoxy-4-methylphthalide in a culture of Penicillium crustosum.  

PubMed

The chemical reactions carried out by microorganisms have been used as a tool in modern chemistry. This paper reports the production of mycophenolic acid and a new phthalide by the endophytic fungus Penicillium crustosum obtained from coffee seeds. The fungus was cultivated in a liquid medium for a period of seven days and after that the culture medium was divided into four treatments: A, B, C and D, to which different organic substances were added. Treatment A was maintained as the control to evaluate the occurrence of biotransformation. Organic acids were added to the culture media of treatments B (ferulic and quinic acids) and C [cinnamic and 3,4-(methylenedioxy) cinnamic acids], and caffeine was added in the treatment D. All these organic compounds were dissolved in DMSO, and the fermentation was maintained for more 13 days, totalizing 20 days. Mycophenolic acid was isolated from the culture with no added acids (treatment A). Mycophenolic acid and a new phthalide, 5-hydroxy-7-methoxy-4-methylphthalide were isolated from treatments B and C, and mycophenolic acid and caffeine (added to the culture medium) were isolated from treatment D. The structures were determined by NMR techniques and confirmed by MS and MS/MS techniques. PMID:23780307

Valente, Angela M M P; Ferreira, Antonio G; Daolio, Cristina; Rodrigues Filho, Edson; Boffo, Elisangela F; Souza, Antonia Q L; Sebastianes, Fernanda L S; Melo, Itamar S

2013-01-01

398

The Somali Bantu: Their History and Culture. Culture Profile.  

ERIC Educational Resources Information Center

This booklet is a basic introduction to the people, history, and cultures of the Somali Bantu. It is designed primarily for service providers and others assisting Somali Bantu refugees in their new communities in the United States. It focuses on: "Introduction"; "Land"; "People" (place in society and social structures); "History" (colonial period,…

Lehman, Dan Van; Eno, Omar

399

[Flower initiation by cycloheximide in the long-day plant Hyoscyamus niger during short-days].  

PubMed

Cycloheximide (CH) was applied selectively either to the shoot apex or by infiltration to the leaves of the long-day plant Hyoscyamus niger in order to investigate whether this inhibitor has an effect on the synthesis of a floral stimulus in the leaves. Treatment of the shoot apex with CH caused inhibition of the photoperiodic induction. In contrast, when CH was applied to leaves, initiation of flowering was observed under short-day conditions. The drug yielded optimum initiating effects at concentrations of 10(-5)-3·10(-5) M, inducing flowering of almost 60% of the plants. Daily infiltration over a period of up to 4 days decreased the rate of flower initiation. The effect of CH was shown to be additive to a photoperiodic induction, even to a sub-threshold induction, but not to 2-thiouracil mediated induction. In no case did the presence of additional untreated leaves on the plants suppress CH-mediated flower induction. Treatment of the leaves with chloramphenicol (10(-6)-2(-)10(-4) M) or puromycin (5·10(-6)-2·10(-4) M) caused no initiating response. The results are interpreted to mean that the presence of CH in the leaves may lead to the synthesis of a floral stimulus also under short-day conditions. This finding is similar to that reported previously in the case of the inductive effect of 2-thiouracil. PMID:24469780

Klautke, S; Rau, W

1973-03-01

400

Cultural Diplomacy  

NSDL National Science Digital Library

The Demos group in Britain describes itself as "the think tank for everyday democracy", and they have published a number of intelligent research reports and briefs as of late. One of their recent reports, released in February 2007, deals with the world of cultural diplomacy. Authored by Kirsten Bound, Rachel Briggs, John Holden, and Samuel Jones, the paper's central premise is that "the huge global reach and potential of Britain's world class artistic and cultural assets should be at the heart of government relationship building abroad." It's an interesting concept, and one that is developed over the course of this work through citing specific examples and also by pointing a way to forward efforts in this particular niche of public policy and international relations.

401

Surgical Resident for a Day  

NSDL National Science Digital Library

Students act as surgical residents for the day. Working in teams, they use surgical instruments to complete tasks that are inside of a box, hidden from direct view. They are able to see inside of the box with the help of a "laparoscope" (webcam and flashlight). This engaging activity shows students one application of engineered medical instrumentation and gives them first-hand experience in seeing how form fits function. They also learn that an engineer's job does not end with a finished product because s/he must train others to use the device correctly.

Techtronics Program

402

STS-88 Day 06 Highlights  

NASA Technical Reports Server (NTRS)

On this sixth day of the STS-88 mission, the flight crew, Commander Robert D. Cabana, Pilot Frederick W. Sturckow, and Mission Specialists Nancy J. Currie, James H. Newman, Jerry L. Ross, and Sergei Krikalev are awakened by Dwight Yokum's "Streets of Bakersfield," requested by the wife of Pilot Rick Sturckow, a California native. Cabana and Sturckow fire Endeavour's primary reaction control jets to raise the altitude of the International Space Station by about 5-1/2 statute miles. Later on Cabana, Sturckow and Currie are interviewed by the ABC News/Discovery Channel and MSNBC.

1998-01-01

403

STS-75 Flight Day 7  

NASA Technical Reports Server (NTRS)

On this seventh day of the STS-75 mission, the flight crew, Cmdr. Andrew Allen, Pilot Scott Horowitz, Payload Cmdr. Franklin Chang-Diaz, Payload Specialist Umberto Guidoni (Italy), and Mission Specialists Jeffrey Hoffman, Maurizio Cheli (ESA) and Claude Nicollier (ESA), are shown performing several of the United States Microgravity Payload-3 (USMP-3) experiments. There is an in-orbit interview by several of the astronauts with newspaper reporters. An announcement is made by Mission Control that Cmdr. Allen has become the first American Astronaut to log 1000 flight hours in space, with Payload Cmdr. Franklin Chang-Diaz coming in second.

1996-01-01

404

STS-95 Day 02 Highlights  

NASA Technical Reports Server (NTRS)

On this second day of the STS-95 mission, the flight crew, Cmdr. Curtis L. Brown, Pilot Steven W. Lindsey, Mission Specialists Scott E. Parazynski, Stephen K. Robinson, and Pedro Duque, and Payload Specialists Chiaki Mukai and John H. Glenn, are seen preparing a glovebox device in the middeck area of Discovery, an enclosed research facility that will support numerous science investigations throughout the mission. Payload Specialist John Glenn, activates the Microgravity Encapsulation Process experiment (MEPS). This experiment will study the formation of capsules containing two kinds of anti-tumor drugs that could be delivered directly to solid tumors with applications for future chemotherapy treatments and the pharmaceutical industry.

1998-01-01

405

Science Sampler: Periodic Table  

NSDL National Science Digital Library

Teaching the periodic table can be a mundane task filled with repetition and rote memorization. The techniques for engaging activities outlined in this article will help students become familiar with the periodic table in fun and exciting ways through mediums such as games, silly stories, jokes, puzzles, and songs.

Galus, Pamela

2004-01-01

406

Periodic orbits and stability  

Microsoft Academic Search

A review is presented of periodic orbits which are of interest to dynamical astronomy, and their relation to actual systems is considered. In particular, the paper reviews periodic orbits in planetary systems with two or more planets, in the asteroid system, in stellar systems, and in the motion of a star in various types of galaxies. Most systems are close

John D. Hadjidemetriou

1988-01-01

407

The Living Periodic Table  

ERIC Educational Resources Information Center

To help make the abstract world of chemistry more concrete eighth-grade students, the author has them create a living periodic table that can be displayed in the classroom or hallway. This display includes information about the elements arranged in the traditional periodic table format, but also includes visual real-world representations of the…

Nahlik, Mary Schrodt

2005-01-01

408

3 CFR 8458 - Proclamation 8458 of November 20, 2009. Thanksgiving Day, 2009  

Code of Federal Regulations, 2010 CFR

...contributions of Native Americans, who helped the early...tragedy and triumph, Americans have come together to celebrate Thanksgiving. As Americans, we hail from every part...traditions from every culture, Thanksgiving Day...

2010-01-01

409

American History Since 1945: A Framework for Periodization. Occasional Paper.  

ERIC Educational Resources Information Center

Teachers can approach U.S. history since 1945 in two time periods. The first is "Postwar America" (1945-1973), the playing out of the economic, cultural, social, cultural/intellectual, and foreign policy thrusts and attitudes that grew out of the Great Depression and World War II. The second era, "Recent America" (1973-present), comprises an…

Keller, Morton

410

One Day Every 216 Years, Three Days Each Decan. Rebirth Cycle of Pythagoras, Phoenix, Hazon Gabriel, and Christian Dogma of Resurrection Can Be Explained by the Metonic Cycle  

NASA Astrophysics Data System (ADS)

This article explains how the Metonic cycle is at the base of the period of 216 years Pythagoras believed in being reborn after that period. It shows how this period calendrically is related to other mythological worldviews such as the Phoenix myth, the Hebrean Hazon Gabriel, and the Christian dogma of resurrection on the third day.

Rothwangl, S.

2009-08-01

411

The Pictorial Periodic Table  

NSDL National Science Digital Library

This online periodic table of the elements is a fabulous find for students of chemistry. On the main page, a clickable periodic table allows users to choose an element and then view a page listing that element's electron configuration, atomic weight and number, isotopes and product elements, and a number of other physical properties such as ionization potential and boiling and melting points. Each entry is extremely thorough and contains links to related elements. The Pictorial Periodic Table is also easily searchable by atomic and covalent radius, density, boiling and melting point, electronegativity, ionization potential, heat properties, and atomic weight or number. In addition, users can perform keyword searches. Graphs and tables of element properties, alternative styles of periodic table (e.g., spiral, pyramid), a special page on isotopic properties, a printable table, and links to other periodic table pages are among the wealth of information provided. The site is provided by the Chemlab server of Phoenix College, AZ.

Heilman, Chris.

2005-11-01

412

Cultural neurolinguistics  

PubMed Central

As the only species that evolved to possess a language faculty, humans have been surprisingly generative in creating a diverse array of language systems. These systems vary in phonology, morphology, syntax, and written forms. Before the advent of modern brain-imaging techniques, little was known about how differences across languages are reflected in the brain. This chapter aims to provide an overview of an emerging area of research — cultural neurolinguistics — that examines systematic cross-cultural/crosslinguistic variations in the neural networks of languages. We first briefly describe general brain networks for written and spoken languages. We then discuss language-specific brain regions by highlighting differences in neural bases of different scripts (logographic vs. alphabetic scripts), orthographies (transparent vs. nontransparent orthographies), and tonality (tonal vs. atonal languages). We also discuss neural basis of second language and the role of native language experience in second-language acquisition. In the last section, we outline a general model that integrates culture and neural bases of language and discuss future directions of research in this area. PMID:19874968

Chen, Chuansheng; Xue, Gui; Mei, Leilei; Chen, Chunhui; Dong, Qi

2010-01-01

413

Phenotypic Characterization of Prostate Cancer LNCaP Cells Cultured within a Bioengineered Microenvironment  

PubMed Central

Biophysical and biochemical properties of the microenvironment regulate cellular responses such as growth, differentiation, morphogenesis and migration in normal and cancer cells. Since two-dimensional (2D) cultures lack the essential characteristics of the native cellular microenvironment, three-dimensional (3D) cultures have been developed to better mimic the natural extracellular matrix. To date, 3D culture systems have relied mostly on collagen and Matrigel™ hydrogels, allowing only limited control over matrix stiffness, proteolytic degradability, and ligand density. In contrast, bioengineered hydrogels allow us to independently tune and systematically investigate the influence of these parameters on cell growth and differentiation. In this study, polyethylene glycol (PEG) hydrogels, functionalized with the Arginine-glycine-aspartic acid (RGD) motifs, common cell-binding motifs in extracellular matrix proteins, and matrix metalloproteinase (MMP) cleavage sites, were characterized regarding their stiffness, diffusive properties, and ability to support growth of androgen-dependent LNCaP prostate cancer cells. We found that the mechanical properties modulated the growth kinetics of LNCaP cells in the PEG hydrogel. At culture periods of 28 days, LNCaP cells underwent morphogenic changes, forming tumor-like structures in 3D culture, with hypoxic and apoptotic cores. We further compared protein and gene expression levels between 3D and 2D cultures upon stimulation with the synthetic androgen R1881. Interestingly, the kinetics of R1881 stimulated androgen receptor (AR) nuclear translocation differed between 2D and 3D cultures when observed by immunofluorescent staining. Furthermore, microarray studies revealed that changes in expression levels of androgen responsive genes upon R1881 treatment differed greatly between 2D and 3D cultures. Taken together, culturing LNCaP cells in the tunable PEG hydrogels reveals differences in the cellular responses to androgen stimulation between the 2D and 3D environments. Therefore, we suggest that the presented 3D culture system represents a powerful tool for high throughput prostate cancer drug testing that recapitulates tumor microenvironment. PMID:22957009

Sieh, Shirly; Taubenberger, Anna V.; Rizzi, Simone C.; Sadowski, Martin; Lehman, Melanie L.; Rockstroh, Anja; An, Jiyuan; Clements, Judith A.; Nelson, Colleen C.; Hutmacher, Dietmar W.

2012-01-01

414

Biomass production and nutrient removal potential of water hyacinth cultured in sewage effluent  

SciTech Connect

Growth and nutrient uptake of water hyacinth (Eichhornia crassipes (Mart Solms)) cultured in sewage effluent were measured over a period of one year in a prototype wastewater treatment system which has been in operation at Walt Disney World near Orlando, Florida. Annual productivity of water hyacinth cultured in primary sewage effluent (Channel II) was found to be in the range of 5 to 27 g dry wt/m/sup 2/ day (23.6 dry tons/acre yr). Average growth rate during the months of May through October 1982 for hyacinth cultured in Channel II (primary sewage effluent) and Channel I (treated primary sewage effluent leaving Channel II) was about 16 g dry wt/m/sup 2/ (27 dry tons/acre yr), compared to the growth rate of 13 g dry wt/m/sup 2/ (22 dry tons/acre yr) for hyacinths cultured in secondary sewage effluent. Plants cultured in secondary sewage effluent generally had longer roots than the plants cultured in primary sewage effluent. A significant relationship was observed between the growth rate of hyacinth and the solar radiation. N and P concentration of the plant tissue were higher in the hyacinths cultured during winter months compared to the plants grown in summer months. Average N and P concentration of the plants cultured im primary sewage effluent were found to be 3.7% N and 0.94% P, respectively, while the plants cultured in secondary sewage effluent had a total N and P content of 2.8% N and 0.79% P. Nutrient ratios of the major plant nurtrients were found to be approximately the same as the nutrient ratios in the sewage effluent. Annual N and P uptake rates of hyacinth cultured in sewage effluent were found to be in the range of 1176 to 1193 kg N/ha yr and 321 to 387 kg P/ha yr, respectively.

Reddy, K.R.; Hueston, F.M.; McKinn, T.

1985-05-01

415

STS-90 Day 14 Highlights  

NASA Technical Reports Server (NTRS)

On this fourteenth day of the STS-90 mission, the flight crew, Cmdr. Richard A. Searfoss, Pilot Scott D. Altman, and Mission Specialists Richard M. Linnehan, Dafydd Rhys Williams and Kathryn P. Hire, and Payload Specialists Jay C. Buckey and James A. Pawelczyk focus on the efforts of Neurolab's Neuronal Plasticity Team to better understand how the adult nervous system adapts to the new environment of space. Columbia's science crew -- Mission Specialists Rick Linnehan and Dave Williams and Payload Specialists Jay Buckey and Jim Pawelczyk -- perform the second and final in-flight dissections of the adult male rats on board. The crew euthanizes and dissects nine rats and remove the vestibular or balance organs of the inner ear; the cerebellum, the part of the brain critical for maintaining balance and for processing information from the limbs so they can be moved smoothly; and the cerebrum, one part of which controls automatic functions such as body temperature regulation and the body's internal clock, and the cortical region that controls cognitive functions such as thinking. The first dissection, which was performed on the second day of the flight, went extremely well, according to Neurolab scientists.

1998-01-01

416

STS-73 flight day 6  

NASA Astrophysics Data System (ADS)

On this sixth day of the STS-73 sixteen day mission, the crew Cmdr. Kenneth Bowersox, Pilot Kent Rominger, Payload Specialists Albert Sacco and Fred Gregory, and Mission Specialists Kathryn Thornton, Catherine 'Cady' Collman, and Michael Lopez-Alegria are shown performing several of the spaceborne experiments onboard the United States Microgravity Lab-2 (USML-2). The experiments shown include the Protein Crystal Growth (PCG) experiment, the Astroculture(tm)(ASC) experiment, the Drop Physics Module (DPM) experiment, and the Surface Tension Driven Convection Experiment (STDCE). The High-Packed Digital Television (HI-PAC) system is further tested and an in-orbit interview with Lopez-Alegria by NBC Nightside is conducted. The entire flightcrew salutes the 5th game of the World Series between the Atlanta Braves and Cleveland Indians by pretending to throw out the first ball of the game through a downlink to the stadium. Earth views taken from the payload bay cameras include some cloud cover, oceans, land masses, and the Nile River and the Red Sea.

1995-10-01

417

Biotic elicitor enhanced production of psoralen in suspension cultures of Psoralea corylifolia L.  

PubMed Central

Cell cultures of Psoralea corylifolia L. were established from the leaf disk derived callus. The effect of different biotic elicitors prepared from the fungal extract (Aspergillus niger and Penicillium notatum), yeast extract and chitosan with different concentrations was studied. The increased synthesis of psoralen in 16-day old cell cultures under 16 h of light and 8 h of dark period was studied. Elicitation of psoralen in A. niger elicitor treated cells was found 9-fold higher over control cells. Treating the cells with P. notatum, yeast extract and chitosan elicitors lead to four to seven-fold higher psoralen accumulation over control cells. The extract of A. niger at 1.0% v/v increased the significant accumulation of psoralen (9850 ?g/g DCW) in the cultured cells. Our study clearly shows that all the elicitors had the potential to increase the accumulation of psoralen but the A. niger elicitor at 1.0% v/v induced maximum accumulation.

Ahmed, Syed Abrar; Baig, Mirza Mushtaq Vaseem

2014-01-01

418

Synoptic classification of lower troposphere profiles for dust days  

NASA Astrophysics Data System (ADS)

The goal of this research is to identify meteorological characteristics distinguishing dust storm days from no-dust days. During this pioneering research, the vertical profiles of temperature, wind components, and humidity for days with dust and with no dust were compared and analyzed in order to identify features accompanying dusty conditions. Three data sets, all for the 49 year period of 1958-2006, were used. The first was the daily dust observations at Tel Aviv, Israel. The second was the eastern Mediterranean daily surface synoptic classification. The third was the vertical data over the eastern Mediterranean grid point closest to Tel Aviv at 32.5°N, 35°E. The two latter data sets were based on the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis. The meteorological parameters were averaged over the 49 year period by season, pressure level, synoptic-type, and dust and no-dust days. Prominent differences between dust and no-dust days were found for relative humidity and wind components during fall, winter, and spring at 700, 600, and 500 hPa levels. Relative humidity was found to be higher during dust episodes. This result, linking dust and humidity, looks promising for future research on connection between desert dust, ice nuclei, and precipitation. The governing eastern Mediterranean synoptic systems are low-pressure systems. For these systems, vertical velocity (Omega) values are negative. It was found that absolute Omega values were higher on dust days than on days with no dust. Southerly and westerly components of wind were found to have higher values during dust days. It was found that for most synoptic systems, temperature below the 700 hPa level was equal or higher during dust days. Thus, during dust days the lower troposphere is unstable.

Ganor, E.; Stupp, A.; Osetinsky, I.; Alpert, P.

2010-06-01

419

Rational Philanthropy and Cultural Capital  

Microsoft Academic Search

This paper develops a theory of rational philanthropyin forming ``cultural capital'' and aestheticpreferences. The study maintains that changes incapital market opportunities provide investmentmotives for private and public giving. Theseimplications are examined in a Vector Autoregressive(VAR) model of funding in the arts and humanities inthe United States for the period 1966 to 1997. Theresults suggest private philanthropy increased inresponse to both

Carlos A. Ulibarri

2000-01-01

420

Privatisation of Italian Cultural Heritage  

Microsoft Academic Search

Italy is home to much of the European cultural heritage, including artistic, archaeological, architectural and environmental heritage. Articles 7 and 22 (now 33), introduced in the Financial Act 2002 (now Law 112\\/2002) by the current Italian government, are privatising part of it. Already, objects from the mediaeval period to the 20th century have been sold to international investment firms and

Roland Benedikter

2004-01-01

421

Culturing Conceptions: From First Principles  

ERIC Educational Resources Information Center

Over the past three decades, science educators have accumulated a vast amount of information on conceptions--variously defined as beliefs, ontologies, cognitive structures, mental models, or frameworks--that generally (at least initially) have been derived from interviews about certain topics. During the same time period, cultural studies has…

Roth, Wolff-Michael; Lee, Yew Jin; Hwang, SungWon

2008-01-01

422

Macro-evolutionary studies of cultural diversity: a review of empirical studies of cultural transmission and cultural adaptation  

PubMed Central

A growing body of theoretical and empirical research has examined cultural transmission and adaptive cultural behaviour at the individual, within-group level. However, relatively few studies have tried to examine proximate transmission or test ultimate adaptive hypotheses about behavioural or cultural diversity at a between-societies macro-level. In both the history of anthropology and in present-day work, a common approach to examining adaptive behaviour at the macro-level has been through correlating various cultural traits with features of ecology. We discuss some difficulties with simple ecological associations, and then review cultural phylogenetic studies that have attempted to go beyond correlations to understand the underlying cultural evolutionary processes. We conclude with an example of a phylogenetically controlled approach to understanding proximate transmission pathways in Austronesian cultural diversity. PMID:21199844

Mace, Ruth; Jordan, Fiona M.

2011-01-01

423

Calculation of thermal inertia from day-night measurements separated by days or weeks  

NASA Technical Reports Server (NTRS)

The calculation of the thermal inertia of an area from remotely sensed data involves the measurement of the surface albedo and the determination of the diurnal temperature range of the surface in image format. The temperature-range image is calculated from surface thermal radiance measured as near as possible to the time of maximum surface temperature and (predawn) surface minimum temperature. Ordinarily, both surface-temperature images are measured within the same 12-hour period. If this is impossible, then the measurement of the predawn surface radiance within a 36-hour period has been considered to be adequate, although less satisfactory. The problems arising in connection with the impossibility to conduct measurements within the same 12-hour period are studied, and suggestions are made for cases in which only relative thermal inertia across an area is required. In such cases investigators should consider using the best day-night temperature pairs available, even if not acquired within a 12 to 36 hour period.

Kahle, A. B.; Alley, R. E.

1985-01-01

424

EAST ASIAN LANGUAGESEAST ASIAN LANGUAGESEAST ASIAN LANGUAGES & CULTURES& CULTURES& CULTURES  

E-print Network

and Culture EALC 380: Cultural Topics in East Asian Literature EALC 460: Love, Self, and Gender in Japanese of the languages, linguistics, literature, thought, and civilizations of China, Japan, and Korea. Students: Korean Literature and Culture -- The history of Korean literature and culture from the ancient

Krylov, Anna I.

425

Periodized Daubechies wavelets  

SciTech Connect

The properties of periodized Daubechies wavelets on [0,1] are detailed and counterparts which form a basis for L{sup 2}(R). Numerical examples illustrate the analytical estimates for convergence and demonstrated by comparison with Fourier spectral methods the superiority of wavelet projection methods for approximations. The analytical solution to inner products of periodized wavelets and their derivatives, which are known as connection coefficients, is presented, and their use ius illustrated in the approximation of two commonly used differential operators. The periodization of the connection coefficients in Galerkin schemes is presented in detail.

Restrepo, J.M.; Leaf, G.K.; Schlossnagle, G.

1996-03-01

426

Genealogy of periodic trajectories  

SciTech Connect

The periodic solutions of non-integrable classical Hamiltonian systems with two degrees of freedom are numerically investigated. Curves of periodic families are given in plots of energy vs. period. Results are presented for this Hamiltonian: H = 1/2(p/sub x//sup 2/ + p/sub y//sup 2/) + 1/2 x/sup 2/ + 3/2 y/sup 2/ - x/sup 2/y + 1/12 x/sup 4/. Properties of the families of curves are pointed out. (LEW)

de Adguiar, M.A.M.; Maldta, C.P.; de Passos, E.J.V.

1986-05-20

427

Celtic Art and Cultures  

NSDL National Science Digital Library

The Celtic Art and Cultures Website was originally created for art history students at University of North Carolina, Chapel Hill and can now be used by any would-be student of Celtic Art with access to a newer Web browser. The main feature of the site is its multimedia database of Celtic-related images, maps, timelines, and vocabulary aids complete with spoken pronunciations. Images can be viewed by period, material, object, and country. If you find yourself uncertain of which time period or object type to choose, as I did, helpful information is available in the Maps & Timelines section. The course syllabus, which can be found under site info, also provides an overview of Celtic Art.

428

75 FR 57835 - Constitution Day and Citizenship Day, Constitution Week, 2010  

Federal Register 2010, 2011, 2012, 2013

...Day and Citizenship Day, Constitution Week, 2010 Proclamation 8563--National POW...Day and Citizenship Day, Constitution Week, 2010 By the President of the United States...Citizenship Day, and during Constitution Week, we commemorate the legacy passed...

2010-09-22

429

Phosphatase activities of cultured phototrophic biofilms.  

PubMed

The responses of cultured phototrophic biofilms to diverse phosphorus (P) regimes were assessed using a semi-continuous flow incubator. Three biofilms were grown over 18 days under three different P regimes: replete inorganic P, organic P-only and limited inorganic P. Assessing the response of the biofilms took into account the rate of phosphomonoesterase and phosphodiesterase activities, biofilm nutrient contents and biomass accrual across the growth period. Phosphorus limitation was indicated by slower biomass accumulation and higher phosphatase activities of the organic P-only and P-limited biofilms compared to the P-replete biofilms. The cyanobacterium Phormidium sp. dominated the later stages in all the treatments forming a dense layer at the biofilm-medium interface. This layer possibly led to a reduction of light and nutrient diffusion to sub-surface cells and may account for the production of phosphatases under P replete conditions. In addition, the Phormidium-layer possibly produced a top-heavy P (and N) distribution and could explain the large reductions in areal nutrient concentrations. End-product repression and de-repression of phosphatase activity was suggested to be a main controlling factor of phosphatase activity. Consequently, it is proposed that for efficient nutrient removal from wastewaters that biofilms should be regularly removed to continually maintain biofilms at the initial stages (3-7 days). PMID:22118908

Ellwood, Neil T W; Di Pippo, Francesca; Albertano, Patrizia

2012-02-01

430

STS-88 Day 03 Highlights  

NASA Technical Reports Server (NTRS)

On this third day of the STS-88 mission, the flight crew, Commander Robert D. Cabana, Pilot Frederick W. Sturckow, and Mission Specialists Nancy J. Currie, James H. Newman, Jerry L. Ross, and Sergei Krikalev check out the various tools they will use during the three scheduled spacewalks to be conducted later in the flight. They then begin an early set-up of the Shuttle's airlock in preparation for that first spacewalk. Newman and Russian cosmonaut Sergei Krikalev take part in an on-line interview by the New York Times. Currie is seen placing Unity just inches above the extended outer ring on Endeavour's docking mechanism, enabling Commander Bob Cabana to fire downward maneuvering jets to lock the shuttle's docking system to one of two Pressurized Mating Adapters (PMA's) attached to Unity.

1998-01-01

431

Botany Photo of the Day  

NSDL National Science Digital Library

The motto of this fine site is simple: "In science, beauty. In beauty, science. Daily". A more pure expression could not be found to describe this lovely site offered by the University of British Columbia's Botanical Garden and Centre for Plant Research. The site focuses on a different high-quality photograph every day, complete with background information. Visitors can also view the site's archives, which date back to April 2005 and browse previously featured photographs, which are divided into categories that include conifers, lichens, mosses, and natural landscapes. Visitors will also want to check out some of organization's resources, including The Garden Weblog and the online garden forums. Finally, the site also affords visitors the opportunity to download desktop wallpaper for their own computer.

432

STS-95 Day 07 Highlights  

NASA Technical Reports Server (NTRS)

On this seventh day of the STS-95 mission, the flight crew, Cmdr. Curtis L. Brown, Pilot Steven W. Lindsey, Mission Specialists Scott E. Parazynski, Stephen K. Robinson, and Pedro Duque, and Payload Specialists Chiaki Mukai and John H. Glenn, again test the Orbiter Space Vision System. OSVS uses special markings on Spartan and the shuttle cargo bay to provide an alignment aid for the arm's operator using shuttle television images. It will be used extensively on the next Space Shuttle flight in December as an aid in using the arm to join together the first two modules of the International Space Station. Specialist John Glenn will complete a daily back-pain questionnaire by as part of a study of how the muscle, intervertebral discs and bone marrow change after exposure to microgravity.

1998-01-01

433

STS-88 Day 04 Highlights  

NASA Technical Reports Server (NTRS)

On this forth day of the STS-88 mission, the flight crew, Commander Robert D. Cabana, Pilot Frederick W. Sturckow, and Mission Specialists Nancy J. Currie, James H. Newman, Jerry L. Ross, and Sergei are awakened to the sounds of "Somewhere Over the Rainbow," requested by Commander Bob Cabana's daughter, Sarah. With the three-story-high Unity connecting module latched upright in the shuttle's payload bay, Cabana takes manual control of the shuttle as it moves to within about a half-mile of Zarya. Cabana and Sturckow execute a sequence of maneuvers that will bring Endeavour directly above the module. Currie uses the robotic arm to capture the module. She then positions Zarya above Unity's docking mechanism.

1998-01-01

434

STS-90 Day 11 Highlights  

NASA Technical Reports Server (NTRS)

On this eleventh day of the STS-90 mission, the flight crew, Cmdr. Richard A. Searfoss, Pilot Scott D. Altman, and Mission Specialists Richard M. Linnehan, Dafydd Rhys Williams and Kathryn P. Hire, and Payload Specialists Jay C. Buckey and James A. Pawelczyk once again take part in an experiment aimed at exploring the influence of gravity on blood pressure. The lower body negative pressure test places a stress on the cardiovascular system similar to that experienced when standing in Earth's gravity. Pawelczyk also takes part in the Valsalva test, which stimulates the pressure receptors in the neck and chest and measures those responses. Both Buckey and Pawelzyk participate as subjects and as operators in tests of the autonomic nervous system. All four science crew members conduct tests of their pulmonary systems as well as additional runs in a rotating chair to measure the response of their eyes and inner ears in maintaining balance in a weightless environment.

1998-01-01

435

STS-95 Day 04 Highlights  

NASA Technical Reports Server (NTRS)

On this forth day of the STS-95 mission, the flight crew, Cmdr. Curtis L. Brown, Pilot Steven W. Lindsey, Mission Specialists Scott E. Parazynski, Stephen K. Robinson, and Pedro Duque, and Payload Specialists Chiaki Mukai and John H. Glenn, are seen performing an evaluation of bone cell activity under microgravity conditions. Glenn then provides blood samples as part of the Protein Turnover Experiment, which is looking at the balance between the building and breakdown of muscle. He also works with the Advanced Organic Separations (ADSEP) experiment, to provides the capability to separate and purify biological materials in microgravity; and with the Microencapsulation Electrostatic Processing System (MEPS), that studies the formation of anti-tumor capsules containing two kinds of drugs.

1998-01-01

436

Time to positivity of neonatal blood cultures  

Microsoft Academic Search

AIMTo determine how long it takes neonatal blood cultures to become positive.METHODSData were collected retrospectively on 451 positive blood cultures from babies on a tertiary neonatal unit between January 1997 and December 1998. During the study period, the laboratory used the BacT\\/Alert microbial detection system.RESULTSComplete information was available on 416 blood cultures. Twelve became positive after 72 hours, none of

Y Kumar; M Qunibi; T J Neal; C W Yoxall

2001-01-01

437

Polyamines and flowering in thin layer tobacco tissue cultures. III. Kinetics of uptake and binding of labelled spermidine  

SciTech Connect

/sup 14/C-labelled spermidine (Spd) was supplied to thin layer tobacco tissue cultures growing on Murashige-Skoog medium + 1 ..mu..M NAA and kinetin. Such cultures produce only flower buds, which become obvious after about 15 days. Spd is taken up rapidly at a rate sustained throughout the culture period. Considerable binding of Spd to TCA - precipitable material occurs by day 2 of culture; it increases to a maximum on day 4 and declines by day 10, shortly before flowering. About 80% of the TCA - precipitable label remains in the form of Spd, 12% shows up as putrescine and 3% as spermine. Differential centrifugation revealed binding of Spd to various cell organelles. DNase, RNase and proteases were used to liberate Spd from the bound form. In nuclei it appears that 60% of the label is associated with nucleic acids and 40% with the protein fraction. In view of evidence from animals indicating Spd binding to specific proteins during organogenesis, they are investigating the nature of the Spd binding protein(s).

Apelbaum, A.; Kaur-Sawhney, R.; Galston, A.W.

1987-04-01

438

A Day in the Life of a Student Teacher.  

ERIC Educational Resources Information Center

This paper follows a student teacher through a typical day in her high school student teaching placement, beginning with her pre-dawn departure for school, and moving from her preparations for class to her classes, which begin at 7:15 a.m. (homeroom, several periods of biology, lunch, planning, more biology, and biochemistry). She focuses on her…

Reiff, Rebecca

439

Convocation: Opening Day Remarks, Fashion Institute of Technology.  

ERIC Educational Resources Information Center

These opening day remarks by the Fashion Institute of Technology's (FIT's) retiring president focus on the Institute's educational history, mission, and future. First, the paper discusses FIT's finances which are undergoing a period of retrenchment due to a $700,000 cut in state aid, and an anticipated $500,000 reduction in city funds. The next…

Feldman, Marvin

440

Holter monitoring: are two days better than one?  

NASA Technical Reports Server (NTRS)

The optimal duration of Holter monitoring (HM) to minimize costs and maximize yield is unknown. In a retrospective review of 164 patients referred to a tertiary care center for evaluation with 2 days of HM, we found that 48 hours was not cost effective when compared with the traditional 24-hour period.

McClennen, S.; Zimetbaum, P. J.; Ho, K. K.; Goldberger, A. L.

2000-01-01

441

The Colour of the Moon by Day and by Night  

Microsoft Academic Search

CAN any of your readers give me a full explanation of the reason why the moon looks white by day and yellow by night? The light that proceeds from it is of course the same at both periods; whence does the change in appearance arise? Two reasons occur at first thought, but they do not completely satisfy the many requirements

F. G

1870-01-01

442

Cosmos and Culture  

NSDL National Science Digital Library

What can science do for us? Perhaps a better question is what can science not do for us? These are but a few questions posed by the NPR blog, "Cosmos and Culture". The contributors to the blog include a range of scientists, including a theoretical physicist, a biologist, and an astrophysicist. The goal of the blog is "to engage in a discussion with each other'and you'about how science has shaped culture and how culture has shaped science." Visitors should go ahead and read the daily post on the site, and they can also search through past blog posts and learn more about each contributor. Another way to get started here is by clicking on the "Most Popular" blog postings, which have included "How Rare is Life?" and "Hawking and God: An Intimate Relationship". Overall, it is a thoughtful and meaningful way to engage in a dialogue about some of the most crucial issues of our day, and it is well worth a look.

443

49 CFR 229.23 - Periodic inspection: General.  

Code of Federal Regulations, 2010 CFR

...exceed 92 days. Periodic inspections shall only be made where...available. At each periodic inspection, a locomotive shall be positioned...locomotive. (b) The periodic inspection of the steam generator may...indefinitely if the water suction pipe to the water pump and...

2010-10-01

444

36 CFR 223.81 - Shorter advertising periods in emergencies.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Shorter advertising periods in emergencies. 223.81...Advertisement and Bids § 223.81 Shorter advertising periods in emergencies. In emergency...may authorize shortening the formal advertising period to not less than 7 days....

2013-07-01

445

36 CFR 223.81 - Shorter advertising periods in emergencies.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Shorter advertising periods in emergencies. 223.81...Advertisement and Bids § 223.81 Shorter advertising periods in emergencies. In emergency...may authorize shortening the formal advertising period to not less than 7 days....

2010-07-01

446

36 CFR 223.81 - Shorter advertising periods in emergencies.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Shorter advertising periods in emergencies. 223.81...Advertisement and Bids § 223.81 Shorter advertising periods in emergencies. In emergency...may authorize shortening the formal advertising period to not less than 7 days....

2011-07-01

447

36 CFR 223.81 - Shorter advertising periods in emergencies.  

...2014-07-01 2014-07-01 false Shorter advertising periods in emergencies. 223.81...Advertisement and Bids § 223.81 Shorter advertising periods in emergencies. In emergency...may authorize shortening the formal advertising period to not less than 7 days....

2014-07-01

448

36 CFR 223.81 - Shorter advertising periods in emergencies.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2012-07-01 false Shorter advertising periods in emergencies. 223.81...Advertisement and Bids § 223.81 Shorter advertising periods in emergencies. In emergency...may authorize shortening the formal advertising period to not less than 7 days....

2012-07-01

449

9 CFR 2.101 - Holding period.  

Code of Federal Regulations, 2013 CFR

...exhibitor excluding time in transit; (3) Any dog or cat suffering from disease, emaciation, or injury may be destroyed by euthanasia prior to the completion of the holding period required by this section; and (4) Any live dog or cat, 120 days...

2013-01-01

450

9 CFR 2.101 - Holding period.  

Code of Federal Regulations, 2012 CFR

...exhibitor excluding time in transit; (3) Any dog or cat suffering from disease, emaciation, or injury may be destroyed by euthanasia prior to the completion of the holding period required by this section; and (4) Any live dog or cat, 120 days...

2012-01-01

451

9 CFR 2.101 - Holding period.  

Code of Federal Regulations, 2010 CFR

...exhibitor excluding time in transit; (3) Any dog or cat suffering from disease, emaciation, or injury may be destroyed by euthanasia prior to the completion of the holding period required by this section; and (4) Any live dog or cat, 120 days...

2010-01-01

452

9 CFR 2.101 - Holding period.  

...exhibitor excluding time in transit; (3) Any dog or cat suffering from disease, emaciation, or injury may be destroyed by euthanasia prior to the completion of the holding period required by this section; and (4) Any live dog or cat, 120 days...

2014-01-01

453

9 CFR 2.101 - Holding period.  

Code of Federal Regulations, 2011 CFR

...exhibitor excluding time in transit; (3) Any dog or cat suffering from disease, emaciation, or injury may be destroyed by euthanasia prior to the completion of the holding period required by this section; and (4) Any live dog or cat, 120 days...

2011-01-01

454

Short-period geomagnetic secular variation  

Microsoft Academic Search

In this paper, the main problems of the theory of the short period geomagnetic secular variation are described. An approximate analytical representation of the observational data on both the geomagnetic field variations and the associated variations in the length of the day, the kinematics of the generation of geomagnetic variations in the skin layer at the core-mantle boundary, and the

S. I. Braginskii

1984-01-01

455

Exploring Ancient World Cultures: An Introduction to Ancient World Cultures on the World-Wide Web  

NSDL National Science Digital Library

Exploring Ancient World Cultures, provided by University of Evansville, "is an introductory, on-line, college-level 'textbook' of ancient world cultures, constructed around a series of cultural pages consisting of: The Ancient Near East, Ancient India, Ancient Egypt, Ancient China, Ancient Greece, Ancient Rome, Early Islam, and Medieval Europe." Each home page may contain essays by subject specialists, an anthology of readings from the period, a chronology, bibliographic resources, hypertext links to related sites, and computer graded quizzes. Interested users can also navigate the site by topic across cultures. A highlight of the site is the ability it gives the user to view the entire chronology, or to click on a year and culture and then another culture, in order to compare cross-cultural developments at the same time period. The site is a work in progress that promises maps and images in the near future.

1996-01-01

456

Greek and Roman Studies Discovering the cultural  

E-print Network

Greek and Roman Studies Discovering the cultural richness and variety of the world is the best. You will study periods that were foundational for these cultures, when Greeks and Romans were asking themselves, What is a citizen? a family? a god? What is art? What is law? What is freedom? These questions

457

[Periodic fever syndromes].  

PubMed

Periodic fever syndromes comprise a group of disorders characterized by attacks of seemingly unprovoked inflammation. The genetic causes of five hereditary autoinflammatory syndromes have been identified in the last few years: familial Mediterranean fever, the cryopyrinopathies [Muckle-Wells, chronic infantile neurological, cutaneous, articular syndrome (CINCA) and familial autoinflammatory syndromes], TNF-receptor associated periodic syndrome, cyclic neutropenia syndrome and periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) syndrome. The study of periodic fever syndromes has progressed from clinical characterization to genetic analysis and to the definition of the functional defects linking genes or domains to apoptotic proteins and signal transduction pathways. This new research opens the way for more specific treatment options with a further improvement in prognosis and outcome. PMID:17072571

Huemer, C; Huemer, M

2006-11-01

458

Your First Period  

MedlinePLUS

... often should I change my tampon? • What are menstrual cups? • Does having a period cause pain or discomfort? • ... need to change it more often. What are menstrual cups? Menstrual cups are made of plastic or rubber. ...

459

The Periodic Table CD.  

ERIC Educational Resources Information Center

Describes the characteristics of the digitized version of The Periodic Table Videodisc. Provides details about the organization of information and access to the data via Macintosh and Windows computers. (DDR)

Banks, Alton J.; Holmes, Jon L.

1995-01-01

460

Setting the Periodic Table.  

ERIC Educational Resources Information Center

Examines problems resulting from different forms of the periodic table, indicating that New York State schools use a form reflecting the International Union of Pure and Applied Chemistry's 1984 recommendations. Other formats used and reasons for standardization are discussed. (DH)

Saturnelli, Annette

1985-01-01

461

The role of lipase and alpha-amylase in the degradation of starch/poly(epsilon-caprolactone) fiber meshes and the osteogenic differentiation of cultured marrow stromal cells.  

PubMed

The present work studies the influence of hydrolytic enzymes (alpha-amylase or lipase) on the degradation of fiber mesh scaffolds based on a blend of starch and poly(epsilon-caprolactone) (SPCL) and the osteogenic differentiation of osteogenic medium-expanded rat bone marrow stromal cells (MSCs) and subsequent formation of extracellular matrix on these scaffolds under static culture conditions. The biodegradation profile of SPCL fiber meshes was investigated using enzymes that are specifically responsible for the enzymatic hydrolysis of SPCL using concentrations similar to those found in human serum. These degradation studies were performed under static and dynamic conditions. After several degradation periods (3, 7, 14, 21, and 30 days), weight loss measurements and micro-computed tomography analysis (specifically porosity, interconnectivity, mean pore size, and fiber thickness) were performed. The SPCL scaffolds were seeded with rat MSCs and cultured for 8 and 16 days using complete osteogenic media with and without enzymes (alpha-amylase or lipase). Results indicate that culture medium supplemented with enzymes enhanced cell proliferation after 16 days of culture, whereas culture medium without enzymes did not. No calcium was detected in groups cultured with alpha-amylase or without enzymes after each time period, although groups cultured with lipase presented calcium deposition after the eighth day, showing a significant increase at the sixteenth day. Lipase appears to positively influence osteoblastic differentiation of rat MSCs and to enhance matrix mineralization. Furthermore, scanning electron microscopy images showed that the enzymes did not have a deleterious effect on the three-dimensional structure of SPCL fiber meshes, meaning that the scaffolds did not lose their structural integrity after 16 days. Confocal micrographs have shown cells to be evenly distributed and infiltrated within the SPCL fiber meshes up to 410 microm from the surface. This study demonstrates that supplementation of culture media with lipase holds great potential for the generation of bone tissue engineering constructs from MSCs seeded onto SPCL fiber meshes, because lipase enhances the osteoblastic differentiation of the seeded MSCs and promotes matrix mineralization without harming the structural integrity of the meshes over 16 days of culture. PMID:18721077

Martins, Ana M; Pham, Quynh P; Malafaya, Patrícia B; Sousa, Rui A; Gomes, Manuela E; Raphael, Robert M; Kasper, F Kurtis; Reis, Rui L; Mikos, Antonios G

2009-02-01

462

Effects of periodic discharges  

NASA Technical Reports Server (NTRS)

Periodic capacity checks are assessed as well as the effects of periodic discharges on the cycle life and the performance of cells during the cycle life. Topics discussed include the effect of the amount of electrolyte on cell capacity at 35 C; battery design for spacecraft; electrolyte starvation theory; battery separator degradation; negative electrode stability; voltage regulation; operating temperatures; and integration of reconditioning systems using microprocessors.

Ford, F. E.

1977-01-01

463

Pas: Portugal Period.: Diria  

E-print Network

Lusa.pt País: Portugal Period.: Diária �mbito: Online Pag.: 1 de 2ID: 42336054 16-06-2012 16 DE". @ Agência Lusa Partilhar: Comentários Critério de publicação de comentários Facebook Twitter Gosto Facebook: Portugal Period.: Diária �mbito: Online Pag.: 2 de 2ID: 42336054 16-06-2012 PUBLICIDADE PUBLICIDADE BANCA

Instituto de Sistemas e Robotica

464

Reading Period Resolution Sponsors: Zachary Malter `13, Mari Jarris `14, Sam Ebb `13  

E-print Network

Reading Period Resolution Sponsors: Zachary Malter `13, Mari Jarris `14, Sam Ebb `13 Recognizing continuing the practice of 4 days of finals and 4 days of reading period or expanding reading period, Bearing of reading period, especially for advanced courses that require long final assignments", Aware

Royer, Dana

465

Cultural fictions  

Microsoft Academic Search

After World War II the Indian again captured the hearts and imaginations of admiring, sometimes worshipful North Americans and Europeans. A much enlarged and radically revised edition of an older narrative account of the character and experiences of these native peoples appeared in this period. The storyline emerged in bits and pieces, each to be market-tested and further refined, eventually

James A. Clifton

1990-01-01

466

Culture of Azolla filiculoides in artificial conditions  

Microsoft Academic Search

Azolla filiculoides showed a planar development in four culture media, but with overlapping of sporophytes after 28 days, and curled roots in all cases except for IRRI2. The difference in biomass between the media IRRI2 and IRRI1?Fe10x was statistically significant at Days 14, 21 and 28 by ANOVA. Medium IRRI2 gave the highest duplication time.

A. L. Pereira; F. Carrapiço

2009-01-01

467

77 FR 66069 - Veterans' Group Life Insurance (VGLI) No-Health Period Extension  

Federal Register 2010, 2011, 2012, 2013

...RIN 2900-AO24 Veterans' Group Life Insurance (VGLI) No-Health Period Extension...120-day ``no-health'' period during which veterans can apply for...extended no-health period available to disabled veterans sooner....

2012-11-01

468

77 FR 37839 - Veterans' Group Life Insurance (VGLI) No-Health Period Extension  

Federal Register 2010, 2011, 2012, 2013

...120-day ``no-health'' period during which veterans can apply for VGLI...extend the ``no-health'' period during which veterans can apply for VGLI...extended ``no-health'' period available to disabled veterans sooner....

2012-06-25

469

78 FR 73075 - World AIDS Day, 2013  

Federal Register 2010, 2011, 2012, 2013

...Proclamation 9064--World AIDS Day, 2013 Presidential Documents...Proclamation 9064 of November 27, 2013 World AIDS Day, 2013 By the President of the...of America A Proclamation Each year on World AIDS Day, we come together as a...

2013-12-04