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1

Four-day incubation period for blood culture bottles processed with the Difco ESP blood culture system.  

PubMed Central

Blood culture records from 1994 to 1995 from five U.S. medical centers all using the Difco ESP continuous monitoring blood culture system were reviewed retrospectively. Among a total of 7,362 isolates of bacteria and yeasts, only 0.1% of possibly significant isolates would have been missed had blood cultures been routinely incubated for 4 days instead of the 5 days recommended by the manufacturer. Conversely, numerous contaminants, detected only on day 5, would have been eliminated by a 4-day incubation period.

Doern, G V; Brueggemann, A B; Dunne, W M; Jenkins, S G; Halstead, D C; McLaughlin, J C

1997-01-01

2

Scheduling: Seven Period Day  

ERIC Educational Resources Information Center

|Driven by stable or declining financial resources many school districts are considering the costs and benefits of a seven-period day. While there is limited evidence that any particular scheduling model has a greater impact on student learning than any other, it is clear that the school schedule is a tool that can significantly impact teacher…

Williamson, Ronald

2010-01-01

3

The Eleven-Period Day.  

ERIC Educational Resources Information Center

|Describes how an eleven-period day would work in high schools. Discusses the benefits of having an eleven-period day, such as helping with overcrowding and allowing students flexibility. Addresses where music class would fit into this schedule and includes a list of resources on scheduling. (CMK)|

Fallis, Todd

2003-01-01

4

28 CFR 5.801 - day period.  

Code of Federal Regulations, 2010 CFR

...AGENTS REGISTRATION] [Sec. 5.801 Activity Beyond 10 - day period.] 28 JUDICIAL...2009-07-01 false 5.801 Sec. 5.801 Activity beyond 10 JUDICIAL ADMINISTRATION...FOREIGN AGENTS REGISTRATION Sec. 5.801 Activity beyond 10-day period. A...

2009-07-01

5

FDA Extends Public Comment Period 120 Days for Proposed ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... FDA Extends Public Comment Period 120 Days for Proposed Rules on Preventive Controls for Human Food, Produce Safety, and Draft Qualitative ... More results from www.fda.gov/food/newsevents/constituentupdates

6

Investigation of observed day-to-day variability in September mesopause region tidal-period perturbations  

Microsoft Academic Search

Simultaneous observations of the tidal-period perturbations (diurnal, semidiurnal, .etc) of temperature, zonal wind, and meridional wind in the mesopause region (80km-105km) by the CSU two-beam Na lidar system in Fort Collins, Colorado between UT day 264 and 272, September 2003 (a 9-day continuous campaign) indicate a dramatic day-to-day variability on tidal amplitudes. Further analysis on the dataset with best fit

T. Li; B. P. Williams; C. She; H. Liu

2004-01-01

7

A 50 day periodicity in the cosmic ray anisotropy  

NASA Astrophysics Data System (ADS)

A modulation of the anisotropy of relativistic interplanetary particles with a period of approximately 50 days is discussed. Even though it is not unusual for cosmic ray data to reflect the solar rotation frequency and its harmonics with periods of 25/n days (n being 1, 2, 3, . . .), it is not known how a periodicity of 50 days, which would be a subharmonic, is generated. Since the Cerenkov counter responds to all kinds of relativistic particles, it does not identify the particles that cause the 50 day east-west modulation. Jovian electrons are considered unlikely in that they are most abundant near their source, whereas the modulation has never been reported for ground-based neutron monitors. It is pointed out that since the Cerenkov threshold is somewhat lower than typical neutron monitor cutoffs, it is conceivable that the modulation affects nucleons just in this energy gap. It is also thought that there might be a uniformly distributed component of interplanetary electrons which undergo this peculiar modulation.

Walker, F.; Ip, W.-H.; Axford, I.

1983-08-01

8

77 FR 64759 - Rescission of 10-Day Agency Discretionary Period in Assigning Unsatisfactory Safety Ratings  

Federal Register 2010, 2011, 2012, 2013

...FMCSA-2012-0262] RIN 2126-AB55 Rescission of 10-Day Agency Discretionary Period in Assigning Unsatisfactory...provision indicating that the Agency will consider a 10- day extension of the 45-day period after which passenger and hazardous...

2012-10-23

9

Cross-Cultural Interactions in an American Day Care Setting.  

ERIC Educational Resources Information Center

A total of 23 American and Hmong-American preschool children from 2 day care center classrooms were observed during free play in an effort to determine the proportion of positive, negative, and neutral initiations made to peers as a function of sex and cultural background. A series of weighted, two-way analyses of variance were performed on…

Noppe, Illene C.; Ray, Melissa

10

42 CFR 137.134 - When does the 45 day review period begin?  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false When does the 45 day review period begin? 137.134 Section 137...SELF-GOVERNANCE Final Offer § 137.134 When does the 45 day review period begin? The 45 day review period begins from the date the IHS...

2012-10-01

11

42 CFR 137.134 - When does the 45 day review period begin?  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false When does the 45 day review period begin? 137.134 Section 137...SELF-GOVERNANCE Final Offer § 137.134 When does the 45 day review period begin? The 45 day review period begins from the date the IHS...

2011-10-01

12

Hmong cultural practices and beliefs: the postpartum period.  

PubMed

The purpose of this study was to explore the cultural practices and beliefs of the Hmong in the postpartum period. Using the qualitative research method of in-depth interviewing, data were collected through semistructured interviews. A convenience sample of 52 childbearing Hmong women was interviewed with the help of Hmong interpreters. The interviews were audiotaped and transcribed for analysis. Data analysis revealed cultural practices and beliefs categories related to diet, rest period, appropriate clothing, breast feeding, and sex practices in the postpartum period. Implications for nursing include both cultural sensitivity and an understanding of such traditional practices, before suggesting or implementing any health-promotion activities. PMID:7633342

Jambunathan, J

1995-08-01

13

The Flexible Policy for the Seventh Period/Extended School Day in Florida.  

ERIC Educational Resources Information Center

|Between 1983 and 1985, the Florida Legislature enacted legislation that increased the credits required for high school graduation and redefined the closely related length and configuration of the school day. Members of the Superintendent's Task Force on the Seventh Period/Extended School Day, members and staff of the legislature's education and…

Berger, Neal H.; And Others

1986-01-01

14

Ethanol alters astrocyte development: A study of critical periods using primary cultures  

Microsoft Academic Search

Using astrocytes obtained from 21-day-old rat fetuses, in primary culture, we have analyzed the effect of prenatal alcohol consumption on DNA and protein synthesis of astrocytes during their development. The variation in sensitivity of astrocytes to ethanol “in vitro” during the proliferation and maturation periods was also assessed. Control astrocytes showed peaks of DNA and protein synthesis at 8 and

C. Guerri; R. Sáez; M. Sancho-Tello; E. Martin de Aquilera; J. Renau-Piqueras

1990-01-01

15

Rehydration with a caffeinated beverage during the nonexercise periods of 3 consecutive days of 2-a-day practices.  

PubMed

The purpose of this study was to assess the influence of rehydration with a caffeinated beverage during nonexercise periods on hydration status throughout consecutive practices in the heat. Ten (7 women, 3 men) partially heat- acclimated athletes (age 24 +/-1y, body fat 19.2 +/- 2 %, weight 68.4 +/- 4.0 kg, height 170 +/- 3 cm) completed 3 successive days of 2-a-day practices (2 h/practice, 4 h/d) in mild heat (WBGT = 23 C). The 2 trials (double-blind, random, cross-over design) included; 1) caffeine (CAF) rehydrated with Coca-Cola and 2) caffeine-free (CF) rehydrated with Caffeine-Free Coca-Cola. Urine and psychological measures were determined before and after each 2-h practice. A significant difference was found for urine color for the post-AM time point, F = 5.526, P = 0.031. No differences were found among other variables (P > 0.05). In summary, there is little evidence to suggest that the use of beverages containing caffeine during nonexercise might hinder hydration status. PMID:15467100

Fiala, Kelly A; Casa, Douglas J; Roti, Melissa W

2004-08-01

16

Optimal periodic perfusion strategy for robust long-term microfluidic cell culture.  

PubMed

Long-term cell culture in microfluidic devices is an essential prerequisite for "on a chip" biological and physiological based studies. We investigated how medium delivery, from continuous to periodic perfusion, affects long-term cell cultures in a microfluidic platform. Computational simulations suggested that different delivery strategies result in different temporal profiles of accumulation and washing out of endogenous (EnF) and exogenous (ExF) factors, respectively. Thus, cultures exposed to the same overall amount of medium with different temporal profiles were analysed in terms of homogeneity, cell morphology and phenotype. Murine and human cell lines (C2C12 and HFF) and mouse embryonic stem cells (mESC) were cultured in microfluidic channels. An ad hoc experimental setup was developed to perform continuous and periodic medium delivery into the chip, tuning the flow rate, the perfusion time, and the interval of perfusion while using the same amount of medium volume. Periodic medium delivery with a short perfusion pulse ensured cell homogeneity compared to standard cell culture. Conversely, a continuous flow resulted in cell heterogeneity, with abnormal morphology and vesiculation. Only dramatic and unfeasible increasing of perfused medium volume in the continuous configuration could rescue normal cell behaviour. Consistent results were obtained for C2C12 and HFF. In order to extend these results to highly sensitive cells, mESC were cultured for 6 days in the microfluidic channels. Our analysis demonstrates that a periodic medium delivery with fast pulses (with a frequency of 4 times per day) resulted in a homogeneous cell culture in terms of cell viability, colony morphology and maintenance of pluripotency markers. According to experimental observations, the computational model provided a rational description of the perfusion strategies and of how they deeply shape the cell microenvironment in microfluidic cell cultures. These results provide new insight to define optimal strategies for homogeneous and robust long-term cell culture in microfluidic systems, an essential prerequisite for lab on chip cell-based applications. PMID:24064704

Giulitti, Stefano; Magrofuoco, Enrico; Prevedello, Lia; Elvassore, Nicola

2013-10-15

17

October-November, 2003 Solar Activity and its Relationship to the 'approximately 155 day' Solar Periodicity.  

National Technical Information Service (NTIS)

Periodicities of - 155 days in various solar and interplanetary phenomena were first discovered during solar cycle 21 and have been shown t o be intermittently present in other solar cycles. In the current solar cycle (23), they have been reported in sola...

I. G. Richardson H. V. Cane

2005-01-01

18

October-November, 2003 Solar Activity and its Relationship to the Approximately 155 Day Solar Periodicity.  

National Technical Information Service (NTIS)

Periodicities of approx. 155 days in various solar and interplanetary phenomena were first discovered during solar cycle 21 and have been shown to be intermittently present in other solar cycles. In the current solar cycle (23), they have been reported in...

I. G. Richardson H. V. Cane

2004-01-01

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

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

21

42 CFR 409.63 - Reduction of inpatient psychiatric benefit days available in the initial benefit period.  

Code of Federal Regulations, 2010 CFR

...Reduction of inpatient psychiatric benefit days available in the initial benefit period...Reduction of inpatient psychiatric benefit days available in the initial benefit period...inpatient in a psychiatric hospital on the first day of Medicare entitlement and for any...

2009-10-01

22

29 CFR 553.230 - Maximum hours standards for work periods of 7 to 28 days-section 7(k).  

Code of Federal Regulations, 2013 CFR

...Public Agencies Overtime Compensation Rules...hours standards for work periods of 7 to 28...activities who have a work period of at least...consecutive days, no overtime compensation is...institutions) who have a work period of at least...consecutive days, no overtime compensation...

2013-07-01

23

111-day periodicity of X-ray transient A0535+26  

NASA Astrophysics Data System (ADS)

Data analysis results for the 1969-79 all-sky coverage of the hard spectrum, pulsating X-ray transient A0535+26 obtained by the scintillator-photomultiplier on the Vela 5B spacecraft are presented. Fourier analysis of the time history demonstrates the existence of the 111-day period suggested by Nagase et al. (1982). The giant outbursts in April 1975 and September 1980 appear out of phase with the period, suggesting an origin different from the smaller events. The May 1975 to June 1979 mean luminosity is consistent with the secular spinup observed by Nagase. Calculation of the wind mass flux required to feed the X-ray source shows that it exceeds the expected value by a factor of over 1000. It is more likely that the transferred matter is lost from the equatorial region of the rapidly rotating B star.

Priedhorsky, W. C.; Terrell, J.

1983-06-01

24

Integrating and Preserving Values in a School Culture: A Qualitative Study of a Jewish Day School  

Microsoft Academic Search

This article portrays the cultural norms and value orientation of a Jewish day school, including the influence of the principal and teachers on school culture. This qualitative case study allows the reader to better understand the integration and manifestation of institutional values embedded within the context of the school.The outcomes of this study confirm that at the heart of the

EDWARD L. HARRIS

1993-01-01

25

Erratum: The 2.27 day period of WR-134 (HD 191765)  

NASA Astrophysics Data System (ADS)

The original temporal analysis of a 12 night spectral timeseries of Wolf-Rayet (WR)-134 has been found to be flawed and a re-analysis shows that the line profile variations are indeed periodic. When combined with a 4 night timeseries taken 45 days earlier, a period near 2.27 d is found in periodograms of the He II lambda 5412 line centroid, rms line width, and line skew variations. When the emission line residuals are ordered as a function of phase, a sinuous feature appears to 'snake' about the line center with an amplitude of +/-500 km/s. This is approximately equal to 20 larger than the line centroid amplitude; the calculation of which is heavily weighted by static portions of the line profile. In addition to the 'snake,' emission residuals appear that move away from line center on unbound trajectories and are thought to result from the interaction of a periodic driver with the unstable flow of the radiation driven wind.

McCandliss, Stephan R.; Bohannan, Bruce; Robert, Carmelle; Moffat, Anthony F. J.

1994-11-01

26

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

2013-03-14

27

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

28

Changes in phosphoinositide metabolism with days in culture affect signal transduction pathways in galdieria sulphuraria  

PubMed

The metabolism of phosphatidylinositol-4,5-bisphosphate (PIP2) changed during the culture period of the thermoacidophilic red alga Galdieria sulphuraria. Seven days after inoculation, the amount of PIP2 in the cells was 910 +/- 100 pmol g-1 fresh weight; by 12 d, PIP2 levels increased to 1200 +/- 150 pmol g-1 fresh weight. In vitro assays indicated that phosphatidylinositol monophosphate (PIP) kinase specific activity increased from 75 to 230 pmol min-1 mg-1 protein between d 7 and 12. When G. sulphuraria cells were osmostimulated, transient increases of up to 4-fold could be observed in inositol-1,4,5-trisphosphate (IP3) levels within 90 s, regardless of the age of the cells. In d-12 cells, the increase in IP3 was preceded by a transient increase of up to 5-fold in specific PIP kinase activity, whereas no such increase was detected after osmostimulation of d-7 cells. The increase in PIP kinase activity before IP3 signaling in d-12 cells indicates that there is an additional pathway for regulation of phosphoinositide metabolism after stimulation other than an initial activation of phospholipase C. Also, the rapid activation of PIP2 biosynthesis in cells with already-high PIP2 levels suggests that the PIP2 present was not available for signal transduction. By comparing the response of the cells at d 7 and 12, we have identified two potentially distinct pools of PIP2. PMID:10198092

Heilmann; Perera; Gross; Boss

1999-04-01

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

Russian reading in a period of social and cultural change  

Microsoft Academic Search

This article outlines several significant features of reading in Russia today. First the change of the cultural hierarchy is addressed: no longer is the reading of the classics a status symbol, indicating the reader's adherence to traditional norms of culture. The classics have been abandoned as readers unashamedly pursue light entertainment in the form of detective stories, romances, etc. Second,

V. D. Stelmakh

1995-01-01

31

76 FR 6794 - 30-Day Submission Period for Requests for ONC-Approved Accreditor (ONC-AA) Status  

Federal Register 2010, 2011, 2012, 2013

...Requests for ONC-Approved Accreditor (ONC-AA) Status AGENCY: Office of the National...requests for ONC-Approved Accreditor (ONC-AA) status. Authority: 42 U.S.C. 300jj-11...30-day period during which requests for ONC-AA status may be submitted. The 30-day...

2011-02-08

32

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

EPA Science Inventory

This data set contains data concerning the child?s activities at the day care center over the 48-h monitoring period. The diary was divided into three time periods over the 48-h monitoring interval. The Food Survey collected information on the frequency and types of fruits, veget...

33

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...

34

An Interpretation of the Subsidiary Peaks at Periods near 27 Days in the Power Spectra of Cand K  

Microsoft Academic Search

In a recent article, Shapiro and Ward (1966) discussed the power spectra of the magnetic character figure, C,, and of the daily sums of the index of magnetic activity, K. In each spec- trum, the authors found a principal peak at a period of 27.4 days and subsidiary peaks at 29.4 and 25.6 days. Our purpose in this note is

EDWARD J. SMITH

1966-01-01

35

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

36

A 6- to 8-day periodicity in cercarial shedding occurred in some Galba truncatula experimentally infected with Fasciola hepatica.  

PubMed

A retrospective study on a total of 669 Galba truncatula (three groups) experimentally infected with Fasciola hepatica was carried out to determine why 6- to 8-day interwave intervals, separating the successive waves of cercarial shedding, occurred with a regular pattern in some snails during the whole patent period. In the three groups of snails, the number of cercariae per shedding wave peaked at the second wave and subsequently decreased up to the fifth wave. The mean length of interwave intervals ranged from 6.8 to 7.8 days and only showed insignificant variations. The number of free cercariae recorded at the end of each interwave interval significantly decreased over the patent period. Similar findings were also noted for intraredial cercariae in the first redial generation and the first cohort of the second generation. By contrast, the number of intraredial cercariae significantly increased along the patent period from the second interwave interval. In the case of each interval separately considered, most numerical variations noted for free cercariae or for intraredial cercariae were insignificant. The periodicity of 6.8-7.8 days found for interwave intervals in the present study might correspond to the infradian-type rhythm already reported for the cercarial shedding of F. hepatica. However, snails showing such regular pattern in cercarial shedding along the patent period were few in number, and one may wonder about the reasons of such snails in the case of F. hepatica. PMID:16374617

Vignoles, P; Alarion, N; Bellet, V; Dreyfuss, G; Rondelaud, D

2005-12-22

37

Selected List of Periodicals on the New England Area and Its Culture  

Microsoft Academic Search

An annotated list is presented describing fifteen periodicals that cover significant aspects of the New England Area and its culture in whole or in part. The titles included are a selective and representative sampling. The entry for each periodical title includes the following information: periodical title, publisher\\/editor and address, basic information, publication data, content, Internet information and an abstract\\/annotation.

LaDonne Delgado

2002-01-01

38

76 FR 33395 - 30-Day Notice of Proposed Information Collections: ECA Sports & Culture Evaluation Surveys  

Federal Register 2010, 2011, 2012, 2013

...Proposed Information Collections: ECA Sports & Culture Evaluation Surveys ACTION... Title of Information Collection: Sports & Culture Evaluation, Between the Lines... Title of Information Collection: Sports & Culture Evaluation, Sports Envoys...

2011-06-08

39

41 CFR 302-6.107 - What effect do partial days of temporary quarters occupancy have on my authorized period for...  

Code of Federal Regulations, 2012 CFR

...authorized period for claiming actual TQSE reimbursement? Occupancy of temporary quarters for less than a whole day constitutes one full day of your authorized period. (However, see § 302-6.110 regarding en route...

2012-07-01

40

Evidence for Long-period (14-30 Days) and Against Short-period (12-24 Hours) Tidal Modulation of Volcanic Tremor at Arenal Volcano, Costa Rica  

NASA Astrophysics Data System (ADS)

Many studies have sought a correlation between the occurrence of earthquakes or volcanic activity and various Earth tide components, which would provide evidence for external tidal modulation of these geophysical phenomena. Several studies of short duration seismic experiments at Arenal Volcano in Costa Rica have found evidence of diurnal and semi-diurnal tidal periodicities in the seismic record. However, studies at other volcanoes, using longer time series, with improved spectral resolution, do not find tidal peaks in the seismic spectrum, but rather solar peaks (at exactly 12 and/or 24 hours), suggesting that the modulation is caused not by tidal stresses, but by weather related parameters - temperature, barometric pressure, rainfall. In contrast, recent studies of nonvolcanic tremor in the subduction zones of Japan and Cascadia do find evidence for tidal modulation of tremor activity with a period of 12.4 hours. Thus, the questions of whether or not earthquakes and volcanoes are triggered by external forces, and if so, whether these forces are related to elastic tides or to weather, are still highly relevant. We examine a continuous, 302-day long recording of ground motion at Arenal Volcano, Costa Rica, for potential solar and lunar periodicities in the volcanic seismicity. No evidence is found for significant energy in the semidiurnal (near 12 hr) or diurnal (near 24 hr) frequency bands, in contrast to previous, lower- resolution studies at Arenal. However, analysis with multi-taper method (MTM) and singular spectrum analysis (SSA) reveals significant low-frequency (f < .005 cycles/hr) energy in the tremor and explosivity series, including 14 and 30-day quasi-periodic components, relative to a red noise hypothesis. We attempt to fit the data to long-period tidal frequencies in order to verify potential tidal modulation of the long-period seismic energy at Arenal.

Hagerty, M. T.; Schwartz, S.; Revenaugh, J.

2008-12-01

41

PHYSICAL PROPERTIES OF THE 0.94-DAY PERIOD TRANSITING PLANETARY SYSTEM WASP-18  

SciTech Connect

We present high-precision photometry of five consecutive transits of WASP-18, an extrasolar planetary system with one of the shortest orbital periods known. Through the use of telescope defocusing we achieve a photometric precision of 0.47-0.83 mmag per observation over complete transit events. The data are analyzed using the JKTEBOP code and three different sets of stellar evolutionary models. We find the mass and radius of the planet to be M {sub b} = 10.43 +- 0.30 +- 0.24 M {sub Jup} and R {sub b} = 1.165 +- 0.055 +- 0.014 R {sub Jup} (statistical and systematic errors), respectively. The systematic errors in the orbital separation and the stellar and planetary masses, arising from the use of theoretical predictions, are of a similar size to the statistical errors and set a limit on our understanding of the WASP-18 system. We point out that seven of the nine known massive transiting planets (M {sub b} > 3 M {sub Jup}) have eccentric orbits, whereas significant orbital eccentricity has been detected for only four of the 46 less-massive planets. This may indicate that there are two different populations of transiting planets, but could also be explained by observational biases. Further radial velocity observations of low-mass planets will make it possible to choose between these two scenarios.

Southworth, John; Anderson, D. R.; Maxted, P. F. L. [Astrophysics Group, Keele University, Newcastle-under Lyme, ST5 5BG (United Kingdom); Hinse, T. C. [Armagh Observatory, College Hill, Armagh, BT61 9DG (United Kingdom); Dominik, M.; Mathiasen, M.; Browne, P. [SUPA, University of St. Andrews, School of Physics and Astronomy, North Haugh, St. Andrews, KY16 9SS (United Kingdom); Glitrup, M. [Department of Physics and Astronomy, Aarhus University, Ny Munkegade, 8000 Aarhus C (Denmark); Joergensen, U. G.; Harpsoee, K. [Niels Bohr Institute and Centre for Star and Planet Formation, University of Copenhagen, Juliane Maries vej 30, 2100 Copenhagen Oe (Denmark); Liebig, C.; Maier, G. [Astronomisches Rechen-Institut, Zentrum fuer Astronomie, Universitaet Heidelberg, Moenchhofstrasse 12-14, 69120 Heidelberg (Germany); Bozza, V.; Calchi Novati, S.; Mancini, L. [Dipartimento di Fisica 'E. R. Caianiello', Universita di Salerno, Baronissi (Italy); Burgdorf, M. [Deutsches SOFIA Institut, NASA Ames Research Center, Mail Stop 211-3, Moffett Field, CA 94035 (United States); Dreizler, S.; Hessman, F.; Hundertmark, M. [Institut fuer Astrophysik, Georg-August-Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany); Finet, F., E-mail: jkt@astro.keele.ac.u [Institut d'Astrophysique et de Geophysique, Universite de Liege, 4000 Liege (Belgium)

2009-12-10

42

Relative importance of the quasi 27-day solar rotation period on foF2 and foE  

NASA Astrophysics Data System (ADS)

In most empirical ionospheric models the dependence on solar activity is described by highly averaged indices. The widely used CCIR and URSI models for the F2 peak frequency (foF2), for example, are based on the 12-month running-mean of sunspot number. These annually averaged indices describe well the dominant 11-year solar cycle variation seen in ionospheric observations. But lower period variations are observed as well, e.g., the 27-day solar rotation. In this study we investigate periodicities that can be found in ionospheric parameters. We employ a method of spectral analysis to foF2 and foE data from 20 ionosonde stations . Our results confirm that the 27-day periodicity is clearly manifested in both parameters. But this periodicity is much less pronounced than seasonal and solar cycle variations. We also analyze the time delay between the 27-day variation as it is seen in solar parameters/indices and in ionospheric parameters and its dependence on longitude.

Bilitza, Dieter; Truhlik, Vladimir; Triskova, Ludmila

2010-05-01

43

Effect of end-of-day irradiations on polyamine accumulation in petal cultures of Araujia sericifera.  

PubMed

We have studied photoperiodic control and the effect of phytochrome photoconversion at the end-of-day (EOD) on polyamine (PA) accumulation in petal explants of Araujia sericifera. Petals from immature flowers were cultured under long (LD) and short (SD) days. Light was provided by Gro-lux fluorescent lamps (90-100 &mgr;mol m-2 s-1). Red (R), far red (FR), red followed by far-red (R-FR) and far-red followed by red (FR-R) light treatments were applied daily at the end of the photoperiod. The free and bound putrescine (Put), spermidine (Spd) and spermine (Spm) fractions in petal explants were determined 40 days after the beginning of the culture. We also aimed to clarify the involvement of PA changes by using two inhibitors of PA biosynthesis: D-l-alpha-difluoromethylarginine (DFMA) and methylglyoxal bis(guanylhydrazone) (MGBG). We found PA accumulation to be under photoperiodic control, and the inhibitory effect of DFMA on this accumulation suggests that arginine decarboxylase (ADC) is the major pathway for Put biosynthesis. Polyamine levels were higher under LD, mainly as a result of the accumulation of free and bound Put. FR-EOD treatment, which dramatically reduced the R : FR ratio after LD, increased the accumulation of PA, mainly as free Put and free and bound Spd. Sequential R-FR and FR-R-EOD treatments strongly increased bound Spd. The concentration of MGBG used increased total PA accumulation, mainly as Put. However, all EOD light treatments dramatically reduced Put accumulation in the presence of MGBG. This may be due to a dual role of FR light in PA accumulation: (1) FR per se stimulates PA production, probably via ADC, and (2) in the presence of MGBG, FR inhibits Put accumulation, probably via ethylene production. PMID:11982944

Moysset, Luisa; Trull, Olga; Santos, M. Asunción; Simón, Esther; Torné, Josep M

2002-01-01

44

42 CFR 137.137 - If the 45 day review period or extension thereto, has expired, and the Tribes offer is deemed...  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false If the 45 day review period or extension thereto, has... Final Offer § 137.137 If the 45 day review period or extension thereto, has...are no exceptions to this rule if the 45 day review period or extension thereto,...

2012-10-01

45

42 CFR 137.135 - May the Secretary request and obtain an extension of time of the 45 day review period?  

Code of Federal Regulations, 2012 CFR

...and obtain an extension of time of the 45 day review period? 137.135 Section 137...and obtain an extension of time of the 45 day review period? Yes, the Secretary may...extension of time before the expiration of the 45 day review period. The Indian Tribe...

2012-10-01

46

INTERPRETATION OF THE 115 DAY PERIODIC MODULATION IN THE X-RAY FLUX OF NGC 5408 X-1  

SciTech Connect

We comment on the recent observation of a 115 day modulation in the X-ray flux of the ultraluminous X-ray source (ULX) NGC 5408 X-1, and in particular, the interpretation of this modulation as the orbital period. We suggest that this modulation may instead be due to a precessing jet, and is thus superorbital in nature. Comparing the properties of this ULX with those of the prototypical micro-quasar SS 433, we argue that NGC 5408 X-1 is very similar to SS 433: a hyper-accreting stellar-mass black hole in a shorter-period binary. If the analogy holds, the 115 day modulation is best explained by the still poorly understood physics of inner-disk/jet precession and a longer observing baseline would be able to reveal an intrinsic phase jitter that is associated with such a precession.

Foster, D. L.; Charles, P. A. [South African Astronomical Observatory, P.O. Box 9, Observatory, 7935 (South Africa); Holley-Bockelmann, K., E-mail: deatrick@saao.ac.z [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN (United States)

2010-12-20

47

Comparison of the electrophysiological and immunohistochemical properties of acutely dissociated and 1-day cultured rat trigeminal ganglion neurons.  

PubMed

To clarify whether changes to the cellular properties of sensory neurons occur after a brief culture, we compared the electrophysiological and immunohistochemical properties of rat trigeminal ganglion neurons. We compared these neurons after acute dissociation and after a 1-day culture under serum-free and neurotrophin-free conditions. In whole-cell patch-clamp recordings, the 1-day cultured neurons required a lower current threshold to induce an action potential in both small- and medium-sized neurons. Furthermore, the input resistance was higher in the medium-sized neurons after a 1-day culture compared to the acutely dissociated medium-sized neurons. Immunofluorescent studies demonstrated that both the translocation of the activating transcription factor 3 (ATF3) into the nucleus and the expression of a low threshold Na(+) channel (Na(v)1.3) were upregulated after 1-day of culture. However, in the acutely dissociated neurons, ATF3 translocation occurred at low levels, and Na(v)1.3 was not expressed. These electrophysiological and immunohistochemical changes after 1-day of culture were very similar to the reported changes that occur after nerve injury. Our study demonstrated that injury-like characteristics appear to be manifested in the 1-day cultured sensory neurons, which do not occur in acutely dissociated neurons. Overall, our results are relevant and will help when interpreting the results of studies examining dissociated sensory neurons in pain research. PMID:22771569

Ono, Kentaro; Xu, Shenghong; Hitomi, Suzuro; Inenaga, Kiyotoshi

2012-07-04

48

A 6- to 8-day periodicity in cercarial shedding occurred in some Galba truncatula experimentally infected with Fasciola hepatica  

Microsoft Academic Search

A retrospective study on a total of 669 Galba truncatula (three groups) experimentally infected with Fasciola hepatica was carried out to determine why 6- to 8-day interwave intervals, separating the successive waves of cercarial shedding,\\u000a occurred with a regular pattern in some snails during the whole patent period. In the three groups of snails, the number of\\u000a cercariae per shedding

P. Vignoles; N. Alarion; V. Bellet; G. Dreyfuss; D. Rondelaud

2006-01-01

49

Serum Metabolic Signatures Induced By a Three-Day Intensified Exercise Period Persist After 14 h of Recovery in Runners.  

PubMed

This study investigated changes in the human serum metabolome elicited by a 3-day period of intensified training. Runners (N = 15, mean ± SD age, 35.2 ± 8.7 years) ran for 2.5 h/day on treadmills at ?70% VO2max for 3 days in a row, with blood samples collected pre-exercise, and immediately and 14 h post-exercise. Samples were analyzed using gas and liquid chromatography/mass spectrometry (GC-MS, LC-MS), with compounds identified based on comparison to more than 2800 purified standards. Repeated measures ANOVA was used to identify metabolites that differed significantly across time, with multiple testing corrected by the false discovery rate (FDR) (q-value). Immediately following the 3-day exercise period, significant 2-fold or higher increases in 75 metabolites were measured, with all but 22 of these metabolites related to lipid/carnitine metabolism, 13 to amino acid/peptide metabolism, 4 to hemoglobin/porphyrin metabolism, and 3 to Krebs cycle intermediates (q-values < 0.001). After a 14 h overnight recovery period, 50 of the 75 metabolites remained elevated, with 8 decreased (primarily amino acid-related metabolites) (q-values < 0.05). Among the top 20 metabolites, the mean fold changes were 12.4 ± 5.3 and 2.9 ± 1.3 immediately and 14-h post-exercise, respectively. Significant decreases (40-70%, q < 0.01) in 22 metabolites (primarily related to lysolipid and bile acid metabolism) were measured post-exercise, with all but 4 of these still decreased after 14 h rest recovery (q < 0.025). Runners experienced a profound systemic shift in blood metabolites related to energy production especially from the lipid super pathway following 3 days of heavy exertion that was not fully restored to pre-exercise levels after 14 h recovery. PMID:23984841

Nieman, David C; Shanely, R Andrew; Gillitt, Nicholas D; Pappan, Kirk L; Lila, Mary Ann

2013-09-13

50

Keratinocyte Dysplasia in Hematopoietic Stem Cell Transplant Recipients in the Day 28 to 84 Post Transplant Period  

PubMed Central

Severe keratinocyte dysplasia (SKD) has been reported as a common event in the early post-transplant period of hematopoietic stem cell transplant (HCST) patients.1 The purpose of our study is to determine the possible causes of SKD during the intermediate post-transplant period, and to ascertain its prevalence in skin biopsies. Skin biopsy slides, obtained from HCST recipients who were days 28 to 84 post transplant, were evaluated for SKD. Forty-four examples of SKD were identified in 467 slides, or 9%. Thirty-seven patients were evaluated as cases in a case-control design. SKD was strongly associated with a conditioning regimen containing busulfan with an odds ratio (OR) of 7.25 (p=0.0002). In a multivariate adjusted analysis, SKD was not associated with cyclophosphamide, fludarabine, total body irradiation (TBI), or a nonmyeloablative conditioning regimen. SKD was not associated with clinical acute graft-versus-host disease (GVHD). SKD histology gradually resolved, reaching a normal histology after an average of 241 days. This study finds that severe keratinocyte dysplasia in the period 28 to 84 days post hematopoietic stem cell transplantation is strongly associated with a busulfan conditioning regimen.

Li, Ning; Guthrie, Katherine A.; Storer, Barry E.; Martin, Paul J.; Sale, George E.; Argenyi, Zsolt B.; Myerson, David

2012-01-01

51

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

Federal Register 2010, 2011, 2012, 2013

...and Evaluation, Evaluation Division: Sports & Culture Evaluation Kennedy Center Visitors...and Evaluation, Evaluation Division: Sports & Culture Evaluation Kennedy Center Visitors...allow ECA/P/V as part of their larger Sports and Culture Evaluation to conduct a...

2011-03-22

52

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

Federal Register 2010, 2011, 2012, 2013

...and Evaluation, Evaluation Division: Sports & Culture Evaluation BTL Survey, OMB...and Evaluation, Evaluation Division: Sports & Culture Evaluation BTL Survey. OMB...allow ECA/P/V as part of their larger Sports and Culture Evaluation to conduct a...

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

...and Evaluation, Evaluation Division: Sports & Culture Evaluation IVLP Survey, OMB...and Evaluation, Evaluation Division: Sports & Culture Evaluation IVLP Survey. OMB...allow ECA/P/V as part of their larger Sports and Culture Evaluation to conduct a...

2011-03-22

54

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

Federal Register 2010, 2011, 2012, 2013

...and Evaluation, Evaluation Division: Sports & Culture Evaluation IWP Survey, OMB...and Evaluation, Evaluation Division: Sports & Culture Evaluation IWP Survey. OMB...allow ECA/P/V as part of their larger Sports and Culture Evaluation to conduct a...

2011-03-22

55

Global characteristics of the correlation and time lag between solar and ionospheric parameters in the 27-day period  

NASA Astrophysics Data System (ADS)

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 ˜370 km and ˜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 process that is not controlled by the solar extreme ultraviolet radiation.

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

2012-03-01

56

Periodical batch culture of the immobilized growing fungi Sporotrichum cellulophilum producing cellulase in the nonwoven materials  

SciTech Connect

The thermophilic fungus Sporotrichum cellulophilum was immobilized with nonwoven materials for cellulase production. The cellulose powder concentration in the medium was an important factor controlling cellulase production. When the cellulase powder concentration in the nonwoven materials was more than 4%, cellulase production was suppressed. The growth of the immobilized fungi depended on the spaces in the nonwoven materials. Immobilized growing fungi were retained by the nonwoven materials, and the supernatant medium did not contain mycelia. The heat stability of the immobilized growing fungus was higher than that of the free fungus. The immobilized fungus gave the same FPA as the free mycelium, but the lag time for cellulase production in the immobilized fungus was longer. It was necessary for the medium to be changed in order to get the immobilized growing fungus to continue producing cellulase. In this instance there was no difference of lag time in comparsion with the free cells, and the supply of cellulose powder and polypepton was reduced to two-thirds. After 23 exchanges of the medium (2.6 mg cellulose powder/1 cubic cm nonwoven materials) FPA value was maintained. The periodic batch culture was continued for 69 days. 12 references.

Tamada, M.; Kasai, N.; Kumakura, M.; Kaetsu, I.

1986-08-01

57

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

Federal Register 2010, 2011, 2012, 2013

...and Evaluation, Evaluation Division: Sports & Culture Evaluation Envoys Survey, OMB...and Evaluation, Evaluation Division: Sports & Culture Evaluation Envoys Survey OMB...Respondents: Envoy participants of the Sports Envoys Program conducted by ECA from...

2011-03-22

58

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

Federal Register 2010, 2011, 2012, 2013

...of Policy and Evaluation, Evaluation Division: Sports & Culture Evaluation Sports Surveys, OMB Control Number 1405-xxxx ACTION...of Policy and Evaluation, Evaluation Division: Sports & Culture Evaluation Sports Surveys. OMB...

2011-03-22

59

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.

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

2011-01-01

60

‘A day in the life’: advancing a methodology for the cultural study of development and learning in early childhood  

Microsoft Academic Search

This paper explores the methodology of an ecological investigation of aspects of culture in the interactional construction of early childhood in diverse global communities: Peru, Italy, Canada, Thailand, and the United Kingdom. Regarding culture as a dynamic dimension of the child’s socialisation, the approach taken was to film a ‘day in the life’ of a two?and?a?half?year?old girl in each location.

Julia Gillen; Catherine Ann Cameron; Sombat Tapanya; Giuliana Pinto; Roger Hancock; Susan Young; Beatrice Accorti Gamannossi

2007-01-01

61

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

62

Comprehensive Mapping of Regional Expression of the Clock Protein PERIOD2 in Rat Forebrain across the 24-h Day  

PubMed Central

In mammals, a light-entrainable clock located in the suprachiasmatic nucleus (SCN) regulates circadian rhythms by synchronizing oscillators throughout the brain and body. Notably, the nature of the relation between the SCN clock and subordinate oscillators in the rest of the brain is not well defined. We performed a high temporal resolution analysis of the expression of the circadian clock protein PERIOD2 (PER2) in the rat forebrain to characterize the distribution, amplitude and phase of PER2 rhythms across different regions. Eighty-four LEW/Crl male rats were entrained to a 12-h: 12-h light/dark cycle, and subsequently perfused every 30 min across the 24-h day for a total of 48 time-points. PER2 expression was assessed with immunohistochemistry and analyzed using automated cell counts. We report the presence of PER2 expression in 20 forebrain areas important for a wide range of motivated and appetitive behaviors including the SCN, bed nucleus, and several regions of the amygdala, hippocampus, striatum, and cortex. Eighteen areas displayed significant PER2 rhythms, which peaked at different times of day. Our data demonstrate a previously uncharacterized regional distribution of rhythms of a clock protein expression in the brain that provides a sound basis for future studies of circadian clock function in animal models of disease.

Harbour, Valerie L.; Weigl, Yuval; Robinson, Barry; Amir, Shimon

2013-01-01

63

42 CFR 137.136 - What happens if the agency takes no action within the 45 day review period (or any extensions...  

Code of Federal Regulations, 2012 CFR

...false What happens if the agency takes no action within the 45 day review period (or any extensions thereof)? 137.136 Section...136 What happens if the agency takes no action within the 45 day review period (or any extensions thereof)? The final...

2012-10-01

64

A Highly Inclined Orbit for the 110 Day Period M-dwarf Companion KOI-368.01  

NASA Astrophysics Data System (ADS)

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_{-10}^{+9\\,\\circ }. 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; Huang, Chelsea X.

2013-10-01

65

77 FR 42790 - Culturally Significant Objects Imported for Exhibition Determinations: “The Last Days of Pompeii...  

Federal Register 2010, 2011, 2012, 2013

...Determinations: ``The Last Days of Pompeii: Decadence, Apocalypse, Resurrection'' SUMMARY: Notice is hereby given of the...the exhibition ``The Last Days of Pompeii: Decadence, Apocalypse, Resurrection,'' imported from abroad for temporary...

2012-07-20

66

Culture of Dialysis Fluids on Nutrient-Rich Media for Short Periods at Elevated Temperatures Underestimate Microbial Contamination  

Microsoft Academic Search

Recommended culture methods for monitoring bacterial contamination of H2O, dialysate and bicarbonate concentrate in dialysis centers in the USA involves culturing these fluids for 48 h at 37 °C. A variety of media and commercial culture methods are accepted for monitoring these fluids. Over a 3 month period a comparison was made between an acceptable culture method, tryptic soy agar

Ted Pass; Rita Wright; Bill Sharp; George B. Harding

1996-01-01

67

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

68

Lactic Dehydrogenase Activity and the Metabolism of Human Leukocytes in Seven-Day Cultures.  

National Technical Information Service (NTIS)

The normally seen increase in the cathodal band activity of lactic dehydrogenase isozymes at 72 hours of leukocyte culture is accompanied by intense mitotic activity and transformation of lymphocytes into blast-like forms. The increased levels of lactic a...

A. D. Bloom T. Wajima M. Tsuchioka

1966-01-01

69

Scale-up and optimization of an acoustic filter for 200 L/day perfusion of a CHO cell culture.  

PubMed

Acoustic cell retention devices have provided a practical alternative for up to 50 L/day perfusion cultures but further scale-up has been limited. A novel temperature-controlled and larger-scale acoustic separator was evaluated at up to 400 L/day for a 10(7) CHO cell/mL perfusion culture using a 100-L bioreactor that produced up to 34 g/day recombinant protein. The increased active volume of this scaled-up separator was divided into four parallel compartments for improved fluid dynamics. Operational settings of the acoustic separator were optimized and the limits of robust operations explored. The performance was not influenced over wide ranges of duty cycle stop and run times. The maximum performance of 96% separation efficiency at 200 L/day was obtained by setting the separator temperature to 35.1 degrees C, the recirculation rate to three times the harvest rate, and the power to 90 W. While there was no detectable effect on culture viability, viable cells were selectively retained, especially at 50 L/day, where there was a 5-fold higher nonviable washout efficiency. Overall, the new temperature-controlled and scaled-up separator design performed reliably in a way similar to smaller-scale acoustic separators. These results provide strong support for the feasibility of much greater scale-up of acoustic separations. PMID:12325152

Gorenflo, Volker M; Smith, Laura; Dedinsky, Bob; Persson, Bo; Piret, James M

2002-11-20

70

Planktonic and biofilm community characterization and Salmonella resistance of 14-day old chicken cecal microflora derived continuous-flow cultures  

Technology Transfer Automated Retrieval System (TEKTRAN)

These studies were initiated to compare the composition of GIT bacterial communities in birds during the transition period in age where their susceptibility to Salmonella shifts to resistance. One of the challenges to developing probiotics is to develop an efficacious culture of minimal diversity, ...

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

Salivary cortisol and testosterone responses to high-intensity cycling before and after an 11-day intensified training period.  

PubMed

Abstract This study examined salivary cortisol and testosterone responses to two, different high-intensity, ?30-min cycles separated by 2 h rest before and after an 11-day intensified training period. Twelve recreationally active, healthy males completed the study. Saliva samples were collected before, immediately after and 30 min after both bouts with salivary cortisol and testosterone concentrations assessed. Compared with pre-training blunted exercise-induced salivary cortisol, testosterone and cortisol/testosterone responses to both bouts post-training were observed (P < 0.05 for all). Comparing pre- with post-training the absolute exercise-induced salivary cortisol, testosterone and cortisol/testosterone decreased from 11.1 to 3.1 and 7.0 to 4.4 nmol · L(-1) (cortisol), from 407 to 258 and from 473 to 274 pmol · L(-1) (testosterone) and from 12 to 4 and 7 to 5 (cortisol/testosterone) for the first and second bouts, respectively (P < 0.05). No differences in the pre- and post-training rating of perceived exertion (RPE) and heart rate (HR) responses during the cycles or times to fatigue were found (P > 0.05). Fatigue and Burnout scores were higher post- compared with pre-training (P < 0.05). These high-intensity exercise bouts can detect altered hormonal responses following intensified training. This test could assess an athlete's current hormonal status, reductions in salivary cortisol and testosterone responses suggestive of increased fatigue. PMID:23710973

Hough, John; Corney, Robert; Kouris, Antonios; Gleeson, Michael

2013-05-28

73

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

74

Effect of dark/light periods on the polyhydroxyalkanoate production of a photosynthetic mixed culture.  

PubMed

This work studied the possibility of operating a viable polyhydroxyalkanoate (PHA) producing photosynthetic mixed culture (PMC) under dark/light periods without aeration. The culture was subjected to a feast and famine regime, being fed in the dark phase and entering into famine during the light phase. Throughout consecutive feast and famine dark/light periods, the PMC became enriched in PHA accumulating organisms, where non-PHA producing algae that can grow under continuous illumination were out-competed. The very low algae levels enabled greater light and carbon source availability for PHA accumulating bacteria, leading to higher metabolic rates and PHA levels. The PMC reached a PHA content of 30% PHA/VSS, and doubled its specific PHA production rate in relation to PMCs operated previously under continuous illumination. This new process takes a further step towards operating a more cost effective PMC system for PHA production, opening up the possibility for direct sunlight utilization in the future. PMID:24077157

Fradinho, J C; Oehmen, A; Reis, M A M

2013-09-11

75

Different characteristics of rat retinal progenitor cells from different culture periods.  

PubMed

Embryonic retina is one of the possible cell sources that will repair degenerated retina such as retinitis pigmentosa. Retinal progenitor cells isolated from embryonic rats could be cultured and expanded in serum free medium with both epidermal growth factor and basic fibroblast growth factor. We analyzed the properties of two different retinal progenitor cells in terms of culture periods. Retinal progenitor cells from embryonic retina could be expanded keeping immature cell properties and had the ability to migrate into degenerated adult retina from subretinal space after transplantation. They differentiated into neurons and glias, even into photoreceptor cells both in vitro and in vivo. However, they appeared to lose their tissue specificity after a long-term culture. PMID:12697286

Akagi, Tadamichi; Haruta, Masatoshi; Akita, Joe; Nishida, Akihiro; Honda, Yoshihito; Takahashi, Masayo

2003-05-01

76

A "Day in the Lives" of Four Resilient Youths: Cultural Roots of Resilience  

ERIC Educational Resources Information Center

|Grounded in the examples of four impoverished, relocated youths (two Sesotho-speaking orphans in South Africa and two Mexican immigrants in Canada), we explore cultural factors as potential roots of resilience. We triangulate rich qualitative findings (visual, dialogical, and observational) to foreground the particular, as well as acknowledge the…

Theron, Linda; Cameron, Catherine Ann; Didkowsky, Nora; Lau, Cindy; Liebenberg, Linda; Ungar, Michael

2011-01-01

77

Podcasts as a Learning Tool: German Language and Culture Every Day  

ERIC Educational Resources Information Center

|Podcasts provide a straightforward opportunity to stay connected with language, culture, and recent events of German-speaking countries. Podcasts offer clearly articulated, authentic material that can be automatically and regularly delivered to your computer and classrooms; continuously exposing students and teachers to German. This article…

Schmidt, Johannes

2008-01-01

78

A "Day in the Lives" of Four Resilient Youths: Cultural Roots of Resilience  

ERIC Educational Resources Information Center

Grounded in the examples of four impoverished, relocated youths (two Sesotho-speaking orphans in South Africa and two Mexican immigrants in Canada), we explore cultural factors as potential roots of resilience. We triangulate rich qualitative findings (visual, dialogical, and observational) to foreground the particular, as well as acknowledge the…

Theron, Linda; Cameron, Catherine Ann; Didkowsky, Nora; Lau, Cindy; Liebenberg, Linda; Ungar, Michael

2011-01-01

79

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

80

A human arterial organ culture model of postangioplasty restenosis: results up to 56 days after ballooning  

Microsoft Academic Search

Background: Restenosis is a reparative process that is activated in response to injury induced by angioplasty. Despite numerous experimental models of restenosis the number of human arterial organ culture systems is very limited and long-term experiences do not exist. Methods and results: During routine nephrectomies parts of the renal arteries of 88 patients were extracted, 47 were suitable for organ

Rainer Voisard; Jörn v. Eicken; Regine Baur; Jürgen E. Gschwend; Ulrich Wenderoth; Klaus Kleinschmidt; Vinzenz Hombach; Martin Höher

1999-01-01

81

The Class and Cultural Functions of Obesity Discourse: Our Latter Day Child Saving Movement  

ERIC Educational Resources Information Center

|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…

Evans, John; Davies, Brian; Rich, Emma

2008-01-01

82

Swings, Hammocks, and Rocking Chairs as Secure Bases During A Day in the Life in Diverse Cultures  

Microsoft Academic Search

We explored a range of familial supports in the development of “strong” young children. We videotaped one full day in the life of each of five 30-month-old girls in Thailand, Canada, Peru, Italy, and the United Kingdom. A social-interactional conceptual framework guided our interpretive methodology. The diverse cultural tools brought to bear by both the child and her caregivers that

Catherine Ann Cameron; Sombat Tapanya; Julia Gillen

2006-01-01

83

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

...must the Secretary do at the end of the 60-day comment period if the...Section 291.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR ECONOMIC ENTERPRISES...must the Secretary do at the end of the 60-day comment...

2010-04-01

84

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

...must the Secretary do at the end of the 60-day comment period if the...Section 291.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR ECONOMIC ENTERPRISES...must the Secretary do at the end of the 60-day comment...

2009-04-01

85

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, 2013 CFR

...must the Secretary do at the end of the 60-day comment period if the...Section 291.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR ECONOMIC ENTERPRISES...must the Secretary do at the end of the 60-day comment...

2013-04-01

86

Culture and Character Education in a Jewish Day School: A Case Study of Life and Experience  

ERIC Educational Resources Information Center

|This article addresses how to teach character comprehensively by studying ways a school's concurrent curricula (the official curriculum, the operational curriculum, the extra curriculum, and the hidden curriculum) can be used to teach character to students. A single case study analyzes the curriculum at a Jewish day school by examining school…

Roso, Calvin G.

2013-01-01

87

Cultural techniques for altering the flowering time and double-cropping short-day varieties  

Technology Transfer Automated Retrieval System (TEKTRAN)

July-plugged transplants of short-day cv. Strawberry Festival (Fragaria x ananassa), flowered in October and November even though they were grown under long photoperiods and warm temperatures (greater than 21 degrees C) in July and August. These unexpected results were attributed to a high plant de...

88

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

EPA Science Inventory

This data set contains data for CTEPP-OH concerning the child?s activities at the day care center over the 48-h monitoring period. The diary was divided into three time periods over the 48-h monitoring interval. The Food Survey collected information on the frequency and types of ...

89

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

90

The 62 Day X-ray Period of the Ultra-luminous X-ray Source M82 X-1 is Likely Super-orbital  

NASA Astrophysics Data System (ADS)

We have analyzed all archival RXTE/PCA monitoring observations of the intermediate-mass black hole (IMBH, mass range of a few 100-1000 solar masses) candidate and ultraluminous X-ray source (ULX) M82 X-1 in order to study the properties of its previously discovered 62 day X-ray period. The high average X-ray luminosity of M82 X-1 (roughly 5 x 10^40 ergs/sec) suggests that the compact source is very likely a black hole. Given that there are no known black hole binaries with super-orbital periods as short as 62 days (the shortest known black hole super-orbital period is a factor of 3 longer), it has been argued that the observed period is the orbital period of the binary. Using approximately 2000 days of RXTE/PCA monitoring data obtained with an observing cadence of approximately once every 3 days, we studied the stability of this period. We find clear evidence for phase evolution of the light curve that can be modeled with a period derivative of -0.009 sec/sec. This value indicates that the 62 day X-ray period's phase is changing with a timescale (period/period derivative) of ~ 20 years. Such a value is unusually fast for any known orbital evolution phenomenon. Similar, rapidly evolving periods have been previously reported from some accreting compact binaries and have been ascribed to a precessing accretion disk. Furthermore, we extracted the average phase-resolved X-ray energy spectra of the source (3-15 keV) and fit them with a model consisting of a standard thermal accretion disk and a power-law. We find that it is the disk's contribution to the total flux that is responsible for the periodic modulation while the power-law flux remains constant with phase. This is also consistent with a precessing accretion disk as the observed variations in X-ray intensity in this model can be ascribed to changes in the projected area of the accretion disk. We argue that these two lines of evidence suggest that the previously reported 62 day X-ray period may be super-orbital in nature.

Ranga Reddy Pasham, Dheeraj; Strohmayer, T. E.

2013-04-01

91

In vitro culture and characterization of putative porcine embryonic germ cells derived from domestic breeds and Yucatan mini pig embryos at Days 20–24 of gestation  

Microsoft Academic Search

Embryonic germ cells (EGC) are cultured pluripotent cells derived from primordial germ cells (PGC). This study explored the possibility of establishing porcine EGC from domestic breeds and Yucatan mini pigs using embryos at Days 17–24 of gestation. In vitro culture of PGC from both pooled and individual embryos resulted in the successful derivation of putative EGC lines from Days 20

Stoyan G. Petkov; Hendrik Marks; Tino Klein; Rodrigo S. Garcia; Yu Gao; Henk Stunnenberg; Poul Hyttel

2011-01-01

92

An effect of the 27 days solar rotation period on the electron density in the upper and topside ionosphere  

NASA Astrophysics Data System (ADS)

We have analyzed the correlation between the 27 days solar rotation as seen in F10.7 observations and in F peak electron density measurements. Using data (foF2) from ionosonde stations from years 1966-1991 in the northern and southern hemisphere (North hemisphere- Boulder, Millstone Hill, Juliusruh, Pruhonice, Irkutsk, Tokyo; South hemisphere - Argentine Island, Grahamstown, Cape Town, Canberra, Auckland, Tahiti) we have found that a delay between F107 measured at Ottawa and a particular ionosonde station increases almost linearly from the west to the east from appx. 0 to appx. 4 days. A north-south asymetry in the delay was found. We investigate this effect using numerical simulations by the FLIP model.

Bilitza, D.; Truhlik, V.; Triskova, L.

2009-04-01

93

11.5-day rat embryos cultured in vitro after introduction of immunoglobulin G into the vitelline circulation.  

PubMed

The fate of rat immunoglobulin G (IgG) in the 11.5-day-rat conceptus cultured in vitro has been studied utilizing the intravitelline cannulation technique. When IgG bound to colloidal gold was introduced into the vitelline circulation, gold particles were detected on the luminal surface of embryonic endothelial cells, in both coated pits and vesicles and in various portions of the vacuolar system of the embryonic endothelial cell. By means of the radiolabeled macromolecule, it has been demonstrated that the internalized IgG was not degraded. In comparison, digested products of radiolabeled bovine serum albumin (BSA) were detected in culture media after the macromolecule was introduced into the conceptus. It was therefore concluded that the 11.5-day rat embryo captures IgG probably by receptor-mediated endocytosis and does not degrade the macromolecule, indicating that IgG is not routed to the lysosomal compartment of the endothelial cell even though the embryo has the capacity to digest BSA. It appears therefore that the embryo is endowed with the capacity to handle the IgG macromolecule well before the macromolecule is introduced into it for passive immunity. PMID:9416355

Mensah-Brown, E P; Pratten, M K

1997-01-01

94

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

95

Evidence of a 2-day periodicity of striae formation in the tropical scallop Comptopallium radula using calcein marking  

Microsoft Academic Search

The periodicity of striae formation in the tropical scallop Comptopallium radula (Indo-West Pacific Ocean) was investigated with an in situ marking technique, using the calcein fluorochrome. To minimize scallop stress caused by excessive handling, in situ benthic chambers were used for marking experiments. Once marked, scallops (shell height range: 38.4–75.8 mm) remained on site in a large benthic enclosure and were

Julien Thébault; Laurent Chauvaud; Jacques Clavier; Renaud Fichez; Eric Morize

2006-01-01

96

Comparison of PCR versus Culture for Detection of Mycobacterium bovis after Experimental Inoculation of Various Matrices Held under Environmental Conditions for Extended Periods.  

PubMed

The purpose of this study was to compare the performance of a molecular detection technique (nested PCR) with that of mycobacterial culture in the detection of Mycobacterium bovis DNA in a set of 687 samples of experimentally inoculated environmental substrates (hay, soil, corn, water) exposed to natural weather conditions in Michigan. Four replicates of each substrate were used; half were autoclaved for sterilization, all were inoculated with 50,000 CFU of M. bovis isolated from Michigan livestock, and all were placed in outdoor enclosures, with half under shade and the other half exposed to direct sunlight. Samples were tested for the presence of M. bovis during one 12-month period, with monthly sample testing and during three 12-week periods (winter, spring, summer) with weekly sample testing. Samples were subjected to mycobacterial culture for isolation of M. bovis and a nested PCR with two primer sets targeting IS6110 to detect M. bovis DNA. In 128 samples tested during the 12-month period, M. bovis was not detectable by culture after 2 months but M. bovis DNA was detectable by PCR for at least 7 months. Of the 559 samples tested during the 12-week periods, PCR detected M. bovis DNA for up to 88 days in all of the sample types. There were no significant differences in the detection of M. bovis between shade and sun samples or between sterile and unsterilized samples, regardless of the detection method (PCR or culture). For use in epidemiologic investigations, the PCR assay was more rapid than mycobacterial culture, was not hindered by contaminating organisms, and detected M. bovis DNA in environment samples much longer after initial contamination than mycobacterial culture did. PMID:23956383

Adams, Angela P; Bolin, Steven R; Fine, Amanda E; Bolin, Carole A; Kaneene, John B

2013-08-16

97

Diabetes and Cancer in Veterans of Operation Ranch Hand After Adjustment for Calendar Period, Days of Spraying, and Time Spent in Southeast Asia  

Microsoft Academic Search

Background: The Air Force Health Study was launched in 1980 as part of a Federal effort to resolve the Agent Orange issue. Objectives: To study diabetes and cancer with additional adjustment for days of spraying, calendar period of service, and time spent in Southeast Asia (SEA). Methods: This was a longitudinal study of veterans of Operation Ranch Hand, the unit

Joel E. Michalek; Marian Pavuk

2008-01-01

98

Role of caspase-12 in amyloid beta-peptide-induced toxicity in organotypic hippocampal slices cultured for long periods.  

PubMed

Amyloid beta (Abeta) toxicity has been implicated in cell death in the hippocampus, but its specific mechanisms are poorly understood. In this study, Abeta-induced cell death was investigated in organotypic hippocampal slice cultures (OHCs) that were cultured for various periods in vitro. There were no obvious histological differences among slices cultured for 3 to 7 weeks in vitro. Although there was little neurotoxicity after treatment with Abeta25-35 in OHCs cultured for relatively shorter periods (3-5 weeks), age-dependent cell death was evident in OHCs cultured for relatively longer periods (6-7 weeks) after exposure to Abeta25-35. In OHCs cultured for 7 weeks, S-allyl-L-cysteine (SAC), a component of aged garlic extract, protected the cells in areas CA1 and CA3 and the dentate gyrus from Abeta25-35-induced toxicity. The immunoreactivity of cleaved caspase-12 was increased whereas that of glucose-regulated protein 78 was not altered after exposure to Abeta25-35. The increases in the cleaved caspase-12 were also reversed by simultaneously applied SAC. These results suggest that OHCs cultured for relatively longer periods are more susceptible to Abeta-induced toxicity and that the Abeta-induced cell death involves caspase-12-dependent pathways. It is also suggested that SAC is able to protect against the Abeta-induced neuronal cell death through the inhibition of the caspase-12-dependent pathway. PMID:17452809

Ishige, Kumiko; Takagi, Noritaka; Imai, Toru; Rausch, Wolf Dieter; Kosuge, Yasuhiro; Kihara, Tetsuroh; Kusama-Eguchi, Kuniko; Ikeda, Hiroko; Cools, Alexander Rudolf; Waddington, John Lionel; Koshikawa, Noriaki; Ito, Yoshihisa

2007-04-24

99

Eastward propagating planetary waves with periods of 1-5 days in the winter Antarctic stratosphere as revealed by MERRA and lidar  

NASA Astrophysics Data System (ADS)

study presents the first report of planetary wave (PW) influences on significant temperature perturbations (10-20 K) within a course of one day detected by an Fe lidar from 35 to 51 km in the austral winter of 2011 at McMurdo (77.8°S, 166.7°E), Antarctica. Such large temperature perturbations are captured in the Modern Era Retrospective-Analysis for Research and Applications (MERRA) data and correspond to various phases of eastward propagating PWs with periods of 1-5 days as revealed in MERRA. The strongest PW dominating the temperature perturbations has a period of 4-5 days with wavenumber -1. A 2-day wave with wavenumber -2 and a 1.25-day wave with wavenumber -3 also have significant influences. We find that these eastward propagating PWs are highly confined to winter high latitudes, likely because negative refractive indices equatorward of ~45°S result in evanescent wave characteristics and prevent the PWs from propagating to lower latitudes. The Eliassen-Palm flux divergence and instability analyses suggest that barotropic/baroclinic instability at 50°S-60°S induced by the stratospheric polar night jet and/or the "double-jet" structure is the most likely wave source. Such instability in the region poleward of 70°S is a complementary source for the 4-day wave, where we find that the heat flux of the 4-day wave is large and transported from ~70°S toward the pole above 40 km. This transport direction is likely linked to the meridional gradient of background temperature. The migrating diurnal tide near 78°S in the upper stratosphere is discernable, but significantly smaller than that of the dominant 4-day wave.

Lu, Xian; Chu, Xinzhao; Fuller-Rowell, Tim; Chang, Loren; Fong, Weichun; Yu, Zhibin

2013-09-01

100

Swift Observations of the High-mass X-Ray Binary IGR J16283-4838 Unveil a 288 Day Orbital Period  

NASA Astrophysics Data System (ADS)

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 Po = 287.6 ± 1.7 days (with a significance higher than 4 standard deviations). The profile of the light curve folded at Po 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.; D'Aì, A.; Masetti, N.; Tagliaferri, G.

2013-09-01

101

Count of splenic stromal precursor cells in mice and expression of cytokine genes in these cells in primary cultures during different periods after immunization of animals with S. typhimurium antigens.  

PubMed

Injection of S. typhimurium antigens significantly (9-fold) increased cloning efficiency and, hence, the content of stromal precursor cells in the spleen as soon as after 24 h. These parameters returned to normal by days 6-15 after immunization. Cultured splenocytes collected from immune (but not intact) animals expressed the genes of proinflammatory cytokines IL-1? (on days 1, 6, 15) and IL-6 (on days 1 and 6), TNF-? (on days 6 and 15), and of IFN-? and IL-18 (on days 6 and 15). The expression of IL-4 gene was suppressed on day 6 after immunization, of IL-10 gene on days 1 and 6, of IL-6 gene on day 15. Hence, no signs of immune response suppression by stromal cells were found in this system. The spectrum and dynamics of the expression of pro- and anti-inflammatory cytokine genes in stromal cell cultures from the spleen of immunized mice seemed to correspond to those needed for support of the immune response to S. typhimurium antigens, observed in immunized animals. The results indicate possible involvement of stromal cells in the realization of immune response in vivo. The increase of stromal precursor cells cloning efficiency in response to antigen injection could not be reproduced in vitro: the presence of S. typhimurium antigens in primary cultures of intact mouse bone marrow and spleen throughout the entire period of culturing ? 20-fold reduced cloning efficiency in cultures. PMID:22238749

Gorskaya, Yu F; Danilova, T A; Mezentseva, M V; Shapoval, I M; Narovlyanskii, A N; Nesterenko, V G

2011-06-01

102

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.

Bourbeau, Paul P.; Foltzer, Michael

2005-01-01

103

Culture of chondrocytes in alginate surrounded by fibrin gel: characteristics of the cells over a period of eight weeks  

PubMed Central

OBJECTIVE—To produce tissue engineered cartilage by human articular chondrocytes in vitro for further use in in vivo manipulations for the treatment of cartilage defects.?METHODS—Human articular chondrocytes were cultured in 0.5%, 1.0%, and 2.0% of alginate for up to four weeks. The optimal concentration of an alginate matrix for cell replication and for aggrecan synthesis by chondrocytes was determined. DNA content in the different culture conditions was measured after two and four weeks. Aggrecan synthesis rates and accumulation in the surrounding extracellular matrix were assessed by [35S]sulphate incorporation after the same periods of culture. To follow the outgrowth of chondrocytes from the alginate beads, chondrocytes were cultured for four weeks in 0.5 or 1.0% alginate surrounded by 0.25 or 0.5% fibrin gel. DNA content of each culture was measured after different culture periods. Finally, human chondrocytes in 1.0% alginate beads were embedded in 0.5% fibrin gel for eight weeks. Immunohistochemical analysis for aggrecan, type I and II collagen was performed weekly.?RESULTS—At two weeks the DNA content in each culture significantly increased in 0.5 and 1.0% alginate cultures in comparison with baseline values. This increase continued until week 4 at the three alginate concentrations. Aggrecan synthesis at two weeks was highest in 0.5 and 1.0% alginate cell cultures. At four weeks aggrecan synthesis rates decreased independently of the alginate concentrations. Aggrecan mainly accumulated in the interterritorial matrix. Proliferation of chondrocytes in alginate and outgrowth of these cells in the surrounding fibrin gel were evident throughout the culture period. The accumulation of aggrecan and type II collagen around the cells, in alginate as well as in fibrin gel, gradually increased over the culture period. Type I collagen appeared after six weeks in alginate and in the surrounding fibrin.?CONCLUSION—Human chondrocytes proliferate in this culture system, show an outgrowth into the surrounding fibrin, and synthesise a cartilage-like matrix for up to eight weeks.??

Almqvist, K; Wang, L; Wang, J; Baeten, D; Cornelissen, M; Verdonk, R; Veys, E; Verbruggen, G

2001-01-01

104

Continuous influenza virus production in cell culture shows a periodic accumulation of defective interfering particles.  

PubMed

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

Frensing, Timo; Heldt, Frank Stefan; Pflugmacher, Antje; Behrendt, Ilona; Jordan, Ingo; Flockerzi, Dietrich; Genzel, Yvonne; Reichl, Udo

2013-09-05

105

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

ERIC Educational Resources Information Center

This article investigates the cultural identities of adolescent immigrants in the pre-migration period and during the first 3 years after immigration. The target population consists of high-school Jewish adolescents from Russia and Ukraine participating in an Israeli immigration program. In this program, Jewish adolescents immigrate to Israel…

Tartakovsky, Eugene

2009-01-01

106

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

Microsoft Academic Search

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 Den- mark 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

JEANETT BAUER; ÅSE B. ANDERSEN; DORTHE ASKGAARD; STEN B. GIESE; BIRGER LARSEN

1999-01-01

107

Pre-culture period of mesenchymal stem cells in osteogenic media influences their in vivo bone forming potential  

Microsoft Academic Search

The objective of this study was to investigate if the in vitro pre-culture period in osteogenic media of rat mesenchymal stem cells (MSCs), influences their ability to regenerate bone when implanted in a critical size cranial defect. MSCs were harvested from the bone marrow of 6-8 weeks old male Fisher rats and expanded in vitro in osteogenic media for different

H. Castano-Izquierdo; J. Alvarez-Barreto; J. van den Dolder; J. A. Jansen; A. G. Mikos; V. I. Sikavitsas

2007-01-01

108

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

ERIC Educational Resources Information Center

|This article investigates the cultural identities of adolescent immigrants in the pre-migration period and during the first 3 years after immigration. The target population consists of high-school Jewish adolescents from Russia and Ukraine participating in an Israeli immigration program. In this program, Jewish adolescents immigrate to Israel…

Tartakovsky, Eugene

2009-01-01

109

Cultural identities of adolescent immigrants: a three-year longitudinal study including the pre-migration period.  

PubMed

This article investigates the cultural identities of adolescent immigrants in the pre-migration period and during the first 3 years after immigration. The target population consists of high-school Jewish adolescents from Russia and Ukraine participating in an Israeli immigration program. In this program, Jewish adolescents immigrate to Israel without their parents, live in kibbutzim and boarding schools, and study in Israeli schools. Participants filled out questionnaires four times: half a year before their departure from the homeland and once a year for three consecutive years after their arrival to Israel. Changes in the cultural identities during immigration were curvilinear. Three stages were distinguished: devaluation of the homeland and idealization of the country of immigration in the pre-migration period, disillusionment with the receiving country and strengthening of the homeland cultural identity in the first year after immigration, and the formation of an inconsistent bi-cultural identity in the later post-migration period. Throughout the entire post-migration period, immigrants' attitude towards the receiving country was more positive than their attitude towards their homeland; however, immigrants' sense of belonging to the homeland was stronger than their sense of belonging to the receiving country. Pre-migration cultural identities and perceived discrimination in the receiving country predicted post-migration cultural identities of immigrants. Immigrant adolescents from ethnically homogenous Jewish families had a less positive attitude towards Russia/Ukraine, a more positive attitude towards Israel, and a weaker sense of belonging to Russia/Ukraine as compared to immigrants from ethnically mixed families. PMID:19636762

Tartakovsky, Eugene

2008-11-25

110

[Seiichi Ishida, a chief physician of Shinsaku Takasugi: culture and politics as seen by a doctor of the Reformation period].  

PubMed

This is first paper on Seiichi Ishida, who worked as the Bakan town doctor at the end of the Edo period. Seiichi was initially a private practice physician of Habuura, Asa-gun. He then studied Dutch medicine under Banri Hyakutake of Hakata and on his return home he further prospered. From the Kaei period, the assessment of Seiichi as an artistic, cultured person became high and at the beginning of the Ansei period he moved to Okinoshima of Shimonoseki. By the Bunkyu period, Seiichi held an important place in the history of cultural exchange among Shimonoseki's cultural figures. In the Keio period he moved to Odo, which was to the West of Isakiura and further inland. It was a very tranquil and beautiful place. It was from around this time that his socialization commenced with samurai belonging to the reformist group of the Hagi Domain. Shinsaku Takasugi in particular, adored Seiichi as a friend of the heart who loved Chinese poetry, and trusted him as his chief physician. Furthermore, Seiichi's political activity intensified and it has become clear that he was deeply involved in rescuing Botoni Nomura from Himeshima and the Hagi Domain's production of counterfeit currency. PMID:20503779

Kameda, Kazukuni

2009-12-01

111

Characterization of opioid-dependent glial development in dissociated and organotypic cultures of mouse central nervous system: critical periods and target specificity.  

PubMed

Opioid-dependent changes in glial growth were characterized in primary dissociated and organotypic explant cultures of the developing mouse central nervous system (CNS) continuously grown in the presence of an endogenous opioid, [Met5]enkephalin, or an opiate drug, morphine. The glia in dissociated, astrocyte-enriched cultures derived from the cerebra of postnatal day 1, 3, or 5 mice, respectively, displayed age-dependent reductions in glial numbers that occurred at 3, 7, or 9 days in vitro (DIV) in response to continuous [Met5]enkephalin (10(-6) M) exposure. In contrast, in cultures derived from gestational day 19 mice, glial numbers were not reduced following continuous exposure to 10(-6) M [Met5]enkephalin during the first 7 days in vitro. An examination of [3H]thymidine incorporation by glial fibrillary acidic protein-(GFAP) immunoreactive astrocytes with flat (type 1) morphology in dissociated cultures derived from postnatal day 1 mice revealed that the reduction in glial numbers at 3 DIV was not immediately preceded by a reduction in the rate of [3H]thymidine incorporation at 2 DIV, although previous studies have shown that opioids inhibit the rate of [3H]thymidine incorporation by more mature astrocytes at 4 or 6 DIV. Early (i.e., at 2 to 3 DIV) changes in glial numbers may result from an inhibition of the proliferative rate of non-GFAP-containing glia or astrocyte precursors, or an enhanced rate of glial death. The rate of [3H]thymidine incorporation by GFAP-immunoreactive astrocytes with process-bearing (type 2) morphology was unchanged by opioid treatment. In separate experiments, a comparison of the area of growth of GFAP-immunoreactive astrocytes in paired symmetrical (right vs left) organotypic explant cultures demonstrated that opiates (i.e., 10(-5) M morphine) can inhibit astrocyte growth when the normal histiotypic organization of neurons and glia are maintained, and that there are regional differences in astrocyte responsiveness. Opioid-dependent alterations in astrocyte growth were mediated through specific opioid receptors since they were prevented by simultaneous treatment with (-)naloxone. The results suggest that the ability of opioids to modify glial growth is highly selective and varies depending on astrocyte type, as well as temporal and regional factors. Spatial and temporal differences in the response of developing glia to opioids may determine critical periods of CNS vulnerability to opioids in the maturing brain. PMID:1769103

Hauser, K F; Stiene-Martin, A

1991-10-21

112

The Writing Consultant as Cultural Interpreter: Bridging Cultural Perspectives on the Genre of the Periodic Engineering Report.  

ERIC Educational Resources Information Center

|States that the periodic engineering report (a fixture of engineering classrooms and engineering practice) can become a source of conflict when North American engineers collaborate with colleagues abroad. Relates experiences of a writing consultant on such a project. Finds differences in tone and reader expectations caused misunderstandings. Uses…

Artemeva, Natasha

1998-01-01

113

Glucose and scyllo-inositol impair phosphoinositide hydrolysis in the 10.5-day cultured rat conceptus: a role in dysmorphogenesis?  

PubMed

Culture of the postimplantation rat conceptus from gestational day 9.5-10.5 in media supplemented with d-glucose or scyllo-inositol decreases tissue myo-inositol and phosphoinositides with a concomitant increase in dysmorphogenesis. A number of mitogenic agents initiate cellular proliferation and differentiation through receptors coupled to phosphoinositide hydrolysis. To test whether the decrease in conceptus phosphoinositides is associated with a reduced phosphoinositide hydrolytic response, we developed a protocol to stimulate phosphoinositide hydrolysis. Phosphoinositide hydrolysis was monitored by measurement of [3H]inositol phosphates after preincubation in serum free media. We examined the ability of serum, platelet-derived growth factor (PDGF), epidermal-derived growth factor (EGF), insulin-like growth factor 1 (IGF-1), insulin-like growth factor 2 (IGF-2), endothelin-1 (ET-1), and endothelin-2 (ET-2), to stimulate phosphoinositide hydrolysis. As measured by [3H]inositol monophosphate ([3H]InsP1) accumulation, normal rat seru, ET-1, and ET-2 stimulated phosphoinositide hydrolysis 47%, 420%, and 154% above the basal rate observed in serum free controls. EGF stimulated a statistically insignificant 15% increase while PDGF, IGF-1, or IGF-2 were without effect. We further characterized ET-1 stimulated phosphoinositide hydrolysis. Dose-response studies disclosed that incremental increases in [3H]InsP1 (129-420%) are observed over a concentration range of 10-1,000 nM. Maximal stimulation was not reached even at 1,000 nM. Temporally [3H]InsP1 and [3H]InsP3 levels increased linearly during incubation periods of 15-60 min. We further analyzed ET-1 stimulated phosphoinositide hydrolysis in 10.5-day conceptuses cultured for 24 hr in media containing high concentrations of glucose (23.3-56.6 mM) or scyllo-inositol (0.55, 5.5 mM). Under these dysmorphogenic conditions that concomitantly decrease the phosphoinositide precursor pool the response to ET-1 was blunted 28-76% for glucose and 29-65% for scyllo-inositol. This suggests that the effect of glucose and scyllo-inositol on lowering phosphoinositide precursor pools also results in a decrease in the response to agonists using the inositol/lipid intracellular pathway. This impaired signaling response may contribute to initiating dysmorphogenic events in diabetic embryopathy. PMID:8248864

Strieleman, P J; Metzger, B E

1993-09-01

114

A global climate-chemistry model study of present-day tropospheric chemistry and radiative forcing from changes in tropospheric O3 since the preindustrial period  

NASA Astrophysics Data System (ADS)

We present simulations of present-day tropospheric O3 and of changes in its concentrations and the associated radiative forcing since the industrial revolution. Numerical experiments were conducted using a global tropospheric climate-chemistry model (GCCM) developed by incorporating the University of Oslo (UiO) photochemical module (a reduced tracer scheme that lumps nonmethane volatile organic compounds (NMVOCs) to simulate the CO-NOx-HOx-O3 system) into State University of New York at Albany-Community Climate Model 3 (SUNYA CCM3). The GCCM was run with emissions of pollutants corresponding to two periods, the early 1990s and the preindustrial period, and the simulated tropospheric O3 is used for off-line calculations of radiative forcing. The study consists of two parts: an evaluation of the GCCM-simulated present-day distributions of tropospheric chemical species with sensitivity experiments to test the effects of NO production by lightning and stratospheric O3 influx on the simulated results, and the radiative forcing due to O3 changes since the industrial revolution. The model can reproduce the temporal and spatial variations of O3 precursors, including CO and NOx (NO + NO2), in the Northern Hemisphere (NH), although there are biases such as the larger CO concentrations in the Southern Hemisphere (SH) and the smaller NOx concentrations in the tropical middle-upper troposphere. The simulated OH concentrations are sensitive to the NO production by lightning. The simulated concentrations of tropospheric OH have a global and annual average of about 9.8 × 105 molecules/cm3 (corresponding to a tropospheric CH4 lifetime due to OH of 8.6 years), when the annual production of NO by lightning is about 6 TgN/yr. Compared with O3 sonde climatology, the model can simulate the seasonal variations of lower to middle tropospheric O3 within the observed interannual variations when the stratospheric O3 influx is about 600 Tg/yr, although detailed biases exist in the middle troposphere during fall to winter and in the continental boundary layer during summer. The present-day tropospheric O3 burden is calculated to be about 376 Tg (or 34 DU) with a net tropospheric chemical production of about 513 Tg/yr. Using realistic stratospheric O3 concentrations instead of a prescribed O3 influx as the upper boundary condition enhances the model biases in the extratropical upper-middle tropospheric O3 concentrations. The model calculates a globally and annually averaged increase in tropospheric O3 burden of about 13 DU since the preindustrial period, if the production of NO by lightning is kept the same for both the present-day and preindustrial periods. The annually and globally averaged instantaneous radiative forcing due to the O3 changes is about 0.54 W m-2, with forcing larger than 1 W m-2 occurring over most subtropical to middle-latitude areas in the NH during summer. An assumed 50% reduction in NO production by lightning in the preindustrial period results in an increase of tropospheric O3 change by 10%, with the associated radiative forcing enhanced by 11%.

Wong, Sun; Wang, Wei-Chyung; Isaksen, Ivar S. A.; Berntsen, Terje K.; Sundet, Jostein K.

2004-06-01

115

NPR: Day to Day  

NSDL National Science Digital Library

Hosted by award-winning National Public Radio (NPR) correspondent Alex Chadwick, Day to Day is a way for regular NPR listeners to listen to smart news coverage during the middle of the day or during their lunch-hour. Fortunately, Day to Day is available online, complete with an archive dating back to January 2003. Produced in the NPR West office in Los Angeles, and includes a number of NPR regulars and contributors from the online publication Slate. Day to Day also features the helpful daily reports from the Minnesota Public Radio show, Marketplace, which is "an informative conversation about business and economic news". Other regular features on Day to Day include commentaries on recent music releases from independent music critic Christian Bordal and curious and novel exposes and reports on the "odd underbelly" of the City of Angels, direct from Southern California.

116

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

117

Blue Basin Trail Cultural Resource Inventory Survey in the Sheep Rock Unit, John Day Fossil Beds National Monument, Grant County, Oregon.  

National Technical Information Service (NTIS)

An intensive cultural resource inventory survey was conducted over approximately 3.7 km, of a proposed scenic trail construction in the Blue Basin area of the Sheep Rock Unit, John Day Fossil Beds National Monument, Grant County, east central Oregon. The ...

N. Steggell K. Sikoryak J. Sikoryak

1981-01-01

118

Cultural interactions during the Ubaid and Halaf periods: Tell Kurdu (Amuq Valley, Turkey) obsidian sourcing  

Microsoft Academic Search

In order to decipher cultural influences, the inter-regional contacts of the Tell Kurdu settlement have been investigated through obsidian sourcing for the Halaf and Ubaid phases (c. 5700–4300 cal. BC). The chemical composition of nine artifacts from three archaeological levels of the site have been determined and compared to source data obtained in our laboratory or available in the literature.

C. Bressy; G. Poupeau; K. A. Yener

2005-01-01

119

[Hormonal regulation of the production of serum albumin by cultured hepatocytes of rats during prenatal and postnatal period of development].  

PubMed

The effects of several hormones on the production of immunoreactive serum albumin (SA) were examined in primary cultures of liver cells obtained from rat fetuses on 21-22 days of gestation of from 3-week old rats. Cortisol, bovine insulin and human growth hormone stimulated SA production in both types of liver cell cultures during 20 h-incubation. L-Triiodothyronine (T3; 10(-9)-10(-7) M) weakly stimulated SA production by hepatocytes from the rats, but markedly inhibited it in cultures of fetal rat liver cells in a dose-dependent manner. In contrast, T3 action on total RNA and protein biosynthesis, estimated as the incorporation of labelled precursors into macromolecules, was stimulatory one in both types of cell cultures. It is concluded that hormonal regulation of SA production is similar in cultured liver cells from fetal and early postnatal rats except for the action of T3. The physiological importance of striking developmental change of T3 action on SA production remains to be determined. PMID:2204452

Baranova, I N; Gudochnikov, V I; Fedotov, V P

1990-06-01

120

Effect of 7-day daily replacement of culture medium containing Eurycoma longifolia Jack constituents on the Malaysian Plasmodium falciparum isolates  

Microsoft Academic Search

Six Malaysian chloroquine-resistant Plasmodium falciparum isolates were cultured in vitro following the candle-jar method. Antimalarial evaluations of daily replacement of culture medium containing chloroquine and a semi-purified extract of Eurycoma longifolia Jack (containing 13?,18-dihydroeurycomanol (1), eurycomanol-2-O-?-d-gluco-pyranoside (2), eurycomanol (3) and eurycomanone (4)) were performed on 6-well plates at 37°C for a week. Presence or absence of the parasites was determined

Hooi Hoon Ang; Kit Lam Chan; Joon Wah Mak

1995-01-01

121

Milk Culture Results in a Large Norwegian Survey—Effects of Season, Parity, Days in Milk, Resistance, and Clustering  

Microsoft Academic Search

A nationwide random computerized assignment sur- vey that included 3,538 sets of 4 quarter milk samples from 2,834 dairy cows was conducted during 2000. Ev- ery fifth cow from every 50th herd was randomly se- lected for sampling and culture during each quarter of the year. Milk culture results of pathogens known to be related to mastitis were recorded regardless

O. Østerås; L. Sølverød; O. Reksen

2006-01-01

122

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.

123

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

124

Socio-cultural factors surrounding mental distress during the perinatal period in Zambia: a qualitative investigation  

PubMed Central

Background The presence of mental distress during pregnancy and after childbirth imposes detrimental developmental and health consequences for families in all nations. In Zambia, the Ministry of Health (MoH) has proposed a more comprehensive approach towards mental health care, recognizing the importance of the mental health of women during the perinatal period. Aim The study explores factors contributing to mental distress during the perinatal period of motherhood in Zambia. Methods A qualitative study was conducted in Lusaka, Zambia with nineteen focus groups comprising 149 women and men from primary health facilities and schools respectively. Findings There are high levels of mental distress in four domains: worry about HIV status and testing; uncertainty about survival from childbirth; lack of social support; and vulnerability/oppression. Conclusion Identifying mental distress and prompt referral for interventions is critical to improving the mental health of the mother and prevent the effects of mental distress on the baby. Recommendation Strategies should be put in place to ensure pregnant women are screened for possible perinatal mental health problems during their visit to antenatal clinic and referral made to qualified mental health professionals. In addition further research is recommended in order to facilitate evidence based mental health policy formulation and implementation in Zambia.

2012-01-01

125

[Study on the cultural relic material site and period by EDXRF].  

PubMed

With the development of the element analysis technology, the energy-dispersive X-ray fluorescence (EDXRF) technique is now well established as a powerful tool for qualitative and quantitative elements analyses when studying on the cultural relic materials. Being characteristic of quick and non-destructive analysis, involving high-precision, a wide concentration range, easy sample preparation, good reproducibility and synchronously analyzing the elements from Na(Z11) to U(Z92), this technique is appropriate for analyzing precious ancient ceramics. In the present study, the major, minor and trace elements compositions of 6 samples from Guan kiln in the southern song dynasty, 6 samples from Longquan kiln in the Southern Song dynasty and 2 modern imitations were analyzed by EDXRF. The results prove further that the raw materials in Hangzhou and Longquan are different and stable, and show that EDXRF is a successful and feasible method for identifying the provenance and dynasty an ancient ceramic originated from. PMID:18720829

Zhou, Shao-Hua; Fu, Lue; Leung, Bao-Liu

2008-05-01

126

Distribution, optimum detection time and antimicrobial susceptibility rates of the microorganisms isolated from blood cultures over a 4-year time period in a Turkish university hospital and a review of the international literature.  

PubMed

This study retrospectively examined 8986 blood cultures from patients over a 4-year time period in an eastern Turkish university hospital to determine the detection times and distribution of isolated microorganisms using the automated BACTEC 9050 and BACTEC 9120 systems. A total of 1914 (21.3%) blood cultures contained pathogenic microorganisms and 252 (2.8%) positive cultures were considered contaminated. Of all the cultures, 18 (0.2%) were false positives and 224 (2.5%) were false negatives. In cultures containing pathogenic microorganisms, Gram-positive and Gram-negative bacterial isolation rates were 436 (22.8%) and 1440 (75.2%), respectively, and yeasts (all Candida sp.) were found in 38 (2.0%) cultures. Coagulase-negative staphylococci occurred in 936 (48.9%) cultures and Staphylococcus aureus occurred in 302 (15.8%) cultures. The mean detection time for all of the pathogens was 21 h and Brucella spp were isolated within 10 days. This study helps in understanding the epidemiology of the region and in providing positive therapeutic approaches. A review of the international literature helps to place this understanding into a global context. PMID:19094435

Kurto?lu, M G; Bozkurt, H; Tuncer, O; Kesli, R; Berktas, M

127

Inhibitory effect of essential oils against Lactobacillus rhamnosus and starter culture in fermented milk during its shelf-life period.  

PubMed

The use of essential oils in foods has attracted great interest, due to their antagonistic action against pathogenic microorganisms. However, this action is undesirable for probiotic foods, as products containing Lactobacillus rhamnosus. The aim of the present study was to measure the sensitivity profile of L. rhamnosus and a yogurt starter culture in fermented milk, upon addition of increasing concentrations of cinnamon, clove and mint essential oils. Essential oils were prepared by steam distillation, and chemically characterised by gas chromatography-mass spectrometry (GC-MS) and determination of density. Survival curves were obtained from counts of L. rhamnosus and the starter culture (alone and in combination), upon addition of 0.04% essential oils. In parallel, titratable acidity was monitored over 28 experimental days. Minimum inhibitory concentration values, obtained using the microdilution method in Brain Heart Infusion medium, were 0.025, 0.2 and 0.4% for cinnamon, clove and mint essential oils, respectively. Cinnamon essential oil had the highest antimicrobial activity, especially against the starter culture, interfering with lactic acid production. Although viable cell counts of L. rhamnosus were lower following treatment with all 3 essential oils, relative to controls, these results were not statistically significant; in addition, cell counts remained greater than the minimum count of 10(8)CFU/mL required for a product to be considered a probiotic. Thus, although use of cinnamon essential oil in yogurt makes starter culture fermentation unfeasible, it does not prevent the application of L. rhamnosus to probiotic fermented milk. Furthermore, clove and mint essential oil caused sublethal stress to L. rhamnosus. PMID:24031939

Moritz, Cristiane Mengue Feniman; Rall, Vera Lúcia Mores; Saeki, Margarida Júri; Júnior, Ary Fernandes

2012-06-01

128

Inhibitory effect of essential oils against Lactobacillus rhamnosus and starter culture in fermented milk during its shelf-life period  

PubMed Central

The use of essential oils in foods has attracted great interest, due to their antagonistic action against pathogenic microorganisms. However, this action is undesirable for probiotic foods, as products containing Lactobacillus rhamnosus. The aim of the present study was to measure the sensitivity profile of L. rhamnosus and a yogurt starter culture in fermented milk, upon addition of increasing concentrations of cinnamon, clove and mint essential oils. Essential oils were prepared by steam distillation, and chemically characterised by gas chromatography-mass spectrometry (GC-MS) and determination of density. Survival curves were obtained from counts of L. rhamnosus and the starter culture (alone and in combination), upon addition of 0.04% essential oils. In parallel, titratable acidity was monitored over 28 experimental days. Minimum inhibitory concentration values, obtained using the microdilution method in Brain Heart Infusion medium, were 0.025, 0.2 and 0.4% for cinnamon, clove and mint essential oils, respectively. Cinnamon essential oil had the highest antimicrobial activity, especially against the starter culture, interfering with lactic acid production. Although viable cell counts of L. rhamnosus were lower following treatment with all 3 essential oils, relative to controls, these results were not statistically significant; in addition, cell counts remained greater than the minimum count of 108CFU/mL required for a product to be considered a probiotic. Thus, although use of cinnamon essential oil in yogurt makes starter culture fermentation unfeasible, it does not prevent the application of L. rhamnosus to probiotic fermented milk. Furthermore, clove and mint essential oil caused sublethal stress to L. rhamnosus.

Moritz, Cristiane Mengue Feniman; Rall, Vera Lucia Mores; Saeki, Margarida Juri; Junior, Ary Fernandes

2012-01-01

129

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

130

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

131

42 CFR 137.136 - What happens if the agency takes no action within the 45 day review period (or any extensions...  

Code of Federal Regulations, 2010 CFR

... What happens if the agency takes no action within...review period (or any extensions thereof)? 137.136... What happens if the agency takes no action within...review period (or any extensions thereof)? The...

2009-10-01

132

42 CFR 137.136 - What happens if the agency takes no action within the 45 day review period (or any extensions...  

Code of Federal Regulations, 2010 CFR

... What happens if the agency takes no action within...review period (or any extensions thereof)? 137.136... What happens if the agency takes no action within...review period (or any extensions thereof)? The...

2010-10-01

133

St. Patrick's Day Activity  

NSDL National Science Digital Library

Utah State 4th Grade Social Studies Core Standard 4: Objective 1- Demonstrate cultural understanding, by showing appreciation for the uniqueness of other cultures, identifying the contributions of various cultures in Utah, and demontrating respect for cultural differences. ~In groups of 6-7 students, search the link provided on your specific topic (Kwanzaa, St. Patrick's Day, or Pioneer Day). KWANZAA: http://holidays.kaboose.com/kwanzaa-index.html ST. PATRICKS DAY: http://www.lilesnet.com/St_Patricks/stpaddy.htm PIONEER DAY: http://heritage.uen.org/ ~Each group member is to present a part of their holiday presentation to the class. You will receive ...

Missnguyen

2012-02-13

134

The Influence of Rearing Light Period and the Use of Broiler or Broiler Breeder Diets on Forty-Two-Day Body Weight, Fleshing, and Flock Uniformity in Broiler Stocks  

Microsoft Academic Search

SUMMARY Feed restriction programs for rearing broiler breeders begin with a period of ad libitum feeding and long day lengths. It is not clear how much early growth rate is limited by light period or nutrient density. This trial was performed to determine the response of full-fed broiler males and females to 4-, 8-, 12-, or 16-h durations of light

A. M. Griffin; R. A. Renema; F. E. Robinson; M. J. Zuidhof

135

Experimental biological life support system. II. Gas exchange between man and microalgae culture in a 30-day experiment.  

PubMed

The experiments of a prolonged stay by man in a closed atmosphere regenerated by a biological method have been examined. In the course of the experiment, a study of isolated and compatible links of a gas-closed system of "man-microalga" was carried out. The main emphasis was placed on the study of the biological compatibility of the links of the system and primarily of the effect of gaseous metabolites built up in the system of man. The dynamics of a number of physiological parameters of the man under experiment were studied. The regular functional tests of the respiratory and cardiovascular system were carried out. An electrocardiogram was made and respiratory rate and pulse were registered. Oxyhemogram investigations and laboratory clinical examinations were also performed, as well as some psychological tests. It was possible to equalize the respiratory gas ratio by the composition of the cultural environment for algae and by the nutrition ration of man. This eliminates time limit for the life maintenance system, especially on microalga photosynthesis. The results of the experiments permit drawing a conclusion on the biological compatibility of man and microalgae in their prolonged direct gas contact. Thus the possibility of obtaining a balanced atmosphere regeneration system on the basis of counterbalanced gas exchange between man and controlled photosynthesis of algae has been proven experimentally. PMID:11982027

Kirensky, L V; Terskov, I A; Gitelson, I I; Lisovsky, G M; Kovrov, B G; Okladnikov, Y N

1968-01-01

136

41 CFR 302-6.107 - What effect do partial days of temporary quarters occupancy have on my authorized period for...  

Code of Federal Regulations, 2011 CFR

...period for claiming actual TQSE reimbursement? 302-6.107 Section 302-6.107 Public Contracts and Property Management Federal...ALLOWANCES FOR SUBSISTENCE AND TRANSPORTATION EXPENSES 6-ALLOWANCE FOR TEMPORARY QUARTERS SUBSISTENCE...

2011-07-01

137

Stature loss and recovery following a period of loading: Effect of time of day and presence or absence of low back pain  

Microsoft Academic Search

BackgroundStature reductions in asymptomatic individuals, caused by a set load, are lower later in the day when stature is in the trough of diurnal variation; hence most stature reduction investigations are conducted in the morning. Recent evidence suggests that it is not the reductions in stature, but the recovery of stature, that is of greatest importance. The aim of this

E. L. Healey; A. M. Burden; I. M. McEwan; N. E. Fowler

2008-01-01

138

SCPP (Sierra Cooperative Pilot Project) Forecasting Support for Period 1 September 1983-31 August 1984, Interim Progress Report, Volume 2 (Experimental Day Summaries).  

National Technical Information Service (NTIS)

This report is the last in a series of six interim reports under this contract. It summarizes, in 2 volumes, ETI's activity in support of the Sierra Cooperative Pilot Project for the period 1 September 1983-31 August 1984. Volume II contains time-height s...

J. O. Rhea A. W. Huggins G. L. Hemmer A. P. Kuciauskas C. J. Wilcox

1984-01-01

139

Changes in the brain and core temperatures in relation to the various arousal states in rats in the light and dark periods of the day  

Microsoft Academic Search

In rats, brain temperature (Tbr) and core temperature (Tc) were recorded in parallel with the sleep-wake activity throughout the 24-h diurnal cycle, consisting of a 12-h light (L) and a 12-h dark (D) period. In order to characterize the temperature changes associated with the arousal states in the L and the D separately, (i) the average temperatures in wakefulness (W),

F. Obál; G. Rubicsek; P. Alföldi; G. Sáry

1985-01-01

140

The day time electric field disturbances at equator and associated changes in interplanetary electric field and the ionospheric plasma density during intense magnetic storm periods  

NASA Astrophysics Data System (ADS)

During periods of enhanced geomagnetic activity, the low latitude ionospheric plasma densities, electric fields and currents undergo strong perturbations. The direct penetration of the high latitude electric field to lower latitudes, and the disturbance dynamo, both play a significant role in restructuring the storm time equatorial ionosphere and thermosphere. Variations of the H component of the geomagnetic field at equator and at low latitude stations are investigated to show the counter electrojet (CEJ) events are associated with electric fields from Field aligned currents (FAC). It is well known that FAC are controlled by the interplanetary magnetic fields (IMF) and electric fields from the FAC can direct penetrate to equatorial ionosphere. Thus, the penetrated electric field plays a crucial part in the development of geomagnetic disturbances and ionospheric plasma motion in the low latitude and in the inner magnetosphere. The effect of space weather related perturbations in electric fields and currents in the equatorial and low latitude magnetic field associated with the changes in magnetospheric convection can be investigated using simultaneous observations from ground geomagnetic data and ionospheric data and satellite data during the intense magnetic storm periods. Equatorial magnetic field variations and counter electrojet events will be examined for magnetically disturbed periods in association with changes in interplanetary magnetic field and auroral electric fields.

Bhaskara, Veenadhari; Alex, S.; Singh, R.

141

Skin regenerated from cultured epithelial autografts on full-thickness burn wounds from 6 days to 5 years after grafting. A light, electron microscopic and immunohistochemical study.  

PubMed

Regeneration of skin from cultured keratinocyte autografts used in the treatment of full-thickness burn wounds was studied in 21 pediatric patients from 6 days to 5 years after grafting. Findings were compared both to controls of age- and site-matched normal skin and to controls for epithelial wound-healing, re-epithelialized interstices of meshed split-thickness skin grafts of comparable postgrafting age. Six days after transplantation, a mildly hypertrophic, flat epidermis with all normal strata had regenerated, and the process of de novo dermal-epidermal junction formation had begun. Hemidesmosomes, basal lamina, and anchoring fibrils reformed conjointly in punctate fashion along the attachment face of the grafts. Within 3 to 4 weeks, the dermal-epidermal junction was complete, but full maturation of anchoring fibrils required more than a year. The process was comparable to that observed in meshed graft interstices. Rete ridges regenerated from 6 weeks to 1 year after grafting. The subjacent connective tissue initially healed to form normal scar, but it remodeled dramatically, regenerated elastin, and resembled a true dermis within 4 to 5 years. Meshed-graft interstice controls showed no rete ridge regeneration, subepithelial connective tissue remodeling, or elastin production up to 5 years after grafting. Langerhans cells repopulated grafts within 1 week, and normal population densities were reached within 2 to 6 months. After 1 year, Langerhans cell densities were increased compared with normal skin but were lower than those in age-matched meshed graft controls. Melanocytes were present in cultures at the time of transplantation, but functional epidermal melanin units were not seen in groin- or axilla-derived grafts for 6 to 8 weeks or in sole-derived epidermis until a year or more after transplantation. Normal histologic features were maintained for years after grafting. Transitory pathologic changes including parakeratosis, dyskeratosis, and intraepithelial friction blister formation were infrequently observed. No dysplastic or premalignant changes were seen. PMID:2469857

Compton, C C; Gill, J M; Bradford, D A; Regauer, S; Gallico, G G; O'Connor, N E

1989-05-01

142

Effect of dark exposure in the middle of the day on Period1, Period2, and arylalkylamine N-acetyltransferase mRNA levels in the rat suprachiasmatic nucleus and pineal gland  

Microsoft Academic Search

The suprachiasmatic nucleus (SCN) of the mammalian hypothalamus contains a central circadian pacemaker, which adjusts circadian rhythms within the body to environmental light–dark cycles. It has been shown that dark exposure in the day causes phase shifts in circadian rhythms, but it does not induce changes in the melatonin levels in the pineal gland. In this study, we examined the

Chiaki Fukuhara

2004-01-01

143

Studies on orthocephalization. 8. Behaviour of the visceral part of the rat head in the period between 7 and 60 days after gestation.  

PubMed

The present paper considers the significance of interosseous flexions of the palatal complex in the process of orthocephalization of the rat skull between 7 and 60 d after birth. The study is based on a sample of 25 female rats who have been X-rayed at 7, 14, 30, and 60 d with subsequent analysis of the photographs obtained. During this period the constituents of the bony palate, i.e. the palatine bone, the palatal process of maxilla and the palatal part of premaxilla grow steadily but with decreasing rate of increase with age. The premaxilla grows the most, while the palatal bone grows the least. The angle between the cranial base and the palatal plane decreases, i.e. the rat skull becomes more orthocranial with age. At the same time, the palate becomes more orthopalatal, primarily by an increase in the angle between the palatine bone and maxilla. As the angle between the cranial base and the palatine bone after 14 d increases, i.e. rotates in the opposite direction of the palatal plane, it may be concluded that the process of orthocephalization in this period is caused by the deflexion of the angle between the palatine bone and maxilla, while it before 14 d is caused by a combination of an interosseous deflexion in the palate and an upwards rotation of the palatine bone relative to the cranial base. PMID:4043700

Vilmann, H; Moss, M L

1985-01-01

144

Polycyclic aromatic hydrocarbons and hydroxylated metabolites in the muscle tissue of Eurasian perch (Perca fluviatilis) through dietary exposure during a 56-day period.  

PubMed

Eurasian perch (Perca fluviatilis) was exposed trophically to phenanthrene, pyrene and benzo[a]pyrene. Accumulation kinetics in the muscle tissue of parent PAHs and hydroxylated metabolites were established for 56 days at 3 levels of exposure (0, 100 and 500 ?g/kg BW). Benzo[a]pyrene and 3-hydroxy-benzo[a]pyrene were not detected in the muscles. During exposure, there was an increase in phenanthrene, pyrene and their hydroxylated metabolites in the muscle tissue. Low transfer to muscle tissue was observed at equilibrium for phenanthrene (4.4±0.6% and 2.7±0.8%) and pyrene (1.0±0.2% and 0.33±0.09%), depending on the concentrations in the spiked feed. PMID:21546054

Lazartigues, Angélique; Thomas, Marielle; Grandclaudon, Christine; Brun-Bellut, Jean; Feidt, Cyril

2011-05-05

145

Parathyroid hormone blocks the stimulatory effect of insulin-like growth factor-I on collagen synthesis in cultured 21-day fetal rat calvariae  

SciTech Connect

We examined the interaction of parathyroid hormone (PTH) and recombinant human insulin-like growth factor I (IGF-I) on collagen synthesis in 21-day fetal rat calvariae as assessed by measuring the incorporation of ({sup 3}H)proline into collagenase-digestible protein. After 96 hours of culture, 10 nM PTH antagonized the stimulation of collagen synthesis and partially blocked the increase in dry weight produced by 10 nM IGF-I. The effect of PTH to block IGF-I stimulated collagen synthesis was observed in the central bone of calvariae and was mimicked by forskolin and phorbol 12-myristate 13-acetate, but not by 1,25-dihydroxyvitamin D3, transforming growth factor-alpha or dexamethasone. Our data are consistent with the concept that the direct effect of PTH is to inhibit basal CDP labeling and fully oppose IGF-I stimulated CDP labeling. The finding that this effect of PTH is mimicked by forskolin and PMA suggests that this block in IGF-I stimulation of CDP labeling involves both cAMP and protein kinase C mediated pathways.

Kream, B.E.; Petersen, D.N.; Raisz, L.G. (Univ. of Connecticut Health Center, Farmington (USA))

1990-01-01

146

Earth Day  

NSDL National Science Digital Library

On April 22, 2005, people around the world will celebrate the 35th anniversary of Earth Day. This Topic in Depth focuses on the past and present of this significant day. From the Wisconsin Historical Society, the first two sites contain historical documents pertaining to Earth Day. The first (1) document features a May 1970 issue of The Gaylord Nelson Newsletter reporting on the first Earth Day. The second (2) document is a speech by Nelson entitled "An Environmental Agenda for the 70's." Housed in the archives of the US Environmental Protection Agency (EPA) website, the next two sites also contain historical documents. The first (3) site contains an article written by Nelson for the EPA Journal in April of 1980, entitled "Earth Day '70: What It Meant." The second (4) site contains an article written by John C. Whitaker (former Interior undersecretary in the Nixon administration) for the EPA Journal in the summer of 1998. The article is entitled "Earth Day Recollections: What It Was Like When the Movement Took Off." The (5) Earth Day Network (first mentioned in the April 4, 2003, Scout Report for Life Sciences) works "to broaden the environmental movement worldwide and to educate and mobilize people, governments, and corporations to take responsibility for a clean and healthy environment." In addition to information sections about Ongoing Programs, Current Campaigns, and News, the Earth Day Network website contains Earth Day 2005 Materials for organizers. From EarthDay.gov, Take Action In Your Classroom (6) offers links to a variety of environmental education resources. The next website, from the U.S. Army Environmental Center, presents (7) Army Earth Day; and links to information about the Army's environmental activities. The final (8) site is an Earth Day-inspired educational website (first reported on in the April 14, 1999 Scout Report for Science & Engineering) from the Wilderness Society. The site offers a collection of environmental education resources for teachers and students. [NL

147

Producing biodiesel from cotton seed oil using Rhizopus oryzae ATTC #34612 whole cell biocatalysts: Culture media and cultivation period optimization  

Technology Transfer Automated Retrieval System (TEKTRAN)

The effect of culture medium composition and cultivation time on biodiesel production by Rhizopus oryzae ATCC #34612 whole cell catalysts, immobilized on novel rigid polyethylene biomass supports, was investigated. Supplementation of the medium with carbon sources led to higher lipase activity and i...

148

Space Day  

NSDL National Science Digital Library

Space Day '98, to be held on May 21, 1998, celebrates and honors the people who have made space exploration possible. The highlight of the Space Day homepage, maintained by Lockheed Martin Corporation, will be a live interactive webcast all day on May 21. Features of the webcast include experts in the fields of space discussing issues ranging from global collaboration to mysteries that remain. In addition to the webcast, the Space Day '98 home page provides resources for teachers and the curious alike. Mission: Fun allows visitors to test their space knowledge through interactive Shockwave games and quizzes while Teachers' Space provides educators with downloadable lesson plans (Adobe Acrobat [.pdf] format).

149

Dinosaur Day!  

ERIC Educational Resources Information Center

|In this article, the authors describe how they capitalized on their first-grade students' love of dinosaurs by hosting a fun-filled Dinosaur Day in their classroom. On Dinosaur Day, students rotated through four dinosaur-related learning stations that integrated science content with art, language arts, math, and history in a fun and…

Nakamura, Sandra; Baptiste, H. Prentice

2006-01-01

150

Culture of chondrocytes in alginate surrounded by fibrin gel: characteristics of the cells over a period of eight weeks  

Microsoft Academic Search

OBJECTIVETo produce tissue engineered cartilage by human articular chondrocytes in vitro for further use in in vivo manipulations for the treatment of cartilage defects.METHODSHuman articular chondrocytes were cultured in 0.5%, 1.0%, and 2.0% of alginate for up to four weeks. The optimal concentration of an alginate matrix for cell replication and for aggrecan synthesis by chondrocytes was determined. DNA content

K F Almqvist; L Wang; J Wang; D Baeten; M Cornelissen; R Verdonk; E M Veys; G Verbruggen

2001-01-01

151

Dose- and time-dependent effects of a novel (-)-hydroxycitric acid extract on body weight, hepatic and testicular lipid peroxidation, DNA fragmentation and histopathological data over a period of 90 days.  

PubMed

(-)-Hydroxycitric acid (HCA), a natural extract from the dried fruit rind of Garcinia cambogia (family Guttiferae), is a popular supplement for weight management. The dried fruit rind has been used for centuries as a condiment in Southeastern Asia to make food more filling and satisfying. A significant number of studies highlight the efficacy of Super CitriMax (HCA-SX, a novel 60% calcium-potassium salt of HCA derived from Garcinia cambogia) in weight management. These studies also demonstrate that HCA-SX promotes fat oxidation, inhibits ATP-citrate lyase (a building block for fat synthesis), and lowers the level of leptin in obese subjects. Acute oral, acute dermal, primary dermal irritation and primary eye irritation toxicity studies have demonstrated the safety of HCA-SX. However, no long-term safety of HCA-SX or any other (-)-hydroxycitric acid extract has been previously assessed. In this study, we have evaluated the dose- and time-dependent effects of HCA-SX in Sprague-Dawley rats on body weight, hepatic and testicular lipid peroxidation, DNA fragmentation, liver and testis weight, expressed as such and as a % of body weight and brain weight, and histopathological changes over a period of 90 days. The animals were treated with 0, 0.2, 2.0 and 5.0% HCA-SX as feed intake and the animals were sacrificed on 30, 60 or 90 days of treatment. The feed and water intake were assessed and correlated with the reduction in body weight. HCA-SX supplementation demonstrated a reduction in body weight in both male and female rats over a period of 90 days as compared to the corresponding control animals. An advancing age-induced marginal increase in hepatic lipid peroxidation was observed in both male and female rats as compared to the corresponding control animals. However, no such difference in hepatic DNA fragmentation and testicular lipid peroxidation and DNA fragmentation was observed. Furthermore, liver and testis weight, expressed as such and as a percentage of body weight and brain weight, at 30, 60 and 90 days of treatment, exhibited no significant difference between the four groups. Taken together, these results indicate that treatment of HCA-SX over a period of 90 days results in a reduction in body weight, but did not cause any changes in hepatic and testicular lipid peroxidation, DNA fragmentation, or histopathological changes. PMID:14674714

Shara, Michael; Ohia, Sunny E; Yasmin, Taharat; Zardetto-Smith, Andrea; Kincaid, Anthony; Bagchi, Manashi; Chatterjee, Archana; Bagchi, Debasis; Stohs, Sidney J

2003-12-01

152

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

153

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

154

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.

155

Physico-chemical properties of a novel (-)-hydroxycitric acid extract and its effect on body weight, selected organ weights, hepatic lipid peroxidation and DNA fragmentation, hematology and clinical chemistry, and histopathological changes over a period of 90 days.  

PubMed

Garcinia cambogia-derived (-)-hydroxycitric acid (HCA) is a popular and natural supplement for weight management. HCA is a competitive inhibitor of the enzyme ATP citrate lyase, which catalyzes the conversion of citrate and coenzyme A to oxaloacetate and acetyl coenzyme A (acetyl CoA) in the cytosol. Acetyl CoA is used in the synthesis of fatty acids, cholesterol and triglycerides, and in the synthesis of acetylcholine in the central nervous system. Studies have demonstrated the efficacy of a novel 60% calcium-potassium salt of HCA derived from Garcinia cambogia (HCA-SX, Super CitriMax) in weight management. Results have shown that HCA-SX promotes fat oxidation, enhances serotonin release and availability in the brain cortex, normalizes lipid profiles, and lowers serum leptin levels in obese subjects. Acute oral, acute dermal, primary dermal irritation and primary eye irritation toxicity, as well as Ames bacterial reverse mutation studies and mouse lymphoma tests have demonstrated the safety of HCA-SX. However, no detailed long-term safety of HCA-SX or any other HCA extract has been previously assessed. We evaluated the dose- and time-dependent effects of HCA-SX in Sprague-Dawley rats on body weight, selected organ weights, hepatic lipid peroxidation and DNA fragmentation, hematology and clinical chemistry over a period of 90 days. Furthermore, a 90-day histopathological evaluation was conducted. The animals were treated with 0, 0.2, 2.0 and 5.0% HCA-SX of feed intake and were sacrificed on 30, 60 or 90 days of treatment. The body weight and selected organ weights were assessed and correlated as a % of body weight and brain weight at 90 days of treatment. A significant reduction in body weight was observed in treated rats as compared to control animals. An advancing age-induced marginal increase in hepatic lipid peroxidation was observed in both male and female rats, while no such difference in hepatic DNA fragmentation was observed as compared to the control animals. Furthermore, selected organ weights individually and as a % of body weight and brain weight at 90 days of treatment exhibited no significant difference between the groups. No difference was observed in hematology and clinical chemistry or the histopathological evaluation. Taken together, these results show that 90 day treatment of HCA-SX results in a reduction in body weight, and does not cause any changes in major organs or in hematology, clinical chemistry, and histopathology. PMID:15228099

Shara, Michael; Ohia, Sunny E; Schmidt, Robert E; Yasmin, Taharat; Zardetto-Smith, Andrea; Kincaid, Anthony; Bagchi, Manashi; Chatterjee, Archana; Bagchi, Debasis; Stohs, Sidney J

2004-05-01

156

"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

157

Drought, epidemic disease, and the fall of classic period cultures in Mesoamerica (AD 750-950). Hemorrhagic fevers as a cause of massive population loss.  

PubMed

The classical period in Mexico (AD 250-750) was an era of splendor. The city of Teotihuacan was one of the largest and most sophisticated human conglomerates of the pre-industrial world. The Mayan civilization in southeastern Mexico and the Yucatan peninsula reached an impressive degree of development at the same time. This time of prosperity came to an end during the Terminal Classic Period (AD 750-950) a time of massive population loss throughout Mesoamerica. A second episode of massive depopulation in the same area was experienced during the sixteenth century when, in less than one century, between 80% and 90% of the entire indigenous population was lost. The 16th century depopulation of Mexico constitutes one of the worst demographic catastrophes in human history. Although newly imported European and African diseases caused high mortality among the native population, the major 16th century population losses were caused by a series of epidemics of a hemorrhagic fever called Cocoliztli, a highly lethal disease unknown to both Aztec and European physicians during the colonial era. The cocoliztli epidemics occurred during the 16th century megadrought, when severe drought extended at times from central Mexico to the boreal forest of Canada, and from the Pacific to the Atlantic coast. The collapse of the cultures of the Classic Period seems also to have occurred during a time of severe drought. Tree ring and lake sediment records indicate that some of the most severe and prolonged droughts to impact North America-Mesoamerica in the past 1000-4000 years occurred between AD 650 and 1000, particularly during the 8th and 9th centuries, a period of time that coincides with the Terminal Classic Period. Based on the similarities of the climatic (severe drought) and demographic (massive population loss) events in Mesoamerica during the sixteenth century, we propose that drought-associated epidemics of hemorrhagic fever may have contributed to the massive population loss during the Terminal Classic Period. PMID:15922121

Acuna-Soto, Rodolfo; Stahle, David W; Therrell, Matthew D; Gomez Chavez, Sergio; Cleaveland, Malcolm K

2005-01-01

158

Silicon cell culture templates with nanotopography: periodic nanostructures and random nanoporous topologies generated by high-repetition rate sub-15 fs pulsed near-infrared laser light  

NASA Astrophysics Data System (ADS)

In recent years a variety of studies has demonstrated that artificially generated microenvironments can exert a strong influence on cell growth, cell adhesion, proliferation, and differentiation behavior in the culture dish. In particular, cells tend to adapt themselves to elongated micro- and nanostructures. Thus, nanostructured substrates are of significant interest in the biological and biomedical sciences as adhesion and development of cells can be controlled via the topological surface properties. In contrast to earlier approaches relying on electron beam or nanoimprint lithography, nanostructures were produced on Si(100) surfaces using sub-15 femtosecond high-resolution laser scanning microscopy. Laser processing was performed with the silicon surface immersed in water followed by hydrofluoric acid etching in order to remove silicon oxide residues. Ripples of at a periodicity of 150 nm as well as random nanoporous surface arrangements were generated by Ti:Sapphire laser light of centre wavelength 800 nm (bandwidth 120 nm, repetition rate 85 MHz) at picojoule pulse energies. Growth of Chinese hamster ovary (CHO) cells revealed good adhesion to the silicon substrates. Importantly, alignment of cells along the direction of ripples was observed, whereas randomly nanoporous surfaces did not induce any preferences in cell orientation.

Straub, Martin; Uchugonova, Aisada; Koch, Marcus; König, Karsten

2012-02-01

159

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

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; Breitschwerdt, Edward B

2013-03-13

160

Number of stromal precursors in mouse bone marrow and expression of cytokine genes in primary cultures of mouse bone marrow cells during various periods after immunization with S. typhimurium antigens.  

PubMed

Administration of S. typhimurium microbial mass to mice was followed by a significant increase (by 3-4 times) in the efficiency of cloning and number of stromal precursors in the femoral bone marrow. These parameters were maximum on days 1-3, but returned to normal by the 8th-15th day after immunization. As differentiated from intact animals, the expression of genes for proinflammatory cytokines IL-1? (day 1 after immunization), IL-6 (days 1-3), TNF-? (days 1, 3, and 6), and IFN-? (days 1-3) was detected in bone marrow cultures from immunized mice. The expression of genes for IFN-?, IL-18, and IFN-? was decreased on days 1, 3, and 6 after immunization of animals, respectively. Gene expression for the anti-inflammatory cytokine IL-4 was observed on day 6 after immunization. Therefore, this system was not characterized by a decrease in the immune response of stromal cells. The stromal component of hemopoietic and lymphoid organs has the vector of influences in response to bacterial antigens. This vector is directed to the stimulation and progression, but not to the suppression of immune reactions. Our results indicate that resident stromal cells play a role in the immune response of the body. PMID:21234434

Gorskaya, U F; Danilova, T A; Mesentzeva, M V; Shapoval, I M; Narovlyansky, A N; Nesterenko, V G

2010-10-01

161

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

162

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.

163

Osteocalcin, a marker of differentiated function during calcification of cultured chick osteoblasts  

SciTech Connect

The expression of differentiated function was examined in cultured osteoblasts isolated from 17-day embryonic chicken calvarie. Cell cultures grown in the absence (control) or presence of 10 mM ..beta..-Glycerol Phosphate (..beta..GP) (stimulus for calcification) were analyzed at 6-day intervals over a 30-day period for total mineral, alkaline phosphatase (AP) activity, osteocalcin levels and collagen. AP was first detected in both cultures between days 6 and 9 when cells became crowded. Control cultures maintained high levels of enzyme activity (30-50 fold) while ..beta.. GPO/sub 4/ culture activity declined after day 18 when extensive mineralization occurred. Osteocalcin, the vitamin K-dependent, bone-specific, calcium-binding protein showed a similar pattern of induction as AP with at 50-100-fold increase in both cultures. Collagen accumulated through out the 30-day experimental period for both ..beta.. GPO/sub 4/ and control cultures while collagen synthesis (/sup 3/H-proline pulse) peaked at day 15 in culture. These results suggest that with time in culture, osteoblast differentiation may be occurring. The increased mineralization of ..beta.. GPO/sub 4/ cultures appeared to down regulate the enzyme activity of AP in comparison to control culture, while osteocalcin synthesis was enhanced. In conclusion, the chick osteoblast system offers a model to study bone cell differentiation, protein synthesis and matrix calcification.

Lian, J.; Chipman, S.; Glowacki, J.; Gerstenfeld, L.

1986-05-01

164

Enhanced recovery of Phytophthora ramorum from soil following 30 days storage at 4C  

Technology Transfer Automated Retrieval System (TEKTRAN)

Chlamydospores of Phytophthora ramorum produced by mixing 20 percent V8 juice broth cultures with sand and incubating over a 30 day period were used to infest field soil at densities ranging from 0.2 to 42 chlamydospores per cubic centimeter of soil. Chlamydospore recovery was determined by baiting...

165

Response of mixed-age cultures of phosphine-resistant and susceptible strains of lesser grain borer, Rhyzopertha dominica, to phosphine at a range of concentrations and exposure periods  

Microsoft Academic Search

Mixed-age cultures, containing all life stages, of a highly resistant strain (Strong-R) of lesser grain borer, Rhyzopertha dominica (F.), were exposed to a series of fixed concentrations of phosphine at a range of exposure periods at 25°C. A susceptible strain and a less-resistant strain (Weak-R) were also tested. The aim was to characterise the resistant strain and determine if it

Patrick J. Collins; Gregory J. Daglish; Hervoika Pavic; Rosemary A. Kopittke

2005-01-01

166

Adult Day Care  

MedlinePLUS

... Text Printer Friendly Download Reader Online Chat Adult Day Care What is Adult Day Care? How Do ... Learn More About Local Services? What is Adult Day Care? Adult Day Care Centers are designed to ...

167

Characteristics of Bacterial Biofilms during Long-Term Culturing.  

PubMed

We studied properties of bacterial biofilms during long-term culturing. The biofilms were preserved for more than 90 days under the chosen conditions. At the same time, amounts of matrix and cells underwent periodic changes. The biomass of the biofilms decreased approximately every 7 days and then returned to the previous values. PMID:24143370

Tetz, G V; Artemenko, N K; Zaslavskaya, N V; Tetz, V V

2013-07-01

168

Schoolwide Literacy Days.  

ERIC Educational Resources Information Center

Describes 10 "literacy day" activities that one California elementary school has used successfully schoolwide, typically one such day per month, to make reading fun and purposeful, while developing a sense of community. Includes: spread-a-quilt day; teacher exchange day; turn off the TV; Dr. Seuss day; community readers; schoolwide poets; original…

Polder, Darlene D.

2000-01-01

169

Alexandrea in Aegypto. The role of the Egyptian tradition in the Hellenistic and Roman periods: ideology, culture, identity, and public life  

Microsoft Academic Search

Alexandria, the capital of Egypt during the Hellenistic and Roman periods is often hailed as the ancient cosmopolitan center of Mediterranean par excellence. Since the foundation of the city by Alexander the Great in 331 BC, several traditions- along with their representatives, mainly Greek and Egyptian- coexisted and interacted with each other, resulting in a multiculturalism in Alexandrian society. However,

Kyriakos Savvopoulos

2011-01-01

170

First Day of Class  

NSDL National Science Digital Library

Compiled by Carol Ormand, SERC, Carleton College Check out a set of videos of what faculty in several disciplines do on their first day of class. Why is the first day important? It's the first day of class, ...

171

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 ...

172

Prevalence of drug resistance and culture-positive rate among microorganisms isolated from patients with ocular infections over a 4-year period  

PubMed Central

Purpose To investigate the microbial isolates from patients with ocular infections and the trend in the emergence of levofloxacin-resistant strains over the past four years from 2006 to 2009 retrospectively. Patients and methods The subjects were 242 patients with ocular infections or traumas treated in our hospital including outpatients, inpatients, and emergency room patients. Most of them needed urgent care presenting with eye complaints, traumas, or decreased vision. Clinical samples were obtained from discharges, corneal, conjunctival tissues or vitreous fluid or aqueous humor, and cultured. Items for assessment included the patient’s age, the diagnosis, the prevalence of isolated bacteria, and the results of susceptibility tests for levofloxacin (LVFX) cefamezin (CEZ), gentamicin (GM) and vancomycin. This information was obtained from the patients’ medical records. Results There were 156 male patients and 86 female patients who were aged from 2 months old to 94 years old and mean age was 56.8 ± 24.2 years. Of the 242 patients, 78 (32.2%) had positive cultures. The culture-positive rate was significantly higher in male patients than female in total (P = 0.002) and in patients with corneal perforation (P = 0.005). Corneal perforation was the highest culture-positive rate (60.0%), followed by orbital cellulitis (56.5%), blepharitis (50.0%), dacryoadenitis (45.5%), conjunctivitis (38.2%), infectious corneal ulcer (28.5%) and endophthalmitis (24.7%). LVFX-resistant strains accounted for 40 out of a total of 122 strains (32.8%), and the minimum inhibitory concentration (MIC) was significantly higher in LVFX and GM compared with the other antibiotics. There were no vancomycin-resistant strains. Conclusion Attention should be paid to a possible future increase of strains with resistance to LVFX, as commonly prescribed ocular antibiotics bring emergence of resistant bacteria. Although no vancomycin-resistant strains were isolated this drug should be reserved as the last resort, in order to prevent the emergence of vancomycin resistance.

Shimizu, Yusuke; Toshida, Hiroshi; Honda, Rio; Matsui, Asaki; Ohta, Toshihiko; Asada, Yousuke; Murakami, Akira

2013-01-01

173

Walls of Time: The "Walk through Time" Was Inspired by How Artists of Various Time Periods and Cultures Have Decorated Walls  

ERIC Educational Resources Information Center

|Last year, a school embarked on a school-wide project that would take all of their students, kindergarten through-sixth grade, through a tangible art timeline. The result was a passageway--over seventy-five feet in length--that revealed the history of art, from cave painting to modern-day graffiti art. The "walk through time" was inspired by how…

Komrska, Shelley; Rupe, Melissa

2005-01-01

174

Walls of Time: The "Walk through Time" Was Inspired by How Artists of Various Time Periods and Cultures Have Decorated Walls  

ERIC Educational Resources Information Center

Last year, a school embarked on a school-wide project that would take all of their students, kindergarten through-sixth grade, through a tangible art timeline. The result was a passageway--over seventy-five feet in length--that revealed the history of art, from cave painting to modern-day graffiti art. The "walk through time" was inspired by how…

Komrska, Shelley; Rupe, Melissa

2005-01-01

175

Bone formation by osteoblast-like cells in a three-dimensional cell culture  

Microsoft Academic Search

Summary  Cells of the clonal osteogenic cell line MC3T3-E1 were seeded onto a three-dimensional matrix of denatured collagen type 1\\u000a and cultured for a period of up to 8 weeks. Specimens were analyzed by histological, enzyme histochemical, immunocytochemical,\\u000a and ultrastructural methods and byin situ hybridization between day 7 and day 56 after seeding. In 56-day cultures, the MC3T3-E1 cells were arranged

M. Casser-Bette; A. B. Murray; E. I. Closs; V. Erfle; J. Schmidt

1990-01-01

176

Night and day morphologies in a planktonic dinoflagellate.  

PubMed

We describe remarkable diurnal changes in the morphology of the planktonic dinoflagellate Ceratium ranipes. The species is distinguished by the unusual appendages, known as toes or fingers, protruding from its horns. Varieties have been described based on the characteristics of the fingers. We discovered that cultures, maintained on a 12:12 photoperiod, when examined during the dark period were composed of 'finger-less' cells. Monitoring of isolated cells revealed a diurnal cycle of distinct changes in morphology with daytime cells showing appendages, well-stocked with chlorophyll, and the absence of the fingers at the end of the photoperiod. Fingers are absorbed at the end of the light period and re-grown at the end of the dark period. Sampling the Bay of Villefranche, we found the distinct morphologies in a natural population at night and during the day. PMID:19577958

Pizay, Marie-Dominique; Lemée, Rodolphe; Simon, Natalie; Cras, Anne-Lise; Laugier, Jean-Pierre; Dolan, John R

2009-07-04

177

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

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

Connelly, Cynthia D; Hazen, Andrea L; Baker-Ericzén, Mary J; Landsverk, John; Horwitz, Sarah McCue

2013-08-09

178

FDA Extends Public Comment Period 60 Days for Proposed ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... for Importers of Food for Humans and Animals and the Accreditation of Third-Party Auditors/Certification Bodies to Conduct Food Safety Audits and ... More results from www.fda.gov/food/newsevents/constituentupdates

179

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

180

47 CFR 73.1700 - Broadcast day.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Broadcast day. 73.1700 Section 73.1700 Telecommunication...to All Broadcast Stations § 73.1700 Broadcast day. The term broadcast day means that period of time between the...

2012-10-01

181

47 CFR 73.1700 - Broadcast day.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Broadcast day. 73.1700 Section 73.1700 Telecommunication...to All Broadcast Stations § 73.1700 Broadcast day. The term broadcast day means that period of time between the...

2011-10-01

182

Analysis of the Effect of Historical Cultural Changes Relative to the Development of Affordability Excursions to Existing Parametric Cost Models.  

National Technical Information Service (NTIS)

This report searches pertinent historical corridors for clues to the effects of historical cultural changes on present day knowledge worker productivity. The search is chronologic and divided into six periods: Historic Era; Pre-industrialization Era; Indu...

1988-01-01

183

Two-stage cultures for the production of astaxanthin from Haematococcus pluvialis.  

PubMed

A two-stage culture system was established for the production of astaxanthin from Haematococcus pluvialis. In a first stage green vegetative cells were produced in semicontinuous cultures maintained with daily renewal rates between 10 and 40%. The steady-state cell density decreased with increasing renewal rates. Highest cell productivity, 64 x 10(6) cells l(-1) day(-1) was obtained with a daily renewal rate of 20%. In a second stage the harvested cultures were submitted to high light (240 micromol photon m(-2) s(-1)) under batch conditions for 15 days in order to stimulate the transition to the aplanospore stage and the accumulation of astaxanthin. No decrease in cell density was recorded during the induction period in any of the cultures. Cultures obtained at high renewal rates continued growing during the induction period and no astaxanthin was accumulated until all nitrogen in the media had been consumed. The final concentration of astaxanthin was inversely correlated to the growth rate at which first-stage cultures were maintained. Optimal renewal rate for maximal astaxanthin production depended on the duration of the induction period. After a 12-day induction period the highest astaxanthin production, 5.8 mg l(-1) of semi-continuous culture day -1, was obtained with cultures maintained at a renewal rate of 20%. When the induction period was increased to 15 days maximal astaxanthin productivity, 9.6 mg l(-1) of semi-continuous culture day -1, was obtained from cultures maintained at a renewal rate of 40% despite the much lower astaxanthin concentration achieved in these cultures. Results demonstrate the feasibility of semi-continuous cultivation of H. pluvialis for the two-stage production of astaxanthin. PMID:11472800

Fábregas, J; Otero, A; Maseda, A; Domínguez, A

2001-07-26

184

Effects of Days Dry and Days Open on Holstein Milk Production  

Microsoft Academic Search

Holstein lactation records from the Dairy Herd Improvement test day files of the New York Dairy Records Processing Lab- oratory at Cornell University were used to study genetic and environmental relation- ships of days dry and days open with milk production. Age and month of calving significantly influenced length of dry period. Within herd heritability estimates of days dry were

L. R. Schaeffer; C. R. Henderson

1972-01-01

185

76 FR 63807 - Leif Erikson Day, 2011  

Federal Register 2010, 2011, 2012, 2013

...the promise of adventure and dreams of new discoveries. When they...celebrate the many ways Nordic-American culture has enriched our Nation...and celebrate our Nordic-American heritage, the Congress, by...Erikson Day. I call upon all Americans to observe this day with...

2011-10-13

186

Day in the Life  

MedlinePLUS

... is not particularly medical. Here's how a typical day might sound if narrated by your physician. Morning ... or maybe he wasn't really trying. The day wears on, and soon borborygmi and epigastric pain ...

187

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 ...

188

Every Day Is Mathematical  

ERIC Educational Resources Information Center

|March 14 is special because it is Pi Day. Mathematics is celebrated on that day because the date, 3-14, replicates the first three digits of pi. Pi-related songs, websites, trivia facts, and more are at the fingertips of interested teachers and students. Less celebrated, but still fairly well known, is National Metric Day, which falls on October…

Barger, Rita H.; Jarrah, Adeeb M.

2012-01-01

189

WORD. A. DAY  

NSDL National Science Digital Library

A. WORD. A. DAY. is the Web page for the mailing list A.Word A Day (AWAD), which mails out a vocabulary word and its definition (with occasional commentary) to the subscribers every day. Currently AWAD has over 10,000 subscribers in 53 countries.

190

Going Vegetarian for the Day  

Microsoft Academic Search

To determine participants’ willingness to go “meat-free” for the day, a twelve-item survey was distributed randomly at campus restaurants during meal periods. The sample consisted of over 600 students and staff. The results were analyzed using SPSS (Statistical Package for Social Sciences) statistical software. Nine percent (71% female & 29% male) claimed to be vegetarian with lacto-ovo vegetarianism the most

Laura Hartung

1999-01-01

191

Rabbit whole embryo culture.  

PubMed

Although the rabbit is used extensively in developmental toxicity testing, relatively little is known about the fundamental developmental biology of this species let alone mechanisms underlying developmental toxicity. This paucity of information about the rabbit is partly due to the historic lack of whole embryo culture (WEC) methods for the rabbit, which have only been made available fairly recently. In rabbit WEC, early somite stage embryos (gestation day 9) enclosed within an intact amnion and attached to the visceral yolk sac are dissected from maternal tissues and placed in culture for up to 48 h at approximately 37°C and are continuously exposed to an humidified gas atmosphere mixture in a rotating culture system. During this 48 h culture period, major phases of organogenesis can be studied including cardiac looping and segmentation, neural tube closure, and development of anlagen of the otic system, eyes and craniofacial structures, somites and early phases of limb development (up to bud stage), as well as expansion and closure of the visceral yolk sac around the embryo. Following completion of the culture period, embryos are evaluated based on several growth and development parameters and also are assessed for morphological abnormalities. The ability to sustain embryo development independent of the maternal system allows for exposure at precise development stages providing the opportunity study the direct action of a teratogen or one of its metabolites on the developing embryo. Rabbit WEC is perhaps most useful when used in conjunction with rodent WEC methods to investigate species-specific mechanisms of developmental toxicity. PMID:22669668

Marshall, Valerie A; Carney, Edward W

2012-01-01

192

Comparison of the developmental effects of two mercury compounds on glial cells and neurons in aggregate cultures of rat telencephalon  

Microsoft Academic Search

A three-dimensional cell culture system was used as a model to study the influence of low levels of mercury in the developing brain. Aggregating cell cultures of fetal rat telencephalon were treated for 10 days either during an early developmental period (i.e., between days 5 and 15 in vitro) or during a phase of advanced maturation (i.e., between days 25

Florianne Monnet-Tschudi; Marie-Gabrielle Zurich; Paul Honegger

1996-01-01

193

Period Cramps  

MedlinePLUS

... ago. She's learned to handle using pads and tampons, but the cramps are really bothering her. Sometimes ... THIS TOPIC Do Periods Ever End? Pads and Tampons How Do Pain Relievers Work? Five Things Girls ...

194

Periodic Pegboard  

NSDL National Science Digital Library

In this activity, learners use pegboard and straws to build a three-dimensional model of the periodic table. This model helps learners visualize trends in the chemical properties of the elements, including electronegativity, ionization energy, atomic radii, and mass.

Johnsen, Jill

2006-01-01

195

Sun-Earth Days  

Microsoft Academic Search

Sun-Earth Day is a well-coordinated series of programs, resources and events under a unique yearly theme highlighting the fundamentals of heliophysics research and missions. A menu of activities, conducted throughout the year, inspire and educate participants. Sun-Earth Day itself can vary in date, but usually is identified by a celebration on or near the spring equinox. Through the Sun-Earth Day

J. Thieman; C. Ng; E. Lewis; T. Cline

2010-01-01

196

Rainy Day Activities.  

ERIC Educational Resources Information Center

|Experienced caregivers plan ahead for rainy days. This article describes specific rainy day activities for young children, such as books and crafts to learn about rain (rain in a jar, making a rainbow), simple cooking activities (taffy pull, cinnamon candy tea), and games (mummy wrap, hunt the thimble, rain lotto). (EV)|

Texas Child Care, 1997

1997-01-01

197

For Just One Day  

ERIC Educational Resources Information Center

|This essay explores the fantasy of a mother who wonders what her son would have been like if he were not severely disabled. For just one day, she confesses, she would like to know the anticipated son who disappeared from her life the day her disabled son was born, 21 years ago. The essay provides vivid examples of challenging experiences she has…

Carter, S.

2004-01-01

198

School Building Day, 2001.  

ERIC Educational Resources Information Center

This document presents information and development materials about "School Building Day" (an event spotlighting the school facility and developing support and pride in the community's schools) to help local school districts conduct their own "School Building Day" to be held on April 20th of 2001. Included are lists of suggested activities and…

Council of Educational Facility Planners, International, Scottsdale, AZ.

199

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.

200

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 types of period changes are found: continuous changes, sudden changes, and meandering periods. On the order of 1% of Miras show evidence for period changes, but unstable periods may be common among the longest period Miras. The case of R Hya is studied in more detail, using archived data from AAVSO, AFOEV, BAAVSS, RASNZ, and VSOLJ, and historical records: we find that its period evolved from almost 500 days around its discovery (AD 1662) to about 385 days since AD 1950. The period change was accompanied by a dramatic change in its mass-loss rate. Such changes in mass-loss rates, especially for the Miras with meandering periods, could be one of the causes of the rings seen around many descendents of Mira variables, the planetary nebulae.

Zijlstra, Albert A.; Bedding, Timothy R.

201

In vitro maintenance of spermatogenesis in Xenopus laevis testis explants cultured in serum-free media  

SciTech Connect

Spermatogenesis has been maintained for extended periods in Xenopus laevis testis explants cultured in serum-free media supplemented with bovine serum albumin, insulin, transferrin, follicle-stimulating hormone, dihydrotestosterone, testosterone, retinol, ascorbate, and tocopherol. The organization of the testis fragments was maintained for 28 days, and all stages of development were present throughout the culture period. /sup 3/H-Thymidine-labeled secondary (Type B) spermatogonia developed in 28 days into spermatids at the acrosomal vesicle stage whereas labeled zygotene spermatocytes became mature spermatids in 28 days. Spermatogonial proliferation also continued in vitro for 28 days. Germ cell differentiation was not dependent upon exogenous testosterone, ascorbate, or tocopherol since /sup 3/H-labeled spermatogonia became mature spermatids in testes cultured 35 days in media lacking these supplements. Autoradiography demonstrated that 55% of the luminal sperm present in explants cultured 10 days had differentiated in vitro. Sperm from testes cultured 10-35 days were similar to sperm from freshly dissected testes with regard to motility and fecundity, and eggs fertilized with sperm from explant cultures developed normally into swimming tadpoles. The results demonstrate the feasibility of maintaining vertebrate spermatogenesis in culture and suggest that in vitro analysis of Xenopus spermatogenesis using defined media may provide important insights into the evolution of regulatory mechanisms in spermatogenesis.

Risley, M.S.; Miller, A.; Bumcrot, D.A.

1987-05-01

202

Effects of Diet and Temperature on Growth and Mortality of the Blue Crab, 'Callinectes sapidus', Maintained in a Recirculating Culture System.  

National Technical Information Service (NTIS)

Blue crab growth parameters were measured over a sixty-day period in a recirculating culture system, with each crab in physical isolation. Dependent variables were molt interval, increase in carapace width per molt, percent molt and mortality. No consista...

R. R. Winget C. E. Epifanio T. Runnels P. Austin

1976-01-01

203

Longterm cultures of sheep thyroid cells.  

PubMed

A thyroid tissue culture system has been established in which follicular morphology can be preserved for at least 30 days. The system is highly dependent on whether or not the medium supporting the cells is changed during the culture period. The high levels of TSH (40 mU/ml) normally used in thyroid culture systems enhance follicular morphology but are not a prerequisite for differentiation. In the absence of medium changes follicular morphology improves for up to 20 days after initiation of the culture. Thereafter, the cells die unless the medium is changed. If differentiation is to be preserved after 20 days the medium into which the cells are transferred must be "conditioned" by preincubation with thryoid cultures. Regular medium changes into fresh medium causes the cultures to lose their differentiated characteristics and revert to a conventional monolayer. The capacity of these cultures to trap iodide has been quantified using a new method. The method is based on comparison of the 125I--iodide retained by thyroid cells with that retained in a undifferentiated established cell line (CHO--K1). The results demonstrated that trapping can be preserved for at least 20 days in cells cultured in the presence of TSH, provided the medium is not changed; and that under appropriate conditions the cells can trap iodide even in the absence of TSH stimulation. The extent to which the above cultures proliferate is also investigated. At the relatively high innoculation of cells used in primary cultures little proliferation takes place even when the cells are stimulated by TSH. However, regular medium changed induce some growth. In the absence of medium changes the cells die after 15-20 days. Those grown in the presence of TSH live slightly longer than those grown in its absence. Subculturing thyroid cells and innoculating them at low densities in Petri dishes leads to substantial cell proliferation whether or not TSH is present. The doubling time of cells in these cultures is the order of 1 to 2 days. The population resulting from this growth exhibit both epithelial and fibroblast like morphology although the former predominates. When cells from primary thryoid cultures are reseeded at very low concentrations (approximately 10(3) cells/Petri dish) about 3-10 per cent of the population give rise to viable macroscopic clones. PMID:6996408

O'Connor, M K; Malone, J F; Cullen, M J

1980-01-01

204

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.

205

National Lab Day  

NSDL National Science Digital Library

NSF joins other partners in National Lab Day, an initiative connecting science, technology, engineering and mathematics (STEM) teachers with STEM professionals who volunteer to share their expertise--and their passion--for science and engineering with students. You can view video clips that explain the basics of what National Lab Day is and how it works, get tips from a professional educator about how to effectively help in the classroom and learn about some NSF-funded projects that already are conducting activities in the spirit of Lab Day.

206

[Vital long-term preservation of human gingiva in perfusion culture].  

PubMed

Perfusion culture offers the advantage of keeping gingiva alive for a long time as an stable explant according to cell biological parameters. To investigate the suitability of cultured human gingival explants for transplantations the biopsies were put into a newly developed perfusion chamber and cultured for at least 21 days. Gingiva explants were derived from healthy donors undergoing surgical removal of molar teeth. The tissue pieces were cultured without prior proteolytic desintegration or subculture. Immediately after excision a morphological and immunohistochemical analysis of the tissue was carried out and the distribution pattern of cytokeratin and vimentin was examined. Gingival explants cultured for 7, 14 and 21 days in serum-free keratinocyte growth medium in perfusion culture were analyzed in the same way. The morphology of the cultured explant (21 days) was well preserved from stratum basale up to stratum corneum. As proved by immunohistochemical incubation with antibodies to CK 5/6, CK 14 and CK 19, a tissue-specific cytokeratin (CK) expression pattern was maintained during the whole perfusion period. After 7 days of culture vimentin was synthesized in the fibroblast layer and was found in small quantities in each layer of the epithelium. In contrast to conventional cultures, where dissociation of the tissue and a subculture interruption is usually needed for long-term culture, this is not necessary for perfusion cultured tissue. The use of perfusion-cultured gingival explants as autogenous transplants is investigated herein. PMID:9483924

Lehmann, P; Kloth, S; Aigner, J; Dammer, R; Minuth, W

1997-02-01

207

Recent Innovations in Cultural Practices in the Mid-Atlantic Coast Region of the U. S.: Novel Systems for Increasing Fall Fruiting in Short-day Type Strawberry Cultivars and Opportunities for Out-of-Season Fruit Production  

Technology Transfer Automated Retrieval System (TEKTRAN)

Producing strawberry transplants from runner tips that were plugged about one month earlier (early July) than the standard time (early August) promoted fall flowering in some short-day strawberry cultivars. In 2002, 100 percent of ‘Chandler’ transplants produced in early July flowered in the fall,...

208

Space Day 2000.  

ERIC Educational Resources Information Center

Introduces three design challenges for fourth, fifth, and sixth grade students created by the Challenger Center for Space Science Education. Presents information on Space Day and the National Classroom and provides Internet site addresses. (YDS)

Winslow, Joyce

2000-01-01

209

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.

210

Day Traders At Risk  

NSDL National Science Digital Library

On July 29, 1999, Mark Barton, a 44-year old day trader, opened fire at two Atlanta brokerage firms, killing nine people and injuring thirteen before taking his own life. Barton had recently lost an estimated half a million dollars trading, according to The New York Times. Coincidentally, just a week and a half after the tragedy in Atlanta, the North American Securities Administrators Association (NASAA) released a study condemning the practice of day trading, finding that, of the 4,093 trades in 26 accounts analyzed, "seventy percent of the accounts lost money and were traded in a manner that realized a 100% Risk of Ruin (loss of all funds)." The study concluded, "It is absolutely clear that the average public investor should refrain from short-term trading." This week's In the News looks at the day trading industry and its effectiveness. The eight resources listed provide studies, recent news, background information, and commentary on day trading.

Missner, Emily D.

211

Scientist of the Day  

NSDL National Science Digital Library

A first grade teacher in an urban school, eager to bring authentic science into the classroom, provides an opportunity for her students to experience science adventures and explorations, while also getting parents involved. She implemented a program called Scientist of the Day which allows students to experience simple hands-on science experiments, and to involve their parents both in and out of the classroom. The idea is for every child to have a turn being "Scientist of the Day".

Salinas, Maria

2005-10-01

212

Ionospheric Day-to-Day Variability Around the Whole Heliosphere Interval in 2008  

NASA Astrophysics Data System (ADS)

Ionospheric F2 peak electron densities (NmF2) measured at ten ionosonde stations have been analyzed to investigate ionospheric day-to-day variability around the Whole Heliosphere Interval (WHI) in 2008 (Day of Year (DOY) 50 - 140). The ionosonde data showed that there was significant global day-to-day variability in NmF2. This variability had 5-, 7-, 9-, 11-, 13.5-, and 16 - 21-day periodicities. At middle latitudes, the ionosphere appeared to respond directly to the solar-wind and interplanetary-magnetic-field (IMF) induced geomagnetic-activity forcing, with the day-to-day variability having the same periods as those in the solar-wind/IMF and geomagnetic activity. At the geomagnetic Equator, the ionosphere had a strong 7-day periodicity, corresponding to the same periodicity in the IMF B z component. In the equatorial anomaly region, the ionosphere showed more complicated day-to-day variability, dominated by the 9-day periodicity. In addition, there were also periodicities of 11 days and 16 - 21 days in the ionosonde data at some stations. The ionosonde data were compared with the Coupled Magnetosphere Ionosphere Thermosphere (CMIT) simulations that were driven by the observed solar-wind and IMF data during the WHI. The CMIT simulations showed similar ionospheric daily variability seen in the data. They captured the positive and negative responses of the ionosphere at middle latitudes during the first corotating interaction region (CIR) event in the WHI. The response of the model to the second CIR event, however, was relatively weak.

Wang, Wenbin; Lei, Jiuhou; Burns, Alan G.; Qian, Liying; Solomon, Stanley C.; Wiltberger, Michael; Xu, Jiyao

2011-12-01

213

Sun-Earth Days  

NASA Astrophysics Data System (ADS)

Sun-Earth Day is a well-coordinated series of programs, resources and events under a unique yearly theme highlighting the fundamentals of heliophysics research and missions. A menu of activities, conducted throughout the year, inspire and educate participants. Sun-Earth Day itself can vary in date, but usually is identified by a celebration on or near the spring equinox. Through the Sun-Earth Day framework we have been able to offer a series of coordinated events that promote and highlight the Sun, its connection to Earth and the other planets. Sun-Earth Day events are hosted by educators, museums, amateur astronomers and scientists and occur at schools, community groups, parks, planetaria and science centers around the globe. Sun-Earth Day raises the awareness and knowledge of formal and informal education audiences concerning space weather and heliophysics. By building on the success of Sun-Earth Day yearly celebrations, we seek to affect people of all backgrounds and ages with the wonders of heliophysics science, discovery, and exploration in ways that are both tangible and meaningful to their lives.

Thieman, J.; Ng, C.; Lewis, E.; Cline, T.

2010-08-01

214

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

215

Successful mouse hepatocyte culture with sandwich collagen gel formation  

PubMed Central

Purpose Primary mammalian hepatocytes largely retain their liver-specific functions when they are freshly derived from donors. However, long-term cultures of functional hepatocytes are difficult to establish. To increase the longevity and maintain the differentiated functions of hepatocytes in primary culture, cells can be cultured in a sandwich configuration of collagen. In such a configuration, hepatocytes can be cultured for longer periods compared with cultures on single layers of collagen. However, research regarding mouse hepatocytes in sandwich culture is lacking. Methods Primary mouse hepatocytes were sandwiched between two layers of collagen to maintain the stability of their liver-specific functions. After gelation, 2 mL of hepatocyte culture medium was applied. Results After 24 hours, 5, 10 days of culture, the collagen gel sandwich maintained the cellular border and numbers of bile canaliculi more efficiently than a single collagen coating in both high and low density culture dishes. Reverse transcription-polymerase chain reaction analysis of alpha-1-antitrypsin (AAT), hepatocyte nuclear factor 4 alpha (HNF4A), alphafetoprotein, albumin, tryptophan oxygenase (TO), the tyrosine aminotransferase gene, glucose-6-phosphatase, glyceraldehyde-3-phosphate dehydrogenase for mouse primary hepatocytes cultured on collagen coated dishes and collagen gels showed superior hepatocyte-related gene expression in cells grown using the collagen gel sandwich culture system. AAT, HNF4A, albumin, TO were found to be expressed in mouse hepatocytes cultured on collagen gels for 5 and 10 days. In contrast, mouse hepatocytes grown on collagen-coated dishes did not express these genes after 5 and 10 days of culture. Conclusion The collagen gel sandwich method is suitable for primary culture system of adult mouse hepatocytes.

Choi, Hyun Jung

2013-01-01

216

Tiny buds whispering: flowers in contemporary Japanese culture and ideology  

Microsoft Academic Search

Japan's poetic practice not only expresses verbal beauty and deep historicity, but also maintains the power to express cultural ideals and goals of the state through the use of nature–human metaphors. The political use of nature imagery as a template for human motivation and cultivation was described during the Heian period (CE 794–1185) and continues to the present day. This

Debra J. Occhi

2009-01-01

217

First Day of Fall  

NSDL National Science Digital Library

This activity can be done on the first day of winter, spring, or summer and is intended to help students understand the angle the sun's rays make with the horizon in their location. Students will construct a diagram depicting the sun's rays as they hit the Earth on the first day of the selected season. They will label and measure the angles made from the light of the sun striking the horizons of the various latitudes, and correlate that to the angles of latitude on Earth. This activity can be used as a tool for describing the intensity of the sun on these particular days. The site provides a sample chart and diagram as well as detailed instructions and a list of required materials.

Lehnert, Marna

218

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

219

Earth Day Network  

NSDL National Science Digital Library

Every spring, get ready for Earth Day with a visit to the official Web site of the Earth Day Network Web site, "an alliance of 5,000 groups in 184 countries working to promote a healthy environment and a peaceful, just, sustainable world." The Web site contains a wealth of information and resources designed to increase public awareness of important environmental issues and provide opportunities for individuals and communities to get involved. Visitors may read about current Earth Day Network campaigns and programs, as well as review environmental issues and threats with a collection of fact sheets and other resources. In all, this comprehensive and well-organized site is definitely worth a visit for anyone who would like to learn more about environmental problems and environmental activism.

220

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

221

Patients? Experiences of Pain Following Day Surgery - At 48 Hours, Seven Days and Three Months  

PubMed Central

Recent studies indicate that patients experience pain after day surgery for a longer period than previously known. This requires verification. This was a prospective, descriptive correlational study. A convenience sample of 298 day surgery patients undergoing various surgical procedures was asked to report pain intensity and its interference with daily function 48 hours, seven days and three months after day surgery. Correlation and regression analyses were performed. On a NRS, 55% (n=230) reported pain (?4) 48 hours after surgery, as did 43% (n=213) at seven days. Pain interfered with normal activities at ?4 NRS at 48 hours and at seven days, after which it decreased.

Rosen, Helena Inger; Bergh, Ingrid Helena; Oden, Anders; Martensson, Lena Birgitta

2011-01-01

222

Day Care Facts.  

ERIC Educational Resources Information Center

|The need for day care services is steadily growing as more mothers enter the labor force. This booklet describes the major efforts being made to provide these services. Included are efforts by all levels of government, unions and management, hospitals and universities, women's groups, and other public and private programs. (BH)|

Rosenberg, Beatrice

223

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.

224

Make a Splash Day  

ERIC Educational Resources Information Center

|At the annual, all-day events-sponsored by Project WET (Water Education for Teachers) and 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 the…

Coverdale, Greg; Rust, April; Jensen, Belinda

2004-01-01

225

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

226

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.

227

No Treatment Day School  

ERIC Educational Resources Information Center

|At the No Treatment Day School, less than 15% of students used the dormitory during the school week. Located in the heart of a reservation and serving local students, the K-12 school enrolled over 1,000 students. The site received Therapeutic Residential Model funding for the 2001-2002 school year. Initial evaluation of this site found an array…

DeJong, Judith A.; Holder, Stanley R.

2006-01-01

228

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

229

Residential and Day Services  

Microsoft Academic Search

Thinking about the current state of affairs in residential and day services for people with intellectual and developmental disabilities (ID\\/DD) prompted reflection first on the conditions and events that existed when I entered the field in 1965. My first experience was as an undergraduate assistant in a research project funded by the National Institutes of Health. The performance site for

RICHARD R. SAUNDERS

230

Nutrition on match day  

Microsoft Academic Search

What players should eat on match day is a frequently asked question in sports nutrition. The recommendation from the available evidence is that players should eat a high-carbohydrate meal about 3 h before the match. This may be breakfast when the matches are played around midday, lunch for late afternoon matches, and an early dinner when matches are played late in

Clyde Williams; Luis Serratosa

2006-01-01

231

Houston Day Care Center.  

National Technical Information Service (NTIS)

Sixty day care centers (DCC), randomly selected from 736 licensed child care facilities in Harris County, were surveyed for the incidence of diarrhea by weekly telephone calls for two years. Four non-randomly selected DCC were surveyed for outbreaks of di...

H. L. DuPont

1982-01-01

232

Income per day  

NSDL National Science Digital Library

The number of people living on less than one dollar per day has decreased in some places in the world while it has stayed steady in other areas. This could be because the population has been rising in those areas and the economy cannot cope in those certain places.

N/A N/A (None;)

2006-09-13

233

EPA Earth Day Website  

NSDL National Science Digital Library

This page from the US Environmental Protection Agency features a number of educational resources in honor of this year's Earth Day celebration. There are links to localized volunteer opportunities, a series of "green tips" or ideas for reducing one's carbon footprint, and a set of lesson plans and activities for K-12 students.

234

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

235

Rural Family Day Care  

ERIC Educational Resources Information Center

|Rural family day care settings are reviewed and the need for back up resources is emphasized. Suggestions are made for action by responsible agencies, trainers and others concerned with the delivery of effective child care services, particularly when appropriate group care is not available. (MS)|

Adams, Diane; Macht, Mary

1976-01-01

236

Modeling Day and Night  

NSDL National Science Digital Library

In this activity (on page 1 of the PDF), learners make a "mini-globe" to investigate the causes of day and night on our planet. This is an introductory activity in a guide related to the science of sleep and daily rhythms. This lesson guide includes background information, information about cooperative learning, setup and management tips, extensions and handouts.

Moreno, Nancy P.; Tharp, Barbara Z.; Vogt, Greg L.

2009-01-01

237

Sunny Day Painting  

NSDL National Science Digital Library

In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun. On a sunny day, learners use a variety of painting tools (brushes, rollers, spray bottles, etc.) to "paint" water on sidewalks, buildings, fences, etc. outside. Learners observe how the water moves and evaporates from the surfaces.

Museum, Kohl C.

2012-01-01

238

The effects of starter culture on chemical composition, microbiological and sensory characteristics of Turkish Ka?ar Cheese during ripening  

Microsoft Academic Search

In this study, Kasar cheeses were produced from raw milk and starter culture was added to pasteurized milk. Chemical, microbiological and organoleptic properti es of Kasar cheeses were analyzed at certain times during the ripening periods (on the 1, 7, 15, 60, 90 days) . Generally, physico-chemical parameters were not a ffected by starter culture. The pH, ripening index, water

DURMU? SERT; AHMET AYAR; NIHAT AKIN

2007-01-01

239

Some characteristics of peroxidase secreted by cotton ovule cultures  

Microsoft Academic Search

Cotton (Gossypium hirsutum L.) ovule cultures secreted a soluble peroxidase into the surrounding medium, resulting in a 200-fold increase in this activity during the 30-day growth period. The peroxidase activity was thermostable from 4°C to 60°C and displayed a pH optimum of 5.5 to 6.0. The ovule peroxidase was susceptible to periodate treatment and very resistant to protease digestion. The

Jay E. Mellon

1986-01-01

240

Music Every Day.  

ERIC Educational Resources Information Center

Explores the suggestion of a musician studying the Montessori method that children are more susceptible to developing musical skills while in their sensitive period for language. Proposes a list of categories and presentations that can help teachers create their own music program: (1) songs and fingerplays; (2) ear training; (3) movement; (4)…

Leto, Frank

1995-01-01

241

A respirometer for organ cultures  

PubMed Central

1. A differential respirometer that can measure the oxygen uptake of organ cultures for periods of several days is described. 2. Diethanolamine is used as an external carbon dioxide buffer so that oxygen consumption can be measured in the presence of physiological concentrations of carbon dioxide and bicarbonate. 3. The efficiency of carbon dioxide retention with 5% carbon dioxide as gas phase is estimated to be 75% and the accuracy to be ±5% with a measured rate of oxygen uptake in excess of 40?l./hr. 4. Some experiments with guinea-pig retina are reported. ImagesFig. 2.

Lucas, D. R.

1965-01-01

242

Rationalization of Comet Halley's periods  

SciTech Connect

The sense of long axis orientation of Comet Halley during the Vega 1 encounter must be reversed from that deduced by Sagdeev et al. (1986) in order to harmonize the comet nucleus' Vega/Giotto-observed orientations with periodicities extracted from time-series brightness data. It is also demonstrated that Vega/Giotto observations can be satisfied by either a 2.2- or 3.7-day long-axis free precession period. A novel Fourier algorithm is used to reanalyze five independent data sets; strong evidence is adduced for periods harmonically related to a 7.4-day period. The preferred candidate models for Halley's nuclear rotation are characterized by a long-axis precession period of 3.7 days. 79 refs.

Belton, M.J.S. (National Optical Astronomy Observatories, Tucson, AZ (USA))

1990-07-01

243

Market day midwives.  

PubMed

In August 1994 in Uganda, the Social Marketing for Change (SOMARC) project invited midwives to counsel clients and sell low-dose oral contraceptives (OCs), condoms, and the progestin-only OCs in local markets. They now sell these contraceptives from vendor stalls in busy markets, which allows clients to speak privately with the midwives. The midwives refer clients to their maternity clinics or to hospitals for other contraceptive methods and reproductive/maternal and child health (MCH) services. All Market Day Midwives have taken a 1-month family planning course and a course in quality of customer service. By the end of March 1994, 17 midwives served 22 marketplaces ranging from rural village markets operating once every 2 weeks to very busy, daily city markets. Some markets have 15 permanent stalls, while other midwives move within markets. Market Day Midwives have been able to add more than 1900 women to the list of women using the OC Pilplan. 65% of the new acceptors had not used any OC before Pilplan. 46% of them would be women considered to be high risk if they were to become pregnant (teenagers, women over 35, and women with many children). These midwives have been successful because they operate where the people are and they provide anonymity. Market Day Midwives have also brought in men who seek them out for family planning/sexually transmitted disease prevention services. They have sold more than 1000 Protector condoms. Another benefit of the market day approach is professional growth of the midwives. They often invest their earnings into new equipment and their private maternity clinics. They have learned the significance of advertising and the value of high-quality customer service. They look to expand into other markets and to integrate MCH products (e.g., oral rehydration) into their contraceptive business. PMID:12345683

1994-06-01

244

Day Activities Programming  

Microsoft Academic Search

The severely impaired chronic clients have often been viewed as treatment failures due to their severe functional limitations. A day activities program is described using an occupational model to help clients establish a health-enhancing work\\/play\\/rest balance. Improving the quality of life is stressed. Work and recreational activities are offered within a supportive milieu environment, emphasizing consistency, concreteness, and nonalization. Suggestions

Mira Coviensky; Victoria Buckley

1986-01-01

245

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.

246

Dynamic medium containing kit ligand and follicle-stimulating hormone promotes follicular survival, activation, and growth during long-term in vitro culture of caprine preantral follicles.  

PubMed

The aim of this study was to evaluate the effects of a dynamic medium containing kit ligand (KL) and follicle-stimulating hormone (FSH) on the in vitro culture of caprine preantral follicles for 16 days. Ovarian fragments were cultured in ?-MEM(+) containing or not containing KL (50 ng/ml) and/or FSH (50 ng/ml) added during the first (days 0-8) and/or second half (days 8-16) of the culture period. Noncultured (control) and cultured fragments were processed for histological and ultrastructural evaluation. After 1 day of culture, only the treatments performed with KL or FSH maintained a percentage of normal follicles similar to that of the control. After 16 days, all treatments using KL until day 8 (KL/KL, KL/FSH, and KL/FSH+KL) and only FSH during the entire culture period (FSH/FSH) showed higher rates of follicular survival compared to ?-MEM(+) alone. After 1 and 8 days, the treatments initially cultured with KL increased the percentage of follicular activation in comparison to ?-MEM(+) alone and other treatments. The highest follicular diameter after 16 days was observed in follicles cultured with KL until day 8 followed by FSH (KL/FSH). Furthermore, this treatment promoted, as early as after 1 day of culture, an increase in oocyte growth compared to ?-MEM(+) alone. Ultrastructural analysis confirmed the integrity of follicles cultured in KL/FSH after 16 days. In conclusion, a dynamic medium containing KL and FSH maintained follicular integrity and promoted follicular activation and growth during the long-term in vitro culture of caprine preantral follicles. PMID:21494023

Lima, I M T; Celestino, J J H; Faustino, L R; Magalhães-Padilha, D M; Rossetto, R; Brito, I R; Donato, M A M; Lopes, C A P; Campello, C C; Peixoto, C A; Figueiredo, J R; Rodrigues, A P R

2011-04-14

247

An integrated system of solar light, artificial light and organic carbon supply for cyclic photoautotrophic-heterotrophic cultivation of photosynthetic cells under day–night cycles  

Microsoft Academic Search

An integrated system of solar light, artificial light and organic carbon supply was developed for cyclic photoautotrophic-heterotrophic cultivation of photosynthetic cells. The energy source for the culture is automatically switched to solar light energy (when the weather is sunny), to artificial light energy (during the cloudy period of the day) or to organic carbon source (at night). Thus minimum amount

James C. Ogbonna; Toshihiko Soejima; Charles U. Ugwu; Hideo Tanaka

2001-01-01

248

The uptake of tritiated thymidine by human spleen cell cultures: a comparison between fresh and stored cells  

PubMed Central

Individual cell suspensions were made from four human spleens, and part of each suspension was stored at—196° for up to 50 days. After being thawed the cells were placed in tissue culture and `flash' labelled with tritiated thymidine at successive intervals in the culture period. The pattern of thymidine uptake was similar when comparison was made between cultures of stored cells and similar cultures of fresh cells from the corresponding spleens. It is concluded that individual stored spleen cells retain normal viability, following storage for at least 50 days.

Meek, E. S.; Symes, M. O.; Riddell, A. G.

1967-01-01

249

About the Solar Activity Rotation Periods  

NASA Astrophysics Data System (ADS)

The purpose of this paper is to evidence, from a statistical point of view, the different periods of solar activity. The well known period is that of 150-160 days, but many others were detected between 9 and 4750 days (length of solar cycle). We tabulated 49 articles revealing 231 periods. In order to explain them, different hypotheses were suggested.

Mouradian, Zadig

2007-03-01

250

Fabulous Weather Day  

NSDL National Science Digital Library

Each year, first graders at Kensington Parkwood Elementary School in Kensington, Maryland, look forward to Fabulous Weather Day. After studying weather for three months, we celebrate what we have learned and stretch our thinking further into the weather world around us! 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 their understanding of how the weather works and how it can affect their lives. Our unit focused on guiding students to formulate explanations about animals based on scientific evidence.

Marshall, Candice; Mogil, H. M.

2007-01-01

251

International Women's Day Celebrated  

NSDL National Science Digital Library

With historical origins dating back to the early 20th century, International Women's Day has been officially celebrated since 1977, when the United Nations made a special declaration setting the date in early March every year. This year saw a flurry of important events around the world that coincided with March 8th, including ceremonies designed to honor women of national and international importance in many countries and a number of valuable statements made on behalf regarding the cause of gender equality. A number of prominent women also gave speeches this Monday, including Nobel Peace Prize laureate Shirin Ebadi, who noted that "The rights of women and democracy are one and the same." A study released this past Monday by the Inter-Parliamentary Union noted that women make up a record-breaking 15.3 percent of the world's lawmakers. The country with the greatest percentage of female lawmakers is Rwanda (49 percent), followed closely by Sweden, with 45 percent. While there was much to celebrate, there were also some ominous trends noted by lawmakers and officials, including the rapid and disturbing increase of young women with HIV around the world in the past few years, a fact noted by UN Secretary General Kofi Annan during his remarks to a special UN session.The first site will take visitors to a news piece from the Baltimore Sun that contains Shirin Ebadi's remarks made on International Women's Day. The second link leads to a news piece from Al-Jazeera that discusses the rapid increase of HIV among young women, a public health issue that is becoming endemic in certain parts of the developing world. The third link leads to an article from the Cornell (University) Daily Sun that offers details on a celebration honoring women on their campus who had worked to improve the situation of women locally, nationally, and internationally. The fourth link will take visitors to the rather comprehensive website for International Women's Day 2004 created by the United Nations. The site contains information on the events sponsored by the UN and its Women Watch website, which serves as a clearinghouse for resources on gender equality and empowerment of women. The fifth link will take users to a good history of International Women's Day, created by Joyce Stevens for the Australian Women's Intra Network. The final link leads to a well-honed site developed by the World Health Organization to highlight its own work on women's health (including special sections on work in Southeast Asia) and to bring together a number of useful fact sheets and related web-based resources.

252

Aquarist for a Day  

NSDL National Science Digital Library

In this video Jonathan visits the New England Aquarium as a volunteer aquarist for a day to learn what it takes to care for thousands of fish in dozens of exhibits, up to the massive 200,000 gallon Giant Ocean Tank (GOT). What he finds is an eye openerâitâs not all fun and games. Maintaining an aquarium is serious work. But it does have its benefits, as Jonathan discovers while diving in the GOT and feeding the sharks. This segment won a New England Emmy Award! Please see the accompanying study guide for educational objectives and discussion points.

Productions, Jonathan B.

2007-08-26

253

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

254

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

255

Culture vultures: considering culture and communication in virtual environments  

Microsoft Academic Search

cul·ture (klchr) n. 1. a. The totality of socially transmitted behavior patterns, arts, beliefs, institutions, and all other products of human work and thought; b. These patterns, traits, and products considered as the expression of a particular period, class, community, or population: Edwardian culture; Japanese culture; the culture of poverty; c. These patterns, traits, and products considered with respect to

Elizabeth F. Churchill; Sara Bly

2000-01-01

256

Venus Length-of-Day Variations  

NASA Astrophysics Data System (ADS)

Since 2004 we have been monitoring the instantaneous spin state of Venus with the goals of measuring the precession of the rotation axis and of quantifying daily, seasonal, and secular changes in length-of-day. We use the Goldstone and Green Bank Telescopes for these observations. The spin period of Venus is thought to be set by a delicate balance between solid-body tides and atmospheric torques that must vary as insolation and orbital parameters change [Bills 2005]. Our measurements to date reveal length-of-day (LOD) variations of 50 ppm. None of the models can be reconciled with the Magellan 500-day-average spin period of 243.0185 +/- 0.0001 days [Davies et al 1992], nor with a 16-year-average estimate of 243.023 +/- 0.002 days [Mueller et al 2012], nor with any other constant spin period. With our nominal solution we can rule out a constant spin period with over 99.9% confidence. When allowances are made for uncertainties in spin axis orientation and instantaneous spin measurement epochs, the confidence is reduced but remains higher than 99%. We attribute the LOD variations primarily to angular momentum exchange between the atmosphere and solid planet. Because there are so few constraints on the internal dynamical structure of the Venusian atmosphere, a time history of atmospheric angular momentum changes can be used to address questions related to the dynamics of the atmosphere, including its super-rotation, and climatic variations.

Margot, Jean-Luc; Campbell, D. B.; Peale, S. J.; Ghigo, F. D.

2012-10-01

257

Development of PTH-responsive adenylate cyclase activity during chondrogenesis in cultured mesenchyme from chick limb buds  

Microsoft Academic Search

Summary  The present study investigated the development of parathyroid hormone (PTH)-responsive adenylate cyclase (AC) activity in\\u000a chondrogenic cells differentiating from chick limb mesenchyme in culture. Mesenchyme from stage 25 chick embryos was removed\\u000a from the distal tip (0.3 mm) of limb buds and cultured for a 6 day period in high density micromass cultures. Under these\\u000a conditions, initial appearance of cartilage

Anthony A. Capehart; David M. Biddulph

1991-01-01

258

International Women's Day  

NSDL National Science Digital Library

International Women's Day has been celebrated by the United Nation since 1975, and this fine website provides a host of information on this year's celebration for the general public. On the site, visitors can read a message from Secretary-General Kofi Annan, view a webcast of related events sponsored by the UN, and learn about the history behind this event. The site also has a link to Women Watch, which provides very comprehensive information on gender equality and the empowerment of women from around the world. Additionally, the site also has information about the review and appraisal of the Beijing Declaration and Platform for Action of 1995. Finally, the site has some items that will be of broad interest, such as materials on the UN Millennium development goals and materials on disaster response strategies.

259

National Estuaries Day  

NSDL National Science Digital Library

Get the most out of National Estuaries Day (October 5, 2002) by visiting this Web site from the National Oceanic and Atmospheric Administration (NOAA). Follow a link to Estuary Live!, which offers online interactive fieldtrips through a number of estuaries around the nation. Guided tours of eight estuaries will be webcast live October 3 and 4, supplemented by videos from a number of other estuaries. Internet participants "will have an opportunity to see the fascinating creatures that make estuaries their home and experience the diversity of estuarine ecosystems." Viewers may submit questions during the webcasts or videos, which will be answered by tour guides and educators from the featured estuaries. Click on About Estuaries for an introduction to estuarine ecosystems and for links to a number of Web sites that "provide general information, curriculums and helpful references on estuaries."

2002-01-01

260

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

261

The day of women.  

PubMed

March, 1994, was celebrated as Women's Month in the Philippines, with a focus on women's health. The theme chosen was Me, Too, a response to the ideal of feminine martyrdom. The intended message was that it is acceptable for women to look after themselves first, because only this way could they look after the other people in their lives. The Woman Who is Okey is defined as the woman who looks after her health and who practices self-care. The major health problems of women include cancer of the breast and cervix; reproductive tract infections; HIV/AIDS; poor nutrition, exacerbated by pregnancy and lactation; and increased incidence of cardiovascular disease linked to an increase in women smokers. The Woman Who is Okey is a woman who: carries out breast self examination each month, submits to a pap smear examination every year, does not smoke, spaces her pregnancies by 2-3 year intervals, knows how to protect herself from HIV/AIDS and other sexually transmitted diseases, visits a health center regularly for prenatal check-ups and other health services, and meets her hygienic and fitness needs. The campaign was broadened to include rape, violence, sexual harassment, and discrimination and exploitation of women. The activities of the Department of Health (DOH) during March 8, International Women's Day, were coordinated with those planned by women's groups spearheaded by the National Commission on the Role of Filipino Women (NCRFW). The DOH set up a permanent Women's Center in government hospitals throughout the country and began to institutionalize assistance to women who are victims of violence, including rape. The national celebration held in Manila was a day-long program organized by the NCRFW, in which close to 18,000 women participated from all political organizations. President Fidel V. Ramos was the keynote speaker. PMID:12288259

Jimenez David, R

1994-09-01

262

42 CFR 412.626 - Transition period.  

Code of Federal Regulations, 2012 CFR

...If the 30th day before the cost reporting period begins falls on a day that the postal service or other delivery sources are not open for business, the inpatient rehabilitation facility is responsible for allowing sufficient time for the...

2012-10-01

263

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

264

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.

265

Factors affecting the multiplication and subculture of Treponema pallidum subsp. pallidum in a tissue culture system.  

PubMed

Limited multiplication of Treponema pallidum subsp. pallidum (Nichols strain) can be obtained in the presence of Sf1Ep rabbit epithelial cell cultures, but continuous culture has not yet been achieved. In the system currently employed, growth is exponential for the first 10 to 15 days of culturing, after which multiplication and the percentage of motile organisms decrease. In an effort to identify culture conditions which may adversely affect treponemal viability and growth, eight culture parameters were monitored over a 12-day period of incubation. Several of these parameters, including pH, redox potential, dissolved oxygen concentration, and glucose levels were found to change dramatically during the course of incubation, indicating that they may be responsible for the cessation of treponemal multiplication. The feasibility of extending the period of growth by subculturing was also investigated. In preparation for planned serial subcultivation experiments, several subculture procedures were tested and found to be effective in allowing the transfer of T. pallidum from 3-day-old primary cultures to secondary cultures without loss of motility or growth potential. Increases of up to 55-fold were observed in secondary cultures, but increased growth due to subculturing was not a consistent finding. Use of subculture intervals of greater than or equal to 6 days resulted in a progressive decrease in treponemal multiplication in secondary cultures, although retention of motility was extended in the subcultures compared with motility in the primary cultures. These results indicate that the lack of continued multiplication of T. pallidum in subcultures is not due to damage to the treponemes during subculture. Prolonged multiplication of T. pallidum may be obtained through the stabilization of culture conditions by either performing subcultures at regular intervals or by medium replacement techniques. It was also found that primary T. pallidum cultures could be established by using as the inoculum treponemes that had been stored at -70 degrees C in a medium containing 15% glycerol. PMID:3091504

Norris, S J; Edmondson, D G

1986-09-01

266

Studies of the neuronal transdifferentiation process in cultured human pheochromocytoma cells: effects of steroids with differing functional groups on catecholamine content and cell morphology  

Microsoft Academic Search

The neuronal differentiation of adrenal pheochromocytoma cells from human subjects was studied in vitro for periods of up to 65 days. Changes with time in culture were observed in both intracellular catecholamine content (progressive decreases in epinephrine, norepinephrine, and dopamine, except for a possible transient early increase in the latter) and in morphology (increases in neurite outgrowth) of cells cultured

JohnW Brown; LawrenceM Fishman; Andres Carballeira

1998-01-01

267

Competitive growth of slow growing Rhizobium japonicum against fast growing Enterobacter and Pseudomonas species at low concentrations of succinate and other substrates in dialysis culture  

Microsoft Academic Search

A cultivation system with simultaneous growth of six bacterial cultures in separate bags in dialysis culture was developed. In a medium with no added carbon source (one half concentrated Hoagland solution, water deionized and distilled), cell number ofRhizobium japonicum increased during a 7 day period by a factor of 35, whereas the number ofEnterobacter aerogenes cells decreased to one half.

Claudia Humbeck; Heidemarie Thierfelder; Peter M. Gresshoff; Dietrich Werner

1985-01-01

268

Franco, the Early Days  

NASA Astrophysics Data System (ADS)

As this meeting is to honour Franco on the occasion of his 60 birthday I thought that it might be fitting to report on some early reminiscences of Franco of the pre-IBA days. Franco first came to Groningen in 1972 for a seminar on the invitation of Alex Lande. Alex and Franco had known each other from the Niels Bohr Institute in Copenhagen, where they had collaborated. In 1972 both Alex and I had been freshly appointed at Groningen, Alex on the Faculty of the Theory Department, and I myself as the new director of the KVI. A position for a Senior Scientist in theory had been newly created at the KVI with the aim to establish a strong in-house theory group. Needless to say that everyone who met Franco was deeply impressed by him. We thus were extremely happy to be able to entice Franco to join the KVI as a Senior Scientist in 1974, after he had spent a few weeks in Groningen in 1973 as a visitor. So characteristic of Franco he immediately took a strong interest in the experimental program as evidenced by the following publications on the weak-coupling description of three-nucleon pickup in the (p, ?) reaction [1] and the spreading width of deep-hole states [2]. Both topics appear to have maintained their actuality, looking at the many papers that have been published since on these and related topics. But this brief citation of the "other Franco" would not do justice to him without mentioning the diverse palette of Franco's work also listed in the KVI 1974 Annual Report, reflecting Franco's extremely broad and diversified scientific interests. [3-10]...

Siemssen, R. H.

2004-04-01

269

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 ...

270

27.3-day and 13.6-day atmospheric tide  

Microsoft Academic Search

An analysis of time variations in the earth’s length of day (LOD) for 25 years (1973–1998) versus atmospheric circulation\\u000a changes and lunar phase is presented. It is found that, on the average, there is a 27.3-day and 13.6-day period oscillation\\u000a in global zonal wind speed, atmospheric geopotential height, and LOD following alternating changes in lunar phase. Every 5–9\\u000a days (6.8

GuoQing Li; HaiFeng Zong

2007-01-01

271

Lactic Acid Production in a Mixed-Culture Biofilm Reactor †  

PubMed Central

Novel solid supports, consisting of polypropylene blended with various agricultural materials (pp composite), were evaluated as supports for pure- and mixed-culture continuous lactic acid fermentations in biofilm reactors. Streptomyces viridosporus T7A (ATCC 39115) was used to form a biofilm, and Lactobacillus casei subsp. rhamnosus (ATCC 11443) was used for lactic acid production. For mixed-culture fermentations, a 15-day continuous fermentation of S. viridosporus was performed initially to establish the biofilm. The culture medium was then inoculated with L. casei subsp. rhamnosus. For pure-culture fermentation, L. casei subsp. rhamnosus was inoculated directly into the reactors containing sterile pp composite chips. The biofilm reactors containing various pp composite chips were compared with a biofilm reactor containing pure polypropylene chips and with a reactor containing a suspension culture. Continuous fermentation was started, and each flow rate (0.06 to 1.92 ml/min) was held constant for 24 h; steady state was achieved after 10 h. Lactic acid production was determined throughout the 24-h period by high-performance liquid chromatography. Production rates that were two to five times faster than those of the suspension culture (control) were observed for the pure- and mixed-culture bioreactors. Both lactic acid production rates and lactic acid concentrations in the culture medium were consistently higher in mixed-culture than in pure-culture fermentations. Biofilm formation on the chips was detected at harvest by chip clumping and Gram staining.

Demirci, Ali; Pometto, Anthony L.; Johnson, Kenneth E.

1993-01-01

272

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."

273

In vitro culture of sheep lamb ovarian cortical tissue in a sequential culture medium  

PubMed Central

Purpose This study evaluates the effect of a sequential culture system on the follicular development of sheep lamb ovaries, aiming to establish an available in vitro culture system for ovarian culture. Methods Lamb ovarian cortical fragments were cultured on a steel mesh with a nitrocellulose membrane pre-coated by type1 collagen. Several culture media were used for the determinations, specifically, a control medium (?-MEM), a constant medium (control medium supplemented with 75 ng/mL human recombinant EGF, 200 mIU/mL sheep FSH, 100 ng/mL human recombinant GDF-9, and 100 ng/mL human recombinant bFGF), and a sequential medium (control medium supplemented with sequential growth factors added on different days). Ovarian tissues, both fresh and cultured, were processed for histological and apoptotic assays, while spent culture media were processed for hormone assays. Results It was found that the growth of lamb primordial follicles can be initiated during culture in vitro. Compared to the control medium, sequential culture medium significantly increased the percentage of secondary follicles in cultures, while the follicle and oocyte diameters of primary and secondary follicles were also observed to increase in this medium. The constant medium was found to increase the number and diameter of secondary follicles only 18 days after culture. After this same period of time, some normal antral follicles were found in the sequential medium, while a few abnormal antral-like follicles were found in the control medium. Moreover, sequential medium appeared to significantly increase estradiol and inhibin production, especially 10–18 days after culture. The highest percentage of normal follicles and the lowest apoptotic cell rates were observed in the sequential medium, suggesting that a sequential addition style of culture can improve follicle and tissue viability. Conclusions The sequential addition of FSH, EGF, GDF-9, and bFGF can stimulate primordial follicle transmittal into the later development stages, even as far as the antral stage, improve the survival rate of follicles, and maintain follicular viability.

Peng, Xiayu; Yang, Mei; Wang, Liqin; Tong, Chen

2010-01-01

274

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

2012-08-03

275

Changes in cell biochemistry in response to culture of protoplasts with oxygenated perfluorocarbon.  

PubMed

Superoxide dismutase (superoxide oxidoreductase; EC 1.15.1.1; SOD) was measured in enzymatically isolated protoplasts of Salpiglossis sinuata following culture in aqueous nutrient medium overlaying oxygen-gassed perfluorodecalin (Flutec PP6; BNFL Fluorochemicals, UK). SOD was extracted from harvested, lysed protoplast-derived cells after 1, 3, 7 and 14 days of culture and assayed spectrophotometrically. Protoplasts cultured with oxygenated PFC (+/- s.e.m, n = 5) showed significant increases in mean SOD activity to 4.2 +/- 0.1 U after 1 day (P < 0.05) and 9.3 +/- 0.7 U after 3 days (P < 0.01), with a fall in mean SOD after 7 days (5.1 +/- 0.9 U), similar to control. The decrease in SOD after 7 days correlated closely with a progressive fall in pO2 in the PFC phase over the same period. In contrast, control protoplasts (medium alone) or protoplasts cultured in medium overlaying non-oxygenated PFC showed no significant changes in mean SOD activity over the 14-day culture assessment period. PMID:9352063

Wardrop, J; Edwards, C M; Lowe, K C; Davey, M R; Power, J B

1997-11-01

276

International Cultural Experience Day: A Festival for Foreign Language Students.  

ERIC Educational Resources Information Center

|An annual foreign language festival established by McNeese State University and the Calcasieu Parish School System (Louisiana) was designed to motivate students, inform them of employment opportunities, help them understand their own and other heritages, and illustrate the international and intercultural opportunities and challenges of the modern…

Marshall, Gene; And Others

277

Circadian Corticosteroid Periodicity: Critical Period for Abolition by Neonatal Injection of Corticosteroid  

Microsoft Academic Search

Circadian variation of corticosteroid concentrations in rat plasma is suppressed if corticosteroids are administered between days 2 to 4 of neonatal life, but not if they are given between days 12 to 14 of neonatal life. This indicates a critical period for the effect of corticosteroid administration on the central nervous system pathways regulating such periodicity. Circadian periodicity of corticosteriods

Dorothy T. Krieger

1972-01-01

278

Myth or Truth: Independence Day.  

ERIC Educational Resources Information Center

|Most Americans think of the Fourth of July as Independence Day, but is it really the day the U.S. declared and celebrated independence? By exploring myths and truths surrounding Independence Day, this lesson asks students to think critically about commonly believed stories regarding the beginning of the Revolutionary War and the Independence Day

Gardner, Traci

279

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

280

Myth or Truth: Independence Day.  

ERIC Educational Resources Information Center

Most Americans think of the Fourth of July as Independence Day, but is it really the day the U.S. declared and celebrated independence? By exploring myths and truths surrounding Independence Day, this lesson asks students to think critically about commonly believed stories regarding the beginning of the Revolutionary War and the Independence Day

Gardner, Traci

281

Cleansing the long-term micropropagated triploid watermelon cultures from covert bacteria and field testing the plants for clonal fidelity and fertility during the 7–10 year period in vitro  

Microsoft Academic Search

The study was aimed primarily at cleansing the in vitro-decline displaying long-term micropropagated triploid watermelon ‘Arka Manik’ cultures from covert bacteria and their further field testing. Disinfectant treated shoots showed endophytic survival but to a lesser extent in shoot-tips. Culturing the NaOCl (5 min) treated shoot-tips on filter paper bridges in liquid watermelon medium containing single antibiotic (gentamycin (Gm), amoxycillin

Pious Thomas; Bhanupanthula S. Prabhakara; Mottiyan Pitchaimuthu

2006-01-01

282

Moderate physical activity patterns of minority women: the Cross-Cultural Activity Participation Study.  

PubMed

Using data from 12 days of detailed physical activity records (PA records), we analyzed the physical activity patterns of 141 African American and Native American women, ages 40 and older, enrolled in the Cross-Cultural Activity Participation Study. PA records were completed every other month for three consecutive 4-day periods. The proportion of women who met the 1993 Centers for Disease Control and Prevention and the American College of Sports Medicine recommendation to accumulate at least 30 minutes of moderate intensity activity during most days of the week (at least 3 days of the 4-day periods) ranged from 63% to 70%. Nearly one third of women met the recommendation for more than one 4-day period. On days when subjects accumulated at least 30 minutes of moderate activity, time spent in moderate activity was 112 minutes/day. Most women performed household chores (95%, median = 24 minutes/day), walking for exercise (87%, median = 30 minutes/day), occupational (65%, median = 37 minutes/day), child care (53%, median = 32 minutes/day), and lawn and garden activities (51%, median = 43 minutes/day). Fewer than 25% reported conditioning and sports activities. In general, more Native Americans than African Americans were active in moderate activities. In conclusion, definitions used to characterize regular physical activity should be consistent among studies, and physical activity surveys among women should include occupation-related and home-related activities. PMID:10495261

Ainsworth, B E; Irwin, M L; Addy, C L; Whitt, M C; Stolarczyk, L M

283

Dietary fat influences electric membrane properties of neurons in cell culture  

Microsoft Academic Search

1.SJL\\/J mice were maintained on semipurified diets which differed in the ratio of polyunsaturated\\/saturated fatty acid content (P\\/S). Exposure was from conception and was maintained for periods ranging from 6 to 34 weeks.2.Neural cell cultures were prepared from dorsal root ganglia (DRG). After 6 and 20 days of culture, neuronal electric membrane properties were determined quantitatively by intracellular recording.3.A number

Brian Scott; James Lew; M. T. Clandinin; B. Cinader

1989-01-01

284

Variability in storage potential of banana shoot cultures under medium term storage conditions  

Microsoft Academic Search

Shoot cultures of 401 banana clones were conserved under slow growth conditions (16±1°C, 25µmol m-2 s-1). Storage duration-defined as 60% survival time of 20 shoot cultures of a clone-averaged 334 days. However, large differences occurred among the different genomic (sub)groups and even within the same (sub)group. East-African highland bananas and non-plantain AAB bananas can be stored for significantly longer periods.

Ines Van den houwe; Kris De Smet; Hugues Tezenas Montcel; Rony Swennen

1995-01-01

285

Establishment and Characterization of a Culture System for Enzymatically Released Rat Dental Pulp Cells  

Microsoft Academic Search

.   To establish a cell culture system that reflects the dentin formation in dental pulp tissue, we used dental pulp cells enzymatically\\u000a isolated from rat incisor teeth. During the 20-day culture period, the cells exhibited various phenotypes of the odontoblast\\u000a differentiation process, from the immature stage to the terminal mineralization stage. The cells began to form the mineralized\\u000a nodules from

S. Yokose; H. Kadokura; Y. Tajima; K. Fujieda; I. Katayama; T. Matsuoka; T. Katayama

2000-01-01

286

Acetylcholinesterase inhibitor treatment delays recovery from axotomy in cultured dorsal root ganglion neurons  

Microsoft Academic Search

Summary  We have previously reported that dorsal root ganglion neurons cultured in the presence of the highly specific, reversible acetylcholinesterase inhibitor 1,5-bis-(4-allyldimethylammoniumphenyl) pentan-3-one dibromide (BW284c51), showed significantly reduced neurite outgrowth and contained massive perikaryal inclusions of neurofilaments. In the present report we have more closely examined these changes in a time course study over a 21-day culture period using a combined

Jeffrey L. Dupree; John W. Bigbee

1996-01-01

287

Ultrastructure of the early human feto-maternal interface co-cultured in vitro  

Microsoft Academic Search

BACKGROUND: The study was designed to investigate the ultrastructural features of the early human feto- maternal interface when generated by in-vitro co-culture, and compare these with findings reported previously from human pregnancies. METHODS: Placental villi and decidua parietalis tissues from 8-12 week pregnancies were co-cultured in vitro over a 4-day period. The co-incubations were ended at 24 h intervals and

M. O. Babawale; M. A. Mobberley; T. A. Ryder; M. G. Elder; M. H. F. Sullivan

2002-01-01

288

AH Draconis - a tale of two periods  

NASA Astrophysics Data System (ADS)

Using BAA data from the past 37 years, the SRb variable star AH Dra is found to have two slightly variable periods of around 105 and 189 days and a range of magnitude 7.0 to 8.9. This is in contrast to the GCVS period of 158 days and range of 8.5-9.3.

Griffin, D.

2010-04-01

289

A two-step serum-free culture system supports development of human oocytes from primordial follicles in the presence of activin  

Microsoft Academic Search

BACKGROUND: The objective of this study was to determine whether follicles grown within human ovarian cortical strip culture for 6 days in serum-free medium could be isolated at the secondary stage of pre-antral development and grown in vitro to the late pre-antral\\/early antral stage during a 4 day culture period. METHODS: Ovarian cortical biopsies were obtained from six women aged

Evelyn E. Telfer; Marie McLaughlin; Christina Ding; K. Joo Thong

2008-01-01

290

Blood culture cross contamination associated with a radiometric analyzer  

SciTech Connect

During a 9-day period in August 1980 in a New Jersey hospital, three pairs of consecutively numbered blood cultures from different patients were identified as positive for the same organism, for each pair, both cultures were positive in the same atmosphere, both organisms had the same sensitivities, and the second of each pair grew at least 2 days after the first and was the only positive blood culture obtained from the patient. When the hospital laboratory discontinued use of its radiometric culture analyzer for 15 days, no more consecutive pairs of positive cultures occurred. Subsequent use of the machine for 9 days with a new power unit but the original circuit boards resulted in one more similar consecutive pair (Staphylococcus epidermidis). After replacement of the entire power unit, there were no further such pairs. Examination of the machine by the manufacturer revealed a defective circuit board which resulted in inadequate needle sterilization. Laboratories which utilize radiometric analyzers should be aware of the potential for cross contamination. Recognition of such events requires alert microbiologists and infection control practitioners and a record system in the bacteriology laboratory designed to identify such clusters.

Griffin, M.R.; Miller, A.D.; Davis, A.C.

1982-04-01

291

Growth of Plant Cell Cultures. Iii. Growth Kinetics and Mass Culture.  

National Technical Information Service (NTIS)

Suspension cultures of bean and lettuce cells have been maintained by serial transfer for over three years. Such cultures may show exponential growth, although growth rates are low with doubling times of three to four days. These suspension cultures have ...

M. Mandels R. O. Matthern H. M. El-Bisi

1968-01-01

292

Differences in compliance with Surviving Sepsis Campaign recommendations according to hospital entrance time: day versus night.  

PubMed

INTRODUCTION: Higher compliance with Surviving Sepsis Campaign (SSC) recommendations has been associated with lower mortality. The authors evaluate differences in compliance with SSC 6-hour bundle according to hospital entrance time (day versus night) and its impact on hospital mortality. METHODS: Prospective cohort study of all patients with community-acquired severe sepsis admitted to the intensive care unit of a large university tertiary care hospital, over three and half years with a follow-up until hospital discharge. Time to compliance with each recommendation of the SSC 6-hour bundle was calculated according to hospital entrance period: day (8:30am to 8:30pm) vs. night (8:30pm to 8:30am). For the same periods, clinical staff composition and the number of patients attending the emergency department (ED) was also recorded. RESULTS: In this period 300 consecutive patients were included. Compliance rate was (night vs. day): serum lactate measurement 57% vs. 49% (p=0.171), blood cultures drawn 59% vs. 37% (p<0.001), antibiotics administration in the first three hours 33% vs. 18% (p=0.003), central venous pressure > 8 mmHg 45% vs. 29% (p=0.021) and central venous oxygen saturation (SvcO2) > 70%, 7% vs. 2% (p=0.082); fluids were administered in all patients with hypotension in both periods and vasopressors were administered in patients with hypotension not responsive to fluids in 100% vs. 99%. Time to get specific actions done was also different (night vs. day): serum lactate measurement (4.5 vs. 7h, p=0.018), blood cultures drawn (4 vs. 8h, p<0.001), antibiotic administration (5 vs. 8h, p<0.001), central venous pressure (8 vs. 11h, p=0.01) and SvcO2 monitoring (2.5 vs. 11h, p=0.222). The composition of the nursing team was the same around the clock; the medical team was reduced at night with a higher proportion of less differentiated doctors. The number of patients attending the ED was lower overnight. Hospital mortality rate was 34% in patients entering in the night period vs. 40% in those entering during day (p=0.281). CONCLUSION: Compliance with SSC recommendations was higher at night. A possible explanation might be the increased ratio nurse to patient in that period. Adjustment of the clinical team composition to the patients' demand is needed to increase compliance and improve prognosis. PMID:23618351

Almeida, Monica; Ribeiro, Orquidea; Aragao, Irene; Costa-Pereira, Altamiro; Cardoso, Teresa

2013-04-23

293

Periodicity analysis of movement recursions.  

PubMed

Many animals adaptively use their environments by adjusting how long and how often they use specific areas of their home range. Whereas questions about residence times have been addressed for a long time, the study of movement recursions has only recently received due interest. A key question concerns the potential periodicity of such recursions, as many potential drivers of movement behaviour such as light, climate or plant-herbivore interactions can be periodic. We propose here to build upon well-established Fourier and wavelet analyses to extract periodic patterns from time-series of presence/absence, arrival or departure from areas of interest, and introduce reliable null models for assessing the statistical significance of the periods detected. We provide an illustrative example which shows how an impala (Aepyceros melampus) expressed periodic use of the main open area of its home range. The significant periods found (12 h using arrival times; 24h, 7 days, and 30 days using presence/absence records) were consistent with a use of this area linked to predation and disturbance, as the area was used more at night, closer to dark moon, and during week-days. Our approach is a further step towards building up a wider analytical framework for the study of movement ecology. PMID:23108209

Riotte-Lambert, Louise; Benhamou, Simon; Chamaillé-Jammes, Simon

2012-10-26

294

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…

Rothenberg, Dianne

295

Popular culture as an ideological mask  

Microsoft Academic Search

This article examines the ability of modern forms of popular culture to capture and remake images of crime. This examination contrasts the role of the production and consumption of popular culture in two broad periods in the “long history” of popular culture: popular culture produced by the masses and mass-produced popular culture. This distinction is used to examine: (1) the

Michael J Lynch; Lenny A Krzycki

1998-01-01

296

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

297

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

298

Predictors of positive blood cultures in critically ill patients: a retrospective evaluation  

PubMed Central

Aim To identify predictors of bacteremia in critically ill patients, to evaluate the impact of blood cultures on the outcome, and to define conditions for breakthrough bacteremia despite concurrent antibiotic treatment. Methods A descriptive retrospective study was performed over a two-year period (2007-2008) in the medico-surgical Intensive Care Unit (ICU) of the San Giovanni Hospital in Bellinzona, Switzerland. Results Forty-five out of 231 patients (19.5%) had positive blood cultures. Predictors of positive blood cultures were elevated procalcitonin levels (>2 µg/L, P?43, P?=?0.014; Sequential Organ Failure Assessment >4.0, P?days, P?=?0.058), but their mortality was not different from patients without bacteremia. Fever (t?>?38.5°C) only showed a trend toward a higher rate of blood culture positivity (P?=?0.053). The rate of positive blood cultures was not affected by concurrent antibiotic therapy. Conclusions The prediction of positive blood culture results still remains a very difficult task. In our analysis, blood cultures were positive in 20% of ICU patients whose blood was cultured, and positive findings increased with elevated procalcitonin levels, liver failure, and higher severity scores. Blood cultures drawn >4 days after the start of antibiotic therapy and >5 days after surgery could detect pathogens responsible for a new infection complication.

Previsdomini, Marco; Gini, Massimiliano; Cerutti, Bernard; Dolina, Marisa; Perren, Andreas

2012-01-01

299

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. They provide a coordinated program of professional and compassionate supervised services for ...

300

Sundowning: Late-Day Confusion  

MedlinePLUS

... reprinted for personal, noncommercial use only. Sundowning: Late-day confusion By Mayo Clinic staff Original Article: http:// ... e-mail address Sign up Question Sundowning: Late-day confusion I've heard that sundowning may happen ...

301

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.

Corradino, R. A.

1973-01-01

302

Carbonyl compounds in the ambient air of hazy days and clear days in Guangzhou, China  

Microsoft Academic Search

Carbonyl compounds were measured in ambient air of Guangzhou in both hazy and clear days. Air samples were collected in two separate terms, 17–19th of November (the clear period) and 30th of November to 2nd of December 2005 (the hazy period). The total concentrations of carbonyls detected varied from 48.4 to 121.4 µg m?3 (with a mean of 92.0 µg m?3) in

Huixiong Lü; Quan-Ying Cai; Sheng Wen; Yuguang Chi; Songjun Guo; Guoying Sheng; Jiamo Fu; Blanca Antizar-Ladislao

2009-01-01

303

Morphological and functional consequences of chronic epilepsy in rat hippocampal slice cultures  

Microsoft Academic Search

We have developed an in vitro model of chronic epilepsy in order to study the consequences of prolonged periods of epileptic activity. After applying the convulsants bicuculline and\\/or picrotoxin to mature rat hippocampal slice cultures for 3 days, large numbers of swollen and vacuolated cells were observed throughout all hippocampal subfields. The number of dendritic spines of pyramidal cells was

Michael Miiller

1993-01-01

304

The detection of in vivo hematotoxicity of benzene by in vitro liquid bone marrow cultures  

SciTech Connect

Bone marrow toxicity induced by benzene inhalation was investigated in mice using an in vitro bone marrow culture system and a bioassay for leukemia. Donor animals (6-week-old female C57B1/6J) were exposed to 400 ppm benzene 6 hr/day for either 9 days (5 days/week) or for 11 consecutive days. Cell suspensions from long-term bone marrow cultures established from benzene-exposed mice showed a progressive reduction in the number of spleen colony-forming cells (the hematopoietic stem cell) compared to control. Different combinations of adherent cell layers and reinoculated cells showed that cultures containing bone marrow cells from benzene-exposed mice had a lower capacity to maintain stem cell proliferation than normal combinations irrespective of whether benzene-exposed marrow was in the adherent cell layers or reinoculated cells. These results indicate that benzene inhalation produces stem cell injury leading to diminished self-replication and derangement of the adherent marrow population. Bone marrow cultures from benzene-treated mice did not develop detectable transformation in vitro throughout the culture period. Neonatal mice inoculated with cultured cells from benzene-exposed mice have not developed leukemia during an 8-month period after inoculation.

Harigaya, K.; Miller, M.E.; Cronkite, E.P.; Drew, R.T.

1981-09-15

305

Loofa sponge as a scaffold for culture of rat hepatocytes.  

PubMed

The dried fruit from Luffa cylindrica (loofa sponge, LS), which represents a new chitinous source material, was used as a 3-D scaffold for the culture of rat hepatocytes. With the macroporous structure and large pore size (ca. 800 microm) of LS, cell loading to the scaffold should be carried out by dynamic seeding with continuous shaking throughout the seeding period. Hepatocytes attach well to the surface of loofa fibers after seeding and maintain their round shapes. The initial ammonia removal and urea-N synthesis rates of hepatocytes immobilized within LS slightly decreased with increasing cell densities, but their metabolic activities were comparable to or better than those in monolayer culture on tissue culture polystyrene control surfaces. Both urea-N synthesis and albumin secretion rates could be maintained up to 7 days for cells immobilized within LS and spheroid-like cell aggregates could be found after the second day. PMID:15903271

Chen, Jyh-Ping; Lin, Tsung-Cheng

306

Family Day Care Licensing Study.  

ERIC Educational Resources Information Center

The 1990 Family Day Care Licensing Study provides the results of a nationwide survey of state regulatory agencies that was conducted to update family day care licensing information last collected in 1989. As in past years, the study includes an in-depth examination of regulatory requirements for large family day care homes. The study has been…

Children's Foundation, Washington, DC.

307

A critical period for functional vestibular development in zebrafish.  

PubMed

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. PMID:11836792

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

2002-03-01

308

Ethanol withdrawal upregulates kainate receptors in cultured rat hippocampal neurons  

Microsoft Academic Search

We have previously demonstrated that kainate receptors (KA-Rs) are acutely inhibited by ethanol (EtOH). Here we show that KA-Rs are also affected by long-term EtOH exposure. Whole-cell recordings of pharmacologically isolated KA-R-mediated currents in cultured hippocampal neurons revealed that exposure to 80 mM EtOH for 3 days followed by a 24 h withdrawal period increased KA-R current densities. Quantitative confocal

Mario Carta; Dorian S Olivera; Todd S Dettmer; C. Fernando Valenzuela

2002-01-01

309

Embryotoxicity study of ginsenoside Rc and Re in in vitro rat whole embryo culture  

Microsoft Academic Search

Background: Pregnant women commonly consume ginseng. However, there is little data concerning the effects of ginseng on early pregnancy. Methods: Rat embryos were exposed in vitro to different concentrations of Rc and Re from day 9.5 to day 11.5 after conception. Embryos were scored for growth and differentiation at the end of the culture period. Results: Embryos exposed to 50.0?g\\/ml

Louis Y. Chan; Pui Y. Chiu; Tze K. Lau

2004-01-01

310

Forecasting October-November Caribbean hurricane days  

NASA Astrophysics Data System (ADS)

October-November Caribbean hurricane activity can have profound impacts on the region through loss of life and devastation of property. Large-scale climate parameters associated with active late seasons in the Caribbean are investigated in this paper. Among the primary features that are noted are atmospheric and oceanic conditions typical of La Niña and a larger-than-normal Atlantic Warm Pool as well as reduced trade wind strength in the western tropical Atlantic. A two-predictor statistical model has been developed to forecast the number of hurricane days in the Caribbean during October-November. The first predictor is the July-September-averaged Nino 3.4 index, a measure of El Niño-Southern Oscillation, while the second predictor measures July-September-averaged sea surface temperatures in the western part of the tropical Atlantic extending into the Caribbean, which very closely correlates with the size of the Atlantic Warm Pool. These two predictors can hindcast approximately 58% of the variance in the number of October-November Caribbean hurricane days over the period from 1982 to 2010 when a drop-one cross validation procedure is applied. The predictors also correlate significantly with physical features in the Caribbean basin that are known to impact tropical cyclones. While these strong correlations between predictors and physical features extend back to an independent period from 1900 to 1981, the correlations between individual predictors and October-November hurricane days degrade considerably during the earlier period.

Klotzbach, Philip J.

2011-09-01

311

The period of RU Sextantis  

NASA Astrophysics Data System (ADS)

The variable star RU Sextantis (BV 715, BD -6° 2990) was discovered at Barnberg and reported to be an eclipsing binary of Beta Lyr type with a period of 13.07 days and magnitude range of 10.6-11.4 ptg (Strohmeier et al. 1965). Although the system would be of considerable interest if it were indeed so similar to Beta Lyrae in period and depth of eclipses, the star was neglected until a study by Brelstaff and Isles (1986), based on 57 visual estimates. They concluded that RU Sex is probably an RR Lyr variable with a period of 0.5398 day and a small visual range of about magnitude 10.5-10.9.

Williams, David B.

312

The Mass Culture of Porphyridium cruentum  

PubMed Central

A study was made of the effect of temperature, detention period, light intensity, and salinity on the growth rate and over-all light energy conversion efficiency of Porphyridium cruentum cultured on a medium consisting of concentrated sea water and sewage enriched with urea, chelated iron, and other additives. It was found that the optimal temperature was within the range of 21 to 26 C. Growth was retarded at temperatures less than 13 C, and completely inhibited above 31 C. Over-all light energy conversion efficiency increased from 2.24% at the 4-day detention period to 2.76% at the 10-day period. Conversion efficiency ranged from 5.8% at a light energy absorption rate of 8.2 cal:liter:min to 2.3% at 35 to 39 cal:liter:min. At salt concentrations less than 3.5%, Porphyridium could not successfully compete with other algae in open cultures. Salt concentrations as high as 4.6% had no inhibitory effect on its growth. In studies on nutrition, it was found that growth on a medium of salts used in formulating synthetic sea water dissolved in sewage was equal to that on a control medium consisting of concentrated sea water and sewage (see above). They showed that sewage contains a substance or substances essential for optimal growth. Vitamin B12 alone could not substitute for it. Images FIG. 1

Golueke, Clarence G.; Oswald, William J.

1962-01-01

313

Cultural Characteristics of Shimizuomyces paradoxus Collected from Korea  

PubMed Central

This study investigated the cultural characteristics of Shimizuomyces paradoxus in different nutritional and environmental conditions. The highest mycelial growth was observed in Schizophyllum (mushroom) genetics complete medium plus yeast extract agar medium, and the optimal temperature and pH were 25? and pH 8.0, respectively. The optimal carbon and nitrogen sources were 1% dextrose and 1% peptone in agar. However, in liquid culture the highest dry mycelium weight was found for the potato dextrose agar and potato sucrose agar broths. The optimum inoculum size was five mycelial discs (5 mm) per 100 mL of broth, and the optimum liquid culture period was 25 days. This is the first ever report of S. paradoxus cultural characteristics.

Sung, Gi-Ho; Shrestha, Bhushan; Park, Ki-Byung

2010-01-01

314

42 CFR 408.8 - Grace period and termination date.  

Code of Federal Regulations, 2012 CFR

... false Grace period and termination date. 408.8 Section...408.8 Grace period and termination date. (a) Grace period...a nonwork day for Federal employees, the grace period is extended...succeeding work day. (c) Termination date. The end of the...

2012-10-01

315

Procedures and Practices for Day-to-Day Operation.  

National Technical Information Service (NTIS)

This lecture deals with problems of safe plant operation under day-to-day conditions. Operation, maintenance and surveillance have to be organized in a preventive manner. It will be shown that nearly all expected jobs and proceedings can be done rule-base...

K. Distler

1986-01-01

316

Endogenous amyloidogenesis in long-term rat hippocampal cell cultures  

PubMed Central

Background Long-term primary neuronal cultures are a useful tool for the investigation of biochemical processes associated with neuronal senescence. Improvements in available technology make it possible to observe maturation of neural cells isolated from different regions of the rodent brain over a prolonged period in vitro. Existing experimental evidence suggests that cellular aging occurs in mature, long-term, primary neuronal cell cultures. However, detailed studies of neuronal development in vitro are needed to demonstrate the validity of long-term cell culture-based models for investigation of the biochemical mechanisms of in vitro neuronal development and senescence. Results In the current study, neuron-enriched hippocampal cell cultures were used to analyze the differentiation and degeneration of hippocampal neurons over a two month time period. The expression of different neuronal and astroglial biomarkers was used to determine the cytochemical characteristics of hippocampal cells in long-term cultures of varying ages. It was observed that the expression of the intermediate filament nestin was absent from cultures older than 21 days in vitro (DIV), and the expression of neuronal or astrocytic markers appeared to replace nestin. Additionally, morphological evaluations of neuronal integrity and Hoescht staining were used to assess the cellular conditions in the process of hippocampal culture development and aging. It was found that there was an increase in endogenous production of A?1-42 and an increase in the accumulation of Congo Red-binding amyloidal aggregates associated with the aging of neurons in primary culture. In vitro changes in the morphology of co-existing astrocytes and cell culture age-dependent degeneration of neurodendritic network resemble features of in vivo brain aging at the cellular level. Conclusion In conclusion, this study suggests that long-term primary CNS culture is a viable model for the study of basic mechanisms and effective methods to decelerate the process of neuronal senescence.

2011-01-01

317

Skin culture  

MedlinePLUS

... culture if the sample involves the mucous membranes . See also: Herpes culture ... There is no preparation needed for a culture. For information on how to prepare for a skin or mucosal sample, see: Skin lesion biopsy Gum biopsy

318

Survival and growth of goat primordial follicles after in vitro culture of ovarian cortical slices in media containing coconut water.  

PubMed

The development of culture systems to support the initiation of growth of primordial follicles is important to the study of the factors that control the earliest stages of folliculogenesis. We investigated the effectiveness of five culture media, two supplements and three culture periods on the survival and growth of goat primordial follicles after culturing ovarian cortex. The media were based on minimal essential minimum (MEM) and coconut water solution (CWS) added in the proportion of 0, 25, 50, 75 or 100%. The two supplements were none versus supplemented with insulin-transferrin-selenium, pyruvate, glutamine, hypoxanthine, and BSA. Pieces of goat ovarian cortex were cultured in the media for 1, 3 or 5 days and representative samples were evaluated at day 0 as non-cultured controls. The replicates were the two ovaries of five mixed breed goats. The number of primordial, intermediate, primary and secondary follicles at each period of culture and the number of degenerated follicles were evaluated. Mitotic activity of granulosa cells was studied by immunolocalization of proliferating cell nuclear antigen (PCNA). The number of follicles in each stage and degenerated follicles were statistically analyzed by ANOVA using a factorial design and the significance of differences assessed using Tukey test. Chi-square test was used to compare the percentage of follicles with PCNA positive granulosa cells. As the culture period progressed, the number of primordial follicles fell and there was a significant increase in the number of primary follicles. The fall in the number of primordial follicles was particularly marked after 1 day culture. No effect of media on the number of primordial and primary follicles was observed after culture, but MEM as well as supplements increased the number of intermediate follicles. Follicular degeneration was kept at the same level after culture in the media tested, except for pure CWS that increased the number of degenerated follicles. In contrast, addition of supplements to culture media reduced follicular degeneration. In non-cultured tissue, PCNA was expressed in granulosa cells of 31.6% of the growing follicles. This percentage had not significantly changed after 5 days culture in the various media, indicating the maintenance of proliferation activity of granulosa cells during culture. In conclusion, it is shown that goat primordial follicles may be successfully activated after in vitro culture in all media tested. However, when pure CWS is used the follicular degeneration is enhanced, but the addition of supplements to culture media decrease follicular degeneration. PMID:14998653

Silva, José R V; van den Hurk, Robert; Costa, Sonia H F; Andrade, Evelyn R; Nunes, Ana P A; Ferreira, Francisco V A; Lôbo, Raimundo N B; Figueiredo, José R

2004-04-01

319

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

320

Day-Case Laparoscopic Nissen Fundoplication  

PubMed Central

Introduction: For day-case laparoscopic surgery to be successful, patient selection is of the utmost importance. This study aimed to assess the feasibility of day-case laparoscopic Nissen fundoplication and to identify factors that may lead to readmission and overstay. Methods: A retrospective review of all patients who underwent day-case laparoscopic Nissen fundoplication over a 4-year period (2006 through 2010) was undertaken. Patient age, social circumstances, and other demographics were recorded as well as any comorbidities and ASA score. The primary endpoint measured was rate of readmission and overstay. Results: A total of 72 patients fulfilled the inclusion criteria for day-case surgery. Five patients (6.94%) required admission immediately following the procedure, ie, overstayed or were readmitted. The rates were 1.38% (P=.05, CI 95%) for readmission and 5.55% (P=.05, CI 95%) for overstay. Six (8.33%) patients were classified as ASA III, and 3 (50%) were readmitted or overstayed. Conclusion: Day-case laparoscopic Nissen fundoplication is a feasible, safe option. The authors conclude that ASA score of III and increasing age correlate with an increasing incidence of overstay and readmission. Therefore, we would recommend the use of integrated pathways and advanced planning to reduce these rates.

Stephens, L.

2012-01-01

321

Day Care Center Enrichment Program.  

ERIC Educational Resources Information Center

|This guide to a West Virginia Department of Welfare project for upgrading the quality of day care centers throughout the state presents samples of the forms used in the program, accompanied by a brief description of the program's format, requirements and procedures. The Day Care Center Enrichment Program provides a monetary incentive for…

West Virginia State Dept. of Welfare, Charleston.

322

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.

323

Day Care Center Enrichment Program.  

ERIC Educational Resources Information Center

This guide to a West Virginia Department of Welfare project for upgrading the quality of day care centers throughout the state presents samples of the forms used in the program, accompanied by a brief description of the program's format, requirements and procedures. The Day Care Center Enrichment Program provides a monetary incentive for…

West Virginia State Dept. of Welfare, Charleston.

324

Celebrate International School Library Day  

ERIC Educational Resources Information Center

The Fourth Monday in October is International School Library Day (ISLD)--an opportunity for school libraries around the world to celebrate the contribution they make to the education of the children in their care. International School Library Day was proclaimed in 1999 by Dr Blanche Woolls, president of the International Association of School…

Braxton, Barbara

2004-01-01

325

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.

326

Cool Site of the Day  

NSDL National Science Digital Library

Need a daily web fix of something new? Try The Cool Site of the Day. Every night at midnite the Cool Site of the Day gets set to point at a new Cool Site. You'll never know what's there until you take the link so expect to be surprised.

327

3 CFR 8338 - Proclamation 8338 of January 13, 2009. Religious Freedom Day, 2009  

Code of Federal Regulations, 2010 CFR

...with oneâs conscience. Religious Freedom Day is an opportunity to celebrate our legacy of religious liberty, foster a culture of tolerance and peace, and renew commitments...proclaim January 16, 2009, as Religious Freedom Day. I call on...

2010-01-01

328

33 CFR 117.881 - John Day River.  

Code of Federal Regulations, 2013 CFR

...However, the draw shall open promptly on signal from four hours before to four hours after each day's authorized commercial fishing period established by the Columbia River Compact (Washington State Department of Fisheries and the Fish...

2013-07-01

329

Metabolic Aspects of Acute Starvation in Normal Humans (10 Days).  

National Technical Information Service (NTIS)

The effects of starvation were evaluated on six, normal, healthy adults, during a 10 day period of complete fasting. The major problems encountered, under conditions of no mineral supplementation, were (a) highly negative water balances resulting in body ...

C. F. Consolazio L. O. Matoush H. L. Johnson R. A. Nelson H. J. Krzywicki

1966-01-01

330

Two-dimensional cell sheet manipulation of heterotypically co-cultured lung cells utilizing temperature-responsive culture dishes results in long-term maintenance of differentiated epithelial cell functions  

Microsoft Academic Search

Here we report two-dimensional cell sheet manipulation (2D CSM) of heterotypically co-cultured lung cell sheets and the maintenance of differentiated phenotypes of lung epithelial cells over prolonged periods of up to 70 days. This was facilitated by poly(N-isopropylacrylamide) (PIPAAm)-grafted tissue culture dishes. PIPAAm-grafted dishes are responsive to temperature changes and offer a unique surface on which cells adhere and multiply

Maya A. Nandkumar; Masayuki Yamato; Ai Kushida; Chie Konno; Motohiro Hirose; Akihiko Kikuchi; Teruo Okano

2002-01-01

331

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.

2012-01-01

332

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.

McDonald, Terence F.; DeHaan, Robert L.

1973-01-01

333

[October 4: World Housing Day].  

PubMed

World Housing Day will be celebrated October 4th, 1993. Its theme this year is women and housing development. Its purpose is to promote the recognition of women as active partners in the development of human establishments. World Housing Day is celebrated every year on the first Monday of October. The UN's Organization for Human Establishments, based in Nairobi, Kenya, organizes this day. The objective of this annual presentation is to attract the attention of the entire world to the importance of housing, which plays a determining role in health, productivity, and the feeling of social well-being. PMID:12318648

1993-08-01

334

National Mole Day Foundation, Inc.  

NSDL National Science Digital Library

"Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates Avogadro's Number (6.02 x 10^23), which is a basic measuring unit in chemistry." This website presents the National Mole Day Foundation, Inc.'s actions to get everyone, especially children, excited about chemistry. Users can learn about activities held throughout the United States and the world including the next Mole day breakfast held on April 3, 2004. The website features many awards to worthy teachers and schools. Interested teachers and students can learn how to become involved in this fun, educational organization.

335

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

336

Familial Periodic Paralyses  

MedlinePLUS

NINDS Familial Periodic Paralyses Information Page Synonym(s): Periodic Paralyses Table of Contents (click to jump to sections) What are Familial Periodic Paralyses? Is there any treatment? What is the prognosis? What research is ...

337

Leadership Development for Cross-Cultural Understanding.  

ERIC Educational Resources Information Center

A 10-day seminar of 30 graduate and undergraduate students from 16 countries explored methods for building cross-cultural understanding and developing personal leadership skills through using the Kolb learning cycle to learn about other cultures. (DB)

Sisk, Dorothy A.

1988-01-01

338

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.

Yagupsky, P

1994-01-01

339

Child Care Services: Day Care.  

National Technical Information Service (NTIS)

This bibliography on child day care services provides abstracts of 45 documents from the Project SHARE collection. The bibliography includes books, technical reports, journal articles, and a multimedia program. Most of the documents were published between...

1981-01-01

340

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

341

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.

2007-02-17

342

STS-70 flight: Day 6  

NASA Astrophysics Data System (ADS)

The sixth day of the STS-70 Space Shuttle Discovery mission is featured on this video. During another trouble-free day, the crew again performed a variety of experiments ranging from optical studies to biological investigations. One such biological experiment showed orange colon cancer cells coalescing into globules. Using the Hercules Camera, the crew shot film footage of the Earth's surface and during the Windex experiment, several views of the Shuttle were shown.

1995-07-01

343

STS-73 flight day 16  

NASA Astrophysics Data System (ADS)

On this last 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 preparing the United States Microgravity Lab-2 (USML-2) and the shuttle for return to Earth. There is footage of the shuttle from the robot arm cameras and of Earth. Earth views include cloud cover, various land masses, mountain ranges, and oceans.

1995-11-01

344

STS-73 flight day 13  

NASA Astrophysics Data System (ADS)

On this thirteenth 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 included the Drop Physics Module (DPM) experiment, human physiological experiments, and a Crystal Gel experiment.

1995-11-01

345

The incubation periods of Dengue viruses.  

PubMed

Dengue viruses are major contributors to illness and death globally. Here we analyze the extrinsic and intrinsic incubation periods (EIP and IIP), in the mosquito and human, respectively. We identified 146 EIP observations from 8 studies and 204 IIP observations from 35 studies. These data were fitted with censored Bayesian time-to-event models. The best-fitting temperature-dependent EIP model estimated that 95% of EIPs are between 5 and 33 days at 25°C, and 2 and 15 days at 30°C, with means of 15 and 6.5 days, respectively. The mean IIP estimate was 5.9 days, with 95% expected between days 3 and 10. Differences between serotypes were not identified for either incubation period. These incubation period models should be useful in clinical diagnosis, outbreak investigation, prevention and control efforts, and mathematical modeling of dengue virus transmission. PMID:23226436

Chan, Miranda; Johansson, Michael A

2012-11-30

346

What is the incubation period for listeriosis?  

PubMed Central

Background Listeriosis is a foodborne infection with a low incidence but a high case fatality rate. Unlike common foodborne diseases, the incubation period can be long. The first incubation periods were documented during a large listeriosis outbreak published in 1987 by Linnan and al. in the New England Journal of Medicine (range: 3 days to 70 days). Data on the incubation period of listeriosis are scarce. Our study aim was to estimate precisely the incubation period of listeriosis using available data since 1987. Methods We estimated the incubation period of listeriosis using available published data and data from outbreak investigations carried out by the French National Institute for Public Health Surveillance. We selected cases with an incubation period calculated when a patient had a single exposure to a confirmed food source contaminated by Listeria monocytogenes. Results We identified 37 cases of invasive listeriosis (10 cases with central nervous system involvement (CNS cases), 15 bacteraemia cases and 12 pregnancy-associated cases) and 9 outbreaks with gastroenteritis. The overall median incubation period of invasive listeriosis was 8 days (range: 1–67 days) and differed significantly by clinical form of the disease (p<0.0001). A longer incubation period was observed for pregnancy-associated cases (median: 27.5 days; range: 17–67 days) than for CNS cases (median: 9 days; range: 1–14 days) and for bacteraemia cases (median: 2 days; range: 1–12 days). For gastroenteritis cases, the median incubation period was 24 hours with variation from 6 to 240 hours. Conclusions This information has implications for the investigation of food borne listeriosis outbreaks as the incubation period is used to determine the time period for which a food history is collected. We believe that, for listeriosis outbreaks, adapting the exposure window for documenting patients’ food histories in accordance with the clinical form of infection will facilitate the identification of food products as the source of contamination. We therefore propose to take an exposure window of 14 days before the diagnosis for CNS and bacteraemia cases, and of 6 weeks before the diagnosis, for pregnancy-associated cases.

2013-01-01

347

The effect of electromagnetic radiation from the Skrunda Radio Location Station on Spirodela polyrhiza (L.) Schleiden cultures  

Microsoft Academic Search

The effect of electromagnetic radiation from the Skrunda Radio Location Station was studied on the vegetative growth and morphology of the duckweed Spirodela polyrhiza (L.) Schleiden plant in the next generation. The impact of plant development stage and length of the exposure period were examined. The effect of short-term (5-day) exposures of Spirodela cultures depended on the stage of development

I. Magone

1996-01-01

348

Induction of geranylgeranyl diphosphate synthase activity and taxane accumulation in Taxus baccata cell cultures after elicitation by methyl jasmonate  

Microsoft Academic Search

The results presented in this paper describe for the first time the presence of an inducible enzyme in the biosynthetic pathway leading to the anticancer drug paclitaxel. Methyl jasmonate, when administered to Taxus baccata cell suspension cultures, was found to rapidly induce geranylgeranyl diphosphate (GGPP) synthase activity. Experiments showed that after elicitation at day 7 of the subculturing period, the

Gregory Laskaris; Mina Bounkhay; Georgios Theodoridis; Robert van der Heijden; Rob Verpoorte; Mondher Jaziri

1999-01-01

349

The Rotation Period of 913 Otila  

NASA Astrophysics Data System (ADS)

Images of 913 Otila were taken by the NF/ Observatory, New Mexico, during June and July, 2007. Lightcurve analysis narrowed the rotational period determination to an integer divisor of 1.005 days. The most likely rotational period appears to be 0.20100 ± 0.00001 days, or 4.8024 ± 0.0002 hours. Peak to peak amplitude was 0.47 magnitude.

Schiller, Quintin; Lacy, Sandberg, Claud H.

2008-06-01

350

A comparison study on airborne particles during haze days and non-haze days in Beijing.  

PubMed

Airborne particles in Beijing during haze days and non-haze days were collected by an eleven-stage cascade impactor (MOUDI 110, MSP, USA), and the mass concentrations and water soluble inorganic ions of the size segregated airborne particles were quantitatively analyzed. PM10 concentrations during haze days ranged from 250.5 to 519.4 ?gm(-3) which were about 3-8 times greater than those (ranged from 67.6 to 94.0 ?gm(-3)) during non-haze days, and PM1.8 concentrations during haze periods were in the range of 117.6-378.6 ?gm(-3) which were 3-14 times higher than those (27.0 to 36.8 ?gm(-3)) during non-haze days. In comparison with non-haze days, all water soluble inorganic ions investigated in the airborne particles greatly enhanced during haze days. NH?(+), NO?(-) and SO?(2-) were found to be the dominant water soluble inorganic ions, accounting for 91-95% of the total inorganic ions in PM1.8 during haze days, and 73-81% during non-haze days. The size distributions of SO?(2-), NO?(-), Cl(-), K(+) and Na(+) exhibited bimodal types, while single mode was found for NH?(+), Ca(2+) and Mg(2+). Only with exception of Ca(2+) and Mg(2+), all ions were concentrated in fine particles around 0.56-1.0 ?m of "droplet mode" during haze days, while 0.32-0.56 ?m of "condensation mode" during non-haze days. The extremely high mole ratio (>2) of [NH4(+)]/[SO?(2-)] during haze days implied that the main form of ammonium in PM1.8 might be (NH4)?SO? and NH?NO?. The mass ratio of NO?(-)/SO?(2-) was >1 in PM1.8 during haze days and ~1 during non-haze days, indicating that NOx from the vehicle exhaust in Beijing is playing more and more important role on fine particle formation. PMID:23583755

Sun, Zhenquan; Mu, Yujing; Liu, Yanju; Shao, Longyi

2013-04-09

351

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

352

Cultural industries and cultural policy  

Microsoft Academic Search

This article analyses and contextualises a variety of relationships between the cultural industries and cultural policy. A principal aim is to examine policies which are explicitly formulated as cultural (or creative) industries policies. It seeks to address questions such as: what lies behind such policies? How do they relate to other kinds of cultural policy, including those more oriented towards

David Hesmondhalgh; Andy C. Pratt

2005-01-01

353

Production of germline chimeras by transfer of chicken gonadal primordial germ cells maintained in vitro for an extended period  

Microsoft Academic Search

We previously reported that germline chimeras could be produced by transfer of chicken gonadal primordial germ cells (gPGCs) cultured for a short term (5 days). This study was subsequently undertaken to examine whether gPGCs maintained in vitro for an extended period could retain their specific characteristics to induce germline transmission. Chicken (White Leghorn, WL) gPGCs were retrieved from embryos at

Jae Yong Han; Tae Sub Park; Yeong Ho Hong; Dong Kee Jeong; Jin Nam Kim; Ki Dong Kim; Jeong Mook Lim

2002-01-01

354

Effect of medium osmotic potential on callus induction and shoot regeneration in flax anther culture.  

PubMed

Development of an efficient and cost-effective doubled haploid production system in flax (Linum usitatissimum L.) is the prerequisite for the application of doubled haploid technology in a practical breeding program. Pre-culture of anthers on a medium containing 15% sucrose for 2-7 days before transfer to the same medium containing 6% sucrose for a total of 28 days culture period significantly increased shoot regeneration for all four genotypes evaluated. Moreover, pre-culture of anthers on medium containing 15% sucrose for 2-7 days was sufficient to dramatically reduce the frequency of shoot regeneration from somatic tissues and thereby to increase the frequency of microspore-derived plants in flax anther culture. Furthermore, replacing 15% sucrose with 6% sucrose and 9% polyethylene glycol (PEG), or 3% sucrose and 12% PEG, in pre-culture medium did not significantly affect callus induction and shoot regeneration. The results indicate that sucrose may act as carbon/energy source as well as an osmotic regulator in flax anther culture. Sucrose as an osmotic regulator may be replaced by a non-metabolizable osmoticum: PEG. The implication of this study in flax anther culture and breeding is discussed. PMID:15235814

Chen, Yurong; Dribnenki, Paul

2004-07-02

355

Day Camp Manual: The Day Camper. Book III.  

ERIC Educational Resources Information Center

The third book in a 5-book manual on day camping discusses the campers themselves. Section I provides a case study of the pre-school camper and the counselor. Section II addresses the needs and characteristics of children from ages 6-12 and describes what children need from parents, teachers, playmates, and community. Section III discusses the…

Babcock, William

356

Starting a Day Care Center: The Day Care Center Handbook.  

ERIC Educational Resources Information Center

Designed to be of help to individuals and groups seeking to establish a day care center in the metropolitan St. Louis area, this manual calls attention to important and basic information which must be taken into account if planning is to produce tangible results. Following a brief section defining commonly used terms referring to organized…

Checkett, Donald

357

Starting a Day Care Center: The Day Care Center Handbook.  

ERIC Educational Resources Information Center

|Designed to be of help to individuals and groups seeking to establish a day care center in the metropolitan St. Louis area, this manual calls attention to important and basic information which must be taken into account if planning is to produce tangible results. Following a brief section defining commonly used terms referring to organized…

Checkett, Donald

358

Observations of day-to-day variability in the meridional semi-diurnal tide at 70 deg N  

NASA Astrophysics Data System (ADS)

Measurements of plasma velocity along the magnetic field line by EISCAT provide an estimate of the meridional neutral wind in the E-region. During March and April 1988 such observations were made during the pre-midnight period on fourteen separate evenings and the results were used to fit the amplitude and phase of the semidiurnal component of neutral velocity between 100 and 160 km altitude. Large variations in the dominating tidal modes were observed from day to day, during geomagnetically active periods. Smaller changes were observed during five successive days of quiet geomagnetic conditions. The most stable feature was found to be the phase at 110 km; on 10 out of 14 cases studied the maximum southward velocity was encountered at 1800 LT to within 30 minutes. On three successive days a phase-height variation corresponding to the (2,4) tidal mode dominated below 130 km with phase varying less than ten minutes from day-to-day, and the phase-height variation of the (2,2) mode was observed above 130 km. These observations indicate the presence of a stable tidal oscillation. However, even then the amplitude changed from day to day, which is explained as a modulation produced by a planetary wave having a two-day period.

Huuskonen, A.; Virdi, T. S.; Jones, G. O. L.; Williams, P. J. S.

1991-06-01

359

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.

360

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.

Ames, Daniel L.; Fiske, Susan T.

2013-01-01

361

National Election Day Exit Poll  

NSDL National Science Digital Library

Full dataset, in pdf, SPSS, or ASCII file, giving the results from two 2008 election polls, one an exit poll, one a telephone survey conducted in final weeks before the election. Data are for the respondents choice for president as well as a host of issue-based and ethno-cultural questions that might determine voting behavior. The relationships in the dataset could be examined for education or professional research purposes.

Connecticut, Roper C.

362

STS-73 flight day 10  

NASA Astrophysics Data System (ADS)

On this tenth 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 Surface Tension Driven Convection Experiment (STDCE), the Drop Physics Module (DPM) experiment, and the Geophysical Fluid Flow Cell Experiment (GFFC). All experiment imagery was downlinked from the shuttle to Mission Control using the High-Packed Digital Television (HI-PAC) system.

1995-10-01

363

STS-73 flight day 11  

NASA Astrophysics Data System (ADS)

On this eleventh 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 included the Drop Physics Module (DPM) and the Surface Tension Driven Convection Experiment (STDCE). Thermistors are used in the STDCE to study the fluid dynamics behind particle motion.

1995-10-01

364

STS-73 flight day 9  

NASA Astrophysics Data System (ADS)

On this ninth 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 Surface Tension Driven Convection Experiment (STDCE) and the Protein Crystal Growth (PCG) experiment with different types of solution mixtures used. The imagery of the experiments inside the Spacelab were downlinked to Mission Control with the High-Packed Digital Television (HI-PAC) system.

1995-10-01

365

STS-73 flight day 12  

NASA Astrophysics Data System (ADS)

On this twelfth 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 included the Drop Physics Module (DPM) experiment, the Surface Tension Driven Convection Experiment (STDCE), and the Astroculture (tm)(ASC) demonstration. Rominger was interviewed by a Colorado radio news show and asked questions about the mission and living in space. Earth views included cloud cover.

1995-10-01

366

STS-73 flight day 7  

NASA Astrophysics Data System (ADS)

On this seventh 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 included the Surface Tension Driven Convection Experiment (STDCE), the Drop Physics Module (DPM), the Protein Crystal Growth (PCG) experiment, and the Glovebox (GBX) demonstration. All the experiments were monitored by the High-Packed Digital Television (HI-PAC) system onboard the shuttle.

1995-10-01

367

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

368

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.

369

Experiments for a Special Day  

ERIC Educational Resources Information Center

Special events like science days, teacher's meetings and physics recruiting efforts require spectacular and, if possible, interactive experiments for the audience. Based on past experience with such events, we have gathered and present here a series of demonstration experiments in mechanics, optics, waves and electricity which are suitable, and…

Gluck, Paul

2008-01-01

370

Experiments for a Special Day  

ERIC Educational Resources Information Center

|Special events like science days, teacher's meetings and physics recruiting efforts require spectacular and, if possible, interactive experiments for the audience. Based on past experience with such events, we have gathered and present here a series of demonstration experiments in mechanics, optics, waves and electricity which are suitable, and…

Gluck, Paul

2008-01-01

371

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…

Robeck, Edward

2011-01-01

372

Counseling the modern day pharisee  

Microsoft Academic Search

The scope of this paper is to provide the reader with an understandable definition of the term “Pharisee” and compare the Pharisees of biblical times to those who exhibit the came characteristic today. I plan to accomplish this by not only defining a Pharisee in these modern days, but also to amplify the definition using today’s churches and today’s church

Harvey Jones

2006-01-01

373

NASA's Earth Day Video Contest  

NASA Video Gallery

Everyone knows NASA as the space exploration agency. It's easy to forget that exploring Earth is also exploring a celestial body. It is, in fact, the only planet we've ever been to -- our Home Frontier. To learn about NASA's Earth Day video contest, visit: http://www.nasa.gov/topics/earth/features/earth-videos.html

gsfcvideo

2011-04-21

374

100th Day of School  

NSDL National Science Digital Library

This FAQ page from the Teacher2Teacher service at The Math Forum @ Drexel contains links to many resources offering ideas for celebrating the 100th Day of School. Resources include T2T discussions, children's literature, teacher resource books, and web sites.

2002-01-01

375

Day-case cataract surgery.  

PubMed Central

The results of 501 day-case cataract extractions are presented. This is a safe way to manage an operation for which there will be an increased demand. Only 13% of these patients stated that they would have preferred to stay in hospital after surgery.

Ingram, R M; Banerjee, D; Traynar, M J; Thompson, R K

1983-01-01

376

Day of the Killer Tornadoes.  

National Technical Information Service (NTIS)

Presents the story of the day 147 deadly twisters swept through Ohio, Kentucky, and Alabama. The funnels devestated large portions of 11 states, killing 307 people in the U.S. and 8 more in Canada. Includes extensive footage of the tornadoes actually stri...

1978-01-01

377

United Nations Day, 24 October.  

ERIC Educational Resources Information Center

|Serving as the journal of the Manitoba Social Science Teachers' Association, this issue commemorates United Nations Day with the editorial, "Teaching about the United Nations" (Ken Osborne). Another article devoted to the international organization is "The United Nations and International Peace and Security" (Ken Osborne). The article is intended…

Osborne, Ken, Ed.

1993-01-01

378

A Day in the Life...  

ERIC Educational Resources Information Center

These nine articles present narrative accounts of typical days in the working life of school librarians from all over the world. Includes school librarians, teacher-librarians, network librarians, Peace Corps volunteers, and Webmasters, as well as a report from the IASL (International Association of School Librarianship) Web site. (LRW)

Ansenberg, Dania; Branch, Jennifer L.; Silvennoinen, Anneli; Wilson, Kay; McClurg, Kati; Baffour-Awuah, Margaret; Clyde, Anne; Free, John; Oberg, Dianne

2000-01-01

379

Take Advantage of Constitution Day  

ERIC Educational Resources Information Center

|The announcement of the mandate for Constitution and Citizenship Day shortly before September, 2005, probably led to groans of dismay. Not another "must-do" for teachers and schools already stressed by federal and state requirements for standardized tests, increasingly rigid curricula, and scrutiny from the public and officials. But the idea and…

McCune, Bonnie F.

2008-01-01

380

A New Day for Intellectuals  

ERIC Educational Resources Information Center

|Soon after election day, the columnist Nicholas D. Kristof wrote in "The New York Times" that the "second most remarkable thing" about the election was that "American voters have just picked a president who is an open, out-of-the-closet, practicing intellectual." Surely, one of the secrets of President Obama's rhetorical power is his ability to…

Delbanco, Andrew

2009-01-01

381

Surviving Day One... and Beyond  

ERIC Educational Resources Information Center

|Early days on the job can be less than joyful for new teachers who regularly find themselves in seemingly impossible situations. Four educators who survived to tell the tale share their experiences and offer insight into what gave them the strength to continue on their chosen path.|

Salvo, Justine C.; Kibble, Lolethia; Furay, Mary Anthony; Sierra, Edward A.

2005-01-01

382

Sun-Earth Day: 2009  

NSDL National Science Digital Library

This website is dedicated to NASA's annual Sun-Earth Day, an annual program of activities whose main purpose is to disseminate knowledge of the Sun through celestial events. The site includes "Technology through Time," webpages devoted to presenting information on various related topics. The site includes news and events for each year's activities and also suggestions for teachers.

2009-02-26

383

Last Days of Che Guevara.  

National Technical Information Service (NTIS)

The basic format is that of a recounting of the final days of the guerrilla campaign against Che Cuevara by the members of the U. S. trained Bolivian 2d Ranger Battalion. Longer and more complete accounts of the entire campaign are available but there alw...

J. P. Rice

1972-01-01

384

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

385

Day-Night-Twilight Chart.  

National Technical Information Service (NTIS)

The 'Day-Night-Twilight Chart' provides a ready reference as to the sunlit portions of the northern hemisphere at 0000Z, 0600Z, 1200Z and 1800Z. It is anticipated, that as a guide to those weather reporting stations which are affected by solar heating at ...

1967-01-01

386

Music All the Livelong Day.  

ERIC Educational Resources Information Center

Discusses how creating a musical climate in early childhood classrooms can give children a way to express feelings and ideas, and can smoothly blend the activities and routines of the classroom day. Provides suggestions for making new songs from old and creating new songs. Includes sample songs. (KB)

Moravcik, Eva

2000-01-01

387

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

388

Giving Thanks: Observing Thanksgiving, Kwanzaa, and Day of the Dead.  

ERIC Educational Resources Information Center

Describes a primary-grade curriculum unit organized around the theme of "giving thanks" and encompassing the holidays of Thanksgiving, Kwanzaa, and Day of the Dead. Provides historical background and cultural context for each holiday, engagement activities, investigation activities, sharing activities, and a short list of related children's…

Dever, Martha T.; Barta, James J.

1997-01-01

389

Depression in Pregnancy and Postpartum Period  

PubMed Central

This prospective study was carried out in a service hospital, with the aim to study the prevalence and incidence of depression in pregnancy and postpartum period. Eighty Four consecutive patients attending the antenatal outpatient in the Obstetrics & Gynaecology department in their last trimester of pregnancy were recruited for the study. They were assessed on Beck Depression Inventory thrice viz. during third trimester of pregnancy, within 3 days of delivery (early postpartum period) & within 4-8 weeks of delivery (late postpartum period).The prevalence of depression was 8.3%, 20% and 12.8% respectively at three ratings. The incidence was 16% and 10% in the early & late postpartum period respectively. Further analysis revealed that depression in pregnancy correlated significantly with depression in early postpartum period, but not with late postpartum period. Depression in early postpartum period correlated with depression in late postpartum period.These findings have implications for early detection and care of women at risk for developing depression.

Sood, Mamta; Sood, A.K.

2003-01-01

390

Life cycle of Lampito mauritii (Kinberg) in comparison with Eudrilus eugeniae (Kinberg) cultured on different substrates.  

PubMed

Growth (length, biomass and mean growth rate) and reproduction (total duration, clitellum appearance, clitellum completion, cocoon commencement, rate of cocoon production, incubation period, hatching success and mean number of hatching per cocoon) of indigenous Lampito mauritii (Kinberg) in comparison with exotic Eudrilus eugeniae (Kinberg) cultured on three feed substrates-clay loam soil, cowdung and pressmud (filter cake) have been studied over a period of 360 days under laboratory conditions (30 +/- 2 degrees C, 60-65% moisture). There is a positive relationship between length and biomass of both worms cultured on three feed substrates throughout the period of study The decrease of worm length and biomass observed slightly on 63-70th days in Lampito mauritii and 42-49th days in Eudrilus eugeniae cultured on three fed substrates are the results of the onset of cocoon production. After 270 days both worms in all these fed substrates show decreasing trends of length and biomass which are due to continued reproduction and aging. Among the three fed substrates, pressmud supports significantly maximum worm length and biomass (between 90-130 days in Eudrilus eugeniae and 110-170 days in Lampito mauritii), earlier attainment of sexual maturity (between 51-76 days in Limpito mauritii and 27-37 days in Eudrilus eugeniae), earlier commencement of cocoon production (37.7 +/- 0.0 days in Eudrilus eugeniae and 76.4 +/- 0.10 days in Limpitomauritii), shorter incubation periods (16.3 +/- 0.28 days in Eudrilus eugeniae and 26.7 +/- 0.81 days in Limpito mauritii), more hatching success (98% in Limpito mauritii and 86% in Eudrilus eugeniae), more mean number of hatchling percocoon (3.2 + 0.03 in Limpito mauritii and 2.6 +/- 0.06 in Eudrilus eugeniae) and shorter duration of life cycle (108.8 +/- 0.07 days in Limpito mauritii and 60.2 +/- 0.09 days in Eudrilus eugeniae) than cowdung and clay loam soil. PMID:18405116

Parthasarathi, K

2007-10-01

391

Development of 3D hydrogel culture systems with on-demand cell separation.  

PubMed

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 3D co-culture methods lack the ability to effectively separate two 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 3D 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 3D 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, while 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

2013-02-28

392

Cultural Awareness: A Resource Bibliography.  

ERIC Educational Resources Information Center

This annotated bibliography cites books for children and resource materials such as books and articles, bibliographies, catalogs, and periodicals for adults which deal with various aspects of different cultures. Posters, pictures, records, films, filmstrips, slides, dolls, and museums which pertain to particular cultures are also listed. Separate…

Schmidt, Velma E.; McNeill, Earldene

393

Period meter for reactors  

DOEpatents

An improved log N amplifier type nuclear reactor period meter with reduced probability for noise-induced scrams is provided. With the reactor at low power levels a sampling circuit is provided to determine the reactor period by measuring the finite change in the amplitude of the log N amplifier output signal for a predetermined time period, while at high power levels, differentiation of the log N amplifier output signal provides an additional measure of the reactor period.

Rusch, Gordon K. (Downers Grove, IL)

1976-01-06

394

STS-73 flight day 4  

NASA Astrophysics Data System (ADS)

On this fourth 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 High-Packed Digital Television (HI-PAC) demonstration, the Surface Tension Driven Convection Experiment (STDCE), and the Drop Physics Module (DPM) experiment. Video footage is shown of the crew working in the Spacelab along with a split screen Shuttle downlink/Ground-Air Television (GATV) uplink from Mission Control. Several of the astronauts are interviewed by Mission Control regarding the status of the experiments.

1995-10-01

395

STS-73 flight day 2  

NASA Astrophysics Data System (ADS)

On this second 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 on the United States Microgravity Lab-2 (USML-2). These experiments included the Astroculture (tm)(ASC) experiment, the Protein Crystal Growth (PCG) experiment using liquid/liquid diffusion methods, and the Drop Physics Module (DPM) experiment. A High-Packed Digital Television (HI-PAC) system is used to downlink video images of the various experiments from the Shuttle to Mission Control. Video from Mission Control is uplinked to the shuttle using a Ground-Air Television (GATV) system.

1995-10-01

396

STS-73 flight day 3  

NASA Astrophysics Data System (ADS)

On this third 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 Surface Tension Driven Convection Experiment (STDCE), the Drop Physics Module (DPM) experiment, and the High-Packed Digital Television (HI-PAC) demonstration. The HI-PAC allows the digitization of up to six video downlink signals from the Spacelab experiments and other cameras onboard the Shuttle, where previously only one downlink was allowed.

1995-10-01

397

STS-73 flight day 14  

NASA Astrophysics Data System (ADS)

On this fourteenth 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 Drop Physics Module (DPM) experiment, the Surface Tension Driven Convection Experiment (STDCE), the Geophysical Fluid Flow Cell (GFFC) experiment, and an experiment on fuel combustion and combustion products. Bowersox, Sacco, Thornton, and Rominger (the red team) were interviewed by high school students from Worcester, Massachusetts, who asked questions regarding the mission's experiments and general questions about living in space. Earth views included a black and white image of the Earth's atmospheric boundary layers.

1995-11-01

398

STS-73 flight day 5  

NASA Astrophysics Data System (ADS)

On this fifth 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). These experiments are downlinked to Mission Control from the Spacelab using the High-Packed Digital Television (HI-PAC) systems onboard the Shuttle. The experiments shown include the Drop Physics Module (DPM) experiment, the Surface Tension Driven Convection Experiment (STDCE), the Protein Crystal Growth (PCG) experiment, and a Hand-Held Diffusion Test Cell experiment. Lopez-Alegria is interviewed in Spanish by two Spanish radio show hosts. Earth views include cloud cover, the Earth's horizon and atmospheric boundary layers, and several oceans.

1995-10-01

399

STS-73 flight day 8  

NASA Astrophysics Data System (ADS)

On this eighth 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 Astroculture(tm)(ASC) experiment, the Protein Crystal Growth (PCG) experiment, the Surface Tension Driven Convection Experiment (STDCE), the Commercial Generic Bioprocessing Apparatus (CGBA),and further testing of the High-Packed Digital Television (HI-PAC) system. An interview with Bowersox and Thornton regarding the mission's status was conducted by radio World News Now in Houston.

1995-10-01

400

STS-73 flight day 15  

NASA Astrophysics Data System (ADS)

On this fifteenth 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 hosting an in-orbit interview with various newspaper reporters from Johnson Space Center, Kennedy Space Center, and Marshall Space Flight Center via satellite hookup. The astronauts were asked questions regarding the status of the United States Microgravity Lab-2 (USML-2) experiments, their personal goals regarding their involvement in the mission, their future in the space program, and general questions about living in space. Earth views included cloud cover and a tropical storm.

1995-11-01

401

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

402

Plant cell bioreactor for the production of protoberberine alkaloids from immobilized Thalictrum rugosum cultures.  

PubMed

Cultured Thalictrum rugosum cells were immobilized using a glass fiber substratum previously shown to provide optimum immobilization efficiency based on spontaneous adhesion mechanisms. When cultivated in shake flasks, immobilized cells exhibited decreased growth and protoberberine alkaloid production rates in comparison to freely suspended cells. Since alkaloid production is growth associated in T. rugosum, the decreased specific production rate was a function of the slower growth rate. Cells immobilized on glass fiber mats appear to be amenable for extended culture periods. Maximum biomass and protoberberine alkaloid levels were maintained for at least 14 days in immobilized cultures. In contrast, fresh weight, dry weight, and total alkaloid content decreased in suspension cultures following the linear growth phase. Glass fiber mats were incorporated in to a 4.5-L plant cell bioreactor as horizontal disks supported on a central rod. Mixing in the reactor was provided by the combined actions of a magnetic impeller and a cylindrical sparging column. The magnetic impeller and a cylindrical sparging column. The entire inoculum biomass of T. rougosum, introduced as suspension, was spontaneously immobilized with in 8 h. During liner phase, the growth rate of bioreactor cultivated immobilized cells (mu = 0.06 day(-1)) was 50% that immobilized cell viability in both mmobilized cells cultivated in shake flasks (mu = 0.12 day(-1)). Percentage of cell viability in both systems was determined to be similar. The growing biomass in the bioreactor was completely retained by the glass fiber substratum during a 28-day culture period. The increase in specific production of protoberberine alkaloids was initially similar in bioreactor- and shake-flask-cultivated immobilized cells. However, the maximum specific production of bioreactor-grown cultures was lower. The scaleup potential of an immobilization strategy based on the spontaneous adhesion of cultured plant cells to glass fibers is demonstrated. PMID:18597386

Facchini, P J; Dicosmo, F

1991-03-01

403

Bovine granulocyte/macrophage and erythroid colony culture: characteristics of the colonies and the assay systems.  

PubMed Central

Bovine bone marrow granulocyte/macrophage colonies were cultured in vitro in methyl cellulose and in plasma clots using bovine endotoxin-stimulated serum as a source of colony stimulating activity. The endotoxin-stimulated serum was four times as potent as the control serum in the methyl cellulose cultures. No significant increase in the number of colony forming units was observed when bovine marrow cells were maintained in suspension cultures for various periods prior to plating in methyl cellulose. The percentage of glass/plastic adherent cells in bovine marrow cells was observed to be 43% +/- 12 (SD). Benzidine positive erythroid colonies appeared in plasma clot cultures on day 4 and disappeared by day 9. No second population of erythroid colonies appeared either as a function of time or as a function of erythropoietin concentration. The optimum erythropoietin concentration for bovine erythroid cultures was found to be 1.0 unit/mL. A significant difference was observed between animals in their marrow capacity to produce erythroid colonies in culture but no significant difference was observed within individual animals over a period of three months. Images Fig. 3.

Kaaya, G P; Maxie, M G; Valli, V E; Losos, G J

1979-01-01

404

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. Mol. Reprod. Dev. 80: 725-733, 2013. © 2013 Wiley Periodicals, Inc. PMID:23813589

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

2013-06-27

405

Effect of Fusarium roseum (Gibberella zea) on pregnancy and the estrous cycle in gilts fed molded corn on days 7-17 post-estrus.  

PubMed

A laboratory produced corn culture of Fusarium roseum (Gibberella zea) was fed as 10% of the total diet to bred and non-bred gilts on days 7-17 postestrus. The corn culture contained both zearalenone and deoxynivalenol by analysis, and caused considerable feed refusal. Although 6 of 10 bred gilts fed the corn culture appeared to be pregnant by ultrasound testing between days 40-50 post-breeding, none of them farrowed. Progesterone analyses indicated that none of the 10 gilts cycled normally during the 20 week observation period. Three maintained high serum progesterone (greater than 10 ng/ml) during the entire period. Progesterone analyses were similar in 5 non-bred gilts fed the corn culture in that none of them cycled normally in 20 weeks. The retention or loss of corpora lutea could not be attributed to levels of luteinizing hormone, as no relationship was found between concentrations of progesterone and luteinizing hormone. This experiment indicates that limited dietary exposure of female swine to Fusarium roseum infected corn can result in embryonic loss and disruption of normal reproductive cycling for an extended length of time. PMID:6224344

Long, G G; Diekman, M A; Tuite, J F; Shannon, G M; Vesonder, R F

1983-06-01

406

Insulin stimulates choline acetyltransferase activity in cultured embryonic chicken retina neurons.  

PubMed Central

The effect of insulin on the appearance of the enzyme choline acetyltransferase (ChoAcT; acetyl-CoA:choline O-acetyltransferase, EC 2.3.1.6) in embryonic chicken retina neurons cultured in defined medium was studied. In the presence of a minimal level of insulin (1 ng/ml), ChoAcT activity increased with time in culture. A correspondence between the insulin concentration in the defined medium (1-100 ng/ml) and both the rate of increase and maximum attained level of ChoAcT activity was observed. Maximal ChoAcT activity was 2- to 3-fold greater in cells cultured in the presence of 100 ng of insulin per ml than in cells cultured in the presence of 1 ng of insulin per ml. To elicit maximum ChoAcT activity, insulin at 100 ng/ml was required in the medium for only the first 4 days of the culture period, at which time insulin could be reduced to maintenance levels (10 ng/ml) without affecting ChoAcT activity. Insulin binding assays performed during a 7-day culture period revealed that irrespective of the insulin concentration in the medium during culture, cell-surface insulin receptors decreased by approximately 90% between 4 and 7 days in culture. This decrease in insulin binding corresponded to the observed decrease in the sensitivity of ChoAcT activity to insulin. Our findings suggest that insulin plays a role in mediating cholinergic differentiation in the embryonic chicken retina.

Kyriakis, J M; Hausman, R E; Peterson, S W

1987-01-01

407

Secretion of amyloid precursor protein and laminin by cultured astrocytes is influenced by culture conditions.  

PubMed

Although normally quiescent, astrocytes in the adult brain respond to various types of brain injury by rapidly dividing, swelling, extending cellular processes, and expressing increased amounts of glial fibrillary acidic protein (GFAP). These phenomena are collectively referred to as "astrogliosis." Similarly, astroglia in primary culture stop dividing when they attain confluency, yet, as seen in situ, they retain their proliferative capacity for extended periods and resume rapid division when subcultured. To examine the impact of glial division on secretion of neurite-promoting factors, conditioned medium (CM) was removed from subconfluent, newly confluent, and long-term confluent ("aged") neonatal rat astrocyte cultures, and from aged confluent cultures that had been repassaged, "lesioned" (scraping with a rubber policeman), or triturated 3 days before harvest. Secretion of neurite-promoting factor(s) by glial cells into these CM was then assayed by treating neuroblastoma cultures with these various CM and quantitating neurite elaboration. Extensive neurite sprouting was elicited by CM from cultures just reaching confluency and from repassaged, lesioned, or triturated cultures. CM from aged confluent cultures did not induce sprouting. These results indicate that secretion of neurite-promoting factor(s) is regulated by glial division, and suggest that gliosis in situ may contribute to neurite sprouting by similar mechanisms. Immunoblot analysis demonstrated the presence in CM of varying amounts of laminin and amyloid precursor protein (APP), including isoforms containing the Kunitz-type protease inhibitor domain. CM from subconfluent cultures contained trace amounts of these proteins, but CM from cultures just reaching confluency contained significant amounts. Although CM from aged cultures contained barely detectable levels of either protein, trituration or repassage of aged cultures dramatically increased secretion of these proteins. APP- and laminin-enriched CM fractions promoted neuritogenesis to a similar level as respective unfractionated CM; anti-APP and anti-laminin antisera blocked this effect. Purified human brain APP promoted neuritogenesis when added to non-conditioned medium and aged CM. Increased secretion of APP and laminin therefore mediates at least a portion of CM-induced neuronal sprouting; these proteins may perform analogous functions during astrogliosis in situ. PMID:8151728

Shea, T B; Beermann, M L; Honda, T; Nixon, R A

1994-02-01

408

'Is getting well ever an art?': Psychopharmacology and madness in Robert Lowell's Day by Day.  

PubMed

On the publication of Robert Lowell's Life Studies in 1959, some critics were shocked by the poet's use of seemingly frank autobiographical material, in particular the portrayal of his hospitalizations for bipolar disorder. During the late fifties and throughout the sixties, a rich vein, influenced by Lowell, developed in American poetry. Also during this time, the nascent science of psychopharmacology competed with and complemented the more established somatic treatments, such as psychosurgery, shock treatments, and psychoanalytical therapies. The development of Thorazine was a remarkable breakthrough allowing patients previously thought incurable to leave hospital. In 1955, the release of Miltown, the first 'minor' tranquilizer, was heralded with a media fanfare promising a new dawn of psychological cure-all. These two events blurred the boundary between 'normality' and madness by making treatment in the community more widely possible and by medicalizing more commonplace distress. Lowell's early depictions of madness situate it as emblematic of the cultural malaise of 'the tranquilized fifties.' By his final collection, Day by Day (1977), mental illness had lost its symbolic power. These late poems explore the power of art as a way of representing and remedying suffering in a culture where psychopharmacology has normalized madness. PMID:21853380

Travis, Isabelle

2011-12-01

409

Long-Period Variability in o Ceti  

NASA Astrophysics Data System (ADS)

We carried out a new and sensitive search for long-period variability in the prototype of the Mira class of long-period pulsating variables, o Ceti (Mira A), the closest and brightest Mira variable. We conducted this search using an unbroken light curve from 1902 to the present, assembled from the visual data archives of five major variable star observing organizations from around the world. We applied several time-series analysis techniques to search for two specific kinds of variability: long secondary periods (LSPs) longer than the dominant pulsation period of ~333 days, and long-term period variation in the dominant pulsation period itself. The data quality is sufficient to detect coherent periodic variations with photometric amplitudes of 0.05 mag or less. We do not find evidence for coherent LSPs in o Ceti to a limit of 0.1 mag, where the amplitude limit is set by intrinsic, stochastic, low-frequency variability of approximately 0.1 mag. We marginally detect a slight modulation of the pulsation period similar in timescale to that observed in the Miras with meandering periods, but with a much lower period amplitude of ±2 days. However, we do find clear evidence of a low-frequency power-law component in the Fourier spectrum of o Ceti's long-term light curve. The amplitude of this stochastic variability is approximately 0.1 mag at a period of 1000 days, and it exhibits a turnover for periods longer than this. This spectrum is similar to the red noise spectra observed in red supergiants.

Templeton, Matthew R.; Karovska, Margarita

2009-02-01

410

Vaginal bleeding between periods  

MedlinePLUS

... tests to check thyroid and ovarian function Cervical cultures to check for a sexually transmitted infectin Colposcopy and cervical biopsy Endometrial (uterine) biopsy Pap smear Pelvic ultrasound Pregnancy test

411

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.

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

2011-01-01

412

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

413

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

414

STS-74 flight day 6  

NASA Astrophysics Data System (ADS)

On this sixth day of the STS-74 mission, the flight crew, Cmdr. Kenneth Cameron, Pilot James Halsell, and Mission Specialists William McArthur, Jerry Ross, and Chris Hatfield and the Mir 20 cosmonauts, Cmdr. Yuri Gidzenko, Flight Engineer Sergei Avdeyev, and Cosmonaut-Researcher (ESA) Thomas Reiter, were greeted and briefly interviewed by the Secretary General of the United Nations, Boutros Boutros-Ghali, on the 50th anniversary of the United Nations via a radio satellite hookup. An additional interview with other journalists from different areas of the United States and Canada was also presented.

1995-11-01

415

Haemophilus influenzae type b disease. Incidence in a day-care center.  

PubMed

Haemophilus influenzae type b (HIB) disease was observed during a 14-month period in seven of 48 infants attending a day-care center. Surveillance studies showed that 28 (58%) infants had positive nasopharyngeal cultures for HIB; four infants were colonized with HIB for nine to 12 months. Ampicillin trihydrate prophylaxis failed to reduce the HIB carrier rate. Haemophilus influenzae type b polysaccharide vaccine was administered to 34 of the children. Sera obtained prior to immunization showed detectable antibody in all infants. Only nine (26%) infants had twofold or greater rises in serum HIB antibody titers after vaccination. Antibody response was independent of age, preimmunization antibody concentration, and HIB carrier status. In one infant, HIB meningitis developed four months after she received polysaccharide vaccine. This outbreak emphasizes that HIB is highly contagious in closed populations of young, susceptible infants. PMID:301947

Ginsburg, C M; McCracken, G H; Rae, S; Parke, J C

1977-08-15

416

The maintenance of rat palatal mucosa in organ culture.  

PubMed Central

Palatal mucosa from neonatal rats was maintained under organ culture conditions in a chemically defined medium for periods up to 28 days. The histological state of the cultured palatal mucosa was compared with that of control tissue from growing animals of comparable age. The control tissues showed an increase in epithelial thickness, first noticeable at 17 days. Whilst the general structure of the tissues in organ culture was preserved for the duration of the experiment, some changes in epithelial behavior were evident. There was an increase in epithelial thickness up to 6 days, followed by a reduction in the nucleated cell layer of the epithelium to a thickness comparable with that at the start of the experiment. There was a loss of epithelial glycogen within the first day, with occasional reappearance of patchy and irregular deposits. Whereas the control of epithelial thickness appeared to be restored after 10 days in vitro, disturbances in the maturation of the keratinocytes, manifested as epithelial pearls and dyskeratotic cells, were evident at subsequent stages. Epiboly never occurred. The connective tissue component showed continued development, indicated by an increase in the thickness of collagen fibres. The overall palatal growth seen in vivo did not occur in organ culture. We suggest that the improved maintenance reported is partly the result of explanting tissues in such a way as to minimize trauma, and partly the result of incorporating serum albumin into the chemically defined medium. Images Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10

Hill, M W; Miles, A E

1976-01-01

417

Day Camp Manual: Administration. Book I.  

ERIC Educational Resources Information Center

The first book in a 5-book manual on day camping focuses on summer day camp administration. The book defines day camps as organized group experiences in outdoor living on a day-by-day basis and under trained leadership. It includes a philosophy of day camping, noting benefits to the campers. The book is divided into further chapters that describe…

Babcock, William

418

Day-to-Day Variation in Food Intake and Energy Expenditure in Healthy Women: The Dietitian II Study.  

PubMed

Because day-to-day food intake varies, we tested the hypothesis that ad libitum food intake and energy expenditure show corrective responses over periods of 1 to 10 days in healthy young women. Food intake and accelerometry measurements were collected daily for 17 days in 15 young women. Total daily energy expenditure (TDEE) using doubly labeled water was also measured. The daily deviations in macronutrient and energy intake and energy expenditure from the average values were compared with the deviations observed over succeeding intervals to estimate the corrective responses. The intraindividual coefficients of variation for energy intake averaged ±25%, ranging from 16% to 34%. TDEE had a coefficient of variation of 8.3%, and accelerometry had a coefficient of variation of 8.4% (range=4.6% to 16.4%). Energy expenditure by accelerometry (2,087±191 kcal/day) was not significantly different from TDEE (2,128±177 kcal/day), but reported daily energy intake was 20.4% lower (1,693±276 kcal/day). There were significant corrective responses in energy from fat and total energy intake. This occurred from Days 3 to 6, with a peak at Day 5 that disappeared when data were randomized within each subject. Human beings show corrective responses to deviations from average energy and macronutrient intakes with a lag time of 3 to 6 days, but not 1 to 2 days. These corrective responses are likely to play a role in bringing about weight stability. PMID:24021734

Champagne, Catherine M; Han, Hongmei; Bajpeyi, Sudip; Rood, Jennifer; Johnson, William D; Lammi-Keefe, Carol J; Flatt, Jean-Pierre; Bray, George A

2013-09-08

419

STS-73 flight day 1  

NASA Astrophysics Data System (ADS)

On this first 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 in various stages of prelaunch and launch activities. This mission carries the United States Microgravity Lab-2 (USML-2) payload, in which a variety of spaceborne microgravity experiments will be performed. These experiments include the Advanced Protein Crystallization Facility (APCF), The Astroculture (tm)(ASC) hardware and experiment, the Commercial Generic Bioprocessing Apparatus (CGBA), the Crystal Growth Furnace (CGF), the Drop Physics Module (DPM), the Geophysical Fluid Flow Cell (GFFC), the Glovebox (GBX), the Zeolite Crystal Growth (ZCG) experiment, the Surface Tension Driven Convection Experiment (STDCE), the Protein Crystal Growth (PCG) experiment, three Measuring Microgravity experiments (the Space Acceleration Measurement System (SAMS), the Three Dimensional Microgravity Accelerometer (3DMA), and the Orbital Acceleration Research Experiment (OARE)), and the High-Packed Digital Television (HI-PAC) demonstration system. Earth views include some cloud cover and various Earth land masses.

1995-10-01

420

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

421

Cultural Shock  

NSDL National Science Digital Library

The Demos organization in London is a think-tank that produces compelling reports on everything from public space to government spending. This report from October 2010 is by Samuel Jones, and he explores the relationship between the British government and culture and sport. His basic question is: "Why should the state get involved in culture, and if it should, how?" The 154-page report is divided into sections such as "Society and the cultural realm", "Taking the cultural pulse of a nation", and "Evidence of Potential". It's an interesting read, and the paper argues that "cultural policy must focus on the equitable distribution of individuals' cultural capabilities, indicating that this will require thinking anew about what form the structures take, and how they are run."

Jones, Samuel

422

The content and activity of cytochrome P-450 in long-term culture of hepatocytes from male and female rats.  

PubMed

The content of cytochrome P-450 and the capacity for O-demethylation have been measured in cultures of hepatocytes from male and female rats for a period of 21 days. The effect of dexamethasone, insulin, glucagon, phenobarbital and hemin was investigated. In hepatocytes from female rats the content of cytochrome P-450 was unchanged after one day of culture. From day 1 to day 3 the content of cytochrome P-450 decreased by 65% and only the combined addition of dexamethasone, phenobarbital and hemin diminished the fall. After the initial fall, addition of 0.1 microM dexamethasone resulted in a stable value. Addition of 1 microM dexamethasone or 1 mM phenobarbital gave rise to an induction of cytochrome P-450 (285%). The high level of cytochrome P-450 was maintained for 3 weeks. In hepatocytes from male rats the content of cytochrome P-450 decreased by 40% after one day of culture. From day 1 to day 3 the content decreased by 45% and the decrease continued irrespective of the presence of hormones and/or phenobarbital. The O-demethylase activity in cultures of hepatocytes from female rats correlated to the cytochrome P-450 content independent of medium composition and age of the cultures, whereas no correlation was found in cultures from male rats. The present study demonstrates that hepatocytes from female rats in cultures retain O-demethylase activity for at least 3 weeks and that, with the experimental conditions used, the response to the hormones and inducers is different for hepatocytes from male and female rats. PMID:3355606

Vind, C; Dich, J; Grunnet, N

1988-04-01

423

[Scientific periodicals: quality criteria].  

PubMed

This paper presents a historical literature review on the evaluation of periodicals and the methodology employed for their evaluation. It emphasizes the attention that should be given to the contents of the periodicals and their format based on technical standards in order to reach a global quality of the publications. This paper includes a summary of the most important aspects of the technical standards for periodicals and scientific articles. PMID:12937744

Ferreira, Maria Cecilia Gonzaga; Krzyzanowski, Rosaly Favero

2003-08-14

424

Carbohydrate loading in human muscle: an improved 1 day protocol  

Microsoft Academic Search

.   It is generally acknowledged that even without a glycogen-depleting period of exercise, trained athletes can store maximal\\u000a amounts of muscle glycogen if fed a carbohydrate-rich diet for 3 days. What has never been examined is whether under these\\u000a conditions this many days are necessary for the content of muscle glycogen to attain these high levels. To examine this issue,\\u000a eight

Vanessa A. Bussau; Timothy J. Fairchild; Arjun Rao; Peter Steele; Paul A. Fournier

2002-01-01

425

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

426

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

427

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.

428

Growth differentiation factor-9 and anti-Müllerian hormone expression in cultured human follicles from frozen-thawed ovarian tissue.  

PubMed

In-vitro growth of frozen-thawed human follicles is perceived as a potential option for restoring women's fertility. The aims of this study were: (i) to test the usefulness of a defined serum-free medium for growth of frozen-thawed human follicles; and (ii) to evaluate the expression of growth differentiation factor-9 (GDF-9) and anti-Müllerian hormone (AMH) in cultured follicles. Frozen-thawed ovarian cortical pieces from 7-, 12-, 25- and 27-year-old women were cultured for 0, 7, 14, 21 and 28 days. Follicle developmental quality was evaluated and expression of proliferating cell nuclear antigen (PCNA) (day 21), GDF-9 (days 14 and 28) and AMH (day 21) was assessed by immunohistochemistry. Primary follicles and enclosed oocytes underwent significant growth at the end of culture (P < 0.05). Cultured follicles from all patients studied reached the early secondary stage and a few follicles from two patients developed up to the secondary stage. The rate of atresia was variable throughout the culture periods. PCNA was expressed in the granulosa cells at all the different follicular stages. AMH and GDF-9 immunostaining were found respectively in the granulosa cells and oocytes after several weeks of culture. The transition from resting to growing follicles leading to the development of secondary follicles showed the normal expression patterns of GDF-9 and AMH. PMID:18854109

Sadeu, J C; Smitz, J

2008-10-01

429

How Facebook saved our day!  

PubMed

Facebook and social media networking applications use is ubiquitous across all ages and cultures. Facebook has finally begun to appear in the medical-scientific press. Today's medical literature is focused on concerns of professionalism in young health care practitioners vis-à-vis the lay public as they continuously expose themselves through this online social medium. With over 500 million users, Facebook hosts many of our patients, who are also exposed to the Internet and social media. Nobody so far has considered the opposite issue: that of physician invasion of privacy by "looking-up" a patient on Facebook during clinical practice for purposes of history-taking or diagnostic clues in situations where patients are too ill to provide needed information. We need to consider the ethical implications of privacy invasion in the current era of information technology. We need to acquire and maintain a certain level of "social media competency" to better debate the issues around Facebook and how we integrate on-line content with our patients' histories of present illness (HPI) or past medical histories (if at all). PMID:22044488

Ben-Yakov, Maxim; Snider, Carolyn

2011-11-01

430

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

431

Day-to-day variability of equatorial and low latitude F-region ionosphere in the Indian zone  

Microsoft Academic Search

The F-region variability of the ionosphere during high solar activity periods have been studied using different hourly foF2 data from Indian stations, Thiruvananthapuram (8.5°N, 76.8°E), Kodaikanal (10.2°N, 77.5°E) near the Dip equator and Delhi (28.6°N, 77.2°E) located north of the equatorial ionization anomaly (EIA). During the study three types of changes have been observed, viz., single day abnormality, alternate day

R. S. Dabas; Neerja Sharma; M. G. K. Pillaii; A. K. Gwal

2006-01-01

432

PEC: Period Error Calculator  

NASA Astrophysics Data System (ADS)

The PEC (Period Error Calculator) algorithm estimates the period error for eclipsing binaries observed by the Kepler Mission. The algorithm is based on propagation of error theory and assumes that observation of every light curve peak/minimum in a long time-series observation can be unambiguously identified. A simple C implementation of the PEC algorithm is available.

Mighell, Kenneth J.

2013-04-01

433

Retrospective Conversion of Periodicals  

Microsoft Academic Search

To participate in automated serials check-in systems or online catalogs, libraries must convert their manual periodicals records into machine-readable form. This article describes retrospective conversion, using OCLC and currently available staff and resources, of an uncataloged periodicals collection. Various phases of the conversion project, including planning, staffing, training, inventorying, editing procedures and updating, are discussed, as are problems encountered and

Rita Broadway; Jane Qualls

1988-01-01

434

External phosphorus requirements of five tropical grain legumes grown in flowing-solution culture  

Microsoft Academic Search

Summary  Five tropical grain legume species were grown for periods from 4 to 20 days in flowing-solution culture at 7 maintained phosphorus\\u000a (P) concentrations, ranging from 0.25 ?M to 16 ?M. Critical external P requirements were 0.8 ?M for cowpea cv. Vita 4 and soybean cv. Fitzroy, 1.0 ?M for pigeon pea cv. Royes, 2.0 ?M for mungbean cv. Regur and

A. J. Fist; F. W. Smith; D. G. Edwards

1987-01-01

435

Long-term effects of restrictive culture conditions on Saccharomyces cerevisiae sec7 cells  

Microsoft Academic Search

Long-term effects of restrictive conditions on the temperature-sensitive S. cerevisiae sec7 mutant were studied. By microscopic analysis no cell lysis could be detected of cells cultured for up to 19 days at 37°C. The optical density as well as the cell number remained constant during the whole period under restrictive conditions. However, restrictive conditions decreased the incorporation of 35S-methionine into

Christiane Kühnel; Regina Stoltenburg; Irene Kunze; Gotthard Kunze

1996-01-01

436

Corneal preservation at ?4°C in a modified tissue culture medium  

Microsoft Academic Search

Addition of 6% PVP (polyvinylpyrrolidone, mol wt 40,000) to tissue culture medium No. 199 prevents it from freezing at -4° C. Forty donor corneas stored for five and ten days in this medium had a mean thickness of 0.61 and 0.67 mm, respectively. By means of specular microscopy, intact endothelium was found after these storage periods. Epithelial cell layers were

Bernd Schimmelpfennig; R. Witmer

1978-01-01

437

Communicating Culture  

Microsoft Academic Search

By moving away from metaphors such as transparent-translation channels or omniscient agents, will it be possible to create communicating cultures with simple conversational agents, which might make errors but recognize (and fulfill) their expected role? By accomplishing this objective, intercultural experiences will be a lot more enjoyable, and many may feel that we'll be preserving the various unique cultures existing

Toru Ishida

2006-01-01

438

Collaborative Culture  

ERIC Educational Resources Information Center

|Creating a culture of inquiry rather than continuing to work in a culture of isolation represents a significant change within schools that must be supported. In this article, the author presents and discusses a well-constructed agenda template which shows topic, purpose, guiding questions, and background or process. He states that an agenda…

Garmston, Robert

2007-01-01

439

Popular Culture  

Microsoft Academic Search

Popular culture studies have until recently been treated as more or less un- worthy of serious scholarly attention. But developments in anthropology, history, communication, American studies, and literary criticism have given the study of popular culture new analytic tools and legitimacy. This article reviews some of the more noteworthy contributions to this body of scholarship. Interpretive anthropology by Clifford Geertz,

Chandra Mukerji; Michael Schudson

1986-01-01

440

Teaching Culture  

ERIC Educational Resources Information Center

Undergraduate education has not kept pace with knowledge about the role of culture in shaping human and social behavior. The deficiencies can and should be repaired, but some real innovations are essential to the process. Despite the challenge, there is a real opportunity to parlay research advances emerging out of the recent "cultural turn" in a…

Stearns, Peter N.

2004-01-01

441

Cultural Communications.  

ERIC Educational Resources Information Center

|It is too often taken for granted that the communication process with culturally different children takes place as readily as it might with children from Anglo cultures. Most teachers receive training in verbal and formal communication skills; children come to school with nonverbal and informal communication skills. This initially can create…

Armas, Jose

442

Localization of Period 1 mRNA in the ruminant oocyte and investigations of its role in ovarian function.  

PubMed

The clock gene Period 1 (Per1) may be a prolificacy gene, because it localized to the mouse oocyte and Per1-null drosophila shed fewer eggs. Because Per1 mapped to a region of mouse chromosome 11 syntenic to bovine chromosome 19 where a quantitative trait loci (QTL) for ovulation rate existed, we hypothesized that Per1 influenced folliculogenesis and ovulation rate in ruminants. Ovarian cortex was collected at slaughter on days 5, 12, 15, 17, and 20 after estrus for real-time RT-PCR evaluation of Per1 mRNA expression in Dorset (n = 18), Romanov (n = 10), Romanov/Dorset (n = 21), and Composite (n = 22) ewes. Ovarian cortex was also collected from cows selected for increased ovulation rate (n=37) or unselected controls (n = 28) on days 4, 5, and 6 of the estrous cycle for in situ hybridization and real-time RT-PCR. To examine the role of Per1 in early follicular development, ovarian cortex from neonatal calves (n = 5) was cultured for 10 days and Per1 mRNA levels were measured on day 0 and on day 10 of culture. The primers generated a 483bp amplicon with 100% sequence homology to bovine RIGUI-like protein (Per1). In silico mapping of this sequence placed Per1 on bovine chromosome 19; however, it was 20cM from the QTL. Per1 mRNA expression was unaffected by prolificacy, day of the cycle, or pregnancy status in ewes or cows. The riboprobe hybridized to oocytes of bovine preantral and antral follicles. In bovine ovarian cortical cultures on day 0, the tissue contained mostly primordial follicles (5.6+/-0.6 follicles/section); however, after 10 days in culture, the number of primordial follicles per section decreased (0.5 follicles/section) and the number of primary follicles increased as follicles activated (day 0 = 0.5+/- 0.6 versus day 10 = 10.4 +/-0.6 primary follicles/section; P < 0.001). Per1 mRNA did not change over time in culture. We conclude that Per1 mRNA is expressed by ruminant oocytes in preantral and antral follicles; however, its physiological role in mammalian ovarian function remains to be elucidated. PMID:16787718

Cushman, R A; Allan, M F; Jones, S A; Rupp, G P; Echternkamp, S E

2006-06-19

443

Chlamydial Infection of Conjunctival Tissues in Culture  

PubMed Central

Baboon conjunctival cells removed as scrapings from the conjunctiva could be disaggregated and maintained in culture for up to 5 days without appreciable loss of viability. Attempts to infect cultures with a TRIC agent or its “fast” variant were unsuccessful. Nevertheless such cultures appeared to support the growth of TRIC agent since conjunctival cells obtained from infected baboons developed inclusions while maintained in vitro. Cell viability and tissue structure were preserved over 6 days organ culture of conjunctivae. Organ cultures supported the growth of chlamydiae: the TRIC fast variant grew in low titre in baboon cultures; the highly virulent gp-ic agent grew to high titre in guinea-pig cultures. Frequent inclusion bodies and damaged epithelium were seen in histological examination of infected guinea-pig cultures; occasional sub-epithelial inclusions were detected, some of which were atypical in morphology. ImagesFigs. 1-6

Moore, J. E.; Griffiths, M. S.; Pearce, J. H.

1974-01-01

444

Wavelet periodicity detection algorithms  

NASA Astrophysics Data System (ADS)

This paper deals with the analysis of time series with respect to certain known periodicities. In particular, we shall present a fast method aimed at detecting periodic behavior inherent in noise data. The method is composed of three steps: (1) Non-noisy data are analyzed through spectral and wavelet methods to extract specific periodic patterns of interest. (2) Using these patterns, we construct an optimal piecewise constant wavelet designed to detect the underlying periodicities. (3) We introduce a fast discretized version of the continuous wavelet transform, as well as waveletgram averaging techniques, to detect occurrence and period of these periodicities. The algorithm is formulated to provide real time implementation. Our procedure is generally applicable to detect locally periodic components in signals s which can be modeled as s(t) equals A(t)F(h(t)) + N(t) for t in I, where F is a periodic signal, A is a non-negative slowly varying function, and h is strictly increasing with h' slowly varying, N denotes background activity. For example, the method can be applied in the context of epileptic seizure detection. In this case, we try to detect seizure periodics in EEG and ECoG data. In the case of ECoG data, N is essentially 1/f noise. In the case of EEG data and for t in I,N includes noise due to cranial geometry and densities. In both cases N also includes standard low frequency rhythms. Periodicity detection has other applications including ocean wave prediction, cockpit motion sickness prediction, and minefield detection.

Benedetto, John J.; Pfander, Goetz E.

1998-10-01

445

When cultures collide.  

PubMed

When it was discovered that the perpetrator of a hit and run accident that sent two severely injured victims to the author's hospital was the father of one of the victims who allegedly tried to kill her for dishonoring the family, a 15 day siege ensued. In the article, the author describes the problems involved in keeping two warring families apart without denigrating their culture and the lessons learned for dealing with such complex situations. PMID:20229935

Knowles, Thomas W

2010-01-01

446

Evaluation of postmortem bacterial migration using culturing and real-time quantitative PCR.  

PubMed

Postmortem bacteriology can be a valuable tool for evaluating deaths due to bacterial infection or for researching the involvement of bacteria in various diseases. In this study, time-dependent postmortem bacterial migration into liver, mesenteric lymph node, pericardial fluid, portal, and peripheral vein was analyzed in 33 autopsy cases by bacterial culturing and real-time quantitative polymerase chain reaction (RT-qPCR). None suffered or died from bacterial infection. According to culturing, pericardial fluid and liver were the most sterile samples up to 5 days postmortem. In these samples, multigrowth and staphylococci were not or rarely detected. RT-qPCR was more sensitive and showed higher bacterial positivity in all samples. Relative amounts of intestinal bacterial DNA (bifidobacteria, bacteroides, enterobacter, clostridia) increased with time. Sterility of blood samples was low during the studied time periods (1-7 days). The best postmortem microbiological sampling sites were pericardial fluid and liver up to 5 days after death. PMID:23550887

Tuomisto, Sari; Karhunen, Pekka J; Vuento, Risto; Aittoniemi, Janne; Pessi, Tanja

2013-03-29

447

Synthesis of sperm-specific basic nuclear proteins (SPs) in cultured spermatids from Xenopus laevis  

SciTech Connect

The accumulation and synthesis of sperm-specific basic nuclear proteins (SPs) in Xenopus spermatids in vitro were studied by acid-urea-Triton polyacrylamide gel electrophoresis and fluorography. In synchronous cultures of round spermatids, the amount of SP2 and SP3-5 accumulated almost linearly with time, while that of SP1 remained almost constant. Fluorography showed that round spermatids incorporated {sup 14}C arginine mostly into SP1 and SP3-5, very little into SP2, and none into histones. When {sup 14}C arginine was incorporated into cells for 24 h on Days 0, 3, and 6, followed by immediate extraction of basic nuclear proteins, the SP1 band was detected faintly on Day 0 and the intensity increased to the maximum level by Day 3 and remained constant on Day 6; the SP3-5 bands were first detected on Day 3 and their intensity increased by Day 6. Thus, SP1 and SP3-5 were synthesized differentially during the culture period. When {sup 14}C arginine or {sup 14}C lysine was incorporated into round spermatids on Days 0, 3, and 6 for 15 h and chased for 3-12 days, the intensity of the SP2 band increased significantly, while the intensity of the SP1 band decreased concomitantly. This result indicates that SP2 was processed from a precursor protein which is probably SP1.

Abe, S.; Hiyoshi, H. (Kumamoto Univ. (Japan))

1991-05-01

448

Toxic effects of 70-hydroxycholesterol on rat liver primary cultures, epithelial lines and co-cultures  

Microsoft Academic Search

The toxic effects of 7,8-hydroxycholesterol (7ß-OHC) on cultures and co-cultures of rat hepatocytes, rat liver epithelial cell lines, and rat liver fibroblast lines were investigated. Hepatocytes in primary culture or co-cultured with proliferative epithelial cells, were not affected by the presence of 7,8-OHC at a concentration of 400µM over a period of 72 hours. In contrast, Proliferative cultures of liver

Patrice Nordmann; Miguel Diez-Ibanez; Martine Chessebeuf-Padieu; Bang Luu; Gerard Mack; Marcel Mersel

1989-01-01

449

Child Development: Day Care. Administration, Number 7.  

ERIC Educational Resources Information Center

The organizing and administering of day care services are the focus of this handbook. The three parts of the handbook are: (1) Organizing Day Care Services (Starting a Day Care Program, The Board of Directors, and The Staff); (2) Components of Day Care Services (Purpose, Objectives and Evaluation of Day Care Programs; Health and Medical Program;…

Host, Malcolm S.; Heller, Pearl B.

450

Paraben Transport and Metabolism in the Biomimetic Artificial Membrane Permeability Assay (BAMPA) and 3Day and 21Day Caco-2 Cell Systems  

Microsoft Academic Search

Noncellular and cellular in vitro models for predicting intestinal absorption were used to investigate the transport and metabolism of parabens. The biomimetic artificial membrane permeability assay (BAMPA) membrane was constructed by impregnating a lipid solution on a hydrophobic filter. Caco-2 cells at passage numbers 65 to 80 were cultured in either the accelerated 3-day Biocoat™ system or the standard 21-day

Mark Lakeram; David J. Lockley; David J. Sanders; Ruth Pendlington; Ben Forbes

2007-01-01

451

A 154-day periodicity in the occurrence of hard solar flares?  

Microsoft Academic Search

Since the launch of the SMM satellite on 1980 February 14, the Gamma-Ray Spectrometer has been monitoring the Sun in the energy range 0.3 - 100 MeV. So far 139 flares have been monitored. The authors report on an analysis of the temporal distribution of these high-energy events to provide information on solar activity and find that, instead of being

E. Rieger; G. Kanbach; C. Reppin; G. H. Share; D. J. Forrest; E. L. Chupp

1984-01-01

452

ESTIMATION OF SEASONAL AND ANNUAL ACIDIC DEPOSITION THROUGH AGGREGATION OF THREE-DAY EPISODIC PERIODS  

EPA Science Inventory

A method for aggregating episodic deposition estimates has been developed and used to identify which meteorological situations merit simulation by RADM based on their likelihood of producing sulfate (SO4) wet deposition at multiple locations across eastern North America, their fr...

453

78 FR 17313 - Ninety-Day Waiting Period Limitation and Technical Amendments to Certain Health Coverage...  

Federal Register 2010, 2011, 2012, 2013

...Part 2590 RIN 1210-AB56 DEPARTMENT OF HEALTH AND HUMAN SERVICES 45 CFR Parts 144...Limitation and Technical Amendments to Certain Health Coverage Requirements Under the Affordable...Medicare & Medicaid Services, Department of Health and Human Services. ACTION:...

2013-03-21

454

Periodicities in Jupiter's magnetotail  

NASA Astrophysics Data System (ADS)

The New Horizons spacecraft had a close flyby of Jupiter in 2007. The Pluto energetic particle spectrometer science investigation (PEPSSI) made measurements beginning early in the same year. It obtained data as the spacecraft flew inward through closest approach and out down Jupiter's magnetotail. Measurements of ions and electrons were obtained to tail distances of over 1 AU. General surveys of electron data from PEPSSI revealed increases in intensity at approximately the spin period of the planet. These periodic variations were obtained well down the tail. It is not completely understood whether there is a periodic source of particles that remain coherent to large distances or whether the planet's period is somehow communicated down the tail. In this work, we will discuss the PEPSSI data by species to study the periodicities in the data and to constrain the source of these phenomena. In the past, other spacecraft data have revealed multiple periodicities much closer to the planet. These have been associated with both the planet's rotation and the periodic release of plasma down the tail.

Paranicas, C.; Haggerty, D. K.; Khurana, K. K.; Bagenal, F.

2011-12-01

455

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

456

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)."

457

Cell senescence culturing methods.  

PubMed

Development of therapeutic approaches that slow or ablate the adverse physiological and pathological changes associated with aging has been considered as an important goal for gerontological research. As cellular senescence is characterized as the basis for aging in organisms, culturing and subculturing of normal human diploid fibroblasts to mimic the in vivo aging processes have been developed as major methods to investigate molecular events involved in aging. It has been established that normal human diploid fibroblasts can proliferate in culture for only finite periods of time. There are many ways to study aging in vitro. In this chapter, we will discuss some of the basic laboratory procedures for cell senescence culturing methods. PMID:23929093

Chen, Huaping; Li, Yuanyuan; Tollefsbol, Trygve O

2013-01-01

458

Cell death pattern of a varicose vein organ culture model.  

PubMed

The study aimed to investigate the viability of a varicose vein (VV) organ culture model by assessing cell death pattern. To assess pattern of cell death with time, VV organ cultures were incubated for up to 14 days with regular medium changed. To assess viability, cell death of VV organ cultures treated with sodium azide and their untreated counterparts was assayed. Increased cell death was measured in VV organ cultures from day 0 to 2. Cell death decreased gradually after day 2 and plateaued from day 8 to 14.VV organ cultures treated with sodium azide demonstrated significantly more cell death in tissue (P = 0.001). Cell death measured in cultures treated with sodium azide continued to increase until day 7. In conclusion, this study demonstrated the viability of a VV organ culture model with most cell death occurred within the first two days and then declined to a relatively low level. PMID:23526103

Lim, Chung S; Kiriakidis, Serafim; Paleolog, Ewa M; Davies, Alun H

2013-06-01

459

Calculation of periodic trajectories  

SciTech Connect

Methods are presented for calculating classical periodic trajectories in a two-dimensional non-integrable potential problem. The main one is the monodromy method, which consists in refining an approximate solution by using a ''once-around-the-trajectory'' procedure. This can be done either for a given period or for a given energy. Other methods proceed by searching on the initial conditions until the trajectory closes. We also discuss how to find new periodic families, particularly branchings from already known families, and how to get started when no families are known.

Baranger, M.; Davies, K.T.R.; Mahoney, J.H.

1988-08-15

460

Periodically poled silicon  

NASA Astrophysics Data System (ADS)

We propose a new class of photonic devices based on periodic stress fields in silicon that enable second-order nonlinearity as well as quasi-phase matching. Periodically poled silicon (PePSi) adds the periodic poling capability to silicon photonics and allows the excellent crystal quality and advanced manufacturing capabilities of silicon to be harnessed for devices based on second-order nonlinear effects. As an example of the utility of the PePSi technology, we present simulations showing that midwave infrared radiation can be efficiently generated through difference frequency generation from near-infrared with a conversion efficiency of 50%.

Hon, Nick K.; Tsia, Kevin K.; Solli, Daniel R.; Jalali, Bahram

2009-03-01

461

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

462

Keep Kids' Mouths Healthy: Floss Every Day  

MedlinePLUS

... gum disease. More about Dental Visits Floss Every Day As soon as two teeth touch each other ( ... Dentist Floss Every Day Use Fluoride Floss Every Day Kids should clean between their teeth once a ...

463

76 FR 70631 - World Freedom Day, 2011  

Federal Register 2010, 2011, 2012, 2013

...Proclamation 8752--World Freedom Day, 2011 Presidential Documents...Proclamation 8752 of November 8, 2011 World Freedom Day, 2011 By the President of...a stronger affirmation of freedom. On World Freedom Day, we commemorate the fall...

2011-11-14

464

Treatment of streptococcal pharyngitis with amoxycillin once a day  

Microsoft Academic Search

OBJECTIVE--To evaluate treatment of group A beta haemolytic streptococcal pharyngitis with amoxycillin once daily compared with phenoxymethylpenicillin three or four times a day. DESIGN--Randomised controlled study of consecutive patients presenting with symptoms suggestive of group A beta haemolytic streptococcal pharyngitis in whom culture of a throat swab yielded positive results. SETTING--Five family medicine practices. SUBJECTS--157 patients aged over 3 years

P Shvartzman; H Tabenkin; A Rosentzwaig; F Dolginov

1993-01-01

465

The Earth and Sky in a 24 Hour Day  

NSDL National Science Digital Library

This is an indoor and outdoor activity where students understand the distance the earth is from the sun. The students understand that the earth rotates on it's axis once in a 24 hour period thus providing us with day and night.

466

Increasing fall fruit production in short-day strawberries  

Technology Transfer Automated Retrieval System (TEKTRAN)

In the mid-Atlantic coast region of the United States (30 deg N, 77 deg W), the harvest period for short-day (SD) strawberry cultivars is only 7 weeks long from early May to late June. Strawberry transplants from a new propagation technique that improves fall flowering were grown under high tunnel ...

467

Day-to-day variability in the development of plasma bubbles associated with geomagnetic disturbances  

NASA Astrophysics Data System (ADS)

The development of equatorial ionospheric irregularities into large-scale ionospheric plasma bubbles continues to be an active area for scientific investigations. In this paper, we present simultaneous OI 630.0-nm emission all-sky imaging observations carried out at the Astrophysics National Laboratory (LNA), Brazopolis (22.5°S, 45.6°W, altitude 1860 m) and ionospheric sounding observations carried out at Palmas (10.2°S, 48.2°W located close to the magnetic equator) and Sao Jose dos Campos (23.2°S, 45.9°W located under the southern crest of equatorial ionospheric anomaly, close to Brazopolis), Brazil, to study the day-to-day variability in the development of ionospheric plasma bubbles during both geomagnetically disturbed and quiet