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Sample records for equatorial station fortaleza

  1. Fortaleza Station Report for 2012

    Science.gov (United States)

    Kaufmann, Pierre; Pereira de Lucena, A. Macilio; Sombra da Silva, Adeildo

    2013-01-01

    This is a brief report about the activities carried out at the Fortaleza geodetic VLBI station (ROEN: R´adio Observat´orio Espacial do Nordeste), located in Eus´ebio, CE, Brazil, during the period from January until December 2012. The observing activities were resumed in May after the major maintenance that comprised the azimuth bearing replacement. The total observational experiments consisted of 103 VLBI sessions and continuous GPS monitoring recordings.

  2. Progress at ROEN - Fortaleza Geodetic Station

    Science.gov (United States)

    Kaufman, Pierre; Macilio Pereira de Lucena, A.; Tateyama, Claudio E.

    1999-08-01

    This report presents the works developed at ROEN: Radio-Observatorio Espacial do Nordeste, Eusebio near Fortaleza, CE, Brazil, in 1998. Activities were related to observing sessions, major maintenance items, and scientific results obtained.

  3. Equatorial wave activity during 2007 over Gadanki, a tropical station

    Indian Academy of Sciences (India)

    been used to investigate the wave activity in the troposphere and lower stratosphere. Waves in the ...... Oltmans S J 2001 Water vapor control at the tropopause by equatorial Kelvin .... observed in UARS microwave limb sounder temperature.

  4. Variability in foF2 at an equatorial station and the influence of magnetic activity

    International Nuclear Information System (INIS)

    Adeniyi, J.O.; Radicella, S.M.

    2003-01-01

    Variability in foF2 is investigated for an equatorial station in the African region. Variability during the day time at high solar activity varies between 10 and 30 percent. It varies between 10 and 20 percent at high solar activity. Magnetic storms increase the variability at both solar activity periods. (author)

  5. Day-to-day correlation of equatorial electrojet at two stations separated by 2000 km

    Directory of Open Access Journals (Sweden)

    R. G. Rastogi

    2007-05-01

    Full Text Available Day-to-day fluctuations of the daily range of the geomagnetic field H at the equatorial electrojet stations Ancon (ANC, 77.0° W and Sao Luis (SLZ, 44.2° W are described for the period January–June 1993. The H field started increasing between midnight and sunrise, reaching a peak shortly before noon. The daily range of H was maximum during March and April and minimum during June. Regardless of the month, the range in H was significantly larger at ANC than at SLZ. The 27-day running mean of the range of H varied from 80 nT to 125 nT at SLZ and from 105 nT to 180 nT at ANC. The day-to-day values of the range of H showed very faithful variations at the two stations. The deviations of the daily range of H from its 27-day running mean values showed good correlation between the two stations. Some large storm-time effects were seen at both stations. The correlation was still significant, when data were corrected for Dst index values. It is suggested that the range in H at the two electrojet stations, separated by more than 2000 km, are affected by some common sources other than the ring current, which need to be identified. Spectral analysis of the range of H shows remarkable similarity at the two stations, with a dominant period of 15 days at both stations.

  6. Equatorial night-time spread-F characteristics observed from stations in the Western Pacific

    International Nuclear Information System (INIS)

    Huang Tianxi

    1985-01-01

    A comparative study of the ionospheric spread-F observed at an equatorial station. Port Moresby (9 0 24.5'S, 147 0 9.9'E; magn. Dip lat. 18 0 S), Papua new Guinea, with corresponding data from the East Asian stations during a period 27 May-19 Jun 1983, as well as the same periods for 1981 and 1982, is presented. The Port Moresby spread-F condition is particularly outstanding and persistent at night and the occurrence of spread-F between 23 LT and 05 LT near June solstice is very high, reaching 100% of all observed nights. The latitudinal variation of nocturnal spread-F, its duration and connection with sunspot number are analyzed. The relationship between long-term variation of night-time spread-F occurrence and solar activity during June and December solstices from 1954 up to 1984 at a typical lower magnetic latitudinal station. Wuhan (30 0 32.7'N, 114 0 21.5'E; magn. dip lat. 26 0 N), is also investigated. (author)

  7. Geomagnetic field variations at the equatorial electrojet station in Sri Lanka, Peredinia

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    R. G. Rastogi

    2004-09-01

    Full Text Available The paper discusses the variations of the horizontal (H, vertical (Z and eastward (Y components of the geomagnetic field at Peredinia (PRD, an electrojet station in Sri Lanka, with the time of the day, season, sudden commencement (SSC and during geomagnetic storms. The daily variation of H showed a large peak around midday. The daily variation of Z appeared to be almost a time gradient curve of the daily variation of H, showing a maximum around 09:00 LT (75° EMT when the H field was increasing fastest and not at noon when Δ H was the maximum. Storm time variation of H resembled the variation of the Dst index but that of Z showed a large minimum about 2-3h before the time of minimum Dst or at the time of maximum time gradient of Dst variation. These features are compared with corresponding variations at the equatorial stations Trivandrum (TRD in India, and remarkable similarity in all observations is noticed at PRD and TRD. It is suggested that the observed abnormal features of Z variations at electrojet stations in India-Sri Lanka are due to (i direct effect of the ionospheric electrojet current (ii the induction effect of the image current by the average spatially extended conductivity region and (iii the induction current in the local subsurface conductor. It is suggested that the conductor responsible for the observed features in Z in India and Sri Lanka has to have extended spatial domain to latitudes well south of India, rather than confined to narrow Palk Strait.

  8. F2 layer characteristics and electrojet strength over an equatorial station

    Science.gov (United States)

    Adebesin, B. O.; Adeniyi, J. O.; Adimula, I. A.; Reinisch, B. W.; Yumoto, K.

    2013-09-01

    The data presented in this work describes the diurnal and seasonal variation in hmF2, NmF2, and the electrojet current strength over an African equatorial station during a period of low solar activity. The F2 region horizontal magnetic element H revealed that the Solar quiet Sq(H) daily variation rises from early morning period to maximum around local noon and falls to lower values towards evening. The F2 ionospheric current responsible for the magnetic field variations is inferred to build up at the early morning hours, attaining maximum strength around 1200 LT. The Sq variation across the entire months was higher during the daytime than nighttime. This is ascribed to the variability of the ionospheric parameters like conductivity and winds structure in this region. Seasonal daytime electrojet (EEJ) current strength for June solstice, March and September equinoxes, respectively had peak values ranging within 27-35 nT (at 1400 LT) , 30-40 nT (at 1200 LT) and 35-45 nT (at 1500 LT). The different peak periods of the EEJ strength were attributed to the combined effects of the peak electron density and electric field. Lastly, the EEJ strength was observed to be higher during the equinoxes than the solstice period.

  9. Comparison of equatorial GPS-TEC observations over an African station and an American station during the minimum and ascending phases of solar cycle 24

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    A. O. Akala

    2013-11-01

    Full Text Available GPS-TEC data were observed at the same local time at two equatorial stations on both longitudes: Lagos (6.52° N, 3.4° E, 3.04° S magnetic latitude, Nigeria; and Pucallpa (8.38° S, 74.57° W, 4.25° N magnetic latitude, Peru during the minimum (2009, 2010 and ascending (2011 phases of solar cycle 24. These data were grouped into daily, seasonal and solar activity sets. The day-to-day variations in vertical TEC (VTEC recorded the maximum during 14:00–16:00 LT and minimum during 04:00–06:00 LT at both longitudes. Seasonally, during solar minimum, maximum VTEC values were observed during March equinox and minimum during solstices. However, during the ascending phase of the solar activity, the maximum values were recorded during the December solstice and minimum during the June solstice. VTEC also increased with solar activity at both longitudes. On longitude by longitude comparison, the African GPS station generally recorded higher VTEC values than the American GPS station. Furthermore, harmonic analysis technique was used to extract the annual and semi-annual components of the amplitudes of the TEC series at both stations. The semi-annual variations dominated the TEC series over the African equatorial station, while the annual variations dominated those over the American equatorial station. The GPS-TEC-derived averages for non-storm days were compared with the corresponding values derived by the IRI-2007 with the NeQuick topside option. The NeQuick option of IRI-2007 showed better performance at the American sector than the African sector, but generally underestimating TEC during the early morning hours at both longitudes.

  10. Seasonal, Diurnal, and Solar-Cycle Variations of Electron Density at Two West Africa Equatorial Ionization Anomaly Stations

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    Frédéric Ouattara

    2012-01-01

    Full Text Available We analyse the variability of foF2 at two West Africa equatorial ionization anomaly stations (Ouagadougou and Dakar during three solar cycles (from cycle 20 to cycle 22, that is, from 1966 to 1998 for Ouagadougou and from 1971 to 1997 for Dakar. We examine the effect of the changing levels of solar extreme ultraviolet radiation with sunspot number. The study shows high correlation between foF2 and sunspot number (Rz. The correlation coefficient decreases from cycle 20 to cycle 21 at both stations. From cycle 21 to cycle 22 it decreases at Ouagadougou station and increases at Dakar station. The best correlation coefficient, 0.990, is obtained for Dakar station during solar cycle 22. The seasonal variation displays equinoctial peaks that are asymmetric between March and September. The percentage deviations of monthly average data from one solar cycle to another display variability with respect to solar cycle phase and show solar ultraviolet radiation variability with solar cycle phase. The diurnal variation shows a noon bite out with a predominant late-afternoon peak except during the maximum phase of the solar cycle. The diurnal Ouagadougou station foF2 data do not show a significant difference between the increasing and decreasing cycle phases, while Dakar station data do show it, particularly for cycle 21. The percentage deviations of diurnal variations from solar-minimum conditions show more ionosphere during solar cycle 21 at both stations for all three of the other phases of the solar cycle. There is no significant variability of ionosphere during increasing and decreasing solar cycle phases at Ouagadougou station, but at Dakar station there is a significant variability of ionosphere during these two solar-cycle phases.

  11. Magnetic storm effect on the occurrence of ionospheric irregularities at an equatorial station in the African sector

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    Olushola Abel Oladipo

    2014-01-01

    Full Text Available Large-scale ionospheric irregularities usually measured by GPS TEC fluctuation indices are regular occurrence at the equatorial region shortly after sunset around solar maximum. Magnetic storm can trigger or inhibit the generation of these irregularities depending on the local time the main phase of a particular storm occurs. We studied the effect of nine (9 distinct storms on the occurrence of ionospheric irregularities at Fraceville in Gabon (Lat = −1.63˚, Long = 13.55˚, dip lat. = −15.94˚, an equatorial station in the African sector. These storms occurred between November 2001 and September 2002. We used TEC fluctuation indices (i.e. ROTI and ROTIAVE estimated from 30 s interval Rinex data and also we used the storm indices (i.e. Dst, dDst/dt, and IMF BZ to predict the likely effect of each storm on the irregularities occurrence at this station. The results obtained showed that most of the storms studied inhibited ionospheric irregularities. Only one out of all the storms studied (i.e. September 4, 2002 storms with the main phase on the night of September 7-8 triggered post-midnight ionospheric irregularities. There are two of the storms during which ionospheric irregularities were observed. However, these may not be solely attributed to the storms event because the level of irregularities observed during these two storms is comparable to that observed during previous days before the storms. For this station and for the storms investigated, it seems like a little modification to the use of Aarons categories in terms of the local time the maximum negative Dst occurs could lead to a better prediction. However, it would require investigating many storms during different level of solar activities and at different latitudes to generalize this modification.

  12. Relation of decorrelated transionospheric GPS signal fluctuations from two stations in the northern anomaly crest region with equatorial ionospheric dynamics

    Science.gov (United States)

    Paul, K. S.; Paul, A.

    2017-05-01

    The ionosphere around the northern crest of the equatorial ionization anomaly (EIA) and beyond exhibits rapid temporal as well as spatial development of ionization density irregularities during postsunset hours. A GPS campaign was conducted during September 2012 and April 2013 from the Institute of Radio Physics and Electronics, Calcutta (22.58°N, 88.38°E geographic; magnetic dip: 32°N), and North Bengal University (NBU), Siliguri (26.72°N, 88.39°E geographic, magnetic dip: 39.49°N) in India in order to assess and quantify differences, if any, in the nature of carrier to noise ratio (C/N0) fluctuations observed on the same satellite link around the same time interval from these stations. Significant decorrelation of the received signals was found when tracking the same satellite vehicle (SV) link from these stations during periods of scintillations. Low values of correlation coefficient of C/N0 at L1 frequency recorded on the same SV link at these two stations were found to correspond with high irregularity characteristic velocities. North-south spatial displacement rates of the impact of ionospheric irregularities were calculated based on coordinated GPS observations which followed an increasing trend with irregularity characteristic velocities measured at VHF. Values of characteristic velocities in excess of 36 m/s were also found to result in large receiver position deviations 3.5-4.0 m during periods of scintillations. Information related to time lag associated with occurrence of scintillations on the same SV link observed from two stations could be useful for improving performance of transionospheric satellite-based position determination techniques.

  13. West African equatorial ionospheric parameters climatology based on Ouagadougou ionosonde station data from June 1966 to February 1998

    Directory of Open Access Journals (Sweden)

    F. Ouattara

    2009-06-01

    Full Text Available This study is the first which gives the climatology of West African equatorial ionosphere by using Ouagadougou station through three solar cycles. It has permitted to show the complete morphology of ionosphere parameters by analyzing yearly variation, solar cycle and geomagnetic activity, seasonal evolution and diurnal development. This work shows that almost all ionospheric parameters have 11-year solar cycle evolution. Seasonal variation shows that only foF2 exhibits annual, winter and semiannual anomaly. foF2 seasonal variation has permitted us to identify and characterize solar events effects on F2 layer in this area. In fact (1 during quiet geomagnetic condition foF2 presents winter and semiannual anomalies asymmetric peaks in March/April and October. (2 The absence of winter anomaly and the presence of equinoctial peaks are the most visible effects of fluctuating activity in foF2 seasonal time profiles. (3 Solar wind shock activity does not modify the profile of foF2 but increases ionization. (4 The absence of asymmetry peaks, the location of the peaks in March and October and the increase of ionization characterize recurrent storm activity. F1 layers shows increasing trend from cycle 20 to cycle 21. Moreover, E layer parameters seasonal variations exhibit complex structure. It seems impossible to detect fluctuating activity effect in E layer parameters seasonal variations but shock activity and wind stream activity act to decrease E layer ionization. It can be seen from Es layer parameters seasonal variations that wind stream activity effect is fairly independent of solar cycle. E and Es layers critical frequencies and virtual heights diurnal variations let us see the effects of the greenhouse gases in these layers.

  14. Representativeness and climatology of carbon monoxide and ozone at the global GAW station Mt. Kenya in equatorial Africa

    Directory of Open Access Journals (Sweden)

    S. Henne

    2008-06-01

    Full Text Available The tropics strongly influence the global atmospheric chemistry budget. However, continuous in-situ observations of trace gases are rare especially in equatorial Africa. The WMO Global Atmosphere Watch (GAW programme aimed to close this gap with the installation of the Mt. Kenya (MKN baseline station. Here, the first continuous measurements of carbon monoxide (CO and ozone (O3 at this site covering the period June 2002 to June 2006 are presented. The representativeness of the site was investigated by means of statistical data analysis, air mass trajectory clustering, interpretation of biomass burning variability and evaluation of O3-CO relationships. Because of its location in eastern equatorial Africa, the site was rarely directly influenced by biomass burning emissions, making it suitable for background observations. Located at 3678 m above sea level the night-time (21:00–04:00 UTC measurements of CO and O3 were in general representative of the free troposphere, while day-time measurements were influenced by atmospheric boundary layer air. Increased night-time concentrations were observed in 25% of all nights and associated with residual layers of increased CO and water vapour in the free troposphere. Six representative flow regimes towards Mt. Kenya were determined: eastern Africa (21% of the time, Arabian Peninsula and Pakistan (16%, northern Africa free tropospheric (6%, northern Indian Ocean and India (17%, south-eastern Africa (18% and southern India Ocean (21% flow regimes. The seasonal alternation of these flow regimes was determined by the monsoon circulation and caused a distinct semi-annual cycle of CO with maxima during February (primary and August (secondary, annually variable and with minima in April (primary and November (secondary, annually variable. O3 showed a weaker annual cycle with a minimum in November and a broad summer maximum. Inter-annual variations were explained with

  15. The topside ionospheric effective scale heights (HT) derived with ROCSAT-1 and ground-based Ionosonde observations at equatorial and mid-latitude stations

    Science.gov (United States)

    Ram Sudarsanam, Tulasi; Su, Shin-Yi; Liu, C. H.; Reinisch, Bodo

    In this study, we propose the assimilation of topside in situ electron density data from ROCSAT-1 satellite along with the ionosonde measurements for accurate determination of topside iono-spheric effective scale heights (HT) using -Chapman function. The reconstructed topside elec-tron density profiles using these scale heights exhibit an excellent similitude with Jicamarca Incoherent Scatter Radar (ISR) profiles, and are much better representations than the existing methods of Reinisch-Huang method and/or the empirical IRI-2007 model. The main advan-tage with this method is that it allows the precise determination of the effective scale height (HT) and the topside electron density profiles at a dense network of ionosonde/digisonde sta-tions where no ISR facilities are available. The demonstration of the method is applied by investigating the diurnal, seasonal and solar activity variations of HT over the dip-equatorial station Jicamarca and the mid-latitude station Grahamstown. The diurnal variation of scale heights over Jicamarca consistently exhibits a morning time descent followed by a minimum around 0700-0800 LT and a pronounced maximum at noon during all the seasons of both high and moderate solar activity periods. Further, the scale heights exhibit a secondary maximum during the post-sunset hours of equinoctial and summer months, whereas the post-sunset peak is absent during the winter months. These typical features are further investigated using the topside ion properties obtained by ROCSAT-1 as well as SAMI2 model simulations. The re-sults consistently indicate that the diurnal variation of the effective scale height (HT) does not closely follow the plasma temperature variation and at equatorial latitudes is largely controlled by the vertical ExB drift.

  16. Variations of TEC near the Indian Equatorial Ionospheric anomaly (EIA) stations by GPS measurements during descending phase of solar activity (2005 -2009)

    Science.gov (United States)

    Kumar, Sanjay; Singh, Abhay Kumar

    The dual frequency Global Positioning System (GPS) data recorded at Varanasi (geographic latitude 250, 16 N longitude 820, 59 E) and Kanpur (geographic latitude 260, 30 N longitude 800, 12 E) stations, near the equatorial ionosphere anomaly (EIA) in India, have been analyzed to retrieve total electron content (TEC). The daily peak value of vertical total electron content (VTEC) has been utilized to study the variability of EIA. Present paper studied monthly, seasonal and annual variations as well as solar and geomagnetic effects on EIA. It has been found that EIA yield their maximum values during the equinox months and minimum during summer and winter. The correlations of EIA with solar as well as geomagnetic indices have been also discussed. Key words: Total electron contents (TECs), EIA, GPS.

  17. Equatorial Guinea.

    Science.gov (United States)

    1989-03-01

    Equatorial Guinea is situated on the Gulf of Guinea along the west African coast between Cameroon and Gabon. The people are predominantly of Bantu origin. The country's ties with Spain are significant; in 1959, it became the Spanish Equatorial region ruled by Spain's commissioner general. Recent political developments in Equatorial Guinea include the formation of the Democratic Party for Equatorial Guinea in July of 1987 and the formation of a 60-member unicameral Chamber of Representatives of the People in 1983. Concerning the population, 83% of the people are Catholic and the official language is Spanish. Poverty and serious health, education and sanitary problems exist. There is no adequate hospital and few trained physicians, no dentists, and no opticians. Malaria is endemic and immunization for yellow fever is required for entrance into the country. The water is not potable and many visitors to the country bring bottled water. The tropical climate of Equatorial Guinea provides the climate for the country's largest exports and source of economy; cacao, wood and coffee. Although the country, as a whole, has progressed towards developing a participatory political system, there are still problems of governmental corruption in the face of grave health and welfare conditions. In recent years, the country has received assistance from the World Bank and the United States to aid in its development.

  18. Occurrence and zonal drifts of small-scale ionospheric irregularities over an equatorial station during solar maximum - Magnetic quiet and disturbed conditions

    Science.gov (United States)

    Muella, M. T. A. H.; de Paula, E. R.; Kantor, I. J.; Rezende, L. F. C.; Smorigo, P. F.

    2009-06-01

    A statistical study of L-band amplitude scintillations and zonal drift velocity of Fresnel-scale ionospheric irregularities is presented. Ground-based global positioning system (GPS) data acquired at the equatorial station of São Luís (2.33°S, 44.21°W, dip latitude 1.3°S), Brazil, during the solar maximum period from March 2001 to February 2002 are used in the analysis. The variation of scintillations and irregularity drift velocities with local time, season and magnetic activity are reported. The results reveal that for the near overhead ionosphere (satellite elevation angle >45°) a broad maximum in the occurrence of scintillation is seen from October to February. In general, weak scintillations (S 4 90%) during equinox (March-April; September-October) and December solstice (November-February) quiet time conditions and, many of the scintillations, occurred during pre-midnight hours. The mean zonal velocities of the irregularities are seen to be ˜30 m s -1 larger near December solstice, while during the equinoctial period the velocities decay faster and the scintillations tend to cease earlier. On geomagnetically disturbed nights, scintillation activity seems to be strongly affected by the prompt penetration of magnetospheric electric fields and disturbance dynamo effects. On disturbed days, during the equinox and December solstice seasons, the scintillations tend to be suppressed in the pre-midnight hours, whereas during June solstice months (May-August) the effect is opposite. In the post-midnight period, the mostly marked increase in the scintillation occurrence is observed during the equinox months. The results show that during disturbed conditions only one type of storm (when the main phase maximum takes place during the daytime hours) agrees with the Aarons' description, that is the suppression of L-band scintillations in the first recovery phase night. The results also reveal that the storm-time irregularity drifts become more spread in velocity and

  19. Multi-technique investigations of storm-time ionospheric irregularities over the São Luís equatorial station in Brazil

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    E. R. de Paula

    2004-11-01

    Full Text Available On 11 April 2001, a large magnetic storm occurred with SSC at 13:43 UT, and Dst reached below -200nT after two southward Bz excursions. The Kp index during this storm reached 8 and remained high (>4 for about 21h, and the São Luís magnetometer H component presented simultaneous oscillations and decreased substantially relative to the previous magnetically quiet days. This storm triggered strong ionospheric irregularities, as observed by a recently installed 30MHz coherent scatter radar, a digisonde, and a GPS scintillation receiver, all operating at the São Luís equatorial station (2.33° S, 44° W, dip latitude 1.3° S. The ionospheric conditions and the characteristics of the ionospheric irregularities observed by these instruments are presented and discussed. The VHF radar RTI (Range Time Intensity echoes and their power spectra and spectral width for the storm night 11-12 April 2001, were used to analyse the nature and dynamics of the plasma irregularities and revealed the coexistence of many structures in the altitudinal range of 400-1200km, some locally generated and others that drifted from other longitudinal sectors. The radar data also revealed that the plumes had periodic eastward and westward zonal velocities after 22:20 UT, when well-developed quiet-time plumes typically drift eastward. Another interesting new observation is that the F-layer remained anomalously high throughout the 11-12 April 2001 storm night (21:00 UT to 09:00 UT next day (the LT at São Luís is UT -3h, as indicated by the digisonde parameters hmF2 and h'F, which is a condition favourable for spread F generation and maintenance. The AE auroral index showed enhancements (followed by decreases that are indicative of magnetospheric convection enhancements at about 15:00 UT, 20:00 UT and 22:00 UT on 11 April 2001 and at 00:20 UT (small amplitude on 12 April 2001, associated with many Bz fluctuations, including clear two southward incursions that gave rise

  20. Multi-technique investigations of storm-time ionospheric irregularities over the São Luís equatorial station in Brazil

    Directory of Open Access Journals (Sweden)

    E. R. de Paula

    2004-11-01

    Full Text Available On 11 April 2001, a large magnetic storm occurred with SSC at 13:43 UT, and Dst reached below -200nT after two southward Bz excursions. The Kp index during this storm reached 8 and remained high (>4 for about 21h, and the São Luís magnetometer H component presented simultaneous oscillations and decreased substantially relative to the previous magnetically quiet days. This storm triggered strong ionospheric irregularities, as observed by a recently installed 30MHz coherent scatter radar, a digisonde, and a GPS scintillation receiver, all operating at the São Luís equatorial station (2.33° S, 44° W, dip latitude 1.3° S. The ionospheric conditions and the characteristics of the ionospheric irregularities observed by these instruments are presented and discussed. The VHF radar RTI (Range Time Intensity echoes and their power spectra and spectral width for the storm night 11-12 April 2001, were used to analyse the nature and dynamics of the plasma irregularities and revealed the coexistence of many structures in the altitudinal range of 400-1200km, some locally generated and others that drifted from other longitudinal sectors. The radar data also revealed that the plumes had periodic eastward and westward zonal velocities after 22:20 UT, when well-developed quiet-time plumes typically drift eastward. Another interesting new observation is that the F-layer remained anomalously high throughout the 11-12 April 2001 storm night (21:00 UT to 09:00 UT next day (the LT at São Luís is UT -3h, as indicated by the digisonde parameters hmF2 and h'F, which is a condition favourable for spread F generation and maintenance. The AE auroral index showed enhancements (followed by decreases that are indicative of magnetospheric convection enhancements at about 15:00 UT, 20:00 UT and 22:00 UT on 11 April 2001 and at 00:20 UT (small amplitude on 12 April 2001, associated with many

  1. Observations and model calculations of an additional layer in the topside ionosphere above Fortaleza, Brazil

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    B. Jenkins

    1997-06-01

    Full Text Available Calculations using the Sheffield University plasmasphere ionosphere model have shown that under certain conditions an additional layer can form in the low latitude topside ionosphere. This layer (the F3 layer has subsequently been observed in ionograms recorded at Fortaleza in Brazil. It has not been observed in ionograms recorded at the neighbouring station São Luis. Model calculations have shown that the F3 layer is most likely to form in summer at Fortaleza due to a combination of the neutral wind and the E×B drift acting to raise the plasma. At the location of São Luis, almost on the geomagnetic equator, the neutral wind has a smaller vertical component so the F3 layer does not form.

  2. As cidades da juventude em Fortaleza

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    Francisco José Gomes Damasceno

    2007-06-01

    Full Text Available A cidade de Fortaleza é apresentada a partir da experiência juvenil, de suas organizações, de seus deslocamentos e de suas formas específicas de apropriação da cidade.Desta observação delineio a idéia de Experiência Musical e de Deslocamentos Geo-Estéticos na cidade. As organizações e experiências juvenis são tomadas como reveladoras de outros possíveis e suas movimentações como manifestação do "novo" urbano contemporâneo.The city of Fortaleza is presented through the juvenile experience of its organizations, its displacements and its specific city appropriation ways. It is from this observation that I take the idea of Musical Experience and the Geo-esthetic Displacements of the city. The organizations and juvenile experiences are considered to be revealing of other possibilities and their movements, as a manifestation of the "new" contemporary urbanity.

  3. The D1 parameter for the equatorial F1 region

    International Nuclear Information System (INIS)

    Adeniyi, J.O.; Radicella, S.M.

    2002-01-01

    This work is a contribution to the effort at improving the representation of the F1 equatorial ionospheric region in the International Reference Ionosphere (IRI) model. The D1 parameter has been proposed for describing the F1 layer. We have therefore produced a maiden table of D1 parameter for an equatorial station. Diurnal and seasonal effects were considered. (author)

  4. Characteristics of Total Electron Content (TEC) observed from a chain of stations near the northern crest of the Equatorial Ionization Anomaly (EIA) along 88.5°E meridian in India

    Science.gov (United States)

    Paul, K. S.; Das, A.; Ray, S.; Paul, A.

    2016-01-01

    The equatorial ionosphere presents some of the highest TEC values in the world coupled with observations of periodic structures. Total Electron Content (TEC) and scintillation data were analyzed from a chain of stations Calcutta (22.58°N, 88.38°E geographic; 32°N magnetic dip), Baharampore (24.09°N, 88.25°E geographic; 35°N magnetic dip) and Farakka (24.79°N, 87.89°E geographic; 36.04°N magnetic dip) situated almost same meridian (88.5°E) during September 2011 and March-April 2012 for elevation greater than 20° so that the ionosphere can be tracked from the 15.50°N south of Calcutta to 31.80°N north of Farakka. Periodic variation of TEC was noticed before TEC bite out, predominantly within a particular latitudinal swath (19°N ‒26°N) along 88.5°E meridian. No periodic structures were observed over the magnetic equator during the observation period on ionosonde records from the magnetic equator station Trivandrum and COSMIC, GRACE and C/NOFS electron density measurements. The present paper reports, perhaps for the first time from the Indian longitude sector, confinement of such periodic structures in TEC primarily within a latitude swath of 19.00-26.00 °N almost along the same longitude of 88.5 °E.

  5. Fortalezas internas y externas de adolescentes que no consumen alcohol

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    Mydori Harumi Téllez Vásquez

    2017-06-01

    Full Text Available Introducción: el consumo de alcohol en adolescentes mexicanos es un problema de salud pública, que requiere enfocar los esfuerzos de investigación en la prevención. Este estudio se basa en el modelo de fortalezas de Benson (2007, quien plantea que los jóvenes poseen recursos individuales y contextuales que promueven un desarrollo positivo y limitan el involucramiento en conductas de riesgo. Objetivo: analizar las diferencias en fortalezas internas y externas entre estudiantes de secundaria que presentan diferentes niveles de consumo de alcohol. Metodo: participaron 990 estudiantes de secundarias públicas de la Ciudad de México, 52.1% mujeres y 47.9% hombres, de una media de edad de 13.6 años. Se evaluaron siete fortalezas internas y siete externas. Resultados: 53.9% de los participantes nunca ha usado alcohol, 28.3% sí lo ha consumido pero nunca o sólo una vez ha abusado, y 17.8% reportó haber abusado del consumo en el último mes. Hombres y mujeres que no han usado alcohol reportaron puntajes significativamente más altos en fortalezas internas. En el caso de las fortalezas externas, los jóvenes sin consumo fueron los que obtuvieron puntajes más altos, excepto en amigos saludables (tanto hombres como mujeres, y en apoyo y supervisión del padre (hombres. Conclusiones: los resultados contribuyen a la explicación del consumo de alcohol en jóvenes y proporcionan elementos para el diseño de intervenciones, pues señalan las fortalezas que deben promoverse para evitar que los jóvenes consuman alcohol a edades tempranas.

  6. Intermonsoonal equatorial jets

    Digital Repository Service at National Institute of Oceanography (India)

    Muraleedharan, P.M.

    , respectively. Hydrographic features and transport computations favour a well developed equatorial jet during both seasons. The net surface eastward and subsurface westward flows are well balanced during the premonsoon transition period and appear...

  7. Determinants of tuberculosis transmission and treatment abandonment in Fortaleza, Brazil.

    Science.gov (United States)

    Harling, Guy; Lima Neto, Antonio S; Sousa, Geziel S; Machado, Marcia M T; Castro, Marcia C

    2017-05-25

    Tuberculosis (TB) remains a public health problem, despite recent achievements in reducing incidence and mortality rates. In Brazil, these achievements were above the worldwide average, but marked by large regional heterogeneities. In Fortaleza (5th largest city in Brazil), the tuberculosis cure rate has been declining and treatment abandonment has been increasing in the past decade, despite a reduction in incidence and an increase in directly observed therapy (DOT). These trends put efforts to eliminate tuberculosis at risk. We therefore sought to determine social and programmatic determinants of tuberculosis incidence and treatment abandonment in Fortaleza. We analyzed sociodemographic and clinical data for all new tuberculosis cases notified in the Notifiable Diseases Information System (SINAN) from Fortaleza between 2007 and 2014. We calculated incidence rates for 117 neighborhoods in Fortaleza, assessed their spatial clustering, and used spatial regression models to quantify associations between neighborhood-level covariates and incidence rates. We used hierarchical logistic regression models to evaluate how individual- and neighborhood-level covariates predicted tuberculosis treatment abandonment. There were 12,338 new cases reported during the study period. Case rates across neighborhoods were significantly positively clustered in two low-income areas close to the city center. In an adjusted model, tuberculosis rates were significantly higher in neighborhoods with lower literacy, higher sewerage access and homicide rates, and a greater proportion of self-reported black residents. Treatment was abandoned in 1901 cases (15.4%), a rate that rose by 71% between 2007 and 2014. Abandonment was significantly associated with many individual sociodemographic and clinical factors. Notably, being recommended for DOT was protective for those who completed DOT, but associated with abandonment for those who did not. Low socioeconomic status areas have higher tuberculosis

  8. Global mode of Pi2 waves in the equatorial region

    International Nuclear Information System (INIS)

    Kitamura, Tai-ichi; Saka, Ousuke; Shimoizumi, Masashi

    1988-01-01

    Fluxgate magnetometers with accurate timing data logger were set up at two equatorial stations (Garous-Marous and Huancayo), and also at a middle latitude station (Kuju). The phase of Pi2 waves is compared among these stations. It is found that 1) Pi2 pulsations in low and equatorial latitudes are linearly polarized approximately along the magnetic meridian, 2) phase difference of the H component of Pi2 waves at different stations is much less than 1 - 10 of the pulsation period despite a large longitudinal separation (∼ 90 deg) of the stations, showing the so-called azimuthal wave number, m, to be much less than unity and 3) phase difference of the D component at different stations is variable. (author)

  9. Determinants of tuberculosis transmission and treatment abandonment in Fortaleza, Brazil

    Directory of Open Access Journals (Sweden)

    Guy Harling

    2017-05-01

    Full Text Available Abstract Background Tuberculosis (TB remains a public health problem, despite recent achievements in reducing incidence and mortality rates. In Brazil, these achievements were above the worldwide average, but marked by large regional heterogeneities. In Fortaleza (5th largest city in Brazil, the tuberculosis cure rate has been declining and treatment abandonment has been increasing in the past decade, despite a reduction in incidence and an increase in directly observed therapy (DOT. These trends put efforts to eliminate tuberculosis at risk. We therefore sought to determine social and programmatic determinants of tuberculosis incidence and treatment abandonment in Fortaleza. Methods We analyzed sociodemographic and clinical data for all new tuberculosis cases notified in the Notifiable Diseases Information System (SINAN from Fortaleza between 2007 and 2014. We calculated incidence rates for 117 neighborhoods in Fortaleza, assessed their spatial clustering, and used spatial regression models to quantify associations between neighborhood-level covariates and incidence rates. We used hierarchical logistic regression models to evaluate how individual- and neighborhood-level covariates predicted tuberculosis treatment abandonment. Results There were 12,338 new cases reported during the study period. Case rates across neighborhoods were significantly positively clustered in two low-income areas close to the city center. In an adjusted model, tuberculosis rates were significantly higher in neighborhoods with lower literacy, higher sewerage access and homicide rates, and a greater proportion of self-reported black residents. Treatment was abandoned in 1901 cases (15.4%, a rate that rose by 71% between 2007 and 2014. Abandonment was significantly associated with many individual sociodemographic and clinical factors. Notably, being recommended for DOT was protective for those who completed DOT, but associated with abandonment for those who did not

  10. Proton flux under radiation belts: near-equatorial zone

    International Nuclear Information System (INIS)

    Grigoryan, O.R.; Panasyuk, M.I.; Petrov, A.N.; Kudela, K.

    2005-01-01

    In this work the features of low-energy proton flux increases in near-equatorial region (McIlvein parameter L th the proton flux (with energy from tens keV up to several MeV) increases are registering regularly. However modern proton flux models (for example AP8 model) works at L>1.15 only and does not take into account near-equatorial protons. These fluxes are not too big, but the investigation of this phenomenon is important in scope of atmosphere-ionosphere connections and mechanisms of particles transport in magnetosphere. In according to double charge-exchange model the proton flux in near-equatorial region does not depend on geomagnetic local time (MLT) and longitude. However the Azur satellite data and Kosmos-484, MIR station and Active satellite data revealed the proton flux dependence on longitude. The other feature of near-equatorial proton flux is the dependence on geomagnetic local time revealed in the Sampex satellite experiment and other experiments listed above. In this work the dependences on MLT and longitude are investigated using the Active satellite (30-500 keV) and Sampex satellite (>800 keV). This data confirms that main sources of near-equatorial protons are radiation belts and ring current. The other result is that near-equatorial protons are quasi-trapped. The empirical proton flux dependences on L, B at near-equatorial longitudes are presented. (author)

  11. Pacific Equatorial Transect

    OpenAIRE

    Pälike, Heiko; Nishi, Hiroshi; Lyle, Mitch; Raffi, Isabella; Klaus, Adam; Gamage, Kusali

    2009-01-01

    Integrated Ocean Drilling Program Expedition 320/321, "Pacific Equatorial Age Transect" (Sites U1331–U1338), was designed to recover a continuous Cenozoic record of the paleoequatorial Pacific by coring above the paleoposition of the Equator at successive crustal ages on the Pacific plate. These sediments record the evolution of the paleoequatorial climate system throughout the Cenozoic. As we gained more information about the past movement of plates and when in Earth's history "critical" cli...

  12. Fish community composition, seasonality and abundance in Fortaleza Lagoon, cidreira

    Directory of Open Access Journals (Sweden)

    Lúcia Cabral Schifino

    2004-09-01

    Full Text Available The Fortaleza Lagoon belongs to the Southern Tramandaí subsystem, formed by lagoons disposed linearly on the north-south direction (30º 08’S, 50º 13’W. The objective of this study was to describe some aspects related to the composition of the fish community of Fortaleza Lagoon. Samples were collected monthly from November 1998 to October 1999. The specimens were captured at four previously determined points in the lagoon, and classified in five orders, 12 families and 22 species. Cyphocharax voga, Hyphessobrycon luetkenii, Oligosarcus jenynsii, Oligosarcus robustus and Loricariichthys anus were more abundant species. Amongst the sampled species only two could not be characterised as freshwater species: Centropomus sp (marine and Lycengraulius grossidens (estuarine. The ichthyofauna of the lagoon was predominantly composed by constant species.A Planície Costeira do Rio Grande do Sul é formada por uma série de corpos d’água, dispostos em seqüência ao longo da costa. A lagoa da Fortaleza pertence ao subsistema lagunar Tramandaí-Sul que é composto por lagoas, dispostas linearmente no sentido norte-sul. O do presente estudo teve como objetivo descrever alguns aspectos relacionados à composição da comunidade de peixes da Lagoa da Fortaleza. As amostragens foram realizadas, mensalmente, no período de novembro de 1998 a outubro de 1999. Os exemplares foram capturados em 4 pontos da lagoa previamente determinados e classificados em 5 ordens, 11 famílias e 22 espécies. As espécies Cyphocharax voga, Hyphessobrycon luetkenii, Oligosarcus jenynsii, Oligosarcus robustus e Loricariichthys anus mostraram-se as mais abundantes. Entre as espécies coletadas apenas duas não caracterizam espécies de água doce: Centropomus sp (marinha and Lycengraulius grossidens (estuarina. A ictiofauna da lagoa caracterizou-se por uma predominância de espécies constantes.

  13. Eje Cafetero: fortaleza minero-industrial y posibilidades agropecuarias

    OpenAIRE

    Duque Escobar, Gonzalo

    2012-01-01

    Fortalezas del Eje Cafetero relacionadas con sus potencialidades agropecuario y valioso inventario minero, que le dan soporte a los elementos fundamenbtales del Plan Industrial Minero y a nuevas opciones de clústeres regionales agropecuarios, en momentos en los que se perfila un crecimiento de la oferta energética local en el oriente caldense y la implementación de modos de transporte más eficientes como la navegación por el río Magdalena.

  14. Physical activity practice by adolescents from Fortaleza, CE, Brazil

    OpenAIRE

    Freitas, Roberto Wagner Júnior Freire de; Silva, Ana Roberta Vilarouca da; Araújo, Márcio Flávio Moura de; Marinho, Niciane Bandeira Pessoa; Damasceno, Marta Maria Coelho; Oliveira, Marcos Renato de

    2010-01-01

    O objetivo da pesquisa foi conhecer os hábitos cotidianos, relacionados à prática de atividade física, em 307 estudantes entre 12 e 17 anos, de seis escolas privadas, de Fortaleza - Brasil, entre os meses de março e junho de 2007. Foi aplicado um formulário para registrar sedentarismo, IMC, pressão arterial e glicemia. Para análise das proporções foi utilizado o teste do Qui-quadrado. Cerca de 68% dos jovens eram inativos. O sedentarismo foi maior nos pesquisados do sexo feminino (p=0, 000) e...

  15. Features of 3–7-day planetary-wave-type oscillations in F-layer vertical drift and equatorial spread F observed over two low-latitude stations in China

    Directory of Open Access Journals (Sweden)

    Z. Zhu

    2017-06-01

    Full Text Available Recent studies on the equatorial atmosphere–ionosphere coupling system have shown that planetary-wave-type oscillations, as an important seeding mechanism for equatorial spread F (ESF, play an important role in ESF irregularity development and its day-to-day variability in the equatorial latitudes. In this study, ionosonde virtual height and ESF measurements over Sanya (18.4° N, 109.6° E; 12.8° N dip latitude and meteor radar neutral-wind measurements over Fuke (19.5° N, 109.1° E; 14° N dip latitude during 2013 are used to investigate the features of planetary-wave-type oscillations in both the lower atmosphere and the ionosphere and their possible influences on ESF occurrence under the weak solar maximum year. The ∼ 3-day and ∼ 7-day planetary-wave-type oscillations have been observed in the neutral zonal winds and the time rate of change in F-layer virtual heights. According to the propagation characteristics, the 3-day and 7-day planetary-wave-type oscillations are basically recognized as ultrafast and fast Kelvin waves, respectively. With increasing heights, the 3-day wave oscillations are gradually amplified, while the 7-day wave oscillations are generally constant. By performing a cross-wavelet transform on the onsets of ESF and the vertical drifts of the F layer, we found that there are simultaneously occurring 7-day and 3-day common wave oscillations between them. The 7-day waves are mainly in the inversion phase, while the 3-day waves are mostly in an in-phase state, indicating that the 7-day waves may play a main role in ESF initiation. Approximate delays of 6 days for the 7-day waves and 5 days for the 3-day waves in their propagation upward from the lower atmosphere to the ionosphere are evaluated with wavelet power spectrum analysis. The estimated upward velocities from these time delays provide consistent evidence that the 7-day and 3-day waves propagate vertically upward with typical Kelvin wave

  16. Midday reversal of equatorial ionospheric electric field

    Directory of Open Access Journals (Sweden)

    R. G. Rastogi

    1997-10-01

    Full Text Available A comparative study of the geomagnetic and ionospheric data at equatorial and low-latitude stations in India over the 20 year period 1956–1975 is described. The reversal of the electric field in the ionosphere over the magnetic equator during the midday hours indicated by the disappearance of the equatorial sporadic E region echoes on the ionograms is a rare phenomenon occurring on about 1% of time. Most of these events are associated with geomagnetically active periods. By comparing the simultaneous geomagnetic H field at Kodaikanal and at Alibag during the geomagnetic storms it is shown that ring current decreases are observed at both stations. However, an additional westward electric field is superimposed in the ionosphere during the main phase of the storm which can be strong enough to temporarily reverse the normally eastward electric field in the dayside ionosphere. It is suggested that these electric fields associated with the V×Bz electric fields originate at the magnetopause due to the interaction of the solar wind and the interplanetary magnetic field.

  17. Midday reversal of equatorial ionospheric electric field

    Directory of Open Access Journals (Sweden)

    R. G. Rastogi

    Full Text Available A comparative study of the geomagnetic and ionospheric data at equatorial and low-latitude stations in India over the 20 year period 1956–1975 is described. The reversal of the electric field in the ionosphere over the magnetic equator during the midday hours indicated by the disappearance of the equatorial sporadic E region echoes on the ionograms is a rare phenomenon occurring on about 1% of time. Most of these events are associated with geomagnetically active periods. By comparing the simultaneous geomagnetic H field at Kodaikanal and at Alibag during the geomagnetic storms it is shown that ring current decreases are observed at both stations. However, an additional westward electric field is superimposed in the ionosphere during the main phase of the storm which can be strong enough to temporarily reverse the normally eastward electric field in the dayside ionosphere. It is suggested that these electric fields associated with the V×Bz electric fields originate at the magnetopause due to the interaction of the solar wind and the interplanetary magnetic field.

  18. [Medical theories and urban management: Fortaleza's 1877-79 drought].

    Science.gov (United States)

    Costa, Maria Clélia Lustosa

    2004-01-01

    Down through the nineteenth century, new medical theories on the origin of disease influenced the norms and regulations that controlled the population's behavior and the urban space. The present study discusses the ideas, medical practices , and administrative initiatives adopted during the 1877-79 drought in Fortaleza, capital of Ceará province. The drought was accompanied by a smallpox epidemic, along with the increased migration of sertão dwellers to the capitol. The city lacked a public service network capable of meeting the needs of this new population, which took up lodgings on the city and periphery. The municipal administration endeavored to implement the recommendations of physicians based on modern principles of hygienization. Through an analysis of reports by the provincial presidents and by public health inspectors, the study intends to show how these medical theories influenced the practices of urban reorganization at a moment of public emergency.

  19. The Informal Working in Fortaleza City: Between Urban Sanitation, Public Policy and Philosophy (1880-1910

    Directory of Open Access Journals (Sweden)

    Daniel Camurça Correia

    2016-06-01

    Full Text Available With this papper we aim to analyze the ways in which some people as self-employed, workers of the streets, such as porters, sellers and beggars, articulated his days in the city of Fortaleza, in the end of nineteenth century, between the political and regulatory joints of Ceará province. Despite of several attempts by the political, medical and establish intellectual high society discourses and practices against the massive presence of this kind of sel-employed, the disjointed work and the sick body of the popular, these, increasingly, were present through the work carried out, whether in times of drought, is the period of the belle époque of Fortaleza. Through the analysis of the sources, discusses to typify poor and informal workers, at the time when the economic elite of Fortaleza wanted to establish commercial modernity in this city. For the development of this article, we used literature and bibliographical research. Was performed in addition to the survey data of the time as another primary sources (Acting Secretary of the Business of Interior of Ceará Province Report, Match Proceedings of the Municipal Stewardship of Fortaleza, Corres- pondence Minutes of city Hall of Fortaleza; and secondary sources (Postures Code of the City of Fortaleza; and chronic books and besides memories of the city of Fortaleza.

  20. Equatorial electrojet in east Brazil longitudes

    Indian Academy of Sciences (India)

    dip latitude as the electrons/ions can move vertically along the inclined magnetic field lines. Equatorial electrojet has been extensively studied from ground, rocket ... Keywords. Equatorial electrojet; Brazilian anomaly in equatorial electrojet; asymmetries in equatorial electrojet. J. Earth Syst. Sci. 119, No. 4, August 2010, pp.

  1. Suggestions to leak prevention in Fortaleza's natural gas piping system; Sugestoes para a prevencao de vazamentos de gas natural canalizado na regiao metropolitana de Fortaleza

    Energy Technology Data Exchange (ETDEWEB)

    Teles, Marcus de Barros [Agencia Reguladora de Servicos Publicos Delegados do Estado do Ceara (ARCE), Fortaleza, CE (Brazil)

    2004-07-01

    Leaks are the bigger problem in health, safety and environmental when the subject is gas distribution piping systems. Specially in high density human regions, like in the majority districts of Fortaleza, safety have to be the higher priority to the gas company responsible for the gas distribution piping systems. Leaks are able to cause accidents or incidents, depending on the circumstances which they happen. In order to be control the situation and overcome the luck factor, leaks must be previously avoided by the application of some security requirements. This paper present some suggestions to natural gas leak prevention in the Fortaleza's metropolitan region pipeline systems. First, the piping systems are analysed, observing the risk regions. Then, safety actions and basic requirements to avoid pipe corrosion are presented in order to improve safety in the gas distribution piping systems of Fortaleza's metropolitan region. (author)

  2. MACSAT - A Near Equatorial Earth Observation Mission

    Science.gov (United States)

    Kim, B. J.; Park, S.; Kim, E.-E.; Park, W.; Chang, H.; Seon, J.

    MACSAT mission was initiated by Malaysia to launch a high-resolution remote sensing satellite into Near Equatorial Orbit (NEO). Due to its geographical location, Malaysia can have large benefits from NEO satellite operation. From the baseline circular orbit of 685 km altitude with 7 degrees of inclination, the neighboring regions around Malaysian territory can be frequently monitored. The equatorial environment around the globe can also be regularly observed with unique revisit characteristics. The primary mission objective of MACSAT program is to develop and validate technologies for a near equatorial orbit remote sensing satellite system. MACSAT is optimally designed to accommodate an electro-optic Earth observation payload, Medium-sized Aperture Camera (MAC). Malaysian and Korean joint engineering teams are formed for the effective implementation of the satellite system. An integrated team approach is adopted for the joint development for MACSAT. MAC is a pushbroom type camera with 2.5 m of Ground Sampling Distance (GSD) in panchromatic band and 5 m of GSD in four multi-spectral bands. The satellite platform is a mini-class satellite. Including MAC payload, the satellite weighs under 200 kg. Spacecraft bus is designed optimally to support payload operations during 3 years of mission life. The payload has 20 km of swath width with +/- 30 o of tilting capability. 32 Gbits of solid state recorder is implemented as the mass image storage. The ground element is an integrated ground station for mission control and payload operation. It is equipped with S- band up/down link for commanding and telemetry reception as well as 30 Mbps class X-band down link for image reception and processing. The MACSAT system is capable of generating 1:25,000-scale image maps. It is also anticipated to have capability for cross-track stereo imaging for Digital elevation Model (DEM) generation.

  3. Fortalezas Personales y Hábitos de Salud en Estudiantes Universitarios de Ciencias del Movimiento Humano

    Directory of Open Access Journals (Sweden)

    Kristy Barrantes-Brais

    2015-01-01

    Full Text Available El propósito de este estudio fue caracterizar y relacionar las fortalezas personales y los hábitos de salud en estudiantes universitarios de carreras de Ciencias del Movimiento Humano. Un total de 234 estudiantes (137 hombres y 97 mujeres brindaron información sobre fortalezas personales, hábitos de sueño y consumo de sustancias. Se analizaron diferencias entre grupos y correlaciones entre variables. Los resultados sugieren que las fortalezas predominantes son gratitud, curiosidad, integridad, bondad y liderazgo; se encuentran diferencias según género y carrera. Predominan los hábitos saludables, los cuales se asocian con algunas fortalezas. Los estudiantes presentan fortalezas que denotan preocupación por los demás y posibilidades de expresar y ser sensibles a las emociones. Los hábitos saludables y su relación con algunas fortalezas parecen evidenciar coherencia con las características de la unidad académica a la que pertenecen.

  4. Seroprevalence of toxoplasmosis in Fortaleza, Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    REY Luís C.

    1999-01-01

    Full Text Available A serological survey of Toxoplasma gondii infection in population groups in Fortaleza, Brazil, was conducted, in order to identify seroprevalence rates according to age and risk factors associated with acquired infection. A Toxoplasma IgG-antibody enzyme immunoassay (Sanofi Pasteur Diagnostics, Marnes la Coquette, France was employed to assess the immunity. Public day-care centers and schools were randomly selected, while three large antenatal clinics and maternity units were choosen by its importance. Population groups and results of 997 blood tests were: 227 children (mean age 3.8 years, 22.8% seropositives; 584 students (mean 11.4 years, 58.4%, and pregnant and postpartum women (mean 24 years, 71.5% seropositives (p < 0.001. Of 256 participants reporting close contact with cats, 59.8% were seropositive, in contrast with 51% seropositives without contact (relative risk 1.17; 95% confidence interval 1.04-1.33; p = 0.01. Having three or more siblings at home was related to higher seroprevalence in children and students (relative risk 1.39; 95% confidence interval 1.21-1.60; p < 0.01. In conclusion, toxoplasmosis seroprevalence showed a rapid increase during the first ten years of life, in association with close contact with cats and larger households, probably related to inappropriate hygiene and child-care practices.

  5. REQUALIFICAÇÃO URBANA NO CENTRO DE FORTALEZA (CE

    Directory of Open Access Journals (Sweden)

    Francisco Clébio Rodrigues Lopes

    2015-08-01

    Full Text Available A descentralização em Fortaleza gerou perda de população residente,desinvestimentos e expansão do comércio ambulante na Área Central nas últimastrês décadas. Face à problemática, um grupo formado por governo, empresários esociedade civil tem se reunido desde o início da década de 1990 para proporpolíticas de recuperação do Centro e, dessa forma, atrair investidores. Os projetosse interessam pela melhoria do espaço público e refletem tendências globais, porisso se baseiam numa aproximação entre o setor público e o privado mediante oestabelecimento de parcerias, asseguradas por mecanismos jurídicos. O objetivodeste artigo é analisar propostas de requalificação do bairro central. Assim,investigações em jornais, revisão bibliográfica e análise dos discursos proferidosno Fórum Viva Centro foram utilizados como instrumentos de pesquisa. Aconclusão foi que os planos de renovação combinam estratégias imobiliárias comcircuitos de valorização nas suas novas frentes de expansão.

  6. THE ALIEN STREET TREES OF FORTALEZA (NE BRAZIL: QUALITATIVE OBSERVATIONS AND THE INVENTORY OF TWO DISTRICTS

    Directory of Open Access Journals (Sweden)

    Marcelo Freire Moro

    2011-01-01

    Full Text Available Public tree planting is important for cities. It produces shadow, brings well-being for humans, and supports the urban fauna. But the cultivation of exotic plants can also be responsible for dissemination of invasive species. This paper aims to evaluate public tree planting in Fortaleza, Ceará state, in northeastern Brazil. From 2005 to 2009, qualitative observations on tree composition in the city were made. In 2006, a detailed inventory of all public trees was carried out in two districts of Fortaleza. Jointly, 2075 individuals grew here. Most of the tree species planted in Fortaleza are aliens, some are even invasive. The massive use of exotic plants in Fortaleza has negative consequences for the environmental education. People do not know the regional native trees, and thus are not concerned about the local biodiversity conservation. In spite of the huge amounts of native species available for ornamental purposes in the Brazilian flora, the street trees of Fortaleza are overwhelmingly aliens.

  7. Multistation digisonde observations of equatorial spread F in South America

    Directory of Open Access Journals (Sweden)

    B. W. Reinisch

    2004-09-01

    Full Text Available Directional ionogram and F-region drift observations were conducted at seven digisonde stations in South America during the COPEX campaign from October to December 2002. Five stations in Brazil, one in Argentina, and one in Peru, monitored the ionosphere across the continent to study the onset and development of F-region density depletions that cause equatorial spread F (ESF. New ionosonde techniques quantitatively describe the prereversal uplifting of the F layer at the magnetic equator and the eastward motion of the depletions over the stations. Three of the Brazilian stations were located along a field line with a 350-km apex over the equator to investigate the relation of the occurrence of ESF and the presence of sporadic E-layers at the two E-region intersections of the field line. No simple correlation was found.

  8. Niveles de bienestar espiritual y de fortaleza relacionados con la salud en adultos mayores

    OpenAIRE

    Martha V. Whetsell; Keville Frederickson; Paulina Aguilera; Juan Luis Maya

    2005-01-01

    Este estudio investigó la relación entre niveles de bienestar espiritual y fortaleza relacionada con la salud en una población mexicana de adultos mayores de 65 años. El proyecto se basó en el Modelo de Adaptación de Roy, el Modelo de Pollock (fortaleza relacionada con la salud) y el de Reed (bienestar espiritual). El diseño fue descriptivo correlacional, la muestra fue probabilística y se hizo al azar. La muestra (n=160) tuvo un nivel de significancia de 0,05 para una di...

  9. FATORES DE RETENÃÃO E DESLIGAMENTO DE PESSOAS NUMA EMPRESA DE SUPERMERCADOS EM FORTALEZA.

    OpenAIRE

    GalbÃria MourÃo Machado

    2005-01-01

    Essa dissertaÃÃo tem como objetivo a anÃlise dos fatores de retenÃÃo e desligamento de pessoas numa empresa de supermercados em Fortaleza, a partir do conhecimento das causas dos desligamentos de pessoas na empresa, bem como da investigaÃÃo dos fatores de influÃncia na decisÃo das pessoas de permanecerem na empresa. A relevÃncia do estudo deve-se ao aumento da competitividade no setor de supermercados em Fortaleza e pelas novas necessidades exigidas em suas estratÃgias admin...

  10. Niveles de bienestar espiritual y de fortaleza relacionados con la salud en adultos mayores

    Directory of Open Access Journals (Sweden)

    Martha V. Whetsell

    2005-01-01

    Full Text Available Este estudio investigó la relación entre niveles de bienestar espiritual y fortaleza relacionada con la salud en una población mexicana de adultos mayores de 65 años. El proyecto se basó en el Modelo de Adaptación de Roy, el Modelo de Pollock (fortaleza relacionada con la salud y el de Reed (bienestar espiritual. El diseño fue descriptivo correlacional, la muestra fue probabilística y se hizo al azar. La muestra (n=160 tuvo un nivel de significancia de 0,05 para una diferencia media de 1,6, un efecto de tamaño y potencia de 80. Los instrumentos fueron la Escala de Fortaleza Relacionada con la Salud, y la de Bienestar Espiritual, y presentaron un Alfa de 0,801 y 0,973 respectivamente. Se utilizó la Regresi ón Lineal Múltiple para investigar el efecto de las variables demográficas sobre el bienestar espiritual. La edad media de los sujetos fue de 73,9 (DE=4,3, el 62,5% fueron mujeres. El coeficiente de correlación entre el bienestar espiritual y la fortaleza relacionada con la salud fue significativo, los niveles más altos de bienestar espiritual tienen niveles igualmente elevados de fortaleza relacionada con la salud. El sexo, la edad, la educación y el estado civil mostraron una relación positiva con los niveles de bienestar espiritual (p<,005. Las mujeres mostraron un nivel mayor de bienestar espiritual que los hombres.

  11. Aerosol Transport Over Equatorial Africa

    Science.gov (United States)

    Gatebe, C. K.; Tyson, P. D.; Annegarn, H. J.; Kinyua, A. M.; Piketh, S.; King, M.; Helas, G.

    1999-01-01

    Long-range and inter-hemispheric transport of atmospheric aerosols over equatorial Africa has received little attention so far. Most aerosol studies in the region have focussed on emissions from rain forest and savanna (both natural and biomass burning) and were carried out in the framework of programs such as DECAFE (Dynamique et Chimie Atmospherique en Foret Equatoriale) and FOS (Fires of Savanna). Considering the importance of this topic, aerosols samples were measured in different seasons at 4420 meters on Mt Kenya and on the equator. The study is based on continuous aerosol sampling on a two stage (fine and coarse) streaker sampler and elemental analysis by Particle Induced X-ray Emission. Continuous samples were collected for two seasons coinciding with late austral winter and early austral spring of 1997 and austral summer of 1998. Source area identification is by trajectory analysis and sources types by statistical techniques. Major meridional transports of material are observed with fine-fraction silicon (31 to 68 %) in aeolian dust and anthropogenic sulfur (9 to 18 %) being the major constituents of the total aerosol loading for the two seasons. Marine aerosol chlorine (4 to 6 %), potassium (3 to 5 %) and iron (1 to 2 %) make up the important components of the total material transport over Kenya. Minimum sulfur fluxes are associated with recirculation of sulfur-free air over equatorial Africa, while maximum sulfur concentrations are observed following passage over the industrial heartland of South Africa or transport over the Zambian/Congo Copperbelt. Chlorine is advected from the ocean and is accompanied by aeolian dust recirculating back to land from mid-oceanic regions. Biomass burning products are transported from the horn of Africa. Mineral dust from the Sahara is transported towards the Far East and then transported back within equatorial easterlies to Mt Kenya. This was observed during austral summer and coincided with the dying phase of 1997/98 El

  12. Variability in equatorial B0 and B1

    International Nuclear Information System (INIS)

    Adeniyi, J.O.; Radicella, S.M.

    2002-01-01

    Variability of ionospheric profile parameters B0 and B1, below the F2 peak is investigated for an equatorial station at two levels of solar activities. The whole 24 hours of the day and the four seasons of the year are covered. Absolute and relative variability indices were utilized in the study. Some evidences of correlations of variability index and profiles parameters were observed. Daytime values of relative variability in B1 at solar minimum were found to be greater than those of solar maximum. (author)

  13. Central Equatorial Pacific Experiment (CEPEX)

    Energy Technology Data Exchange (ETDEWEB)

    1993-01-01

    The Earth's climate has varied significantly in the past, yet climate records reveal that in the tropics, sea surface temperatures seem to have been remarkably stable, varying by less than a few degrees Celsius over geologic time. Today, the large warm pool of the western Pacific shows similar characteristics. Its surface temperature always exceeds 27[degree]C, but never 31[degree]C. Heightened interest in this observation has been stimulated by questions of global climate change and the exploration of stabilizing climate feedback processes. Efforts to understand the observed weak sensitivity of tropical sea surface temperatures to climate forcing has led to a number of competing ideas about the nature of this apparent thermostat. Although there remains disagreement on the processes that regulate tropical sea surface temperature, most agree that further progress in resolving these differences requires comprehensive field observations of three-dimensional water vapor concentrations, solar and infrared radiative fluxes, surface fluxes of heat and water vapor, and cloud microphysical properties. This document describes the Central Equatorial Pacific Experiment (CEPEX) plan to collect such observations over the central equatorial Pacific Ocean during March of 1993.

  14. Quantum cloning machines for equatorial qubits

    International Nuclear Information System (INIS)

    Fan Heng; Matsumoto, Keiji; Wang Xiangbin; Wadati, Miki

    2002-01-01

    Quantum cloning machines for equatorial qubits are studied. For the case of a one to two phase-covariant quantum cloning machine, we present the networks consisting of quantum gates to realize the quantum cloning transformations. The copied equatorial qubits are shown to be separable by using Peres-Horodecki criterion. The optimal one to M phase-covariant quantum cloning transformations are given

  15. Understanding the Longitudinal Variability of Equatorial Electrodynamics using integrated Ground- and Space-based Observations

    Science.gov (United States)

    Yizengaw, E.; Moldwin, M.; Zesta, E.

    2015-12-01

    The currently funded African Meridian B-Field Education and Research (AMBER) magnetometer array comprises more than thirteen magnetometers stationed globally in the vicinity of geomagnetic equator. One of the main objectives of AMBER network is to understand the longitudinal variability of equatorial electrodynamics as function of local time, magnetic activity, and season. While providing complete meridian observation in the region and filling the largest land-based gap in global magnetometer coverage, the AMBER array addresses two fundamental areas of space physics: first, the processes governing electrodynamics of the equatorial ionosphere as a function of latitude (or L-shell), local time, longitude, magnetic activity, and season, and second, ULF pulsation strength at low/mid-latitude regions and its connection with equatorial electrojet and density fluctuation. The global AMBER network can also be used to augment observations from space-based instruments, such us the triplet SWARM mission and the upcoming ICON missions. Thus, in coordination with space-based and other ground-based observations, the AMBER magnetometer network provides a great opportunity to understand the electrodynamics that governs equatorial ionosphere motions. In this paper we present the longitudinal variability of the equatorial electrodynamics using the combination of instruments onboard SWARM and C/NOFS satellites and ground-based AMBER network. Both ground- and pace-based observations show stronger dayside and evening sector equatorial electrodynamics in the American and Asian sectors compared to the African sector. On the other hand, the African sector is home to stronger and year-round ionospheric bubbles/irregularities compared to the American and Asian sectors. This raises the question if the evening sector equatorial electrodynamics (vertical drift), which is believed to be the main cause for the enhancement of Rayleigh-Taylor (RT) instability growth rate, is stronger in the

  16. Sobrepeso entre adolescentes de escolas particulares de Fortaleza, CE, Brasil Sobrepeso entre adolescentes de escuelas privadas de Fortaleza, CE, Brasil Overweight among adolescents from private schools in Fortaleza, CE, Brazil

    Directory of Open Access Journals (Sweden)

    Márcio Flávio Moura Araújo

    2010-08-01

    Full Text Available O objetivo da pesquisa foi identificar casos de excesso de peso em adolescentes de escolas particulares de Fortaleza - Brasil. Foram investigados 794 estudantes entre 12 e 17 anos de idade, de 12 escolas privadas, nos meses de março-junho e agosto-setembro de 2007. A prevalência de sobrepeso e obesidade foi, respectivamente, de 20% e 4%. O sobrepeso foi maior, e duplicado os casos de obesidade, naqueles que mantinham o hábito de assistir tevê durante as refeições (p= 0, 000. Cerca de 28% dos jovens ativos apresentavam excesso de peso (p El objetivo de la investigación fue identificar los casos de sobrepeso en adolescentes de escuelas privadas de Fortaleza-Brasil. Fueron investigados 794 estudiantes entre 12 y 17 años, de 12 escuelas privadas, en los meses de marzo-junio y agosto-septiembre de 2007. La prevalencia de sobrepeso y obsedidad fue de 20% y 4%, respectivamente. La acumulación de peso fue mayor y los casos de obesidad fue dos veces más, en los que tenían la costumbre de asistir a la tele al alimentarse (p= 0, 000. Sobre 28% de los jóvenes que practicaban actividad física regularmente presentaban sobrepeso (p The purpose of the study was to identify cases of overweight among adolescents in private schools in Fortaleza, Brazil. We investigated 794 students between 12 and 17 years old from 12 private schools, in the months March to June and August-September 2007. The prevalence of overweight and obesity was 20% and 4%, respectively. Among the young people who watch TV while eat, the weight accumulated was higher and the cases of obesity was the double (p = 0, 000. About 28% of people who practiced regular physical activity were overweight (p <0, 001. In the fight against adolescent adiposity, to the nursing is primarily the preventive actions, because attenuate various pathological effects related to the accumulation of body weight.

  17. De olho nos muros: itinerÃrio do graffiti em Fortaleza

    OpenAIRE

    Lara Denise Oliveira Silva

    2014-01-01

    This paper has been themed graffiti in the city of Fortaleza and the ramifications of this practice between places, "inside" and "outside" of the landscape scenes that bring those experiences. It is possible define graffiti like figurative images, drawings, letters and names made with spray paint of various colors on walls, bridges, telephone boxes, among other bases, that make up the landscape of large and medium cities, here and abroad. Seen as a marginal activity in the recent past in Braz...

  18. Youth and citizenship: usage of digital media at the NGO Aldeia, in Fortaleza

    Directory of Open Access Journals (Sweden)

    Denise Cogo

    2013-06-01

    Full Text Available The article examines the citizen communication processestissues by young working in association Aldeia, in Fortaleza, Ceará. Theresearch is theoretical studies of social movements, digital media and citizencommunication. Selected as a result of the research, three aspects of the uses oftechnology by Aldeia young participants: 1 the absence of greater criticality inreading the media; 2 the complementarity between analog and digital media;and 3 the demand for professionalism

  19. CIDADE E QUESTÃO SOCIAL NO CAPITALISMO: em cena, Fortaleza, a Miami do nordeste

    Directory of Open Access Journals (Sweden)

    Aurineida Maria Cunha

    2008-01-01

    Full Text Available This article analyzes the genesis of the mercantile process in the cities, approaching the main urban transformations and their social subjects emphasizing the Brazilian urbanization aspects, specifically in the city of Fortaleza. Fortaleza was chosen as the researched city due to its ́ contradictions and transformations in the last two decades. The capital of the Ceará state has gone through different urban interventions, which contributed to alter its ́ historical image of being a poor, underdeveloped metropolis, to being perceived as a modern, structured city with leisure, culture and natural beauties, susceptible to be sold through local, national and international city marketing. Considering the official political speech modernizing the city would make it possible to decrease poverty; however, the Brazilian city of Fortaleza continues to present critical social indexes. This article also considers the historical construction of their citizen ́s city rights, analyzing the denial of their right to the city, showing that in the Brazilian society the citizens’ juridical equality is only theoretical because contradictorily, social inequality continues to be perceived. This article ends with a discussion over the (im possibility of equality concretization in capitalism due to its ́ logic being the whole population equality denial.

  20. Las fortalezas en personas mayores como factor que aumenta el bienestar

    Directory of Open Access Journals (Sweden)

    Encarnación Ramírez-Fernández

    2015-08-01

    Full Text Available En las últimas décadas se ha incrementado el estudio de las fortalezas psicológicas como factor que afecta al bienestar. Éstas pueden ser consideradas como un subconjunto de rasgos de personalidad a los que se otorga un valor moral, definiéndose como cualidades naturales que las personas están intrínsecamente motivada a utilizar porque aumentan la calidad de vida. Las investigaciones demuestran que actúan como factores de protección y prevención de la psicopatología y de los problemas de conducta en las diferentes etapas evolutivas. Hay fortalezas que son más relevantes en personas mayores y su entrenamiento estaría dirigido a influir sobre el comportamiento y el funcionamiento emocional con el objetivo de aumentar la satisfacción con la vida. En el presente trabajo se analizan las fortalezas que predominan en adultos mayores y se propone un programa de intervención para potenciarlas con la finalidad de mejorar su salud y calidad de vida. Se trata de una propuesta novedosa ya que, hasta el momento, las intervenciones en este ámbito han ido encaminadas a paliar diferentes problemas tanto de manera aislada como complemento de terapias de tipo más tradicional pero no como prevención de la aparición de trastornos habituales en edades avanzadas.

  1. EQUATORIAL SUPERROTATION ON TIDALLY LOCKED EXOPLANETS

    International Nuclear Information System (INIS)

    Showman, Adam P.; Polvani, Lorenzo M.

    2011-01-01

    The increasing richness of exoplanet observations has motivated a variety of three-dimensional (3D) atmospheric circulation models of these planets. Under strongly irradiated conditions, models of tidally locked, short-period planets (both hot Jupiters and terrestrial planets) tend to exhibit a circulation dominated by a fast eastward, or 'superrotating', jet stream at the equator. When the radiative and advection timescales are comparable, this phenomenon can cause the hottest regions to be displaced eastward from the substellar point by tens of degrees longitude. Such an offset has been subsequently observed on HD 189733b, supporting the possibility of equatorial jets on short-period exoplanets. Despite its relevance, however, the dynamical mechanisms responsible for generating the equatorial superrotation in such models have not been identified. Here, we show that the equatorial jet results from the interaction of the mean flow with standing Rossby waves induced by the day-night thermal forcing. The strong longitudinal variations in radiative heating-namely intense dayside heating and nightside cooling-trigger the formation of standing, planetary-scale equatorial Rossby and Kelvin waves. The Rossby waves develop phase tilts that pump eastward momentum from high latitudes to the equator, thereby inducing equatorial superrotation. We present an analytic theory demonstrating this mechanism and explore its properties in a hierarchy of one-layer (shallow-water) calculations and fully 3D models. The wave-mean-flow interaction produces an equatorial jet whose latitudinal width is comparable to that of the Rossby waves, namely the equatorial Rossby deformation radius modified by radiative and frictional effects. For conditions typical of synchronously rotating hot Jupiters, this length is comparable to a planetary radius, explaining the broad scale of the equatorial jet obtained in most hot-Jupiter models. Our theory illuminates the dependence of the equatorial jet

  2. Prevalência de asma em adolescentes na cidade de Fortaleza, CE Prevalence of asthma among adolescents in the city of Fortaleza, Brazil

    Directory of Open Access Journals (Sweden)

    Maria de Fátima Gomes de Luna

    2009-11-01

    Full Text Available OBJETIVO: Avaliar a prevalência de asma em adolescentes (13-14 anos na cidade de Fortaleza, CE. MÉTODOS: Estudo transversal utilizando o questionário do International Study of Asthma and Allergies in Childhood e envolvendo 3.015 adolescentes de escolas públicas e privadas entre 2006 e 2007. RESULTADOS: As prevalências de "sibilos alguma vez na vida", "sibilos nos últimos doze meses" (asma ativa e "asma alguma vez na vida" (asma diagnosticada foram, respectivamente, 44,1%, 22,6% e 11,6%. As prevalências de "sibilos alguma vez na vida" (p = 0,001, "1-3 crises de sibilos nos últimos 12 meses" (p = 0,001; asma ativa (p = 0,002; "sono interrompido por sibilos menos que uma vez por semana" (p OBJECTIVE: To determine the prevalence of asthma among adolescents (13-14 years of age in the city of Fortaleza, Brazil. METHODS: This was a cross-sectional study involving 3,015 adolescents at public and private schools between 2006 and 2007. The participants completed the International Study of Asthma and Allergies in Childhood questionnaire. RESULTS: The prevalences of "wheezing ever", "wheezing within the last 12 months" (active asthma and "asthma ever" (physician-diagnosed asthma were 44.1%, 22.6% and 11.6%, respectively. The prevalences of "wheezing ever" (p = 0.001, "1-3 wheezing attacks within the last 12 months" (p = 0.001, active asthma (p = 0.002, "sleep disturbed due to wheezing less than one night per week" (p < 0.001 and "dry cough at night" (p < 0.001 were higher among girls. Private school students presented higher prevalences of "wheezing ever", active asthma, "1-3 wheezing attacks within the last 12 months", "4-12 wheezing attacks within the last 12 months" and physician-diagnosed asthma (p < 0.001 for all, as well as of "exercise-induced wheezing" (p = 0.032. CONCLUSIONS: The prevalence of asthma and asthma-related symptoms in students aged 13-14 years in the city of Fortaleza, Brazil, was high, predominantly among girls and private

  3. Photoelectric panel with equatorial mounting of drive

    Science.gov (United States)

    Kukhta, M. S.; Krauinsh, P. Y.; Krauinsh, D. P.; Sokolov, A. P.; Mainy, S. B.

    2018-03-01

    The relevance of the work is determined by the need to create effective models for sunny energy. The article considers a photoelectric panel equipped with a system for tracking the sun. Efficiency of the system is provided by equatorial mounting, which compensates for the rotation of the Earth by rotating the sunny panel in the plane of the celestial equator. The specificity of climatic and geographical conditions of Tomsk is estimated. The dynamics of power variations of photoelectric panels with equatorial mounting during seasonal fluctuations in Tomsk is calculated. A mobile photovoltaic panel with equatorial mounting of the drive has been developed. The methods of design strategy for placing photovoltaic panels in the architectural environment of the city are presented. Key words: sunny energy, photovoltaics, equatorial mounting, mechatronic model, wave reducer, electric drive.

  4. El castillo de Portilla (Zambrana, Álava: Origen y significado de una fortaleza plenomedieval en territorio alavés (siglos XI-XII

    Directory of Open Access Journals (Sweden)

    Jose Luis Solaun Bustinza, Agustín Azkarate Garai-Olaun

    2016-01-01

    Las recientes investigaciones arqueológicas efectuadas en esta fortaleza han permitido conocer mejor su origen y significado. Las evidencias apuntan a que la actual fortaleza, construida entre principios del siglo XI y mediados del siglo XII, estuvo bajo titularidad real, aunque fue gestionada por importantes aristocracias locales y regionales, siendo testigo de las complejas relaciones entre el poder público y privado y, obviamente, de la multiplicidad de funciones que esta fortaleza pudo desempeñar.

  5. Analysis of the natural gas market in Fortaleza metropolitan region (Brazil); Analise do mercado de gas natural na regiao metropolitana de Fortaleza

    Energy Technology Data Exchange (ETDEWEB)

    Barroso, Carlos Andre M.; Rabelo, Clarice A.C.; Santana, Lana L.P.; Sucupira, Marcos L.L. [Universidade Federal do Ceara (UFC), Fortaleza, CE (Brazil)

    2004-07-01

    Natural gas has become one of the most important energy sources, as we can observe in most countries' energy sector, where its presence is very significant. In Brazil, natural gas corresponds to 7,5% of all energy Also available, and the government has plans to increase this number to 12% until 2010. However, in order to reach this goal, it is important to understand how market works, evaluating all the aspects that have some influence on it. This paper goal is to analyze the natural gas market in Fortaleza metropolitan region, emphasizing the industrial sector, the biggest consumer in Ceara State. The main aspects are characterized here, like professionals qualification in the area, service quality, from equipment and maintenance suppliers until gas distributors, legal aspects, and other factors that are also relevant to a possible future expansion of different natural gas market segments (industry, residence, commerce and transport). (author)

  6. Hanseníase: subnotificação de casos em Fortaleza - Ceará, Brasil Leprosy: underreported cases in Fortaleza - Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Mônica Cardoso Façanha

    2006-08-01

    Full Text Available FUNDAMENTO: Visando à eliminação da hanseníase como problema de saúde pública no Brasil, o Ministério da Saúde tem como meta alcançar taxa de prevalência de menos de 1 caso/10.000 habitantes, estimulando o diagnóstico e tratamento dos casos e reduzindo a disseminação da doença. O Sistema de Informação de Agravos de Notificação (SINAN foi designado para acompanhar o cumprimento dessa meta. OBJETIVO: Verificar a proporção dos casos de hanseníase diagnosticados nas unidades de saúde do município de Fortaleza que foi notificada ao SINAN. MÉTODOS: Foi feita a identificação dos casos diagnosticados e registrados nas unidades de saúde e notificados à Secretaria Municipal de Saúde de Fortaleza (SMSF entre 2002 e 2004 por meio da comparação nominal entre os registros locais e os registros do SINAN. RESULTADOS: Foram identificados e resgatados para o SINAN 411 casos que haviam sido diagnosticados e não notificados (17,5% do total informado de 15 (64% das unidades que informaram pelo menos um caso no período. Cerca 342 casos constavam nos livros e estavam notificados no banco de dados do SINAN das unidades de atendimento, mas não compunham o banco de dados do SINAN da SMSF. CONCLUSÕES: Constatou-se subnotificação de 14,9% dos casos detectados, fato que precisa ser prevenido para que os indicadores reflitam a real freqüência dos casos no município.BACKGROUND: To eliminate leprosy as a public health problem in Brazil, the Ministry of Health aims to achieve a prevalence rate of less than 1.0 case/10,000 inhabitants, encouraging diagnosis and treatment of patients and reducing dissemination of the disease. The National Disease Notification System (SINAN is in charge of verify the elimination plan results. OBJECTIVE: To verify the proportion of leprosy cases diagnosed and reported to SINAN by health centers of the city of Fortaleza, in Ceará, Northeastern region of Brazil. METHODS: Comparison between cases registered in

  7. Numerical modeling of the equatorial ionization anomaly (EIA), equatorial temperature and wind anomaly (ETWA) and equatorial electron temperature anomaly (EETA) on the basis of the GSM TIP

    Science.gov (United States)

    Klimenko, M. V.; Klimenko, V. V.; Bryukhanov, V. V.

    On the basis of Global Self-consistent Model of Thermosphere Ionosphere and Protonosphere GSM TIP developed in WD IZMIRAN the calculations of the behavior of thermosphere F-region and upper ionosphere parameters at middle and low geomagnetic latitudes are carried out The calculations were carried out with use the new block of the calculation of electric fields in the ionosphere in which the decision of the three-dimensional equation describing the law of the conservation of the full current density in the ionosphere of the Earth is realized by adduction it to the two-dimensional by integration on the thickness of the current conductive layer of the ionosphere along equipotential geomagnetic field lines The calculations of the neutral atmosphere composition and temperature were executed with use of the MSIS model The quite geomagnetic conditions of the equinox were considered in the minimum of the solar activity There are presented the calculated global distributions of the critical frequency of the F2-layer of ionosphere for the different moments UT the latitudinal course of the N e and T e in the F-region and upper ionosphere in the vicinity of geomagnetic equator and unrolling on UT of the calculated velocities of zonal component of the thermospheric wind and ion temperature in the F-region of ionosphere as well as critical frequency and height of the F2-layer maximum of the ionosphere at three longitude chains of the stations Brazilian -- Fortaleza 4 0 r S 38 0 r W Jicamarca 11 9 r S 76 0 r W Cachoeira

  8. Regulation of primary productivity rate in the equatorial Pacific

    International Nuclear Information System (INIS)

    Barber, R.T.; Chavez, F.P.

    1991-01-01

    Analysis of the Chl-specific rate of primary productivity (P B ) as a function of subsurface nutrient concentration at >300 equatorial stations provides an answer to the question: What processes regulate primary productivity rate in the high-nutrient, low-chlorophyll waters of the equatorial Pacific? In the western Pacific where there is a gradient in 60-m [NO 3 ] from 0 to ∼12 μM, the productivity rate is a linear function of nutrient concentration; in the eastern Pacific where the gradient is from 12 to 28 μM, the productivity rate is independent of nutrient concentration and limited to ∼36 mg C(mg Chl) -1 d -1 , or a mean euphotic zone C-specific growth rate (μ) of 0.47 d -1 . However, rates downstream of the Galapagos Islands are not limited; they are 46.4 mg C(mg Chl) -1 d -1 and μ = 0.57 d -1 , very close to the predicted nutrient-regulated rates in the absence of other limitation. This pattern of rate regulation can be accounted for by a combination of eolian Fe, subsurface nutrients, and sedimentary Fe derived from the Galapagos platform. In the low-nutrient western Pacific the eolian supply of Fe is adequate to allow productivity rate to be set by subsurface nutrient concentration. In the nutrient-rich easter equatorial region eolian Fe is inadequate to support productivity rates proportional to the higher nutrient concentrations, so in this region eolian Fe is rate limiting. Around the Galapagos Islands productivity rates reach levels consistent with nutrient concentrations; sedimentary Fe from the Galapagos platform seems adequate to support increased nutrient-regulated productivity rates in this region

  9. Equatorial storm sudden commencements and interplanetary magnetic field

    International Nuclear Information System (INIS)

    Rastogi, R.G.

    1980-01-01

    A comparison is made of the signatures of interplanetary (IP) shocks in the B and theta plots of interplanetary magnetic field (IMF) data of satellites Explorer 33, 34 and 35 and in the H magnetograms at ground observatories within the equatorial electrojet belt, Huancayo, Addis Ababa and Trivandrum associated with major storm sudden commencements during 1967-70. The IP shocks showing sudden increase of the scalar value of IMF, i.e. B without any change of the latitude theta or with the southward turning of theta, were followed by a purely positive sudden increase of H, at any of the magnetic observatories, either on the dayside or the nightside of the earth. The IP shocks identified by a sudden increase of B and with the northward turning of the latitude theta (positive ΔBsub(z)) were associated with purely positive sudden commencement (SC) at the observatories in the nightside, but at the equatorial observatories in the dayside of the earth the signature of the shock was a SC in H with a preliminary negative impulse followed by the main positive excursion (SC-+). It is suggested that the SCs in H at low latitudes are composed of two effects, viz. (i) one due to hydromagnetic pressure on the magnetosphere by the solar plasma and (ii) the other due to the induced electric field associated with the solar wind velocity, V and the Z-component of the IP magnetic field (E = - V x Bsub(z)). The effect of magnetosphere electric field is faster than the effect due to the compression of the magnetosphere by the impinging solar plasma. The negative impulse of SC-+ at low latitude is seen at stations close to the dip equator and only during daytime due to the existence of high ionospheric conductivities in the equatorial electrojet region. (author)

  10. Westward equatorial electrojet during daytime hours. [relation to geomagnetic horizontal field depression

    Science.gov (United States)

    Rastogi, R. G.

    1974-01-01

    The phenomenon of the depression of the geomagnetic horizontal field during the daytime hours of magnetically quiet days at equatorial stations is described. These events are generally seen around 0700 and 1600 LT, being more frequent during the evening than the morning hours. The evening events are more frequent during periods of low solar activity and in the longitude region of weak equatorial electrojet currents. The latitudinal extent of the phenomenon is limited to the normal equatorial electrojet region, and on some occasions the phenomenon is not seen at both stations, separated by only a few hours in longitude. During such an event, the latitudinal profile of the geomagnetic vertical field across the equator is reversed, the ionospheric drift near the equator is reversed toward the east, the q type of sporadic E layer is completely absent, and the height of the peak ionization in the F2 region is decreased. It is suggested that these effects are caused by a narrow band of current flowing westward in the E region of the ionosphere and within the latitude region of the normal equatorial electrojet, due to the reversal of the east-west electrostatic field at low latitudes.

  11. Enfrentamento da AIDS entre mulheres infectadas em Fortaleza - CE Enfrentamento del SIDA entre mujeres infectadas en Fortaleza-CE How infected women in Fortaleza-CE cope with AIDS

    Directory of Open Access Journals (Sweden)

    Carolina Maria de Lima Carvalho

    2008-03-01

    Full Text Available Este estudo objetivou apreender como as mulheres com aids enfrentam o cotidiano após o conhecimento do seu diagnóstico. Trata-se de estudo exploratório, descritivo, com abordagem qualitativa, utilizando a História Oral Temática para coleta e análise de dados. Foram entrevistadas dez mulheres com aids em um Hospital de referência em Fortaleza-CE, de dezembro de 2004 a março de 2005. Para coleta de dados utilizou-se roteiro semi-estruturado, cujos dados foram categorizados. Os resultados revelam diferentes formas de enfrentamentos relacionados à fragilidade da descoberta do diagnóstico, à necessidade de ocultar a infecção decorrente da discriminação e preconceito que vivenciam, e à constante percepção da morte; além de emitirem sentimentos, como vergonha, preocupação com a família, abandono, solidão, tristeza, medo da morte, ansiedade. Concluiu-se que, apesar de mais de duas décadas de epidemia, fica evidente as dificuldades enfrentadas pelas mulheres ao vivenciarem sua infecção.Este estudio tuvo como objetivo aprender cómo las mujeres con sida enfrentan el cotidiano después de conocer su diagnóstico. Se trata de un estudio exploratorio, descriptivo, con abordaje cualitativo, utilizando la Historia Oral Temática para la recolección y el análisis de los datos. Fueron entrevistadas diez mujeres con sida en un Hospital de referencia en Fortaleza-CE, de diciembre del 2004 a marzo del 2005. Para la recolección de los datos se utilizó una guía semi-estructurada, cuyos datos fueron categorizados. Los resultados revelan diferentes formas de enfrentamiento relacionados a la fragilidad del descubrimiento del diagnóstico, a la necesidad de ocultar la infección consecuente de la discriminación y prejuicios que vivencian, y a la constante percepción de la muerte; además de reflejar sentimientos, como vergüenza, preocupación con la familia, abandono, soledad, tristeza, miedo a la muerte, ansiedad. Se concluyó que, pese

  12. FORTALEZA NA COPA DO MUNDO: a visão dos turistas estrangeiros sobre a cidade no jornalismo local

    Directory of Open Access Journals (Sweden)

    Silvia Helena Belmino

    2016-08-01

    Full Text Available O artigo tem por objetivo investigar como o jornalismo local apresenta a visão dos turistas estrangeiros sobre Fortaleza durante a Copa do Mundo de 2014. Partindo dos referenciais sobre imagem, discute-se a construção da imagem do Brasil e, mais especificamente, do Ceará. A análise crítica do discurso (ACD, com base nas proposições de Norman Fairclough (2005, é o caminho escolhido para analisar duas notícias publicadas em junho de 2014, nos dois principais jornais da cidade, O Povo e Diário do Nordeste. O foco em qualidades de Fortaleza ajuda a construir uma imagem positiva da cidade para o cidadão local.    PALAVRAS-CHAVE: Imagem; turismo; Fortaleza; jornalismo, consumo.     ABSTRACT This article aims to investigate how local journalism presents the view of foreign tourists about the city of Fortaleza during 2014 World Cup. The theoretical framework is based on discussions about the formation of Brazil’s and Ceará’s images. Critical discourse analysis, as suggested by Norman Fairclough (2005, is the chosen methodology to analyze two news articles published in June 2014, in the two main newspapers of Fortaleza, O Povo and Diário do Nordeste. The focus in the positive attributes helps to build a positive image of the city for its citizen.   KEYWORDS: Image; tourism; Fortaleza; journalism; consumption     RESUMEN El artículo tiene como objetivo investigar cómo el periodismo local, presenta la visión de los turistas extranjeros sobre Fortaleza durante la Copa Mundial de 2014. Sobre la base de la imagen de referencia, se analiza la construcción de la imagen de Brasil y, más específicamente, de Ceará. El Análisis Crítico del Discurso (ACD, sobre la base de las propuestas de Norman Fairclough (2005, es el camino elegido para analizar dos informes publicados en junio de 2014, los dos principales periódicos de la ciudad, diario El Pueblo y el Diario del Noreste . El foco en las cualidades de Fortaleza ayuda a construir

  13. Fatores influenciadores do processo de compra das consumidoras de moda íntima de Fortaleza

    OpenAIRE

    Façanha, Karine Forte

    2016-01-01

    A compreensão dos fatores influenciadores do comportamento de compra do consumidor é muito importante para o sucesso das empresas, elevando a competência delas para lidar com a intensa concorrência a que estão submetidas. Nesse sentido, este estudo tem por objetivo analisar os fatores que influenciam o comportamento de compra das consumidoras varejistas de lingerie na cidade de Fortaleza e avaliar agrupamentos dessas consumidoras de acordo com as características demográficas. Os influenciador...

  14. La comunicación ante la convergencia digital: algunas fortalezas y debilidades

    OpenAIRE

    José Alberto García Avilés

    2009-01-01

    La convergencia de medios es un proceso facilitado por la implantación generalizada de las tecnologías digitales de la telecomunicación, que afecta aspectos muy diversos y propicia una integración de herramientas, espacios, métodos de trabajo y lenguajes anteriormente disgregados. La convergencia se desarrolla, al menos, en cinco ámbitos: tecnológico, empresarial, de los contenidos, de los usuarios y de los profesionales de los medios. El artículo analiza distintas fortalezas y debilidades qu...

  15. O uso do clítico na fala culta de Fortaleza

    Directory of Open Access Journals (Sweden)

    Emanuela Monteiro GONDIM

    2012-05-01

    Full Text Available

    Este trabalho visa verificar a ocorrência ou o apagamento do clítico nos verbos pronominais na fala de informantes cultos de Fortaleza, em diferentes contextos. Contrariando o que a Gramática Tradicional (GT afirma a respeito dos verbos pronominais, a queda do clítico já vem sendo comprovada em algumas regiões brasileiras. Sendo assim, é importante verificarmos o uso desses pronomes por falantes de Fortaleza. Para tanto, basear-nos-emos na teoria variacionista, para analisarmos ocorrências retiradas do corpus PORCUFORT. Os resultados apontam para uma tendência ao desuso desses pronomes, inclusive, com alguns verbos considerados pronominais pela GT. Tais resultados mostram a validade de uma pesquisa que analise um corpus mais atual, já que os dados do PORCUFORT foram coletados na década de 80, para que possa ser verificado se atualmente o clítico tem sido mais frequentemente apagado ou utilizado.

  16. Retrospective Study on Dengue in Fortaleza, State of Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Cunha RV da

    1998-01-01

    Full Text Available A retrospective serologic study was carried out in Fortaleza, State of Ceará, Brazil, in order to detect the dengue virus activity before recognizing the epidemic of 1994. Mac-Elisa was performed by using a mixture of specific DEN-1 and DEN-2 antigens on serum samples from the Emilio Ribas Laboratory collection. Samples were obtained from 1,224 patients with exanthematic febrile disease and negative serological results for rubella. All specimens were taken during November 1993 to May 1994. The results confirmed dengue infections in Fortaleza by November 1993, approximately six months before the beginning of the epidemic, proving how misleading diagnosis of dengue infection are still troublesome, in spite of the strong dengue activity in Ceará. The authors stress the urgent necessity to implement the active surveillance system in order to prevent another extensive dengue fever epidemics in the state. Epidemiological background of the dengue activity in the State of Ceará is also described.

  17. Amyotrophic lateral sclerosis: clinical analysis of 78 cases from Fortaleza (Northeastern Brazil

    Directory of Open Access Journals (Sweden)

    CASTRO-COSTA CARLOS M. DE

    1999-01-01

    Full Text Available We report on the clinical characteristics of amyotrophic lateral sclerosis (ALS in Fortaleza (Northeastern Brazil. For this, we analyzed retrospectively (from 1980 to 1999 78 cases of ALS from the Service of Neurology of the University Hospital of Fortaleza diagnosed clinically and laboratorially (EMG, muscle biopsy, myelography, blood biochemistry, muscle enzymes and cranio-cervical X-ray. The results showed that they were mostly sporadic ALS (76/78, and they were divided into definite (n= 36, probable (n= 20, possible (n= 15 and suspected (n= 7, according to the level of diagnostic certainty. They were also subdivided into juvenile (n= 17, early-onset adult (n= 18, age-specific (n= 39 and late-onset (n= 4 groups. Clinically, they presented as initials symptoms, principally, asymmetrical (30/78 and symmetrical (24/78 weakness of extremities, besides bulbar signs, fasciculations, and atrophy. Curiously, pain as first symptom occurred in an expressive fashion (17/78. The predominant initial anatomic site, in this series, was the spinal cord, and mainly affecting the arms. As to the symptom accrual from region to region, this occurs more quickly in contiguous areas, and fasciculations are predominant when bulbar region was associated.

  18. The oil boom in Equatorial Guinea

    International Nuclear Information System (INIS)

    Frynas, J.G.

    2004-01-01

    In less than a decade, Equatorial Guinea has transformed itself from an African backwater into one of the world's fastest growing economies and a sought-after political partner in the Gulf of Guinea. The sole reason for this transformation has been the discovery of oil and gas. This article outlines the rise of Equatorial Guinea as one of Africa's leading oil-producing countries and investigates the political, economic and social effects of becoming a petro-state. The article is based on the author's field research in Equatorial Guinea in the autumn of 2003 and interviews with senior oil company staff, government officials and staff of international organizations as well as secondary sources. This research demonstrates how reliance on oil and gas exports can lead to profound changes in a country's political economy. (author)

  19. Equatorial Scintillation Study at Ilorin and Nsukka, Nigeria during Year 2011-2012

    Science.gov (United States)

    Akala, A.

    2017-12-01

    This study presents GNSS scintillations over Ilorin (8.48 oN, 4.54 oE, and mag lat: 1.83oS) and Nsukka (6.84 oN, 7.37 oE, and mag lat: 2.94oS), Nigeria during year 2011-2012. The two stations are located within the inner flank of the equatorial ionization anomaly. Firstly, we investigated the climatology of equatorial scintillations at the two stations. We suppressed multipath effects on the data by imposing a 300 elevation masking on the data. In addition, we investigated scintillation occurrences at the two locations on a satellite-by-satellite basis at varying elevation angles. The source of scintillation records at low-elevation angle is attributed to multipath, while that at high-elevation angle is attributed to ionospheric irregularities. Seasonally, scintillations recorded highest occurrences during March equinox, and the least during June solstice. The trend of scintillations, at both low- and high-elevation angles at the two stations were almost the same. EGNOS satellites signals scintillated at the two locations during the time intervals when GPS satellites signals experienced scintillations. These results could support the development of scintillation models for equatorial Africa, and could also be of benefit to GPS and EGNOS service providers and designers, with a view to providing robust services for GNSS user community in Africa.

  20. Equatorial waves in the stratosphere of Uranus

    Science.gov (United States)

    Hinson, David P.; Magalhaes, Julio A.

    1991-01-01

    Analyses of radio occultation data from Voyager 2 have led to the discovery and characterization of an equatorial wave in the Uranus stratosphere. The observed quasi-periodic vertical atmospheric density variations are in close agreement with theoretical predictions for a wave that propagates vertically through the observed background structure of the stratosphere. Quantitative comparisons between measurements obtained at immersion and at emersion yielded constraints on the meridional and zonal structure of the wave; the fact that the two sets of measurements are correlated suggests a wave of planetary scale. Two equatorial wave models are proposed for the wave.

  1. Coccolithophores in the equatorial Atlantic Ocean

    DEFF Research Database (Denmark)

    Kinkel, Hanno; Baumann, K.-H.; Cepek, M.

    2000-01-01

    with each other. In general, the living coccolithophores in the surface and subsurface waters show considerable variation in cell numbers and distribution patterns. Cell densities reached a maximum of up to 300 x 10 coccospheres/l in the upwelling area of the equatorial Atlantic. Here, Emiliania huxleyi...

  2. Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field

    Science.gov (United States)

    Rastogi, R. G.; Chandra, H.; Janardhan, P.; Reinisch, B. W.; Bisoi, Susanta Kumar

    2017-10-01

    We connect the time sequence of changes in the IMF-Bz to the development of spread-F at an equatorial station Kwajalein on three different nights in November 2004, one during a geomagnetic quiet period and other two during geomagnetic disturbed periods. The chosen days show clear and smooth variations of IMF-Bz without any large fluctuations thereby enabling one to correlate changes in equatorial spread-F with corresponding changes in IMF-Bz. It is shown that a slow and continuous increase in the IMF-Bz over a duration of few hours has a similar effect on the equatorial ionosphere as of a sudden northward turning of the IMF-Bz in causing an electric field through the polar region and then to the equator. We conclude that the Spread-F at equatorial and low latitudes are due to echoes from ionization irregularities that arise due to the plasma instabilities generated by an eastward electric field on the large plasma density gradient in or below the base of the F-layer during any period of the night time along with the gravity driven Rayleigh-Taylor instability.

  3. Evaluación de las Virtudes y Fortalezas Humanas en Población de Habla Hispana

    Directory of Open Access Journals (Sweden)

    Alejandro C. Cosentino

    2015-09-01

    Full Text Available La Psicología Positiva es el estudio científico de las experiencias subjetivas positivas, los rasgos individuales positivos y las instituciones positivas. La comprensión de los rasgos individuales positivos consiste en el estudio de las virtudes y fortalezas del carácter. Luego de un prolongado hiato, nuevamente ha comenzado el estudio del carácter moral en la psicología científica. Se presenta el desarrollo de un instrumento para la evaluación de las virtudes y fortalezas humanas según la clasificación del carácter de 6 virtudes y 24 fortalezas de Peterson y Seligman [Peterson, C. & Seligman, M.E.P. (2004. Character strengths and virtues: A handbook and classification. Washington, DC, EE.UU. American Psychological Association; Oxford University Press]. Análisis psicométricos preliminares del Inventario de Virtudes y Fortalezas (IVyF sugieren que este inventario muestra una razonable confiabilidad y estructura factorial. 

  4. Radiometric survey in the sites of Regional office in Fortaleza, research gallery and camp in Itataia, CE (Brazil)

    International Nuclear Information System (INIS)

    1982-02-01

    The radiometric survey in Regional officer sites in Fortaleza, Brazil, research gallery and camp in Itataia is presented. The measurings to be done, the instrumentation used and results obtained are described as well as the conclusions and recommendations. (C.M.) [pt

  5. Juventude e cidadania: uso das mídias digitaus da ONG Aldeia, em Fortaleza

    Directory of Open Access Journals (Sweden)

    Denise Maria Cogo

    2013-03-01

    Full Text Available O artigo analisa os processos de comunicação cidadã tecidos porjovens que atuam na associação Aldeia, em Fortaleza, Ceará. O marco teórico da pesquisa abrange os estudos sobre movimentos sociais, mídias digitais e comunicação cidadã. Selecionamos, como resultado da pesquisa, três aspectos dos usos das tecnologias pelos jovens do Aldeia: 1 a ausência de uma maior criticidade na leitura dos meios ; 2 a complementaridade entre as mídias analógicas e as digitais; e 3 a demanda por profissionalização.

  6. Prevalences of asthma and rhinitis among adolescents in the city of Fortaleza, Brazil: temporal changes.

    Science.gov (United States)

    Luna, Maria de Fátima Gomes de; Fischer, Gilberto Bueno; Luna, João Rafael Gomes de; Silva, Marcelo Gurgel Carlos da; Almeida, Paulo César de; Chiesa, Daniela

    2013-01-01

    To describe the prevalences of asthma and rhinitis in adolescents (13-14 years of age) in the city of Fortaleza, Brazil, in 2010, comparing the results with those obtained in a prevalence survey conducted in 2006-2007. This was a cross-sectional study involving probabilistic samples of 3,015 and 3,020 adolescents in surveys conducted in 2006-2007 and 2010, respectively. The International Study of Asthma and Allergies in Childhood protocol was used on both occasions. Comparing the two periods, there were no significant differences regarding cumulative wheezing, active asthma, four or more wheezing attacks within the last year, sleep disturbed by wheezing more than one night per week, and speech-limiting wheezing. The prevalences of exercise-induced wheezing, dry cough at night, and physician-diagnosed asthma were significantly higher in 2010 than in the 2006-2007 period (p school students than in public school students (p school students.

  7. La comunicación ante la convergencia digital: algunas fortalezas y debilidades

    Directory of Open Access Journals (Sweden)

    José Alberto García Avilés

    2009-01-01

    Full Text Available La convergencia de medios es un proceso facilitado por la implantación generalizada de las tecnologías digitales de la telecomunicación, que afecta aspectos muy diversos y propicia una integración de herramientas, espacios, métodos de trabajo y lenguajes anteriormente disgregados. La convergencia se desarrolla, al menos, en cinco ámbitos: tecnológico, empresarial, de los contenidos, de los usuarios y de los profesionales de los medios. El artículo analiza distintas fortalezas y debilidades que afronta el sector de la comunicación ante el desarrollo de la convergencia digital en cada uno de estos cinco ámbitos. Finalmente, las recomendaciones apuestan por mantener y fortalecer los contenidos de servicio público, interés general y acceso universal en el escenario de convergencia.

  8. PREVALÊNCIA DE ENTEROPARASITAS NA REGIÃO METROPOLITANA DE FORTALEZA, CEARÁ

    Directory of Open Access Journals (Sweden)

    Marcos Adelino ALMEIDA FILHO

    2017-12-01

    Full Text Available As enteroparasitoses são problemas de saúde pública associadas às condições socioeconômicas, principalmente pela falta de conhecimento de bons hábitos sanitários da população. Nesse ínterim, o presente trabalho objetivou a analisar prevalência de enteroparasitas em amostras fecais provenientes de pacientes da rede pública e privada da Região Metropolitana de Fortaleza – CE. A pesquisa se caracteriza em um estudo transversal, conduzido no período de abril/2014 a novembro/2016, com indivíduos provenientes da área metropolitana de Fortaleza, de ambos os sexos e diferentes faixas etárias. Do total de 6.596 amostras fecais analisadas de pacientes, 840 (12,73% apresentaram-se positivas para diversas formas parasitárias, prevalecendo os protozoários, as espécies Endolimax nana (55,14%, Entamoeba coli (21,33% e Giardia lamblia (13,95% foram as mais frequentes. Seguido de nematelmintos como Ascaris lumbricoides (1,32%, Trichocephalus trichiurus (0,66%, Enterobius vermiculares (0,33% e os platelmintos foram Hymenolepis nana (0,66%, Fasciola hepatica (0,11% e Taenia sp. (0,11%. O número de casos positivos analisados nesta pesquisa, induz à necessidade da elaboração de políticas públicas, além de programas de educação e conscientização, principalmente para as populações carentes, com o intuito de amenizar a incidência e os impactos causados por enteroparasitoses. 

  9. Irregularities and Forecast Studies of Equatorial Spread

    Science.gov (United States)

    2016-07-13

    stations – one transmitting station at Ancon, two re- ceiving stations at Jicamarca, and one receiving station at Huancayo, Peru. The stations utilize two...ESF disrupts radio communication, navigation, and imaging systems including space- based synthetic aperture radars and over-the-horizon radars and...experimental capability. We designed, programmed, and deployed a network of HF beacons. The beacons employ software-defined transceivers and function as next

  10. Airborne fungi causing respiratory allergy in patients from Fortaleza, Ceará, Brazil Fungos anemófilos causando alergia respiratória em pacientes na cidade de Fortaleza, Ceará

    Directory of Open Access Journals (Sweden)

    Everardo Albuquerque Menezes

    2004-04-01

    Full Text Available The dispersal of airborne fungi is made through atmospherical air. Knowledge of anemophilous fungi in a given city is important for the ecological diagnosis and specific treatment of allergic manifestations induced by inhaled allergens. Their use in individuals' allergy is widespread, and probably will remain so in the years to come. The purpose of this research was to make a relationship between the airborne fungi and the patients' respiratory allergy (asthma and rhinitis from the city of Fortaleza, state of Ceará, Brazil. First a research was made in Fortaleza about the fungal allergens dispersed in atmospherical air. Fungal allergen extracts were made from the ten most predominant moulds in the air, using sodium bicarbonate. The prick tests were made in fifty patients with asthma and rhinitis and in ten healthy persons (with no respiratory allergy. The positive test was made using histamine and the negative test with sodium bicarbonate preparation. The predominant fungi in the air of Fortaleza were: Aspergillus, Penicillium, Curvularia, Cladosporium, Mycelia sterilia, Fusarium, Rhizopus, Drechslera, Absidia and Alternaria. As determined by the prick test: three fungal extracts (Aspergillus, Alternaria and Drechslera were positive in all patients; two (Penicillium and Curvularia were positive in thirty-five patients; two (Cladosporium and Mycelia sterilia were positive in thirty patients; and three (Rhizopus, Absidia and Fusarium were positive in nine patients. All the control tests were negative. All the ten most predominant anemophilous fungi isolated in the air could provoke skin test reactivity in individuals with respiratory allergy in Fortaleza.Os fungos anemófilos estão dispersos no ar atmosférico. O conhecimento dos fungos anemófilos em uma cidade é importante para o diagnóstico ecológico e o tratamento específico de manifestações alérgicas induzidas pela inalação de alérgenos. Os fungos alergênicos são usados para o

  11. Study of equatorial Kelvin waves using the MST radar and radiosonde observations

    Directory of Open Access Journals (Sweden)

    P. Kishore

    2005-06-01

    Full Text Available In this paper an attempt has been made to study equatorial Kelvin waves using a high power coherent VHF radar located at Gadanki (13.5° N, 79.2° E, a tropical station in the Indian sub-continent. Simultaneous radiosonde observations taken from a nearby meteorological station located in Chennai (13.04° N, 80.17° E were also used to see the coherence in the observed structures. These data sets were analyzed to study the mean winds and equatorial waves in the troposphere and lower stratosphere. Equatorial waves with different periodicities were identified. In the present study, particular attention has been given to the fast Kelvin wave (6.5-day and slow Kelvin wave (16-day. Mean zonal wind structures were similar at both locations. The fast Kelvin wave amplitudes were somewhat similar in both observations and the maximum amplitude is about 8m/s. The phase profiles indicated a slow downward progression. The slow Kelvin wave (16-day amplitudes shown by the radiosonde measurements are a little larger than the radar derived amplitudes. The phase profiles showed downward phase progression and it translates into a vertical wavelength of ~10-12km. The radar and radiosonde derived amplitudes of fast and slow Kelvin waves are larger at altitudes near the tropopause (15-17km, where the mean wind attains westward maximum.

  12. Long wavelength irregularities in the equatorial electrojet

    OpenAIRE

    Kudeki, E.; Farley, D. T.; Fejer, Bela G.

    1982-01-01

    We have used the radar interferometer technique at Jicamarca to study in detail irregularities with wavelengths of a few kilometers generated in the unstable equatorial electrojet plasma during strong type 1 conditions. In-situ rocket observations of the same instability process are discussed in a companion paper. These large scale primary waves travel essentially horizontally and have large amplitudes. The vertical electron drift velocities driven by the horizontal wave electric fields reach...

  13. Development of intermediate-scale structure at different altitudes within an equatorial plasma bubble: Implications for L-band scintillations

    Science.gov (United States)

    Bhattacharyya, A.; Kakad, B.; Gurram, P.; Sripathi, S.; Sunda, S.

    2017-01-01

    An important aspect of the development of intermediate-scale length (approximately hundred meters to few kilometers) irregularities in an equatorial plasma bubble (EPB) that has not been considered in the schemes to predict the occurrence pattern of L-band scintillations in low-latitude regions is how these structures develop at different heights within an EPB as it rises in the postsunset equatorial ionosphere due to the growth of the Rayleigh-Taylor instability. Irregularities at different heights over the dip equator map to different latitudes, and their spectrum as well as the background electron density determine the strength of L-band scintillations at different latitudes. In this paper, VHF and L-band scintillations recorded at different latitudes together with theoretical modeling of the scintillations are used to study the implications of this structuring of EPBs on the occurrence and strength of L-band scintillations at different latitudes. Theoretical modeling shows that while S4 index for scintillations on a VHF signal recorded at an equatorial station may be >1, S4 index for scintillations on a VHF signal recorded near the crest of the equatorial ionization anomaly (EIA) generally does not exceed the value of 1 because the intermediate-scale irregularity spectrum at F layer peak near the EIA crest is shallower than that found in the equatorial F layer peak. This also explains the latitudinal distribution of L-band scintillations. Thus, it is concluded that there is greater structuring of an EPB on the topside of the equatorial F region than near the equatorial F layer peak.

  14. High altitude flights in equatorial regions

    Science.gov (United States)

    Redkar, R. T.

    A thorough analysis of balloon flights made from Hyderabad, India (Latitude 17°28'N, Longitude 78°35'E), and other equatorial sites has been made. It has been shown that limited success is expected for flights made from equatorial latitudes with balloons made out of natural colour polyethylene film, since the best known balloon film in the world today viz. Winzen Stratofilm is tested for low temperature brittleness only at -80°C., whereas the tropopause temperatures over equatorial latitudes vary between -80°C and -90°C. The success becomes even more critical when flights are made with heavy payloads and larger balloons particularly at night when in the absence of solar radiation the balloon film becomes more susceptible to low temperature brittle failure. It is recommended that in case of capped balloons longer caps should be used to fully cover the inflated protion of the balloon at the higher level equatorial tropopause. It is also advised that the conditions such as wind shears in the tropopause should be critically studied before launching and a day with the tropopause temperature nearer to -80°C should be chosen. Special care also should be taken while handling the balloon on ground and during launching phase. Properties of Winzen Stratofilm have been critically studied and fresh mandates have been recommended on the basis of limiting values of film stresses which caused balloon failures in the equatorial tropopause. It is also emphasized that the data on such flights is still meagre especially for flights with heavy payloads and larger balloons. It has been also shown that it is safest to use balloons made out of grey coloured film which retains its flexibility with the absorption of solar radiation, the success obtained with such balloons so far being 100%. The drawback, however, is that these balloons cannot be used for night flights. Stratospheric wind regimes over Hyderabad are also discussed with a view to determine the period over which long

  15. A erosividade das chuvas em Fortaleza (CE: I - distribuição, probabilidade de ocorrência e período de retorno - 1ª aproximação Rainfall erosivity in Fortaleza, Ceará State, Brazil: I - distribution, probability of occurrence and return period - 1st approximation

    Directory of Open Access Journals (Sweden)

    A. S. Dias

    2003-04-01

    Loss Equation to predict erosion losses and for conservation planning requires an evaluation of index values of local rainfall erosivity. As a contribution to knowledge on these indexes in the coastal zone of Ceará State, the objectives of this study were: (a to determine the R factor and the annual EI30 index values, its monthly distribution, probability of occurrence and return periods in Fortaleza, Ceará State, Brazil for the period of 1962 to 1981, and (b to create a data bank that allows, by a subsequent analysis, the assessment of correlation between the EI30 index and monthly rainfall amounts in order to simplify the index calculation and to update its values for the years 1982 to 2000. Total rainfall kinetic energy, uniform intensities, maximum 30 minutes intensity and the EI30 index for individual rainstorms were determined on 7,300 daily rain gauge charts from 1962 to 1981, available at the Meteorological Station of the Federal University of Ceará, in Fortaleza. The distribution frequency for the maximum individual and annual EI30 values and their return periods were calculated and plotted on curves of occurrence probability of these values. Over the 20 years period, the R factor found in Fortaleza was 6,774 in a range from 2,237 to 12,881 MJ mm (ha h y-1 and this average annual value is expected to occur, or to be exceeded, at least once in 2.2 years with an occurrence probability of 46 %. Maximum individual EI30 values estimated for return periods of 2, 5, 20, 50 and 100 years were 1,363, 2,415, 3,783, 5,950 and 8,000 MJ mm (ha h-1, respectively. Distribution of the local erosivity showed that 97 % of the annual EI30 occurs in the first semester of the year. Highest soil and water losses are to be expected during the months of February to May, since 70 % of the annual erosivity index value occurs in this quarter of the year, when conventional tillage is used for seedbed preparation and the canopy is incipient.

  16. Genotyping of Mycobacterium leprae for better understanding of leprosy transmission in Fortaleza, Northeastern Brazil.

    Science.gov (United States)

    Fontes, Amanda N B; Lima, Luana N G C; Mota, Rosa M S; Almeida, Rosa L F; Pontes, Maria A; Gonçalves, Heitor de S; Frota, Cristiane C; Vissa, Varalakshmi D; Brennan, Patrick J; Guimaraes, Ricardo J P S; Kendall, Carl; Kerr, Ligia R F S; Suffys, Philip N

    2017-12-01

    Leprosy is endemic in large part of Brazil with 28,761 new patients in 2015, the second largest number worldwide and reaches 9/10.000 in highly endemic regions and 2.7/10.000 in the city of Fortaleza, Ceará, Northeast Brazil. For better understanding of risk factors for leprosy transmission, we conducted an epidemiologic study supplemented by 17 locus VNTR and SNP 1-4 typing of Mycobacterium leprae in skin biopsy samples from new multibacillary (MB) patients diagnosed at a reference center in 2009 and 2010. Among the 1,519 new patients detected during the study period, 998 (65.7%) were MB and we performed DNA extraction and genotyping on 160 skin biopsy samples, resulting in 159 (16%) good multilocus VNTR types. Thirty-eight of these patients also provided VNTR types from M. leprae in nasal swabs. The SNP-Type was obtained for 157 patients and 87% were of type 4. Upon consideration all VNTR markers, 156 different genotypes and three pairs with identical genotypes were observed; no epidemiologic relation could be observed between individuals in these pairs. Considerable variability in differentiating index (DI) was observed between the different markers and the four with highest DI [(AT)15, (TA)18, (AT)17 and (GAA)21] frequently demonstrated differences in copy number when comparing genotypes from both type of samples. Excluding these markers from analysis resulted in 83 genotypes, 20 of which included 96 of the patients (60.3%). These clusters were composed of two (n = 8), three (n = 6), four (n = 1), five (n = 2), six (n = 1), 19 (n = 1) and 23 (n = 23) individuals and suggests that recent transmission is contributing to the maintenance of leprosy in Fortaleza. When comparing epidemiological and clinical variables among patients within clustered or with unique M. leprae genotypes, a positive bacterial index in skin biopsies and knowledge of working with someone with the disease were significantly associated with clustering. A tendency to belong to a cluster was

  17. Effect of magnetic activity on plasma bubbles over equatorial and low-latitude regions in East Asia

    Directory of Open Access Journals (Sweden)

    G. Li

    2009-01-01

    Full Text Available The dependence of plasma bubble occurrence in the eveningside ionosphere, with magnetic activity during the period years 2001–2004, is studied here based on the TEC observations gathered by ground-based GPS receivers which are located in the equatorial and low-latitude regions in East Asia. The observed plasma bubbles consist of the plasma-bubble events in the equatorial (stations GUAM, PIMO and KAYT, and low-latitude regions (stations WUHN, DAEJ and SHAO. It is shown that most equatorial plasma-bubble events commence at 20:00 LT, and may last for >60 min. The magnetic activity appears to suppress the generation of equatorial plasma bubbles with a time delay of more than 3 h (4–9 h. While in the low-latitude regions, most plasma-bubble events commence at about 23:00 LT and last for <45 min. The best correlation between Kp and low-latitude plasma-bubble occurrence is found with an 8–9 h delay, a weak correlation exists for time delays of 6–7 h. This probably indicates that over 3 h delayed disturbance dynamo electric fields obviously inhibit the development of plasma bubbles in the pre-midnight sector.

  18. Equatorial westward electrojet impacting equatorial ionization anomaly development during the 6 April 2000 superstorm

    Science.gov (United States)

    Horvath, Ildiko; Lovell, Brian C.

    2013-11-01

    investigate the forward plasma fountain and the equatorial ionosphere in the topside region during the 6 April 2000 superstorm in the Australian sector at ~0900 LT. Space- and ground-based multi-instrument measurements, Coupled Thermosphere-Ionosphere-Plasmasphere Electrodynamics (CTIPe) simulations, and field-aligned observations comprise our results. These reveal an unusual storm development during which the eastward prompt penetration electric (E) field (PPEF) developed and operated under the continuous effects of the westward disturbance dynamo E-field (DDEF) while large-scale traveling ionospheric disturbances (TIDs) traveled equatorward and generated strong equatorward wind surges. We have identified the eastward PPEF by the superfountain effect causing the equatorial ionization anomaly (EIA)'s development with crests situated at ~±28°N (geomagnetic) in the topside ionosphere at ~840 km altitude. The westward DDEF's occurrence is confirmed by mapping the "anti-Sq" current system wherein the equatorial westward current created a weak long-lasting westward electrojet event. Line plots of vertical drift data tracked large-scale TIDs. Four scenarios, covering ~3.5 h in universal time, demonstrate that the westward DDEF became superimposed on the eastward PPEF. As these E-fields of different origins became mapped into the F region, they could interact. Consequently, the eastward PPEF-related equatorial upward E × B drift became locally reduced by up to 75 m/s near the dip equator by the westward DDEF-related equatorial downward E × B drift. Meanwhile, the EIA displayed a better development as equatorial wind surges, reproduced by CTIPe, increased from 501 to 629 m/s, demonstrating the crucial role of mechanical wind effects keeping plasma density high.

  19. El estudio científico de las fortalezas trascendentales desde la Psicología Positiva

    Directory of Open Access Journals (Sweden)

    María Luisa Martínez Martí

    2006-01-01

    Full Text Available Dentro del marco de la Psicología positiva existe una línea de investigación centrada en las virtudes y fortalezas del ser humano, entendidas como rasgos positivos de personalidad, que está elaborando una clasificación de ellas siguiendo un esquema similar al del Diagnostic and Statistical Manual of Mental Disorders (DSM. En este artículo se exponen algunos de los estudios que muestran los efectos beneficiosos de un grupo concreto de estas fortalezas, las trascendentales (espiritualidad, gratitud, esperanza, apreciación de la belleza y excelencia, humor, con la intención de promover su investigación.

  20. [Training health workers to deal with sexual abuse of children and adolescents in Fortaleza, Ceará State, Brazil].

    Science.gov (United States)

    Deslandes, Suely; Cavalcanti, Ludmila Fontenele; Vieira, Luiza Jane Eyre de Souza; Silva, Raimunda Magalhães da

    2015-02-01

    This study aimed to identify initiatives for training staff in the municipal healthcare system in Fortaleza, Ceará State, Brazil, to deal with cases of sexual abuse of children and adolescents. The reference for this exploratory study was the training program provided by the municipal government in 2010-2012 for administrators and health professionals in the public healthcare system in Fortaleza. At the time, the issue of sexual abuse was low in the system's training programs, despite recognition of its importance. Federal and State programs have provided input for such training programs in the various municipal health departments. The main strategy was to invest in training for health workers in primary care. Social workers were found to have insufficient training, aggravated by temporary work contracts and high staff turnover. The study suggests the need for training to deal with violence, particularly sexual abuse.

  1. Fire Stations

    Data.gov (United States)

    Department of Homeland Security — Fire Stations in the United States Any location where fire fighters are stationed or based out of, or where equipment that such personnel use in carrying out their...

  2. A ESPACIALIDADE DO VILEGISTURISTA MARÍTIMO EM FORTALEZA, CEARÁ: práticas e transformações recentes

    Directory of Open Access Journals (Sweden)

    Antônio Tadeu Pinto Soares Júnior

    2010-01-01

    Full Text Available The relationship of the society with the sea is redesigned by the metropolis with the consolidation of the modern maritime practices and the valorization of the land close to the sea (swimming, walks, "vilegiatura", habitation and coastal tourism as a place for entertainment and living, observed in the capitals of the northeast like Fortaleza. The practice of the "vilegiatura maritima" became present in the city in the decade of 1930 in the Iracema beach with the "vilegiaturistas" belonging to the upper class of Fortaleza and of all the Province of Ceará. Later, with the coastal urbanization in the decade of 1970, the phenomenon reaches also the municipalities members of the metropolitan region of the city such as Caucaia and Aquiraz. This work has as a general goal to analyse the phenomenon of the "vilegiatura marítima" that takes place on the cost of Fortaleza, evidenced by the acquisition of secondary residences in order to live close to the beach, even in a seasonal way, in the period from 1991 to 2000. In order to understand the unfolding of theses social processes in their urban tissue, Fortaleza and how its coastal space presents the practice of "vilegiatura maritima" were analyzed, by the diverse social agents, named the "vilegiaturistas" (domestic and foreign, the State, the real state sector and society, responsible for the transformations caused by the occupation, investment practices and use of the coastal zone, be for entertainment, be for secondary residences in condos. In this study are analysed the neighbourhoods of Iracema beach, Meireles, and Future beach I and it showed that the "vilegiaturistas marítimos" are concentrated on the Central and East part of the city, and simultaneously their "dilution" in the metropolis generating multicultural spots, opposite to the fi rst hypothesis of the "vilegiatura maritíma" as "the scape from the city", once this phenomenon became predominantly urban.

  3. REESTRUTURAÇÃO PRODUTIVA, TRABALHO E TRANSFORMAÇÕES NO ESPAÇO METROPOLITANO DE FORTALEZA

    Directory of Open Access Journals (Sweden)

    Alexsandra Maria Vieira Muniz

    2011-08-01

    Full Text Available In the face of the ongoing process of productive and spatial restructuring, the Metropolitan Region of Fortaleza(RMF experiments the substitution of forms and the diversification of its functions. The creation of industrialdistricts and large housing projects has led to a complex form of the urban structure in the metropolis,with changes in the socio-spatial organization. Different from an expected loss of functions, Fortaleza hasstrengthened its command capacities due to the new roles that the municipalities of the RMF play in the socialand technical division of labor. However, these municipalities have remained dependent on the supply of servicesfrom the capital that has specialized on the tertiary sector, increasing its polarizing power and area of influence.The policies for the incentive of tourism, real estate deals, agribusiness, and the growth and expansion of theindustry in Ceará have produced changes in the employment structure, on the labor market, and consequently inthe metropolis. This article analyzes the impacts of the processes of restructuring in the metropolitan space ofFortaleza and their implications for the labor force profile and the spatial mobility. It shows the impulse and therescaling of the industry in the RMF and the resulting expansion of its zone of influence to other states and thetransnational space, and these processes favor the emergence of new centralities.

  4. Prevalência e fatores determinantes do consumo de medicamentos no Município de Fortaleza, Ceará, Brasil Prevalence and determinants of medicines consumption in Fortaleza, Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Paulo Sérgio Dourado Arrais

    2005-12-01

    Full Text Available O presente trabalho tem por finalidade investigar a prevalência e os determinantes do consumo de medicamentos pela população de Fortaleza, Ceará, Brasil. Com base em um delineamento transversal de base populacional, estudou-se uma amostra representativa de 331 domicílios, onde foram entrevistadas 1.370 pessoas, no período de outubro/2002 a janeiro/2003. Foram consideradas consumidoras de medicamentos todas as pessoas que nos 15 dias anteriores à entrevista tenham consumido pelo menos um medicamento. Para análise estatística foram incluídas 1.366 pessoas. A prevalência do consumo de medicamentos foi de 49,7%. Os fatores preditores do consumo na análise multivariada, por regressão logística, foram: renda familiar mensal maior que três salários mínimos, idade igual ou maior que 50 anos, sexo feminino, três ou menos pessoas por domicílio, doente crônico, ter plano de saúde e ter se consultado uma ou mais vezes nos últimos três meses. A prevalência do consumo de medicamentos em Fortaleza é elevada, mas encontra-se dentro dos parâmetros encontrados no Brasil e no exterior. No entanto, sugere que existe uma iniqüidade no acesso aos medicamentos.The objective of this work was to investigate the prevalence and determinants of medicines consumption in Fortaleza, Ceará, Brazil. A population-based cross-sectional study was carried out in a representative sample of 331 households. A total of 1,370 persons living in Fortaleza were interviewed from October 2002 to January 2003, and 1,366 were selected for this study. Consumers were defined as all persons having used one or more drugs during the preceding 15 days. The prevalence of medicine consumption was 49.7%. The following were the predictive factors for medicines consumption according to the multivariate logistic regression analysis: family income > 3 minimum wages, older age ( > or = 50, female gender, > or = 3 persons living in household, chronic disease, having a health

  5. Urbanization of visceral leishmaniasis (kala-azar in Fortaleza, Ceará, Brazil Urbanización de la leishmaniasis visceral (kala-azar en Fortaleza, Ceará, Brasil

    Directory of Open Access Journals (Sweden)

    Polianna Lemos Moura Moreira Albuquerque

    2009-10-01

    Full Text Available OBJECTIVES: Visceral leishmaniasis (VL is endemic in Brazil and appears to occur in epidemic form in the state of Ceará. Few epidemiologic studies have been done on VL in this state. The aim of this study is to establish the epidemiologic pattern of VL in Fortaleza City and to show how urbanization has occurred in recent years. METHODS: Data were obtained from the State Health Department of Fortaleza, Ceará, and included all cases of VL registered in Fortaleza from January 2001 to December 2006. RESULTS: There were a marked increase and an elevated incidence of cases of VL in urban areas. Children and young people were the most affected group. CONCLUSION: The epidemic occurrence of VL in the region must convince authorities to adopt more adequate policies of disease control.OBJETIVOS: La leishmaniasis visceral (LV es endémica en Brasil y suele ocurrir en forma epidémica en el estado de Ceará. Se han realizado pocos estudios epidemiológicos sobre LV en ese estado. El objetivo de este estudio es establecer el patrón epidemiológico de LV en la ciudad de Fortaleza y mostrar cómo ha ocurrido la urbanización de esta enfermedad en los últimos años. MÉTODOS: Los datos se obtuvieron del Departamento Estatal de Salud de Fortaleza, Ceará, y abarcaron todos los casos de LV registrados en esa ciudad entre enero de 2001 y diciembre de 2006. RESULTADOS: Se observó un marcado incremento y una elevada incidencia de LV en las áreas urbanas. Los niños y jóvenes fueron los grupos más afectados. CONCLUSIÓN: La ocurrencia de epidemias de LV en la región debe convencer a las autoridades para que adopten políticas más apropiadas para el control de esta enfermedad.

  6. Identificação dos desafios do Arranjo Produtivo Local de Tecnologia da Informação de Fortaleza-CE [Identification of the Challenges to the Local Productive Arrangement of Information Technology in Fortaleza-CE

    Directory of Open Access Journals (Sweden)

    Elias Pereira Lopes Júnior

    2011-06-01

    Full Text Available A coordenação das atividades colaborativas, visando à obtenção e consolidação de vantagens competitivas sustentáveis, é considerada como característica básica de uma governança local indutora de desenvolvimento regional. Este trabalho tem o objetivo de identificar os desafios relacionados com o desenvolvimento do Arranjo Produtivo Local (APL de Tecnologia da Informação (TI de Fortaleza mediante a análise dos conteúdos dos discursos declarados pelas instituições representativas do setor. A pesquisa, realizada entre junho e outubro de 2007, é considerada de caráter exploratório, amparada em dados primários, através da análise de conteúdo como técnica de investigação, havendo a incorporação de elementos quantitativos e qualitativos no tratamento das informações como prevê Godoy (1995. Foram identificados trinta e cinco desafios relacionados com o desenvolvimento do APL de Fortaleza. Estes se agrupam em quatro fatores críticos que refletem as principais demandas, de acordo com as bases para o fortalecimento da infra-estrutura e das relações de mercado do aglomerado. --- Identification of the Challenges to the Local Productive Arrangement of Information Technology in Fortaleza-CE --- Abstract: --- The coordination of collaborative activities in order to collection and consolidation of sustainable competitive advantage is considered a basic feature of local governance induces regional development. This work aims to identify the challenges related to the development of the Local Productive Arrangement (APL of Information Technology (IT from Fortaleza by analysis of the content of the speeches reported by the representative of the sector. The research, conducted from June to October 2007, is considered exploratory in nature, supported by primary data through analysis of content and technical research with the incorporation of quantitative and qualitative elements in the treatment of information as provided Godoy (1995

  7. Geomagnetic storms and electric fields in the equatorial ionosphere

    International Nuclear Information System (INIS)

    Rastogi, R.G.

    1977-01-01

    Using direct measurements of equatorial electric field during a geomagnetic storm it is shown that the large decrease in the field observed near the dip equator is due to the reversal of the equatorial electrojet current. This is caused by the imposition of an additional westward electric field on the equatorial ionosphere which was originated by the interaction of solar wind with the interplanetary magnetic field. (author)

  8. [Impact of violence on the health of families at Fortaleza, Ceará State].

    Science.gov (United States)

    Vieira, Luiza Jane Eyre de Souza; Arcoverde, Márcia Liduína Vasconcelos; Araújo, Maria Alix Leite; Ferreira, Renata Carneiro; Fialho, Ana Virgínia de Melo; Pordeus, Augediva Maria Jucá

    2009-01-01

    The study describes the impact of the violence on the quality of life of the families, which were attended at the Relatives and Friends Violence Victims Association (ARFVV) in Fortaleza, Ceará State. The case study was accomplished among five mothers that were involved in a NGO on the battle against the violence. The semi-structured interview, the participation at the institution's meetings and the documental research were the data collecting techniques, being these last ones, submitted to the thematic analysis and discussed according to the literature and Letters of Health Promotion. The impacts caused by the violence comprise the physical, emotional and social family's health, cause changes on behavior between the members, and lead to the increasing of smoking, drinking, social isolation and exacerbate revolt feelings, vengeance and pessimism. The NGO's work has been important to support the families on the conflicts overcoming, health familiar restoration, redeeming the self-expectation, the hope on the justice and social mobility. The health of families' victims from violence is affected on the biological, emotional and social aspects, favoring the process of sickness. These have appealed to the support from NGOs to transform the 'victim condition' - violence hostage to the 'responsible citizenship' - guardians of peace on the battle against the urban violence.

  9. La formación actual del médico: fortalezas y debilidades

    Directory of Open Access Journals (Sweden)

    X. Clèries

    Full Text Available Las “Jornadas estatales de estudio y debate sobre el futuro de la formación integral del médico ¿bioingeniería o medicina?” que se realizaron en Barcelona el 8 y 9 de febrero de 2008 fueron el marco para que un grupo de trabajo abordara el tema de las fortalezas y debilidades de la formación actual del médico. Las principales aportaciones se estructuraron en los tres niveles educativos siguientes: pregrado, posgrado y formación continuada. Se destacó la necesidad de una formación integral y psicosocial en la enseñanza de pregrado, la conveniencia de una estructuración troncal de la formación de posgrado para conseguir una mayor transversalidad de la competencia del médico y la contextualización de la formación continuada en el desarrollo profesional de cada médico. El predominio de los conocimientos biomédicos y tecnológicos en la formación actual del médico contrastan con las demandas de carácter psicosocial de una gran parte de la población en el sistema sanitario.

  10. Aspectos das fortalezas e fragilidades no uso das metodologias ativas de aprendizagem

    Directory of Open Access Journals (Sweden)

    Maria José Sanches Marin

    Full Text Available A implementação de novos modelos de ensino-aprendizagem vem ocorrendo na Faculdade de Medicina de Marília (Famema há mais de uma década. O presente estudo analisa as fortalezas e fragilidades dos métodos ativos de aprendizagem na ótica dos estudantes. Para a coleta de dados, realizaram-se entrevistas com estudantes dos cursos de Enfermagem e Medicina. Os dados foram interpretados por meio dos parâmetros da hermenêutica dialética. Os sentidos extraídos das falas dos estudantes indicam que as metodologias ativas estimulam o estudo constante, a independência e a responsabilidade, possibilitam a integração das dimensões biopsicossociais, preparam para o trabalho em equipe e aproximam os alunos dos usuários e da equipe. No entanto, nem todos estão preparados para isso; algumas vezes, sentem-se perdidos em busca de conhecimentos, além de apresentarem dificuldades quanto a sua inserção na equipe de saúde. A construção de novos modelos de aprendizagem requer constante empenho, visando ao seu aperfeiçoamento.

  11. Knowledge about epilepsy by students and staff of a school in Fortaleza-CE

    Directory of Open Access Journals (Sweden)

    Silvânia Maria Mendes Vasconcelos

    2009-12-01

    Full Text Available Objective: To assess the knowledge of teachers, students and employees of a school about epilepsy. Methods: A descriptive cross-sectional, quantitative study held in a school in Fortaleza - CE. The universe consisted of all students and staff at the school who met the following inclusion criteria: to be a student or employee of the night shift, to be 18 years old or above. Data collection occurred in September 2007, by applying a structured questionnaire. From 69 questionnaires, 50 were completed by students, 11 by teachers and eight by other school employees. We divided the sample into two groups: staff (employees and teachers and students. Results: The results show that 22% of staff believed that one of the forms of epilepsy transmission occurred through saliva. It was found that 98% of staff and 94% of students said that epilepsy is a neurological disorder. Concerning the control of the disease, 94% of students and 78% of staff believed that it occurs by taking the medication daily. Among the respondents, 29% of staff and 22% of students felt that people with epilepsy have difficulty in school learning. It was also observed that most participants scored appropriate procedures to be adopted in the seizure. Conclusion: The research determined gaps in the knowledge about epilepsy in the studied sample.

  12. Evaluation of satisfaction of users of erp systems in medium clothing confection companies in Fortaleza

    Directory of Open Access Journals (Sweden)

    Francismilton Teles

    2014-05-01

    Full Text Available One of the tools that help increase the competitiveness in small and medium companies is the use of ERP (Enterprise Resources Planning, which, when used properly, assist in planning, management and control. It is very important to check the success of such systems in companies and one of the most widely accepted means of analyzing them is by evaluating the satisfaction of its users. This paper assess the satisfaction of users of ERP systems in medium manufacturing clothing in Fortaleza, one of the largest centers of clothing confection from Brazil. The method used was the Survey Research, though which 117 users were interviewed in 25 companies and followed the evaluation model customized by Ely (2010, which are evaluated quantitatively the satisfaction of end users and key users of an ERP system. The results show, in general, users are satisfied with the ERP systems implemented. It was also verified by multivariate analysis, the model used was appropriate to the context of medium enterprises, because the statistical tests (Cronbach’s alpha, Bartlett’s Sphericity and KMO scores were very reliable.

  13. [Costs with personnel and productivity analysis of family health program teams in Fortaleza, Ceará].

    Science.gov (United States)

    Rocha Filho, Fernando dos Santos; da Silva, Marcelo Gurgel Carlos

    2009-01-01

    The research verified the productivity and the operational personnel costs of eight teams of the Family Health Program (PSF) of two Basic Units of Family Health (UBASF) in Fortaleza, Ceará, through the methodology of costs by absorption, in 2004. The largest expenses were with personnel (75%), mainly with the PSF teams, and medicines (18%). The federal allocations received in September, 2004, by each PSF team, were R$ 9,543.33. The total cost by team was R$ 15,719.00. Some professionals of various PSF teams showed productivity above the set objectives, but the average productivity by doctor and nurse was below fifty per cent of objectives, with high idle time making the work onerous. The unity cost of home visits by doctor and prenatal attendance by nurses were checked, and, would be less expensive if the idle time were reduced. Various alternatives of cost reduction were observed, such as scale savings of some resources and services and re-negotiation of contracts with suppliers and cooperatives. The data obtained will contribute to more accurate planning for the installation and maintenance of PSF teams as well as alternatives of cost reductions, higher productivity, and better quality.

  14. Asistencia a mujeres embarazadas con VIH/sida en Fortaleza, Ceará, Brasil

    Directory of Open Access Journals (Sweden)

    Karla Santana Azevedo Damasceno

    2013-01-01

    Full Text Available El objetivo de este estudio es analizar los resultados perinatales de las medidas profilácticas adoptadas en la prevención de la transmisión vertical del VIH. Se realizó una investigación de las historias clínicas de 168 mujeres con VIH y sus recién nacidos en una maternidad pública de Fortaleza, estado de Ceará, entre 2005 y 2009. Los datos se obtuvieron entre los meses de marzo y septiembre de 2010 y fueron analizados con el programa SPSS 10.0. Las embarazadas que conocían el diagnóstico en forma previa al embarazo tuvieron una rápida atención que permitió una terapia antirretroviral eficaz y un mayor número de controles (p<0,05. Se administró terapia antirretroviral al 97,6% de las embarazadas, triple esquema al 88,7%; AZT intraparto al 95,2% y AZT oral en jarabe al 100% de los recién nacidos. Predominó la cesárea (92,8% asociada al AZT intraparto al ser cotejada con el parto vaginal (p<0,001. La cesárea proporcionó mayor administración de AZT intraparto.

  15. Cogeneration in Mexico: Weaknesses, Threats, strengths and opportunities; Cogeneracion en Mexico: Debilidades, amenazas, fortalezas y oportunidades

    Energy Technology Data Exchange (ETDEWEB)

    Elizalde Baltierra, Alberto; Garcia Pelaez, Juan [Programa Universitario de Energia, UNAM (Mexico)

    1997-07-01

    In this paper the strategies are formulated and evaluated, taking into account the internal and external aspects of the cogeneration in Mexico that foment their development in the medium term (two or four years). In the formulation of strategies a matrix DAFO (Weaknesses, Threats, Strengths and Opportunities) is employed and in the evaluation is applied the procedure of analytical hierarchical structuring. The future on the cogeneration in the next years will depend on diverse factors, among which can be mentioned: the legal frame; the financial situation of the interested companies; the outsourcing of financing; the prices of the electricity and fuels, as well as their availability, among others. [Spanish] En este trabajo se formulan y evaluan estrategias que, tomando en cuenta los aspectos internos y externos de la cogeneracion en Mexico, fomenten su desarrollo en el mediano plazo (dos o cuatro anos). En la formulacion de estrategias se emplea la matriz DAFO (Debilidades, Amenazas, Fortalezas y Oportunidades) y en la evaluacion se aplica el procedimiento de jerarquizacion analitica. El futuro de la cogeneracion en los proximos anos dependera de diversos factores, entre los que se pueden mencionar: el marco legal; la situacion financiera de las empresas interesadas; las fuentes externas de financiamiento; los precios de la electricidad y de los combustibles, asi como su disponibilidad, entre otros.

  16. The equatorial F-layer: progress and puzzles

    Directory of Open Access Journals (Sweden)

    H. Rishbeth

    Full Text Available This work reviews some aspects of the ionospheric F-layer in the vicinity of the geomagnetic equator. Starting with a historical introduction, brief summaries are given of the physics that makes the equatorial ionosphere so interesting, concentrating on the large-scale structure rather than the smaller-scale instability phenomena. Several individual topics are then discussed, including eclipse effects, the asymmetries of the `equatorial trough', variations with longitude, the semiannual variation, the effects of the global thermospheric circulation, and finally the equatorial neutral thermosphere, including `superrotation' and possible topographic influences.

    Keyword: Ionosphere (equatorial ionosphere

  17. Estimates of upwelling rates in the Arabian Sea and the equatorial Indian Ocean based on bomb radiocarbon.

    Science.gov (United States)

    Bhushan, R; Dutta, K; Somayajulu, B L K

    2008-10-01

    Radiocarbon measurements were made in the water column of the Arabian Sea and the equatorial Indian Ocean during 1994, 1995 and 1997 to assess the temporal variations in bomb 14C distribution and its inventory in the region with respect to GEOSECS measurements made during 1977-1978. Four GEOSECS stations were reoccupied (three in the Arabian Sea and one in the equatorial Indian Ocean) during this study, with all of them showing increased penetration of bomb 14C along with decrease in its surface water activity. The upwelling rates derived by model simulation of bomb 14C depth profile using the calculated exchange rates ranged from 3 to 9 m a(-1). The western region of the Arabian Sea experiencing high wind-induced upwelling has higher estimated upwelling rates. However, lower upwelling rates obtained for the stations occupied during this study could be due to reduced 14C gradient compared to that during GEOSECS.

  18. An equatorial coronal hole at solar minimum

    Science.gov (United States)

    Bromage, B. J. I.; DelZanna, G.; DeForest, C.; Thompson, B.; Clegg, J. R.

    1997-01-01

    The large transequatorial coronal hole that was observed in the solar corona at the end of August 1996 is presented. It consists of a north polar coronal hole called the 'elephant's trunk or tusk'. The observations of this coronal hole were carried out with the coronal diagnostic spectrometer onboard the Solar and Heliospheric Observatory (SOHO). The magnetic field associated with the equatorial coronal hole is strongly connected to that of the active region at its base, resulting in the two features rotating at almost the same rate.

  19. Investigations of equatorial ionosphere nighttime mode conversion at VLF

    Science.gov (United States)

    Hildebrand, Verne

    1993-05-01

    VLF Radiowave propagation provides one of the few viable tools for exploring the properties of the lower D-region ionosphere. Conversely, VLF communications coverage analysis and prediction is directly dependent on the quality of models for the D-region ionosphere. The VLF Omega navigation signals are an excellent and under-utilized resource for conducting D-region research in direct support of VLF communications. Stations are well placed for investigating polar, mid latitude, and equatorial phenomena. Much can be learned by fully utilizing the very stable signals radiated at five frequencies, available from each of the eight transmitters, and taking full advantage of modal structure. While the Omega signals, 10.2 to 13.6 kHz, are well below the VLF communications band, we contend that much of the knowledge gained on D-region characteristics can be directly applied at the higher frequencies. The opportunity offered by Omega needs to be exploited. With the Global Positioning System (GPS) coming onboard as the prime means for global navigation, pressure is mounting to phase out Omega. In this paper we describe how we are using Omega along with computer codes of full wave VLF propagation, provided to us by the U.S. Naval Ocean Systems Center (NOSC), for ionosphere research and by example illustrate the potential for other investigations.

  20. Tree rings and rainfall in the equatorial Amazon

    Science.gov (United States)

    Granato-Souza, Daniela; Stahle, David W.; Barbosa, Ana Carolina; Feng, Song; Torbenson, Max C. A.; de Assis Pereira, Gabriel; Schöngart, Jochen; Barbosa, Joao Paulo; Griffin, Daniel

    2018-05-01

    The Amazon basin is a global center of hydroclimatic variability and biodiversity, but there are only eight instrumental rainfall stations with continuous records longer than 80 years in the entire basin, an area nearly the size of the coterminous US. The first long moisture-sensitive tree-ring chronology has been developed in the eastern equatorial Amazon of Brazil based on dendrochronological analysis of Cedrela cross sections cut during sustainable logging operations near the Rio Paru. The Rio Paru chronology dates from 1786 to 2016 and is significantly correlated with instrumental precipitation observations from 1939 to 2016. The strength and spatial scale of the precipitation signal vary during the instrumental period, but the Rio Paru chronology has been used to develop a preliminary reconstruction of February to November rainfall totals from 1786 to 2016. The reconstruction is related to SSTs in the Atlantic and especially the tropical Pacific, similar to the stronger pattern of association computed for the instrumental rainfall data from the eastern Amazon. The tree-ring data estimate extended drought and wet episodes in the mid- to late-nineteenth century, providing a valuable, long-term perspective on the moisture changes expected to emerge over the Amazon in the coming century due to deforestation and anthropogenic climate change.

  1. Magnetic activity effect on equatorial spread-F under high and low solar activity conditions

    Energy Technology Data Exchange (ETDEWEB)

    Subbarao, K S.V.; Somayajulu, V V; Krishna Murthy, B V

    1986-08-01

    The effect of magnetic activity on spread-F at two equatorial stations, Trivandrum and Huancayo, separated in longitude by about 150 deg, under high and low solar activity conditions has been investigated. Magnetic activity produces strong inhibition effect on spread-F at Huancayo compared to that at Trivandrum especially during high solar activity period. This results in a decrease of spread-F with solar activity at Huancayo in contrast to Trivandrum. These findings are explained in terms of F-region electrodynamics and Rayleigh-Taylor instability mechanism for spread-F.

  2. On the how latitude scanning photometer signatures of equatorial ionosphere plasma bubbles

    International Nuclear Information System (INIS)

    Abdu, M.A.; Sobral, J.H.A.; Nakamura, Y.

    1985-01-01

    Meridional and east-west scan 6300 (angstrom) night airglow photometer are being extensively used at the low latitude station Cachoeira Paulista (23 0 S 45 0 W, dip latitude 14 0 ), Brazil, for investigation of trans-equatorial ionospheric plasma bubble dynamics. The zonal velocities of the flux aligned plasma bubbles can be determined, in a straingforward way, from the east-west displacement of the airglow intensity valleys observed by the east-west scan photometer. On the other hand, the determination of the other velocity component of the plasma bubble motion (namely, vertical motion in the equatorial plane) has to be based on the meridional propagation of the airglow valleys observed by the meriodinal scan photometer. Such determinatios of the bubbles vertical rise velocity should, however, involved considerations on different bubble parameters such as, for exemple, the phase of the bubble event (whether growth, mature or decay phase), the limited east-west extension, and the often observed westward tilt of the bubble. In this brief report there were condidered in some detail, possible influences of these different factors on the interpretation of low latitude scanning photometer data to infer trans-equatorial plasma bubble dynamics. (author) [pt

  3. Study of the behaviour of the equatorial ionization anomaly (EIA) during solar flares

    Science.gov (United States)

    Aggarwal, Malini; Astafyeva, Elvira

    2014-05-01

    A solar flare occurring in the sun's chromosphere is observed in various wavebands (radio to x-rays). The response of the solar flare which causes sudden changes in the earth's ionosphere is not yet well understood though investigations suggested that its impact depends on the size and location of occurrence of solar flare on sun. Considering this, we have carried an investigation to study the response of two strong and gradual solar flares: 2 Apr 2001 (X20, limb) and 7 Feb 2010 (M6.4, disk) on the earth's equatorial-low latitude regions using multi-technique observations of satellite and ground-based instruments. We found a weakening of strength of equatorial ionization anomaly (EIA) in total electron content during both the flares as observed by TOPEX, JASON-1 and JASON-2 altimeter measurements. The H component of the geomagnetic field also shows a sudden change at equatorial and low latitude stations in the sunlit hemisphere during the flare. The observations of ionosonde at low-latitudes indicate a strong absorption of higher-frequency radio signals. The detail response of these flare on EIA of the earth's ionosphere will be presented and discussed.

  4. RE-TRATOS DA JUVENTUDE NA CIDADE DE FORTALEZA: DIREITOS HUMANOS E INTERVENÇÕES MICROPOLÍTICAS

    Directory of Open Access Journals (Sweden)

    João Paulo Pereira Barros

    2016-07-01

    Full Text Available Este artigo visa analisar processos de criminalização e extermínio de jovens em Fortaleza, capital brasileira com maior índice de homicídios desses segmentos, e dar visibilidade a práticas micropolíticas frente a tais aviltamentos de direitos humanos na periferia da cidade. Será utilizado o caso da cidade de Fortaleza para discutir relações entre estado neoliberal e recrudescimento da criminalização e do extermínio de jovens. Em um segundo momento, serão apresentadas experiências institucionais desenvolvidas por um projeto de extensão ligado ao Departamento de Psicologia da Universidade Federal do Ceará (UFC, em territórios de Fortaleza com expressivos registros de letalidade juvenil. Destacam-se experiências de criação de dispositivos de análise coletiva da violência urbana envolvendo jovens, na forma de oficinas e rodas de conversa realizadas entre 2015 e 2016, junto a moradores e trabalhadores sociais inseridos em um dos principais equipamentos da política de juventude fortalezense. Será apresentada também a participação das ações extensionistas em atos públicos voltados à problematização do encarceramento e do homicídio de adolescentes e jovens. Conclui-se o artigo apontando a proficuidade dessas análises e experiências para a formação em psicologia, articulando temas como violência, exclusão social e modos de subjetivação. Palavras-chave: Juventude; violência urbana; direitos humanos; psicologia.   This article aims to analyze processes of criminalization and young extermination in Fortaleza, Brazilian capital with the highest murder rate in these segments, and give visibility to micropolitical front interventions such defilements of human rights on the outskirts of the city. relations between neoliberal state and recrudescence of criminalization and extermination of young people will be discussed, emphasizing its brands in Fortaleza. In a second stage, interventions will be presented around the

  5. Preliminary report: STOIC CGCM intercomparison - equatorial sections

    International Nuclear Information System (INIS)

    Davey, M; Huddleston, M; Sperber, K R.

    1999-01-01

    An intercomparison and assessment of the tropical behaviour of coupled general circulation models (CGCMs) is being carried out, to identify common strengths and weaknesses and thus guide future CGCM development. The work is being carried out as part of the CLIVAR climate research programme, as a WG-SIP (Working Group on Seasonal to Interannual Prediction) project called STOIC (Study of Tropical Oceans In CGCMs), organised by Michael Davey. This project complements a companion sub-project called ENSIP (El Ni no Simulation Intercomparison Project) organised by Mojib Latif (Max- Planck-Institute for Meteorology) that focusses on equatorial Pacific CGCM behaviour (Latif et al. 1999). Previous coupled model assessments (Mechoso et al. 1995, Neelin et al. 1992, and ENSIP) have focussed on tropical Pacific behaviour. The aim of STOIC is to look at model performance in all tropical ocean regions. This status report contains a sample of the STOIC assessment work, highlighting mean and inter- annual equatorial sea surface temperatures and zonal windstresses. The intention is to submit STOIC and ENSIP papers in mid-1999 for publication together in a refereed journal

  6. Nighttime ionospheric D region: Equatorial and nonequatorial

    Science.gov (United States)

    Thomson, Neil R.; McRae, Wayne M.

    2009-08-01

    Nighttime ionospheric D region parameters are found to be generally well modeled by the traditional H‧ and β as used by Wait and by the U.S. Navy in their Earth-ionosphere VLF radio waveguide programs. New comparisons with nonequatorial, mainly all-sea VLF path observations reported over several decades are shown to be consistent with the previously determined height H‧ ˜ 85.0 km and sharpness β ˜ 0.63 km-1. These paths include NPM (Hawaii) to Washington, D. C., Omega Hawaii and NLK (Seattle) to Japan, NWC (N.W. Australia) to Madagascar, and NBA (Panama) to Colorado. In marked contrast, transequatorial path observations (even when nearly all-sea) are found to be often not well modeled: for example, for Omega Japan and JJI (Japan) to Dunedin, New Zealand, the observed amplitudes are markedly lower than those which would be expected from H‧ ˜ 85.0 km and β ˜ 0.63 km-1, or any other realistic values of H‧ and β. Other transequatorial observations compared with modeling include NWC to Japan, Omega Hawaii to Dunedin, and NPM (Hawaii) to Dunedin. It is suggested that the effects of irregularities in the equatorial electrojet may extend down into the nighttime D region and so account for the observed equatorial VLF perturbations through scattering or mode conversion.

  7. Central Equatorial Pacific Experiment (CEPEX). Design document

    Energy Technology Data Exchange (ETDEWEB)

    1993-04-01

    The Earth`s climate has varied significantly in the past, yet climate records reveal that in the tropics, sea surface temperatures seem to have been remarkably stable, varying by less than a few degrees Celsius over geologic time. Today, the large warm pool of the western Pacific shows similar characteristics. Its surface temperature always exceeds 27{degree}C, but never 31{degree}C. Heightened interest in this observation has been stimulated by questions of global climate change and the exploration of stabilizing climate feedback processes. Efforts to understand the observed weak sensitivity of tropical sea surface temperatures to climate forcing has led to a number of competing ideas about the nature of this apparent thermostat. Although there remains disagreement on the processes that regulate tropical sea surface temperature, most agree that further progress in resolving these differences requires comprehensive field observations of three-dimensional water vapor concentrations, solar and infrared radiative fluxes, surface fluxes of heat and water vapor, and cloud microphysical properties. This document describes the Central Equatorial Pacific Experiment (CEPEX) plan to collect such observations over the central equatorial Pacific Ocean during March of 1993.

  8. Response of equatorial, low- and mid-latitude F-region in the American sector during the intense geomagnetic storm on 24-25 October 2011

    Science.gov (United States)

    de Jesus, R.; Sahai, Y.; Fagundes, P. R.; de Abreu, A. J.; Brunini, C.; Gende, M.; Bittencourt, J. A.; Abalde, J. R.; Pillat, V. G.

    2013-07-01

    In this paper, we present and discuss the response of the ionospheric F-region in the American sector during the intense geomagnetic storm which occurred on 24-25 October 2011. In this investigation ionospheric sounding data obtained of 23, 24, 25, and 26 October 2011 at Puerto Rico (United States), Jicamarca (Peru), Palmas, São José dos Campos (Brazil), and Port Stanley, are presented. Also, the GPS observations obtained at 12 stations in the equatorial, low-, mid- and high-mid-latitude regions in the American sector are presented. During the fast decrease of Dst (about ˜54 nT/h between 23:00 and 01:00 UT) on the night of 24-25 October (main phase), there is a prompt penetration of electric field of magnetospheric origin resulting an unusual uplifting of the F region at equatorial stations. On the night of 24-25 October 2011 (recovery phase) equatorial, low- and mid-latitude stations show h'F variations much larger than the average variations possibly associated with traveling ionospheric disturbances (TIDs) caused by Joule heating at high latitudes. The foF2 variations at mid-latitude stations and the GPS-VTEC observations at mid- and low-latitude stations show a positive ionospheric storm on the night of 24-25 October, possibly due to changes in the large-scale wind circulation. The foF2 observations at mid-latitude station and the GPS-VTEC observations at mid- and high-mid-latitude stations show a negative ionospheric storm on the night of 24-25 October, probably associated with an increase in the density of molecular nitrogen. During the daytime on 25 October, the variations in foF2 at mid-latitude stations show large negative ionospheric storm, possibly due to changes in the O/N2 ratio. On the night of 24-25, ionospheric plasma bubbles (equatorial irregularities that extended to the low- and mid-latitude regions) are observed at equatorial, low- and mid-latitude stations. Also, on the night of 25-26, ionospheric plasma bubbles are observed at equatorial

  9. Amtrak Stations

    Data.gov (United States)

    Department of Homeland Security — Updated database of the Federal Railroad Administration's (FRA) Amtrak Station database. This database is a geographic data set containing Amtrak intercity railroad...

  10. Clinical And Epidemiological Aspects Of Hepatitis B Virus And Hepatitis C Virus In Fortaleza-Ceara

    Directory of Open Access Journals (Sweden)

    Gizelly Castelo Branco Brito

    2017-06-01

    Full Text Available Introduction: Viral hepatitis is among the main problems that affect public health globally. The knowledge of the clinical and epidemiological situation of hepatitis B and hepatitis C is necessary for the establishment of prevention and control strategies together with individuals and communities in vulnerable situations. Objective: To investigate the clinical and epidemiological aspects of the population affected by hepatitis B and hepatitis C from 2007 to 2014, in Fortaleza, Ceara, Brazil. Methodology: Descriptive, retrospective study involving data from the Notifiable Diseases Information System, with analysis of gender, age, race, illicit drug use, sex partnerships, tattoo/piercing, transfusion, dialysis and transplantation. Chi-squared tests were used for statistical analysis of the variables. Results: It was reported 779 cases of hepatitis B and 756 of hepatitis C. Regarding the HBV, 69.7% were male, 77.5% of brown color, and a median age of 36 years. Regarding risk factors, there was highlight for sexual practice and number of sex partners (p = 0.001, blood transfusion (p = 0.011 and use of tattoo/piercing (p = 0.011. As for HCV, 57.7% were male and the mean age was 46 years. As for risk factors, the injecting drug use (p = 0.001, the presence of three or more partners (p = 0.001 and the use of tattoo/piercing (p = 0.021 stood out. Regardless of gender, age or race and drug use, transfusions and age over 40 years increased the risk for hepatitis. There were still high percentages of missing data in several variables. Conclusion: This study contributes to alert the Brazilian health authorities on the importance of these infections and the need to expand and strengthen current health policies, and allows reflection on control strategies for hepatitis. Keywords: Hepatitis B; Hepatitis C; Risk factors.

  11. Estado nutricional de lactentes em áreas periféricas de Fortaleza

    Directory of Open Access Journals (Sweden)

    SOARES Nadia Tavares

    2000-01-01

    Full Text Available O presente estudo foi realizado com a finalidade de caracterizar a prevalência da má nutrição entre crianças menores de um ano vinculadas ao Fundo Cristão para Crianças em dois bairros periféricos de Fortaleza: Presidente Kennedy e Álvaro Weine. Desnutrição protéico-energética, obesidade e anemia ferropriva foram diagnosticadas através dos seguintes indicadores: peso ao nascer +2 desvios-padrão da mediana de referência do National Center for Health Statistics, hemoglobina < 11 g/dl, hematócrito < 32%, volume corpuscular médio <72 fl e hemoglobina corpuscular média < 24 pg. O peso ao nascer foi obtido através da entrevista domiciliar, enquanto que as demais medidas antropométricas e as amostras de sangue foram colhidas em uma das unidades do Fundo Cristão para Crianças, seguindo os procedimentos técnicos recomendados. Das 110 crianças catalogadas, 96 foram pesadas e medidas e 75 fizeram o exame de sangue. A análise dos dados revelou 7% de baixo peso ao nascer, 10% de desnutrição crônica, 8% de obesidade e 60% de anemia. Possivelmente, a dieta que as crianças receberam contribuiu para o comprometimento nutricional encontrado. Parece essencial a realização de mais estudos sobre prática alimentar nestas comunidades.

  12. Estado nutricional de lactentes em áreas periféricas de Fortaleza

    Directory of Open Access Journals (Sweden)

    Nadia Tavares SOARES

    2000-08-01

    Full Text Available O presente estudo foi realizado com a finalidade de caracterizar a prevalência da má nutrição entre crianças menores de um ano vinculadas ao Fundo Cristão para Crianças em dois bairros periféricos de Fortaleza: Presidente Kennedy e Álvaro Weine. Desnutrição protéico-energética, obesidade e anemia ferropriva foram diagnosticadas através dos seguintes indicadores: peso ao nascer +2 desvios-padrão da mediana de referência do National Center for Health Statistics, hemoglobina < 11 g/dl, hematócrito < 32%, volume corpuscular médio <72 fl e hemoglobina corpuscular média < 24 pg. O peso ao nascer foi obtido através da entrevista domiciliar, enquanto que as demais medidas antropométricas e as amostras de sangue foram colhidas em uma das unidades do Fundo Cristão para Crianças, seguindo os procedimentos técnicos recomendados. Das 110 crianças catalogadas, 96 foram pesadas e medidas e 75 fizeram o exame de sangue. A análise dos dados revelou 7% de baixo peso ao nascer, 10% de desnutrição crônica, 8% de obesidade e 60% de anemia. Possivelmente, a dieta que as crianças receberam contribuiu para o comprometimento nutricional encontrado. Parece essencial a realização de mais estudos sobre prática alimentar nestas comunidades.

  13. Gastrointestinal and ectoparasites from urban stray dogs in Fortaleza (Brazil): high infection risk for humans?

    Science.gov (United States)

    Klimpel, Sven; Heukelbach, Jörg; Pothmann, David; Rückert, Sonja

    2010-08-01

    Dogs are important definite or reservoir hosts for zoonotic parasites. However, only few studies on the prevalence of intestinal parasites in urban areas in Brazil are available. We performed a comprehensive study on parasites of stray dogs in a Brazilian metropolitan area. We included 46 stray dogs caught in the urban areas of Fortaleza (northeast Brazil). After euthanization, dogs were autopsied. Ectoparasites were collected, and the intestinal content of dogs were examined for the presence of parasites. Faecal samples were collected and analysed using merthiolate iodine formaldehyde concentration method. A total of nine different parasite species were found, including five endoparasite (one protozoan, one cestode and three nematode species) and four ectoparasite species (two flea, one louse and one tick species). In the intestinal content, 3,162 specimens of four helminth species were found: Ancylostoma caninum (prevalence, 95.7%), Dipylidium caninum (45.7%), Toxocara canis (8.7%) and Trichuris vulpis (4.3%). A total of 394 ectoparasite specimens were identified, including Rhipicephalus sanguineus (prevalence, 100.0%), Heterodoxus spiniger (67.4%), Ctenocephalides canis (39.1%) and Ctenocephalides felis (17.4%). In the faeces, intestinal parasites were detected in 38 stray dogs (82.6%), including oocysts of Giardia sp. (2.2%) and eggs of the nematode A. caninum (82.6%). Neither eggs nor larval stages of D. caninum, T. canis or T. vulpis were detected in dog faeces. Sensitivity of faecal examination for A. caninum was 86.4% (95% confidence interval, 72.0-94.3) but zero percentage for the other intestinal helminth species. Our data show that stray dogs in northeast Brazil carry a multitude of zoonotic ecto- and endoparasites, posing a considerable risk for humans. With the exception of A. caninum, sensitivity of faecal examination was negligible.

  14. Equatorial electrojet and its response to external electromagnetic effects

    Science.gov (United States)

    Bespalov, P. A.; Savina, O. N.

    2012-09-01

    In the quiet low-latitude Earth's ionosphere, a sufficiently developed current system that is responsible for the Sq magnetic-field variations is formed in quiet Sun days under the action of tidal streams. The density of the corresponding currents is maximum in the midday hours at the equatorial latitudes, where the so-called equatorial electrojet is formed. In this work, we discuss the nature of the equatorial electrojet. This paper studies the value of its response to external effects. First of all, it is concerned with estimating the possibility of using the equatorial electrojet for generating low-frequency electromagnetic signals during periodic heating of the ionosphere by the heating-facility radiation. The equatorial electrojet can also produce electrodynamic response to the natural atmospheric processes, e.g., an acoustic-gravity wave.

  15. Long wavelength irregularities in the equatorial electrojet

    International Nuclear Information System (INIS)

    Kudeki, E.; Farley, D.T.; Fejer, B.G.

    1982-01-01

    We have used the radar interferometer technique at Jicamarca to study in detail irregularities with wavelengths of a few kilometers generated in the unstable equatorial electrojet plasma during strong type 1 conditions. In-situ rocket observations of the same instability process are discussed in a companion paper. These large scale primary waves travel essentially horizontally and have large amplitudes. The vertical electron drift velocities driven by the horizontal wave electric fields reach or exceed the ion-acoustic velocity even though the horizontal phase velocity of the wave is considerably smaller. A straightforward extension to the long wavelength regime of the usual linear theory of the electrojet instability explains this and several other observed features of these dominant primary waves

  16. Linear theory of equatorial spread F

    International Nuclear Information System (INIS)

    Hudson, M.K.; Kennel, C.F.

    1975-01-01

    A fluid dispersion relation for the drift and interchange (Rayleigh-Taylor) modes in a collisional plasma forms the basis for a linear theory of equatorial spread F. The collisional drift mode growth rate will exceed the growth rate of the Rayleigh-Taylor mode at short perpendicular wavelengths and density gradient scale lengths, and the drift mode can grow on top side as well as on bottom side density gradients. However, below the F peak, where spread F predominates, it is concluded that both the drift and the Rayleigh-Taylor modes contribute to the total spread F spectrum, the Rayleigh-Taylor mode dominating at long and the drift mode at short perpendicular wavelengths above the ion Larmor radius

  17. Equatorial circular motion in Kerr spacetime

    International Nuclear Information System (INIS)

    Pugliese, Daniela; Quevedo, Hernando; Ruffini, Remo

    2011-01-01

    We analyze the properties of circular orbits of test particles on the equatorial plane of a rotating central mass whose gravitational field is described by the Kerr spacetime. For rotating black holes and naked singularities we explore all the spatial regions where circular orbits can exist and analyze the behavior of the energy and the angular momentum of the corresponding test particles. In particular, we find all the radii at which a test particle can have zero angular momentum due to the repulsive gravity effects generated by naked singularities. We classify all the stability zones of circular orbits. It is shown that the geometric structure of the stability zones of black holes is completely different from that of naked singularities.

  18. Trophic Diversity of Plankton in the Epipelagic and Mesopelagic Layers of the Tropical and Equatorial Atlantic Determined with Stable Isotopes

    Directory of Open Access Journals (Sweden)

    Antonio Bode

    2018-06-01

    Full Text Available Plankton living in the deep ocean either migrate to the surface to feed or feed in situ on other organisms and detritus. Planktonic communities in the upper 800 m of the tropical and equatorial Atlantic were studied using the natural abundance of stable carbon and nitrogen isotopes to identify their food sources and trophic diversity. Seston and zooplankton (>200 µm samples were collected with Niskin bottles and MOCNESS nets, respectively, in the epipelagic (0–200 m, upper mesopelagic (200–500 m, and lower mesopelagic layers (500–800 m at 11 stations. Food sources for plankton in the productive zone influenced by the NW African upwelling and the Canary Current were different from those in the oligotrophic tropical and equatorial zones. In the latter, zooplankton collected during the night in the mesopelagic layers was enriched in heavy nitrogen isotopes relative to day samples, supporting the active migration of organisms from deep layers. Isotopic niches showed also zonal differences in size (largest in the north, mean trophic diversity (largest in the tropical zone, food sources, and the number of trophic levels (largest in the equatorial zone. The observed changes in niche size and overlap (up to 71% between the mesopelagic layers but <50% between the epipelagic and upper mesopelagic layers support the prevalence of in situ feeding at deep layers in tropical and equatorial zooplankton.

  19. Dynamical variability in Saturn Equatorial Atmosphere

    Science.gov (United States)

    Sánchez-Lavega, A.; Pérez-Hoyos, S.; Hueso, R.; Rojas, J. F.; French, R. G.; Grupo Ciencias Planetarias Team

    2003-05-01

    Historical ground-based and recent HST observations show that Saturn's Equatorial Atmosphere is the region where the most intense large-scale dynamical variability took place at cloud level in the planet. Large-scale convective storms (nicknamed the ``Great White Spots") occurred in 1876, 1933 and 1990. The best studied case (the 1990 storm), produced a dramatic change in the cloud aspect in the years following the outburst of September 1990. Subsequently, a new large storm formed in 1994 and from 1996 to 2002 our HST observations showed periods of unusual cloud activity in the southern part of the Equator. This contrast with the aspect observed during the Voyager 1 and 2 encounters in 1980 and 1981 when the Equator was calm, except for some mid-scale plume-like features seen in 1981. Cloud-tracking of the features have revealed a dramatic slow down in the equatorial winds from maximum velocities of ˜ 475 m/s in 1980-1981 to ˜ 275 m/s during 1996-2002, as we have recently reported in Nature, Vol. 423, 623 (2003). We discuss the possibility that seasonal and ring-shadowing effects are involved in generating this activity and variability. Acknowledgements: This work was supported by the Spanish MCYT PNAYA 2000-0932. SPH acknowledges a PhD fellowship from the Spanish MECD and RH a post-doc fellowship from Gobierno Vasco. RGF was supported in part by NASA's Planetary Geology and Geophysics Program NAG5-10197 and STSCI Grant GO-08660.01A.

  20. Calidad de vida en adolescentes: Análisis desde las fortalezas personales y las emociones negativas

    OpenAIRE

    Quiceno, Japcy Margarita; Vinaccia, Stefano

    2014-01-01

    El objetivo de este estudio fue comparar las relaciones de las fortalezas personales y las emociones negativas sobre la calidad de vida de 686 adolescentes escolarizados de la ciudad de Bogotá, Colombia, según el sexo y el estrato socioeconómico. Instrumentos: escala de resiliencia adolescente ARS, escala de autotrascendencia adolescente STS, escala subjetiva de felicidad SHS, test de orientación de vida en jóvenes YLOT, inventario de depresión infantil CDI, inventario infantil de estresores ...

  1. Sporadic-E associated with the Leonid meteor shower event of November 1998 over low and equatorial latitudes

    Directory of Open Access Journals (Sweden)

    H. Chandra

    2001-01-01

    Full Text Available Rapid radio soundings were made over Ahmedabad, a low latitude station during the period 16–20 November 1998 to study the sporadic-E layer associated with the Leonid shower activity using the KEL Aerospace digital ionosonde. Hourly ionograms for the period 11 November to 24 November were also examined during the years from 1994 to 1998. A distinct increase in sporadic-E layer occurrence is noticed on 17, 18 and 19 November from 1996 to 1998. The diurnal variations  of  f0Es and fbEs also show significantly enhanced values for the morning hours of 18 and 19 November 1998. The ionograms clearly show strong sporadic-E reflections at times of peak shower activity with multiple traces in the altitude range of 100–140 km in few ionograms. Sporadic-E layers with multiple structures in altitude are also seen in some of the ionograms (quarter hourly at Thumba, situated near the magnetic equator. Few of ionograms recorded at Kodaikanal, another equatorial station, also show sporadic- E reflections in spite of the transmitter power being significantly lower. These new results highlighting the effect of intense meteor showers in the equatorial and low latitude E-region are presented.Key words. Ionosphere (equatorial ionosphere – Radio science (ionospheric physics

  2. Sporadic-E associated with the Leonid meteor shower event of November 1998 over low and equatorial latitudes

    Directory of Open Access Journals (Sweden)

    H. Chandra

    Full Text Available Rapid radio soundings were made over Ahmedabad, a low latitude station during the period 16–20 November 1998 to study the sporadic-E layer associated with the Leonid shower activity using the KEL Aerospace digital ionosonde. Hourly ionograms for the period 11 November to 24 November were also examined during the years from 1994 to 1998. A distinct increase in sporadic-E layer occurrence is noticed on 17, 18 and 19 November from 1996 to 1998. The diurnal variations 
    of  f0Es and fbEs also show significantly enhanced values for the morning hours of 18 and 19 November 1998. The ionograms clearly show strong sporadic-E reflections at times of peak shower activity with multiple traces in the altitude range of 100–140 km in few ionograms. Sporadic-E layers with multiple structures in altitude are also seen in some of the ionograms (quarter hourly at Thumba, situated near the magnetic equator. Few of ionograms recorded at Kodaikanal, another equatorial station, also show sporadic- E reflections in spite of the transmitter power being significantly lower. These new results highlighting the effect of intense meteor showers in the equatorial and low latitude E-region are presented.

    Key words. Ionosphere (equatorial ionosphere – Radio science (ionospheric physics

  3. Rocket in situ observation of equatorial plasma irregularities in the region between E and F layers over Brazil

    Directory of Open Access Journals (Sweden)

    S. Savio Odriozola

    2017-03-01

    Full Text Available A two-stage VS-30 Orion rocket was launched from the equatorial rocket launching station in Alcântara, Brazil, on 8 December 2012 soon after sunset (19:00 LT, carrying a Langmuir probe operating alternately in swept and constant bias modes. At the time of launch, ground equipment operated at equatorial stations showed rapid rise in the base of the F layer, indicating the pre-reversal enhancement of the F region vertical drift and creating ionospheric conditions favorable for the generation of plasma bubbles. Vertical profiles of electron density estimated from Langmuir probe data showed wave patterns and small- and medium-scale plasma irregularities in the valley region (100–300 km during the rocket upleg and downleg. These irregularities resemble those detected by the very high frequency (VHF radar installed at Jicamarca and so-called equatorial quasi-periodic echoes. We present evidence suggesting that these observations could be the first detection of this type of irregularity made by instruments onboard a rocket.

  4. An overview on the equatorial electrojet theoretical grounds

    International Nuclear Information System (INIS)

    Zamlutti, C.J.; Sobral, J.H.A.; Abdu, M.A.

    1988-01-01

    The grounds on which the equatorial electrojet theory is based are reexamined in a way as to suggest specific additional implementations in the existing electrodynamical modeling of this phenomena, making use of now existing improved computer processing speeds. (author) [pt

  5. ITER L 6 equatorial maintenance duct remote handling study

    International Nuclear Information System (INIS)

    Millard, J.

    1996-09-01

    The status and conclusions of a preliminary study of equatorial maintenance duct remote handling is reported. Due to issues with the original duct design a significant portion of the study had to be refocused on equatorial duct layout studies. The study gives an overview of some of the options for design of these ducts and the impact of the design on the equipment to work in the duct. To develop a remote handling concept for creating access through the ducts the following design tasks should be performed: define the operations sequences for equatorial maintenance duct opening and closing; review the remote handling requirements for equatorial maintenance duct opening and closing; design concept for door and pipe handling equipment and to propose preliminary procedures for material handling outsides the duct. 35 figs

  6. Modelling the development of mixing height in near equatorial region

    Energy Technology Data Exchange (ETDEWEB)

    Samah, A.A. [Univ. of Malaya, Air Pollution Research Unit, Kuala Lumpur (Malaysia)

    1997-10-01

    Most current air pollution models were developed for mid-latitude conditions and as such many of the empirical parameters used were based on observations taken in the mid-latitude boundary layer which is physically different from that of the equatorial boundary layer. In the equatorial boundary layer the Coriolis parameter f is small or zero and moisture plays a more important role in the control of stability and the surface energy balance. Therefore air pollution models such as the OMLMULTI or the ADMS which were basically developed for mid-latitude conditions must be applied with some caution and would need some adaptation to properly simulate the properties of equatorial boundary layer. This work elucidates some of the problems of modelling the evolution of mixing height in the equatorial region. The mixing height estimates were compared with routine observations taken during a severe air pollution episodes in Malaysia. (au)

  7. Onset conditions for equatorial spread F

    International Nuclear Information System (INIS)

    Mendillo, M.; Baumgardner, J.; Xiaoqing Pi; Sultan, P.J.; Tsunoda, R.

    1992-01-01

    The problem of day-to-day variability in the occurrence of equatorial spread F (ESF) is addressed using multidiagnostic observations and semiempirical modeling. The observational results are derived from a two-night case study of ESF onset conditions observed at Kwajalein Atoll (Marshall Islands) using the ALTAIR incoherent scatter radar and all-sky optical imaging techniques. The major difference between nights when ESF instabilities did not occur (August 14, 1988) and did occur (August 15, 1988) in the Kwajalein sector was that the northern meridional gradient of 6300-angstrom airglow was reduced on the night of limited ESF activity. Modeling results suggest that this unusual airglow pattern is due to equatorward neutral winds. Previous researchers have shown that transequatorial thermospheric winds can exert a control over ESF seasonal and longitudinal occurrence patterns by inhibiting Rayleigh-Taylor instability growth rates. They present evidence to suggest that this picture can be extended to far shorter time scales, namely, that 'surges' in transequatoral winds acting over characteristic times of a few hours to a day can result in a stabilizing influence upon irregularity growth rates. The seemingly capricious nature of ESF onset may thus be controlled, in part, by the inherent variability of low-latitude thermospheric winds

  8. An equatorial temperature and wind anomaly (ETWA)

    International Nuclear Information System (INIS)

    Raghavarao, R.; Wharton, L.E.; Mayr, H.G.; Brace, L.H.; Spencer, N.W.

    1991-01-01

    Data obtained from the WATS (Wind and Temperature Spectrometer) and LP (Langmuir Probe) experiments on board DE-2 (Dynamic Explorer) during high solar activity show evidence of anomalous latitudinal variations in the zonal winds and temperature at low latitudes. The zonal winds exhibit a broad maximum centered around the dip equator, flanked by minima on either side around 25 degrees; while the temperature exhibits a pronounced bowl-shaped minimum at the dip equator which is flanked by maxima. The two minima in the zonal winds and the corresponding maxima in the temperature are nearly collocated with the crests of the well known Equatorial Ionization Anomaly (EIA). The maximum in the zonal winds and the minimum in the gas temperature are collected with the trough of the EIA. The differences between the maxima and minima in temperature and zonal winds, on many occasions, are observed to exceed 100 K and 100 m/s, respectively. The characteristics of this new phenomenon have eluded present day empirical models of thermospheric temperature and winds. The connection among these variables can be understood from the ion-neutral drag effect on the motions of the neutrals that in turn affect their energy balance

  9. Plasma instabilities multifrequency study in equatorial electrojet

    International Nuclear Information System (INIS)

    Hanuise, C.

    1983-01-01

    In this thesis, multifrequential HF coherent radar results are presented, in the field plasma instabilities in equatorial electrojet. In a first part, characteristics of the irregularities observed either at the 3 meter wavelength by VHF radars, either at other wavelengths during pinpoint experiments, or in-situ by probe rockets are recalled. Theoretical studies progressed and are presented, at the same time with these experimental observations: instability linear theory, non linear theories, HF radar specificity, and problems associated to HF waves propagation and refraction in ionosphere. Original experimental results from Ethiopia are gathered in the second part. Plasma instability has been studied in different geophysical conditions and Doppler spectra characteristics are presented for each one of them. These characteristics are completely different according to the various cases; they are also different according to wether observations are made during the day in normal conditions (electric field pointed to the east at the equator) or in counter-electrojet conditions (electric field pointed to the west). The last part is concerned with theoretical interpretation of the previous results. A comprehensive view of the instability physical mechanisms, according to the geophysical conditions encountered, has been allowed by our results, VHF radar measurements at Jicamarca, or in situ probe measurements on the whole. Irregularities study has been limited to the E region [fr

  10. Condor equatorial electrojet campaign: Radar results

    International Nuclear Information System (INIS)

    Kudeki, E.; Fejer, B.G.; Farley, D.T.; Hanuise, C.

    1987-01-01

    A review of the experimental and theoretical background to the Condor equatorial electrojet compaign is followed by the presentation and discussion of VHF radar interferometer and HF radar backscatter data taken concurrently with two rocket in situ experiments reported in companion papers (Pfaff et al., this issue (a, b). Both experiments were conducted in strongly driven periods with the on-line radar interferometer displaying signatures of what has been interpreted in earlier radar work (Kudeki et al., 1982) as kilometer scale gradient drift waves. Low-frequency density fluctuations detected by in situ rocket sensors confirm the earlier interpretation. VHF radar/rocket data comparisons also indicate the existence of a turbulent layer in the upper portion of the daytime electrojet at about 108 km altitude driven purely by the two-stream instability. Nonlinear mode coupling of linearly growing two-stream waves to linearly damped 3-m vertical modes could account for the radar echoes scattered from this layer, which showed no indication of large-scale gradient drift waves. Nonlinear mode coupling may therefore compete with the wave-induced anomalous diffusion mechanism proposed recently by Sudan (1983) for the saturation of directly excited two-stream waves. Nighttime radar data show a bifurcated layer with the two parts having comparable echo strength but oppositely directed zonal drift velocities. The lower layer shows narrow backscatter spectra; the upper layer is characterized by kilometer scale waves and vertically propagating type 1 waves

  11. Radiation protection in hospitals of Equatorial Guinea

    International Nuclear Information System (INIS)

    Rabat Macambo, P.

    2001-01-01

    With a population of four hundred thousand (400.000) inhabitants and distributed in a territory of 28 thousand (28.000) km 2 , the use of ionizing radiations for medical practice in Equatorial Guinea is few and decreasing. It is used for diagnostic practices in the main hospitals of the country, where the work burden is not over 20 patients per day. The political, social and economical embryonic development of the country until recently had a negative influence on indicators and health organisations, so that even now the country does not have any radiological protection law, this shortness, in addition with the old architectural structure that x ray tools is lodging, as well as dosimetrical lack of employed staff, put this staff under risk of electromagnetic energy. This is to show the present survey of medical activities with ionizing radiation and to request technical support for implementing suitably the basic standards of radiation protection which will help us as basis for the elaboration outline law, on radiological protection in accordance with the new guidelines of the International Atomic Energy Agency. (author)

  12. Intraseasonal vertical velocity variation caused by the equatorial wave in the central equatorial Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Horii, T.; Masumoto, Y.; Ueki, I.; PrasannaKumar, S.; Mizuno, K.

    to the theoretical solution of the equatorial waves [Matsuno, 1966] and the phase speed of the baroclinic mode, the wave that has meridional current on the equator with a quasi-biweekly period is the anti-symmetric mixed Rossby-gravity wave. In the wave... and conclusions are given in section 5. 2. Field Experiment, Data, and Methods 2.1. MISMO Ocean Observation [8] The goal of MISMO was to observe atmospheric conditions and variability associated with intraseasonal disturbances and resulting ocean responses...

  13. Time dependent response of equatorial ionospheric electric fieldsto magnetospheric disturbances

    OpenAIRE

    Fejer, Bela G.; Scherliess, L.

    1995-01-01

    We use extensive radar measurements of F region vertical plasma drifts and auroral electrojet indices to determine the storm time dependence of equatorial zonal electric fields. These disturbance drifts result from the prompt penetration of high latitude electric fields and from the dynamo action of storm time winds which produce largest perturbations a few hours after the onset of magnetic activity. The signatures of the equatorial disturbance electric fields change significantly depending o...

  14. Equatorial ionospheric electric fields during the November 2004 magnetic storm

    OpenAIRE

    Fejer, Bela G.; Jensen, J. W.; Kikuchi, T.; Abdu, M. A.; Chau, J. L.

    2007-01-01

    [1] We use radar measurements from the Jicamarca Radio Observatory, magnetometer observations from the Pacific sector and ionosonde data from Brazil to study equatorial ionospheric electric fields during the November 2004 geomagnetic storm. Our data show very large eastward and westward daytime electrojet current perturbations with lifetimes of about an hour (indicative of undershielding and overshielding prompt penetration electric fields) in the Pacific equatorial region during the November...

  15. Performance evaluation of GPS receiver under equatorial scintillation

    Directory of Open Access Journals (Sweden)

    Alison de Oliveira Moraes

    2009-06-01

    Full Text Available Equatorial scintillation is a phenomenon that occurs daily in the equatorial region after the sunset and affects radio signals that propagate through the ionosphere. Depending on the temporal and spatial situation, equatorial scintillation can represent a problem in the availability and precision of the Global Positioning System (GPS. This work is concerned with evaluating the impact of equatorial scintillation on the performance of GPS receivers. First, the morphology and statistical model of equatorial scintillation is briefly presented. A numerical model that generates synthetic scintillation data to simulate the effects of equatorial scintillation is presented. An overview of the main theoretical principles on GPS receivers is presented. The analytical models that describe the effects of scintillation at receiver level are presented and compared with numerical simulations using a radio software receiver and synthetic data. The results achieved by simulation agreed quite well with those predicted by the analytical models. The only exception is for links with extreme levels of scintillation and when weak signals are received.

  16. Teorias médicas e gestão urbana: a seca de 1877-79 em Fortaleza Medical theories and urban management: Fortaleza's 1877-79 drought

    Directory of Open Access Journals (Sweden)

    Maria Clélia Lustosa Costa

    2004-04-01

    Full Text Available Ao longo do século XIX, as novas teorias médicas sobre a origem das doenças influenciaram normas e regulamentos de controle do comportamento da população e do espaço urbano. Neste trabalho, apresentam-se e discutem-se as idéias, práticas médicas e ações administrativas adotadas durante a seca de 1877-79 em Fortaleza, capital da província do Ceará. A seca foi acompanhada de uma epidemia de varíola e do aumento da migração da população sertaneja para a capital. Sem rede de serviços públicos capaz de atender à população de retirantes que se alojaram na cidade e nos arredores, a administração municipal esforçou-se para implementar recomendações dos médicos, baseadas nos modernos princípios de higienização. Demonstra-se, por meio da análise dos relatórios dos presidentes da província e dos inspetores de saúde pública, a influência daquelas teorias médicas sobre as práticas de reorganização urbana, numa situação de calamidade como o de Fortaleza em 1877.Down through the nineteenth century, new medical theories on the origin of disease influenced the norms and regulations that controlled the population's behavior and the urban space. The present study discusses the ideas, medical practices, and administrative initiatives adopted during the 1877-79 drought in Fortaleza, capital of Ceará province. The drought was accompanied by a smallpox epidemic, along with the increased migration of sertão dwellers to the capital. The city lacked a public service network capable of meeting the needs of this new population, which took up lodgings on the city and periphery. The municipal administration endeavored to implement the recommendations of physicians, based on modern principles of hygienization. Through an analysis of reports by the provincial presidents and by public health inspectors, the study intends to show how these medical theories influenced the practices of urban reorganization at a moment of public

  17. Station Capacity

    DEFF Research Database (Denmark)

    Landex, Alex

    2011-01-01

    the probability of conflicts and the minimum headway times into account. The last method analyzes how optimal platform tracks are used by examining the arrival and departure pattern of the trains. The developed methods can either be used separately to analyze specific characteristics of the capacity of a station......Stations are often limiting the capacity of railway networks. This is due to extra need of tracks when trains stand still, trains turning around, and conflicting train routes. Although stations are often the capacity bottlenecks, most capacity analysis methods focus on open line capacity. Therefore...... for platform tracks and the probability that arriving trains will not get a platform track immediately at arrival. The third method is a scalable method that analyzes the conflicts in the switch zone(s). In its simplest stage, the method just analyzes the track layout while the more advanced stages also take...

  18. Authigenic Uranium in Eastern Equatorial Pacific Sediments

    Science.gov (United States)

    Marcantonio, F.; Lyle, M. W.; Loveley, M. R.; Ibrahim, R.

    2014-12-01

    Authigenic U concentrations have been used as an indicator of redox state in marine sediments. Soluble U(VI) in porewaters is reduced to insoluble U(IV) under suboxic conditions setting up a diffusion gradient through which U in bottom waters is supplied to reducing sediments. Researchers have used sedimentary redox enrichment of U as a tool to identify past redox changes, which may be caused by changes in organic carbon rain rates and/or bottom water oxygen levels. Differentiating between these two explanations is important, as the former is tied to the use of authigenic U as a paleoproductivity proxy. We examined sediments from 4 sediment cores retrieved from two different localities in the Panama Basin in the eastern equatorial Pacific. Two cores were retrieved from the northern Panama basin at the Cocos Ridge, (4JC at 5° 44.7'N 85° 45.5' W, 1730 m depth; 8JC at 6° 14.0'N 86° 2.6' W, 1993 m depth), and two were retrieved from the south at the Carnegie Ridge, (11JC at 0° 41.6'S 85° 20.0' W, 2452 m depth; 17JC at 0° 10.8'S 85° 52.0' W, 2846 m depth). Using 230Th systematics and seismic profiling at each of the sites, we've identified significant sediment winnowing (4JC and 11JC) and focusing (8JC and 17JC). At all sites, we believe that changes in age-model-derived sand (i.e., >63µm) mass accumulation rates (MAR) best represent changes in rain rates. Glacial rain rates are higher than those in the Holocene by a factor of 2-3 at both sites. Peak Mn levels (>1%), the brown-to-green color transition (which likely represents the oxic/post-oxic boundary), and peak U concentrations all appear in the same order with increasing depth down core. At the Carnegie sites, where MARs are greater than those at the Cocos sites, increases in authigenic U (up to 4 ppm) occur during the mid- to late Holocene at depths of 10-15 cm. At the Cocos sites, increases in authigenic U (up to 12 ppm) occur lower in the sediment column (25-30 cm) during the late glacial. The decrease

  19. Interfaces entre a política habitacional e o Plano Diretor Participativo na metrópole Fortaleza-CE / Relations between the housing policy and participatory master plan in metropolis Fortaleza, Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Elizete de Oliveira Santos

    2013-12-01

    Full Text Available The housing question appears as essential element to understanding the production, consumption and appropriation processes of urban space, illuminating the relationship between sociospatial segregation and real state speculation that govern the brazilians' cities structuring. This paper proposes to discuss the relations between the Participatory Master Plan of Fortaleza (PDPFor and the Municipal Housing Policy (PHIS, aiming to contribute to the reflection of the importance of the urban and housing policies integration. The text is divided into three parts: the first discusses the context of the emergence of the master plans "new generation" in Brazil; the second reconstructs the preparation process of the PDPFor and PHIS; and the third proposes a questioning about the dialogue between the urban and housing political, based on the analysis of the content of PHIS and housing policy chapter in PDPFor.

  20. Variations of total electron content in the equatorial anomaly region in Thailand

    Science.gov (United States)

    Chowdhary, V. Rajesh; Tripathi, N. K.; Arunpold, Sanit; Raju, Durairaju Kumaran

    2015-01-01

    This paper presents the first results of total electron content (TEC), derived by analyzing dual frequency Novatel GSV4004 GPS receiver's data which were installed by the SCINDA project, located at the Asian Institute of Technology, Bangkok (AITB, 14.079N, 100.612E) and Chiang Mai University, Chiang Mai (CHGM, 18.480N, 98.570E) with magnetic latitude of 4.13°N and 8.61°N respectively in Thailand, for the year 2011. These two stations are separated by 657 km in the equatorial anomaly region. The highest TEC values occurred from 1500 to 1900 LT throughout the study period. The diurnal, monthly and seasonal GPS-TEC have been plotted and analyzed. The diurnal peaks in GPS-TEC is observed to be maximum during equinoctial months (March, April, September and October) and minimum in solstice months (January, February, June, July and December). These high TEC values have been attributed to the solar extreme ultra-violet ionization coupled with the upward vertical E × B drift. A comparison of both station's TEC has been carried out and found that CHGM station experiences higher values of TEC than AITB station, due to formation of ionization crest over the CHGM station. Also, TEC values have shown increasing trend due to approaching solar maximum. These results from both stations were also compared with the TEC derived from the International Reference Ionosphere's (IRI) recently released, IRI-2012 model. Results have shown positive correlation with IRI-2012 model. Although, IRI-model does not show any response to geomagnetic activity, the IRI model normally remains smooth and underestimates TEC during a storm.

  1. Nonlinear bounce resonances between magnetosonic waves and equatorially mirroring electrons

    Science.gov (United States)

    Chen, Lunjin; Maldonado, Armando; Bortnik, Jacob; Thorne, Richard M.; Li, Jinxing; Dai, Lei; Zhan, Xiaoya

    2015-08-01

    Equatorially mirroring energetic electrons pose an interesting scientific problem, since they generally cannot resonate with any known plasma waves and hence cannot be scattered down to lower pitch angles. Observationally it is well known that the flux of these equatorial particles does not simply continue to build up indefinitely, and so a mechanism must necessarily exist that transports these particles from an equatorial pitch angle of 90° down to lower values. However, this mechanism has not been uniquely identified yet. Here we investigate the mechanism of bounce resonance with equatorial noise (or fast magnetosonic waves). A test particle simulation is used to examine the effects of monochromatic magnetosonic waves on the equatorially mirroring energetic electrons, with a special interest in characterizing the effectiveness of bounce resonances. Our analysis shows that bounce resonances can occur at the first three harmonics of the bounce frequency (nωb, n = 1, 2, and 3) and can effectively reduce the equatorial pitch angle to values where resonant scattering by whistler mode waves becomes possible. We demonstrate that the nature of bounce resonance is nonlinear, and we propose a nonlinear oscillation model for characterizing bounce resonances using two key parameters, effective wave amplitude à and normalized wave number k~z. The threshold for higher harmonic resonance is more strict, favoring higher à and k~z, and the change in equatorial pitch angle is strongly controlled by k~z. We also investigate the dependence of bounce resonance effects on various physical parameters, including wave amplitude, frequency, wave normal angle and initial phase, plasma density, and electron energy. It is found that the effect of bounce resonance is sensitive to the wave normal angle. We suggest that the bounce resonant interaction might lead to an observed pitch angle distribution with a minimum at 90°.

  2. Equatorial plasma bubbles in the ionosphere over Eritrea: occurrence and drift speed

    Directory of Open Access Journals (Sweden)

    R. H. Wiens

    2006-07-01

    Full Text Available An all-sky imager was installed in Asmara, Eritrea (15.4° N, 38.9° E, 7° N dip and used to monitor the OI 630-nm nightglow. Nine months of data were studied between September 2001 and May 2002, a time including the recent maximum in the solar activity cycle. Equatorial plasma bubbles (EPBs were recorded on 63% of nights with adequate viewing conditions. The station location within view of the equatorial ionization anomaly and with a magnetic declination near zero makes it an excellent test case for comparison with satellite studies of the seasonal variation of EPBs with longitude. The imager was accompanied by two Cornell GPS scintillation monitors, and the amplitude scintillation data are compared to the all-sky data. GPS scintillations indicate the beginning of EPBs, but die out sooner in the post-midnight period than the larger scale EPBs. Both phenomena exhibit clear occurrence maxima around the equinoxes. Ionospheric zonal drift speeds have been deduced from EPB and GPS scintillation pattern movement. Average near-midnight EPB drift speeds are between 100 and 120 m/s most months, with the GPS scintillation speeds being about the same. A winter drift speed maximum is evident in both EPB and GPS scintillation monthly means.

  3. REESTRUTURAÇÃO PRODUTIVA E RECONFIGURAÇÃO DA ÁREA CENTRAL DE FORTALEZA

    Directory of Open Access Journals (Sweden)

    José Borzacchiello da Silva

    2015-01-01

    Full Text Available The text discusses the metropolitan theme from the perspective of productive restructuring, especially the spatial transformations and the reconfiguration of the central area of Fortaleza. The focus is placed upon the comprehension of the social-spatial processes in their configuration with fragments, residues and new centralities, which testify to the process of production of the city in the light of property restructuring as a strategy for the reproduction of capital. The hegemony of financial capital and of the national and transnational construction companies reinforces mechanisms of social-spatial reproduction altering the urban structure and the expansion of the urban sprawl. This text confirms the significance and importance of the condominiums, walled properties and shopping malls which alter the price of urban land and modify, above all, the use of the soil.

  4. ANÁLISE DAS PRECIPITAÇÕES DIÁRIAS INTENSAS E IMPACTOS GERADOS EM FORTALEZA, CE

    Directory of Open Access Journals (Sweden)

    Maria Elisa Zanella

    2009-08-01

    Full Text Available The article deals with environmental problems arising from urban extreme rainfall events. The impacts are analyzed from the perspective of Monteiro’s (1976, 2003 Sistema Clima Urbano – subsistema hidrometeorico (Urban Climate System-subsystem Hydro meteoric. This model identifies the occurrence of daily rainfall totals greater than or equal to 60 mm, in the municipalities of Fortaleza, Maranguape and Pacatuba. The results show a significant number of rainfall events concentrated in the series studied; show also impacts such as flooding in areas of risk, deaths, traffic jams, loss of trees, structural collapse of homes, widespread leaks, lack of water, electricity and telephone, among others. It was found that the impacts are the consequence of occupation of the areas subject to flooding, and of the lack of infrastructure of the municipality.

  5. Knowledge of pharmacists about breastfeeding: a study in commercial pharmacies of Fortaleza – Ceará - Brazil

    Directory of Open Access Journals (Sweden)

    Luzia Izabel Mesquita Moreira da Silva

    2012-12-01

    Full Text Available Objective: To evaluate the knowledge of pharmacists who work in commercial pharmacies in Fortaleza, Ceará, Brazil, about breastfeeding. Methods: This was an observational, descriptive and transversal study. We used a questionnaire approaching the profile of pharmacists and general knowledge about breastfeeding and Brazilian Standard for Marketing of Food for Infants and Young Child, teats, dummies and Bottles (BSMFI. Data collection occurred from January to March 2011. Through drawing, we selected 82 commercial pharmacies, corresponding to 15.5% of all pharmacies in Fortaleza, when held up contact with their pharmacists. The questionnaire was administered to 67 pharmacists. The results were statistically analyzed using the Epi Info v. And v 3.5.1 SigmaPlot. 10.0. Results: Among the participants, 72% (n = 48 were female, 35.8% (n = 24 are formed over ten years, 49.3% (n = 33 working in pharmacy business for less than five years, and 52.2% (n = 35 engaged in professional activity at other establishments. The level of knowledge was rated as fair to 71.7% (n = 48 of respondents; insufficient to 17.9% (n = 12 and good for 10.4% (n = 07. This low performance, not reaching the maximum score, was associated with exercise time in the profession, noting that trained professionals for more than ten years had lower knowledge. Conclusion: Respondents recognize the importance of breastfeeding for both the baby’s health as for the mother. However, they lack knowledge of relevant information concerning the correct management of breastfeeding, especially among those who graduated earlier.

  6. Seasonal influence of ENSO on the Atlantic ITCZ and equatorial South America

    Science.gov (United States)

    Münnich, M.; Neelin, J. D.

    2005-11-01

    In late boreal spring, especially May, a strong relationship exists in observations among precipitation anomalies over equatorial South America and the Atlantic intertropical convergence zone (ITCZ), and eastern equatorial Pacific and central equatorial Atlantic sea surface temperature anomalies (SSTA). A chain of correlations of equatorial Pacific SSTA, western equatorial Atlantic wind stress (WEA), equatorial Atlantic SSTA, sea surface height, and precipitation supports a causal chain in which El Niño/Southern Oscillation (ENSO) induces WEA stress anomalies, which in turn affect Atlantic equatorial ocean dynamics. These correlations show strong seasonality, apparently arising within the atmospheric links of the chain. This pathway and the influence of equatorial Atlantic SSTA on South American rainfall in May appear independent of that of the northern tropical Atlantic. Brazil's Nordeste is affected by the northern tropical Atlantic. The equatorial influence lies further to the north over the eastern Amazon and the Guiana Highlands.

  7. Power stations

    International Nuclear Information System (INIS)

    Cawte, H.; Philpott, E.F.

    1980-01-01

    The object is to provide a method of operating a dual purpose power station so that the steam supply system is operated at a high load factor. The available steam not required for electricity generation is used to provide process heat and the new feature is that the process plant capacity is determined to make the most economic use of the steam supply system, and not to match the passout capacity of the turbine of the turbogenerator. The product of the process plant should, therefore, be capable of being stored. A dual-purpose power station with a nuclear-powered steam source, turbogenerating means connected to the steam source and steam-powered process plant susceptible to wide variation in its rate of operation is described. (U.K.)

  8. The growth and decay of equatorial backscatter plumes

    Science.gov (United States)

    Tsunoda, R. T.

    1980-02-01

    During the past three years, a series of rocket experiments from the Kwajalein Atoll, Marshall Islands, were conducted to investigate the character of intense, scintillation-producing irregularities that occur in the nighttime equatorial ionosphere. Because the source mechanism of equatorial irregularities, believed to be the Rayleigh-Taylor instability, is analogous to that which generates plasma-density striations in a nuclear-induced environment, there is considerable interest in the underlying physics that controls the characteristics of these irregularities. A primary objective of ALTAIR investigations of equatorial irregularities is to seek an understanding of the underlying physics by establishing the relationship between meter-scale irregularities (detected by ALTAIR), and the large-scale plasma-density depletions (or 'bubbles') that contain the kilometer-scale, scintillation-producing irregularities. We describe the time evolution of backscatter 'plumes' produced by one meter equatorial field-aligned irregularities. Using ALTAIR, a fully steerable backscatter radar, to repeatedly map selected plumes, we characterize the dynamic behavior of plumes in terms of growth and a decay phase. Most of the observed characteristics are found to be consistent with equatorial-irregularity generation predicted by current theories of Rayleigh-Taylor and gradient-drift instabilities. However, other characteristics have been found that suggest key roles played by the eastward neutral wind and by altitude-modulation of the bottomside F layer in establishing the initial conditions for plume growth.

  9. Effect of geomagnetic storm conditions on the equatorial ionization anomaly and equatorial temperature anomaly

    Science.gov (United States)

    Bharti, Gaurav; Bag, T.; Sunil Krishna, M. V.

    2018-03-01

    The effect of the geomagnetic storm on the equatorial ionization anomaly (EIA) and equatorial temperature anomaly (ETA) has been studied using the atomic oxygen dayglow emissions at 577.7 nm (OI 557.7 nm) and 732.0 nm (OII 732.0 nm). For the purpose of this study, four intense geomagnetic storms during the ascending phase of solar cycle 24 have been considered. This study is primarily based on the results obtained using photochemical models with necessary inputs from theoretical studies and experimental observations. The latest reaction rate coefficients, quantum yields and the corresponding cross-sections have also been incorporated in these models. The volume emission rate of airglow emissions has been calculated using the neutral densities from NRLMSISE-00 and charged densities from IRI-2012 model. The modeled volume emission rate (VER) for OI 557.7 nm shows a positive correlation with the Dst index at 150 km and negative correlation with Dst at 250 and 280 km altitudes. Latitudinal profile of the greenline emission rate at different altitudes show a distinct behaviour similar to what has been observed in EIA with crests on either sides of the equator. The EIA crests are found to show poleward movement in the higher altitude regions. The volume emission rate of 732.0 nm emission shows a strong enhancement during the main phase of the storm. The changes observed in the airglow emission rates are explained with the help of variations induced in neutral densities and parameters related to EIA and ETA. The latitudinal variation of 732.0 nm emission rate is correlated to the variability in EIA during the storm period.

  10. Earthquake Magnitude Relationships for the Saint Peter and Saint Paul Archipelago, Equatorial Atlantic

    Science.gov (United States)

    de Melo, Guilherme W. S.; do Nascimento, Aderson F.

    2018-03-01

    We have investigated several relationships between ML, M(NEIC) and Mw for the earthquakes locally recorded in the Saint Peter and Saint Paul Archipelago (SPSPA), Equatorial Atlantic. Because we only have one station in the area, we could not derive attenuation relations for events recorded at different distances at different stations. Our approach was then to compare our ML estimates with magnitudes reported by NEIC. This approach produced acceptable results particularly for epicentral distance smaller than 100 km. For distances greater that 100 km, there is a systematic increase in the residuals probable due to the lack of station correction and our inability to accurately estimate Q. We also investigate the Mw—M(NEIC) relationship. We find that Mw estimates using S-wave produce smaller residuals when compared with both M(NEIC). Finally, we also investigate the ML—Mw relationship and observe that given the data set we have, the 1:1 holds. We believe that the use of the present methodologies provide consistent magnitude estimates between all the magnitudes investigated that could be used to better assess seismic hazard in the region.

  11. Space Weather Research in the Equatorial Region: A Philosophical Reinforcement

    Science.gov (United States)

    Chukwuma, Victor; Odunaike, Rasaki; Laoye, John

    Investigations using radio waves reflected from the ionosphere, at high-and mid-latitudes indicate that ionospheric absorption can strongly increase following geomagnetic storms; which appears to suggest some definite relationship between ionospheric radio wave absorption and geomagnetic storms at these latitudes. However, corresponding earlier studies in the equatorial region did not appear to show any explicit relationship between ionospheric radio wave absorption and geomagnetic storm activity. This position appeared acceptable to the existing scientific paradigm, until in an act of paradigm shift, by a change of storm selection criteria, some more recent space weather investigations in the low latitudes showed that ionospheric radio wave absorption in the equatorial region clearly increases after intense storms. Given that these results in the equatorial region stood against the earlier results, this paper presently attempts to highlight their philosophical underpinning and posit that they constitute a scientific statement.

  12. Occurrence of Equatorial Plasma Bubbles during Intense Magnetic Storms

    Directory of Open Access Journals (Sweden)

    Chao-Song Huang

    2011-01-01

    Full Text Available An important issue in low-latitude ionospheric space weather is how magnetic storms affect the generation of equatorial plasma bubbles. In this study, we present the measurements of the ion density and velocity in the evening equatorial ionosphere by the Defense Meteorological Satellite Program (DMSP satellites during 22 intense magnetic storms. The DMSP measurements show that deep ion density depletions (plasma bubbles are generated after the interplanetary magnetic field (IMF turns southward. The time delay between the IMF southward turning and the first DMSP detection of plasma depletions decreases with the minimum value of the IMF Bz, the maximum value of the interplanetary electric field (IEF Ey, and the magnitude of the Dst index. The results of this study provide strong evidence that penetration electric field associated with southward IMF during the main phase of magnetic storms increases the generation of equatorial plasma bubbles in the evening sector.

  13. Molecular characterization of Cryptosporidium isolates from humans in Equatorial Guinea.

    Science.gov (United States)

    Blanco, María Alejandra; Iborra, Asunción; Vargas, Antonio; Nsie, Eugenia; Mbá, Luciano; Fuentes, Isabel

    2009-12-01

    The aim of the study was to perform a molecular characterization of clinical isolates of Cryptosporidium species from Equatorial Guinea. Standard laboratory methods were used to identify 35 cryptosporidiosis cases among 185 patients. PCR-RFLP successfully identified 34 Cryptosporidium species from these 35 cases, comprising C. parvum (52.9%), C. hominis (44.1%) and C. meleagridis (2.9%); over 90% of the species were isolated from HIV-positive patients. This is the first report of the molecular characterization of Cryptosporidium species isolated from humans in Equatorial Guinea and shows that zoonotic and anthroponotic transmission is present in this country.

  14. Longitudinal Variation and Waves in Jupiter's South Equatorial Wind Jet

    Science.gov (United States)

    Simon-Miller, A. A.; Rogers, John H.; Gierasch, Peter J.; Choi, David; Allison, Michael; Adamoli, Gianluigi; Mettig, Hans-Joerg

    2012-01-01

    We have conducted a detailed study of the cloud features in the strong southern equatorial wind jet near 7.5 S planetographic latitude. To understand the apparent variations in average zonal wind jet velocity at this latitude [e.g.. 1,2,3], we have searched for variations iIi both feature latitude and velocity with longitude and time. In particular, we focused on the repetitive chevron-shaped dark spots visible on most dates and the more transient large anticyclonic system known as the South Equatorial Disturbance (SED). These small dark spots are interpreted as cloud holes, and are often used as material tracers of the wind field.

  15. Instability of equatorial protons in Jupiter's mid-magnetosphere

    International Nuclear Information System (INIS)

    Northrop, T.G.; Schardt, A.W.

    1980-01-01

    Two different models for the distribution function are fit to the Jovian protons seen by Pioneer 10 inbound. The models reproduce the observed energy and angular distributions. These models are then used to assess the collisionless mirror instability. Because of the pancake proton angular distributions in the equatorial ring current region, the ring current particle population appears to be mirror unstable at times, with instability growth rates of approx.10 min. Such a time is consistent with observed proton flux autocorrelation times. An instability such as this (there are other candidates) may be responsible for the previously established proton flux flowing parallel to the magnetic field away from the equatorial region

  16. Diagnóstico da geração e da composição dos RCD de Fortaleza/CE Generation and composition diagnosis of C&D waste of Fortaleza/CE

    Directory of Open Access Journals (Sweden)

    Maria Elane Dias de Oliveira

    2011-09-01

    Full Text Available Este trabalho objetivou apresentar os resultados de um diagnóstico anual da geração e da composição dos resíduos de construção e demolição de Fortaleza. Durante 12 meses, foram colhidas informações das empresas coletoras e da prefeitura, tais como a quantidade e o preço do metro cúbico do entulho coletado e o destino dado a ele. Foram ainda coletadas amostras de resíduos de construção e demolição nos locais de descarte licenciados pela prefeitura. Os resultados apontam que os locais licenciados recebem em média 702 toneladas.dia-1, sendo que a composição desses resíduos de construção e demolição é, em média, de 65% de restos de argamassa, concreto e material cerâmico. Constatou-se também que grande parte desse tipo de resíduo é descartado ilegalmente, sendo que os dois principais aterros irregulares somam uma área aproximada de 26 hectares. Estima-se que esse sistema movimenta R$ 4,5 milhões anualmente e que quase metade desse montante é aportado somente pela Prefeitura Municipal.This article aimed to present the results of an annual diagnosis of generation and composition of Fortaleza’s construction and demolition waste. During 12 months CDW collection companies’ and the city hall’ information were researched, such as the amount and the price of the cubic meter of the collected wastes and the destiny given to them. Samples of construction and demolition waste were either collected at the licensed disposal places. The results point that licensed places receive 702 tons.day-1, on average, and the composition of this construction and demolition waste is made, on average, by 65% of mortar, concrete and ceramic material. It was also verified that great part of this waste is discarded illegally, and the two main irregular disposal sites have an approximate area of 26 hectares. It is estimated that system costs approximately R$4.5 million annually and almost half of this amount is paid only by

  17. Etiology of canine otitis media and antimicrobial susceptibility of coagulase-positive Staphylococci in Fortaleza city, Brazil Etiologia da otite média canina e susceptibilidade a antimicrobianos de Staphylococcus coagulase-positiva em Fortaleza, Brasil

    Directory of Open Access Journals (Sweden)

    Lis Christina de Oliveira

    2006-06-01

    Full Text Available This study evaluated the middle ear microbiota and antimicrobial susceptibility patterns from strains isolated from dogs with otitis media. A total of 62 dogs obtained from Zoonoses Control Center of Fortaleza City Ceará State / Brazil were studied over a 10-month period (August/2003 to June/2004. Of the total, 46.8% (n=30 of the animals were positive for otitis media and the infection was monomicrobial in 76.6% of them. The most frequent isolated agents were coagulase-positive Staphylococci (CPS-55% and Pseudomonas sp (10%. For S. intermedius (n=13 and S. aureus subsp aureus (n=9, respectively, the greater resistance rates were observed using penicillin G (30.76% and 44.44%, ampicillin (7.69% and 44.44%, erythromycin (23.07% and 44.44%, clindamycin (23.07% and 44.44% and thrimethropim/sulfamethoxazol (15.38% and 33.33%.O presente trabalho avaliou a microbiota do ouvido médio e os perfis de susceptibilidade a antimicrobianos de cepas isoladas de cães com otite média. Um total de 62 cães obtidos no Centro de Controle de Zoonoses de Fortaleza Ceará / Brasil foram estudados no período de 10 meses (agosto/2003 a junho/2004. Do total de animais, 46.8% (n=30 foram positivos para otite media e a infecção envolvida era monomicrobiana em 76,6% dos casos. Os agentes isolados com maior frequência foram Staphylococcus coagulase-positiva (CPS-55% e Pseudomonas sp (10%. Considerando-se S. intermedius (n=13 e S. aureus subsp aureus (n=9, respectivamente, as mais elevadas taxas resistência foram observadas frente a: penicilina G (30,76% e 44,44%, ampicilina (7,69% e 44,44%, eritromicina (23,07% e 44,44%, clindamicina (23,07% e 44,44% e trimetropim/sulfametoxazol (15,38% e 33,33%.

  18. Comparação temporal das prevalências de asma e rinite em adolescentes em Fortaleza, Brasil Prevalences of asthma and rhinitis among adolescents in the city of Fortaleza, Brazil: temporal changes

    Directory of Open Access Journals (Sweden)

    Maria de Fátima Gomes de Luna

    2013-04-01

    Full Text Available OBJETIVO: Descrever as prevalências de asma e rinite em adolescentes de 13-14 anos de idade em Fortaleza (CE em 2010 e compará-las com as prevalências obtidas em um inquérito em 2006-2007. MÉTODOS: Estudo transversal envolvendo uma amostragem probabilística de 3.015 e 3.020 adolescentes, respectivamente, em 2006-2007 e 2010, utilizando o protocolo do International Study of Asthma and Allergies in Childhood. RESULTADOS: Na comparação entre os dois períodos, não houve diferenças significativas em relação a sibilos cumulativos, asma ativa, quatro ou mais crises de sibilos no último ano, prejuízo do sono por sibilos > 1 noite/semana e crises limitando a fala. Em 2010, houve um aumento significativo na prevalência de sibilos após exercícios, tosse seca noturna e asma diagnosticada (p OBJECTIVE: To describe the prevalences of asthma and rhinitis in adolescents (13-14 years of age in the city of Fortaleza, Brazil, in 2010, comparing the results with those obtained in a prevalence survey conducted in 2006-2007. METHODS: This was a cross-sectional study involving probabilistic samples of 3,015 and 3,020 adolescents in surveys conducted in 2006-2007 and 2010, respectively. The International Study of Asthma and Allergies in Childhood protocol was used on both occasions. RESULTS: Comparing the two periods, there were no significant differences regarding cumulative wheezing, active asthma, four or more wheezing attacks within the last year, sleep disturbed by wheezing more than one night per week, and speech-limiting wheezing. The prevalences of exercise-induced wheezing, dry cough at night, and physician-diagnosed asthma were significantly higher in 2010 than in the 20062007 period (p < 0.01 for all. The prevalence of physician-diagnosed rhinitis was significantly lower in 2010 (p = 0.01, whereas there were no significant differences between the two periods regarding cumulative rhinitis, current rhinitis, and rhinoconjunctivitis. In both

  19. Variability study of foF2 for an equatorial station

    International Nuclear Information System (INIS)

    Adeniyi, J.O.; Radicella, S.M.; Adimula, I.A.

    1994-08-01

    The deviation of hourly values of foF 2 from the monthly median values was used to study the variability of foF 2 . The study was done for the period of high and low solar activity. Generally the range of variation of the deviation is not dependent on solar activity. There is a tendency for positive deviation to occur on magnetically disturbed days and for negative deviation to occur on quiet days. The magnitude of the deviation does not depend on whether the day is disturbed or quiet. The correlation between Ap index and deviation of foF 2 from the median value is generally poor. THe range of deviation at night is usually higher than that of the daytime for the period of high solar activity. Some seasonal effect were also observed on the deviation. (author). 4 refs, 5 figs, 3 tabs

  20. Upper ocean circulation modulation by phytoplankton concentration in the Equatorial Pacific and the Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Nakamoto, S.; PrasannaKumar, S.; Oberhuber, J.M.; Sammarco, P.; Muneyama, K.; Sato, T.; AjoyKumar, A.; Frouin, R.

    gradient in the upper ocean. This strengthens the geostrophically balanced westward currents in both side of the equatorial wave-guide (within 5 degree bands). Once these currents reach the western Pacific coast, they feed the Equatorial undercurrent (EUC...

  1. Ocean dynamics, not dust, have controlled equatorial Pacific productivity over the past 500,000 years

    OpenAIRE

    Winckler, Gisela; Anderson, Robert F.; Jaccard, Samuel L.; Marcantonio, Franco

    2016-01-01

    Biological productivity in the equatorial Pacific is relatively high compared with other low latitude regimes especially east of the dateline where divergence driven by the trade winds brings nutrient rich waters of the Equatorial Undercurrent to the surface. The equatorial Pacific is one of the three principal high nutrient low chlorophyll ocean regimes where biological utilization of nitrate and phosphate is limited in part by the availability of iron. Throughout most of the equatorial Paci...

  2. Iron sources and pathways into the Pacific Equatorial Undercurrent

    NARCIS (Netherlands)

    Qin, Xuerong; Menviel, Laurie; Sen Gupta, Alex; van Sebille, Erik

    2016-01-01

    Using a novel observationally constrained Lagrangian iron model forced by outputs from an eddy-resolving biogeochemical ocean model, we examine the sensitivity of the Equatorial Undercurrent (EUC) iron distribution to EUC source region iron concentrations. We find that elevated iron concentrations

  3. Equatorial electrojet in the Indian region during the geomagnetic ...

    Indian Academy of Sciences (India)

    1998-11-14

    Nov 14, 1998 ... In the recovery phase of the storm, the electric field due to shielding layer penetrates to equatorial latitudes as an overshielding electric field with opposite polarity, westward during day- side and eastward during night side (Kelley et al. 1979). In addition to the prompt penetration elec- tric fields, there are ...

  4. Climate regulation of fire emissions and deforestation in equatorial Asia

    NARCIS (Netherlands)

    van der Werf, G. R.; Dempewolf, J.; Trigg, S. N.; Randerson, J. T.; Kasibhatla, P. S.; Giglio, L.; Murdiyarso, D.; Peters, W.; Morton, D. C.; Collatz, G. J.; Dolman, A. J.; Defries, R. S.

    2008-01-01

    Drainage of peatlands and deforestation have led to large-scale fires in equatorial Asia, affecting regional air quality and global concentrations of greenhouse gases. Here we used several sources of satellite data with biogeochemical and atmospheric modeling to better understand and constrain fire

  5. Backscatter measurements of 11-cm equatorial spread-F irregularities

    International Nuclear Information System (INIS)

    Tsunoda, R.T.

    1980-01-01

    In the equatorial F-region ionosphere, a turbulent cascade process has been found to exist that extends from irregularity spatial wavelengths longer than tens of kilometers down to wavelengths as short as 36 cm. To investigate the small-scale regime of wavelengths less than 36 cm, an equatorial radar experiment was conducted using a frequency of 1320 MHz that corresponds to an irregularity wavelength of 11 cm. The first observations of radar backscatter from 11-cm field-aligned irregularities (FAI) are described. These measurements extend the spatial wavelength regime of F-region FAI to lengths that approach both electron gyroradius and the Debye length. Agreement of these results with the theory of high-frequency drift waves suggests that these observations may be unique to the equatorial ionosphere. That is, the requirement of low electron densities for which the theroy calls may preclude the existence of 11-cm FAI elsewhere in the F-region ionosphere, except in equatorial plasma bubbles

  6. Characterisation of tectonic lineaments in the Central Equatorial ...

    African Journals Online (AJOL)

    Characterisation of tectonic lineaments in the Central Equatorial Atlantic region of Africa using Bouguer anomaly gravity data. ... Ife Journal of Science ... 3-D standard Euler deconvolution analysis was carried out on Bouguer anomaly gravity data for configuration definition and approximate depth estimate of tectonic ...

  7. Planktonic foraminifera from core tops of western equatorial Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Naidu, P.D.; Guptha, M.V.S.

    distributional pattern showing upward trend in its abundance from 38 per cent at 21 degrees S latitude to 0.8 per cent at 6 degrees N latitude. Sub-tropical fauna is sparsely distributed in the Equatorial Indian Ocean. Based on these studies it is interpreted...

  8. equatorial electrojet strength in the african sector during high

    African Journals Online (AJOL)

    Preferred Customer

    shown to be consistent with the earlier similar work carried out for the American and ... reference to the quiet day night time level of H, ... February and July, and shifts equator ward to 27°N ... effect of the equatorial electrojet along this line is.

  9. Radar observation of the equatorial counter-electrojet

    International Nuclear Information System (INIS)

    Hanuise, C.; Crochet, M.; Gouin, P.; Ogubazghi, Ghebrebrhan

    1979-01-01

    Electron drift velocity in the equatorial electrojet has been measured for a few years by coherent radar techniques in Africa. For the first time such measurements were performed during a strong reversal of the ionospheric current dubbed 'counter-electrojet'. These observations agree with the theories of the plasma instabilities at the origin of the electron density irregularities giving the radar echoes

  10. APRENDIZADOS E ORIENTAÇÃO POR ERROS EM EMPREENDEDORES DO RAMO DE RESTAURANTES EM FORTALEZA-CE

    Directory of Open Access Journals (Sweden)

    Denis Pontes Coelho

    2016-07-01

    Full Text Available Partindo de estudos sobre sucesso e fracasso empresarial o tema perfil empreendedor toma seu lugar de importância, mais especificamente sobre a capacidade de aprender com os próprios erros. Considerando o fator Aprendizagem por erros como um fator pouco estudado academicamente e então de pouca importância no perfil do empreendedor, a pesquisa se propõe a responder o problema de partida; De quais aprendizados por erros são relatados pelos empresários, assim como sua postura em relação aos erros. De cunho qualitativo e exploratório, a pesquisa se concentrou em investigar os empreendedores do ramo de restaurantes da zona gastronômica de Fortaleza, no que se refere aos seus aprendizados e se conseguem aprender com os erros. Teve como base a teoria de M. Frese de Orientação por Erros e da Aprendizagem Significativa de D. Ausubel. Os resultados mostraram que eles têm uma postura de Orientação por erros e de aprendizados relacionados nas áreas de Gestão de Pessoas e atendimento ao cliente. Palavras-chave: Aprendizados; orientação por erros; perfil do Empreendedor; sucesso empresarial.   Based on studies of success and business failure the entrepreneurial subject takes its place of importance, specifically on the ability to learn from mistakes. Considering the learning factor by errors as academically understudied factor and then of little importance in the entrepreneurial profile, the research aims to answer the starting problem: which learnings from errors are reported by the entrepreneurs as well as their attitude towards mistakes. Qualitative and exploratory nature, the research focused on investigating the entrepreneurs of the restaurant business at the gastronomic area of Fortaleza, in regard to their learning capacity and potential from mistakes. It was based on the theory of M. Frese about orientation after Errors and the Significant Learning by D. Ausubel. The results showed that they have a Guidance posture after mistakes

  11. Auditoria farmacêutica: estudo de caso em uma operadora de planos de saúde de Fortaleza (Brasil

    Directory of Open Access Journals (Sweden)

    Henry Pablo Lopes Campos e Reis

    2013-04-01

    Full Text Available O objetivo do estudo foi descrever a implantação, estruturação e desenvolvimento da prática de auditoria farmacêutica em uma operadora de planos de saúde de Fortaleza (OPS. Trata-se de um estudo descritivo do tipo estudo de caso, em que a unidade de análise foi uma OPS localizada em Fortaleza, capital do estado do Ceará (Brasil. Foram coletados e analisados dados qualitativos e quantitativos que corresponderam ao período de 2007 a 2010. Para a implantação da área de auditoria farmacêutica foi utilizada como primeira estratégia sua formalização na Diretoria de Recursos Médicos Hospitalares e na estrutura organizacional da OPS em janeiro de 2007. Com o reconhecimento do trabalho desenvolvido pela área, a equipe chegou em 2010 com dois farmacêuticos, dois assistentes de farmácia e cinco estagiários. O desenvolvimento da prática de auditoria farmacêutica resultou na exigência de pareceres técnicos para inclusão de medicamentos em tabela definida pela OPS e de solicitação para medicamentos de alto custo e de reserva terapêutica. A intervenção do farmacêutico, em seis meses de experiência, junto a pacientes em uso de antimicrobianos mostrou uma economia de R$ 279.153,80. A gestão de quimioterápicos resultou em uma economia total de R$ 2.502.278,31 para a OPS em 2009. Embora a auditoria farmacêutica envolva uma discussão recente, é preciso desde já, que aspectos relacionados à sua implantação, estruturação e desenvolvimento sejam apoiados, uma vez que essa prática ajuda na descrição e análise de elementos assistenciais e de gestão que envolve pacientes em tratamento farmacológico.

  12. An empirical model of ionospheric total electron content (TEC) near the crest of the equatorial ionization anomaly (EIA)

    Science.gov (United States)

    Hajra, Rajkumar; Chakraborty, Shyamal Kumar; Tsurutani, Bruce T.; DasGupta, Ashish; Echer, Ezequiel; Brum, Christiano G. M.; Gonzalez, Walter D.; Sobral, José Humberto Andrade

    2016-07-01

    We present a geomagnetic quiet time (Dst > -50 nT) empirical model of ionospheric total electron content (TEC) for the northern equatorial ionization anomaly (EIA) crest over Calcutta, India. The model is based on the 1980-1990 TEC measurements from the geostationary Engineering Test Satellite-2 (ETS-2) at the Haringhata (University of Calcutta, India: 22.58° N, 88.38° E geographic; 12.09° N, 160.46° E geomagnetic) ionospheric field station using the technique of Faraday rotation of plane polarized VHF (136.11 MHz) signals. The ground station is situated virtually underneath the northern EIA crest. The monthly mean TEC increases linearly with F10.7 solar ionizing flux, with a significantly high correlation coefficient (r = 0.89-0.99) between the two. For the same solar flux level, the TEC values are found to be significantly different between the descending and ascending phases of the solar cycle. This ionospheric hysteresis effect depends on the local time as well as on the solar flux level. On an annual scale, TEC exhibits semiannual variations with maximum TEC values occurring during the two equinoxes and minimum at summer solstice. The semiannual variation is strongest during local noon with a summer-to-equinox variability of ~50-100 TEC units. The diurnal pattern of TEC is characterized by a pre-sunrise (0400-0500 LT) minimum and near-noon (1300-1400 LT) maximum. Equatorial electrodynamics is dominated by the equatorial electrojet which in turn controls the daytime TEC variation and its maximum. We combine these long-term analyses to develop an empirical model of monthly mean TEC. The model is validated using both ETS-2 measurements and recent GNSS measurements. It is found that the present model efficiently estimates the TEC values within a 1-σ range from the observed mean values.

  13. An empirical model of ionospheric total electron content (TEC near the crest of the equatorial ionization anomaly (EIA

    Directory of Open Access Journals (Sweden)

    Hajra Rajkumar

    2016-01-01

    Full Text Available We present a geomagnetic quiet time (Dst > −50 nT empirical model of ionospheric total electron content (TEC for the northern equatorial ionization anomaly (EIA crest over Calcutta, India. The model is based on the 1980–1990 TEC measurements from the geostationary Engineering Test Satellite-2 (ETS-2 at the Haringhata (University of Calcutta, India: 22.58° N, 88.38° E geographic; 12.09° N, 160.46° E geomagnetic ionospheric field station using the technique of Faraday rotation of plane polarized VHF (136.11 MHz signals. The ground station is situated virtually underneath the northern EIA crest. The monthly mean TEC increases linearly with F10.7 solar ionizing flux, with a significantly high correlation coefficient (r = 0.89–0.99 between the two. For the same solar flux level, the TEC values are found to be significantly different between the descending and ascending phases of the solar cycle. This ionospheric hysteresis effect depends on the local time as well as on the solar flux level. On an annual scale, TEC exhibits semiannual variations with maximum TEC values occurring during the two equinoxes and minimum at summer solstice. The semiannual variation is strongest during local noon with a summer-to-equinox variability of ~50–100 TEC units. The diurnal pattern of TEC is characterized by a pre-sunrise (0400–0500 LT minimum and near-noon (1300–1400 LT maximum. Equatorial electrodynamics is dominated by the equatorial electrojet which in turn controls the daytime TEC variation and its maximum. We combine these long-term analyses to develop an empirical model of monthly mean TEC. The model is validated using both ETS-2 measurements and recent GNSS measurements. It is found that the present model efficiently estimates the TEC values within a 1-σ range from the observed mean values.

  14. Distribuição das mutações da β-talassemia em Fortaleza, Ceará Distribution of β-thalassemia mutations in Fortaleza, Ceará

    Directory of Open Access Journals (Sweden)

    Lilianne Brito da Silva Rocha

    2010-12-01

    Full Text Available INTRODUÇÃO: As mutações IVS-I-1, IVS-I-6 e CD 39 foram estudadas em 14 pacientes portadores de β-talassemia, da população de Fortaleza, capital do Ceará. OBJETIVO: Fornecer informações sobre a caracterização molecular dos pacientes β-talassêmicos de Fortaleza, contribuindo para traçar o perfil das mutações desta hemoglobinopatia na região Nordeste e no Brasil. MÉTODOS: A β-talassemia foi diagnosticada pelo estudo hematológico realizado no contador automático de células sanguíneas, com revisão de lâminas, pelo teste de resistência globular osmótica em NaCl a 0,36% e pela eletroforese em pH alcalino em fitas de acetato de celulose. O DNA foi isolado de leucócitos a partir de amostras de sangue total. A análise das mutações foi realizada por meio da técnica da reação em cadeia mediada pela polimerase alelo-específica (PCR-AE, sendo analisadas as mutações CD 39, IVSI-1, IVSI-6 e IVSI-110 seguindo-se o protocolo do Laboratório de Hemoglobinas e Genética das Doenças Hematológicas (LHGDH da Universidade Estadual Paulista (UNESP. RESULTADOS: A distribuição das mutações identificadas foi: IVS-I-1 (14,3%, IVS-I-6 (35,7% e CD 39 (21,4%. Os demais talassêmicos (28,6% não apresentaram nenhuma das mutações estudadas. A maior frequência da mutação IVS-I-6 está conforme o esperado, uma vez que estudos demonstram que esta mutação está mais presente na região Nordeste, assim como a mutação IVS-I-1 na região Sul e a IVSI-110 e CD39 na região Sudeste do país. CONCLUSÃO: Esses resultados demonstram o perfil das mutações da β-talassemia na região Nordeste, contribuindo, assim, para o estudo da distribuição destas mutações no Brasil.INTRODUCTION: IVS-I-1, IVS-I-6 and CD 39 mutations were studied in 14 patients with β-thalassemia from the population of Fortaleza, capital of Ceará. OBJECTIVE: To provide information on the molecular characterization of β-thalassemia patients from Fortaleza, aiding

  15. A comparative study on chaoticity of equatorial/low latitude ionosphere over Indian subcontinent during geomagnetically quiet and disturbed periods

    Directory of Open Access Journals (Sweden)

    K. Unnikrishnan

    2010-12-01

    Full Text Available In the present study, the latitudinal aspect of chaotic behaviour of ionosphere during quiet and storm periods are analyzed and compared by using GPS TEC time series measured at equatorial trough, crest and outside crest stations over Indian subcontinent, by employing the chaotic quantifiers like Lyapunov exponent (LE, correlation dimension (CD, entropy and nonlinear prediction error (NPE. It is observed that the values of LE are low for storm periods compared to those of quiet periods for all the stations considered here. The lowest value of LE is observed at the trough station, Agatti (2.38° N, Geomagnetically, and highest at crest station, Mumbai (10.09° N, Geomagnetically for both quiet and storm periods. The values of correlation dimension computed for TEC time series are in the range 2.23–2.74 for quiet period, which indicate that equatorial ionosphere may be described with three variables during quiet period. But the crest station Mumbai shows a higher value of CD (3.373 during storm time, which asserts that four variables are necessary to describe the system during storm period. The values of non linear prediction error (NPE are lower for Agatti (2.38° N, Geomagnetically and Jodhpur (18.3° N, Geomagnetically, during storm period, compared to those of quiet period, mainly because of the predominance of non linear aspects during storm periods The surrogate data test is carried out and on the basis of the significance of difference of the original data and surrogates for various aspects, the surrogate data test rejects the null hypothesis that the time series of TEC during storm and quiet times represent a linear stochastic process. It is also observed that using state space model, detrended TEC can be predicted, which reasonably reproduces the observed data. Based on the values of the above quantifiers, the features of chaotic behaviour of equatorial trough crest and outside the crest regions of ionosphere during geomagnetically

  16. Analyse des précipitations annuelles à la station de Yaoundé de ...

    African Journals Online (AJOL)

    Mots-clés: Yaoundé, précipitations, saisons, sécheresse, El Niño. Analysis of the annual rainfalls in the Yaounde station from 1895 to 2006. In the context of climate change, we propose for the Yaounde weather station, in the area of the classic equatorial climate, to study the behavior of interannual rainfalls. It follows a ...

  17. Importancia de la evaluación psicológica de las fortalezas en niños y adolescentes Adolescents and children strengths psychological assessment importance

    Directory of Open Access Journals (Sweden)

    Isabel María Mikulic

    2006-12-01

    Full Text Available El presente trabajo se propone introducir un área nueva a la evaluación psicológica de niños y adolescentes: el estudio de las fortalezas. En este estudio exploratoriodescriptivo se ha seleccionado una muestra intencional de 44 participantes cuyas edades oscilan entre los 10 y 18 años y que residen en la Ciudad y Provincia de Buenos Aires. Del análisis de las fortalezas correspondientes a la calidad de vida percibida por niños y adolescentes en coincidencia con las provenientes de sus recursos sociales y sucesos de vida positivos experimentados, es posible afirmar que tanto el contexto familiar como el escolar son proveedores del apoyo de "al menos una persona significativa". Contar con un "otro" que estimula y gratifica afectivamente ha sido considerado por los participantes como una fortaleza, tanto al evaluar el contexto familiar como el escolar. Se ha confirmado la utilidad de incluir al contexto en la evaluación psicológica infantil por ser el entorno familiar y escolar fuentes de fortalezas y factores protectores en los niños y adolescentes estudiados.Present study aims to introduce a new psychological assessment perspectiva when assessing children and adolescents: assessment of human strengths. This is an exploratory-descriptive study based on an intentional sample formed by 44 participants, aged between 10 and 18 years and residing in Buenos Aires (Capital and Province. There is a coincidence between strengths belonging to perceived quality of life and those referring to social resources and positive life events in children and adolescents; in both cases family and school context provide at least one supporting significant person. Attachment to someone who provides unconditional support is considered one of the most important strengths found. Utility of including context evaluation in children and adolescents assessment has been demonstrated as family and school contexts have proved to be important strengths sources.

  18. Knowledge about genetically modified food: a study with supermarket clients situated in noble area of Fortaleza city - doi:10.5020/18061230.2004.p72

    OpenAIRE

    Paola Gondim Calvasina; Cíntia Maria Torres Rocha Silva; Gilka de Albuquerque Forte Aguiar; Milena Rebouças Aguiar; Helena Alves de Carvalho Sampaio

    2012-01-01

    The transgenic foods had appeared as result of the scientific and technological advances of genetic engineering applied to agriculture, configuring themselves in a current quarrel and sufficient controversy, about how much the benefits and curses brought to the consumers and the proper environment. In this intention, this study has as objective to verify the level of knowledge of customers of a supermarket of the noble area of the city of Fortaleza, on the thematic of the transgenic. Question...

  19. A regência do verbo ir de movimento por falantes cultos de Fortaleza – CE: relação entre ensino e pesquisa

    OpenAIRE

    Pinheiro, Regina Cláudia

    2014-01-01

    This paper aims at describing and analyzing the use of linguistic variants of the verb valence to go, indicating displacement, used by educated speakers of the Portuguese language from Fortaleza - CE. Besides that, we will verify which factors influence this use, drawing a parallel between the research results and some textbook guidelines. For this, we searched for textbooks and analyzed researches about this issue. We are grounded on the theoretical and methodological assumptions of the Vari...

  20. Post-midnight occurrence of equatorial plasma bubbles

    Science.gov (United States)

    Ajith, K. K.; Otsuka, Yuichi; Yamamoto, Mamoru; Yokoyama, Tatsuhiro; Tulasiram, S.

    2016-07-01

    The equatorial plasma bubbles (EPBs)/equatorial spread F (ESF) irregularities are an important topic of space weather interest because of their impact on transionospheric radio communications, satellite-based navigation and augmentation systems. This local plasma depleted structures develop at the bottom side F layer through Rayleigh-Taylor instability and rapidly grow to topside ionosphere via polarization electric fields within them. The steep vertical gradients due to quick loss of bottom side ionization and rapid uplift of equatorial F layer via prereversal enhancement (PRE) of zonal electric field makes the post-sunset hours as the most preferred local time for the formation of EPBs. However, there is a different class of irregularities that occurs during the post-midnight hours of June solstice reported by the previous studies. The occurrence of these post-midnight EPBs maximize during the low solar activity periods. The growth characteristics and the responsible mechanism for the formation of these post-midnight EPBs are not yet understood. Using the rapid beam steering ability of 47 MHz Equatorial Atmosphere Radar (EAR) at Kototabang (0.2°S geographic latitude, 100.3°E geographic longitude, and 10.4°S geomagnetic latitude), Indonesia, the spatial and temporal evolution of equatorial plasma bubbles (EPBs) were examined to classify the evolutionary-type EPBs from those which formed elsewhere and drifted into the field of view of radar. The responsible mechanism for the genesis of summer time post-midnight EPBs were discussed in light of growth rate of Rayleigh-Taylor instability using SAMI2 model.

  1. Lagrangian mixed layer modeling of the western equatorial Pacific

    Science.gov (United States)

    Shinoda, Toshiaki; Lukas, Roger

    1995-01-01

    Processes that control the upper ocean thermohaline structure in the western equatorial Pacific are examined using a Lagrangian mixed layer model. The one-dimensional bulk mixed layer model of Garwood (1977) is integrated along the trajectories derived from a nonlinear 1 1/2 layer reduced gravity model forced with actual wind fields. The Global Precipitation Climatology Project (GPCP) data are used to estimate surface freshwater fluxes for the mixed layer model. The wind stress data which forced the 1 1/2 layer model are used for the mixed layer model. The model was run for the period 1987-1988. This simple model is able to simulate the isothermal layer below the mixed layer in the western Pacific warm pool and its variation. The subduction mechanism hypothesized by Lukas and Lindstrom (1991) is evident in the model results. During periods of strong South Equatorial Current, the warm and salty mixed layer waters in the central Pacific are subducted below the fresh shallow mixed layer in the western Pacific. However, this subduction mechanism is not evident when upwelling Rossby waves reach the western equatorial Pacific or when a prominent deepening of the mixed layer occurs in the western equatorial Pacific or when a prominent deepening of the mixed layer occurs in the western equatorial Pacific due to episodes of strong wind and light precipitation associated with the El Nino-Southern Oscillation. Comparison of the results between the Lagrangian mixed layer model and a locally forced Eulerian mixed layer model indicated that horizontal advection of salty waters from the central Pacific strongly affects the upper ocean salinity variation in the western Pacific, and that this advection is necessary to maintain the upper ocean thermohaline structure in this region.

  2. Avaliação do grau de dependência nas atividades de vida diária em idosos da cidade de Fortaleza - Ceará Evaluation of dependence degree in daily activities of life in elder of Fortaleza - Ceará Level of independence in activities of daily life in low-income elderly from Fortaleza - Ceará

    Directory of Open Access Journals (Sweden)

    Maria Josefina da Silva

    2006-06-01

    Full Text Available OBJETIVO: a finalidade deste estudo foi avaliar o grau de dependência de idosos de baixa renda para as Atividades de vida diária (AVDs. MÉTODOS: estudo transversal, junto a 385 idosos residentes em bairros periféricos da cidade de Fortaleza - CE, caracterizados como pessoas pobres, com baixa ou nenhuma escolaridade, do sexo feminino e viúvas. O instrumento consistiu de formulário contendo 11 AVDs com gradientes de dependência "sem restrição"(0, "com restrição - pouca (1 e muita (2" e "não consegue"(3. Cada AVD continha três variações de complexidade para sua realização. RESULTADOS: os resultados revelaram que as atividades mais comprometidas foram "alimentação e hidratação", "locomoção", "atividades realizadas na casa" em especial as consideradas pesadas, "lazer e recreação". CONCLUSÃO: conclui-se que há um forte comprometimento da qualidade de vida dos idosos frente às restrições identificadas e aos parcos recursos institucionais, comunitários e familiares que dispõem para compensar as dependênciasOBJETIVO: la finalidad de este estudio fue evaluar el grado de dependecia de ancianos de bajo recursos para las Actividades de vida diaria (AVDs. MÉTODO: se trata de un estudio tranversal, dessarrollado con 385 ancianos residentes en barrios periféricos de la ciudad de Fortaleza - CE, caracterizados como personas pobres, con baja o ninguna escolaridad, viudas, del sexo femenino. El instrumento consistió de un formulario que contenía 11 AVDs con grados de dependencia "sin restricción" (0, "con restricción - poca (1 y mucha (2" y "no consigue"(3. Cada AVD contenía tres variaciones de complejidad para su realización. RESULTADOS: los resultados revelaron que las actividades más comprometidas fueron "alimentación e hidratación", "locomoción", "actividades realizadas en la casa" en especial las consideradas pesadas, "Ocio y recreación". CONCLUSIÓN: se concluye que hay un fuerte compromiso de la calidad de vida

  3. Acesso ao serviço de emergência pelos usuários com crise hipertensiva em um hospital de Fortaleza, CE, Brasil Aceso al servicio de urgencia por clientes con crisis de presión alta en un hospital de Fortaleza, CE, Brasil Access to the emergency service by clients with hipertensive crisis in a hospital in Fortaleza, CE, Brazil

    Directory of Open Access Journals (Sweden)

    Ana Célia Caetano de Souza

    2009-08-01

    Full Text Available A crise hipertensiva é uma elevação abrupta e sintomática da pressão arterial com risco de deterioração aguda de órgãos-alvo. Embora na literatura a prevalência do agravo seja de 1%, os riscos de complicações e de morte associadas ao problema de saúde nos serviços de emergência têm revelado a necessidade de aprofundar questões relacionadas ao acesso ao serviço de saúde. Trata-se de uma pesquisa de natureza quantitativa, descritiva, realizada em um hospital público do município de Fortaleza, no período de abril a julho de 2006, com 118 pacientes. Os resultados demonstram que a população com crise hipertensiva tem procurado os serviços de saúde, principalmente os de emergência, a fim de obter atendimento. O estudo indica o acesso como um elemento essencial para satisfação das necessidades dos usuários que procuram os serviços de saúde, sendo o tempo de espera, a resolubilidade e o acolhimento parâmetros importantes na qualidade do atendimento.La crisis hipertensiva es una elevación abrupta y sintomática de la presión arterial con riesgo de deterioro agudo de órganos-blanco. Aunque en las publicaciones la prevalencia del agravamiento sea de 1%, los riesgos de complicaciones y de muerte asociadas al problema de salud en los servicios de emergencia han revelado la necesidad de profundizar en las cuestiones relacionadas al acceso al servicio de salud. Se trata de una investigación de naturaleza cuantitativa, descriptiva, realizada en un hospital público del municipio de Fortaleza, en el periodo de abril a julio de 2006, con 118 pacientes. Los resultados demuestran que la población con crisis hipertensiva ha buscado los servicios de salud, principalmente los de emergencia, para obtener atención. El estudio indica el acceso como un elemento esencial para la satisfacción de las necesidades de los usuarios que buscan los servicios de salud, siendo el tiempo de espera, la resolutividad y la acogida, los par

  4. Pressão arterial de crianças e adolescentes de uma escola pública de Fortaleza - Ceará Presión arterial de niños y adolescentes de una escuela pública de Fortaleza-Ceará Blood pressure of children and teenagers from a public school in Fortaleza-Ceará

    Directory of Open Access Journals (Sweden)

    Thelma Leite de Araujo

    2007-12-01

    Full Text Available OBJETIVO: O objetivo do estudo foi analisar a evolução dos valores da pressão arterial sistólica (PAS, da pressão arterial diastólica (PAD e das medidas antropométricas de crianças e adolescentes que apresentaram alteração da pressão arterial em uma primeira avaliação. MÉTODOS: Estudo longitudinal, realizado nos meses de outubro de 2004 a dezembro de 2005, em uma escola pública de Fortaleza, Ceará. Cento e cinqüenta e um indivíduos com idades entre seis e dezessete anos foram avaliados e acompanhados por um período de um ano. RESULTADOS: As variáveis idade, escolaridade, peso, altura, índice de massa corporal, perímetro da cintura, perímetro do quadril, circunferência do braço e prega subescapular estiveram correlacionadas positiva e significativamente com os valores da PAS e da PAD. Houve diferença de mediana entre as variáveis: sexo, grau de parentesco para hipertensão arterial, fumante passivo com a PAS e com a PAD. CONCLUSÃO: Observou-se que a PAS e a PAD das crianças e dos adolescentes diminuíram ao longo das avaliações.OBJETIVO: En este estudio se tuvo como objetivo analizar la evolución de los valores de la presión arterial sistólica (PAS, de la presión arterial diastólica (PAD y de las medidas antropométricas de niños y adolescentes que presentaron alteración de la presión arterial en una primera evaluación. MÉTODOS: Se trata de un estudio longitudinal, realizado en los meses de octubre del 2004 a diciembre del 2005, en una escuela pública de Fortaleza, Ceará. Ciento cincuenta y un individuos con edades entre seis y diecisiete años fueron evaluados y acompañados por el período de un año. RESULTADOS: Las variables edad, escolaridad, peso, altura, índice de masa corporal, perímetro de la cintura, perímetro de la cadera, circunferencia del brazo y pliegue subescapular estuvieron correlacionadas positiva y significativamente con los valores de la PAS y de la PAD. Hubo diferencia de mediana

  5. O perfil das puérperas adolescentes atendidas em uma maternidade de referência de Fortaleza-Ceará Perfil de las madres adolescentes atendidas en una maternidad de referencia en Fortaleza-Ceará The profile of the puerperal adolescents treated in a referenced maternity in Fortaleza-Ceará

    Directory of Open Access Journals (Sweden)

    Náira de Oliveira Caminha

    2012-09-01

    Full Text Available Objetivou-se caracterizar o perfil das puérperas adolescentes de uma maternidade de Fortaleza-CE. Estudo descritivo, transversal e quantitativo, realizado no Alojamento Conjunto da Maternidade Escola Assis Chateaubriand, no período de março a julho de 2009, com 200 adolescentes. Os dados foram obtidos por meio de entrevistas. A maioria apresentava idade entre 15 e 19 anos (91,0%, residia na capital (78,0%, vivia com o pai de seu filho (64,5%, tinha baixa escolaridade (55,5%, considerava-se parda (61,5% e dona-de-casa (53%. Quanto aos métodos anticonceptivos, 73,5% usaram algum método antes de engravidar, 65,5% desejaram a gravidez e 32,5% planejaram a gravidez. Durante a gravidez, 18,5% tiveram internação hospitalar e 82,5% não utilizavam drogas. Torna-se relevante a função do enfermeiro como educador em saúde para orientá-las e torná-las autônomas na promoção de sua saúde sexual.El objetivo de ese estudio fue caracterizar el perfil de las madres adolescentes atendidas en una maternidad de referencia en Fortaleza, Ceará. Estudio descriptivo, transversal y cuantitativo, llevado a cabo en el alojamiento conjunto de la Maternidade Escola Assis Chateaubriand, de marzo a julio de 2009, con 200 adolescentes. Los datos fueron obtenidos por medio de entrevistas. La mayoría tenía entre 15 y 19 años (91,0%, residía en la capital (78,0%, vivía con el padre de su hijo (64,5%, tenía bajo nivel de educación (55,5%, consideraba a sí misma como mixta (61,5% y era ama de casa (53%. Sobre los métodos anticonceptivos, el 73,5% utilizaron algún método antes del embarazo, el 65,5% deseaban embarazar y el 32,5% planearon el embarazo. Durante este periodo, el 18,5% fueron hospitalizados y el 82,5% no consumía drogas. Es importante el papel de la enfermera como educadora de salud para guiarlos y hacerles autónomas en la promoción de la salud sexual.This study aimed to characterize the profile of puerperal adolescents in a maternity ward

  6. Prática de atividade física por adolescentes de Fortaleza, CE, Brasil Práctica de actividad física por adolescentes de Fortaleza, CE, Brasil Physical activity practice by adolescents from Fortaleza, CE, Brazil

    Directory of Open Access Journals (Sweden)

    Roberto Wagner Júnior Freire de Freitas

    2010-06-01

    Full Text Available O objetivo da pesquisa foi conhecer os hábitos cotidianos, relacionados à prática de atividade física, em 307 estudantes entre 12 e 17 anos, de seis escolas privadas, de Fortaleza - Brasil, entre os meses de março e junho de 2007. Foi aplicado um formulário para registrar sedentarismo, IMC, pressão arterial e glicemia. Para análise das proporções foi utilizado o teste do Qui-quadrado. Cerca de 68% dos jovens eram inativos. O sedentarismo foi maior nos pesquisados do sexo feminino (p=0, 000 e naqueles com excesso de peso (p=0,001. Entre os adolescentes ativos o exercício físico mais praticado era o futebol (42% e a musculação (19%. A educação em saúde nas escolas pode auxiliar no combate desse sedentarismo juvenil.El objetivo del estudio fue el de conocer los hábitos cotidianos, relacionados a la práctica de actividad física, en 307 estudiantes entre 12 y 17 años, de seis escuelas privadas, de Fortaleza-Brasil, en los meses de marzo y junio de 2007. Se aplicó una encuesta en que se registraron sedentarismo, IMC, pressión arterial y glicemia. Para los análisis de asociación entre proporciones, fue usado lo teste de Qui-quadrado. Aproximadamente 68% de los jóvenes eran sedentários. El sedentarismo fue mayor en los investigados del sexo femenino (p=0, 000 y en los que tenían con sobrepeso (p=0, 001. En los jóvenes activos el ejercicio más practicado era el fútbol (42% y peso (19%. La educación para la salud en la escuela puede ayudar en la lucha contra el sedentarismo en los jóvenes.It aimed to learn the daily habits related to the physical activity practice among private state schools adolescents in Fortaleza-Brazil. We investigated 307 students between 12 and 17 years old from six private schools, in the months March to June 2007. We applied a form which recorded sedentarism, BMI, blood pressure and blood glucose. The chi-squared test was used for to analysis the proportions. About 68% of young people were

  7. Consulta de enfermagem: análise das ações junto a programas de hipertensão arterial, em Fortaleza Consultas de enfermeria: analisis de las actividades desarrolladas en las de los programas de hipertensión arterial de Fortaleza Nursing consultation: analysis of the actions developed by a hypertension program in the city of Fortaleza

    Directory of Open Access Journals (Sweden)

    Isabel Cristina Filgueira Maciel

    2003-03-01

    Full Text Available A atuação da enfermeira nos Programas de Hipertensão e Diabetes tem se mostrado importante, abordando aspectos relativos às doenças e ao paciente, holisticamente. A consulta de enfermagem é um momento ímpar dessa abordagem. Estudo descritivo-exploratório, visa investigar as atividades desenvolvidas nas Consultas de Enfermagem realizadas nos Programas de Hipertensão Arterial implantados no município de Fortaleza-Ceará. Os dados foram coletados de março a maio de 1999, com 14 enfermeiras que trabalham nesses serviços e analisados à luz do referencial de Análise de Conteúdo de Bardin, contemplando a técnica de Análise Categorial. Os resultados mostraram que a consulta de enfermagem ainda é realizada de forma muito centrada na consulta médica, baseada, portanto, no modelo médico curativo tradicional. As atividades desenvolvidas pelas enfermeiras restringem-se à anamnese, exame físico sumário e orientações sobre dieta, medicamentos, caminhadas e uso de chás. Nas consultas, predomina o atendimento individual, sem considerar a família e abordagens grupais.La actuación de la enfermería en los programas de hipertensión y diabetes es importante, porque abarca los aspectos referentes a la enfermedad y también el paciente holísticamente. Estudio descriptivo exploratorio que pretende investigar las actividades desarrolladas en las Consultas de Enfermería realizadas en los Programas de Hipertensión Arterial implantados en el municipio de Fortaleza-Ceará. Los datos fueron recogidos de marzo a mayo de 1999, con 14 enfermeras que trabajan en estos servicios fueron analizados siguiendo el análisis de contenido de Bardin, que contempla la técnica de análisis por categorías. Los resultados mostraron que la consulta de enfermería aún es realizada de forma centrada en la consulta médica, por lo tanto, aún basada en el modelo médico curativo tradicional. Las actividades desarrolladas por las enfermeras se restringen a

  8. Geography, population, demography, socioeconomic, anthropometry, and environmental status in the MAL-ED cohort and case-control study Sites in Fortaleza, Ceará, Brazil.

    Science.gov (United States)

    Lima, Aldo A M; Oriá, Reinaldo B; Soares, Alberto M; Filho, José Q; de Sousa, Francisco; Abreu, Cláudia B; Bindá, Alexandre; Lima, Ila; Quetz, Josiane; Moraes, Milena; Maciel, Bruna; Costa, Hilda; Leite, Alvaro M; Lima, Noélia L; Mota, Francisco S; Di Moura, Alessandra; Scharf, Rebecca; Barrett, Leah; Guerrant, Richard L

    2014-11-01

    The Etiology, Risk Factors and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development (MAL-ED) cohort in the study's Fortaleza, Brazil, catchment area has a population of approximately 82 300 inhabitants. Most of the households (87%) have access to clean water, 98% have electricity, and 69% have access to improved toilet/sanitation. Most childbirths occur at the hospital, and the under-5 mortality rate is 20 per 1000 live births. The MAL-ED case-control study population, identified through the Institute for the Promotion of Nutrition and Human Development (IPREDE), serves 600 000 inhabitants from areas totaling about 42% of the city of Fortaleza. IPREDE receives referrals from throughout the state of Ceará for infant nutrition, and provides services including teaching activities and the training of graduate students and health professionals, while supporting research projects on child nutrition and health. In this article, we describe the geographic, demographic, socioeconomic, anthropometric, and environmental status of the MAL-ED cohort and case-control study populations in Fortaleza, Brazil. © The Author 2014. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  9. Caracterização e classificação dos resíduos de construção civil da cidade de Fortaleza (CE

    Directory of Open Access Journals (Sweden)

    Adriana Sampaio Lima

    2013-06-01

    Full Text Available Este estudo visa analisar a composição gravimétrica, avaliar parâmetros químicos e classificar os Resíduos de Construção Civil (RCC da cidade de Fortaleza de acordo com a Resolução CONAMA nº 307 e com a NBR 10004. Os resultados indicam que o RCC de Fortaleza é composto por 93,40% do Grupo A, 6,40% do Grupo B, 0,02% do Grupo C e 0,20% Grupo D. O primeiro é composto principalmente por areia e solo (24,65% e argamassa (22,00%, que são materiais com alto potencial de reutilização ou reciclagem. Além disso, de acordo com a análise química, o RCC de Fortaleza mostrou alta variabilidade em todos os parâmetros. Cr, Pb e SO4²-, por exemplo, apresentaram valores acima dos limites especificados pela NBR 10004, indicando que esse material deve ser classificado como Classe II-A (não perigoso e não inerte.

  10. Tropospheric ozone over a tropical Atlantic station in the Northern Hemisphere: Paramaribo, Surinam (6°N, 55°W)

    NARCIS (Netherlands)

    Peters, W.; Krol, M. C.; Fortuin, J. P. F.; Kelder, H. M.; Thompson, A. M.; Becker, C. R.; Lelieveld, J.; Crutzen, P. J.

    2004-01-01

    We present an analysis of 2.5 yr of weekly ozone soundings conducted at a new monitoring station in Paramaribo, Surinam (6°N, 55°W). This is currently one of only three ozone sounding stations in the Northern Hemisphere (NH) tropics, and the only one in the equatorial Atlantic region. Paramaribo is

  11. Padrão alimentar de lactentes residentes em áreas periféricas de Fortaleza

    Directory of Open Access Journals (Sweden)

    SOARES Nadia Tavares

    2000-01-01

    Full Text Available Este estudo caracterizou o padrão alimentar de 96 crianças menores de um ano assistidas pelo Fundo Cristão para Crianças nos bairros Álvaro Weyne e Presidente Kennedy, na cidade de Fortaleza, Brasil. Os dados foram levantados por meio de entrevista domiciliar, utilizando o método recordatório 24h para conhecimento das quantidades dos alimentos consumidos, e um formulário contendo perguntas estruturadas sobre a prática do aleitamento materno e idade de introdução dos alimentos de desmame. Os resultados indicaram que o aleitamento materno misto predomina (68% sobre o aleitamento artificial (32% e exclusivo (10% e que 7% das crianças nunca receberam leite materno. Porém, até o final do décimo mês de vida, 53% das crianças ainda são amamentadas. Mingau lácteo, preparado com leite de vaca não modificado, constitui a alimentação básica de desmame. Do ponto de vista nutricional, as dietas são desbalanceadas, sendo o ferro o nutriente mais deficiente. Devem ser intensificados os esforços na promoção da alimentação infantil apropriada.

  12. PERFIL DOS PACIENTES ATENDIDOS EM CRISE HIPERTENSIVA EM UM SERVIÇO DE URGÊNCIA DE FORTALEZA

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    RHANNA EMANUELA FONTENELE LIMA

    2005-01-01

    Full Text Available Se ha objetivado caracterizar, a partir del análisis de registros de atención de emergencia, el perfil de los pacientes atendidos con crisis de hipertensión en un hospital municipal de Fortaleza-en enero y febrero de 2002-donde se han investigado las características de sexo, rango de edad, turno con mayor frecuencia de atención en relación con crisis de hipertensión y remedios indicados durante la crisis. Los resultados muestran que la atención en clínicas médicas fue elevada (un 5%; más homogénea en los tres períodos, acometiendo desde personas jóvenes (20 años hasta aquellas con más de 90 años de edad, principalmente mujeres (un 64,4%, independiente de la edad de las mismas. Los remedios más usados fueron los inhibidores de la enzima modificadora de angiotensina (un 62,3% y los diuréticos de elevación (un 57,1%.

  13. Vaccination status of people living with HIV/AIDS in outpatient care in Fortaleza, Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Gilmara Holanda da Cunha

    2016-09-01

    Full Text Available Antiretroviral therapy has increased the survival of patients with HIV/AIDS, thus necessitating health promotion practice with immunization. Vaccines are critical components for protecting people living with HIV/AIDS (PLWHA. The purpose of study was to analyze the vaccination status of PLWHA in outpatient care in Fortaleza, Ceará, Brazil. Cross-sectional study performed from June 2014 to June 2015. The screening was done with patients in antiretroviral therapy, 420 patients underwent screening, but only 99 met the inclusion criteria. Data were collected for interviews using forms to characterize sociodemographic, clinical and vaccination situations. Only 14 patients had complete vaccination schedules. The most used vaccines were hepatitis B, influenza vaccine and 23-valent pneumococcal. There was no difference between men and women regarding the proportion of PLWHA with full vaccination schedule or between sex, skin color, marital status, sexual orientation, religion or occupational status. There was no difference between having or not having a complete vaccination schedule and age, years of education, family income or number of hospitalizations. CD4+ T-cells count of patients with incomplete immunization was lower than patients with complete immunization. Health education strategies can be done individually or in groups to explain the importance of vaccination and to remind about doses to be administered. Most patients did not have proper adherence to vaccination schedules, especially due to lack of guidance. Results implied that education in health is important for vaccination adhesion, knowledge of adverse events and continuation of schemes.

  14. Fortalezas y Guerra Santa : un estudio comparado de algunos aspectos de funcionalidad en las fronteras de la Cristiandad

    Directory of Open Access Journals (Sweden)

    J. Santiago Palacios Ontalva

    2001-01-01

    Full Text Available En torno a las fortalezas se desarrollaron muchos de los episodios bélicos del secular enfrentamiento medieval entre el Islam y la Cristiandad. En las fronteras orientales y occidentales de estos dos mundos, la arquitectura militar se convirtió en objetivo prioritario de la guerra, al tiempo que constituían bases seguras desde las que operar contra el enemigo. El trabajo que presentamos nos permite acercarnos a la compleja realidad funcional de estos castillos a la vanguardia de la Guerra Santa, recurriendo para ello a diversos ejemplos de la realidad fronteriza en la Península Ibérica y en Tierra Santa.In connection witti thíe fortresses were developed many warlike episodes of the secular medieval confrontation among tfie Islam and the Christendom. In the western and eastern frontiers of these two worlds, the militan/ architecture was converted in a high-priority objective of the war, to the time that constituted secure bases from those which to opérate against the enemy. The work that we present allow us an approach to the complex functional reality of these castles to the forefront of the Holy War, appealing for this to various examples of the Holy Land and the Iberian península border reality.

  15. Avaliação da qualidade do sono de estudantes universitários de Fortaleza-CE

    Directory of Open Access Journals (Sweden)

    Márcio Flávio Moura de Araújo

    2013-01-01

    Full Text Available El objetivo de esta investigación fue evaluar la calidad del sueño de los estudiantes universitarios en Fortaleza, Ceará, Brasil. Se realizó una encuesta con los estudiantes de 701 en la Universidad Federal de Ceará (UFC entre marzo y junio de 2011. Se utilizó el índice de la Calidad del Sueño de Pittsburgh (PSQI. La mayoría de los estudiantes tenía una mala calidad subjetiva del sueño (54%, la latencia del sueño y la eficiencia de menos de 15 minutos (60,1% y 65% (99%, respectivamente. La duración del sueño de la muestra fue de 6,3 horas por día (SD ± 1,4 horas (p <0,001. El análisis de los siete componentes del PSQI mostró que una parte sustancial de los estudiantes universitarios encuestados (95,2% tienen mala calidad del sueño. El análisis de datos reveló que una parte sustancial de la universidad investigado (95,3% tenían mala calidad del sueño.

  16. Surveillance of occupational accidents by sentinel workers' health centers in the municipality of Fortaleza, Northeast of Brazil.

    Science.gov (United States)

    Ferreira, Marcelo José Monteiro; Lima, Romênia Kelly Soares de; Silva, Ageo Mário Cândido da; Bezerra, José Gomes; Cavalcanti, Luciano Pamplona de Góes

    2017-10-01

    This article examines the factors associated with the notification of occupational accidents by sentinel workers' health centers in the municipality of Fortaleza in the northeast of Brazil. An analytical cross-sectional study was conducted of five sentinel workers' health centers for serious and fatal occupational accidents. A total of 354 interviews were conducted with professionals responsible for notifying occupational accidents. Bivariate analysis was conducted using Pearson's chi-square test and/or Fisher's exact test using prevalence ratios and 95% confidence intervals, followed by stratified analysis and multivariate Poisson regression adopting the stepwise forward method. Variables that obtained a p-value of less than or equal to the chosen significance level (0.05) were maintained in the final model. Professionals who had a greater number of years of work experience, had undertaken three training courses, had knowledge of policy directives concerning occupational accidents, were familiar with the SINAN notification form, were aware that occupational accidents are reportable, and discussed the theme of occupational accidents in the workplace were statistically more likely to notify occupational accidents. Education and training helps raise awareness among health professionals.

  17. PRODUÇÃO DO ESPAÇO METROPOLITANO DE FORTALEZA E A DINÂMICA INDUSTRIAL

    Directory of Open Access Journals (Sweden)

    Alexsandra Maria Vieira Muniz

    2015-01-01

    Full Text Available El periodo técnico-científico-informacional actual es basilar para la comprensión de la reestructuración urbana e industrial, así evidenció en este estudio las metamorfosis en el espacio metropolitano de Fortaleza, en curso en las últimas décadas, con énfasis en el proceso de industrialización, reflejo de las políticas públicas y privadas que crean las condiciones favorables para la reproducción expandido del capitalismo. Con la pregunta guía sobre cómo la industrial actividad participa en la producción del espacio metropolitano, pasando la cuestión de la gestión y la planificación de este espacio y el papel del Estado, utilizamos datos secundarios, en particular el Instituto de Investigaciones Económicas y Estrategias de Ceará (IPECE,Instituto Brasileño de Geografía y Estadística (IBGE y la Federación de Industrias del Estado de Ceará (FIEC,los cuales sumado a la investigación de campo y la literatura permitió analizar los resultados resaltados.

  18. The Southern Hemisphere and equatorial region ionization response for a 22 September 1999 severe magnetic storm

    Directory of Open Access Journals (Sweden)

    E. Yizengaw

    2004-09-01

    Full Text Available The ionospheric storm evolution process was monitored during the 22 September 1999 magnetic storm over the Australian eastern region, through measurements of the ionospheric Total Electron Content (TEC from seven Global Positioning Systems (GPS stations. The spatial and temporal variations of the ionosphere were analysed as a time series of TEC maps. Results of our analysis show that the main ionospheric effect of the storm under consideration are: the long lasting negative storm effect during a magnetic storm at mid-latitude regions; the strong, positive disturbances during the storm's main phase at auroral latitude regions; the effects of storm-induced equatorward directed wind causing a positive disturbance at high and mid-latitude stations with appropriate time shift between higher and lower latitudes; daytime poleward movement of depleted plasma that causes temporary suppression of the equatorial anomaly during the start of the storm recovery phase; and prompt penetration of eastward electric fields to ionospheric altitudes and the production of nearly simultaneous TEC enhancement at all latitudes. In general, we found dominant negative disturbance over mid and high latitudes and positive disturbance at low latitudes. A comparison of storm-time behaviour of TEC determined from GPS satellites, and foF2 derived from ionosondes at a range of latitudes, showed reasonable agreement between the two independent measurements.

  19. Out-patient drug treatment of pneumonia among children under two years of age in Fortaleza, Brazil Tratamento ambulatorial das pneumonias nas crianças menores de dois anos em Fortaleza, Brasil

    Directory of Open Access Journals (Sweden)

    Chizuru Misago

    1997-01-01

    Full Text Available Results are reported from a study on drug use in treatment of children with pneumonia in a pediatric hospital in the city of Fortaleza, Northeastern Brazil. There were 171 out-patients; prescription details were obtained for 149. The most commonly prescribed antimicrobial drug was procaine penicillin, accounting for 33% of antimicrobial prescriptions, followed by benzathine penicillin (31%, ampicillin or amoxicillin (12%, and cotrimoxazole (8%. Benzathine penicillin was frequently given with other drugs, but was the sole antimicrobial agent for 31 children. Compliance with antimicrobial treatment was 52% overall and was higher for the injectables. Prescription patterns varied from child to child, and children were often prescribed more than one antimicrobial in the same or repeat prescriptions; combining this information with compliance, 81 (54% of the children were estimated to have received 5 or more days of appropriate antimicrobial treatment for pneumonia. This percentage is not high, and five days were often reached after using more than one antimicrobial and after repeat visits. The authors concluded that the need remains for simple antimicrobial regimes, attractive to comply with, that can be expected to be consistently used. Other drugs were chiefly analgesics and bronchodilators.Estudou-se a aderência ao tratamento de pneumonia em crianças, em serviço ambulatorial de hospital pediátrico em Fortaleza, Brasil. Foram investigadas 171 crianças com diagnóstico de pneumonia. Através de questionário foram coletadas informações referentes à prescrição médica e estimada a aderência ao tratamento de 149 crianças. Os antimicrobianos mais comumente prescritos foram penicilina procaína (33%, penicilina benzatina (31%, ampicilina ou amoxacilina (12% e cotrimoxazol (8%. Embora tenha sido freqüente a associação de antimicrobianos com outros medicamentos, tratamento exclusivo com penicilina procaina foi prescrito para 31 crianças. A

  20. ASSÉDIO MORAL NO TRABALHO: UM ESTUDO EXPLORATÓRIO NO MUNICÍPIO DE FORTALEZA – CEARÁ./ MORAL HARASSMENT AT WORK: AN EXPLORATORY STUDY IN FORTALEZA CITY

    Directory of Open Access Journals (Sweden)

    Samira Daiha Benevides

    2012-08-01

    Full Text Available Pessoas assediadas estão ousando se expressar e denunciar as práticas abusivas de que são vítimasno ambiente de trabalho, assim, o objetivo deste artigo é apresentar a incidência dos casos de assédiomoral no município de Fortaleza – Ceará, utilizando o banco de dados de queixas registradas pelas vítimasna Delegacia Regional do Trabalho, no período de janeiro de 2008 a dezembro de 2009. No referencialteórico conceitua-se o assédio moral, suas manifestações e aspectos legais, bem como as estruturas psíquicasde defesa do trabalhador. Foi feita uma pesquisa exploratória com a utilização de dados secundários,obtidos no Núcleo de Combate a Discriminação por meio do relatório mensal das denúncias de AssédioMoral, elaborado pela Comissão Regional de Igualdade de Oportunidades de Gênero, Raça e Etnia, dePessoas com Deficiência e de Combate à Discriminação. Os resultados estão demonstrados por meio degráficos que apontam o tipo de discriminação por assédio moral, por perfil profissional, sexo e idade do reclamante.Pode-se concluir que há discriminação em várias áreas, gerando, muitas vezes, comportamentosindesejáveis e condutas abusivas, degradando o clima de trabalho e reduzindo a produtividade./ The objective of this article is to present the incidence of the cases of moral harassment inFortaleza city using the data base of complaints registered for the victims in the Delegacia Regional doTrabalho in the period of January of 2008 the December of 2009. The literature review is based on themoral harassment, its legal manifestations, as well as the psychic structures of defense of the worker. Aexploratory research with the use of secondary data was made in the Nucleus of Combat was becomefullfilled the Discrimination through the monthly report of the denunciations of moral harassment elaboratedby the Regional Commission of Equality of Chances of Gender, Race and ethnic group, of Peoplewith Deficiency and Combat

  1. Ongoing Analysis of Jupiter's Equatorial Hotspots and Plumes from Cassini

    Science.gov (United States)

    Choi, D. S.; Showmwn, A. P.; Vasavada, A. R.; Simon-Miller, A. A.

    2012-01-01

    We present updated results from our ongoing analysis of Cassini observations of Jupiter's equatorial meteorology. For two months preceding the spacecraft's closest approach of the planet, the ISS instrument onboard Cassini regularly imaged the atmosphere of Jupiter. We created time-lapse movies from this period that show the complex activity and interactions of the equatorial atmosphere. During this period, hot spots exhibited significant variations in size and shape over timescales of days and weeks. Some of these changes appear to be a result of interactions with passing vortex systems in adjacent latitudes. Strong anticyclonic gyres to the southeast of the dark areas converge with flow from the west and appear to circulate into a hot spot at its southwestern corner.

  2. Bottomside sinusoidal irregularities in the equatorial F region

    Science.gov (United States)

    Valladares, C. E.; Hanson, W. B.; Mcclure, J. P.; Cragin, B. L.

    1983-01-01

    By using the Ogo 6 satellite, McClure and Hanson (1973) have discovered sinusoidal irregularities in the equatorial F region ion number density. In the present investigation, a description is provided of the properties of a distinct category of sinusoidal irregularities found in equatorial data from the AE-C and AE-E satellites. The observed scale sizes vary from about 300 m to 3 km in the direction perpendicular to B, overlapping with and extending the range observed by using Ogo 6. Attention is given to low and high resolution data, a comparison with Huancayo ionograms, the confinement of 'bottomside sinusoidal' (BSS) irregularities essentially to the bottomside of the F layer, spectral characteristics, and BSS, scintillation, and ionosonde observations.

  3. Nonlinearly coupled dynamics of irregularities in the equatorial electrojet

    Energy Technology Data Exchange (ETDEWEB)

    Atul, J.K., E-mail: jkatulphysics@gmail.com [Department of Physics, College of Commerce under Magadh University, Patna 800020 (India); Sarkar, S. [FCIPT, Institute for Plasma Research, Gandhinagar 382428 (India); Singh, S.K. [Department of Physics, College of Commerce under Magadh University, Patna 800020 (India)

    2016-04-01

    Kinetic wave description is used to study the nonlinear influence of background Farley Buneman (FB) modes on the Gradient Drift (GD) modes in the equatorial electrojet ionosphere. The dominant nonlinearity is mediated through the electron flux term in the governing fluid equation which further invokes a turbulent current into the system. Electron dynamics reveals the modification in electron collision frequency and inhomogeneity scale length. It is seen that the propagation and growth rate of GD modes get modified by the background FB modes. Also, a new quasimode gets excited through the quadratic dispersion relation. Physical significance of coupled dynamics between the participating modes is also discussed. - Highlights: • Nonlinear influence of Farley Buneman mode on the Gradient drift mode, is investigated. • Electron collision frequency and density gradient scale length get modified. • A new quasimode gets excited due to the competition between these modes. • It seems to be important for modelling of Equatorial Electrojet current system.

  4. Equatorial enhancement of the nighttime OH mesospheric infrared airglow

    International Nuclear Information System (INIS)

    Baker, D J; Thurgood, B K; Harrison, W K; Mlynczak, M G; Russell, J M

    2007-01-01

    Global measurements of the hydroxyl mesospheric airglow over an extended period of time have been made possible by the NASA SABER infrared sensor aboard the TIMED satellite which has been functioning since December of 2001. The orbital mission has continued over a significant portion of a solar cycle. Experimental data from SABER for several years have exhibited equatorial enhancements of the nighttime mesospheric OH (Δv=2) airglow layer consistent with the high average diurnal solar flux. The brightening of the OH airglow typically means more H+O 3 is being reacted. At both the spring and autumn seasonal equinoxes when the equatorial solar UV irradiance mean is greatest, the peak volume emission rate (VER) of the nighttime Meinel infrared airglow typically appears to be both significantly brighter plus lower in altitude by several kilometres at low latitudes compared with midlatitude findings

  5. Nonlinearly coupled dynamics of irregularities in the equatorial electrojet

    International Nuclear Information System (INIS)

    Atul, J.K.; Sarkar, S.; Singh, S.K.

    2016-01-01

    Kinetic wave description is used to study the nonlinear influence of background Farley Buneman (FB) modes on the Gradient Drift (GD) modes in the equatorial electrojet ionosphere. The dominant nonlinearity is mediated through the electron flux term in the governing fluid equation which further invokes a turbulent current into the system. Electron dynamics reveals the modification in electron collision frequency and inhomogeneity scale length. It is seen that the propagation and growth rate of GD modes get modified by the background FB modes. Also, a new quasimode gets excited through the quadratic dispersion relation. Physical significance of coupled dynamics between the participating modes is also discussed. - Highlights: • Nonlinear influence of Farley Buneman mode on the Gradient drift mode, is investigated. • Electron collision frequency and density gradient scale length get modified. • A new quasimode gets excited due to the competition between these modes. • It seems to be important for modelling of Equatorial Electrojet current system.

  6. Saturn's equatorial jet structure from Cassini/ISS

    Science.gov (United States)

    García-Melendo, Enrique; Legarreta, Jon; Sánchez-Lavega, Agustín.; Pérez-Hoyos, Santiago; Hueso, Ricardo

    2010-05-01

    Detailed wind observations of the equatorial regions of the gaseous giant planets, Jupiter and Saturn, are crucial for understanding the basic problem of the global circulation and obtaining new detailed information on atmospheric phenomena. In this work we present high resolution data of Saturn's equatorial region wind profile from Cassini/ISS images. To retrieve wind measurements we applied an automatic cross correlator to image pairs taken by Cassini/ISS with the MT1, MT2, MT3 filters centred at the respective three methane absorbing bands of 619nm, 727nm, and 889nm, and with the adjacent continuum CB1, CB2, and CB3 filters. We obtained a complete high resolution coverage of Saturn's wind profile in the equatorial region. The equatorial jet displays an overall symmetric structure similar to that shown the by same region in Jupiter. This result suggests that, in accordance to some of the latest compressible atmosphere computer models, probably global winds in gaseous giants are deeply rooted in the molecular hydrogen layer. Wind profiles in the methane absorbing bands show the effect of strong vertical shear, ~40m/s per scale height, confirming previous results and an important decay in the wind intensity since the Voyager era (~100 m/s in the continuum and ~200 m/s in the methane absorbing band). We also report the discovery of a new feature, a very strong and narrow jet on the equator, about only 5 degrees wide, that despite the vertical shear maintains its intensity (~420 m/s) in both, the continuum and methane absorbing band filters. Acknowledgements: Work supported by the Spanish MICIIN AYA2009-10701 with FEDER and Grupos Gobierno Vasco IT-464-07.

  7. Meteorology of Jupiter's Equatorial Hot Spots and Plumes from Cassini

    Science.gov (United States)

    Choi, David Sanghun; Showman, Adam P.; Vasavada, Ashwin R.; Simon-Miller, Amy A.

    2013-01-01

    We present an updated analysis of Jupiter's equatorial meteorology from Cassini observations. For two months preceding the spacecraft's closest approach, the Imaging Science Subsystem (ISS) onboard regularly imaged the atmosphere. We created time-lapse movies from this period in order to analyze the dynamics of equatorial hot spots and their interactions with adjacent latitudes. Hot spots are relatively cloud-free regions that emit strongly at 5 lm; improved knowledge of these features is crucial for fully understanding Galileo probe measurements taken during its descent through one. Hot spots are quasistable, rectangular dark areas on visible-wavelength images, with defined eastern edges that sharply contrast with surrounding clouds, but diffuse western edges serving as nebulous boundaries with adjacent equatorial plumes. Hot spots exhibit significant variations in size and shape over timescales of days and weeks. Some of these changes correspond with passing vortex systems from adjacent latitudes interacting with hot spots. Strong anticyclonic gyres present to the south and southeast of the dark areas appear to circulate into hot spots. Impressive, bright white plumes occupy spaces in between hot spots. Compact cirrus-like 'scooter' clouds flow rapidly through the plumes before disappearing within the dark areas. These clouds travel at 150-200 m/s, much faster than the 100 m/s hot spot and plume drift speed. This raises the possibility that the scooter clouds may be more illustrative of the actual jet stream speed at these latitudes. Most previously published zonal wind profiles represent the drift speed of the hot spots at their latitude from pattern matching of the entire longitudinal image strip. If a downward branch of an equatorially-trapped Rossby wave controls the overall appearance of hot spots, however, the westward phase velocity of the wave leads to underestimates of the true jet stream speed.

  8. Equatorial noise emissions with quasiperiodic modulation of wave intensity

    Czech Academy of Sciences Publication Activity Database

    Němec, F.; Santolík, Ondřej; Hrbáčková, Zuzana; Pickett, J. S.; Cornilleau-Wehrlin, N.

    2015-01-01

    Roč. 120, č. 4 (2015), s. 2649-2661 ISSN 2169-9380 R&D Projects: GA MŠk(CZ) LH11122 Institutional support: RVO:68378289 Keywords : equatorial noise * magnetosonic waves * quasiperiodic modulation Subject RIV: BL - Plasma and Gas Discharge Physics Impact factor: 3.318, year: 2015 http://onlinelibrary.wiley.com/doi/10.1002/2014JA020816/full

  9. Increases of equatorial total electron content (TEC) during magnetic storms

    International Nuclear Information System (INIS)

    Yeboah-Amankwah, D.

    1976-01-01

    This paper is a report on the analysis of equatorial electron content, TEC, during magnetic storms. Storms between 1969 and 1972 have been examined as part of an on-going study of TEC morphology during magnetically disturbed days. The published magnetic Ksup(p) indices and TEC data from the Legon abservatory have been employed. The general picture arising from the analysis is that the total electron content of the ionosphere is significantly enhanced during magnetic storms. (author)

  10. Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet

    Directory of Open Access Journals (Sweden)

    A. B. Rabiu

    2017-04-01

    Full Text Available We examined the longitudinal variability of the equatorial electrojet (EEJ and the occurrence of its counter electrojet (CEJ using the available records of the horizontal component H of the geomagnetic field simultaneously recorded in the year 2009 (mean annual sunspot number Rz  =  3.1 along the magnetic equator in the South American, African, and Philippine sectors. Our results indicate that the EEJ undergoes variability from one longitudinal representative station to another, with the strongest EEJ of about 192.5 nT at the South American axis at Huancayo and a minimum peak of 40.7 nT at Ilorin in western Africa. Obtained longitudinal inequality in the EEJ was explicable in terms of the effects of local winds, dynamics of migratory tides, propagating diurnal tide, and meridional winds. The African stations of Ilorin and Addis Ababa registered the greatest % of CEJ occurrence. Huancayo in South America, with the strongest electrojet strength, was found to have the least occurrence of the CEJ. It is suggested that activities that support strong EEJ inhibits the occurrence of the CEJ. Percentage of occurrence of the CEJ varied with seasons across the longitudes. The order of seasonal variation of morning occurrence does not tally with the evening occurrence order at any station. A semiannual equinoctial maximum in percentage of morning occurrence of the CEJ was obtained at Huancayo and Addis Ababa. Only Addis Ababa recorded equal equinoctial maxima in percentage of evening occurrence of the CEJ. The seasonal distribution of the occurrences of the CEJ at different time regimes implies a seasonal variability of causative mechanisms responsible for the occurrence of the CEJ.

  11. Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet

    International Nuclear Information System (INIS)

    Rabiu, A. Babatunde; Folarin, Olanike Olufunmilayo; Lagos Univ., Lagos State; Uozumi, Teiji; Yoshikawa, Akimasa; Hamid, Nurul Shazana Abdul

    2017-01-01

    We examined the longitudinal variability of the equatorial electrojet (EEJ) and the occurrence of its counter electrojet (CEJ) using the available records of the horizontal component H of the geomagnetic field simultaneously recorded in the year 2009 (mean annual sunspot number R z = 3.1) along the magnetic equator in the South American, African, and Philippine sectors. Our results indicate that the EEJ undergoes variability from one longitudinal representative station to another, with the strongest EEJ of about 192.5 nT at the South American axis at Huancayo and a minimum peak of 40.7 nT at Ilorin in western Africa. Obtained longitudinal inequality in the EEJ was explicable in terms of the effects of local winds, dynamics of migratory tides, propagating diurnal tide, and meridional winds. The African stations of Ilorin and Addis Ababa registered the greatest % of CEJ occurrence. Huancayo in South America, with the strongest electrojet strength, was found to have the least occurrence of the CEJ. It is suggested that activities that support strong EEJ inhibits the occurrence of the CEJ. Percentage of occurrence of the CEJ varied with seasons across the longitudes. The order of seasonal variation of morning occurrence does not tally with the evening occurrence order at any station. A semiannual equinoctial maximum in percentage of morning occurrence of the CEJ was obtained at Huancayo and Addis Ababa. Only Addis Ababa recorded equal equinoctial maxima in percentage of evening occurrence of the CEJ. The seasonal distribution of the occurrences of the CEJ at different time regimes implies a seasonal variability of causative mechanisms responsible for the occurrence of the CEJ.

  12. Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet

    Energy Technology Data Exchange (ETDEWEB)

    Rabiu, A. Babatunde [National Space Research and Development Agency, Anyigba (Nigeria). Centre for Atmospheric Research; Folarin, Olanike Olufunmilayo [National Space Research and Development Agency, Anyigba (Nigeria). Centre for Atmospheric Research; Lagos Univ., Lagos State (Nigeria). Ionospheric and Space Physics Lab.; Uozumi, Teiji; Yoshikawa, Akimasa [Kyushu Univ., Fukuoka (Japan). International Center for Space Weather Science and Education ICSWSE; Hamid, Nurul Shazana Abdul [National Univ. of Malaysia, Selangor (Malaysia). Faculty of Science and Technology

    2017-07-01

    We examined the longitudinal variability of the equatorial electrojet (EEJ) and the occurrence of its counter electrojet (CEJ) using the available records of the horizontal component H of the geomagnetic field simultaneously recorded in the year 2009 (mean annual sunspot number R{sub z} = 3.1) along the magnetic equator in the South American, African, and Philippine sectors. Our results indicate that the EEJ undergoes variability from one longitudinal representative station to another, with the strongest EEJ of about 192.5 nT at the South American axis at Huancayo and a minimum peak of 40.7 nT at Ilorin in western Africa. Obtained longitudinal inequality in the EEJ was explicable in terms of the effects of local winds, dynamics of migratory tides, propagating diurnal tide, and meridional winds. The African stations of Ilorin and Addis Ababa registered the greatest % of CEJ occurrence. Huancayo in South America, with the strongest electrojet strength, was found to have the least occurrence of the CEJ. It is suggested that activities that support strong EEJ inhibits the occurrence of the CEJ. Percentage of occurrence of the CEJ varied with seasons across the longitudes. The order of seasonal variation of morning occurrence does not tally with the evening occurrence order at any station. A semiannual equinoctial maximum in percentage of morning occurrence of the CEJ was obtained at Huancayo and Addis Ababa. Only Addis Ababa recorded equal equinoctial maxima in percentage of evening occurrence of the CEJ. The seasonal distribution of the occurrences of the CEJ at different time regimes implies a seasonal variability of causative mechanisms responsible for the occurrence of the CEJ.

  13. Feeding dynamics and ecomorphology of Oligosarcus jenynsii (Gunther, 1864) and Oligosarcus robustus (Menezes, 1969) in the Lagoa Fortaleza, southern Brazil.

    Science.gov (United States)

    Nunes, D M; Hartz, S M

    2006-02-01

    Oligosarcus jenynsii and Oligosarcus robustus are fishes of Characidae family that occur in Rio Grande do Sul, Uruguay and northern Argentina. This work purported to study the feeding dynamics (repletion and hepatosomatic indexes and condition factor) over time, and to investigate the coexistence of these two species by evaluating the partition of resources using qualitative and quantitative analyses of diet, temporal and spatial segregation throughout the water column and some ecomorphological aspects of the species in the Lagoa Fortaleza. Specimens were sampled monthly, from May 2000 to April 2001 during 24 h/month, using stationary gill nets of different mesh sizes. The records of each individual included total and standard length; total, stomach and liver weight; sex and stomach repletion. The variation of the mean values of repletion index and relative frequencies of stomach repletion stages indicate that O. jenynsii and O. robustus do not present seasonal differences in feeding intensity. The hepatosomatic index shows an allocation of energy to the liver during every period except reproduction, when part of the energy is used for gonad maturation. The estimated condition factor for both species reveals an increase in the reproductive period, evidencing the influence of gonads upon the condition of the fish. The diet analysis revealed that O. robustus is piscivorous, whereas O. jenynsii is a generalist carnivore, tending to piscivory as well. The active period of O. robustus is more concentrated at sunrise and sunset, whereas O. jenynsii is continually active, a characteristic related to hunting for prey. The ecomorphological analysis revealed differences between the two species in the dimensions of the mouth. Evidence suggests that the species coexist, sharing food sources, differing in oral morphology but ingesting similar prey, possibly because food is not a limiting factor in the environment.

  14. Feeding dynamics and ecomorphology of Oligosarcus jenynsii (Gunther, 1864 and Oligosarcus robustus (Menezes, 1969 in the Lagoa Fortaleza, southern Brazil

    Directory of Open Access Journals (Sweden)

    D. M. Nunes

    Full Text Available Oligosarcus jenynsii and Oligosarcus robustus are fishes of Characidae family that occur in Rio Grande do Sul, Uruguay and northern Argentina. This work purported to study the feeding dynamics (repletion and hepatosomatic indexes and condition factor over time, and to investigate the coexistence of these two species by evaluating the partition of resources using qualitative and quantitative analyses of diet, temporal and spatial segregation throughout the water column and some ecomorphological aspects of the species in the Lagoa Fortaleza. Specimens were sampled monthly, from May 2000 to April 2001 during 24 h/month, using stationary gill nets of different mesh sizes. The records of each individual included total and standard length; total, stomach and liver weight; sex and stomach repletion. The variation of the mean values of repletion index and relative frequencies of stomach repletion stages indicate that O. jenynsii and O. robustus do not present seasonal differences in feeding intensity. The hepatosomatic index shows an allocation of energy to the liver during every period except reproduction, when part of the energy is used for gonad maturation. The estimated condition factor for both species reveals an increase in the reproductive period, evidencing the influence of gonads upon the condition of the fish. The diet analysis revealed that O. robustus is piscivorous, whereas O. jenynsii is a generalist carnivore, tending to piscivory as well. The active period of O. robustus is more concentrated at sunrise and sunset, whereas O. jenynsii is continually active, a characteristic related to hunting for prey. The ecomorphological analysis revealed differences between the two species in the dimensions of the mouth. Evidence suggests that the species coexist, sharing food sources, differing in oral morphology but ingesting similar prey, possibly because food is not a limiting factor in the environment.

  15. Prevalência de sobrepeso e obesidade em escolares da rede pública e particular da cidade de fortaleza

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    Fernando Alberto Ramirez de Paula

    2014-12-01

    Full Text Available Objetivo: Verificar a prevalência de sobrepeso e obesidade em escolares da rede pública e particular da cidade de Fortaleza-CE. Métodos: Pesquisa observacional, transversal, desenvolvida no período de agosto a novembro de 2012, com amostra composta por 217 crianças na faixa etária entre 7 e 11 anos. Avaliaram-se os parâmetros antropométricos de massa corporal, estatura e índice de massa corporal (IMC. Realizou-se a análise dos dados com o auxílio do Predictive Analytics SoftWare. Resultados: Encontrou-se a média da idade das crianças de 8,1 anos. Na massa corporal, verificou-se que as crianças da escola particular tiveram média superior, sendo no masculino de 36,0±11,70 kg e no feminino de 33,59±8,97 kg, enquanto na escola pública o masculino foi de 27,05±05 kg e o feminino, 28,06±7,73 kg (p<0,05. Para o IMC, constatou-se, no ensino público, estado de eutrofia em 66 (81,5% crianças do sexo masculino e 65 (72,2% do feminino; por outro lado, verificou-se maior prevalência de crianças com sobrepeso e obesidade em alunos da escola particular, sendo 12 (50,0% do masculino e 10 (45,5% do feminino. Conclusão: Encontrou-se alta prevalência de crianças acometidas com excesso de peso e obesidade tanto em escolas da rede de ensino particular como pública, apontando maiores valores para as crianças da rede particular de ensino.

  16. Profile of acid-base disturbances in an intensive care unit of Fortaleza, Ceará, Brazil.

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    Renan Barbosa Rodrigues

    2014-09-01

    Full Text Available Introduction: Acid – base disturbances are entities caused by the deregulation of the concentration of bicarbonate ions, the concentration of hydrogen ions and the partial pressure of carbon dioxide in the blood. These disturbances modify most cell fuctions when present, jeopardizing the proper functioning of organs.Methods: Cross-sectional analytical study based upon data collected from medical files of patients in ICU as seen from August 1 to December 31, 2013 at the Dr. José Frota Institute in Fortaleza, Ceará. The variables studied were: age, sex, cause of ICU admission, pH, HCO3-, pO2, pCO2 , glomerular filtration rate ( GFR , serum potassium concentrarion, serum magnesium concentration, serum creatinine and hemoglobin levels.Results: The most frequent disorders were primary respiratory alkalosis with               33 ( 38,4 % cases, 30 ( 34,9 % of metabolic alkalosis, 13 ( 15.1% of metabolic acidosis,    7 ( 8,2% did not present acid-base disorders and respiratory acidosis           3 ( 3,5%. Patients admitted with TBI had respiratory alkalosis as the most common primary disorder, followed by metabolic alkalosis, 16 ( 47,0 % and 13 ( 38,2 % , respectively. The main disturbances were mixed respiratory alkalosis with metabolic alkalosis and respiratory alkalosis with metabolic alkalosis found in 15.12% of patients in each of these combinations. Conclusion:The importance  of a detailed evaluation of acid-base disturbances is necessary since these disorders lead to higher mortality rates, so it is necessary to establish the main types of disorders that are associated with a particular cause of hospitalization .

  17. CARACTERIZAÇÃO DE GESTANTES COM TESTE RÁPIDO POSITIVO PARA HIV EM FORTALEZA-CE

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    LÉA MARIA MOURA BARROSO

    2007-01-01

    Full Text Available El objetivo fue describir a las gestantes sometidas al test rápido para detectar VIH/SIDA en una maternidad de Fortaleza- CE, en relación a las características sociodemográficas y clínicas. Estudio transversal del tipo documental retrospectivo, con trece gestantes sometidas al test rápido y con resultado positivo para VIH/SIDA en el periodo de abril de 2002 a abril de 2004. El promedio de edad de las gestantes era 26,2 años; el 61,5% estudió entre cuatro a siete años; el 69,2 % era de la capital y el 30,8 % del interior; el 53,8 % ama de casa; el 54,0 % con cuatro a siete consultas de prenatal; el 46,2 % fue diagnosticada antes del parto; el 84,6 % recibió profilaxis solamente en el parto; el 46,0% tuvo bolsa rota hasta cuatro horas antes del parto; el 77,0% parto quirúrgico y el 100% de los recién nacidos recibió el jarabe de AZT en las primeras dos horas de vida. Se concluye que la institución garantizó la reducción del riesgo de contaminación del recién nacido, sin embargo se percibió deficiencia en los servicios que ofrecieron atención antes del parto.

  18. MEMÓRIAS NARRATIVAS DO PROJETO MULHERES DE FORTALEZA: IGUALDADE DE GÊNERO E INCLUSÃO SOCIAL

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    Júlio César Ferreira Lima

    2017-03-01

    Full Text Available No Brasil, a abordagem por gênero revela entraves para inclusão feminina. Mesmo sendo a participação feminina maior que a masculina na aquisição de educação formal, mulheres são discriminadas em relação à inserção no mercado de trabalho. O Projeto Mulheres de Fortaleza (PMF, desenvolvido desde 2007 com mulheres em situação de vulnerabilidade, visa o aumento no nível de escolaridade, diminuição da exclusão econômica e conscientização dos direitos de cidadão. O objetivo geral do trabalho foi compreender a percepção das participantes das duas primeiras turmas acerca do PMF. Em específico foi preciso identificar interpretações sobre inserção e participação nas atividades e detectar ações para melhor aplicabilidade. O trabalho se caracterizou como um estudo de caso exploratório com abordagem qualitativa, a partir da interpretação de depoimentos orais de 26 mulheres. Foi aplicado o método indutivo para se chegar a uma conclusão ampla sobre a eficácia do Projeto. Concluiu-se que entre os pontos positivos estavam discussões sobre cidadania para uma melhor consciência de direitos e deveres, e a aprovação das atividades. Contudo, os resultados também apontaram pontos críticos de melhoria, sugeridos com bastante propriedade pelas participantes.

  19. The generation of post noon F3 layers over the dip equatorial location of Thiruvananthapuram- A new perspective

    Science.gov (United States)

    Mridula, N.; Pant, Tarun Kumar

    2018-05-01

    In the present paper, occurrence of post noon F3 layers over Thiruvananthapuram (8.5°N; 77°E; dip latitude ∼ 1.5 °N), a dip equatorial station in India have been investigated. F3 layers that occur beyond 13 IST and as observed using ground based ionosonde, for the years 2004-2008 have been studied. Our analysis shows that post noon F3 layers occur mostly on CEJ days around 16 IST to 18 IST. It is found that the time of the ionospheric E-region electric field reversal as inferred from collocated ground based magnetometer observations plays a crucial role in the generation of post noon F3 layers. In fact an early reversal of electric field emerged to be the necessary condition for the formation of post noon F3 layers. A time delay of three to 4 h is observed between the electric field reversal and the formation of F3 layer. It is proposed that this early reversal causes enhanced ionization over dip equatorial region, providing an additional ion drag to the flow of thermospheric zonal wind. This leads to accumulation of more ionization and neutrals culminating in the generation of post noon F3 layers as in the case of pre noon F3 layers. These results reveal that the generation of post noon F3 layers over the dip equatorial region is a natural consequence of the variability associated with the spatio-temporal evolution of EIA and prevailing thermospheric and ionospheric dynamics, and adds a new perspective to the present understanding.

  20. Gravidez em adolescentes de uma unidade municipal de saúde em Fortaleza - Ceará Embarazo en adolescentes de una unidad municipal de salud en Fortaleza - Ceára (Brasil Pregnancy in adolescents of a city health unit in Fortaleza - Ceára (Brazil

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    Conceição de Maria Arcanjo

    2007-09-01

    Full Text Available Estudo quantitativo com objetivo de conhecer a gravidez na adolescência em unidade municipal de saúde, Fortaleza-CE. A amostra foi composta por 40 adolescentes. Como resultado, encontramos: 20% estavam entre 14 e 15 anos, 7,5% eram solteiras, 5%, casadas, 7,5% tinham união consensual; 60% tinham entre 16 e 17 anos, 5% eram solteiras, 7,5%, casadas, 47,5% tinham união consensual; 20% tinham entre 18 e 19 anos, 12,5% eram solteiras, 7,5%, casadas. E, ainda: 17,5% tiveram experiência do aborto, 50% deixaram de estudar por causa da gravidez, 25% não gostam de estudar, 20% não acham importante, 57,5% iniciaram pré-natal com três a quatro meses de gestação, 80% dos pais assumem a paternidade, 70% delas continuavam morando com a família, 70% receberam orientações sobre gravidez, 60% não utilizavam método contraceptivo, 37,5% desejam ser dona de casa, 27,5% não têm planos para o futuro. Concluímos que as adolescentes engravidam em faixa etária precoce, não percebem os riscos inerentes à gravidez e deixam de lado o estudo, lazer, vaidade ou mesmo perspectivas para o futuro. A nosso ver, o estudo pode contribuir para o redimensionamento do trabalho com adolescentes na unidade local do estudo.Estudio cuantitativo con el objetivo de conocer el embarazo en la adolescencia de una unidad municipal de salud, Fortaleza CE (Brasil. La muestra fue compuesta por 40 adolescentes. Como resultado encontramos: 20% estaban entre 14-15 años, 7,5% solteras, 5% casadas, 7,5% unión consensual; 60% entre 16 y 17años, 5% solteras, 7,5% casadas, 47,5% unión consensual; 20% entre 18-19 años, 12,5% solteras, 7,5% casadas. Y todavía 17,5% tuvieran experiencia del aborto, 50% dejaron de estudiar debido el embarazo, 25% no les gusta estudiar, 20% no encuentra importante, 57,5% empezaron prenatal con tres a cuatro meses de la gestación, 80% de los padres asumen la paternidad, 70% continúan viviendo con la familia, 70% recibieran las orientaciones en el

  1. AVALIAÇÃO PRELIMINAR DA PARTICIPAÇÃO POPULAR NO PROCESSO DE ARBORIZAÇÃO URBANA NA CIDADE DE FORTALEZA (CE

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    Carlos Germano Ferreira Costa

    2014-12-01

    Full Text Available Normal 0 21 false false false PT-BR X-NONE X-NONE MicrosoftInternetExplorer4 Este trabalho analisa qualitativamente a opinião de 274 acadêmicos da Universidade Federal do Ceará sobre a participação popular no processo de implantação e manutenção da Arborização Urbana na cidade de Fortaleza-Ceará. O estudo foi conduzido a partir da avaliação do entrevistado, por um questionário realizado em Meio de 2007, indagando sobre participar de ações voluntárias para o plantio de árvores e manutenção da arborização urbana no município de Fortaleza, e busca avaliar os motivos que os levaria a envolver-se em ações desta natureza e procura identificar na ótica da população os desafios que a participação popular enfrenta no processo de tomada de decisão no município de Fortaleza-Ce. Os resultados analisados demonstram a influência do gênero e a falha de órgãos públicos em tomar vantagem da vontade de participação da população em participar de ações de Arborização Urbana. A questão de gênero é destacada no presente trabalho

  2. Budget Management Health System Only - SUS im Municipal Context: Analysis of Audit-SUS in PPA of Fortaleza and its Role in Social Control Strengthening

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    Lizziane Souza Queiroz Franco de Oliveira

    2016-10-01

    Full Text Available The budget planning is the duty of every manager and fundamental for the implementation of key policies such as health. To implement them, it’s necessary to control the provision of these services; hence the importance of the audit. This article intends to, through documentary and bibliographic research, analyzing quantitative and qulitatively budgetary forecasting and execution aimed at audit’s actions - SUS, provideds for PPA/2014-2017 and LOA-2014, both the city of Fortaleza, in order to ascertain whether the municipal management performs its expenditure aimed at encouraging good planning and provide to society an efficient public management and responsive to social control.

  3. The influence of business elements in the choice of consumers for popular brands: an investigation in the residential market of mineral water 20 liters in Fortaleza

    OpenAIRE

    Daniel Ribeiro AragÃo

    2007-01-01

    Esta dissertaÃÃo de Mestrado teve por objetivo avaliar o impacto das variÃveis mercadolÃgicas no processo de decisÃo de compra de marcas populares de Ãgua mineral na Embalagem 20 litros no mercado residencial de Fortaleza. Este estudo constatou que o crescimento destas marcas foi favorecido pelo surgimento de uma nova classe de consumidores que, impulsionados por fatores sÃcio-econÃmicos como o aumento do poder aquisitivo e a estabilidade econÃmica passaram a consumir Ãgua mineral. HÃ ainda o...

  4. Participação social no campo da cultura e disputas simbólicas nas políticas culturais para o circo em Fortaleza (CE

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    Jocastra Holanda Bezerra

    2016-01-01

    Full Text Available The article seeks to understand the dynamics of social participation in the field of culture. It seeks to reflect about the plurality of identities and self-representations present in the circus segment, realizing how these are articulated, integrated or do not connect with each other in the sphere of participation in the cultural policies of the city of Fortaleza, Ceará. To reflect on these questions, we analyzed the discourses and the participation of agents of the circus sector on two occasions: in the construction of the proposal of the Municipal School of Circus and the formulation of the Sectorial Circus Plan in the city.

  5. La enseñanza de la química desde el modelo integrado de aprendizaje profundo, MIAP. Fortalezas y debilidades

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    Johanna Camacho

    2009-09-01

    Full Text Available En este análisis crítico del Modelo Integrado de Aprendizaje Profundo, MIAP, se presentan algunos fundamentos teóricos del modelo, a partir de lo trabajado por el equipo de la Facultad de Educación de la Universidad Católica de Chile. Posteriormente, se reconocen algunas fortalezas y debilidades para la enseñanza de la química y se presentan algunos aspectos que pueden considerarse con el fin de mejorar las prácticas educativas de los profesores de química de enseñanza básica y media.

  6. Aspectos entomológicos e epidemiológicos das epidemias de dengue em Fortaleza, Ceará, 2001-2012

    OpenAIRE

    Oliveira, Rhaquel de Morais Alves Barbosa; Araújo, Fernanda Montenegro de Carvalho; Cavalcanti, Luciano Pamplona de Góes

    2018-01-01

    Resumo Objetivo: descrever os aspectos entomológicos e epidemiológicos das epidemias de dengue ocorridas em Fortaleza, Ceará, Brasil, de 2001 a 2012. Métodos: estudo descritivo com dados dos Sistemas de Informação de Agravos de Notificação (Sinan), de Informações Hospitalares (SIH), do Programa de Febre Amarela e Dengue (2001-2009), do Programa Nacional de Controle da Dengue (2010-2012) e Levantamento Rápido do Índice de Infestação de Aedes aegypti, referentes aos anos quando a incidência...

  7. Inovações sustentáveis e vantagem competitiva : um estudo qualitativo no setor hoteleiro em Fortaleza-CE

    OpenAIRE

    Cardoso, Márcia Lopes

    2014-01-01

    A presente pesquisa tem por objetivo analisar como a adoção de inovações visando à sustentabilidade influencia a obtenção de vantagem competitiva das empresas do setor hoteleiro de Fortaleza. Para a construção do arcabouço teórico foram utilizados autores clássicos, como Barbieri, Gallouj, Porter, Schumpeter, Tidd, Bessant e Pavitt, entre outros; e periódicos internacionais atuais. O estudo adotou o modelo conceitual proposto Chen, Lai e Wen (2006) e Hansen, Grosse-Dunker e...

  8. La práctica de actividad física entre los adolescentes de las escuelas públicas del estado en Fortaleza (Brasil)

    OpenAIRE

    Marta Maria Coelho Damasceno; Roberto Wagner Junior Freire de Freitas; Ana Roberta Vilarouca da Silva; Paulo César de Almeida; Miguel Nasser Hissa

    2009-01-01

    El objetivo del estudio fue el de conocer los hábitos cotidianos, relacionados a la práctica de actividad física, mostrados por adolescentes de escuelas públicas de Fortaleza – Brasil. Estudio transversal en el cual participaron 720 estudiantes pertenecientes a doce escuelas públicas estatales, cuya edad variaba entre 14 y 19 años y de ambos sexos. Los datos se recogieron durante los meses de febrero y marzo de 2006, a través de entrevista estructurada. Además, se verificó peso y altura y se ...

  9. The influence of oceanographic conditions on the spatial and temporal patterns of Pleuronectiforms larvae (Teleostei in the equatorial Atlantic Ocean

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    Paulo de Oliveira Mafalda Junior

    Full Text Available ABSTRACT In this study, we analyzed the composition, distribution and abundance of Pleuronectiform larvae in relation to abiotic factors (temperature and salinity and biotic factors (phytoplanktonic and zooplanktonic biomass in the equatorial Atlantic Ocean. The working hypothesis was that the composition and distribution pattern of Pleuronectiform larvae species present differences between the areas studied according to the hydrographical environment/factors analyzed. Ichthyoplankton was collected during Period: 1 (August - October 1995, 2 (January - April 1997, 3 (April - July 1998 and 4 (September - December 2000, in the equatorial Atlantic Ocean. We examined 562 Bongo-net (500 μm samples that contained 719 Pleuronectiform larvae belonging to three families: Bothidae (Bothus ocellatus and Engyophrys senta, Paralichthyidae (Syacium papillosum, Citharichthys spilopterus and Citharichthys sp. and Cynoglossidae (Symphurus sp.. The Pleuronectiform larvae accounted for 4% of total fish larvae and occurred at 37% of the oceanographic stations. B. ocellatus was the species with the highest relative abundance (70%, the greatest value occurring during Period 3 (77%, whereas the lowest relative abundance (57% was recorded in Period 1. S. papillosum was the species presenting the second highest relative abundance (14%, with higher values during periods 1 and 4. The results demonstrated that environmental factors influence the distribution and abundance of Pleuronectiform larvae so that each species occurs in a more favourable period and place for spawning and growth. B. ocellatus was related to warmer waters and greater phytoplanktonic and zooplanktonic biomass, while S. papillosum occurred in saltier waters and at lower temperatures.

  10. Guidelines for Learning Stations.

    Science.gov (United States)

    Fehrle, Carl C.; Schulz, Jolene

    Guidelines for designing and planning learning stations for pupils at the elementary grade level include suggestions on how to develop a station that will be successful in meeting the learners' needs. Instructions for the use of tapes at a station and matching pupils with stations are given, as are guidelines on classroom arrangement and record…

  11. Longitudinal Variation of the Lunar Tide in the Equatorial Electrojet

    Science.gov (United States)

    Yamazaki, Yosuke; Stolle, Claudia; Matzka, Jürgen; Siddiqui, Tarique A.; Lühr, Hermann; Alken, Patrick

    2017-12-01

    The atmospheric lunar tide is one known source of ionospheric variability. The subject received renewed attention as recent studies found a link between stratospheric sudden warmings and amplified lunar tidal perturbations in the equatorial ionosphere. There is increasing evidence from ground observations that the lunar tidal influence on the ionosphere depends on longitude. We use magnetic field measurements from the CHAMP satellite during July 2000 to September 2010 and from the two Swarm satellites during November 2013 to February 2017 to determine, for the first time, the complete seasonal-longitudinal climatology of the semidiurnal lunar tidal variation in the equatorial electrojet intensity. Significant longitudinal variability is found in the amplitude of the lunar tidal variation, while the longitudinal variability in the phase is small. The amplitude peaks in the Peruvian sector (˜285°E) during the Northern Hemisphere winter and equinoxes, and in the Brazilian sector (˜325°E) during the Northern Hemisphere summer. There are also local amplitude maxima at ˜55°E and ˜120°E. The longitudinal variation is partly due to the modulation of ionospheric conductivities by the inhomogeneous geomagnetic field. Another possible cause of the longitudinal variability is neutral wind forcing by nonmigrating lunar tides. A tidal spectrum analysis of the semidiurnal lunar tidal variation in the equatorial electrojet reveals the dominance of the westward propagating mode with zonal wave number 2 (SW2), with secondary contributions by westward propagating modes with zonal wave numbers 3 (SW3) and 4 (SW4). Eastward propagating waves are largely absent from the tidal spectrum. Further study will be required for the relative importance of ionospheric conductivities and nonmigrating lunar tides.

  12. New Measurements Of Jupiter's Equatorial Region In Visible Wavelengths

    Science.gov (United States)

    Rojas, Jose; Arregi, J.; García-Melendo, E.; Barrado-Izagirre, N.; Hueso, R.; Gómez-Forrellad, J. M.; Pérez-Hoyos, S.; Sanz-Requena, J. F.; Sánchez-Lavega, A.

    2010-10-01

    We have studied the equatorial region of Jupiter, between 15ºS and 15ºN, on Cassini ISS images obtained during the Jupiter flyby at the end of 2000 and on HST images acquired in May and July 2008. We have found significant longitudinal variations in the intensity of the 6ºN eastward jet, up to 60 m s-1 in Cassini and HST observations. In the HST case we found that these longitudinal variations are associated to different cloud morphology. Photometric and radiative transfer analysis of the cloud features used as tracers in HST images shows that there is only a small height difference, no larger than 0.5 - 1 scale heights at most, between the slow ( 100 m s-1) and fast ( 150 m s-1) moving features. This suggests that speed variability at 6ºN is not dominated by vertical wind shears and we propose that Rossby wave activity is the responsible for the zonal variability. After removing this variability we found that Jupiter's equatorial jet is actually symmetric relative to the equator with two peaks of 140 - 150 m s-1 located at latitudes 6ºN and 6ºS and at a similar pressure level. We also studied a large, long-lived feature called the White Spot (WS) located at 6ºS that turns to form and desapear. The internal flow field in the White Spot indicates that it is a weakly rotating quasi-equatorial anticyclone relative to the ambient meridionally sheared flow. Acknowledgements: This work was supported by the Spanish MICIIN AYA2009-10701 with FEDER and Grupos Gobierno Vasco IT-464-07.

  13. Discovery Of A Rossby Wave In Jupiter's South Equatorial Region

    Science.gov (United States)

    Simon-Miller, Amy A.; Choi, D. S.; Rogers, J. H.; Gierasch, P. J.

    2012-01-01

    A detailed study of the chevron-shaped dark spots on the strong southern equatorial wind jet near 7.5 deg S planetographic latitude shows variations in velocity with longitude and time. The chevrons move with velocities near the maximum wind jet velocity of approx.140 m/s, as deduced by the history of velocities at this latitude and the magnitude of the symmetric wind jet near 7 deg N latitude. Their repetitive nature is consistent with an inertia-gravity wave (n = 75-100) with phase speed up to 25 m/s, relative to the local flow, but the identity of this wave mode is not well constrained. However, high spatial resolution movies from Cassini images show that the chevrons oscillate in latitude with a approx.7-day period. This oscillating motion has a wavelength of approx.20 deg and a speed of approx.100 m/s, following a pattern similar to that seen in the Rossby wave plumes of the North Equatorial Zone, and possibly reinforced by it, though they are not perfectly in phase. The transient anticyclonic South Equatorial Disturbance (SED) may be a similar wave feature, but moves at slower velocity. All data show chevron latitude variability, but it is unclear if this Rossby wave is present during other epochs, without time series movies that fully delineate it. In the presence of multiple wave modes, the difference in dominant cloud appearance between 7 deg N and 7.5 deg S may be due to the presence of the Great Red Spot, either through changes in stratification and stability or by acting as a wave boundary.

  14. Propagation of EMIC triggered emissions toward the magnetic equatorial plane

    Science.gov (United States)

    Grison, B.; Santolik, O.; Pickett, J. S.; Omura, Y.; Engebretson, M. J.; Dandouras, I. S.; Masson, A.; Decreau, P.; Cornilleau-Wehrlin, N.

    2011-12-01

    EMIC triggered emissions are observed close to the equatorial plane of the magnetosphere at locations where EMIC waves are commonly observed: close to the plasmapause region and in the dayside magnetosphere close to the magnetopause. Their overall characteristics (frequency with time dispersion, generation mechanism) make those waves the EMIC analogue of rising frequency whistler-mode chorus emissions. In our observations the Poynting flux of these emissions is usually clearly arriving from the equatorial region direction, especially when observations take place at more than 5 degrees of magnetic latitude. Simulations have also confirmed that the conditions of generation by interaction with energetic ions are at a maximum at the magnetic equator (lowest value of the background magnetic field along the field line). However in the Cluster case study presented here the Poynting flux of EMIC triggered emissions is propagating toward the equatorial region. The large angle between the wave vector and the background magnetic field is also unusual for this kind of emission. The rising tone starts just above half of the He+ gyrofrequency (Fhe+) and it disappears close to Fhe+. At the time of detection, the spacecraft magnetic latitude is larger than 10 degrees and L shell is about 4. The propagation sense of the emissions has been established using two independent methods: 1) sense of the parallel component of the Poynting flux for a single spacecraft and 2) timing of the emission detections at each of the four Cluster spacecraft which were in a relatively close configuration. We propose here to discuss this unexpected result considering a reflection of this emission at higher latitude.

  15. La investigación en comunicación en España: Debilidades, amenazas, fortalezas y oportunidades

    Directory of Open Access Journals (Sweden)

    2018-07-01

    Full Text Available Este artículo presenta las estrategias metodológicas, los resultados y un análisis crítico del proyecto de investigación nacional MapCom «El sistema de investigación en España sobre prácticas sociales de Comunicación, Mapa de Proyectos, Grupos, Líneas, Objetos de estudio y Métodos». Se ofrecen los resultados obtenidos de las dos primeras fases del proyecto de investigación en el conjunto del país y muestra total seleccionada de los objetos de estudio, tesis doctorales y proyectos de investigación. Se realiza un análisis específico de variables descriptivas asociadas a género, objetos de estudio, financiación, metodologías más presentes, así como un análisis comparado entre proyectos de investigación y tesis doctorales desde una perspectiva de los objetos de estudio y las metodologías implementadas. El trabajo se contextualiza con un análisis comparativo de la investigación en Ciencias Sociales y Humanidades en el mismo periodo analizado en España. Se hace un análisis de las debilidades, amenazas, fortalezas y oportunidades que han sido detectadas y se ofrecen recomendaciones orientadas a desarrollar un «Plan de Acción Estratégico para la Investigación Competitiva en Comunicación». El análisis concluye con la constatación de las semejanzas entre los objetos de estudio, pero también de las diferencias entre los objetivos de las investigaciones cuando se comparan tesis doctorales y proyectos de investigación en el periodo analizado. Se lleva a cabo igualmente un análisis comparativo de las 12 universidades con mayor relevancia en España, con el objeto de detectar diferencias, similitudes y patrones de investigación en grupos de investigación, doctorados asociados y universidades.

  16. Equatorial Ionospheric Anomaly (EIA) and comparison with IRI model during descending phase of solar activity (2005-2009)

    Science.gov (United States)

    Kumar, Sanjay; Singh, A. K.; Lee, Jiyun

    2014-03-01

    The ionospheric variability at equatorial and low latitude region is known to be extreme as compared to mid latitude region. In this study the ionospheric total electron content (TEC), is derived by analyzing dual frequency Global Positioning System (GPS) data recorded at two stations separated by 325 km near the Indian equatorial anomaly region, Varanasi (Geog latitude 25°, 16/ N, longitude 82°, 59/ E, Geomagnetic latitude 16°, 08/ N) and Kanpur (Geog latitude 26°, 18/ N, longitude 80°, 12/ E, Geomagnetic latitude 17°, 18/ N). Specifically, we studied monthly, seasonal and annual variations as well as solar and geomagnetic effects on the equatorial ionospheric anomaly (EIA) during the descending phase of solar activity from 2005 to 2009. It is found that the maximum TEC (EIA) near equatorial anomaly crest yield their maximum values during the equinox months and their minimum values during the summer. Using monthly averaged peak magnitude of TEC, a clear semi-annual variation is seen with two maxima occurring in both spring and autumn. Results also showed the presence of winter anomaly or seasonal anomaly in the EIA crest throughout the period 2005-2009 only except during the deep solar minimum year 2007-2008. The correlation analysis indicate that the variation of EIA crest is more affected by solar activity compared to geomagnetic activity with maximum dependence on the solar EUV flux, which is attributed to direct link of EUV flux on the formation of ionosphere and main agent of the ionization. The statistical mean occurrence of EIA crest in TEC during the year from 2005 to 2009 is found to around 12:54 LT hour and at 21.12° N geographic latitude. The crest of EIA shifts towards lower latitudes and the rate of shift of the crest latitude during this period is found to be 0.87° N/per year. The comparison between IRI models with observation during this period has been made and comparison is poor with increasing solar activity with maximum difference during

  17. Support for equatorial anisotropy of Earth's inner-inner core from seismic interferometry at low latitudes

    Science.gov (United States)

    Wang, Tao; Song, Xiaodong

    2018-03-01

    Anisotropy of Earth's inner core provides a key role to understand its evolution and the Earth's magnetic field. Recently, using autocorrelations from earthquake's coda, we found an equatorial anisotropy of the inner-inner core (IIC), in apparent contrast to the polar anisotropy of the outer-inner core (OIC). To reduce the influence of the polar anisotropy and reduce possible contaminations from the large Fresnel zone of the PKIKP2 and PKIIKP2 phases at low frequencies, we processed coda noise of large earthquakes (10,000-40,000 s after magnitude ≥7.0) from stations at low latitudes (within ±35°) during 1990-2013. Using a number of improved procedures of both autocorrelation and cross-correlation, we extracted 52 array-stacked high-quality empirical Green's functions (EGFs), an increase of over 60% from our previous study. The high-quality data allow us to measure the relative arrival times by automatic waveform cross correlation. The results show large variation (∼10.9 s) in the differential times between the PKIKP2 and PKIIKP2 phases. The estimated influence of the Fresnel zone is insignificant (core history, change of geomagnetic field, and a proto-inner core.

  18. Modeling and Predicting the Daily Equatorial Plasma Bubble Activity Using the Tiegcm

    Science.gov (United States)

    Carter, B. A.; Retterer, J. M.; Yizengaw, E.; Wiens, K. C.; Wing, S.; Groves, K. M.; Caton, R. G.; Bridgwood, C.; Francis, M. J.; Terkildsen, M. B.; Norman, R.; Zhang, K.

    2014-12-01

    Describing and understanding the daily variability of Equatorial Plasma Bubble (EPB) occurrence has remained a significant challenge over recent decades. In this study we use the Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM), which is driven by solar (F10.7) and geomagnetic (Kp) activity indices, to study daily variations of the linear Rayleigh-Taylor (R-T) instability growth rate in relation to the measured scintillation strength at five longitudinally distributed stations. For locations characterized by generally favorable conditions for EPB growth (i.e., within the scintillation season for that location) we find that the TIEGCM is capable of identifying days when EPB development, determined from the calculated R-T growth rate, is suppressed as a result of geomagnetic activity. Both observed and modeled upward plasma drift indicate that the pre-reversal enhancement scales linearly with Kp from several hours prior, from which it is concluded that even small Kp changes cause significant variations in daily EPB growth. This control of Kp variations on EPB growth prompted an investigation into the use of predicted Kp values from the Wing Kp model over a 2-month equinoctial campaign in 2014. It is found that both the 1-hr and 4-hr predicted Kp values can be reliably used as inputs into the TIEGCM to forecast the EPB growth conditions during scintillation season, when daily EPB variability is governed by the suppression of EPBs on days with increased, but not necessarily high, geomagnetic activity.

  19. The study of equatorial plasma bubble during January to April 2012 over Kolhapur (India

    Directory of Open Access Journals (Sweden)

    Parashram T. Patil

    2016-05-01

    Full Text Available Over 53 nights of all sky airglow imager data collected during January-April 2012 from the low latitude station Kolhapur (16.68°N, 74.26°E; 10.6°N dip latitude have been analyzed to study the F-region dynamics through the imaging of OI 630 nm emission line. The observed night airglow data were supported by the ionosonde measurements from Tirunelveli (8.7°N, 77.8°E; 0.51°N dip latitude. Well defined magnetic field aligned depletions were observed during the observation period. Out of 53 nights, 40 nights exhibited the occurrence of north-south aligned equatorial plasma bubbles. These plasma bubbles were found moving towards east with drift speed in range between 70 to 200 m s-1. We have analyzed the zonal drift velocity variation and relation of bubble occurrence with the base height of the ionosphere together with the effects of the geomagnetic Ap and solar flux F10.7 cm index in its first appearance.

  20. Thailand low and equatorial F 2-layer peak electron density and comparison with IRI-2007 model

    Science.gov (United States)

    Wichaipanich, N.; Supnithi, P.; Tsugawa, T.; Maruyama, T.

    2012-06-01

    Ionosonde measurements obtained at two Thailand ionospheric stations, namely Chumphon (10.72°N, 99.37°E, dip 3.0°N) and Chiang Mai (18.76°N, 98.93°E, dip 12.7°N) are used to examine the variation of the F 2-layer peak electron density ( N m F 2) which is derived from the F 2-layer critical frequency, f o f 2. Measured data from September 2004 to August 2005 (a period of low solar activity) are analyzed based on the diurnal and seasonal variation and then compared with IRI-2007 model predictions. Our results show that, in general, the diurnal and seasonal variations of the N m F 2 predicted by the IRI (URSI and CCIR options) model show a feature generally similar to the observed N m F 2. Underestimation mostly occurs in all seasons except during the September equinox and the December solstice at Chumphon, and the September equinox and the March equinox at Chiang Mai, when they overestimate those measured. The best agreement between observation and prediction occurs during the pre-sunrise to post-sunrise hours. The best agreement of the %PD values of both the options occurs during the March equinox, while the agreement is the worst during the September equinox. The N m F 2 values predicted by the CCIR option show a smaller range of deviation than the N m F 2 values predicted by the URSI option. During post-sunset to morning hours (around 21:00-09:00 LT), the observed N m F 2 at both stations are almost identical for the periods of low solar activity. However, during daytime, the observed N m F 2 at Chumphon is lower than that at Chiang Mai. The difference between these two stations can be explained by the equatorial ionospheric anomaly (EIA). These results are important for future improvements of the IRI model for N m F 2 over Southeast Asia, especially for the areas covered by Chumphon and Chiang Mai stations.

  1. Equatorial density depletions observed at 840 km during the great magnetic storm of March 1989

    International Nuclear Information System (INIS)

    Greenspan, M.E.; Rasmussen, C.E.; Burke, W.J.; Abdu, M.A.

    1991-01-01

    Early on March 14, 1989, a thermal plasma probe on the Defense Meteorological Satellite Program (DMSP) F9 spacecraft detected extensive and dramatic decreases in the ion density at 840 km, near 2130 LT, during two consecutive transequatorial passes over South America. The order of magnitude decreases in the ion density extended more than 4,000 km along the satellite track. The depletions were accompanied by upward and westward plasma drifts, both in excess of 100 m/s. Their onsets and terminations were marked by extremely sharp density gradients. A partial depletion was detected over the eastern Pacific during the following orbit. The DMSP F9 ground track passed slightly west of a Brazilian total electron content (TEC) station and two Brazilian ionosondes during the first depletion encounter. The TEC fell far below normal during the night of March 13-14. The ionosonde measurements indicate that, in the hour after sunset, before DMSP passed through the depletions, the F 2 layer rose rapidly and disappeared, but at the time of the first depletion encounter, h m F 2 was decreasing over one of the stations. The authors develop a phenomenological model reconciling DMSP F8, F9 and ground-based measurements. The calculations show that rapid upward drifts sustained for several hours can produce depletions in the equatorial ion density with sharp gradients at their high-latitude boundaries, consistent with the data. They discuss possible contributing mechanisms for generating these upward drifts. These include direct penetration of the magnetospheric electric field to low latitudes, the electric fields generated by the disturbance dynamo, and the effects of conductivity gradients near the dusk terminator and the South Atlantic anomaly

  2. Vertical Rise Velocity of Equatorial Plasma Bubbles Estimated from Equatorial Atmosphere Radar Observations and High-Resolution Bubble Model Simulations

    Science.gov (United States)

    Yokoyama, T.; Ajith, K. K.; Yamamoto, M.; Niranjan, K.

    2017-12-01

    Equatorial plasma bubble (EPB) is a well-known phenomenon in the equatorial ionospheric F region. As it causes severe scintillation in the amplitude and phase of radio signals, it is important to understand and forecast the occurrence of EPBs from a space weather point of view. The development of EPBs is presently believed as an evolution of the generalized Rayleigh-Taylor instability. We have already developed a 3D high-resolution bubble (HIRB) model with a grid spacing of as small as 1 km and presented nonlinear growth of EPBs which shows very turbulent internal structures such as bifurcation and pinching. As EPBs have field-aligned structures, the latitude range that is affected by EPBs depends on the apex altitude of EPBs over the dip equator. However, it was not easy to observe the apex altitude and vertical rise velocity of EPBs. Equatorial Atmosphere Radar (EAR) in Indonesia is capable of steering radar beams quickly so that the growth phase of EPBs can be captured clearly. The vertical rise velocities of the EPBs observed around the midnight hours are significantly smaller compared to those observed in postsunset hours. Further, the vertical growth of the EPBs around midnight hours ceases at relatively lower altitudes, whereas the majority of EPBs at postsunset hours found to have grown beyond the maximum detectable altitude of the EAR. The HIRB model with varying background conditions are employed to investigate the possible factors that control the vertical rise velocity and maximum attainable altitudes of EPBs. The estimated rise velocities from EAR observations at both postsunset and midnight hours are, in general, consistent with the nonlinear evolution of EPBs from the HIRB model.

  3. Saneamento bÃsico em Ãreas de vulnerabilidade socioeconÃmica: uma avaliaÃÃo do Programa de Drenagem Urbana de Fortaleza (DRENURB)

    OpenAIRE

    Camilla Paiva Viana

    2015-01-01

    O presente trabalho tem como objetivo estudar as polÃticas pÃblicas de saneamento bÃsico e, em especial, avaliar o Programa de Drenagem Urbana de Fortaleza (Drenurb), verificando quais foram os efeitos provocados por suas aÃÃes no perÃodo de 2010 a 2012. O Drenurb corresponde à primeira iniciativa sistematizada da Prefeitura Municipal de Fortaleza para a captaÃÃo das Ãguas pluviais em meio urbano, visando a minorar os transtornos causados pela incidÃncia de alagamentos. Para a realizaÃÃo dest...

  4. La medida de las fortalezas psicológicas en adolescentes (VIA-Youth): relación con clima familiar, psicopatología y bienestar psicológico

    OpenAIRE

    Giménez Hernández, Montserrat

    2011-01-01

    El presente estudio tiene como principal objetivo profundizar en el estudio de las características de los adolescentes. Para ello, en el eje de la investigación, se analizarán las propiedades psicometrícas del VIA-Y (Values in Action for Young), un cuestionario dirigido a evaluar las fortalezas humanas diseñado por Peterson y Park (2003) con una muestra de adolescentes españoles y se estudiarán las relaciones entre estas fortalezas y distintos conceptos psicológicos relacionado...

  5. Helmintos parasitos das espécies Scomberomorus cavalla (Cuvier e Scomberomorus maculatus (Mitchill do litoral cearense: Contracaecum fortalezae sp. n. (Nematoda, Ascaridoidea

    Directory of Open Access Journals (Sweden)

    Vera Lucia M. Klein

    1973-01-01

    Full Text Available De nematódeos encontrados parasitando estômago, intestinos delgado e grosso de Scomberomorus cavalla (Cuv. e Scomberomorus maculatus (Mitch. o autor propões para o gênero Contracaecum Railliet et Henry, 1912 uma nova espécie, C. fortalezae sp. n., que mais se aproxima de C. clavatum (Rud., 1809 Baylis, 1920 dela se diferenciando por possuir espículos desiguais, um curto ovejetor, útero opistodelfo, ovos menores e por apresentar em todos exemplares estudados ceco intestinal curto e ceco esofagiano longo.In this paper the author proposes a new species of the genus Contracaecum Railliet et Henry, 1912. Of the species under Contracaecum, Contracaecum clavatum (Rudolphi, 1809 Baylis, 1920 is the nearest to Contracaecum fortalezae sp. n. differing from the latter by the following aspects: The males have unequal spicules. The females have a short ovijector and parallel uteri directed backward and the eggs are smaller. In both sexes the intestinal cecum is always short and the ventricular posterior appendix is always long, while Contracaecum clavatum presents these structures in an inverse way, considering the lenght of them. Besides, the thorn-like formations at the posterior end of the body are different.

  6. Aspectos entomológicos e epidemiológicos das epidemias de dengue em Fortaleza, Ceará, 2001-2012

    Directory of Open Access Journals (Sweden)

    Rhaquel de Morais Alves Barbosa Oliveira

    2018-02-01

    Full Text Available Resumo Objetivo: descrever os aspectos entomológicos e epidemiológicos das epidemias de dengue ocorridas em Fortaleza, Ceará, Brasil, de 2001 a 2012. Métodos: estudo descritivo com dados dos Sistemas de Informação de Agravos de Notificação (Sinan, de Informações Hospitalares (SIH, do Programa de Febre Amarela e Dengue (2001-2009, do Programa Nacional de Controle da Dengue (2010-2012 e Levantamento Rápido do Índice de Infestação de Aedes aegypti, referentes aos anos quando a incidência da doença superou o percentil 75%. Resultados: De 2001 a 2012 foram notificados 194.446 casos suspeitos de dengue. Os anos epidêmicos foram: 2001, 2006, 2008, 2011 e 2012. Houve aumento progressivo da incidência (587,0/100 mil hab. [2001] e 1.561,1/100 mil hab [2012], com cocirculação de até três sorotipos e elevada infestação vetorial, principalmente em depósitos para armazenar água. Conclusão: após longo período de circulação do vírus em Fortaleza, a dengue permanece como importante problema de saúde, com casos graves e alta letalidade.

  7. Espaço Público e Shopping Center na Cidade Contemporânea: Novos Significados do North Shopping em Fortaleza - CE

    Directory of Open Access Journals (Sweden)

    Tiago Estevam Gonçalves

    2012-03-01

    Full Text Available Iniciar uma reflexão acerca da cidade atual nos remete à necessidade de construirmos uma análise sobre os shopping centers como espaços que tem atraído um fluxo considerável da população, ocasionando mudanças na relação dos citadinos com os espaços públicos. Nesta perspectiva, temos como objetivo analisar o North Shopping, localizado na cidade de Fortaleza, como um espaço de uso popular onde as camadas de menor poder aquisitivo podem adentrar e usufruir de seus atributos. Imbuídos de tal finalidade nosso aporte teórico fundamentou-se em Pintaudi (1992, Dantas (1995, Silva (1996 Lefebvre (1999, Carlos (2001, Gomes (2002 e Serpa (2007. Conclui-se que na cidade de Fortaleza, o North Shopping é um verdadeiro simulacro da realidade, substituindo as experiências cotidianas dos espaços públicos, configurando-se, assim, a supervalorização do espaço privado que se traveste de público tendo repercussões na nova urbanidade fortalezense.

  8. Avaliação da qualidade de amostras comerciais de leite de janaguba (Himatanthus drasticus (Mart. Plumel em Fortaleza – Ceará

    Directory of Open Access Journals (Sweden)

    F.P. SOARES

    Full Text Available RESUMO Os fitoterápicos à base de leite de janaguba (Himatanthus drasticus (Mart. Plumel, usados para o tratamento de câncer, úlcera gástrica e outras doenças, são muito vendidos em mercados públicos de Fortaleza (CE. No entanto, registros mencionam que é comum a troca deste leite por látex de mangabeira (Hancornia speciosa Gomes. O trabalho objetivou avaliar a qualidade físico-química, química e microbiológica de amostras comerciais do leite de janaguba. Dez amostras comerciais foram adquiridas de um mercado de Fortaleza; quatro amostras autênticas de látex de janaguba foram obtidas da chapada do Araripe e uma amostra de látex de mangabeira foi obtida em Paracuru (CE. Foram determinados o aspecto geral, densidade, pH, resíduo seco, volume de sedimentação, perfil cromatográfico e qualidade microbiológica das amostras. Os resultados mostraram elevada contaminação microbiológica nas preparações comerciais e adulteração em seis destas amostras, o que aponta a urgente implantação de uma efetiva farmacovigilância dos fitoterápicos a fim de tornar seu consumo mais seguro e racional.

  9. El análisis de las fortalezas, oportunidades, debilidades y amenazas en un grupo de empresas del estado de Jalisco

    Directory of Open Access Journals (Sweden)

    Silvio Hernández Cotón

    2016-02-01

    Full Text Available Los procesos de planeación estratégica se convierten en esenciales para dirigir los cambios de la organización y proporcionan las condiciones en la toma de decisiones gerenciales. Los resultados aquí expuestos son parte del problema general abordado en la línea de investigación sobre el pensamiento estratégico de las empresas de Jalisco, desarrollado por el Departamento de Mercadotecnia y Negocios Internacionales del CUCEA, y se refieren a la identificación de las tendencias que puedan hallarse en las debilidades, amenazas, fortalezas, y oportunidades que se presentan ante las empresas.  Se analizan los resultados de la investigación, obtenidos en 30 empresas de Jalisco durante 2003 y 2004, comparándolos con los resultados obtenidos en otras 54 empresas de Jalisco en la investigación realizada en 2002, en las que se identificaron las cinco principales fortalezas, oportunidades, debilidades y amenazas de cada empresa, así como las coincidencias.

  10. Preface: The International Reference Ionosphere (IRI) at equatorial latitudes

    Science.gov (United States)

    Reinisch, Bodo; Bilitza, Dieter

    2017-07-01

    This issue of Advances in Space Research includes papers that report and discuss improvements of the International Reference Ionosphere (IRI). IRI is the international standard for the representation of the plasma in Earth's ionosphere and recognized as such by the Committee on Space Research (COSPAR), the International Union of Radio Science (URSI), the International Telecommunication Union (ITU), and the International Standardization Organization (ISO). As requested, particularly by COSPAR and URSI, IRI is an empirical model relying on most of the available and reliable ground and space observations of the ionosphere. As new data become available and as older data sources are fully exploited the IRI model undergoes improvement cycles to stay as close to the existing data record as possible. The latest episode of this process is documented in the papers included in this issue using data from the worldwide network of ionosondes, from a few of the incoherent scatter radars, from the Alouette and ISIS topside sounders, and from the Global Navigation Satellite Systems (GNSS). The focus of this issue is on the equatorial and low latitude region that is of special importance for ionospheric physics because it includes the largest densities and steep density gradients in the double hump latitudinal structure, the Equatorial Ionization Anomaly (EIA), which is characteristic for this region.

  11. The Plasma Environment Associated With Equatorial Ionospheric Irregularities

    Science.gov (United States)

    Smith, Jonathon M.; Heelis, R. A.

    2018-02-01

    We examine the density structure of equatorial depletions referred to here as equatorial plasma bubbles (EPBs). Data recorded by the Ion Velocity Meter as part of the Coupled Ion Neutral Dynamics Investigation (CINDI) aboard the Communication/Navigation Outage Forecasting System (C/NOFS) satellite are used to study EPBs from 1600 to 0600 h local time at altitudes from 350 to 850 km. The data are taken during the 7 years from 2008 to 2014, more than one half of a magnetic solar cycle, that include solar minimum and a moderate solar maximum. Using a rolling ball algorithm, EPBs are identified by profiles in the plasma density, each having a depth measured as the percent change between the background and minimum density (ΔN/N). During solar moderate activity bubbles observed in the topside postsunset sector are more likely to have large depths compared to those observed in the topside postmidnight sector. Large bubble depths can be observed near 350 km in the bottomside F region in the postsunset period. Conversely at solar minimum the distribution of depths is similar in the postsunset and postmidnight sectors in all longitude sectors. Deep bubbles are rarely observed in the topside postsunset sector and never in the bottomside above 400 km in altitude. We suggest that these features result from the vertical drift of the plasma for these two solar activity levels. These drift conditions affect both the background density in which bubbles are embedded and the growth rate of perturbations in the bottomside where bubbles originate.

  12. {sup 239}Pu and {sup 240}Pu inventories and {sup 240}Pu/{sup 239}Pu atom ratios in the equatorial Pacific Ocean water column

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, Masatoshi, E-mail: myamada@cc.hirosaki-u.ac.jp [Department of Radiation Chemistry, Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori 036-8564 (Japan); Zheng, Jian [Research Center for Radiation Protection, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555 (Japan)

    2012-07-15

    The {sup 239+240}Pu concentrations and {sup 240}Pu/{sup 239}Pu atom ratios were determined by alpha spectrometry and inductively coupled plasma mass spectrometry for seawater samples from two stations, one at the equator and the other in the equatorial South Pacific. To better understand the fate of Pu isotopes, this study dealt with the contribution of the close-in fallout Pu from the Pacific Proving Grounds (PPG) in water columns of the Pacific Ocean. The {sup 239}Pu, {sup 240}Pu and {sup 239+240}Pu inventories over the depth interval 0-3000 m at the equator station were 10.4, 8.9 and 19.3 Bq m{sup -2}, respectively. Further, no noticeable difference was observed in {sup 239}Pu, {sup 240}Pu and {sup 239+240}Pu inventories over the depth interval 0-3000 m between the two stations. The total {sup 239+240}Pu inventories were significantly higher than the expected cumulative deposition density of global fallout. Water column {sup 239+240}Pu inventories measured in this study were lower than those reported for comparable stations in the Geochemical Ocean Sections Study, indicating that these inventories have been decreasing at average rates of 0.89 {+-} 0.07 and 0.16 {+-} 0.07 Bq m{sup -2} yr{sup -1} at the equator and equatorial South Pacific stations, respectively, from 1973 to 1990. The obtained {sup 240}Pu/{sup 239}Pu atom ratios were higher than the mean global fallout ratio of 0.18. These high atom ratios proved the existence of close-in tropospheric fallout Pu from the PPG in the Marshall Islands. The {sup 239+240}Pu inventories originating from the close-in fallout in the entire water column were estimated to be 11.1 Bq m{sup -2} at the equator station and 7.1 Bq m{sup -2} at the equatorial South Pacific Ocean station, and the relative percentages of close-in fallout Pu were 40% at the former and 34% at the latter. A significant amount of close-in fallout Pu originating from the PPG has been transported to deep layers below the 1000 m depth in the equatorial

  13. Fast-PPP assessment in European and equatorial region near the solar cycle maximum

    Science.gov (United States)

    Rovira-Garcia, Adria; Juan, José Miguel; Sanz, Jaume

    2014-05-01

    The Fast Precise Point Positioning (Fast-PPP) is a technique to provide quick high-accuracy navigation with ambiguity fixing capability, thanks to an accurate modelling of the ionosphere. Indeed, once the availability of real-time precise satellite orbits and clocks is granted to users, the next challenge is the accuracy of real-time ionospheric corrections. Several steps had been taken by gAGE/UPC to develop such global system for precise navigation. First Wide-Area Real-Time Kinematics (WARTK) feasibility studies enabled precise relative continental navigation using a few tens of reference stations. Later multi-frequency and multi-constellation assessments in different ionospheric scenarios, including maximum solar-cycle conditions, were focussed on user-domain performance. Recently, a mature evolution of the technique consists on a dual service scheme; a global Precise Point Positioning (PPP) service, together with a continental enhancement to shorten convergence. A end to end performance assessment of the Fast-PPP technique is presented in this work, focussed in Europe and in the equatorial region of South East Asia (SEA), both near the solar cycle maximum. The accuracy of the Central Processing Facility (CPF) real-time precise satellite orbits and clocks is respectively, 4 centimetres and 0.2 nanoseconds, in line with the accuracy of the International GNSS Service (IGS) analysis centres. This global PPP service is enhanced by the Fast-PPP by adding the capability of global undifferenced ambiguity fixing thanks to the fractional part of the ambiguities determination. The core of the Fast-PPP is the capability to compute real-time ionospheric determinations with accuracies at the level or better than 1 Total Electron Content Unit (TECU), improving the widely-accepted Global Ionospheric Maps (GIM), with declared accuracies of 2-8 TECU. This large improvement in the modelling accuracy is achieved thanks to a two-layer description of the ionosphere combined with

  14. Variability in the origins and pathways of Pacific Equatorial Undercurrent water

    NARCIS (Netherlands)

    Qin, Xuerong; Sen Gupta, Alex; Van Sebille, Erik

    2015-01-01

    The Pacific Equatorial Undercurrent (EUC) transports water originating from a number of distinct source regions, eastward across the Pacific Ocean. It is responsible for supplying nutrients to the productive eastern Equatorial Pacific Ocean. Of particular importance is the transport of iron by the

  15. A study on ionospheric scintillation near the EIA crest in relation to equatorial electrodynamics

    Science.gov (United States)

    Chatterjee, S.; Chakraborty, S. K.; Veenadhari, B.; Banola, S.

    2014-02-01

    Equatorial electrojet (EEJ) data, which are considered as a proxy index of equatorial electric field, are analyzed in conjunction with equatorial ionosonde, total electron content (TEC) and scintillation data near the equatorial ionization anomaly (EIA) crest for the equinoctial months of high solar activity years (2011-2012) to identify any precursor index of postsunset evolution of equatorial electron density irregularities and subsequent occurrence of scintillation near the northern EIA crest. Only geomagnetically quiet and normal electrojet days are considered. The diurnal profiles of EEJ on the scintillation days exhibit a secondary enhancement in the afternoon to presunset hours following diurnal peaks. A series of electrodynamical processes conducive for generation of irregularities emerge following secondary enhancement of EEJ. Latitudinal profile of TEC exhibits resurgence in EIA structure around the postsunset period. Diurnal TEC profile near the EIA crest resembles postsunset secondary enhancement on the days with afternoon enhancement in EEJ. Occurrence of equatorial spread F and postsunset scintillation near the EIA crest seems to follow the secondary enhancement events in EEJ. Both the magnitude and duration of enhanced EEJ are found to be important for postsunset intensification of EIA structure and subsequent occurrence of equatorial irregularities. A critical value combining the two may be considered an important precursor for postsunset occurrence of scintillation near the EIA crest. The results are validated using archived data for the years 1989-1990 and explained in terms of modulation effects of enhanced equatorial fountain.

  16. Influence of biomass burning emissions on precipitation chemistry in the equatorial forests of Africa

    International Nuclear Information System (INIS)

    Lacaux, J.P.; Lefeivre, B.; Delmas, R.A.; Cros, B.; Andreae, M.O.

    1991-01-01

    As part of the DESCAFE program (Dynamics and Chemistry of the Atmosphere in Equatorial Forest), measurements of precipitation chemistry were made at two sampling sites of the equatorial forest in the Republic of Congo. The measurements were made in order to identify and compare atmospheric sources of gases and particles (mainly biogenic sources and emissions from burning vegetation)

  17. Reference Climatological Stations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Reference Climatological Stations (RCS) network represents the first effort by NOAA to create and maintain a nationwide network of stations located only in areas...

  18. Streamflow Gaging Stations

    Data.gov (United States)

    Department of Homeland Security — This map layer shows selected streamflow gaging stations of the United States, Puerto Rico, and the U.S. Virgin Islands, in 2013. Gaging stations, or gages, measure...

  19. Fire Stations - 2007

    Data.gov (United States)

    Kansas Data Access and Support Center — Fire Station Locations in Kansas Any location where fire fighters are stationed at or based out of, or where equipment that such personnel use in carrying out their...

  20. Hammond Bay Biological Station

    Data.gov (United States)

    Federal Laboratory Consortium — Hammond Bay Biological Station (HBBS), located near Millersburg, Michigan, is a field station of the USGS Great Lakes Science Center (GLSC). HBBS was established by...

  1. Water Level Station History

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Images contain station history information for 175 stations in the National Water Level Observation Network (NWLON). The NWLON is a network of long-term,...

  2. Weather Radar Stations

    Data.gov (United States)

    Department of Homeland Security — These data represent Next-Generation Radar (NEXRAD) and Terminal Doppler Weather Radar (TDWR) weather radar stations within the US. The NEXRAD radar stations are...

  3. Big Game Reporting Stations

    Data.gov (United States)

    Vermont Center for Geographic Information — Point locations of big game reporting stations. Big game reporting stations are places where hunters can legally report harvested deer, bear, or turkey. These are...

  4. Ocean Station Vessel

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Ocean Station Vessels (OSV) or Weather Ships captured atmospheric conditions while being stationed continuously in a single location. While While most of the...

  5. Fire Stations - 2009

    Data.gov (United States)

    Kansas Data Access and Support Center — Fire Stations in Kansas Any location where fire fighters are stationed or based out of, or where equipment that such personnel use in carrying out their jobs is...

  6. Newport Research Station

    Data.gov (United States)

    Federal Laboratory Consortium — The Newport Research Station is the Center's only ocean-port research facility. This station is located at Oregon State University's Hatfield Marine Science Center,...

  7. Perfil dos níveis pressóricos e glicêmicos de funcionários de instituições públicas hospitalares de Fortaleza-Ceará: profile of the public hospitals' staff in the city of Fortaleza-CE Perfil de los niveles de glucosa e de tensión arterial de trabajadores de hospitales públicos de Fortaleza-CE Glucose and blood pressure level

    Directory of Open Access Journals (Sweden)

    Marta Maria Coelho Damasceno

    2006-08-01

    Full Text Available Objetivou-se identificar o perfil dos níveis pressóricos e glicêmicos de funcionários de dois hospitais públicos de Fortaleza-CE. Aferiram-se os valores em 506 sujeitos utilizando glicosímetro e esfigmomanômetro aneróide, de setembro de 2003 a abril de 2004. As idades variaram entre 18 e 71 anos; 79,6% eram mulheres; 49,3% pré-hipertensos; 19,5% hipertensos; 7,9% com glicemia > 140 mg/dl; 38,5% com alto risco para DM2. A PA foi mais elevada nos homens (pEl objetivo fué identificar el perfil de los niveles de glucosa y de tensión arterial de trabajadores de dos hospitales públicos de Fortaleza-CE. Se tomarón los valores en 506 personas con el Sistema de Medición de Glucosa en sangre y esfigmomanómetro aneroide, de septiembre de 2003 a abril de 2004. Las edades cambiaron entre 18 a 71 años; 79,6% mujeres; 49,3% tenian prehipertensión arterial; 19,5% hipertensión arterial; 7,9% con glucosa mas de 140 mg/dl; 38,5% con alto riesgo para DM2. La tensión arterial fue más elevada en hombres (pIt was objectified to identify the profile of the glucose and blood pressure in two public hospitals' staff in Fortaleza - CE . From September 2003 to April 2004, were checked 506 individuals with Blood Glucose Monitoring System and aneroid sphygmomanometer. The results showed that the individuals were between 18 and 71 years old; 79,6% were women; 49,3 were classified as prehypertensive; 19.5% as hypertensive; 7.9% had glucose level above 140mg/dl and 38.5% had high chances of developing DM2. High blood pressure was higher in men (p<0.001; the illiterates/literates ( p=0.031 and the married and widowed (p=0.029. This high blood pressure was associated with age (p<0.001; As to the glucose levels, a statistically meaningful association with age and high glucose (p=0.006 was verified. It follows that the studied population, especially the elderly and low educated, need educational actions which help to change their life habits and prevent illnesses

  8. Implantação do Programa Saúde na escola em Fortaleza-CE: atuação de equipe da Estratégia Saúde da Família Implantación del Programa de Salud Escolar en Fortaleza-CE: desempeño de equipo de la Estrategia Salud de la Familia School Health Program implementation in Fortaleza-CE: performance of the Family Health Strategy staff

    Directory of Open Access Journals (Sweden)

    Lindelvania Matias de Santiago

    2012-12-01

    Full Text Available Este trabalho relata a experiência da implantação do Programa Saúde na Escola (PSE por uma equipe da Estratégia Saúde da Família (ESF em uma escola pública em Fortaleza-CE. As atividades desenvolvidas incluíram seminário de implantação do PSE com os docentes e integrantes da ESF, oficinas com os estudantes, avaliação clinica e odontológica dos adolescentes e entrega de Cadernetas de Saúde do Adolescente. A implantação do PSE permitiu aos profissionais de saúde a percepção do seu papel social de educador e possibilitou aos adolescentes maior contato com a equipe da ESF. A aproximação entre escola e ESF é fundamental para ajudar os adolescentes a transformarem a informação científica em comportamentos saudáveis.Este artículo relata la experiencia de implementación del Programa de Salud Escolar (PSE por un equipo de la Estrategia de Salud de la Familia (ESF en una escuela pública en Fortaleza-CE, Brasil. Las actividades incluyeron seminario de despliegue del PSE con los maestros y los miembros de la ESF, talleres con los estudiantes, la evaluación clínica y dental de los adolescentes y la entrega de folletos de Salud del Adolescente. La aplicación del PSE permitió a los profesionales de salud a darse cuenta de su papel social como educadores y permitió a los adolescentes un mayor contacto con el personal de la ESF. El acercamiento entre la escuela y el FSE es crucial para ayudar a los adolescentes a transformar el conocimiento científico en comportamientos saludables.This work reports the experience of implementation of the School Health Program (PSE by a team from the Family Health Strategy (FHS in a public school in Fortaleza-CE , Brazil. The activities included conference about the deployment of the PSE with teachers and members of the FHS, workshops with students, clinical and dental assessment for adolescents and delivery of Booklets of Adolescent Health. The implementation of the PSE allowed health

  9. Madden-Julian Oscillation (MJO) Signal over Kototabang, West Sumatera Based on the Mini Automatic Weather Station (MAWS) Data Analysis Using the Wavelet Technique

    Science.gov (United States)

    Hermawan, E.

    2018-04-01

    This study is mainly concerned an application of Mini Automatic Weather Station (MAWS) at Kototabang, West Sumatera nearby the location of an Equatorial Atmosphere Radar (EAR) side. We are interest to use this data to investigate the propagation of the Madden-Julian Oscillation (MJO). We examined of daily MAWS data for 3 years observations started from January 2001 to Mei 2004. By applying wavelet analysis, we found the MJO at Kototabang have 32 days oscillations as shown in Fig.1 below. In this study, we concentrate just for local mechanis only. We will show in this paper that at the phase of the MJO with a dipole structure to the convection anomalies, there is enhanced tropical convection over the eastern Indian Ocean and reduced convection over the western Pacific. Over the equatorial western Indian Ocean, the equatorial Rossby wave response to the west of the enhanced convection includes a region of anomalous surface divergence associated with the anomalous surface westerlies and pressure ridge. This tends to suppress ascent in the boundary layer and shuts off the deep convection, eventually leading to a convective anomaly of the opposite sign. Over the Indonesian sector, the equatorial Kelvin wave response to the east of the enhanced convection includes a region of anomalous surface convergence into the anomalous equatorial surface easterlies and pressure trough, which will tend to favour convection in this region. The Indonesian sector is also influenced by an equatorial Rossby wave response (of opposite sign) to the west of the reduced convection over the western Pacific, which also has a region of anomalous surface convergence associated with its anomalous equatorial surface easterlies and pressure trough. Hence, convective anomalies of either sign tend to erode themselves from the west and initiate a convective anomaly of opposite sign via their equatorial Rossby wave response, and expand to the east via their equatorial Kelvin wave response.

  10. Seasonal-longitudinal variability of equatorial plasma bubbles

    Directory of Open Access Journals (Sweden)

    W. J. Burke

    2004-09-01

    Full Text Available We compare seasonal and longitudinal distributions of more than 8300 equatorial plasma bubbles (EPBs observed during a full solar cycle from 1989-2000 with predictions of two simple models. Both models are based on considerations of parameters that influence the linear growth rate, γRT, of the generalized Rayleigh-Taylor instability in the context of finite windows of opportunity available during the prereversal enhancement near sunset. These parameters are the strength of the equatorial magnetic field, Beq, and the angle, α, it makes with the dusk terminator line. The independence of α and Beq from the solar cycle phase justifies our comparisons.

    We have sorted data acquired during more than 75000 equatorial evening-sector passes of polar-orbiting Defense Meteorological Satellite Program (DMSP satellites into 24 longitude and 12 one-month bins, each containing ~250 samples. We show that: (1 in 44 out of 48 month-longitude bins EPB rates are largest within 30 days of when α=0°; (2 unpredicted phase shifts and asymmetries appear in occurrence rates at the two times per year when α≈0°; (3 While EPB occurrence rates vary inversely with Beq, the relationships are very different in regions where Beq is increasing and decreasing with longitude. Results (2 and (3 indicate that systematic forces not considered by the two models can become important. Damping by interhemispheric winds appears to be responsible for phase shifts in maximum rates of EPB occurrence from days when α=0°. Low EPB occurrence rates found at eastern Pacific longitudes suggest that radiation belt electrons in the drift loss cone reduce γRT by enhancing E-layer Pedersen conductances. Finally, we analyze an EPB event observed during a magnetic storm at a time and place where α≈-27°, to illustrate how electric-field penetration from

  11. Spread F – an old equatorial aeronomy problem finally resolved?

    Directory of Open Access Journals (Sweden)

    R. F. Woodman

    2009-05-01

    Full Text Available One of the oldest scientific topics in Equatorial Aeronomy is related to Spread-F. It includes all our efforts to understand the physical mechanisms responsible for the existence of ionospheric F-region irregularities, the spread of the traces in a night-time equatorial ionogram – hence its name – and all other manifestations of the same. It was observed for the first time as an abnormal ionogram in Huancayo, about 70 years ago. But only recently are we coming to understand the physical mechanisms responsible for its occurrence and its capricious day to day variability. Several additional techniques have been used to reveal the spatial and temporal characteristics of the F-region irregularities responsible for the phenomenon. Among them we have, in chronological order, radio star scintillations, trans-equatorial radio propagation, satellite scintillations, radar backscatter, satellite and rocket in situ measurements, airglow, total electron content techniques using the propagation of satellite radio signals and, recently, radar imaging techniques. Theoretical efforts are as old as the observations. Nevertheless, 32 years after their discovery, Jicamarca radar observations showed that none of the theories that had been put forward could explain them completely. The observations showed that irregularities were detected at altitudes that were stable according to the mechanisms proposed. A breakthrough came a few years later, again from Jicamarca, by showing that some of the "stable" regions had become unstable by the non-linear propagation of the irregularities from the unstable to the stable region of the ionosphere in the form of bubbles of low density plasma. A problem remained, however; the primary instability mechanism proposed, an extended (generalized Rayleigh-Taylor instability, was too slow to explain the rapid development seen by the observations. Gravity waves in the neutral background have been proposed as a seeding mechanism to

  12. Role of interannual Kelvin wave propagations in the equatorial Atlantic on the Angola Benguela Current system

    Science.gov (United States)

    Imbol Koungue, Rodrigue Anicet; Illig, Serena; Rouault, Mathieu

    2017-06-01

    The link between equatorial Atlantic Ocean variability and the coastal region of Angola-Namibia is investigated at interannual time scales from 1998 to 2012. An index of equatorial Kelvin wave activity is defined based on Prediction and Research Moored Array in the Tropical Atlantic (PIRATA). Along the equator, results show a significant correlation between interannual PIRATA monthly dynamic height anomalies, altimetric monthly Sea Surface Height Anomalies (SSHA), and SSHA calculated with an Ocean Linear Model. This allows us to interpret PIRATA records in terms of equatorial Kelvin waves. Estimated phase speed of eastward propagations from PIRATA equatorial mooring remains in agreement with the linear theory, emphasizing the dominance of the second baroclinic mode. Systematic analysis of all strong interannual equatorial SSHA shows that they precede by 1-2 months extreme interannual Sea Surface Temperature Anomalies along the African coast, which confirms the hypothesis that major warm and cold events in the Angola-Benguela current system are remotely forced by ocean atmosphere interactions in the equatorial Atlantic. Equatorial wave dynamics is at the origin of their developments. Wind anomalies in the Western Equatorial Atlantic force equatorial downwelling and upwelling Kelvin waves that propagate eastward along the equator and then poleward along the African coast triggering extreme warm and cold events, respectively. A proxy index based on linear ocean dynamics appears to be significantly more correlated with coastal variability than an index based on wind variability. Results show a seasonal phasing, with significantly higher correlations between our equatorial index and coastal SSTA in October-April season.

  13. CDIP Station Data Collection - All Stations

    Data.gov (United States)

    Scripps Institution of Oceanography, UC San Diego — The Coastal Data Information Program's station data collection consists of all publicly-released coastal environment measurements taken over the program's history, a...

  14. Observers in Kerr spacetimes. The ergoregion on the equatorial plane

    Energy Technology Data Exchange (ETDEWEB)

    Pugliese, D. [Silesian University in Opava, Faculty of Philosophy and Science, Institute of Physics, Opava (Czech Republic); Quevedo, H. [Universita di Roma ' ' La Sapienza' ' , Dipartimento di Fisica, Rome (Italy); Universidad Nacional Autonoma de Mexico, Instituto de Ciencias Nucleares, Mexico, DF (Mexico); Kazakh National University, Department of Theoretical and Nuclear Physics, Almaty (Kazakhstan)

    2018-01-15

    We perform a detailed analysis of the properties of stationary observers located on the equatorial plane of the ergosphere in a Kerr spacetime, including light-surfaces. This study highlights crucial differences between black hole and the super-spinner sources. In the case of Kerr naked singularities, the results allow us to distinguish between ''weak'' and ''strong'' singularities, corresponding to spin values close to or distant from the limiting case of extreme black holes, respectively. We derive important limiting angular frequencies for naked singularities. We especially study very weak singularities as resulting from the spin variation of black holes. We also explore the main properties of zero angular momentum observers for different classes of black hole and naked singularity spacetimes. (orig.)

  15. Seeding and layering of equatorial spread F by gravity waves

    International Nuclear Information System (INIS)

    Hysell, D.L.; Kelley, M.C.; Swartz, W.E.; Woodman, R.F.

    1990-01-01

    Studies dating back more than 15 years have presented evidence that atmospheric gravity waves play a role in initiating nighttime equatorial F region instabilities. This paper analyzes a spectabular spread F event that for the first time demonstrates a layering which, the authors argue, is controlled by a gravity wave effect. The 50-km vertical wavelength of a gravity wave which they have found is related theoretically to a plasma layering irregularity that originated at low altitudes and then was convected, intact, to higher altitudes. Gravity waves also seem to have determined bottomside intermediate scale undulations, although this fact is not as clear in the data. The neutral wind dynamo effect yields wave number conditions on the gravity wave's ability to modulate the Rayleigh-Taylor instaiblity process. Finally, after evaluating the gravity wave dispersion relation and spatial resonance conditions, we estimate the properties of the seeding wave

  16. Solar cycle signatures in the NCEP equatorial annual oscillation

    Science.gov (United States)

    Mayr, H. G.; Mengel, J. G.; Huang, F. T.; Nash, E. R.

    2009-08-01

    Our analysis of temperature and zonal wind data (1958 to 2006) from the National Center for Atmospheric Research (NCAR) reanalysis (Re-1), supplied by the National Centers for Environmental Prediction (NCEP), shows that the hemispherically symmetric 12-month equatorial annual oscillation (EAO) contains spectral signatures with periods around 11 years. Moving windows of 44 years show that, below 20 km, the 11-year modulation of the EAO is phase locked to the solar cycle (SC). The spectral features from the 48-year data record reveal modulation signatures of 9.6 and 12 years, which produce EAO variations that mimic in limited altitude regimes the varying maxima and minima of the 10.7 cm flux solar index. Above 20 km, the spectra also contain modulation signatures with periods around 11 years, but the filtered variations are too irregular to suggest that systematic SC forcing is the principal agent.

  17. Is there a hole in the topside, equatorial ionosphere?

    Directory of Open Access Journals (Sweden)

    D. Gallagher

    Full Text Available A paper in 2000 (Huba, 2000 found a depression in electron density in the topside ionosphere near the magnetic equator, based on the SAMI-2 physical ionospheric model. The model showed, for the first time, the formation of a hole in electron density in the altitude range 1500–2500 km at geomagnetic equatorial latitudes. The model produced the hole because of transhemispheric O+ flows that collisionally couple to H+, transporting it to lower altitudes, and thereby reducing the electron density at high altitudes. At that time and until now, no published observations have been reported to confirm or refute this numerical result. Recent, new analysis of Dynamics Explorer 1 Retarding Ion Mass Spectrometer measurements provides the first tentative experimental support for this model result. Keywords: Ionosphere, Topside, Magnetic equator, Plasmasphere

  18. Solar cycle signatures in the NCEP equatorial annual oscillation

    Directory of Open Access Journals (Sweden)

    H. G. Mayr

    2009-08-01

    Full Text Available Our analysis of temperature and zonal wind data (1958 to 2006 from the National Center for Atmospheric Research (NCAR reanalysis (Re-1, supplied by the National Centers for Environmental Prediction (NCEP, shows that the hemispherically symmetric 12-month equatorial annual oscillation (EAO contains spectral signatures with periods around 11 years. Moving windows of 44 years show that, below 20 km, the 11-year modulation of the EAO is phase locked to the solar cycle (SC. The spectral features from the 48-year data record reveal modulation signatures of 9.6 and 12 years, which produce EAO variations that mimic in limited altitude regimes the varying maxima and minima of the 10.7 cm flux solar index. Above 20 km, the spectra also contain modulation signatures with periods around 11 years, but the filtered variations are too irregular to suggest that systematic SC forcing is the principal agent.

  19. Combined radar observations of equatorial electrojet irregularities at Jicamarca

    Directory of Open Access Journals (Sweden)

    D. L. Hysell

    2007-03-01

    Full Text Available Daytime equatorial electrojet plasma irregularities were investigated using five distinct radar diagnostics at Jicamarca including range-time-intensity (RTI mapping, Faraday rotation, radar imaging, oblique scattering, and multiple-frequency scattering using the new AMISR prototype UHF radar. Data suggest the existence of plasma density striations separated by 3–5 km and propagating slowly downward. The striations may be caused by neutral atmospheric turbulence, and a possible scenario for their formation is discussed. The Doppler shifts of type 1 echoes observed at VHF and UHF frequencies are compared and interpreted in light of a model of Farley Buneman waves based on kinetic ions and fluid electrons with thermal effects included. Finally, the up-down and east-west asymmetries evident in the radar observations are described and quantified.

  20. The earth's equatorial principal axes and moments of inertia

    Science.gov (United States)

    Liu, H. S.; Chao, B. F.

    1991-01-01

    The earth's equatorial principal moments of inertia are given as A and B, where A is less than B, and the corresponding principal axes are given as a and b. Explicit formulas are derived for determining the orientation of a and b axes and the difference B - A using C(22) and S(22), the two gravitational harmonic coefficients of degree 2 and order 2. For the earth, the a axis lies along the (14.93 deg W, 165.07 deg E) diameter, and the b axis lies perpendicular to it along the (75.07 deg E, 104.93 deg W) diameter. The difference B - A is 7.260 x 10 to the -6th MR2. These quantities for other planets are contrasted, and geophysical implications are discussed.

  1. Ações de prevenção dos acidentes e violências em crianças e adolescentes, desenvolvidas pelo setor público de saúde de Fortaleza, Ceará, Brasil Measures developed by the public health system to prevent accidents and violence in children and adolescents in Fortaleza, Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Augediva Maria Jucá Pordeus

    2003-08-01

    Full Text Available Este artigo trata das ações de prevenção de acidentes e violências, desenvolvidas pelo setor público de saúde de Fortaleza, Estado do Ceará, Brasil. Originou-se da necessidade sentida pelas autoras diante das estatísticas de mortalidade por estas causas na infância e adolescência, que parecia não haver por parte do setor público de saúde ações de prevenção. Realizamos um levantamento junto aos gerentes das Coordenadorias de Saúde das seis Secretarias Executivas Regionais (SER, setores geográficos onde está organizada a rede de saúde de Fortaleza, por meio da aplicação de questionário. O levantamento mostrou que as ações desenvolvidas são pontuais, não existindo como política de saúde, visto que ocorrem na forma de campanhas, têm como foco principal a educação em saúde voltada para a prevenção do uso de álcool e outras drogas ilícitas, violência e acidentes domésticos e delinqüência juvenil. Apenas na SER-I existia parceria com outros setores nas atividades desenvolvidas. Concluímos que o setor público de saúde de Fortaleza, necessita incorporar em sua agenda a prevenção de acidentes e violências na infância e adolescência, utilizando a intersetorialidade e somando esforços para que o conhecimento até agora adquirido sobre a prevenção destes agravos se transforme em realidade.This article deals with measures developed by the public health system to prevent accidents and violence in children in Fortaleza, Ceará State, Brazil. The program resulted from the need perceived by the authors in light of statistics on mortality from external causes in childhood and adolescence and the fact that there was apparently no preventive action being taken by the public health system. We conducted a questionnaire-based survey of health administrators in the six Regional Executive Secretariats (SERs corresponding to the geographic districts in which the health system is divided in Fortaleza. According to the

  2. A Generalized Equatorial Model for the Accelerating Solar Wind

    Science.gov (United States)

    Tasnim, S.; Cairns, Iver H.; Wheatland, M. S.

    2018-02-01

    A new theoretical model for the solar wind is developed that includes the wind's acceleration, conservation of angular momentum, deviations from corotation, and nonradial velocity and magnetic field components from an inner boundary (corresponding to the onset of the solar wind) to beyond 1 AU. The model uses a solution of the time-steady isothermal equation of motion to describe the acceleration and analytically predicts the Alfvénic critical radius. We fit the model to near-Earth observations of the Wind spacecraft during the solar rotation period of 1-27 August 2010. The resulting data-driven model demonstrates the existence of noncorotating, nonradial flows and fields from the inner boundary (r = rs) outward and predicts the magnetic field B = (Br,Bϕ), velocity v = (vr,vϕ), and density n(r,ϕ,t), which vary with heliocentric distance r, heliolatitude ϕ, and time t in a Sun-centered standard inertial plane. The description applies formally only in the equatorial plane. In a frame corotating with the Sun, the transformed velocity v' and a field B' are not parallel, resulting in an electric field with a component Ez' along the z axis. The resulting E'×B'=E'×B drift lies in the equatorial plane, while the ∇B and curvature drifts are out of the plane. Together these may lead to enhanced scattering/heating of sufficiently energetic particles. The model predicts that deviations δvϕ from corotation at the inner boundary are common, with δvϕ(rs,ϕs,ts) comparable to the transverse velocities due to granulation and supergranulation motions. Abrupt changes in δvϕ(rs,ϕs,ts) are interpreted in terms of converging and diverging flows at the cell boundaries and centers, respectively. Large-scale variations in the predicted angular momentum demonstrate that the solar wind can drive vorticity and turbulence from near the Sun to 1 AU and beyond.

  3. A tropospheric ozone maximum over the equatorial Southern Indian Ocean

    Directory of Open Access Journals (Sweden)

    L. Zhang

    2012-05-01

    Full Text Available We examine the distribution of tropical tropospheric ozone (O3 from the Microwave Limb Sounder (MLS and the Tropospheric Emission Spectrometer (TES by using a global three-dimensional model of tropospheric chemistry (GEOS-Chem. MLS and TES observations of tropospheric O3 during 2005 to 2009 reveal a distinct, persistent O3 maximum, both in mixing ratio and tropospheric column, in May over the Equatorial Southern Indian Ocean (ESIO. The maximum is most pronounced in 2006 and 2008 and less evident in the other three years. This feature is also consistent with the total column O3 observations from the Ozone Mapping Instrument (OMI and the Atmospheric Infrared Sounder (AIRS. Model results reproduce the observed May O3 maximum and the associated interannual variability. The origin of the maximum reflects a complex interplay of chemical and dynamic factors. The O3 maximum is dominated by the O3 production driven by lightning nitrogen oxides (NOx emissions, which accounts for 62% of the tropospheric column O3 in May 2006. We find the contribution from biomass burning, soil, anthropogenic and biogenic sources to the O3 maximum are rather small. The O3 productions in the lightning outflow from Central Africa and South America both peak in May and are directly responsible for the O3 maximum over the western ESIO. The lightning outflow from Equatorial Asia dominates over the eastern ESIO. The interannual variability of the O3 maximum is driven largely by the anomalous anti-cyclones over the southern Indian Ocean in May 2006 and 2008. The lightning outflow from Central Africa and South America is effectively entrained by the anti-cyclones followed by northward transport to the ESIO.

  4. Observations of EMIC Triggered Emissions off the Magnetic Equatorial Plane

    Science.gov (United States)

    Grison, B.; Breuillard, H.; Santolik, O.; Cornilleau-Wehrlin, N.

    2016-12-01

    On 19/08/2005 Cluster spacecraft had their perigee close to the dayside of the Earth magnetic equatorial plane, at about 14 hours Magnetic Local Time. The spacecraft crossed the equator from the southern hemisphere toward the northern hemisphere. In the Southern hemisphere, at about -23° magnetic latitude (MLAT) and at distance of 5.25 Earth Radii from Earth, Cluster 3 observes an EMIC triggered emission between the He+ and the proton local gyrofrequencies. The magnetic waveform (STAFF instrument data) is transformed into the Fourier space for a study based on single value decomposition (SVD) analysis. The emission lasts about 30s. The emission frequency rises from 1Hz up to 1.9Hz. The emission polarization is left-hand, its coherence value is high and the propagation angle is field aligned (lower than 30º). The Poynting flux orientation could not be established. Based on previous study results, these properties are indicative of an observation in vicinity of the source region of the triggered emission. From our knowledge this is the first time that EMIC triggered emission are observed off the magnetic equator. In order to identify the source region we study two possibilities: a source region at higher latitudes than the observations (and particles orbiting in "Shabansky" orbits) and a source region close to the magnetic equatorial plane, as reported in previous studies. We propose to identify the source region from ray tracing analysis and to compare the observed propagation angle in several frequency ranges to the ray tracing results.

  5. Priority areas for large mammal conservation in Equatorial Guinea.

    Science.gov (United States)

    Murai, Mizuki; Ruffler, Heidi; Berlemont, Antoine; Campbell, Genevieve; Esono, Fidel; Agbor, Anthony; Mbomio, Domingo; Ebana, Agustín; Nze, Antonio; Kühl, Hjalmar S

    2013-01-01

    Hunting is one of the main driving forces behind large mammal density distribution in many regions of the world. In tropical Africa, urban demand for bushmeat has been shown to dominate over subsistence hunting and its impact often overrides spatial-ecological species characteristics. To effectively protect remaining mammal populations the main factors that influence their distribution need to be integrated into conservation area prioritisation and management plans. This information has been lacking for Río Muni, Equatorial Guinea, as prior studies have been outdated or have not systematically covered the continental region of the country. In this study we evaluated: 1) the relative importance of local vs. commercial hunting; 2) wildlife density of protected vs. non-protected areas; and 3) the importance of ecological factors vs. human influence in driving mammal density distribution in Río Muni. We adopted a systematic countrywide line transect approach with particular focus on apes and elephants, but also including other mammal species. For analysis of field data we used generalised linear models with a set of predictor variables representing ecological conditions, anthropogenic pressure and protected areas. We estimate that there are currently 884 (437-1,789) elephants and 11,097 (8,719-13,592) chimpanzees and gorillas remaining in Río Muni. The results indicate strong hunting pressures on both local and commercial levels, with roads demonstrating a negative impact on elephants and overall mammal body mass. Protected areas played no role in determining any of the mammal species distributions and significant human hunting signs were found inside these protected areas, illustrating the lack of environmental law enforcement throughout the country. Río Muni is currently under-represented in conservation efforts in Western Equatorial Africa, and we recommend a focus on cross-boundary conservation, in particular in the Monte Alén-Monts de Cristal and Río Campo

  6. Characteristics of Volcanic Stratospheric Aerosol Layer Observed by CALIOP and Ground Based Lidar at Equatorial Atmosphere Radar Site

    Science.gov (United States)

    Abo, Makoto; Shibata, Yasukuni; Nagasawa, Chikao

    2018-04-01

    We investigated the relation between major tropical volcanic eruptions in the equatorial region and the stratospheric aerosol data, which have been collected by the ground based lidar observations at at Equatorial Atmosphere Radar site between 2004 and 2015 and the CALIOP observations in low latitude between 2006 and 2015. We found characteristic dynamic behavior of volcanic stratospheric aerosol layers over equatorial region.

  7. Anomalous short period geomagnetic variations at two stations in Sri Lanka

    International Nuclear Information System (INIS)

    Kunaratnam, K.

    1986-08-01

    An analysis of the rates of change in the geomagnetic field components in the period range 20-600 sec recorded at Kondavil and Hikkaduwa, two stations in the equatorial electrojet belt near the northern and south western coasts respectively of Sri Lanka, shows anomalous variations. The results confirm induced current concentration in the Palk Strait and deflection of induced currents around the southerncoast of Sri Lanka postulated by earlier workers from observations of SSC and Bay events at Indian stations and from analogue and numerical model studies. At Kondavil, which is situated close to the geomagnetic equator, no appreciable difference in the night-time and day-time values of ΔZ/ΔH and ΔD/ΔH ratios was noticed while at Hikkaduwa, a station situated under the edge of the equatorial electrojet belt, a day-time enhancement of ΔZ/ΔH ratios was found at all periods in the observed range. An enhancement of the H component at Colombo over that at Hikkaduwa was also found at short periods, the enhancement being greater at day-time. The day-time enhancement in the ΔZ/ΔH ratios at Hikkaduwa and in the ratio of the H components at Colombo and Hikkaduwa could be due to the effect of the equatorial electrojet on the short period variations. (author)

  8. On the response of the equatorial and low latitude ionospheric regions in the Indian sector to the large magnetic disturbance of 29 October 2003

    Directory of Open Access Journals (Sweden)

    G. Manju

    2009-06-01

    Full Text Available The present paper investigates the response of the equatorial and low latitude ionosphere over the Indian longitudes to the events on 29 October 2003 using ionosonde data at Trivandrum (8.5° N (0.5° N geomagnetic, 77° E and SHAR (13.7° N (5.7° N geomagnetic, 80.2° E, ground-based magnetometer data from Trivandrum and Total Electron Content (TEC derived from GPS data at the locations of Ahmedabad (23° N (15° N geomagnetic, 72° E, Jodhpur (26.3° N (18.3° N geomagnetic, 73° E and Delhi (28° N (20° N geomagnetic, 77° E. Following the storm sudden commencement, the TEC at all the three stations showed an overall enhancement in association with episodes of inter-planetary electric field penetration. Interestingly, real ionospheric height profiles derived using the ionosonde data at both Trivandrum and SHAR showed significant short-term excursions and recoveries. In the post noon sector, these features are more pronounced over SHAR, an off equatorial station, than those over Trivandrum indicating the increased effects of neutral winds.

  9. Comparison of multifrequency equatorial scintillation - American and Pacific sectors

    Science.gov (United States)

    Livingston, R. C.

    1980-08-01

    In this paper we examine the severity of radio wave amplitude scintillation measured at two stations near the equator but far separated in longitude: Kwajelein, Marshall Islands (167 E), and Ancon, Peru (-77 E). The data used are long-term observations of the Defense Nuclear Agency (DNA) Wideband satellite signal intensity at VHF, UHF, and L band frequencies. The seasonal behavior of the scintillation at the two stations is similar; each shows a broad 8- to 9-month disturbed season centered about local summer. There is short-term variability in the scintillation occurrence statistics but no clear equinoctial maxima. Little difference is observed in the occurrence or severity of L band scintillation at the two stations, although a systematic difference in the frequency dependence of the scintillation produces significantly stronger VHF and UHF scintillation at Ancon. The VHF and UHF latitudinal distributions of scintillation are asymmetric about the geomagnetic equator at both stations.

  10. Probability Distribution Function of the Upper Equatorial Pacific Current Speeds

    National Research Council Canada - National Science Library

    Chu, Peter C

    2005-01-01

    ...), constructed from hourly ADCP data (1990-2007) at six stations for the Tropical Atmosphere Ocean project satisfies the two-parameter Weibull distribution reasonably well with different characteristics between El Nino and La Nina events...

  11. ²³⁹Pu and ²⁴⁰Pu inventories and ²⁴⁰Pu/²³⁹Pu atom ratios in the equatorial Pacific Ocean water column.

    Science.gov (United States)

    Yamada, Masatoshi; Zheng, Jian

    2012-07-15

    The (239+240)Pu concentrations and (240)Pu/(239)Pu atom ratios were determined by alpha spectrometry and inductively coupled plasma mass spectrometry for seawater samples from two stations, one at the equator and the other in the equatorial South Pacific. To better understand the fate of Pu isotopes, this study dealt with the contribution of the close-in fallout Pu from the Pacific Proving Grounds (PPG) in water columns of the Pacific Ocean. The (239)Pu, (240)Pu and (239+240)Pu inventories over the depth interval 0-3000 m at the equator station were 10.4, 8.9 and 19.3 Bq m(-2), respectively. Further, no noticeable difference was observed in (239)Pu, (240)Pu and (239+240)Pu inventories over the depth interval 0-3000 m between the two stations. The total (239+240)Pu inventories were significantly higher than the expected cumulative deposition density of global fallout. Water column (239+240)Pu inventories measured in this study were lower than those reported for comparable stations in the Geochemical Ocean Sections Study, indicating that these inventories have been decreasing at average rates of 0.89 ± 0.07 and 0.16 ± 0.07 Bq m(-2)yr(-1) at the equator and equatorial South Pacific stations, respectively, from 1973 to 1990. The obtained (240)Pu/(239)Pu atom ratios were higher than the mean global fallout ratio of 0.18. These high atom ratios proved the existence of close-in tropospheric fallout Pu from the PPG in the Marshall Islands. The (239+240)Pu inventories originating from the close-in fallout in the entire water column were estimated to be 11.1 Bq m(-2) at the equator station and 7.1 Bq m(-2) at the equatorial South Pacific Ocean station, and the relative percentages of close-in fallout Pu were 40% at the former and 34% at the latter. A significant amount of close-in fallout Pu originating from the PPG has been transported to deep layers below the 1000 m depth in the equatorial Pacific Ocean. Copyright © 2012 Elsevier B.V. All rights reserved.

  12. La ordenación territorial en el País Vasco. Debilidades, amenazas,fortalezas y oportunidades de la escala intermedia

    Directory of Open Access Journals (Sweden)

    Pedro J. Lozano Valencia

    2003-01-01

    Full Text Available La ordenación del territorio encuentra su razón de ser, en el País Vasco, a través de las Directrices de Ordenación y dos tipos diferentes de documentos: los Planes Territoriales Parciales y los Planes Territoriales Sectoriales. Una vez delimitadas las comarcas y los sectores estratégicos, se aplican dichos documentos. Con todo, se logra la coordinación de las Directivas europeas a escala superior, y los Planes y Normas Subsidiarias de Ordenación Urbana a una escala inferior o local. En medio quedan todas esas herramientas de ordenación mencionadas anteriormente, que conforman lo que se ha venido a definir como la escala intermedia. Ésta aparece como un marco muy apropiado para abordar las debilidades, amenazas, fortalezas y oportunidades que, en un horizonte de 16 a 20 años, presenta el territorio vasco

  13. Occurrence of imposex in Thais haemastoma: possible evidence of environmental contamination derived from organotin compounds in Rio de Janeiro and Fortaleza, Brazil

    Directory of Open Access Journals (Sweden)

    Fernandez Marcos Antonio

    2002-01-01

    Full Text Available There are indications that the widespread use of organotin compounds (TBT and TPT as antifoulings, as stabilizers in plastic and as pesticides, has severely affected several species of marine organisms. The most striking effect of TBT and TPT as hormonal disruptors is the development of male organs in females of gastropods, currently denominated imposex. This syndrome can lead to the sterilization and death of affected organisms. The present work gives an overview of the present state of knowledge on imposex occurrence and reports results of a survey conducted in Guanabara Bay, Rio de Janeiro and in several sites along the coast of Fortaleza, Ceará State. Different stages of imposex development were verified in this survey, however, the most prominent levels appeared associated to known spot sources of TBT and TPT.

  14. Vulnerabilidade social: transformaÃÃes no espaÃo urbano de Fortaleza no inÃcio do sÃculo XXI

    OpenAIRE

    Rachel Vieira de Araujo

    2015-01-01

    Estudos sobre vulnerabilidade social estÃo presentes em vÃrias metrÃpoles da AmÃrica Latina. Tais espaÃos sÃo permeados por desigualdades onde diferentes grupos sociais vivem em condiÃÃes precÃrias com dÃficit de infraestrutura e serviÃos e outros vivem em Ãtimas condiÃÃes, com elevados Ãndices educacionais, renda, infraestrutura e uma gama de serviÃos. O trabalho traz a discussÃo da vulnerabilidade social em Fortaleza no inÃcio do sÃculo XXI. Para isso à necessÃrio compreender como a expa...

  15. An empirical comparison of respondent-driven sampling, time location sampling, and snowball sampling for behavioral surveillance in men who have sex with men, Fortaleza, Brazil.

    Science.gov (United States)

    Kendall, Carl; Kerr, Ligia R F S; Gondim, Rogerio C; Werneck, Guilherme L; Macena, Raimunda Hermelinda Maia; Pontes, Marta Kerr; Johnston, Lisa G; Sabin, Keith; McFarland, Willi

    2008-07-01

    Obtaining samples of populations at risk for HIV challenges surveillance, prevention planning, and evaluation. Methods used include snowball sampling, time location sampling (TLS), and respondent-driven sampling (RDS). Few studies have made side-by-side comparisons to assess their relative advantages. We compared snowball, TLS, and RDS surveys of men who have sex with men (MSM) in Forteleza, Brazil, with a focus on the socio-economic status (SES) and risk behaviors of the samples to each other, to known AIDS cases and to the general population. RDS produced a sample with wider inclusion of lower SES than snowball sampling or TLS-a finding of health significance given the majority of AIDS cases reported among MSM in the state were low SES. RDS also achieved the sample size faster and at lower cost. For reasons of inclusion and cost-efficiency, RDS is the sampling methodology of choice for HIV surveillance of MSM in Fortaleza.

  16. PERFIL GINECO-OBSTÉTRICO E REALIZAÇÃO DO EXAME DE PREVENÇÃO POR PROSTITUTAS DE FORTALEZA

    Directory of Open Access Journals (Sweden)

    ANA IZABEL OLIVEIRA NICOLAU

    2008-01-01

    Full Text Available Estudio descriptivo, cuantitativo cuyo objetivo fue identificar el perfil ginecológico y obstétrico de prostitutas de Fortaleza-CE. Fueron entrevistadas 81 prostitutas del centro de Fortaleza, a través de un formulario de entrevista estructurado con cuestiones sobre su historia sexual y obstétrica, en octubre de 2005. Los datos fueron tabulados en el programa estadístico SPSS, versión 11.0 y analizados de acuerdo con la literatura, disponibles a través de las tablillas estadísticas. Se verificó iniciación sexual precoz, entre 13 y 15 años. La edad del primer ciclo menstrual coincidió con el inicio de la vida sexual en el 46,9% de la muestra. Se pudo observar que el 95,1% de las mujeres ya habían estado embarazadas y el 49,4% habían hecho aborto; el 95,1% habían realizado el examen de prevención de cáncer de cuello del útero, siendo que el 51,9% lo había realizado hacía menos de un año. Se concluyó que las prostitutas presentaron características ginecológicas y obstétricas preocupantes en lo que concierne a las DST/SIDA, el cáncer de cuello de útero y de mama, a pesar de confirmar acceso a los servicios de salud.

  17. PRODUÇÃO DO ESPAÇO URBANO: NORTH SHOPPING NA DINÂMICA DE NOVAS CENTRALIDADES EM FORTALEZA- CE

    Directory of Open Access Journals (Sweden)

    Tiago Estevam Gonçalves

    2011-04-01

    Full Text Available Esta pesquisa tem como objetivo analisar a formação das novas centralidades em Fortaleza e sua relação com os shopping centers, tendo como shopping em destaque: North Shopping (inaugurado em 1991, localizado na avenida Bezerra de Menezes . No campo metodológico, realizaram-se levantamentos bibliográficos sobre a formação novas centralidades, o processo de produção do espaço urbano fortalezense incentivado pelo setor terciário e shopping center que contribuíram para o entendimento da transformação da cidade, além disso, realizamos visitamos e entrevistas no Norh Shopping. Uma das primeiras áreas centrais a se desenvolver além do Centro tradicional foi a da Aldeota incentivada pelo Center Um (instalado em 1974, na avenida Santos Dumont. Desde a formação das primeiras novas centralidades até o período atual sempre existiu uma relação intrínseca entre estas com os shoppings. Estes equipamentos modernos (shoppings aparecem com novos espaços de consumo ou novos consumos de espaço que cria e recria novas formas para atrair as pessoas ao consumo, considerando o consumir como signo de felicidade. Nesta perspectiva podemos afirmar que as atividades terciárias e os equipamentos modernos de consumo atuam no crescimento e na organização do espaço urbano, assim geram uma dinâmica comercial em Fortaleza.

  18. “ELES NASCEM PARA MORRER”: UMA ANÁLISE PSICOSSOCIAL DA PROBLEMÁTICA DOS HOMICÍDIOS DE JOVENS EM FORTALEZA

    Directory of Open Access Journals (Sweden)

    João Paulo Pereira Barros

    2017-10-01

    Full Text Available Dados relativos à questão da violência urbana envolvendo jovens permitem considerar a escala de homicídios desse segmento um dos principais dispositivos de controle social de populações e territórios pauperizados e estigmatizados, tornando-se um dos principais desafios ético-político no cenário brasileiro. A cidade de Fortaleza dispõe de indicadores preocupantes no que concerne ao número de homicídios envolvendo segmentos juvenis, apresentando maior índice de homicídios na adolescência (IHA entre as capitais brasileiras. Diante disso, este estudo objetiva problematizar o fenômeno dos homicídios de jovens na cidade de Fortaleza sob o ponto de vista psicossocial, tomando-o como um analisador das implicações das relações de poder e dos modos de subjetivação contemporâneos no cotidiano das margens urbanas brasileiras. A problematização se desenvolverá em diálogos da Psicologia Social com autores como Foucault, Deleuze, Guattari e Agamben. São postos em análise processos de sujeição de juventudes pobres no Brasil pela sua associação com o risco e a violência, bem como os processos psicossociais produtores de jovens “indignos de vida” a quem se atribui a pecha de “envolvidos”.

  19. CONVECTIVE BURSTS AND THE COUPLING OF SATURN'S EQUATORIAL STORMS AND INTERIOR ROTATION

    International Nuclear Information System (INIS)

    Heimpel, Moritz; Aurnou, Jonathan M.

    2012-01-01

    Temporal variations of Saturn's equatorial jet and magnetic field hint at rich dynamics coupling the atmosphere and the deep interior. However, it has been assumed that rotation of the interior dynamo must be steady over tens of years of modern observations. Here we use a numerical convection model and scaling estimates to show how equatorial convective bursts can transfer angular momentum to the deeper interior. The numerical model allows angular momentum transfer between a fluid outer spherical shell and a rigid inner sphere. Convection drives a prograde equatorial jet exhibiting quasiperiodic bursts that fill the equatorial volume outside the tangent cylinder. For each burst strong changes in the equatorial surface velocity are associated with retrograde torque on the inner sphere. Our results suggest that Saturn's Great White Spot, a giant storm that was observed to fill the equatorial region in 1990, could mobilize a volume of fluid carrying roughly 15% of Saturn's moment of inertia. Conservation of angular momentum then implies that a 20% change in the equatorial jet angular velocity could change the average interior rotation rate by about 0.1%—roughly an order of magnitude less than the apparent rotation rate changes associated with Saturn's kilometric radio (SKR) signal. However, if the SKR signal originates outside the liquid metal core in a 'planetary tachocline' that separates the layer of fast zonal flow from the magnetically controlled and slowly convecting deep interior, then convective bursts can provide a possible mechanism for the observed ∼1% SKR changes.

  20. The streaming-trapped ion interface in the equatorial inner magnetosphere

    Science.gov (United States)

    Lin, J.; Horwitz, J. L.; Gallagher, D.; Pollock, C. J.

    1994-01-01

    Spacecraft measurements of core ions on L=4-7 field-lines typically show trapped ion distributions near the magnetic equator, and frequently indicate field-aligned ion streams at higher latitudes. The nature of the transition between them may indicate both the microphysics of hot-cold plasma interactions and overall consequences for core plasma evolution. We have undertaken a statistical analysis and characterization of this interface and its relation to the equatorial region of the inner magnetosphere. In this analysis, we have characterized such features as the equatorial ion flux anisotropy, the penetration of field-aligned ionospheric streams into the equatorial region, the scale of the transition into trapped ion populations, and the transition latitude. We found that most transition latitudes occur within 13 deg of the equator. The typical values of equatorial ion anisotropies are consistent with bi-Maxwellian temperature ratios of T(sub perpendicular)/T(sub parallel) in the range of 3-5. The latitudinal scales for the edges of the trapped ion populations display a rather strong peak in the 2-3 deg range. We also found that there is a trend for the penetration ratio, the anisotropy half width, and the transition scale length to decrease with a higher equatorial ion anisotropy. We may interpret these features in terms of Liouville mapping of equatorially trapped ions and the reflection of the incoming ionospheric ion streams from the equatorial potential peaks associated with such trapped ions.

  1. Non-Coop Station History

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Station history documentation for stations outside the US Cooperative Observer network. Primarily National Weather Service stations assigned WBAN station IDs. Other...

  2. Spatial relationship of 1-meter equatorial spread-F irregularities and depletions in total electron content

    International Nuclear Information System (INIS)

    Tsunoda, R.T.; Towle, D.M.

    1979-01-01

    An experiment was conducted at Kwajalein Atoll, Marshall Islands to investigate the spatial relationship of 1-m equatorial spread-F irregularities to total electron content (TEC) depletions. A high-power radar was operated (1) in a backscatter scan mode to spatially map the distribution of 1-m irregularities, and (2) in a dual-frequency, satellite-track mode to obtain the longitudinal TEC variations. We show that radar backscatter ''plumes'' found in the disturbed, nighttime equatorial ionosphere are longitudinally coincident with TEC depletions. We suggest that the TEC depletions are probably due to the presence of plasma ''bubbles'' in the equatorial F layer

  3. The physical and theoretical basis of solar-terrestrial relationships 1. Equatorial locations

    International Nuclear Information System (INIS)

    Njau, E.C.

    1988-07-01

    The theory of solar-terrestrial relationships developed earlier by the author is extended to incorporate expressions that represent the non-linear responses of the earth-atmosphere system to incoming solar radiation in a more detailed manner. Application of the extended theory to equatorial locations leads to new and interesting features that are consistent with past observations. It also predicts the existence of new oscillations in the equatorial atmosphere whose causative physical processes are given and explained. Non-equatorial locations are treated along similar lines in Part 2 of the series. (author). 44 refs

  4. Base Station Performance Model

    OpenAIRE

    Walsh, Barbara; Farrell, Ronan

    2005-01-01

    At present the testing of power amplifiers within base station transmitters is limited to testing at component level as opposed to testing at the system level. While the detection of catastrophic failure is possible, that of performance degradation is not. This paper proposes a base station model with respect to transmitter output power with the aim of introducing system level monitoring of the power amplifier behaviour within the base station. Our model reflects the expe...

  5. DEMETER Observations of Equatorial Plasma Depletions and Related Ionospheric Phenomena

    Science.gov (United States)

    Berthelier, J.; Malingre, M.; Pfaff, R.; Jasperse, J.; Parrot, M.

    2008-12-01

    DEMETER, the first micro-satellite of the CNES MYRIAD program, was launched from Baikonour on June 29, 2004 on a nearly circular, quasi helio-synchronous polar orbit at ~ 715 km altitude. The DEMETER mission focuses primarily on the search for a possible coupling between seismic activity and ionospheric disturbances as well as on the effects of natural phenomena such as tropospheric thunderstorms and man-made activities on the ionosphere. The scientific payload provides fairly complete measurements of the ionospheric plasma, energetic particles above ~ 70 keV, and plasma waves, up to 20 kHz for the magnetic and 3.3 MHz for the electric components. Several studies related to space weather and ionospheric physics have been conducted over the past years. Following a brief description of the payload and the satellite modes of operation, this presentation will focus on a set of results that provide a new insight into the physics of instabilities in the night-time equatorial ionosphere. The observations were performed during the major magnetic storm of November 2004. Deep plasma depletions were observed on several night-time passes at low latitudes characterized by the decrease of the plasma density by nearly 3 orders of magnitude relative to the undisturbed plasma, and a significant abundance of molecular ions. These features can be best interpreted as resulting from the rise of the F-layer above the satellite altitude over an extended region of the ionosphere. In one of the passes, DEMETER was operated in the Burst mode and the corresponding high resolution data allowed for the discovery of two unexpected phenomena. The first one is the existence of high intensity monochromatic wave packets at the LH frequency that develop during the decay phase of intense bursts of broadband LH turbulence. The broadband LH turbulence is triggered by whistlers emitted by lightning from atmospheric thunderstorms beneath the satellite. The second unexpected feature is the detection of a

  6. Amtrak Rail Stations (National)

    Data.gov (United States)

    Department of Transportation — Updated database of the Federal Railroad Administration's (FRA) Amtrak Station database. This database is a geographic data set containing Amtrak intercity railroad...

  7. Cooperative Station History Forms

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Various forms, photographs and correspondence documenting the history of Cooperative station instrumentation, location changes, inspections, and...

  8. An Analysis of Unseasonal Equatorial Plasma Bubbles in July 2014

    Science.gov (United States)

    Carter, B. A.; Currie, J. L.; Pradipta, R.; Groves, K. M.; Caton, R. G.; Yokoyama, T.

    2017-12-01

    In the equatorial ionosphere, the Raleigh-Taylor (RT) plasma instability in the post sunset region is known to cause plasma depletions, known as equatorial plasma bubbles (EPBs). These EPBs can have adverse effects on satellite-reliant technologies by causing scintillations in the phase and amplitude of Global Navigation Satellite System (GNSS) signals. The effect of EPBs on satellite-reliant technologies highlights a need for reliable forecasting of EPBs in the low-latitude regions, which requires a solid understanding of their climatology and daily variability. The climatology of EPB occurrence is known to correlate with the angle between the magnetic field and solar terminator. This angle controls the longitudinal E-region conductivity gradient across the day-night terminator, which influences the strength of the pre-reversal enhancement in the upward plasma drift, a dominant term in the linear RT growth rate. This relationship is well established from ground-based GNSS and satellite-based studies. However, reliable forecasts have not been developed by space weather forecasting agencies due to the lack of understanding of EPB daily variability. During July, EPB occurrence is small in the South-East Asia longitude sector due to the relatively large angle between the magnetic field and solar terminator. As a result, the pre-reversal enhancement in the upward plasma drift is typically low during this period, creating less favourable conditions for EPB growth. However, despite the typically low pre-reversal enhancement strength, this analysis reveals that July 2014 is not devoid of EPB events above South-East Asia. These unseasonal EPB events during July 2014 are studied in the context of the prevalently low solar and geomagnetic activity conditions. Given the lack of solar and geomagnetic control, the influence of the lower atmosphere on EPB generation (e.g., via atmospheric gravity wave seeding) is explored. These events provide a unique opportunity to investigate

  9. Priority areas for large mammal conservation in Equatorial Guinea.

    Directory of Open Access Journals (Sweden)

    Mizuki Murai

    Full Text Available Hunting is one of the main driving forces behind large mammal density distribution in many regions of the world. In tropical Africa, urban demand for bushmeat has been shown to dominate over subsistence hunting and its impact often overrides spatial-ecological species characteristics. To effectively protect remaining mammal populations the main factors that influence their distribution need to be integrated into conservation area prioritisation and management plans. This information has been lacking for Río Muni, Equatorial Guinea, as prior studies have been outdated or have not systematically covered the continental region of the country. In this study we evaluated: 1 the relative importance of local vs. commercial hunting; 2 wildlife density of protected vs. non-protected areas; and 3 the importance of ecological factors vs. human influence in driving mammal density distribution in Río Muni. We adopted a systematic countrywide line transect approach with particular focus on apes and elephants, but also including other mammal species. For analysis of field data we used generalised linear models with a set of predictor variables representing ecological conditions, anthropogenic pressure and protected areas. We estimate that there are currently 884 (437-1,789 elephants and 11,097 (8,719-13,592 chimpanzees and gorillas remaining in Río Muni. The results indicate strong hunting pressures on both local and commercial levels, with roads demonstrating a negative impact on elephants and overall mammal body mass. Protected areas played no role in determining any of the mammal species distributions and significant human hunting signs were found inside these protected areas, illustrating the lack of environmental law enforcement throughout the country. Río Muni is currently under-represented in conservation efforts in Western Equatorial Africa, and we recommend a focus on cross-boundary conservation, in particular in the Monte Alén-Monts de Cristal

  10. Snowball Earth termination by destabilization of equatorial permafrost methane clathrate.

    Science.gov (United States)

    Kennedy, Martin; Mrofka, David; von der Borch, Chris

    2008-05-29

    The start of the Ediacaran period is defined by one of the most severe climate change events recorded in Earth history--the recovery from the Marinoan 'snowball' ice age, approximately 635 Myr ago (ref. 1). Marinoan glacial-marine deposits occur at equatorial palaeolatitudes, and are sharply overlain by a thin interval of carbonate that preserves marine carbon and sulphur isotopic excursions of about -5 and +15 parts per thousand, respectively; these deposits are thought to record widespread oceanic carbonate precipitation during postglacial sea level rise. This abrupt transition records a climate system in profound disequilibrium and contrasts sharply with the cyclical stratigraphic signal imparted by the balanced feedbacks modulating Phanerozoic deglaciation. Hypotheses accounting for the abruptness of deglaciation include ice albedo feedback, deep-ocean out-gassing during post-glacial oceanic overturn or methane hydrate destabilization. Here we report the broadest range of oxygen isotope values yet measured in marine sediments (-25 per thousand to +12 per thousand) in methane seeps in Marinoan deglacial sediments underlying the cap carbonate. This range of values is likely to be the result of mixing between ice-sheet-derived meteoric waters and clathrate-derived fluids during the flushing and destabilization of a clathrate field by glacial meltwater. The equatorial palaeolatitude implies a highly volatile shelf permafrost pool that is an order of magnitude larger than that of the present day. A pool of this size could have provided a massive biogeochemical feedback capable of triggering deglaciation and accounting for the global postglacial marine carbon and sulphur isotopic excursions, abrupt unidirectional warming, cap carbonate deposition, and a marine oxygen crisis. Our findings suggest that methane released from low-latitude permafrost clathrates therefore acted as a trigger and/or strong positive feedback for deglaciation and warming. Methane hydrate

  11. 10Be/230Th ratios as proxy for particle flux in the equatorial Pacific ocean

    International Nuclear Information System (INIS)

    Anderson, R.F.; Fleisher, M.Q.; Kubik, P.W.; Suter, M.

    1997-01-01

    Particulate 10 Be/ 230 Th ratios collected by sediment traps in the central equatorial Pacific Ocean exhibit a positive correlation with particle flux, but little or no correlation with particle composition. (author) 1 fig., 4 refs

  12. Determination of vertical velocities in the equatorial part of the western Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Bahulayan, N.; Varadachari, V.V.R.

    Using steady state two-dimensional turbulent diffusion equations of salt and heat some important characteristics of vertical circulation in the equatorial part of the Indian Ocean have been evaluated and discussed. Upwelling and sinking velocities...

  13. Bacterial Diversity in Deep-Sea Sediments from Afanasy Nikitin Seamount, Equatorial Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Khandeparker, R.; Meena, R.M.; Deobagkar, D.D.

    Deep-sea sediments can reveal much about the last 200 million years of Earth history, including the history of ocean life and climate. Microbial diversity in Afanasy Nikitin seamount located at Equatorial East Indian Ocean (EEIO) was investigated...

  14. Surface currents in the equatorial Indian Ocean during spring and fall - An altimetry based analysis

    Digital Repository Service at National Institute of Oceanography (India)

    Antony, M.K.; Somayajulu, Y.K.

    This communication presents the results of a study aimed at investigating the nature and variability of surface currents in the equatorial Indian Ocean between 5 degrees N and 5 degrees S during spring and fall seasons. Geostrophic surface currents...

  15. Observational evidence of lower-frequency Yanai waves in the central equatorial Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    David, D.T.; PrasannaKumar, S.; Byju, P.; Sarma, M.S.S.; Suryanarayana, A.; Murty, V.S.N.

    created by the northward shifting and strengthening of the westward flowing south equatorial current associated with positive IOD and the eastward flowing southwest monsoon current provides energy for the generation of lower-frequency Yanai waves. Vertical...

  16. Weight Percentage of Calcium Carbonate for 17 Equatorial Pacific Cores from Brown University

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Weight percentages of calcium carbonate in this file were compiled by J. Farrell and W. L. Prell of Brown University for 17 equatorial Pacific Ocean sediment cores....

  17. Detection and Characterization of Equatorial Scintillation for Real-Time Operational Support

    National Research Council Canada - National Science Library

    McNeil, W

    1997-01-01

    The Phillips Laboratory Scintillation Network Decision Aid (PL-SCINDA) is a software tool which uses real-time data from remote sites to model ionospheric plasma depletions in the equatorial region...

  18. Equatorial segment of the mid-atlantic ridge

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    The Equatorial Segment of the Mid-Atlantic Ridge is a part of this mid-oceanic ridge limited by a cluster of fracture zones - Cape Verde, Marathon, Mercury, Vema, Doldrums, Vernadsky and Sierra Leone - in the North, and a similar cluster of fracture zones - St Paul, Romanche and Chain - in the South. During recent decades, following the publication of the 5. edition of the General Bathymetric Chart of the Oceans (GEBCO), there has been a great deal of geological-geophysical research and mapping of the World Ocean. The results have led to the development of a number of theories concerning the essential heterogeneity of the structure of the ocean floor and, in particular, the heterogeneity of the structure and segmentation of mid-oceanic ridges. Research on the nature of such segmentation is of great importance for an understanding of the processes of development of such ridges and oceanic basins as a whole. Chapter 20 is dedicated to the study of the atlantic ocean mantle by using (Th.U)Th, (Th/U)pb and K/Ti systematics 380 refs.

  19. Equatorial segment of the mid-atlantic ridge

    International Nuclear Information System (INIS)

    1996-01-01

    The Equatorial Segment of the Mid-Atlantic Ridge is a part of this mid-oceanic ridge limited by a cluster of fracture zones - Cape Verde, Marathon, Mercury, Vema, Doldrums, Vernadsky and Sierra Leone - in the North, and a similar cluster of fracture zones - St Paul, Romanche and Chain - in the South. During recent decades, following the publication of the 5. edition of the General Bathymetric Chart of the Oceans (GEBCO), there has been a great deal of geological-geophysical research and mapping of the World Ocean. The results have led to the development of a number of theories concerning the essential heterogeneity of the structure of the ocean floor and, in particular, the heterogeneity of the structure and segmentation of mid-oceanic ridges. Research on the nature of such segmentation is of great importance for an understanding of the processes of development of such ridges and oceanic basins as a whole. Chapter 20 is dedicated to the study of the atlantic ocean mantle by using (Th.U)Th, (Th/U)pb and K/Ti systematics

  20. A Cenozoic record of the equatorial Pacific carbonate compensation depth.

    Science.gov (United States)

    Pälike, Heiko; Lyle, Mitchell W; Nishi, Hiroshi; Raffi, Isabella; Ridgwell, Andy; Gamage, Kusali; Klaus, Adam; Acton, Gary; Anderson, Louise; Backman, Jan; Baldauf, Jack; Beltran, Catherine; Bohaty, Steven M; Bown, Paul; Busch, William; Channell, Jim E T; Chun, Cecily O J; Delaney, Margaret; Dewangan, Pawan; Dunkley Jones, Tom; Edgar, Kirsty M; Evans, Helen; Fitch, Peter; Foster, Gavin L; Gussone, Nikolaus; Hasegawa, Hitoshi; Hathorne, Ed C; Hayashi, Hiroki; Herrle, Jens O; Holbourn, Ann; Hovan, Steve; Hyeong, Kiseong; Iijima, Koichi; Ito, Takashi; Kamikuri, Shin-ichi; Kimoto, Katsunori; Kuroda, Junichiro; Leon-Rodriguez, Lizette; Malinverno, Alberto; Moore, Ted C; Murphy, Brandon H; Murphy, Daniel P; Nakamura, Hideto; Ogane, Kaoru; Ohneiser, Christian; Richter, Carl; Robinson, Rebecca; Rohling, Eelco J; Romero, Oscar; Sawada, Ken; Scher, Howie; Schneider, Leah; Sluijs, Appy; Takata, Hiroyuki; Tian, Jun; Tsujimoto, Akira; Wade, Bridget S; Westerhold, Thomas; Wilkens, Roy; Williams, Trevor; Wilson, Paul A; Yamamoto, Yuhji; Yamamoto, Shinya; Yamazaki, Toshitsugu; Zeebe, Richard E

    2012-08-30

    Atmospheric carbon dioxide concentrations and climate are regulated on geological timescales by the balance between carbon input from volcanic and metamorphic outgassing and its removal by weathering feedbacks; these feedbacks involve the erosion of silicate rocks and organic-carbon-bearing rocks. The integrated effect of these processes is reflected in the calcium carbonate compensation depth, which is the oceanic depth at which calcium carbonate is dissolved. Here we present a carbonate accumulation record that covers the past 53 million years from a depth transect in the equatorial Pacific Ocean. The carbonate compensation depth tracks long-term ocean cooling, deepening from 3.0-3.5 kilometres during the early Cenozoic (approximately 55 million years ago) to 4.6 kilometres at present, consistent with an overall Cenozoic increase in weathering. We find large superimposed fluctuations in carbonate compensation depth during the middle and late Eocene. Using Earth system models, we identify changes in weathering and the mode of organic-carbon delivery as two key processes to explain these large-scale Eocene fluctuations of the carbonate compensation depth.

  1. A mantle plume model for the Equatorial Highlands of Venus

    Science.gov (United States)

    Kiefer, Walter S.; Hager, Bradford H.

    1991-01-01

    The possibility that the Equatorial Highlands are the surface expressions of hot upwelling mantle plumes is considered via a series of mantle plume models developed using a cylindrical axisymmetric finite element code and depth-dependent Newtonian rheology. The results are scaled by assuming whole mantle convection and that Venus and the earth have similar mantle heat flows. The best model fits are for Beta and Atla. The common feature of the allowed viscosity models is that they lack a pronounced low-viscosity zone in the upper mantle. The shape of Venus's long-wavelength admittance spectrum and the slope of its geoid spectrum are also consistent with the lack of a low-viscosity zone. It is argued that the lack of an asthenosphere on Venus is due to the mantle of Venus being drier than the earth's mantle. Mantle plumes may also have contributed to the formation of some smaller highland swells, such as the Bell and Eistla regions and the Hathor/Innini/Ushas region.

  2. Improved design of an ITER equatorial EC launcher

    International Nuclear Information System (INIS)

    Takahashi, K.; Kajiwara, K.; Kobayashi, N.; Kasugai, A.; Sakamoto, K.

    2008-01-01

    New design improvements for an ITER equatorial EC launcher are described. A design of the front shield modules was evaluated analytically. The results indicate that these modules can withstand the electromagnetic forces induced by plasma disruption and vertical plasma motion. The steering mirror mock-up including the spiral cooling tubes was fabricated based on the present design with application of the hot isostatic pressing technique to bond the copper alloy mirror body and the embedded stainless steel cooling tubes. The test of water flow was carried out and the expected flow rate was successfully obtained. A quasi-optical (QO) transmission layout has been proposed instead of the waveguide lines. The advantage of this option is possibly to increase the reliability in terms of fabrication and refurbishment. According to the beam propagation analysis, it is verified that transmission loss at the QO region is 1.1%-2.2%, which is comparable to the reference design. The peak heat load on the steering mirror surface could be reduced by 55%, which relaxes the mirror design

  3. Mismo field experiment in the equatorial Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Masumoto, Y.; Kuroda, Y.; Katsumata, M.; Mizuno, K.; Takayabu, Y.N.; Yoshizaki, M.; Shareef, A.; Fujiyoshi, Y.; McPhaden, M.J.; Murty, V.S.N.; Shirooka, R; Yasunaga, K.; Yamada, H.; Sato, N.; Ushiyama, T.; Moteki, Q.; Seiki, A.; Fujita, M.; Ando, K.; Hase, H.; Ueki, I; Horii, T.; Yokoyama, C.; Miyakawa, T.

    MISMO FIELD EXPERIMENT IN THE EQUATORIAL INDIAN OCEAN * b y Ku n i o yo n e y a m a , yu K i o ma s u m o t o , yo s h i f u m i Ku r o d a , ma s a K i Ka t s u m a t a , Ke i s u K e mi z u n o , yu K a r i n. ta K a y a b u , ma s a n o r i... yo s h i z a K i , al i sh a r e e f, ya s u s h i fu j i y o s h i , mi c h a e l j. mcPh a d e n , V. s. n. mu r t y , ry u i c h i sh i r o o K a , Ka z u a K i ya s u n a g a , hi r o y u K i ya m a d a , na o K i sa t o , to m o K i us...

  4. Bottom-type scattering layers and equatorial spread F

    Directory of Open Access Journals (Sweden)

    D. L. Hysell

    2004-12-01

    Full Text Available Jicamarca radar observations of bottom-type coherent scattering layers in the post-sunset bottomside F-region ionosphere are presented and analyzed. The morphology of the primary waves seen in radar images of the layers supports the hypothesis of kudeki+bhattacharyya-1999 that wind-driven gradient drift instabilities are operating. In one layer event when topside spread F did not occur, irregularities were distributed uniformly in space throughout the layers. In another event when topside spread F did eventually occur, the irregularities within the pre-existing bottom-type layers were horizontally clustered, with clusters separated by about 30km. The same horizontal periodicity was evident in the radar plumes and large-scale irregularities that emerged later in the event. We surmise that horizontal periodicity in bottom-type layer irregularity distribution is indicative of large-scale horizontal waves in the bottomside F-region that may serve as seed waves for large-scale Rayleigh Taylor instabilities. Key words. Ionosphere (equatorial ionosphere; ionospheric irregularties; plasma waves and instabilities

  5. Asymptotic approach for the nonlinear equatorial long wave interactions

    International Nuclear Information System (INIS)

    Ramirez Gutierrez, Enver; Silva Dias, Pedro L; Raupp, Carlos

    2011-01-01

    In the present work we use an asymptotic approach to obtain the long wave equations. The shallow water equation is put as a function of an external parameter that is a measure of both the spatial scales anisotropy and the fast to slow time ratio. The values given to the external parameters are consistent with those computed using typical values of the perturbations in tropical dynamics. Asymptotically, the model converge toward the long wave model. Thus, it is possible to go toward the long wave approximation through intermediate realizable states. With this approach, the resonant nonlinear wave interactions are studied. To simplify, the reduced dynamics of a single resonant triad is used for some selected equatorial trios. It was verified by both theoretical and numerical results that the nonlinear energy exchange period increases smoothly as we move toward the long wave approach. The magnitude of the energy exchanges is also modified, but in this case depends on the particular triad used and also on the initial energy partition among the triad components. Some implications of the results for the tropical dynamics are discussed. In particular, we discuss the implications of the results for El Nino and the Madden-Julian in connection with other scales of time and spatial variability.

  6. Equatorial spread F: a review of recent experimental results

    International Nuclear Information System (INIS)

    Kelley, M.C.

    1979-01-01

    In this paper the authors review an intense research effort aimed at understanding the large scale disruption of the equatorial F layer which often commences just after sunset, and lasts for most of the night. A very attractive explanation for the phenomena, although one not universally accepted, is that the F layer is unstable to the classic Rayleigh-Taylor condition in which a heavy fluid, the plasma, is supported against gravity by a light 'fluid', the Earth's magnetic field. It is concluded that a reasonable case has been made for this explanation provided that the concept is extended to include nonlinear Rayleigh-Taylor like buoyancy effects above the F peak where linear process is stable. Internal gravity waves in neutral atmosphere seem to play an important role in seeding the Rayleigh-Taylor process with large scale finite amplitude perturbations. One of the remarkable features of this phenomena is the nearly simultaneous generation of structure with scale sizes spanning five orders of magnitude. These results may have applications in astrophysical processes where the Rayleigh-Taylor instability is thought to play a role. (Auth.)

  7. Equatorial insolation: from precession harmonics to eccentricity frequencies

    Directory of Open Access Journals (Sweden)

    A. Berger

    2006-01-01

    Full Text Available Since the paper by Hays et al. (1976, spectral analyses of climate proxy records provide substantial evidence that a fraction of the climatic variance is driven by insolation changes in the frequency ranges of obliquity and precession variations. However, it is the variance components centered near 100 kyr which dominate most Upper Pleistocene climatic records, although the amount of insolation perturbation at the eccentricity driven periods close to 100-kyr (mainly the 95 kyr- and 123 kyr-periods is much too small to cause directly a climate change of ice-age amplitude. Many attempts to find an explanation to this 100-kyr cycle in climatic records have been made over the last decades. Here we show that the double maximum which characterizes the daily irradiation received in tropical latitudes over the course of the year is at the origin in equatorial insolation of not only strong 95 kyr and 123 kyr periods related to eccentricity, but also of a 11-kyr and a 5.5-kyr periods related to precession.

  8. Equatorial circular orbits in the Kerr-de Sitter spacetimes

    International Nuclear Information System (INIS)

    Stuchlik, Zdenek; Slany, Petr

    2004-01-01

    Equatorial motion of test particles in Kerr-de Sitter spacetimes is considered. Circular orbits are determined, their properties are discussed for both black-hole and naked-singularity spacetimes, and their relevance for thin accretion disks is established. The circular orbits constitute two families that coalesce at the so-called static radius. The orientation of the motion along the circular orbits is, in accordance with case of asymptotically flat Kerr spacetimes, defined by relating the motion to the locally nonrotating frames. The minus-family orbits are all counterrotating, while the plus-family orbits are usually corotating relative to these frames. However, the plus-family orbits become counterrotating in the vicinity of the static radius in all Kerr-de Sitter spacetimes, and they become counterrotating in the vicinity of the ring singularity in Kerr-de Sitter naked-singularity spacetimes with a low enough rotational parameter. In such spacetimes, the efficiency of the conversion of the rest energy into heat energy in the geometrically thin plus-family accretion disks can reach extremely high values exceeding the efficiency of the annihilation process. The transformation of a Kerr-de Sitter naked singularity into an extreme black hole due to accretion in the thin disks is briefly discussed for both the plus-family and minus-family disks. It is shown that such a conversion leads to an abrupt instability of the innermost parts of the plus-family accretion disks that can have strong observational consequences

  9. Equatorial segment of the mid-atlantic ridge

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    The Equatorial Segment of the Mid-Atlantic Ridge is a part of this mid-oceanic ridge limited by a cluster of fracture zones - Cape Verde, Marathon, Mercury, Vema, Doldrums, Vernadsky and Sierra Leone - in the North, and a similar cluster of fracture zones - St Paul, Romanche and Chain - in the South. During recent decades, following the publication of the 5. edition of the General Bathymetric Chart of the Oceans (GEBCO), there has been a great deal of geological-geophysical research and mapping of the World Ocean. The results have led to the development of a number of theories concerning the essential heterogeneity of the structure of the ocean floor and, in particular, the heterogeneity of the structure and segmentation of mid-oceanic ridges. Research on the nature of such segmentation is of great importance for an understanding of the processes of development of such ridges and oceanic basins as a whole. Chapter 20 is dedicated to the study of the atlantic ocean mantle by using (Th.U)Th, (Th/U)pb and K/Ti systematics 380 refs.

  10. Secure base stations

    NARCIS (Netherlands)

    Bosch, Peter; Brusilovsky, Alec; McLellan, Rae; Mullender, Sape J.; Polakos, Paul

    2009-01-01

    With the introduction of the third generation (3G) Universal Mobile Telecommunications System (UMTS) base station router (BSR) and fourth generation (4G) base stations, such as the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) Evolved Node B (eNB), it has become important to

  11. INTERACT Station Catalogue - 2015

    DEFF Research Database (Denmark)

    INTERACT stations are located in all major environmental envelopes of the Arctic providing an ideal platform for studying climate change and its impact on the environment and local communities. Since alpine environments face similar changes and challenges as the Arctic, the INTERACT network also ...... catalogue includes descriptions of 73 research stations included in the network at the time of printing....

  12. Meyrin Petrol Station

    CERN Multimedia

    2006-01-01

    Please note that the Meyrin petrol station will be closed for maintenance work on Tuesday 19 and Wednesday 20 December 2006. If you require petrol during this period we invite you to use the Prévessin petrol station, which will remain open. TS-IC-LO Section Tel.: 77039 - 73793

  13. Nuclear power stations licensing

    International Nuclear Information System (INIS)

    Solito, J.

    1978-04-01

    The judicial aspects of nuclear stations licensing are presented. The licensing systems of the United States, Spain, France and Federal Republic of Germany are focused. The decree n 0 60.824 from July 7 sup(th), 1967 and the following legislation which define the systematic and area of competence in nuclear stations licensing are analysed [pt

  14. SPS rectifier stations

    CERN Multimedia

    CERN PhotoLab

    1974-01-01

    The first of the twelves SPS rectifier stations for the bending magnets arrived at CERN at the end of the year. The photograph shows a station with the rectifiers on the left and in the other three cubicles the chokes, capacitors and resistor of the passive filter.

  15. Ondergronds Station Blijdorp, Rotterdam

    NARCIS (Netherlands)

    Hijma, M.P.|info:eu-repo/dai/nl/266562426; Cohen, K.M.|info:eu-repo/dai/nl/185633374

    2014-01-01

    Het is in de herfst van 2005. Een lief meisje, Marieke, rijdt op haar vouwfiets door Rotterdam. Bij het Centraal Station is het al tijden een grote bouwplaats. Onder de nieuwe hal komt een veel groter metrostation en ook onder de Statenweg in Blijdorp is een grote bouwput voor een nieuw station.

  16. Modeling Global Ocean Biogeochemistry With Physical Data Assimilation: A Pragmatic Solution to the Equatorial Instability

    Science.gov (United States)

    Park, Jong-Yeon; Stock, Charles A.; Yang, Xiaosong; Dunne, John P.; Rosati, Anthony; John, Jasmin; Zhang, Shaoqing

    2018-03-01

    Reliable estimates of historical and current biogeochemistry are essential for understanding past ecosystem variability and predicting future changes. Efforts to translate improved physical ocean state estimates into improved biogeochemical estimates, however, are hindered by high biogeochemical sensitivity to transient momentum imbalances that arise during physical data assimilation. Most notably, the breakdown of geostrophic constraints on data assimilation in equatorial regions can lead to spurious upwelling, resulting in excessive equatorial productivity and biogeochemical fluxes. This hampers efforts to understand and predict the biogeochemical consequences of El Niño and La Niña. We develop a strategy to robustly integrate an ocean biogeochemical model with an ensemble coupled-climate data assimilation system used for seasonal to decadal global climate prediction. Addressing spurious vertical velocities requires two steps. First, we find that tightening constraints on atmospheric data assimilation maintains a better equatorial wind stress and pressure gradient balance. This reduces spurious vertical velocities, but those remaining still produce substantial biogeochemical biases. The remainder is addressed by imposing stricter fidelity to model dynamics over data constraints near the equator. We determine an optimal choice of model-data weights that removed spurious biogeochemical signals while benefitting from off-equatorial constraints that still substantially improve equatorial physical ocean simulations. Compared to the unconstrained control run, the optimally constrained model reduces equatorial biogeochemical biases and markedly improves the equatorial subsurface nitrate concentrations and hypoxic area. The pragmatic approach described herein offers a means of advancing earth system prediction in parallel with continued data assimilation advances aimed at fully considering equatorial data constraints.

  17. Biogeochemical impact of a model western iron source in the Pacific Equatorial Undercurrent

    OpenAIRE

    Slemons, L.; Gorgues, T.; Aumont, Olivier; Menkès, Christophe; Murray, J. W.

    2009-01-01

    Trace element distributions in the source waters of the Pacific Equatorial Undercurrent (EUC) show the existence of elevated total acid-soluble iron concentrations. This region has been suggested to contribute enough bioavailable iron to regulate interannual and interglacial variability in biological productivity downstream in the high-nitrate low-chlorophyll upwelling zone of the eastern equatorial Pacific. We investigated the advection and first-order biogeochemical impact of an imposed, da...

  18. The effect of J2 on equatorial and halo orbits around a magnetic planet

    International Nuclear Information System (INIS)

    Inarrea, Manuel; Lanchares, Victor; Palacian, Jesus F.; Pascual, Ana I.; Pablo Salas, J.; Yanguas, Patricia

    2009-01-01

    We calculate equatorial and halo orbits around a non-spherical (both oblate and prolate) magnetic planet. It is known that circular equatorial and halo orbits exist for a dust grain orbiting a spherical magnetic planet. However, the frequency of the orbit is constrained by the charge-mass ratio of the particle. If the non-sphericity of the planet is taken into account this constraint is modified or, in some cases, it disappears.

  19. Impact of convection over the equatorial trough on the summer monsoon activity over India

    Digital Repository Service at National Institute of Oceanography (India)

    RameshKumar, M.R.; Shenoi, S.S.C.; Schulz, J.

    . There have been studies (Cadet and Olory Togbe, 1981; Sadhuram and Sastry, 1987) on the role of Equatorial Trough (ET) as well as Southern Hemispheric Equatorial Trough (SHET) on the rainfall over central India. Most of these studies are related... the ET, WET and EET behave in a similar fashion during different monsoon and El Nino conditions ? c) What role do the synoptic systems play during the BM over the Indian subcontinent? 2. Data and Methodology The pentad precipitation data used...

  20. The effect of J{sub 2} on equatorial and halo orbits around a magnetic planet

    Energy Technology Data Exchange (ETDEWEB)

    Inarrea, Manuel [Universidad de la Rioja, Area de Fisica, 26006 Logrono (Spain); Lanchares, Victor [Dpto. de Matematicas y Computacion, CIEMUR: Centro de Investigacion en Informatica, Estadistica y Matematicas, Universidad de la Rioja, 26004 Logrono (Spain)], E-mail: vlancha@unirioja.es; Palacian, Jesus F. [Universidad Publica de Navarra, Departamento de Ingenieria Matematica e Informatica, 31006 Pamplona (Spain); Pascual, Ana I. [Dpto. de Matematicas y Computacion, CIEMUR: Centro de Investigacion en Informatica, Estadistica y Matematicas, Universidad de la Rioja, 26004 Logrono (Spain); Pablo Salas, J. [Universidad de la Rioja, Area de Fisica, 26006 Logrono (Spain); Yanguas, Patricia [Universidad Publica de Navarra, Departamento de Ingenieria Matematica e Informatica, 31006 Pamplona (Spain)

    2009-10-15

    We calculate equatorial and halo orbits around a non-spherical (both oblate and prolate) magnetic planet. It is known that circular equatorial and halo orbits exist for a dust grain orbiting a spherical magnetic planet. However, the frequency of the orbit is constrained by the charge-mass ratio of the particle. If the non-sphericity of the planet is taken into account this constraint is modified or, in some cases, it disappears.

  1. [STEM on Station Education

    Science.gov (United States)

    Lundebjerg, Kristen

    2016-01-01

    The STEM on Station team is part of Education which is part of the External Relations organization (ERO). ERO has traditional goals based around BHAG (Big Hairy Audacious Goal). The BHAG model is simplified to a saying: Everything we do stimulates actions by others to advance human space exploration. The STEM on Station education initiate is a project focused on bringing off the earth research and learning into classrooms. Educational resources such as lesson plans, activities to connect with the space station and STEM related contests are available and hosted by the STEM on Station team along with their partners such as Texas Instruments. These educational activities engage teachers and students in the current happenings aboard the international space station, inspiring the next generation of space explorers.

  2. Central Station Design Options

    DEFF Research Database (Denmark)

    2011-01-01

    . The work identifies the architecture, sizing and siting of prospective Central Stations in Denmark, which can be located at shopping centers, large car parking lots or gas stations. Central Stations are planned to be integrated in the Danish distribution grid. The Danish island of Bornholm, where a high...... overloading, more reference points might be necessary to represent various transformer loading levels. The subject of safety in Central Station is also addressed. A number of safety rules based on European standards apply to AC charging equipment up to 44 kW. The connection interlock and the automatic de......-energization are identified as fundamental requirements for safety in such a charging station. The connection interlock is a solution which ensures that no power is applied to the DC cable when the EV connector is not connected. The automatic de-energization device ensures that whenever a strain on the cable is detected, e...

  3. Equatorial electrojet as part of the global circuit: a case-study from the IEEY

    Directory of Open Access Journals (Sweden)

    A. T. Kobea

    1998-06-01

    Full Text Available Geomagnetic storm-time variations often occur coherently at high latitude and the day-side dip equator where they affect the normal eastward Sq field. This paper presents an analysis of ground magnetic field and ionospheric electrodynamic data related to the geomagnetic storm which occured on 27 May 1993 during the International Equatorial Electrojet Year (IEEY experiment. This storm-signature analysis on the auroral, mid-latitude and equatorial ground field and ionospheric electrodynamic data leads to the identification of a sensitive response of the equatorial electrojet (EEJ to large-scale auroral return current: this response consists in a change of the eastward electric field during the pre-sunrise hours (0400-0600 UT coherently to the high-, mid-, and equatorial-latitude H decrease and the disappearance of the EEJ irregularities between the time-interval 0800-0950 UT. Subsequent to the change in h'F during pre-sunrise hours, the observed foF2 increase revealed an enhancement of the equatorial ionization anomaly (EIA caused by the high-latitude penetrating electric field. The strengthening of these irregularities attested by the Doppler frequency increase tracks the H component at the equator which undergoes a rapid increase around 0800 UT. The ∆H variations observed at the equator are the sum of the following components: SR, DP, DR, DCF and DT.Keywords. Equatorial electrojet · Magnetosphere-ionosphere interactions · Electric fields and currents · Auroral ionosphere · Ionospheric disturbances

  4. A study of transient variations in the Earth's electromagnetic field at equatorial electrojet latitudes in western Africa (Mali and the Ivory Coast

    Directory of Open Access Journals (Sweden)

    J. Vassal

    1998-06-01

    Full Text Available In the framework of the French-Ivorian participation to the IEEY, a network of 10 electromagnetic stations were installed at African longitudes. The aim of this experiment was twofold: firstly, to study the magnetic signature of the equatorial electrojet on the one hand, and secondly, to characterize the induced electric field variations on the other hand. The first results of the magnetic field investigations were presented by Doumouya and coworkers. Those of the electric field experiment will be discussed in this study. The electromagnetic experiment will be described. The analysis of the electromagnetic transient variations was conducted in accordance with the classical distinction between quiet and disturbed magnetic situations. A morphological analysis of the recordings is given, taking into consideration successively quiet and disturbed magnetic situations, with the results interpreted in terms of the characterization of external and internal sources. Particular attention was paid to the effects of the source characteristics on the induced field of internal origin, and to the bias they may consequently cause to the results of electromagnetic probing of the Earth; the source effect in electromagnetic induction studies. During quiet magnetic situations, our results demonstrated the existence of two different sources. One of these, the SRE source, was responsible for most of the magnetic diurnal variation and corresponded to the well-known magnetic signature of the equatorial electrojet. The other source (the SR*E source was responsible for most of the electric diurnal variation, and was also likely to be an ionospheric source. Electric and magnetic diurnal variations are therefore related to different ionospheric sources, and interpreting the electric diurnal variation as induced by the magnetic field diurnal variation is not relevant. Furthermore, the magnetotelluric probing of the upper mantle at dip equator latitudes with the

  5. A study of transient variations in the Earth's electromagnetic field at equatorial electrojet latitudes in western Africa (Mali and the Ivory Coast

    Directory of Open Access Journals (Sweden)

    J. Vassal

    Full Text Available In the framework of the French-Ivorian participation to the IEEY, a network of 10 electromagnetic stations were installed at African longitudes. The aim of this experiment was twofold: firstly, to study the magnetic signature of the equatorial electrojet on the one hand, and secondly, to characterize the induced electric field variations on the other hand. The first results of the magnetic field investigations were presented by Doumouya and coworkers. Those of the electric field experiment will be discussed in this study. The electromagnetic experiment will be described. The analysis of the electromagnetic transient variations was conducted in accordance with the classical distinction between quiet and disturbed magnetic situations. A morphological analysis of the recordings is given, taking into consideration successively quiet and disturbed magnetic situations, with the results interpreted in terms of the characterization of external and internal sources. Particular attention was paid to the effects of the source characteristics on the induced field of internal origin, and to the bias they may consequently cause to the results of electromagnetic probing of the Earth; the source effect in electromagnetic induction studies. During quiet magnetic situations, our results demonstrated the existence of two different sources. One of these, the SRE source, was responsible for most of the magnetic diurnal variation and corresponded to the well-known magnetic signature of the equatorial electrojet. The other source (the SR*E source was responsible for most of the electric diurnal variation, and was also likely to be an ionospheric source. Electric and magnetic diurnal variations are therefore related to different ionospheric sources, and interpreting the electric diurnal variation as induced by the magnetic field diurnal variation is not relevant. Furthermore, the magnetotelluric probing of the upper mantle at

  6. Produção orgânica: predileção de consumo e potencialidades do seguimento em Fortaleza – CE

    Directory of Open Access Journals (Sweden)

    C. S. P. Oliveira

    2015-12-01

    Full Text Available Este trabalho objetivou investigar o perfil de consumidores de produtos orgânicos, bem como sua forma de aquisição e quais as preferências que influenciam no momento de decidir sobre a compra. O presente estudo foi desenvolvido durante a VIII FECEAF – Feira Cearense da Agricultura Familiar – em Fortaleza, Ceará, durante julho de 2015, totalizando 100 sujeitos amostrais. Foram respondidas questões objetivas referentes ao perfil do consumidor, onde os indivíduos do sexo feminino (51%, à faixa etária entre 21 a 30 (39% e o ensino médio (48% desse público obtiveram maior representatividade. Observou-se ainda o pouco conhecimento acerca dos produtos orgânicos entre os entrevistados (61%, tendo a televisão como principal fonte de informação a respeito do tema (34%. No que diz respeito aos hábitos de consumo e a forma de aquisição desse tipo de produto, 54% dos respondentes o escolhem por apresentar uma melhor qualidade quando comparados aos convencionais, 43% o consomem todos os dias e 41% costumam adquiri-los em supermercados. Já o hábito familiar de consumo obteve um percentual expressivo (87%, em que todos os integrantes da família fazem uso do consumo de produtos orgânicos. Quanto à atratividade, 53% relatam que a ausência de agrotóxicos tornam os produtos orgânicos mais atrativos. Entre os orgânicos mais consumidos, as frutas (53% e as hortaliças (29% obtiveram maior destaque. Nesse sentido concluímos com o trabalho que os hábitos alimentares das famílias tem se tornado cada vez mais saudáveis, dando espaço ao crescimento do comércio do produto orgânico, fortalecendo o mercado incentivando a produção. Organic production: consumer preference and potential tracking in Fortaleza – CEAbstract: This study aimed to investigate the profile of consumers of organic products as well as their way of acquisition and which preferences that influence when deciding on the purchase. This study was developed during the

  7. Impact of Sudden Stratospheric Warming of 2009 on the Equatorial and Low-Latitude Ionosphere of the Indian Longitudes: A Case Study

    Science.gov (United States)

    Yadav, Sneha; Pant, Tarun K.; Choudhary, R. K.; Vineeth, C.; Sunda, Surendra; Kumar, K. K.; Shreedevi, P. R.; Mukherjee, S.

    2017-10-01

    Using the equatorial electrojet (EEJ)-induced surface magnetic field and total electron content (TEC) measurements, we investigated the impact of the sudden stratospheric warming (SSW) of January 2009 on the equatorial electrodynamics and low-latitude ionosphere over the Indian longitudes. Results indicate that the intensity of EEJ and the TEC over low latitudes (extending up to 30°N) exhibit significant perturbations during and after the SSW peak. One of the interesting features is the deviation of EEJ and TEC from the normal quiet time behavior well before the onset of the SSW. This is found to coincide with the beginning of enhanced planetary wave (PW) activity over high latitudes. The substantial amplification of the semidiurnal perturbation after the SSW peak is seen to be coinciding with the onset of new and full moons. The response of TEC to SSW is found to be latitude dependent as the near-equatorial (NE) stations show the semidiurnal perturbation only after the SSW peak. Another notable feature is the presence of reduced ionization in the night sector over the NE and low-latitude regions, appearing as an "ionization hole," well after the SSW peak. The investigation revealed the existence of a quasi 16 day wave in the TEC over low latitudes similar to the one present in the EEJ strength. These results have been discussed in the light of changes in the dynamical background because of enhanced PW activity during SSW, which creates favorable conditions for the amplification of lunar tides, and their subsequent interaction with the lower thermospheric tidal fields.

  8. Ocean Color and the Equatorial Annual Cycle in the Pacific

    Science.gov (United States)

    Hammann, A. C.; Gnanadesikan, A.

    2012-12-01

    The presence of chlorophyll, colored dissolved organic matter (CDOM) and other scatterers in ocean surface waters affect the flux divergence of solar radiation and thus the vertical distribution of radiant heating of the ocean. While this may directly alter the local mixed-layer depth and temperature (Martin 1985; Strutton & Chavez 2004), non-local changes are propagated through advection (Manizza et al. 2005; Murtugudde et al. 2002; Nakamoto et al. 2001; Sweeny et al. 2005). In and coupled feedbacks (Lengaigne et al. 2007; Marzeion & Timmermann 2005). Anderson et al. (2007), Anderson et al. (2009) and Gnanadesikan & Anderson (2009) have performed a series of experiments with a fully coupled climate model which parameterizes the e-folding depth of solar irradiance in terms of surface chlorophyll-a concentration. The results have so far been discussed with respect to the climatic mean state and ENSO variability in the tropical Pacific. We extend the discussion here to the Pacific equatorial annual cycle. The focus of the coupled experiments has been the sensitivity of the coupled system to regional differences in chlorophyll concentration. While runs have been completed with realistic SeaWiFS-derived monthly composite chlorophyll ('green') and with a globally chlorophyll-free ocean ('blue'), the concentrations in two additional runs have been selectively set to zero in specific regions: the oligotrophic subtropical gyres ('gyre') in one case and the mesotrophic gyre margins ('margin') in the other. The annual cycle of ocean temperatures exhibits distinctly reduced amplitudes in the 'blue' and 'margin' experiments, and a slight reduction in 'gyre' (while ENSO variability almost vanishes in 'blue' and 'gyre', but amplifies in 'margin' - thus the frequently quoted inverse correlation between ENSO and annual amplitudes holds only for the 'green' / 'margin' comparison). It is well-known that on annual time scales, the anomalous divergence of surface currents and vertical

  9. CONTAMINAÇÃO AMBIENTAL POR LARVAS E OVOS DE HELMINTOS EM AMOSTRAS DE AREIA DE PRAIAS DO MUNICÍPIO DE FORTALEZA-CEARÁ.

    Directory of Open Access Journals (Sweden)

    Ésio Fortaleza Nascimento Chaves Pedrosa

    2014-03-01

    Full Text Available Introdução: As praias são importantes focos de infecção humana por microrganismos, tanto através da água quanto do solo, sendo esta última um excelente meio de veiculação de várias espécies de parasitos, entre eles S. stercoralis, Toxocara canis, A. lumbricoides, Ancilostomídeos, entre outros. Objetivo do estudo: avaliar a contaminação das praias de Fortaleza (Praia do Futuro, Barra do Ceará e Beira Mar por parasitas de importância médica.Materiais e Métodos: Foram selecionados seis pontos de cada praia onde foi colhido material (100 g de areia em três amostras (uma superficial, uma com 10 cm de profundidade e outra com 20 cm, totalizando 54 amostras, que foram transportadas imediatamente ao laboratório para a análise. Resultados: Dentre as 54 amostras de areia analisadas, em 39 (72,2% foram encontradas larvas, das quais 35 (64,8% foram positivas para Ancylostoma sp , 3 (5,5% para Strongyloides stercoralis e 4 (7,4%  com ovos de Trichuris trichiura. Discussão: Os resultados apresentados comprovam a contaminação do solo da praia do Futuro, Beira Mar e Barra do Ceará, assim como a possibilidade de ocorrência de infecções humanas por enteroparasitas através do solo. Conclusão: Conclui-se que as praias da Barra do Ceará, Praia do Futuro e Beira Mar da cidade de Fortaleza encontram-se em situação precária de saneamento, visto que foram encontrados ovos e larvas de parasitas potencialmente infectantes em 72,2% das amostras, tornando-se necessário apoio e suporte de medidas da vigilância sanitária nestas praias imediatamente.

  10. EFECTO DE LAS DESIGUALDADES SOCIOECONÓMICAS EN LA MORTALIDAD DE LA CIUDAD DE FORTALEZA, CEARÁ, BRASIL DURANTE EL AÑO 2007

    Directory of Open Access Journals (Sweden)

    Danila Carneiro de Oliveira

    2010-01-01

    Full Text Available Fundamentos: Brasil es un ejemplo para estudiar la situación de la pobreza y sus determinantes, ya que posee una gran parte de la población pobre de América Latina y presenta gran potencial para erradicar esta pobreza. El presente trabajo pretende mostrar la asociación entre la mortalidad y el índice de pobreza en la ciudad de Fortaleza, capital del estado Ceará. Métodos: Estudio ecológico transversal, la unidad de análisis fueron los barrios de la ciudad de Fortaleza. Los datos de mortalidad se obtuvieron a través del Sistema Único de Salud, incluyendo todas las defunciones del año 2007 y sus causas. Los indicadores socioeconómicos y número de habitantes se extrajeron del Censo de Habitantes y Viviendas del Instituto Brasileño de Estadísticas del año 2000. Se calculó un índice compuesto de privación a partir de los principales indicadores simples de privación utilizando una técnica de agrupamiento tipo Cluster y se realizó un análisis de correlación para valorar la asociación entre nivel socioeconómico y mortalidad. El índice compuesto de privación se dividió en cinco grupos, el grupo 1 presentaba las mejores condiciones socioeconómicas y el 5 las peores. Resultados: Se observó asociación significativa del nivel socioeconómico con la mortalidad total (p<0,001, por enfermedades circulatorias (p<0,001 y por causas externas (p<0,001. Además, el 86% de los casos de agresión sucedieron en los grupos 4 y 5. Conclusiones: Existe relación directa entre la condición socioeconómica y la mortalidad total por causas circulatorias y por causas externas.

  11. Knowledge about genetically modified food: a study with supermarket clients situated in noble area of Fortaleza city - doi:10.5020/18061230.2004.p72

    Directory of Open Access Journals (Sweden)

    Paola Gondim Calvasina

    2012-01-01

    Full Text Available The transgenic foods had appeared as result of the scientific and technological advances of genetic engineering applied to agriculture, configuring themselves in a current quarrel and sufficient controversy, about how much the benefits and curses brought to the consumers and the proper environment. In this intention, this study has as objective to verify the level of knowledge of customers of a supermarket of the noble area of the city of Fortaleza, on the thematic of the transgenic. Questionnaires structuralized with questions on transgenic foods with consumers of a situated supermarket in noble area of the city of Fortaleza in the period of March of 2003 had been applied. Sixty consumers had participated of the study who at the moment were making purchases in the supermarket. It was presented the end of the interview, to each consumer, a list of products, removed of the guide of the transgenic food consumer and not transgenic, available on the Greenpeace. In each list, people would have to recognize or not products of its habitual consumption. It was verified that 50% of the interviewed people had higher level of school knowledge, with 63,3% answering that they knew what transgenic foods are; 53,3% always look at the label during the purchase, being that the majority (76,7% never saw, in the label, mention if the product is or not transgenic. It was evidenced, when interrogating on the possible risks to the health, that 33.3% find that they cause illnesses, however 51.7% would not be imported in consuming them. The opinion of the people regarding the release of these products is major (73,3% in agreeing that the Federal Government must wait more research. From the list of products presented to the interviewed, 60% had told that they consume enter 5 to 9 products. It was evidenced that still a lack knowledge exists on the presence of transgenic in industrialized products, as well as how much to the risks consuming it. It has necessity of

  12. Epidemia de dengue em Fortaleza, Ceará: inquérito soro-epidemiológico aleatório

    Directory of Open Access Journals (Sweden)

    Pedro F. C. Vasconcelos

    1998-10-01

    Full Text Available OBJETIVO: Seguindo-se à epidemia de dengue (DEN, em 1994, em Fortaleza, Ceará, causada pelo sorotipo 2 (DEN-2, realizou-se inquérito soro-epidemiológico aleatório para avaliar e dimensionar o impacto da mesma e a prevalência do dengue por distrito sanitário. MÉTODO: Foi aplicado questionário contendo informações gerais, condições socio-econômicas, informações sobre o quadro clínico e tempo de doença. A amostra foi calculada para estimar uma prevalência de 20%, com erro relativo de 10%, e intervalo de confiança de 95% (erro a de 5%. O sorteio e as análises foram realizadas por meio de computador usando programas apropriados. RESULTADOS E CONCLUSÕES: Foram colhidas 1.341 amostras de soro de 9 distritos sanitários, testadas por inibição da hemaglutinação, sendo classificadas como negativas e positivas (respostas primária - RP e secundária - RS. Foram reativas 588 (44% amostras, sendo 93 (7% RP e 495 (37% RS. A prevalência global em Fortaleza variou de 21% a 71%. Houve 41% (243/588 de infecções assintomáticas (IA e 59% (346/588 sintomáticas (IS. Não houve diferença da prevalência quanto ao sexo, faixa etária e escolaridade, ao contrário da condição socioeconômica que apresentou diferenças estatisticamente significantes (p < 0,001. Ocorreram mais IA (p<0,001 e IS (p<0,0001 em casos de RS que RP, com significância estatística em ambos os sexos. Os sintomas mais prevalentes no casos confirmados foram febre, cefaléia, mialgias, exantema, mal estar geral, tontura e artralgias, sendo que prurido, dor ocular, exantema e gengivorragia foram estatisticamente significantes (p<0,005. Tontura e artralgias foram mais associados com RS que com RP, havendo diferenças estatísticas (p <0,05.

  13. Space station operations management

    Science.gov (United States)

    Cannon, Kathleen V.

    1989-01-01

    Space Station Freedom operations management concepts must be responsive to the unique challenges presented by the permanently manned international laboratory. Space Station Freedom will be assembled over a three year period where the operational environment will change as significant capability plateaus are reached. First Element Launch, Man-Tended Capability, and Permanent Manned Capability, represent milestones in operational capability that is increasing toward mature operations capability. Operations management concepts are being developed to accomodate the varying operational capabilities during assembly, as well as the mature operational environment. This paper describes operations management concepts designed to accomodate the uniqueness of Space Station Freedoom, utilizing tools and processes that seek to control operations costs.

  14. Waste Transfer Stations

    DEFF Research Database (Denmark)

    Christensen, Thomas Højlund

    2011-01-01

    tion and transport is usually the most costly part of any waste management system; and when waste is transported over a considerable distance or for a long time, transferring the waste from the collection vehicles to more efficient transportation may be economically beneficial. This involves...... a transfer station where the transfer takes place. These stations may also be accessible by private people, offering flexibility to the waste system, including facilities for bulky waste, household hazardous waste and recyclables. Waste transfer may also take place on the collection route from small...... describes the main features of waste transfer stations, including some considerations about the economical aspects on when transfer is advisable....

  15. Freqüência e atividade enzimática de Candida albicans isoladas da mucosa bucal de crianças de uma creche da prefeitura de Fortaleza Frequency and enzymatic activity of Candida albicans isolated from the buccal mucosa of children of a day-care center of the city hall of Fortaleza, Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Everardo Albuquerque Menezes

    2005-02-01

    Full Text Available As candidíases bucais (também chamadas sapinhos que ocorrem em crianças são causadas por uma deficiência imunológica, bem como por outros fatores tais como má higiene bucal e esterilização inadequada dos utensílios utilizados pelas mesmas, que potencializam a ocorrência dessa infecção fúngica. Considerando esse fato, foram avaliadas a freqüência e a atividade enzimática de Candida sp. isoladas em crianças de uma creche pública (Aprisco na cidade de Fortaleza, Ceará. Foram coletadas amostras da mucosa bucal de 364 alunos de 1 a 5 anos de idade. Elas foram semeadas em ágar Sabouraud dextrose com cloranfenicol, incubadas por 72 horas a 37ºC e identificadas por testes micológicos. Verificou-se que 67 (18% apresentaram leveduras do gênero Candida. A Candida albicans foi a mais freqüente, com 30 isolados (45%, seguida pelas C. tropicalis (31%, C. guilliermondii (17%, C. glabrata (4,5% e C. stellatoidea (1,5%. Com relação às atividades enzimáticas das cepas de Candida albicans, 20% produziram a enzima proteinase e 33%, a fosfolipase. As Candida albicans isoladas da mucosa bucal de crianças dessa creche da prefeitura apresentaram uma fraca atividade enzimática. Assim, conclui-se que essas cepas parecem ter uma baixa virulência.Immunedefficiency is one of the main causes of buccal candidiasis, also called thrush, in children. Other factors like inadequate mouth hygiene and inappropriate sterilization utensils potentialize this fungal infection. Considering these facts, Candida sp. frequency and enzymatic activity were evaluated in 364 stocks from mouth mucous of one to five year-old children from a public day care center in Fortaleza, Ceará (Brazil. The samples were cultured in dextrose Sabouraud with chloranfenicol agar and incubated for 72 hours at 37°C. They were identified by mycological tests. It was verified that 67 samples (18% presented Candida sp. and the most frequent genus was Candida albicans (30

  16. Coral settlement on a highly disturbed equatorial reef system.

    Science.gov (United States)

    Bauman, Andrew G; Guest, James R; Dunshea, Glenn; Low, Jeffery; Todd, Peter A; Steinberg, Peter D

    2015-01-01

    Processes occurring early in the life stages of corals can greatly influence the demography of coral populations, and successful settlement of coral larvae that leads to recruitment is a critical life history stage for coral reef ecosystems. Although corals in Singapore persist in one the world's most anthropogenically impacted reef systems, our understanding of the role of coral settlement in the persistence of coral communities in Singapore remains limited. Spatial and temporal patterns of coral settlement were examined at 7 sites in the southern islands of Singapore, using settlement tiles deployed and collected every 3 months from 2011 to 2013. Settlement occurred year round, but varied significantly across time and space. Annual coral settlement was low (~54.72 spat m(-2) yr(-1)) relative to other equatorial regions, but there was evidence of temporal variation in settlement rates. Peak settlement occurred between March-May and September-November, coinciding with annual coral spawning periods (March-April and October), while the lowest settlement occurred from December-February during the northeast monsoon. A period of high settlement was also observed between June and August in the first year (2011/12), possibly due to some species spawning outside predicted spawning periods, larvae settling from other locations or extended larval settlement competency periods. Settlement rates varied significantly among sites, but spatial variation was relatively consistent between years, suggesting the strong effects of local coral assemblages or environmental conditions. Pocilloporidae were the most abundant coral spat (83.6%), while Poritidae comprised only 6% of the spat, and Acroporidae coral spat. These results indicate that current settlement patterns are reinforcing the local adult assemblage structure ('others'; i.e. sediment-tolerant coral taxa) in Singapore, but that the replenishment capacity of Singapore's reefs appears relatively constrained, which could lead

  17. Modeling Tides, Planetary Waves, and Equatorial Oscillations in the MLT

    Science.gov (United States)

    Mengel, J. G.; Mayr, H. G.; Drob, D. P.; Porter, H. S.; Bhartia, P. K. (Technical Monitor)

    2001-01-01

    Applying Hines Doppler Spread Parameterization for gravity waves (GW), our 3D model reproduces some essential features that characterize the observed seasonal variations of tides and planetary waves in the upper mesosphere. In 2D, our model also reproduces the large Semi-Annual Oscillation (SAO) and Quasi Biennial Oscillation (QBO) observed in this region at low latitudes. It is more challenging to describe these features combined in a more comprehensive self consistent model, and we give a progress report that outlines the difficulties and reports some success. In 3D, the GW's are partially absorbed by tides and planetary waves to amplify them. Thus the waves are less efficient in generating the QBO and SAO at equatorial latitudes. Some of this deficiency is compensated by the fact that the GW activity is observed to be enhanced at low latitudes. Increasing the GW source has the desired effect to boost the QBO, but the effect is confined primarily to the stratosphere. With increasing altitude, the meridional circulation becomes more important in redistributing the momentum deposited in the background flow by the GW's. Another factor involved is the altitude at which the GW's originate, which we had originally chosen to be the surface. Numerical experiments show that moving this source altitude to the top of the troposphere significantly increases the efficiency for generating the QBO without affecting much the tides and planetary waves in the model. Attention to the details in which the GW source comes into play thus appears to be of critical importance in modeling the phenomenology of the MLT. Among the suite of numerical experiments reported, we present a simulation that produced significant variations of tides and planetary waves in the upper mesosphere. The effect is related to the QBO generated in the model, and GW filtering is the likely cause.

  18. Magnetospheric conditions near the equatorial footpoints of proton isotropy boundaries

    Directory of Open Access Journals (Sweden)

    V. A. Sergeev

    2015-12-01

    Full Text Available Data from a cluster of three THEMIS (Time History of Events and Macroscale Interactions during Substorms spacecraft during February–March 2009 frequently provide an opportunity to construct local data-adaptive magnetospheric models, which are suitable for the accurate mapping along the magnetic field lines at distances of 6–9 Re in the nightside magnetosphere. This allows us to map the isotropy boundaries (IBs of 30 and 80 keV protons observed by low-altitude NOAA POES (Polar Orbiting Environmental Satellites to the equatorial magnetosphere (to find the projected isotropy boundary, PIB and study the magnetospheric conditions, particularly to evaluate the ratio KIB (Rc/rc; the magnetic field curvature radius to the particle gyroradius in the neutral sheet at that point. Special care is taken to control the factors which influence the accuracy of the adaptive models and mapping. Data indicate that better accuracy of an adaptive model is achieved when the PIB distance from the closest spacecraft is as small as 1–2 Re. For this group of most accurate predictions, the spread of KIB values is still large (from 4 to 32, with the median value KIB ~13 being larger than the critical value Kcr ~ 8 expected at the inner boundary of nonadiabatic angular scattering in the current sheet. It appears that two different mechanisms may contribute to form the isotropy boundary. The group with K ~ [4,12] is most likely formed by current sheet scattering, whereas the group having KIB ~ [12,32] could be formed by the resonant scattering of low-energy protons by the electromagnetic ion-cyclotron (EMIC waves. The energy dependence of the upper K limit and close proximity of the latter event to the plasmapause locations support this conclusion. We also discuss other reasons why the K ~ 8 criterion for isotropization may fail to work, as well as a possible relationship between the two scattering mechanisms.

  19. Engineering activities on the ITER representative diagnostic equatorial port plug

    International Nuclear Information System (INIS)

    Meunier, L.; Doceul, L.; Salasca, S.; Martins, J.-P.; Jullien, F.; Dechelle, Christian; Bidaud, Pierre; Pilard, Vincent; Terra, Alexis; Ogea, Mathieu; Ciattaglia, Emanuela; Walker, Christopher

    2009-01-01

    Most of ITER diagnostic systems are integrated in port plugs, which are water cooled stainless steel structures inserted into the vacuum vessel ports. The port plug must provide basic functions such as neutron and gamma shielding, supporting the first wall armour (BSM), closing the vacuum vessel ports, while supporting the diagnostic equipments. ITER diagnostic port plug must resist a severe environment like high temperature due to neutron interaction with the structures and high electromechanical loading during disruptions events. CEA has contributed to the design and integration tasks in the frame of the representative equatorial port plug EQ no. 01, in particular on the engineering, structural and thermal finite element analysis. These detailed analyses have highlighted some design issues which were worked out through different solutions. This paper contains a description of the engineering activities performed such as: -The static mechanical calculations of the top plate closure system under disruption load. -The static mechanical calculations of the BSM attachment to the port plug. These two first studies led to design changes proposals which significantly improved the behaviour of the structures but also showed that the safety margin with respect to design limits is quite low. -The design of a Diagnostic Shield Module (DSM) integrated inside the port plug and a proposition of attachment scheme, with respect to disruption loads. The manufacturing of the DSM has been taken into account, as well as diagnostic integration inside the structure and maintenance aspects. -The thermal assessment of the port plug under neutronic load during normal operation, with the optimization of the cooling system. The maximum temperature calculated in normal operation has been reduced from 900 deg. C to less than 400 deg. C in the front plate; and the cooling arrangement at the back of the port plug has been simplified without important temperature increase.

  20. Engineering activities on the ITER representative diagnostic equatorial port plug

    Energy Technology Data Exchange (ETDEWEB)

    Meunier, L. [Association Euratom CEA, CEA/DSM/IRFM (France)], E-mail: lmeunier@cea.fr; Doceul, L.; Salasca, S.; Martins, J.-P.; Jullien, F.; Dechelle, Christian; Bidaud, Pierre; Pilard, Vincent; Terra, Alexis; Ogea, Mathieu [Association Euratom CEA, CEA/DSM/IRFM (France); Ciattaglia, Emanuela [EFDA CSU, Garching (Germany); Walker, Christopher [ITER International Organisation (France)

    2009-06-15

    Most of ITER diagnostic systems are integrated in port plugs, which are water cooled stainless steel structures inserted into the vacuum vessel ports. The port plug must provide basic functions such as neutron and gamma shielding, supporting the first wall armour (BSM), closing the vacuum vessel ports, while supporting the diagnostic equipments. ITER diagnostic port plug must resist a severe environment like high temperature due to neutron interaction with the structures and high electromechanical loading during disruptions events. CEA has contributed to the design and integration tasks in the frame of the representative equatorial port plug EQ no. 01, in particular on the engineering, structural and thermal finite element analysis. These detailed analyses have highlighted some design issues which were worked out through different solutions. This paper contains a description of the engineering activities performed such as: -The static mechanical calculations of the top plate closure system under disruption load. -The static mechanical calculations of the BSM attachment to the port plug. These two first studies led to design changes proposals which significantly improved the behaviour of the structures but also showed that the safety margin with respect to design limits is quite low. -The design of a Diagnostic Shield Module (DSM) integrated inside the port plug and a proposition of attachment scheme, with respect to disruption loads. The manufacturing of the DSM has been taken into account, as well as diagnostic integration inside the structure and maintenance aspects. -The thermal assessment of the port plug under neutronic load during normal operation, with the optimization of the cooling system. The maximum temperature calculated in normal operation has been reduced from 900 deg. C to less than 400 deg. C in the front plate; and the cooling arrangement at the back of the port plug has been simplified without important temperature increase.

  1. Retrieval and satellite intercomparison of O3 measurements from ground-based FTIR Spectrometer at Equatorial Station: Addis Ababa, Ethiopia

    Directory of Open Access Journals (Sweden)

    T. von Clarmann

    2013-02-01

    Full Text Available Since May 2009, high-resolution Fourier Transform Infrared (FTIR solar absorption spectra have been recorded at Addis Ababa (9.01° N latitude, 38.76° E longitude, 2443 m altitude above sea level, Ethiopia. The vertical profiles and total column amounts of ozone (O3 are deduced from the spectra by using the retrieval code PROFFIT (V9.5 and regularly determined instrumental line shape (ILS. A detailed error analysis of the O3 retrieval is performed. Averaging kernels of the target gas shows that the major contribution to the retrieved information comes from the measurement. The degrees of freedom for signals is found to be 2.1 on average for the retrieval of O3 from the observed FTIR spectra. The ozone Volume Mixing Ratio (VMR profiles and column amounts retrieved from FTIR spectra are compared with the coincident satellite observations of Microwave Limb Sounding (MLS, Michelson Interferometer for Passive Atmospheric Sounding (MIPAS, Tropospheric Emission Spectrometer (TES, Ozone Monitoring Instrument (OMI, Atmospheric Infrared Sounding (AIRS and Global Ozone Monitoring Experiment (GOME-2 instruments. The mean relative differences in ozone profiles of FTIR from MLS and MIPAS are generally lower than 15% within the altitude range of 27 to 36 km, whereas difference from TES is lower than 1%. Comparisons of measurements of column amounts from the satellite and the ground-based FTIR show very good agreement as exhibited by relative differences within +0.2% to +2.8% for FTIR versus MLS and GOME-2; and −0.9 to −9.0% for FTIR versus OMI, TES and AIRS. The corresponding standard deviations are within 2.0 to 2.8% for FTIR versus MLS and GOME-2 comparisons whereas that of FTIR versus OMI, TES and AIRS are within 3.5 to 7.3%. Thus, the retrieved O3 VMR and column amounts from a tropical site, Addis Ababa, is found to exhibit very good agreement with all coincident satellite observations over an approximate 3-yr period.

  2. Apropiação do espaço público pelo comércio ambulante: Fortaleza-Ceará-Brasil em evidência (1975 a 1995)

    OpenAIRE

    Correia Dantas, Eustógio Wanderley

    2007-01-01

    Based on the comprehension of the relationship between city-urban and State-space, the present paper analysis the process of occupation of Fortaleza City (Capital of Ceará, Northeastern Brazil) down-town by  informal commerce between the years of 1975/1995. Working with this temporal-spatial scale, we discuss the action of the State in the organization and control of private appropriation of public space by informal workers, following political interventions of moderni...

  3. "Central Station" Londonis

    Index Scriptorium Estoniae

    2000-01-01

    Londoni galeriis Milch seitsme läti, leedu ja eesti kunstniku projekt "Central Station". Kuraatorid Lisa Panting, Sally Tallant. Eestist osalevad Hanno Soans (Catarina Campinoga koostöös valminud video), Kiwa, Kai Kaljo

  4. Materials Test Station

    Data.gov (United States)

    Federal Laboratory Consortium — When completed, the Materials Test Station at the Los Alamos Neutron Science Center will meet mission need. MTS will provide the only fast-reactor-like irradiation...

  5. Shippingport Station Decommissioning Project

    International Nuclear Information System (INIS)

    McKernan, M.L.

    1989-01-01

    The Shippingport Atomic Power Station was located on the Ohio River in Shippingport Borough (Beaver County), Pennsylvania, USA. The US Atomic Energy Commission (AEC) constructed the plant in the mid-1950s on a seven and half acre parcel of land leased from Duquesne Light Company (DLC). The purposes were to demonstrate and to develop Pressurized Water Recovery technology and to generate electricity. DLC operated the Shippingport plant under supervision of (the successor to AEC) the Department of Energy (DOE)-Naval Reactors (NR) until operations were terminated on October 1, 1982. NR concluded end-of-life testing and defueling in 1984 and transferred the Station's responsibility to DOE Richland Operations Office (RL), Surplus Facility Management Program Office (SFMPO5) on September 5, 1984. SFMPO subsequently established the Shippingport Station Decommissioning Project and selected General Electric (GE) as the Decommissioning Operations Contractor. This report is intended to provide an overview of the Shippingport Station Decommissioning Project

  6. Active Marine Station Metadata

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Active Marine Station Metadata is a daily metadata report for active marine bouy and C-MAN (Coastal Marine Automated Network) platforms from the National Data...

  7. Electrostatic pickup station

    CERN Multimedia

    CERN PhotoLab

    1982-01-01

    Electrostatic pickup station, with 4 interleaved electrodes, to measure beam position in the horizontal and vertical plane. This type is used in the transfer lines leaving the PS (TT2, TT70, TTL2). See also 7904075.

  8. Public Transit Stations

    Data.gov (United States)

    Department of Homeland Security — fixed rail transit stations within the Continental United States, Alaska, Hawaii, the District of Columbia, and Puerto Rico. The modes of transit that are serviced...

  9. Mukilteo Research Station

    Data.gov (United States)

    Federal Laboratory Consortium — Research at the Mukilteo Research Station focuses on understanding the life cycle of marine species and the impacts of ecosystem stressors on anadromous and marine...

  10. Maine Field Station

    Data.gov (United States)

    Federal Laboratory Consortium — In 2000 NOAA's National Marine Fisheries Service established the Maine Field Station in Orono, ME to have more direct involvement in the conservation of the living...

  11. FEMA DFIRM Station Start

    Data.gov (United States)

    Minnesota Department of Natural Resources — This table contains information about station starting locations. These locations indicate the reference point that was used as the origin for distance measurements...

  12. Natural Weathering Exposure Station

    Data.gov (United States)

    Federal Laboratory Consortium — The Corps of Engineers' Treat Island Natural Weathering Exposure Station is a long-term natural weathering facility used to study concrete durability. Located on the...

  13. Routes and Stations

    Data.gov (United States)

    Department of Homeland Security — he Routes_Stations table is composed of fixed rail transit systems within the Continental United States, Alaska, Hawaii, the District of Columbia, and Puerto Rico....

  14. USRCRN Station Information

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Documentation of United States Regional Climate Reference Network (USRCRN) installations in 2009. Installations documented are for USRCRN pilot project stations in...

  15. The Role of Reversed Equatorial Zonal Transport in Terminating an ENSO Event

    Science.gov (United States)

    Chen, H. C.; Hu, Z. Z.; Huang, B.; Sui, C. H.

    2016-02-01

    In this study, we demonstrate that a sudden reversal of anomalous equatorial zonal current at the peaking ENSO phase triggers the rapid termination of an ENSO event. Throughout an ENSO cycle, the anomalous equatorial zonal current is strongly controlled by the concavity of the anomalous thermocline meridional structure near the equator. During the ENSO developing phase, the anomalous zonal current in the central and eastern Pacific generally enhances the ENSO growth through its zonal SST advection. In the mature phase of ENSO, however, the equatorial thermocline depth anomalies are reflected in the eastern Pacific and slowly propagate westward off the equator in both hemispheres. As a result, the concavity of the thermocline anomalies near the equator is reversed, i.e., the off-equatorial thermocline depth anomalies become higher than that on the equator for El Niño events and lower for La Niño events. This meridional change of thermocline structure reverses zonal transport rapidly in the central-to-eastern equatorial Pacific, which weakens the ENSO SST anomalies by reversed advection. More importantly, the reversed zonal mass transport weakens the existing zonal tilting of equatorial thermocline and suppresses the thermocline feedback. Both processes are concentrated in the eastern equatorial Pacific and can be effective on subseasonal time scales. These current reversal effects are built-in to the ENSO peak phase and independent of the zonal wind effect on thermocline slope. It functions as an oceanic control on ENSO evolution during both El Niño and La Niña events.

  16. The role of the Indonesian Throughflow in equatorial Pacific thermocline ventilation

    Science.gov (United States)

    Rodgers, Keith B.; Cane, Mark A.; Naik, Naomi H.; Schrag, Daniel P.

    1999-09-01

    The role of the Indonesian Throughflow (ITF) in the thermocline circulation of the low-latitude Pacific Ocean is explored using a high-resolution primitive equation ocean circulation model. Seasonally forced runs for a domain with an open Indonesian passage are compared with seasonally forced runs for a closed Pacific domain. Three cases are considered: one with no throughflow, one with 10 Sv of imposed ITF transport, and one with 20 Sv of ITF transport. Two idealized tracers, one that tags northern component subtropical water and another that tags southern component subtropical water, are used to diagnose the mixing ratio of northern and southern component waters in the equatorial thermocline. It is found that the mixing ratio of north/south component waters in the equatorial thermocline is highly sensitive to whether the model accounts for an ITF. Without an ITF, the source of equatorial undercurrent water is primarily of North Pacific origin, with the ratio of northern to southern component water being approximately 2.75 to 1. The ratio of northern to southern component water in the Equatorial Undercurrent with 10 Sv of ITF is approximately 1.4 to 1, and the ratio with 20 Sv of imposed ITF is 1 to 1.25. Estimates from data suggest a mean mixing ratio of northern to southern component water of less than 1 to 1. Assuming that the mixing ratio changes approximately linearly as the ITF transport varies between 10 and 20 Sv, an approximate balance between northern and southern component water is reached when the ITF transport is approximately 16 Sv. It is also shown that for the isopycnal surfaces within the core of the equatorial undercurrent, a 2°C temperature front exists across the equator in the western equatorial Pacific, beneath the warm pool. The implications of the model results and the temperature data for the heat budget of the equatorial Pacific are considered.

  17. Multiple embryos, multiple nepionts and multiple equatorial layers in Cycloclypeus carpenteri.

    Science.gov (United States)

    Briguglio, Antonino; Kinoshita, Shunichi; Wolfgring, Erik; Hohenegger, Johann

    2016-04-01

    In this study, 17 specimens of Cycloclypeus carpenteri have been analyzed by means of microCT scanning. We used CT scanning technique as it enables the visualization and the quantifications of internal structures of hollow specimens without their destruction. It has been observed that many specimens possessing the natural morphology of this taxon, actually contain multiple embryos (up to 16 in one single specimen) and, in some few cases, multiple nepionts each with its own heterosteginid chambers (up to three separated nepionts). The diameter of each proloculus has been measured, and as a result, they are very variable even within the same specimen, therefore questioning the long known theory that schizonts have smaller proloculi than gamonts and also questioning the fact that proloculi in the same species should all have comparable size. Furthermore, we have observed the presence of additional equatorial planes on several specimens. Such additional planes are always connected to what seems to be the main equatorial plane. Such connections are T-shaped and are located at the junction between two equatorial layers; these junctions are made by a chamberlet, which possesses an unusually higher number of apertures. The connections between equatorial planes are always perfectly synchronized with the relative growth step and the same chamber can be therefore followed along the multiple equatorial planes. Apparently there is a perfect geometric relationship between the creation of additional equatorial planes and the position of the nepionts. Whenever the nepionts are positioned on different planes, additional planes are created and the angle of the nepionts is related to the banding angle of the equatorial planes. The presence of additional planes do not hamper the life of the cell, on the contrary, it seems that the cell is still able to build nicely shaped chamberlets and, after volumetric calculations, it seems all specimens managed to keep their logistic growth

  18. Gas Stations, US, 2010, NAVTEQ

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Gas_Stations dataset is derived from the Navteq 'AUTOSVC' SDC layer (FAC_TYPE=5540) and contains gas stations and petrol stations. This NAVTEQ dataset is...

  19. Enhanced Master Station History Report

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Enhanced Master Station History Report (EMSHR) is a compiled list of basic, historical information for every station in the station history database, beginning...

  20. Tobruk power station

    Energy Technology Data Exchange (ETDEWEB)

    Boergardts, B

    1978-01-01

    In February of 1975, the Electricity Corporation Benghazi (ECB) awarded a contract for the construction of a turnkey power station and seawater desalination plant in Tobruk, Libya to a consortium under the leadership of BBC Mannheim. This power station has an output of 129 MW and supplies about 24,000 m/sup 3/ of drinking water daily. It went into operation in 1977, two and a half years after the contract was awarded.

  1. Space Station galley design

    Science.gov (United States)

    Trabanino, Rudy; Murphy, George L.; Yakut, M. M.

    1986-01-01

    An Advanced Food Hardware System galley for the initial operating capability (IOC) Space Station is discussed. Space Station will employ food hardware items that have never been flown in space, such as a dishwasher, microwave oven, blender/mixer, bulk food and beverage dispensers, automated food inventory management, a trash compactor, and an advanced technology refrigerator/freezer. These new technologies and designs are described and the trades, design, development, and testing associated with each are summarized.

  2. Leadership at Antarctic Stations.

    Science.gov (United States)

    1987-03-01

    Claseification 6. No. Pegees LEADERSHIP AT ANTARTIC STATIONS hxIs i4 5, C =r~eta(C), 17 Rfs~W (R, Udusiied U)J 7. No Refs 8. Author(s) Edocumesnt I...whether there is a "best" approach to leadership at an Antartic Station and what leadership style may have the most to offer. 3~~ __ ___ Tipesis to be

  3. National Seismic Station

    International Nuclear Information System (INIS)

    Stokes, P.A.

    1982-06-01

    The National Seismic Station was developed to meet the needs of regional or worldwide seismic monitoring of underground nuclear explosions to verify compliance with a nuclear test ban treaty. The Station acquires broadband seismic data and transmits it via satellite to a data center. It is capable of unattended operation for periods of at least a year, and will detect any tampering that could result in the transmission of unauthentic seismic data

  4. The Princess Elisabeth Station

    Science.gov (United States)

    Berte, Johan

    2012-01-01

    Aware of the increasing impact of human activities on the Earth system, Belgian Science Policy Office (Belspo) launched in 1997 a research programme in support of a sustainable development policy. This umbrella programme included the Belgian Scientific Programme on Antarctic Research. The International Polar Foundation, an organization led by the civil engineer and explorer Alain Hubert, was commissioned by the Belgian Federal government in 2004 to design, construct and operate a new Belgian Antarctic Research Station as an element under this umbrella programme. The station was to be designed as a central location for investigating the characteristic sequence of Antarctic geographical regions (polynia, coast, ice shelf, ice sheet, marginal mountain area and dry valleys, inland plateau) within a radius of 200 kilometers (approx.124 miles) of a selected site. The station was also to be designed as "state of the art" with respect to sustainable development, energy consumption, and waste disposal, with a minimum lifetime of 25 years. The goal of the project was to build a station and enable science. So first we needed some basic requirements, which I have listed here; plus we had to finance the station ourselves. Our most important requirement was that we decided to make it a zero emissions station. This was both a philosophical choice as we thought it more consistent with Antarctic Treaty obligations and it was also a logistical advantage. If you are using renewable energy sources, you do not have to bring in all the fuel.

  5. O compartilhamento do cuidado em saúde mental: uma experiência de cogestão de um centro de atenção psicossocial em Fortaleza, CE, apoiada em abordagens psicossociais The partnership in the mental health care: an experience in psicossocial approaches and in the co-management of a mental health community service in Fortaleza/CE

    Directory of Open Access Journals (Sweden)

    Maria Gabriela Curubeto Godoy

    2012-05-01

    Full Text Available Este artigo aborda a trajetória de uma experiência comunitária vinculada a uma organização não governamental, o Movimento de Saúde Mental Comunitária do Bom Jardim e a parceria celebrada entre essa entidade e a Secretaria Municipal de Saúde de Fortaleza. Tal parceria vem proporcionando a expansão de ações psicossociais, bem como a cogestão de um Centro de Atenção Psicossocial tipo II inaugurado em 2005 (CAPS Comunitário do Bom Jardim. Geograficamente situado na Regional V, área com os piores indicadores sociais e sanitários de Fortaleza, o Movimento de Saúde Mental Comunitária do Bom Jardim oferta atividades como Terapia Comunitária, Biodança, Arteterapia, Grupos de autoestima, Massoterapia, Reiki, Shiatsu, Quiropraxia, Oficinas de arte, música e teatro, cursos profissionalizantes e atividades lúdicas e educativas para diversas faixas etárias da população do bairro. A articulação entre as ações implementadas pelo Movimento de Saúde Mental Comunitária do Bom Jardim e a parceria com a Secretaria Municipal de Saúde de Fortaleza apresenta desafios e possibilidades na tentativa de construção da integralidade no campo da atenção psicossocial. Neste artigo apresentamos a trajetória histórica da referida entidade, descrevemos algumas de suas principais atividades e realizamos uma breve análise da parceria com a Secretaria Municipal de Saúde e o processo de cogestão do Centro de Atenção Psicossocial, apontando também alguns desafios e possibilidades encontradas nessa tentativa de convergência entre uma concepção de trabalho comunitário e a lógica burocrático-normativa sobre a qual geralmente se sustenta a atuação de instituições estatais de saúde.This is the report of the partnership experience between a nongovernmental organization that works with Mental Health and the Health Municipal Commission of Fortaleza/Ceará. This partnership has expanded several psychosocial actions as Community Therapy

  6. Motor neuron diseases in the University Hospital of Fortaleza (Northeastern Brazil: a clinico-demographic analysis of 87 cases Doenças do neurônio motor no Hospital Universitário de Fortaleza (Nordeste do Brasil: análise clínico-demográfica de 87 casos

    Directory of Open Access Journals (Sweden)

    CARLOS M. DE CASTRO-COSTA

    2000-12-01

    Full Text Available In this retrospective (1980-1998 study, we have analyzed clinico-demographically, from the records of the University Hospital of Fortaleza (Brazil, a group of 87 patients showing signs and symptoms of motor neuron diseases (MNDs. Their diagnosis was determined clinically and laboratorially. The WFN criteria were used for amyotrophic lateral sclerosis (ALS diagnosis. The clinico-demographic analysis of the 87 cases of MNDs showed that 4 were diagnosed as spinal muscular atrophy (SMA, 5 cases as ALS subsets: 2 as progressive bulbar paralysis (PBP, 2 as progressive muscular atrophy (PMA and 1 as monomelic amyotrophy (MA, and 78 cases of ALS. The latter comprised 51 males and 27 females, with a mean age of 42.02 years. They were sub-divided into 4 groups according to age: from 15 to 29 years (n= 17, 30 to 39 years (n= 18, 40 to 69 years (n= 39 and 70 to 78 years (n= 4. From the 78 ALS patients, 76 were of the classic sporadic form whilst only 2 were of the familial form. The analysis of the 87 patients with MNDs from the University Hospital of Fortaleza showed a predominance of ALS patients, with a high number of cases of juvenile and early onset adult sporadic ALS.Neste estudo retrospectivo (1980-1998, analisamos clínico-demograficamente, a partir dos prontuários do Hospital Universitário de Fortaleza (Brasil, um grupo de 87 pacientes que apresentavam sinais e sintomas de doenças do neurônio motor (DNMs. Eles foram diagnosticados clinicamente, e através de exames complementares. Para o diagnóstico da esclerose lateral amiotrófica (ELA, usamos os critérios da Federação Mundial de Neurologia. A análise clínico-demográfica dos 87 casos de DNMs evidenciou a existência de 4 casos de atrofia muscular espinhal (AME, 5 casos de variantes da ELA: 2 de paralisia bulbar progressiva (PBP, 2 de atrofia muscular progressiva (AMP e 1 de amiotrofia monomélica (AM, e 78 casos de ELA. Esses últimos eram constituídos de 51 homens e 27 mulheres, com

  7. Western blot seroindeterminate individuals for Human T-lymphotropic Virus 1/2 (HTLV-1/2 in Fortaleza (Brazil: a serological and molecular diagnostic and epidemiological approach

    Directory of Open Access Journals (Sweden)

    Santos Terezinha de Jesus Teixeira

    2003-01-01

    Full Text Available How to handle Western blot (WB seroindeterminate individuals for Human T-lymphotropic Virus 1/2 (HTLV-1/2 constitutes a challenge for blood banks and fam ilies. We made a cross-sectional study of 191 enzyme linked immunoassay (EIA reactive individuals from the hematological center (HEMOCE of Fortaleza (Brazil, examining their serological (WB and molecular (PCR diagnosis, and demographic profiles, as well as a possible association of their condition with other infectious pathologies and risk factors. Ethical institutional approval and personal consent were obtained. Out of 191 EIA reactive individuals, 118 were WB seroindeterminate and 73 were seropositive for HTLV-1/2. In the PCR analysis of 41 WB seroindeterminate individuals, 9 (22% were positive and 32 (78% were negative for HTLV-1/2. The demographic analysis indicated a trend towards a predominance of males among the seroindeterminate individuals and females in the seropositive ones. The seroindeterminate individuals were younger than the seropositive ones. We did not find any association of these conditions with syphilis, Chagas disease or HIV or hepatitis, and with risk factors such as breast-feeding, blood transfusion, STD (syphilis and IDU.

  8. Western blot seroindeterminate individuals for Human T-lymphotropic Virus 1/2 (HTLV-1/2 in Fortaleza (Brazil: a serological and molecular diagnostic and epidemiological approach

    Directory of Open Access Journals (Sweden)

    Terezinha de Jesus Teixeira Santos

    Full Text Available How to handle Western blot (WB seroindeterminate individuals for Human T-lymphotropic Virus 1/2 (HTLV-1/2 constitutes a challenge for blood banks and fam ilies. We made a cross-sectional study of 191 enzyme linked immunoassay (EIA reactive individuals from the hematological center (HEMOCE of Fortaleza (Brazil, examining their serological (WB and molecular (PCR diagnosis, and demographic profiles, as well as a possible association of their condition with other infectious pathologies and risk factors. Ethical institutional approval and personal consent were obtained. Out of 191 EIA reactive individuals, 118 were WB seroindeterminate and 73 were seropositive for HTLV-1/2. In the PCR analysis of 41 WB seroindeterminate individuals, 9 (22% were positive and 32 (78% were negative for HTLV-1/2. The demographic analysis indicated a trend towards a predominance of males among the seroindeterminate individuals and females in the seropositive ones. The seroindeterminate individuals were younger than the seropositive ones. We did not find any association of these conditions with syphilis, Chagas disease or HIV or hepatitis, and with risk factors such as breast-feeding, blood transfusion, STD (syphilis and IDU.

  9. Copa do Mundo FIFA Brasil 2014: vigilância ativa e perfil dos atendimentos de saúde na cidade-sede de Fortaleza, Ceará

    Directory of Open Access Journals (Sweden)

    Márcio Henrique de Oliveira Garcia

    Full Text Available Resumo OBJETIVO: descrever a estratégia de vigilância ativa em tempo real e o perfil dos atendimentos de saúde realizados no período da 20ª Copa do Mundo da FIFA Brasil 2014 (CMFB, na cidade-sede de Fortaleza, Ceará, Brasil. MÉTODO: estudo descritivo com dados das fichas de atendimento relacionados à Copa, entre 8/6 e 13/7/2014, nas unidades de saúde pré-selecionadas. RESULTADOS: foram 2.570 atendimentos relacionados à CMFB, 56% de indivíduos do sexo masculino, 35% de 20 a 29 anos de idade, 68% foram atendimentos clínicos, 64% de torcedores/espectadores; 94% dos atendidos foram liberados, 3% removidos, 3% internados e 0,2% idos a óbito; os postos médicos avançados responderam por 79% dos atendimentos, principalmente nos dias de jogos. CONCLUSÃO: não foram identificados eventos de Saúde Pública de grande relevância; a estratégia de vigilância ativa possibilitou monitorar a situação de saúde dos envolvidos no evento.

  10. PERCEPÇÃO DAS MÃES SOBRE ALEITAMENTO EM PREMATUROS DA UNIDADE CANGURU DE UMA MATERNIDADE DE FORTALEZA - CE

    Directory of Open Access Journals (Sweden)

    KARLA MARIA CARNEIRO ROLIM

    2008-01-01

    Full Text Available El objetivo de este estudio fue saber cómo perciben las madres el proceso de lactancia materna en prematuros asistidos en la Unidad Madre Canguro. Estudio descriptivo, con planteo cualitativo, realizado en una maternidad pública, en Fortaleza-CE, en el período de enero a mayo de 2007. Los sujetos sondeados fueron 10 madres que se hallaban con bebés internados en la Unidad. Se utilizó entrevista estructurada en parte, de la cual surgieron las categorías: conocimiento materno sobre el bebé prematuro, percepción de las madres sobre el método madre canguro, apreciación de las madres en amamantar un bebé prematuro y satisfacción con el servicio. El vínculo afectivo del binomio madre e hijo quedó en evidencia y, a su vez, considerado factor significativo en la recuperación del bebé.

  11. Fortalezas y debilidades de los inventarios de cementos para su empleo en análisis de ciclo de vida (ACV

    Directory of Open Access Journals (Sweden)

    Aguado, A.

    2004-04-01

    Full Text Available Life-Cycle Assessment (LCA has become a common and accepted tool for quantifying the environmental impact of products. It is frequently used in some industrial sectors but this is not the case for construction products like cement. Reliable LCA require the use of reliable Life- Cycle Inventories (LCI; this is an important point because in Spain reliable LCI are scarce. An analysis of available LCI of different European cements is presented in this paper. This analysis includes the strengths and weaknesses of such inventories.

    El análisis del ciclo de vida (ACV de productos se ha convertido en una herramienta usual de cuantificación de aspectos medioambientales de los mismos. Esta técnica, está bastante extendida en productos industriales estándar, pero no tanto, en productos del sector de la construcción, como es el cemento. Por otro lado, para la realización de un ACV fiable es necesario contar con inventarios, asimismo fiables, lo cual adquiere gran importancia ya que en España no existen de forma sistemática. En este artículo se hace un análisis de los inventarios públicos a los que se ha tenido acceso, correspondientes a diferentes cementos del ámbito europeo, reflejándose las fortalezas y debilidades de los mismos.

  12. Prevalência e associação de asma e rinite em adolescentes de 13 e 14 anos de Fortaleza, Ceará, Brasil

    Directory of Open Access Journals (Sweden)

    Maria de Fátima Gomes de Luna

    2011-01-01

    Full Text Available Objetivou-se avaliar a prevalência e associação de asma e rinite. Trata-se de estudo transversal envolvendo 3.015 adolescentes de 13-14 anos de Fortaleza, Ceará, Brasil, de escolas públicas e privadas, utilizando-se o protocolo do International Study of Asthma and Allergies in Childhood (ISAAC, em 2006/2007. A prevalência de asma foi 22,6%; de rinite, 43,2% e de rinoconjuntivite, 18,7%, predominando no sexo feminino (p = 0,002, p < 0,001 e p < 0,001, respectivamente e nos adolescentes das escolas privadas (p < 0,001. Entre os adolescentes que relataram asma, a taxa de rinite foi de 64,4% e de rinoconjuntivite, 35,3%. A taxa da associação asma-rinite na população foi de 14,6%, e asma-rinoconjuntivite, 8%, predominando no sexo feminino (p < 0,001 e p < 0,001, respectivamente e associando-se a sibilos com limite da fala (p = 0,037 e p = 0,004, respectivamente. O estudo pode contribuir para alertar os profissionais de saúde quanto à importância da abordagem integrada dessas enfermidades, considerando o conceito da "via aérea única" e buscando opções de tratamento que atuem nas duas condições quando presentes simultaneamente.

  13. “Trabalhadas no feminino”: um estudo sobre corpo, desejo e prostituição travesti em Fortaleza-CE

    Directory of Open Access Journals (Sweden)

    Francisco Jander De Sousa Nogueira

    2012-04-01

    Full Text Available Este trabalho toma como foco de análise travestis que se prostituem na cidade de Fortaleza-Ce. São apresentadas narrativas sobre suas transformações corporais, experiência que engloba um conjunto de processos e vivências. Contrastando com concepções de identidades que privilegiam a coerência e a linearidade, apresento trajetórias e relatos autobiográficos contextualizados por descontinuidades. Travestis efetuam transformações em suas formas físicas, seja com o aval da medicina legal ou na clandestinidade. Entendo que a utilização destes corpos como objeto de desejo expostos nas “ruas” vai além das discussões que permeiam a travestilidade como uma realidade estigmatizada. No trabalho de campo, mobilizei ferramentas metodológicas que permitiram a apreensão de singularidades e de expressividades concernentes à complexa experiência de tentarem “passar por mulher” vinte e quarto horas por dia.

  14. Segmento do Turismo de Negócios para as Agências de Viagem: Perfil de Clientes Corporativos de Fortaleza e Região Metropolitana

    Directory of Open Access Journals (Sweden)

    Keila Cristina Nicolau Mota

    2011-09-01

    Full Text Available O turismo de negócios vem se expandindo no mercado, contribuindo para a geração de emprego e renda, movimentando a economia. Com a globalização, os avanços da tecnologia, além das facilidades de transporte e comunicação, o turismo corporativo tem se tornado expressivo e tem exigido uma maior atenção, no sentido de promover um serviço condizente com as necessidades contemporâneas. Os clientes corporativos das agências de viagem apresentam características próprias e exigem profissionais capacitados. O presente artigo objetiva analisar empresas de Fortaleza e Região Metropolitana que são clientes de agências de viagem. Por meio de uma pesquisa de campo que identificou as principais características e tendências do setor nos meses de maio e junho de 2010, relacionando aspectos típicos do turismo de negócios. O mercado de viagens destes clientes tem contribuído para o desenvolvimento do setor, porém carece de agências que trabalhem a gestão de viagens de forma mais especializada.

  15. Caracterização de crianças e adolescentes atendidos por maus tratos em um hospital de emergência no município de Fortaleza-CE Characterization of maltreated children and adolescents taken into a paediatric emergency health care service in Fortaleza-CE-Brazil

    Directory of Open Access Journals (Sweden)

    Arcelina Maria da Silva

    2001-03-01

    Full Text Available O estudo teve como objetivo caracterizar o perfil da criança e adolescente maltratados e atendidos em um hospital de emergência, no Município de Fortaleza, Ceará. Utilizou-se a pesquisa documental retrospectiva com análise dos formulários da Comissão de Maus Tratos à Infância e Adolescência. Os resultados revelaram que o sexo masculino e a faixa etária de 1 a 5 anos foram os mais atingidos; o principal agressor é o pai biológico e os tipos de violência mais freqüentes foram o hematoma, o abuso sexual e as lesões por objetos cortantes. Conclui-se que o tema requer estudos aprofundados que modifiquem o ambiente em que a criança, adolescente e famílias estão inseridos.This study aimed to characterise the profile of the child and the adolescent who were maltreated and taken into paediatric emergency care in a hospital, in Fortaleza, Ceará. It was used a documented retrospective evaluation. The results showed that the children in the age group of 1-5 years were the most victimised as well as the children of the male sex. The main perpetrator was a biological father and the most frequent kind of violence were hematomas, sexual abuse and wounds by slashing objects. In conclusion, this subject needs to be more investigated for providing changes within the' environment where a child, adolescent and families were inserted.

  16. Occurrence of imposex in Thais haemastoma: possible evidence of environmental contamination derived from organotin compounds in Rio de Janeiro and Fortaleza, Brazil Ocorrência de imposex em Thais haemastoma: possíveis evidências de contaminação ambiental por compostos organotínicos no Rio de Janeiro e em Fortaleza, Brasil

    Directory of Open Access Journals (Sweden)

    Marcos Antonio Fernandez

    2002-04-01

    Full Text Available There are indications that the widespread use of organotin compounds (TBT and TPT as antifoulings, as stabilizers in plastic and as pesticides, has severely affected several species of marine organisms. The most striking effect of TBT and TPT as hormonal disruptors is the development of male organs in females of gastropods, currently denominated imposex. This syndrome can lead to the sterilization and death of affected organisms. The present work gives an overview of the present state of knowledge on imposex occurrence and reports results of a survey conducted in Guanabara Bay, Rio de Janeiro and in several sites along the coast of Fortaleza, Ceará State. Different stages of imposex development were verified in this survey, however, the most prominent levels appeared associated to known spot sources of TBT and TPT.Existem evidências de que a utilização amplamente disseminada de compostos organoestânicos (TBT e TPT como antiincrustantes, estabilizadores em plásticos e como pesticidas tenha afetado severamente diversas espécies de organismos marinhos. O mais característico efeito do TBT e do TPT como desreguladores endócrinos é o desenvolvimento de caracteres sexuais masculinos em fêmeas de gastrópodos, conhecido como imposex. Esta síndrome pode levar à esterelização e morte dos organismos afetados. O presente trabalho apresenta uma vista geral ao estado atual do conhecimento sobre a ocorrência do imposex, e reporta os resultados de um estudo conduzido na Baía de Guanabara, Rio de Janeiro, e ao longo da costa de Fortaleza, no Ceará. Diferentes estágios de desenvolvimento do imposex foram verificados neste estudo, os mais proeminentes parecendo associados às fontes pontuais locais conhecidas de TBT e TPT.

  17. No iron fertilization in the equatorial Pacific Ocean during the last ice age.

    Science.gov (United States)

    Costa, K M; McManus, J F; Anderson, R F; Ren, H; Sigman, D M; Winckler, G; Fleisher, M Q; Marcantonio, F; Ravelo, A C

    2016-01-28

    The equatorial Pacific Ocean is one of the major high-nutrient, low-chlorophyll regions in the global ocean. In such regions, the consumption of the available macro-nutrients such as nitrate and phosphate is thought to be limited in part by the low abundance of the critical micro-nutrient iron. Greater atmospheric dust deposition could have fertilized the equatorial Pacific with iron during the last ice age--the Last Glacial Period (LGP)--but the effect of increased ice-age dust fluxes on primary productivity in the equatorial Pacific remains uncertain. Here we present meridional transects of dust (derived from the (232)Th proxy), phytoplankton productivity (using opal, (231)Pa/(230)Th and excess Ba), and the degree of nitrate consumption (using foraminifera-bound δ(15)N) from six cores in the central equatorial Pacific for the Holocene (0-10,000 years ago) and the LGP (17,000-27,000 years ago). We find that, although dust deposition in the central equatorial Pacific was two to three times greater in the LGP than in the Holocene, productivity was the same or lower, and the degree of nitrate consumption was the same. These biogeochemical findings suggest that the relatively greater ice-age dust fluxes were not large enough to provide substantial iron fertilization to the central equatorial Pacific. This may have been because the absolute rate of dust deposition in the LGP (although greater than the Holocene rate) was very low. The lower productivity coupled with unchanged nitrate consumption suggests that the subsurface major nutrient concentrations were lower in the central equatorial Pacific during the LGP. As these nutrients are today dominantly sourced from the Subantarctic Zone of the Southern Ocean, we propose that the central equatorial Pacific data are consistent with more nutrient consumption in the Subantarctic Zone, possibly owing to iron fertilization as a result of higher absolute dust fluxes in this region. Thus, ice-age iron fertilization in the

  18. Guest investigator program study: Physics of equatorial plasma bubbles

    Science.gov (United States)

    Tsunoda, Roland T.

    1994-01-01

    Plasma bubbles are large-scale (10 to 100 km) depletions in plasma density found in the night-time equatorial ionosphere. Their formation has been found to entail the upward transport of plasma over hundreds of kilometers in altitude, suggesting that bubbles play significant roles in the physics of many of the diverse and unique features found in the low-latitude ionosphere. In the simplest scenario, plasma bubbles appear first as perturbations in the bottomside F layer, which is linearly unstable to the gravitationally driven Rayleigh-Taylor instability. Once initiated, bubbles develop upward through the peak of the F layer into its topside (sometimes to altitudes in excess of 1000 km), a behavior predicted by the nonlinear form of the same instability. While good general agreement has been found between theory and observations, little is known about the detailed physics associated with plasma bubbles. Our research activity centered around two topics: the shape of plasma bubbles and associated electric fields, and the day-to-day variability in the occurrence of plasma bubbles. The first topic was pursued because of a divergence in view regarding the nonlinear physics associated with plasma bubble development. While the development of perturbations in isodensity contours in the bottomside F layer into plasma bubbles is well accepted, some believed bubbles to be cylinder-like closed regions of depleted plasma density that floated upward leaving a turbulent wake behind them (e.g., Woodman and LaHoz, 1976; Ott, 1978; Kelley and Ott, 1978). Our results, summarized in a paper submitted to the Journal of Geophysical Research, consisted of incoherent scatter radar measurements that showed unambiguously that the depleted region is wedgelike and not cylinderlike, and a case study and modeling of SM-D electric field instrument (EFI) measurements that showed that the absence of electric-field perturbations outside the plasma-depleted region is a distinct signature of wedge

  19. Reflection of equatorial Kelvin waves at eastern ocean boundaries Part I: hypothetical boundaries

    Directory of Open Access Journals (Sweden)

    J. Soares

    1999-06-01

    Full Text Available A baroclinic shallow-water model is developed to investigate the effect of the orientation of the eastern ocean boundary on the behavior of equatorial Kelvin waves. The model is formulated in a spherical polar coordinate system and includes dissipation and non-linear terms, effects which have not been previously included in analytical approaches to the problem. Both equatorial and middle latitude response are considered given the large latitudinal extent used in the model. Baroclinic equatorial Kelvin waves of intraseasonal, seasonal and annual periods are introduced into the domain as pulses of finite width. Their subsequent reflection, transmission and dissipation are investigated. It is found that dissipation is very important for the transmission of wave energy along the boundary and for reflections from the boundary. The dissipation was found to be dependent not only on the presence of the coastal Kelvin waves in the domain, but also on the period of these coastal waves. In particular the dissipation increases with wave period. It is also shown that the equatorial β-plane approximation can allow an anomalous generation of Rossby waves at higher latitudes. Nonlinearities generally have a small effect on the solutions, within the confines of this model.Key words. Oceanography: general (equatorial oceanography; numerical modeling · Oceanography: physical (eastern boundary currents

  20. Morphology of equatorial plasma bubbles during low and high solar activity years over Indian sector

    Science.gov (United States)

    Kumar, Sanjay

    2017-05-01

    In the present study, slant total electron content (STEC) data computed from ground based GPS measurements over Hyderabad (Geog. Lat. 17.41° N, geog. long. 78.55° E, mag. lat. 08.81° N) and two close stations at Bangalore (Geog. Lat. 13.02°/13.03° N, geog. long. 77.57°/77.51° E, mag. lat. 04.53°/04.55° N) in Indian region during 2007-2012, have been used to study the occurrences and characteristics of equatorial plasma bubbles (EPBs). The analysis found maximum EPB occurrences during the equinoctial months and minimum during the December solstice throughout 2007-2012 except during the solar minimum years in 2007-2009. During 2007-2009, the maximum EPB occurrences were observed in June solstice which could not be predicted by the model proposed by Tsunoda (J. Geophys. Res., 90:447-456, 1985). The equinox maximum in EPB occurrences for high solar activity years could be caused by the vertical F-layer drift due to pre-reversal electric field (PRE), and expected to be maximum when day-night terminator aligns with the magnetic meridian i.e. during the equinox months whereas maximum occurrences during the solstice months of solar minimum could be caused by the seed perturbation in plasma density induced by gravity waves from tropospheric origins. Generally EPB occurrences are found to be more prominent during nighttime hours (2000-2400 hours) than the daytime hours. Peak in EPB occurrences is in early night for high solar activity years whereas same is late night for low solar activity. The day and nighttime EPB occurrences have been analyzed and found to vary in accordance with solar activity with an annual correlation coefficient (R) of ˜0.99 with F_{10.7} cm solar Flux. Additionally, solar activity influence on EPB occurrences is seasonal dependent with a maximum influence during the equinox season (R=0.88) and a minimum during winter season (R =0.73). The solar activity influences on EPB occurrences are found in agreement with the previous works reported in

  1. Characteristics of equatorial ionization anomaly (EIA) in relation to transionospheric satellite links around the northern crest in the Indian longitude sector

    Science.gov (United States)

    Das, A.; Paul, K. S.; Halder, S.; Basu, K.; Paul, A.

    2014-02-01

    The poleward gradient of the equatorial ionization anomaly (EIA) introduces more intense propagation effects on transionospheric satellite links in comparison to the equatorward gradient. Characterization of the poleward gradient was performed during March-April, August-October 2011 and March-April 2012 using GPS total electron content (TEC) recorded from a chain of stations located more or less along the same meridian (88.5° E) at Calcutta, Baharampore, Farakka and Siliguri. The poleward gradients calculated on magnetically quiet days at elevation in excess of 50° at 14:00, 15:00 and 16:00 LT were found to have a strong correlation with GPS S4 observed from Calcutta during post-sunset-to-midnight hours. A threshold value of poleward TEC gradient is calculated above which there is a probability of scintillation at Calcutta with S4 ≥ 0.4.

  2. Characteristics of equatorial ionization anomaly (EIA in relation to transionospheric satellite links around the northern crest in the Indian longitude sector

    Directory of Open Access Journals (Sweden)

    A. Das

    2014-02-01

    Full Text Available The poleward gradient of the equatorial ionization anomaly (EIA introduces more intense propagation effects on transionospheric satellite links in comparison to the equatorward gradient. Characterization of the poleward gradient was performed during March–April, August–October 2011 and March–April 2012 using GPS total electron content (TEC recorded from a chain of stations located more or less along the same meridian (88.5° E at Calcutta, Baharampore, Farakka and Siliguri. The poleward gradients calculated on magnetically quiet days at elevation in excess of 50° at 14:00, 15:00 and 16:00 LT were found to have a strong correlation with GPS S4 observed from Calcutta during post-sunset-to-midnight hours. A threshold value of poleward TEC gradient is calculated above which there is a probability of scintillation at Calcutta with S4 ≥ 0.4.

  3. UMTS Network Stations

    Science.gov (United States)

    Hernandez, C.

    2010-09-01

    The weakness of small island electrical grids implies a handicap for the electrical generation with renewable energy sources. With the intention of maximizing the installation of photovoltaic generators in the Canary Islands, arises the need to develop a solar forecasting system that allows knowing in advance the amount of PV generated electricity that will be going into the grid, from the installed PV power plants installed in the island. The forecasting tools need to get feedback from real weather data in "real time" from remote weather stations. Nevertheless, the transference of this data to the calculation computer servers is very complicated with the old point to point telecommunication systems that, neither allow the transfer of data from several remote weather stations simultaneously nor high frequency of sampling of weather parameters due to slowness of the connection. This one project has developed a telecommunications infrastructure that allows sensorizadas remote stations, to send data of its sensors, once every minute and simultaneously, to the calculation server running the solar forecasting numerical models. For it, the Canary Islands Institute of Technology has added a sophisticated communications network to its 30 weather stations measuring irradiation at strategic sites, areas with high penetration of photovoltaic generation or that have potential to host in the future photovoltaic power plants connected to the grid. In each one of the stations, irradiance and temperature measurement instruments have been installed, over inclined silicon cell, global radiation on horizontal surface and room temperature. Mobile telephone devices have been installed and programmed in each one of the weather stations, which allow the transfer of their data taking advantage of the UMTS service offered by the local telephone operator. Every minute the computer server running the numerical weather forecasting models receives data inputs from 120 instruments distributed

  4. Variation in the diel vertical distributions of larvae and transforming stages of oceanic fishes across the tropical and equatorial Atlantic

    Science.gov (United States)

    Olivar, M. Pilar; Contreras, Tabit; Hulley, P. Alexander; Emelianov, Mikhail; López-Pérez, Cristina; Tuset, Víctor; Castellón, Arturo

    2018-01-01

    The vertical distributions of early developmental stages of oceanic fishes were investigated across the tropical and equatorial Atlantic, from oligotrophic waters close to the Brazilian coast to more productive waters close to the Mauritanian Upwelling Region. Stratification of the water column was observed throughout the study region. Fishes were caught with a MOCNESS-1 net with mouth area of 1 m2 at 11 stations. Each station was sampled both during the day and at night within a single 24-h period. The investigation covered both larvae and transforming stages from the surface to 800 m depth. Distribution patterns were analysed, and weighted mean depths for the larvae and transforming stages of each species were calculated for day and night conditions. Forty-seven different species were found. The highest number of species occurred in the three stations south of Cape Verde Islands, characterized by a mixture of South Atlantic Central Water (SACW) and Eastern North Atlantic Central Water (ENACW). There was a marked drop in species richness in the three stations closer to the African upwelling, dominated by ENACW. The highest abundances occurred in the families Myctophidae, Sternoptychidae, Gonostomatidae and Phosichthyidae. Day and night vertical distributions of larvae and transforming stages showed contrasting patterns, both in the depths of the main concentration layers in the water column, and in the diel migration patterns (where these were observed). Larvae generally showed a preference for the upper mixed layer (ca. 0-50 m) and upper thermocline (ca. 50-100 m), except for sternoptychids, which were also abundant in the lower thermocline layer (100-200 m) and even extended into the mesopelagic zone (down to 500 m). Transforming stages showed a more widespread distribution, with main concentrations in the mesopelagic zone (200-800 m). Larvae showed peak concentrations in the more illuminated and zooplankton-rich upper mixed layers during the day and a wider

  5. Nonlinear Rayleigh-Taylor instability in partially ionized plasma and the equatorial spread - F

    International Nuclear Information System (INIS)

    Jain, R.K.; Das, A.C.

    1978-01-01

    The nonlinear evolution of the collisional gravitation induced Rayleigh-Taylor (R-T) instability in the equatorial F region is investigated taking into account the finite Larmor radius (FLR) effects and the complete ion inertial term in ion equation of motion. A special class of coherent weakly nonlinear modes as solutions to the wave equation describing R-T instability driven modes is obtained. The leading nonlinear effects in the wave equation are found to appear through Vsub(L), the ion diamagnetic drift which essentially gives the FLR corrections. It is shown that the R-T modes in the equatorial F region can evolve into coherent, nonlinear, almost sinusoidal, stationary wave structures. These structures are found to travel with a constant phase velocity and to have slightly distorted sinusoidal shapes. These results seem to have a good agreement with many of the recent rocket and satellite observations of the equatorial spread F irregularities. (author)

  6. Typical disturbances of the daytime equatorial F region observed with a high-resolution HF radar

    Directory of Open Access Journals (Sweden)

    E. Blanc

    1998-06-01

    Full Text Available HF radar measurements were performed near the magnetic equator in Africa (Korhogo 9°24'63''N–5°37'38''W during the International Equatorial Electrojet Year (1993–1994. The HF radar is a high-resolution zenithal radar. It gives ionograms, Doppler spectra and echo parameters at several frequencies simultaneously. This paper presents a comparative study of the daytime ionospheric structures observed during 3 days selected as representative of different magnetic conditions, given by magnetometer measurements. Broad Doppler spectra, large echo width, and amplitude fluctuations revealed small-scale instability processes up to the F-region peak. The height variations measured at different altitudes showed gravity waves and larger-scale disturbances related to solar daytime influence and equatorial electric fields. The possibility of retrieving the ionospheric electric fields from these Doppler or height variation measurements in the presence of the other possible equatorial ionospheric disturbances is discussed.

  7. Detection of radiation from a heated and modulated equatorial electrojet current system

    International Nuclear Information System (INIS)

    Lunnen, R.J.; Lee, H.S.; Ferraro, A.J.; Collins, T.W.

    1984-01-01

    In May 1983, ionospheric heating experiments were conducted using the very high frequency radar facility at Lima, Peru. Experiments involving high frequency heating of the ionosphere were successfully conducted during 1982 at Islote, Puerto Rico. These local experiments had characterized the signal radiated from a heated and modulated ionospheric current system near the mid-latitudes. A long-path signal had also been received in September 1982 at Salinas, Puerto Rico from a mid-day equatorial electrojet, heated and modulated by the Jicamarca facility. The authors have investigated the characteristics of the local signal that would be radiated from a strong equatorial electrojet when heated and modulated, and report here that at the geomagnetic equator they were similar to, but less intense than, those observed at Arecibo, Puerto Rico due to parameter differences. This radiation is believed to be the first detected from a heated and modulated equatorial electrojet current system in the Western Hemisphere. (author)

  8. Anthropogenic 236U recorded in annually banded coral skeleton at Majuro atoll, the equatorial Pacific

    International Nuclear Information System (INIS)

    Sakaguchi, Aya; Eto, Asuka; Takahashi, Yoshio; Steier, Peter; Yamazaki, Atsuko; Watanabe, Tsuyoshi; Sasaki, Keiichi; Yamano, Hiroya

    2013-01-01

    Historical 236 U/ 238 U atom ratio and concentration of 236 U were determined by Accelerator Mass Spectrometry (AMS) in skeletons of dated modern coral core sample collected from Majuro atoll, equatorial Pacific, to reconstruct anthropogenic 236 U inputs to the Equatorial Pacific. The maximum hydrogen bomb-pulses of 236 U/ 238 U and 236 U concentration, 2.83x10 -9 and 1.85x10 7 atom/g, in an annually resolved coral core were captured in 1954 (Operation Castle at Bikini and Enewetok atolls). The values were abruptly decreased in a few years, and they have been gradually decreased over time. Our results allow studies of not only the present distribution pattern, but gives access to the temporal evolution of 236 U in surface seawater of North Equatorial Current which is introduced to the Japan Sea and the North West Pacific Ocean as Kuroshio and Tsushima currents over the past decades. (author)

  9. Effects of the equatorial ionosphere on L-band Earth-space transmissions

    Science.gov (United States)

    Smith, Ernest K.; Flock, Warren L.

    1993-01-01

    Ionosphere scintillation can effect satellite telecommunication up to Ku-band. Nighttime scintillation can be attributed to large-scale inhomogeneity in the F-region of the ionosphere predominantly between heights of 200 and 600 km. Daytime scintillation has been attributed to sporadic E. It can be thought of as occurring in three belts: equatorial, high-latitude, and mid-latitude, in order of severity. Equatorial scintillation occurs between magnetic latitudes +/- 25 degrees, peaking near +/- 10 degrees. It commonly starts abruptly near 2000 local time and dies out shortly after midnight. There is a strong solar cycle dependence and a seasonal preference for the equinoxes, particularly the vernal one. Equatorial scintillation occurs more frequently on magnetically quiet than on magnetically disturbed days in most longitudes. At the peak of the sunspot cycle scintillation depths as great as 20 dB were observed at L-band.

  10. Larger CO2 source at the equatorial Pacific during the last deglaciation

    Science.gov (United States)

    Kubota, Kaoru; Yokoyama, Yusuke; Ishikawa, Tsuyoshi; Obrochta, Stephen; Suzuki, Atsushi

    2014-01-01

    While biogeochemical and physical processes in the Southern Ocean are thought to be central to atmospheric CO2 rise during the last deglaciation, the role of the equatorial Pacific, where the largest CO2 source exists at present, remains largely unconstrained. Here we present seawater pH and pCO2 variations from fossil Porites corals in the mid equatorial Pacific offshore Tahiti based on a newly calibrated boron isotope paleo-pH proxy. Our new data, together with recalibrated existing data, indicate that a significant pCO2 increase (pH decrease), accompanied by anomalously large marine 14C reservoir ages, occurred following not only the Younger Dryas, but also Heinrich Stadial 1. These findings indicate an expanded zone of equatorial upwelling and resultant CO2 emission, which may be derived from higher subsurface dissolved inorganic carbon concentration. PMID:24918354

  11. Geology of the Venus equatorial region from Pioneer Venus radar imaging

    International Nuclear Information System (INIS)

    Senske, D.A.; Head, J.W.

    1989-01-01

    The surface characteristics and morphology of the equatorial region of Venus were first described by Masursky et al. who showed this part of the planet to be characterized by two topographic provinces, rolling plains and highlands, and more recently by Schaber who described and interpreted tectonic zones in the highlands. Using Pioneer Venus (PV) radar image data (15 deg S to 45 deg N), Senske and Head examined the distribution, characteristics, and deposits of individual volcanic features in the equatorial region, and in addition classified major equatorial physiographic and tectonic units on the basis of morphology, topographic signature, and radar properties derived from the PV data. Included in this classification are: plains (undivided), inter-highland tectonic zones, tectonically segmented linear highlands, upland rises, tectonic junctions, dark halo plains, and upland plateaus. In addition to the physiographic units, features interpreted as coronae and volcanic mountains have also been mapped. The latter four of the physiographic units along with features interpreted to be coronae

  12. Sensitivity of equatorial Pacific and Indian Ocean watermasses to the position of the Indonesian Throughflow

    Science.gov (United States)

    Rodgers, Keith B.; Latif, Mojib; Legutke, Stephanie

    2000-09-01

    The sensitivity of the thermal structure of the equatorial Pacific and Indian Ocean pycnoclines to a model's representation of the Indonesian Straits connecting the two basins is investigated. Two integrations are performed using the global HOPE ocean model. The initial conditions and surface forcing for both cases are identical; the only difference between the runs is that one has an opening for the Indonesian Straits which spans the equator on the Pacific side, and the other has an opening which lies fully north of the equator. The resulting sensitivity throughout much of the upper ocean is greater than 0.5°C for both the equatorial Indian and Pacific. A realistic simulation of net Indonesian Throughflow (ITF) transport (measured in Sverdrups) is not sufficient for an adequate simulation of equatorial watermasses. The ITF must also contain a realistic admixture of northern and southern Pacific source water.

  13. Hydrogen Fuelling Stations

    DEFF Research Database (Denmark)

    Rothuizen, Erasmus Damgaard

    . A system consisting of one high pressure storage tank is used to investigate the thermodynamics of fuelling a hydrogen vehicle. The results show that the decisive parameter for how the fuelling proceeds is the pressure loss in the vehicle. The single tank fuelling system is compared to a cascade fuelling......This thesis concerns hydrogen fuelling stations from an overall system perspective. The study investigates thermodynamics and energy consumption of hydrogen fuelling stations for fuelling vehicles for personal transportation. For the study a library concerning the components in a hydrogen fuelling...... station has been developed in Dymola. The models include the fuelling protocol (J2601) for hydrogen vehicles made by Society of Automotive Engineers (SAE) and the thermodynamic property library CoolProp is used for retrieving state point. The components in the hydrogen fuelling library are building up...

  14. Hydrogen vehicle fueling station

    Energy Technology Data Exchange (ETDEWEB)

    Daney, D.E.; Edeskuty, F.J.; Daugherty, M.A. [Los Alamos National Lab., NM (United States)] [and others

    1995-09-01

    Hydrogen fueling stations are an essential element in the practical application of hydrogen as a vehicle fuel, and a number of issues such as safety, efficiency, design, and operating procedures can only be accurately addressed by a practical demonstration. Regardless of whether the vehicle is powered by an internal combustion engine or fuel cell, or whether the vehicle has a liquid or gaseous fuel tank, the fueling station is a critical technology which is the link between the local storage facility and the vehicle. Because most merchant hydrogen delivered in the US today (and in the near future) is in liquid form due to the overall economics of production and delivery, we believe a practical refueling station should be designed to receive liquid. Systems studies confirm this assumption for stations fueling up to about 300 vehicles. Our fueling station, aimed at refueling fleet vehicles, will receive hydrogen as a liquid and dispense it as either liquid, high pressure gas, or low pressure gas. Thus, it can refuel any of the three types of tanks proposed for hydrogen-powered vehicles -- liquid, gaseous, or hydride. The paper discusses the fueling station design. Results of a numerical model of liquid hydrogen vehicle tank filling, with emphasis on no vent filling, are presented to illustrate the usefulness of the model as a design tool. Results of our vehicle performance model illustrate our thesis that it is too early to judge what the preferred method of on-board vehicle fuel storage will be in practice -- thus our decision to accommodate all three methods.

  15. Equatorial electrojet as part of the global circuit: a case-study from the IEEY

    Directory of Open Access Journals (Sweden)

    A. T. Kobea

    Full Text Available Geomagnetic storm-time variations often occur coherently at high latitude and the day-side dip equator where they affect the normal eastward Sq field. This paper presents an analysis of ground magnetic field and ionospheric electrodynamic data related to the geomagnetic storm which occured on 27 May 1993 during the International Equatorial Electrojet Year (IEEY experiment. This storm-signature analysis on the auroral, mid-latitude and equatorial ground field and ionospheric electrodynamic data leads to the identification of a sensitive response of the equatorial electrojet (EEJ to large-scale auroral return current: this response consists in a change of the eastward electric field during the pre-sunrise hours (0400-0600 UT coherently to the high-, mid-, and equatorial-latitude H decrease and the disappearance of the EEJ irregularities between the time-interval 0800-0950 UT. Subsequent to the change in h'F during pre-sunrise hours, the observed foF2 increase revealed an enhancement of the equatorial ionization anomaly (EIA caused by the high-latitude penetrating electric field. The strengthening of these irregularities attested by the Doppler frequency increase tracks the H component at the equator which undergoes a rapid increase around 0800 UT. The ∆H variations observed at the equator are the sum of the following components: SR, DP, DR, DCF and DT.

    Keywords. Equatorial electrojet · Magnetosphere-ionosphere interactions · Electric fields and currents · Auroral ionosphere · Ionospheric disturbances

  16. Space Station Habitability Research

    Science.gov (United States)

    Clearwater, Yvonne A.

    1988-01-01

    The purpose and scope of the Habitability Research Group within the Space Human Factors Office at the NASA/Ames Research Center is described. Both near-term and long-term research objectives in the space human factors program pertaining to the U.S. manned Space Station are introduced. The concept of habitability and its relevancy to the U.S. space program is defined within a historical context. The relationship of habitability research to the optimization of environmental and operational determinants of productivity is discussed. Ongoing habitability research efforts pertaining to living and working on the Space Station are described.

  17. Relação usuária-profissional de saúde: experiência de uma mulher homossexual em uma unidade de saúde de referência de Fortaleza Relación usuaria-profesional de salud: experiencia de una mujer homosexual en una unidad de salud de referencia de Fortaleza The health professional-user relationship: experience of a homosexual woman in a renowned Fortaleza health unit

    Directory of Open Access Journals (Sweden)

    Maria Alix Leite de Araújo

    2006-08-01

    Full Text Available A relação usuária-profissional de saúde é essencial para a qualidade do atendimento, especialmente nos serviços de atenção à saúde da mulher, onde a abordagem da sexualidade deve ser objeto de considerada relevância. Tem-se como objetivo descrever a experiência vivenciada por uma mulher homossexual atendida em uma unidade de saúde. Desenvolveu-se um relato de experiência. Em virtude de a revelação da homossexualidade feminina não constituir prática comum nos serviços de saúde, optou-se por um estudo de caso mediante descrição da experiência de atendimento de uma mulher homossexual em uma unidade de saúde de referência de Fortaleza-CE no segundo semestre de 2004. Desenvolveu-se entrevista aberta com a seguinte pergunta norteadora: Fale-me da sua experiência com o atendimento na unidade de saúde. Os dados foram analisados utilizando-se duas categorias temáticas: O atendimento recebido na unidade e a comunicação com o profissional de saúde. Conforme se concluiu, foi possível iniciar uma reflexão sobre a fragilidade das relações interpessoais entre as mulheres homossexuais e os serviços de saúde. Apesar de estas terem acesso ao serviço via setor de ginecologia, o desenvolvimento do processo de comunicação é muito superficial e deixa de elucidar questões importantes do exercício da sexualidade, perdendo-se, conseqüentemente, a oportunidade de desenvolver um trabalho educativo na prevenção das DST e, inclusive, do HIV.La relación usuaria-profesional de salud es esencial para la calidad de la atención, especialmente en los servicios de atención a la salud de la mujer, donde el abordaje de la sexualidad debe ser objeto de considerable relevancia. Se tiene como objetivo describir la experiencia vivenciada por una mujer homosexual atendida en una unidad de salud. Se desarrolló un relato de experiencia. Como la revelación de la homosexualidad femenina no constituye una práctica común en los servicios de

  18. Observation of low energy particle precipitation at low altitude in the equatorial zone

    Science.gov (United States)

    Miah, M. A.

    1989-01-01

    Precipitation of protons in the equatorial zone was investigated by the Phoenix-1 experiment on the S81-1 mission from May to November, 1982. The protons show a precipitation peak along the line of minimum magnetic field strength with a FWHM of 13 deg. The index of equatorial pitch angle distribution is about 19. The peak proton flux shows a fifth-power altitude dependence, and the proton flux shows approximately a factor of 3 times increase in 1982 compared to that in 1969 due, possibly, to the stronger solar maximum conditions of 10.7-cm radiation in 1982.

  19. Concept development for the ITER equatorial port visible/infrared wide angle viewing system

    International Nuclear Information System (INIS)

    Reichle, R.; Beaumont, B.; Boilson, D.; Bouhamou, R.; Direz, M.-F.; Encheva, A.; Henderson, M.; Kazarian, F.; Lamalle, Ph.; Lisgo, S.; Mitteau, R.; Patel, K. M.; Pitcher, C. S.; Pitts, R. A.; Prakash, A.; Raffray, R.; Schunke, B.; Snipes, J.; Diaz, A. Suarez; Udintsev, V. S.

    2012-01-01

    The ITER equatorial port visible/infrared wide angle viewing system concept is developed from the measurement requirements. The proposed solution situates 4 viewing systems in the equatorial ports 3, 9, 12, and 17 with 4 views each (looking at the upper target, the inner divertor, and tangentially left and right). This gives sufficient coverage. The spatial resolution of the divertor system is 2 times higher than the other views. For compensation of vacuum-vessel movements, an optical hinge concept is proposed. Compactness and low neutron streaming is achieved by orienting port plug doglegs horizontally. Calibration methods, risks, and R and D topics are outlined.

  20. Instabilities associated with the equatorial spread-F phenomenon and their north-south asymmetry

    International Nuclear Information System (INIS)

    Beghin, C.; Pandey, R.; Roux, D.

    1985-01-01

    Six North to South passes of AUREOL/ARCAD 3 satellite through the equatorial electron density depletion at variable altitude between 400 and 550 km, at night, during a two weeks period, exhibit a similar feature in plasma density irregularities which are thought to be associated with spread F phenomenon. The irregularities are found to be quasi-sinusoidal with a scale size of about 2 km along the satellite trajectory and occur only on the Northern edge of the equatorial electron density depletion. This implies a violation of the generally believed principle of conjugate mapping for those wavelengths. These observations are analysed and discussed in terms of different known generation mechanisms

  1. Collisional Rayleigh-Taylor instability and shear-flow in equatorial Spread-F plasma

    Directory of Open Access Journals (Sweden)

    N. Chakrabarti

    2003-05-01

    Full Text Available Collisional Rayleigh-Taylor (RT instability is considered in the bottom side of the equatorial F-region. By a novel nonmodal calculation it is shown that for an applied shear flow in equilibrium, the growth of the instability is considerably reduced. Finite but small amounts of diffusion enhances the stabilization process. The results may be relevant to the observations of long-lived irregularities at the bottom-side of the F-layer.Key words. Ionosphere (ionospheric irregularities, equatorial ionosphere, plasma waves and instabilities

  2. The physical and theoretical basis of solar-terrestrial relationships 2. Non-equatorial locations

    International Nuclear Information System (INIS)

    Njau, E.C.

    1988-07-01

    The basic formulations presented in Part 1 of this series (hereinafter simply referred to as ''Paper 1'') are modified in order to mathematically represent the expected solar-terrestrial influences in non-equatorial regions. Analysis and interpretation of these formulations lead to the establishment of several new periodicities as well as other features associated with the non-equatorial atmosphere. Besides, we show through suitable examples that the physical processes that cause and influence some previously observed climatic and upper atmospheric variations in temperate and polar regions are easily deduced from our formulations. (author). 35 refs

  3. Unique Capabilities of the Situational Awareness Sensor Suite for the ISS (SASSI) Mission Concept to Study the Equatorial Ionosphere

    Science.gov (United States)

    Habash Krause, L.; Gilchrist, B. E.; Minow, J. I.; Gallagher, D. L.; Hoegy, W. R.; Coffey, V. N.; Willis, E. M.

    2014-12-01

    We present an overview of a mission concept named Situational Awareness Sensor Suite for the ISS (SASSI) with a special focus here on low-latitude ionospheric plasma turbulence measurements relevant to equatorial spread-F. SASSI is a suite of sensors that improves Space Situational Awareness for the ISS local space environment, as well as unique ionospheric measurements and support active plasma experiments on the ISS. As such, the mission concept has both operational and basic research objectives. We will describe two compelling measurement techniques enabled by SASSI's unique mission architecture. That is, SASSI provides new abilities to 1) measure space plasma potentials in low Earth orbit over ~100 m relative to a common potential, and 2) to investigate multi-scale ionospheric plasma turbulence morphology simultaneously of both ~ 1 cm and ~ 10 m scale lengths. The first measurement technique will aid in the distinction of vertical drifts within equatorial plasma bubbles from the vertical motions of the bulk of the layer due to zonal electric fields. The second will aid in understanding ionospheric plasma turbulence cascading in scale sizes that affect over the horizon radar. During many years of ISS operation, we have conducted effective (but not perfect) human and robotic extravehicular activities within the space plasma environment surrounding the ISS structure. However, because of the complexity of the interaction between the ISS and the space environment, there remain important sources of unpredictable environmental situations that affect operations. Examples of affected systems include EVA safety, solar panel efficiency, and scientific instrument integrity. Models and heuristically-derived best practices are well-suited for routine operations, but when it comes to unusual or anomalous events or situations, there is no substitute for real-time monitoring. SASSI is being designed to deploy and operate a suite of low-cost, medium/high-TRL plasma sensors on

  4. Global equatorial sea-surface temperatures over the last 150,000 years: An update from foraminiferal elemental analysis

    Digital Repository Service at National Institute of Oceanography (India)

    Saraswat, R.

    for the warmest waters. However, how the equatorial SST affects global climate, is still not clear. Long-term past seawater temperature records are required to understand the effect of temporal changes in equatorial SST on the global climate. Various techniques...

  5. Power station instrumentation

    International Nuclear Information System (INIS)

    Jervis, M.W.

    1993-01-01

    Power stations are characterized by a wide variety of mechanical and electrical plant operating with structures, liquids and gases working at high pressures and temperatures and with large mass flows. The voltages and currents are also the highest that occur in most industries. In order to achieve maximum economy, the plant is operated with relatively small margins from conditions that can cause rapid plant damage, safety implications, and very high financial penalties. In common with other process industries, power stations depend heavily on control and instrumentation. These systems have become particularly significant, in the cost-conscious privatized environment, for providing the means to implement the automation implicit in maintaining safety standards, improving generation efficiency and reducing operating manpower costs. This book is for professional instrumentation engineers who need to known about their use in power stations and power station engineers requiring information about the principles and choice of instrumentation available. There are 8 chapters; chapter 4 on instrumentation for nuclear steam supply systems is indexed separately. (Author)

  6. Shippingport Station Decommissioning Project

    International Nuclear Information System (INIS)

    1989-01-01

    This Topical Report is a synopsis of the decontamination of plant components and structures at the Shippingport Station Decommissioning Project (SSDP). The information is provided as a part of the Technology Transfer Program to document the preparation activities in support of the shipment of radioactive wastes and the unconditional release of the site and structural materials. 1 ref., 16 figs., 4 tabs

  7. Galileo Station Keeping Strategy

    Science.gov (United States)

    Perez-Cambriles, Antonio; Bejar-Romero, Juan Antonio; Aguilar-Taboada, Daniel; Perez-Lopez, Fernando; Navarro, Daniel

    2007-01-01

    This paper presents analyses done for the design and implementation of the Maneuver Planning software of the Galileo Flight Dynamics Facility. The station keeping requirements of the constellation have been analyzed in order to identify the key parameters to be taken into account in the design and implementation of the software.

  8. Designing a Weather Station

    Science.gov (United States)

    Roman, Harry T.

    2012-01-01

    The collection and analysis of weather data is crucial to the location of alternate energy systems like solar and wind. This article presents a design challenge that gives students a chance to design a weather station to collect data in advance of a large wind turbine installation. Data analysis is a crucial part of any science or engineering…

  9. Avoiding Service Station Fraud.

    Science.gov (United States)

    Burton, Grace M.; Burton, John R.

    1982-01-01

    High school students are warned against service station fraud. A problem-solving section is designed to help students calculate consumer costs for various fraudulent transactions. Several ways of reducing fraud or of lessening the chances of problems are noted. (MP)

  10. The Service Station.

    Science.gov (United States)

    Ohio State Univ., Columbus. Center for Vocational and Technical Education.

    The purpose of the teacher's guide is to encourage the primary student to expand his or her awareness of jobs within the community. The role of the service station worker is examined, with emphasis on the goods and services provided. Subject areas for which the materials in this guide have potential are social studies, art, and language. Each set…

  11. Electrostatic pickup station

    CERN Multimedia

    CERN PhotoLab

    1979-01-01

    Electrostatic pickup station, with 4 electrodes, to measure beam position in the horizontal and vertical plane. This type is used in the transfer lines leaving the PS (TT2, TTL2, TT70). See also 8206063, where the electrode shapes are clearly visible.

  12. Point Lepreau generating station

    International Nuclear Information System (INIS)

    Ganong, G.H.D.; Strang, A.E.; Gunter, G.E.; Thompson, T.S.

    Point Lepreau-1 reactor is a 600 MWe generating station expected to be in service by October 1979. New Brunswick is suffering a 'catch up' phenomenon in load growth and needs to decrease dependence on foreign oil. The site is on salt water and extensive study has gone into corrosion control. Project management, financing and scheduling have unique aspects. (E.C.B.)

  13. Mojave Base Station Implementation

    Science.gov (United States)

    Koscielski, C. G.

    1984-01-01

    A 12.2 meter diameter X-Y mount antenna was reconditioned for use by the crustal dynamic project as a fixed base station. System capabilities and characteristics and key performance parameters for subsystems are presented. The implementation is completed.

  14. RELAÇÃO ENTRE IDADE E CAPACIDADE FUNCIONAL DE IDOSAS RESIDENTES EM INSTITUIÇÕES DE LONGA PERMANÊNCIA NA CIDADE DE FORTALEZA/CE

    Directory of Open Access Journals (Sweden)

    Darling Kescia Araújo Peixoto Braga

    2014-12-01

    Full Text Available Introdução: O envelhecimento gera desgastes fisiológicos próprios. O sistema de valores socioculturais ocidentais e a atual configuração dos arranjos familiares associados aumenta a institucionalização de idosos, que pela fragilidade podem ter déficits na execução das atividades básicas de vida diária (ABVD's e cognição. Objetivo: Avaliar o desempenho nas ABVD, considerando a faixa etária de mulheres idosas residentes em duas Instituições de Longa Permanência para Idosos (ILPI´s na cidade de Fortaleza/CE. Métodos: Estudo seccional, realizado no período de Outubro a Dezembro de 2013 através de um censo com 24 idosas residentes em duas ILPI's. A coleta de dados foi realizada em duas etapas: formulário com caracterização da amostra e o questionário de ABVD de Barthel. Resultados: A amostra possui idade média de 80,04 anos (± 7,91; mín, = 65,0 e máx. = 90,0, eram solteira (66,6%, com baixa escolaridade (33,3% analfabetas e 33,3% com primário completo, procedentes do interior do Estado (58,3% e residiam na instituição há menos de cinco anos (58,3%. O Índice de Barthel revelou que a maioria (75% eram independentes para a realização das ABVDs, sem influenciada da faixa etária. Conclusão: As idosas residentes nas ILPI apresentam independência funcional nas ABVD e sem influência da idade.

  15. Análise dos casos de sífilis gestacional e congênita nos anos de 2008 a 2010 em Fortaleza, Ceará, Brasil

    Directory of Open Access Journals (Sweden)

    Ana Rita Paulo Cardoso

    Full Text Available Resumo O presente estudo analisa os casos notificados de sífilis em gestantes e os possíveis desfechos para o feto e o recém-nascido em Fortaleza, Ceará. Estudo transversal que analisou 175 casos notificados de sífilis em gestantes, pareados com as correspondentes notificações de sífilis congênita durante os anos de 2008 a 2010. Utilizou-se estatística descritiva com frequências absolutas e relativas, medidas de tendência central e dispersão e qui-quadrado de Pearson para analisar a significância estatística, utilizando o valor de p < 0,05. Foram analisadas variáveis sociodemográficas das gestantes/puérperas, da assistência prestada aos recém-nascidos e o desfecho dos casos. Os resultados mostraram a ocorrência da sífilis em mulheres jovens com mais de 85,0% de tratamentos inadequados, 62,9% dos parceiros sexuais não tratados ou com informação ignorada e percentuais elevados da não realização dos exames preconizados para a investigação de sífilis congênita nas crianças. Dentre os conceptos, cinco foram natimortos, um aborto e três óbitos neonatais. A falta de tratamento adequado dos casos de sífilis em gestantes pode estar associada à morbimortalidade dos conceptos, mantendo essa infecção como um fardo no rol dos problemas de saúde pública.

  16. ASPECTOS ECOLÓGICOS DA COMUNIDADE DE PARASITOS EMDUAS ESPÉCIES DE LORICARIIDAE DA BACIA IGARAPÉ FORTALEZA, ESTADO DO AMAPÁ, BRASIL

    Directory of Open Access Journals (Sweden)

    Raissa Alves Gonçalves

    2014-04-01

    Full Text Available Os parasitos têm sido reconhecidos como importantes componentes dos ecossistemas. Esses usam o ambiente para a sua transmissão e podem infectar diversas espécies de peixe no ecossistema. O presente estudo investigou a ecologia parasitária em Squaliforma emarginata e Harttia duriventris da bacia Igarapé Fortaleza, região de Macapá, estado do Amapá, Norte do Brasil. Para ambos os peixes houve similar nível de infecção por Ichthyophthirius multifiliis (Ciliophora, parasito dominante e com dispersão agregada. Spironucleus sp. (Hexamitidae ocorreu somente nas brânquias de H. duriventris, enquanto Trinigyrus mourei (Monogenoidea e Procamallanus inopinatus (Camallanidae foram encontrados somente S. emarginata. O índice de Brillouin, riqueza de espécies de parasitos, uniformidade e dominância de Berger-Parker foram maiores em S. emarginata, mas paraambos os hospedeiros a comunidade parasitária foi caracterizada por baixa diversidade e baixa uniformidade. Em H. duriventris e S. emarginata, o baixo parasitismo não afetou o fator de condição relativo (Kn dos hospedeiros. Em S. emarginata houve correlação positiva da abundância de I. multifiliis com o comprimento, peso e Kn dos hospedeiros,enquanto que em H. druventris somente o peso e Kn mostram correlação com a abundância desse ciliado. Este foi o primeiro registro de I. multifiliis, Spironucleus sp. e P.inopinatus para H. duriventris e S. emarginata. Palavras-chave: Amazônia, Diversidade, Parasitos, Peixes de água doce, Metazoários. DOI: http://dx.doi.org/10.18561/2179-5746/biotaamazonia.v4n1p15-21

  17. La práctica de actividad física entre los adolescentes de las escuelas públicas del estado en Fortaleza (Brasil

    Directory of Open Access Journals (Sweden)

    Marta Maria Coelho Damasceno

    2009-06-01

    Full Text Available El objetivo del estudio fue el de conocer los hábitos cotidianos, relacionados a la práctica de actividad física, mostrados por adolescentes de escuelas públicas de Fortaleza – Brasil. Estudio transversal en el cual participaron 720 estudiantes pertenecientes a doce escuelas públicas estatales, cuya edad variaba entre 14 y 19 años y de ambos sexos. Los datos se recogieron durante los meses de febrero y marzo de 2006, a través de entrevista estructurada. Además, se verificó peso y altura y se midió la glucemia capilar. Los resultados mostraron que el 65,8% tenía entre 14 y 17 años; el 81,1% cursaba enseñanza secundaria; el 59,3% era del sexo femenino y el 75,3% adquirió hábitos sedentarios. De esos, el 10% estaba con sobrepeso; el 2,8% era obeso y el 8,5% tenía sus valores de glucemia capilar superior a lo normal. La práctica de actividad física estuvo relacionada al sexo (p = 0,000 y a la edad (p = 0,049. Se concluyó que hay un alto porcentaje de adolescentes sedentarios y que la educación para la salud es el camino indicado para combatir dicho sedentarismo y también ayuda a prevenir enfermedades cardiovasculares y diabetes mellitus tipo 2.

  18. Hydrogen Filling Station

    Energy Technology Data Exchange (ETDEWEB)

    Boehm, Robert F; Sabacky, Bruce; Anderson II, Everett B; Haberman, David; Al-Hassin, Mowafak; He, Xiaoming; Morriseau, Brian

    2010-02-24

    Hydrogen is an environmentally attractive transportation fuel that has the potential to displace fossil fuels. The Freedom CAR and Freedom FUEL initiatives emphasize the importance of hydrogen as a future transportation fuel. Presently, Las Vegas has one hydrogen fueling station powered by natural gas. However, the use of traditional sources of energy to produce hydrogen does not maximize the benefit. The hydrogen fueling station developed under this grant used electrolysis units and solar energy to produce hydrogen fuel. Water and electricity are furnished to the unit and the output is hydrogen and oxygen. Three vehicles were converted to utilize the hydrogen produced at the station. The vehicles were all equipped with different types of technologies. The vehicles were used in the day-to-day operation of the Las Vegas Valley Water District and monitoring was performed on efficiency, reliability and maintenance requirements. The research and demonstration utilized for the reconfiguration of these vehicles could lead to new technologies in vehicle development that could make hydrogen-fueled vehicles more cost effective, economical, efficient and more widely used. In order to advance the development of a hydrogen future in Southern Nevada, project partners recognized a need to bring various entities involved in hydrogen development and deployment together as a means of sharing knowledge and eliminating duplication of efforts. A road-mapping session was held in Las Vegas in June 2006. The Nevada State Energy Office, representatives from DOE, DOE contractors and LANL, NETL, NREL were present. Leadership from the National hydrogen Association Board of Directors also attended. As a result of this session, a roadmap for hydrogen development was created. This roadmap has the ability to become a tool for use by other road-mapping efforts in the hydrogen community. It could also become a standard template for other states or even countries to approach planning for a hydrogen

  19. Mobile environmental radiation monitoring station

    International Nuclear Information System (INIS)

    Assido, H.; Shemesh, Y.; Mazor, T.; Tal, N.; Barak, D.

    1997-01-01

    A mobile environmental radiation monitoring station has been developed and established for the Israeli Ministry of Environment. The radiation monitoring station is ready for immediate placing in any required location, or can be operated from a vehicle. The station collects data Tom the detector and transfers it via cellular communication network to a Computerized Control Center for data storage, processing, and display . The mobile station is fully controlled from the. Routinely, the mobile station responses to the data request accumulated since the last communication session. In case of fault or alarm condition in the mobile station, a local claim is activated and immediately initiates communication with the via cellular communication network. (authors)

  20. Surface temperature of the equatorial Pacific Ocean and the Indian rainfall

    Digital Repository Service at National Institute of Oceanography (India)

    Gopinathan, C.K.

    The time variation of the monthly mean surface temperature of the equatorial Pacific Ocean during 1982-1987 has been studied in relation to summer monsoon rainfall over India The ENSO events of 1982 and 1987 were related to a significant reduction...

  1. A study of Sq(H) variations over equatorial electrojet regions | Okeke ...

    African Journals Online (AJOL)

    The newly established geomagnetic field observations in Japan, have enabled us to analyse the 1998 data of Huancayo, Kiritimati (Christmas Island) and Pohnpei where the geomagnetic Sq(H) variations of equatorial electrojet have been studied. The diurnal variation of the monthly means of Sq(H) on the five international ...

  2. Equatorial Indian Ocean productivity during the last 33 kyr and possible linkage to Westerly Jet variability

    Digital Repository Service at National Institute of Oceanography (India)

    Punyu, V.R.; Banakar, V.K.; Garg, A.

    The top 1 m radiocarbon dated section of a 5.6 m long sediment core retrieved from the Equatorial Indian Ocean is studied for productivity changes in response to climate variability that have taken place during the last ~33 kyr. The robust...

  3. Interannual variability of the Equatorial Jets in the Indian Ocean from the merged altimetry data

    Digital Repository Service at National Institute of Oceanography (India)

    Somayajulu, Y.K.; Murty, V.S.N.; Neelima, C.; Jagadeesh, P.S.V.

    The merged ERS-1/2, TOPEX/Poseidon and Jason-1 altimeter weekly sea level anomalies (SLAs) for the period 1997- 2005 were analyzed to study the variability of sea level and computed geostrophic currents in relation to the equatorial jets...

  4. Seasonal Variation of Diurnal Cycle of Rainfall in the Eastern Equatorial Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    RameshKumar, M.R.; Pednekar, S.; Katsumata, M.; Antony, M.K.; Kuroda, Y.; Unnikrishnan, A.S.

    The diurnal cycle of rainfall over the eastern equatorial Indian Ocean is studied for the period 23rd October 2001 to 31st October 2003 using the hourly data from the Triton buoy positioned at 1.5°S and 90°E. An analysis of the active and weak...

  5. A study of evolution/suppression parameters of equatorial postsunset plasma instability

    Directory of Open Access Journals (Sweden)

    O. S. Oyekola

    2009-01-01

    Full Text Available Evening equatorial pre-reversal vertical ion E×B drift (VZP and the peak of the ionospheric F2 maximum altitude (hmF2P of the postsunset equatorial F-layer, which are the essential parameters requisite for the generation or inhibition of postsunset bottomside equatorial irregularities were deduced from ionosonde observations made in the Africa region (Ouagadougou: ~3° N dip latitude between January 1987 and December 1990 for solar activity minimum, medium, and maxima (F10.7=85, 141, 214, and 190, respectively for quiet geomagnetic conditions. We investigate variations of evening equatorial pre-reversal drift and the corresponding altitude at four levels of solar activity. Our observations show strong variations with solar variability. Correlation analysis between these parameters indicates that the correlation coefficient value between hmF2P versus VZP decreases considerably with increasing solar flux value. There seems to be no significant link between these parameters under high solar activity, especially for solar intensity F10.7>200 units. We conclude that meridional neutral wind in the F-region contributes substantially to the variations of the pre-reversal vertical plasma drifts enhancement and the peak hmF2, particularly the electrodynamics during twilight high solar flux conditions.

  6. The heat and moisture budgets of the atmosphere over central equatorial Indian Ocean during summer monsoon

    Digital Repository Service at National Institute of Oceanography (India)

    Sadhuram, Y.; Gopalakrishna, V.V.; RameshBabu, V.; Sastry, J.S.

    The heat and moisture budgets of the atmosphere (surface to 100 mb) over the central equatorial Indian Ocean (2 degrees N to 2 degrees S; 76 degrees E to 80 degrees E) have been investigated utilising the surface and upper air data collected...

  7. Nonlinear theory of the collisional Rayleigh-Taylor instability in equatorial spread F

    International Nuclear Information System (INIS)

    Chaturvedi, P.K.; Ossakow, S.L.

    1977-01-01

    The nonlinear behavior of the collisional Rayleigh-Taylor instability is studied in equatorial Spread F by including a dominant two-dimensional nonlinearity. It is found that on account of this nonlinearity the instability saturates by generating damped higher spatial harmonics. The saturated power spectrum for the density fluctuations is discussed. A comparison between experimental observations and theory is presented

  8. Targeting Aurora B to the equatorial cortex by MKlp2 is required for cytokinesis.

    Directory of Open Access Journals (Sweden)

    Mayumi Kitagawa

    Full Text Available Although Aurora B is important in cleavage furrow ingression and completion during cytokinesis, the mechanism by which kinase activity is targeted to the cleavage furrow and the molecule(s responsible for this process have remained elusive. Here, we demonstrate that an essential mitotic kinesin MKlp2 requires myosin-II for its localization to the equatorial cortex, and this event is required to recruit Aurora B to the equatorial cortex in mammalian cells. This recruitment event is also required to promote the highly focused accumulation of active RhoA at the equatorial cortex and stable ingression of the cleavage furrow in bipolar cytokinesis. Specifically, in drug-induced monopolar cytokinesis, targeting Aurora B to the cell cortex by MKlp2 is essential for cell polarization and furrow formation. Once the furrow has formed, MKlp2 further recruits Aurora B to the growing furrow. This process together with continuous Aurora B kinase activity at the growing furrow is essential for stable furrow propagation and completion. In contrast, a MKlp2 mutant defective in binding myosin-II does not recruit Aurora B to the cell cortex and does not promote furrow formation during monopolar cytokinesis. This mutant is also defective in maintaining the ingressing furrow during bipolar cytokinesis. Together, these findings reveal that targeting Aurora B to the cell cortex (or the equatorial cortex by MKlp2 is essential for the maintenance of the ingressing furrow for successful cytokinesis.

  9. Intensities and spatiotemporal variability of equatorial noise emissions observed by the Cluster spacecraft

    Czech Academy of Sciences Publication Activity Database

    Němec, F.; Santolík, Ondřej; Hrbáčková, Zuzana; Cornilleau-Wehrlin, N.

    2015-01-01

    Roč. 120, č. 3 (2015), s. 1620-1632 ISSN 2169-9380 R&D Projects: GA MŠk(CZ) LH11122 Institutional support: RVO:68378289 Keywords : equatorial noise * magnetosonic waves Subject RIV: BL - Plasma and Gas Discharge Physics Impact factor: 3.318, year: 2015 http://onlinelibrary.wiley.com/doi/10.1002/2014JA020814/full

  10. Estimation of eddy diffusivity coefficient of heat in the upper layers of equatorial Arabian Sea

    Digital Repository Service at National Institute of Oceanography (India)

    Zavialov, P.O.; Murty, V.S.N.

    in the Central Equatorial Arabian Sea (CEAS). A comparison of the model computed K sub(h) values with those estimated from the heat balance of the upper layer (50 m) of the sea shows good agreement in the region of weak winds (CEAS) or low turbulent mixing regime...

  11. Effective potential for equatorial motion in the Tomimatsu-Sato space-times

    Energy Technology Data Exchange (ETDEWEB)

    Calvani, M [Padua Univ. (Italy). Ist. di Astronomia

    1978-01-28

    We give general rules to draw the effective potential curves for equatorial motion in the T-S space-times either with am. Some general properties of the potentials are pointed out and few examples shown.

  12. An Enduring Rapidly Moving Storm as a Guide to Saturn's Equatorial Jet's Complex Structure

    Science.gov (United States)

    Sanchez-Lavega, A.; Garcia-Melendo, E.; Perez-Hoyos, S.; Hueso, R.; Wong, M. H.; Simon, A.; Sanz-Requena, J. F.; Antunano, A.; Barrado-Izagirre, N.; Garate-Lopez, I.; hide

    2016-01-01

    Saturn has an intense and broad eastward equatorial jet with a complex three-dimensional structure mixed with time variability. The equatorial region experiences strong seasonal insolation variations enhanced by ring shadowing, and three of the six known giant planetary-scale storms have developed in it. These factors make Saturn's equator a natural laboratory to test models of jets in giant planets. Here we report on a bright equatorial atmospheric feature imaged in 2015 that moved steadily at a high speed of 450/ms not measured since 1980-1981 with other equatorial clouds moving within an ample range of velocities. Radiative transfer models show that these motions occur at three altitude levels within the upper haze and clouds. We find that the peak of the jet (latitudes 10degN to 10degS) suffers intense vertical shears reaching + 2.5/ms/km, two orders of magnitude higher than meridional shears, and temporal variability above 1 bar altitude level.

  13. Effect of solar flare on the equatorial electrojet in eastern Brazil region

    Indian Academy of Sciences (India)

    The effect of solar flare, sudden commencement of magnetic storm and of the disturbances ring current on the equatorial electrojet in the Eastern Brazil region, where the ground magnetic declination is as large as 20∘W is studied based on geomagnetic data with one minute resolution from Bacabal during ...

  14. Características da clientela atendida por crise hipertensiva na emergência de um hospital municipal de Fortaleza, Estado do Ceará = Characteristics of the clientele assisted for hypertensive crisis in the emergency of a municipal hospital in Fortaleza, Ceará State

    Directory of Open Access Journals (Sweden)

    Ione Cavalcante Lacerda

    2010-01-01

    Full Text Available Objetivou-se descrever as características da clientela com crise hipertensiva. A pesquisa, quantitativa, descritiva e documental foi realizada em um hospital municipal de Fortaleza, Estado do Ceará em 2006. Na análise de 790 fichas de atendimento, observamos que 48,2% dos pacientes que apresentavam crise hipertensiva, encontravam-se na faixa etária de 40 a 59 anos e a maioria dos indivíduos era de casados (57,5%. Os principais sintomas encontrados foram cefaleia (35,7% e dor precordial (12.3% e, em 36,8% das fichas, não houve registro de sinais e sintomas. As medicações mais prescritas foram o captopril (90,6% e furosemida (53%. Conclui-se que a crise hipertensiva acomete muitos adultos, a maioria casados e que geralmente vão à emergência para fazer avaliação clínica de algum sinal/sintoma. Ressalta-se a necessidade de se alertar os profissionais de saúde quanto à importância do registro para conhecimento e compreensão das características dessa clientela para o controle e a prevenção da crise hipertensiva.The objective was to describe the characteristics of the clientele with hypertensive crisis. The research, which was quantitative, descriptive and documentary, was conducted at a municipal hospital in Fortaleza, Ceará Estate in 2006. In the analysis of 790 patient files, we found that 48.2% of patients presenting hypertensive crisis were in the age group between 40 and 59 years old. Most of the individuals were married (57.5%. The main symptoms were headache (35.7% and chest pain (12.3%, and in 36.8% of files there was no record of signs and symptoms. The most prescribed medications were captopril (90.6% and furosemide (53%. We conclude that hypertensive crisis affects many adults, most married and who usually go to the emergency room for clinical evaluation of a sign/symptom. We emphasize the need to alert health professionals about the importance of records for knowledge and understanding of the characteristics of that

  15. Frequency and enzymatic activity of Candida albicans isolated from the oral cavity of HIV-positive patients at Fortaleza, Ceará Freqüência e atividade enzimática de Candida albicans isolado da cavidade oral de pacientes HIV-positivos em Fortaleza, Ceará

    Directory of Open Access Journals (Sweden)

    Everardo Albuquerque Menezes

    2006-08-01

    Full Text Available Candida albicans and other species are usually involved in opportunistic infections in patients with acquired immunological deficiency syndrome (AIDS. The virulence mechanisms by which this yeast expresses its pathogenicity include adherence patterns, ability to form pseudomycelia and production of extracellular enzymes, among others. The objective of this research was to verify the frequency of Candida and the production of proteinase and phospholipase in 52 strains of Candida albicans from the oral cavity of patients infected by HIV treated at Hospital São José, AIDS reference and training center in Fortaleza, Ceará. Samples were collected of patients, with or without oral lesions characteristic of candidosis. From 100 patients, 80% presented positivity for Candida: 65% (52 were identified as C. albicans, 27.5% (22 as C. tropicalis, 2.5% (2 as C. glabrata, 2.5% (2 as C. krusei and 2.5% (2 as C. guilliermondii. Among the strains of C. albicans isolated from the oral cavity, proteinase and phospholipase were detected in 69.2% and 73%, respectively. The results suggested that C. albicans was the most frequent species observed, with intermediate expression of proteinase and phospholipase.Candida albicans e outras espécies são usualmente envolvidas em infecções de pacientes com a síndrome da imunodeficiência adquirida (AIDS. Os mecanismos de virulência pelos quais a levedura expressa sua patogenicidade incluem padrões de aderência, habilidade por formar pseudomicélio, produção de enzimas extracelulares e outros. O objetivo deste trabalho foi verificar a freqüência de Candida e a produção de proteinase e fosfolipase em 52 cepas de Candida albicans da cavidade oral de pacientes infectados pelo HIV atendidos no Hospital São José, hospital de referência e centro de treinamento em AIDS em Fortaleza, Ceará. Neste trabalho foram coletadas amostras de pacientes com ou sem lesões características de candidose. Dos cem pacientes 80

  16. Ações de prevenção dos acidentes e violências em crianças e adolescentes, desenvolvidas pelo setor público de saúde de Fortaleza, Ceará, Brasil

    Directory of Open Access Journals (Sweden)

    Pordeus Augediva Maria Jucá

    2003-01-01

    Full Text Available Este artigo trata das ações de prevenção de acidentes e violências, desenvolvidas pelo setor público de saúde de Fortaleza, Estado do Ceará, Brasil. Originou-se da necessidade sentida pelas autoras diante das estatísticas de mortalidade por estas causas na infância e adolescência, que parecia não haver por parte do setor público de saúde ações de prevenção. Realizamos um levantamento junto aos gerentes das Coordenadorias de Saúde das seis Secretarias Executivas Regionais (SER, setores geográficos onde está organizada a rede de saúde de Fortaleza, por meio da aplicação de questionário. O levantamento mostrou que as ações desenvolvidas são pontuais, não existindo como política de saúde, visto que ocorrem na forma de campanhas, têm como foco principal a educação em saúde voltada para a prevenção do uso de álcool e outras drogas ilícitas, violência e acidentes domésticos e delinqüência juvenil. Apenas na SER-I existia parceria com outros setores nas atividades desenvolvidas. Concluímos que o setor público de saúde de Fortaleza, necessita incorporar em sua agenda a prevenção de acidentes e violências na infância e adolescência, utilizando a intersetorialidade e somando esforços para que o conhecimento até agora adquirido sobre a prevenção destes agravos se transforme em realidade.

  17. Battery charging stations

    Energy Technology Data Exchange (ETDEWEB)

    Bergey, M.

    1997-12-01

    This paper discusses the concept of battery charging stations (BCSs), designed to service rural owners of battery power sources. Many such power sources now are transported to urban areas for recharging. A BCS provides the opportunity to locate these facilities closer to the user, is often powered by renewable sources, or hybrid systems, takes advantage of economies of scale, and has the potential to provide lower cost of service, better service, and better cost recovery than other rural electrification programs. Typical systems discussed can service 200 to 1200 people, and consist of stations powered by photovoltaics, wind/PV, wind/diesel, or diesel only. Examples of installed systems are presented, followed by cost figures, economic analysis, and typical system design and performance numbers.

  18. The nuclear power station

    International Nuclear Information System (INIS)

    Plettner, B.

    1987-04-01

    The processes taking place in a nuclear power plant and the dangers arising from a nuclear power station are described. The means and methods of controlling, monitoring, and protecting the plant and things that can go wrong are presented. There is also a short discourse on the research carried out in the USA and Germany, aimed at assessing the risks of utilising nuclear energy by means of the incident tree analysis and probability calculations. (DG) [de

  19. International Space Station exhibit

    Science.gov (United States)

    2000-01-01

    The International Space Station (ISS) exhibit in StenniSphere at John C. Stennis Space Center in Hancock County, Miss., gives visitors an up-close look at the largest international peacetime project in history. Step inside a module of the ISS and glimpse how astronauts will live and work in space. Currently, 16 countries contribute resources and hardware to the ISS. When complete, the orbiting research facility will be larger than a football field.

  20. Shippingport station communications program

    International Nuclear Information System (INIS)

    Stote, J.J.

    1988-01-01

    The author discusses how the communications program for the Shippingport Atomic Power Station has a long history. It can be traced as far back as 1953, when the U.S. Atomic Energy Commission (AEC) awarded a contract to Westinghouse Electric to design the nuclear portion of a power plant for electric utility use. During May of the next year, President Eisenhower initiated groundbreaking ceremonies for the construction of the commercial atomic power plant at Shippingport, Pennsylvania

  1. Disruption of Saturn's quasi-periodic equatorial oscillation by the great northern storm

    Science.gov (United States)

    Fletcher, Leigh N.; Guerlet, Sandrine; Orton, Glenn S.; Cosentino, Richard G.; Fouchet, Thierry; Irwin, Patrick G. J.; Li, Liming; Flasar, F. Michael; Gorius, Nicolas; Morales-Juberías, Raúl

    2017-11-01

    The equatorial middle atmospheres of the Earth1, Jupiter2 and Saturn3,4 all exhibit a remarkably similar phenomenon—a vertical, cyclic pattern of alternating temperatures and zonal (east-west) wind regimes that propagate slowly downwards with a well-defined multi-year period. Earth's quasi-biennial oscillation (QBO) (observed in the lower stratospheric winds with an average period of 28 months) is one of the most regular, repeatable cycles exhibited by our climate system1,5,6, and yet recent work has shown that this regularity can be disrupted by events occurring far away from the equatorial region, an example of a phenomenon known as atmospheric teleconnection7,8. Here, we reveal that Saturn's equatorial quasi-periodic oscillation (QPO) (with an 15-year period3,9) can also be dramatically perturbed. An intense springtime storm erupted at Saturn's northern mid-latitudes in December 201010-12, spawning a gigantic hot vortex in the stratosphere at 40° N that persisted for three years13. Far from the storm, the Cassini temperature measurements showed a dramatic 10 K cooling in the 0.5-5 mbar range across the entire equatorial region, disrupting the regular QPO pattern and significantly altering the middle-atmospheric wind structure, suggesting an injection of westward momentum into the equatorial wind system from waves generated by the northern storm. Hence, as on Earth, meteorological activity at mid-latitudes can have a profound effect on the regular atmospheric cycles in Saturn's tropics, demonstrating that waves can provide horizontal teleconnections between the phenomena shaping the middle atmospheres of giant planets.

  2. Emergency Medical Service (EMS) Stations

    Data.gov (United States)

    Kansas Data Access and Support Center — EMS Locations in Kansas The EMS stations dataset consists of any location where emergency medical services (EMS) personnel are stationed or based out of, or where...

  3. Weigh-in-Motion Stations

    Data.gov (United States)

    Department of Homeland Security — The data included in the GIS Traffic Stations Version database have been assimilated from station description files provided by FHWA for Weigh-in-Motion (WIM), and...

  4. Automatic Traffic Recorder (ATR) Stations

    Data.gov (United States)

    Department of Homeland Security — The data included in the GIS Traffic Stations Version database have been assimilated from station description files provided by FHWA for Weigh-in-Motion (WIM), and...

  5. Space Station fluid management logistics

    Science.gov (United States)

    Dominick, Sam M.

    1990-01-01

    Viewgraphs and discussion on space station fluid management logistics are presented. Topics covered include: fluid management logistics - issues for Space Station Freedom evolution; current fluid logistics approach; evolution of Space Station Freedom fluid resupply; launch vehicle evolution; ELV logistics system approach; logistics carrier configuration; expendable fluid/propellant carrier description; fluid carrier design concept; logistics carrier orbital operations; carrier operations at space station; summary/status of orbital fluid transfer techniques; Soviet progress tanker system; and Soviet propellant resupply system observations.

  6. Thermal management of space stations

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Thermal management aims at making full use of energy resources available in the space station to reduce energy consumption, waste heat rejection and the weight of the station. It is an extension of the thermal control. This discussion introduces the concept and development of thermal management, presents the aspects of thermal management and further extends its application to subsystems of the space station.

  7. Air and radiation monitoring stations

    CERN Multimedia

    AUTHOR|(SzGeCERN)582709

    2015-01-01

    CERN has around 100 monitoring stations on and around its sites. New radiation measuring stations, capable of detecting even lower levels of radiation, were installed in 2014. Two members of HE-SEE group (Safety Engineering and Environment group) in front of one of the new monitoring stations.

  8. Numerical simulation of the performance and economical study of three cookers: solar, hybrid (solar and natural gas) and a LPG (Liquefied Petroleum Gases) cooker for one typical year in Fortaleza-Brazil; Simulacao numerica da performance e estudo da viabilidade economica de tres tipos de fogoes: solar, hibrido (solar e gas natural) e a GLP (Gas Liquefeito do Petroleo) para um ano em Fortaleza

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Maria Eugenia Vieira da; Santana, Lana Ludmila Pinheiro [Universidade Federal do Ceara (UFC), Fortaleza, CE (Brazil). Lab. de Energia Solar e Gas Natural (LESGN); Schwarzer, Klemens [Universidade de Ciencias Aplicadas de Aachen (Germany). Solar Institute Juelich; Miller, Francisco Mateus [PETROBRAS, Rio de Janeiro, RJ (Brazil); Baratelli Junior, Fernando [PETROBRAS, Rio de Janeiro, RJ (Brazil). Gerencia de Gas e Energia

    2004-07-01

    Alternative energy sources can represent viable economical solutions for the energy supply problems and also minimize damages to the environment. This research paper presents an economical and technical study of three different types of cookers: a solar cooker, a hybrid cooker and a conventional LPG cooker, through simulation for one typical year in Fortaleza. The solar cooker used in the experiments is composed of two pots, an oven, a tank of storage and 2m{sup 2} of solar collector area. The hybrid cooker has the same structure of the solar one with an additional natural gas burner, and the LPG stove can be easily found in the market. To find the value of the necessary energy to make food in a solar cooker, the amount of solar radiation was measured, as well as the sensible and latent efficiencies of the used stove. In the hybrid, it was considered that the natural gas is used only in the periods of the day when the amount of solar energy is not enough to heat the system up to the desired temperature. The results show an economical and technical comparison of the three different types of cookers. (author)

  9. LIDERANÇA, ESTILOS PESSOAIS, ESTRATÉGIAS E DESEMPENHO DE MICRO E PEQUENOS EMPRESÁRIOS DO SETOR INDUSTRIAL DE FORTALEZA

    Directory of Open Access Journals (Sweden)

    Francisco Rogério de Morais Silva

    2011-07-01

    Full Text Available Este estudo investigou as relações entre características pessoais, tendências de caráter e estratégias adotadas por empresários e sua relação com o sucesso de pequenas empresas do setor industrial de Fortaleza. As análises dos dados coletados mostraram que, a exemplo do que foi comprovado em estudos anteriores, determinadas características pessoais são mais associadas ao bom desempenho empresarial e tal associação é reforçada por estratégias relevantes para esse tipo de empresário. Além de comprovar achados de estudos anteriores sobre essas relações, o estudo atual revelou que é possível identificar traços de caráter que, somados ou identificados com características pessoais e estratégias psicológicas ou empresariais, melhoram o desempenho empresarial. Identificou-se uma tendência predominante dos seguintes estilos de caráter no grupo pesquisado: individualista cívico e coletivista seguidos do individualista heróico, narcisista e obsessivo. A consciência de sua competência, assumir o trabalho como valor supremo, compartilhar suas decisões e ter a capacidade de reavaliação a partir dos próprios erros foram algumas características relacionadas aos estilos: individualista cívico e coletivista. O estudo evidenciou que empresários com bons índices de desempenho são também os mais satisfeitos e realizados a nível pessoal e profissional, reforçando a relação entre sucesso objetivo e subjetivo. Entre as estratégias mais utilizadas, “orientação empresarial para o desempenho da empresa e dos empregados”, “prática da inovação e do uso da criatividade” e “profissionalismo” estão entre as mais efetivas para o alcance do sucesso empresarial.

  10. La formación actual del médico: fortalezas y debilidades The current training of doctors: strengths and weaknesses

    Directory of Open Access Journals (Sweden)

    X. Clèries

    2009-03-01

    Full Text Available Las “Jornadas estatales de estudio y debate sobre el futuro de la formación integral del médico ¿bioingeniería o medicina?” que se realizaron en Barcelona el 8 y 9 de febrero de 2008 fueron el marco para que un grupo de trabajo abordara el tema de las fortalezas y debilidades de la formación actual del médico. Las principales aportaciones se estructuraron en los tres niveles educativos siguientes: pregrado, posgrado y formación continuada. Se destacó la necesidad de una formación integral y psicosocial en la enseñanza de pregrado, la conveniencia de una estructuración troncal de la formación de posgrado para conseguir una mayor transversalidad de la competencia del médico y la contextualización de la formación continuada en el desarrollo profesional de cada médico. El predominio de los conocimientos biomédicos y tecnológicos en la formación actual del médico contrastan con las demandas de carácter psicosocial de una gran parte de la población en el sistema sanitario.The “National Conference for study and debate on the future of the integral training of doctors: bioengineering or medicine?” that were realized in Barcelona on February 8-9th, 2008 it was the context so that a work group was carried out on the topic about strengths and weaknesses of the current training of physicians. The main contributions were structured around three educational levels: undergraduate, postgraduate and continuing education. In the undergraduate level was emphasized the need to achieve an integral and psychosocial education. The postgraduate education should have a core subject in order to acquire a better global understanding of doctors' competences. Continuing medical education in the context of professional development of every physician. The predominance of the biomedical and technological knowledge in the current training of doctors contrasts with psychosocial demands of the population of healthcare system.

  11. The intraplate Maranhão earthquake of 2017 January 3, northern Brazil: evidence for uniform regional stresses along the Brazilian equatorial margin

    Science.gov (United States)

    Dias, Fábio L.; Assumpção, M.; Bianchi, Marcelo B.; Barros, Lucas V.; Carvalho, Juraci M.

    2018-04-01

    Lithospheric stresses in intraplate regions can be characterized by many different wavelengths. In some areas, stresses vary over short distances of less than ˜100 km, but in other regions uniform stresses can be recognized for more than ˜1000 km or so. However, not all intraplate regions are well sampled with stress measurements to allow a good characterization of the lithospheric stresses. On 2017 January 3, a magnitude mb 4 earthquake occurred near the equatorial coast of the Maranhão State, an aseismic area of northern Brazil. Despite the few permanent stations in northern Brazil, a well-constrained strike-slip mechanism was obtained from regional moment-tensor inversion. A detailed analysis of the backazimuths of aftershocks recorded by the closest station (˜40 km away) allowed the identification of the fault plane to be the NNW-SSE trending nodal plane. An estimate of the rupture length, about 2 km, was also possible. The strike-slip mechanism has coast-parallel P axis and coast-perpendicular T axis, in agreement with most of the focal mechanisms found further to the east. The coast parallel P axis is also similar to the SHmax orientations from breakouts measurements further along the coast. The Maranhão earthquake fills an important gap of stress indicators in northern Brazil and suggests that the intraplate stress field is uniform along the 2000 km long northern coast.

  12. Seasonal variation of equatorial wave momentum fluxes at Gadanki (13.5° N, 79.2° E

    Directory of Open Access Journals (Sweden)

    M. N. Sasi

    2001-08-01

    Full Text Available The vertical flux of the horizontal momentum associated with the equatorial Kelvin and Rossby-gravity waves are estimated from the winds measured by the Indian MST radar located at Gadanki (13.5° N, 79.2° E during September 1995 to August 1996 in the tropospheric and lower stratospheric regions for all four seasons. The present study shows that momentum flux values are greater during equinox seasons than solstices, with values near the tropopause level being  16 × 10-3, 7.4 × 10-3, 27 × 10-3 and 5.5 × 10-3 m2 s-2 for Kelvin waves and 5.5 × 10-3, 3.5 × 10-3, 6.7 × 10-3 and 2.1 × 10-3 m2 s-2 for RG waves during autumnal equinox, winter, vernal equinox and summer seasons, respectively. Using these momentum flux values near the tropopause level, acceleration of the mean flow in the stratosphere up to a 29 km height were computed following Plumb (1984, by considering the wave-meanflow interaction and the deposition of the momentum through the radiative dissipation of the waves. A comparison of the estimated mean-flow acceleration in the stratosphere compares well, except at a few height levels, with the observed mean-flow accelerations in the stratosphere derived from the radiosonde data from a nearby station.Key words. Meteorology and atmosphenic dynamics (tropical meteorology; waves and tides

  13. Seasonal variation of equatorial wave momentum fluxes at Gadanki (13.5° N, 79.2° E

    Directory of Open Access Journals (Sweden)

    M. N. Sasi

    Full Text Available The vertical flux of the horizontal momentum associated with the equatorial Kelvin and Rossby-gravity waves are estimated from the winds measured by the Indian MST radar located at Gadanki (13.5° N, 79.2° E during September 1995 to August 1996 in the tropospheric and lower stratospheric regions for all four seasons. The present study shows that momentum flux values are greater during equinox seasons than solstices, with values near the tropopause level being 
    16 × 10-3, 7.4 × 10-3, 27 × 10-3 and 5.5 × 10-3 m2 s-2 for Kelvin waves and 5.5 × 10-3, 3.5 × 10-3, 6.7 × 10-3 and 2.1 × 10-3 m2 s-2 for RG waves during autumnal equinox, winter, vernal equinox and summer seasons, respectively. Using these momentum flux values near the tropopause level, acceleration of the mean flow in the stratosphere up to a 29 km height were computed following Plumb (1984, by considering the wave-meanflow interaction and the deposition of the momentum through the radiative dissipation of the waves. A comparison of the estimated mean-flow acceleration in the stratosphere compares well, except at a few height levels, with the observed mean-flow accelerations in the stratosphere derived from the radiosonde data from a nearby station.

    Key words. Meteorology and atmosphenic dynamics (tropical meteorology; waves and tides

  14. Sympatric occurrence and population dynamics of Scylla spp. in equatorial climate: Effects of rainfall, temperature and lunar phase

    Science.gov (United States)

    Fazhan, Hanafiah; Waiho, Khor; Darin Azri, Mohammad Farhan; Al-Hafiz, Ismail; Norfaizza, Wan Ibrahim Wan; Megat, Fadhlul Hazmi; Jasmani, Safiah; Ma, Hongyu; Ikhwanuddin, Mhd

    2017-11-01

    Mud crabs (Scylla spp.) are known to exist sympatrically in the wild. However, information on their population dynamics and the influence of climate parameters and lunar phase, especially along the equatorial region, are limited. Four sampling stations representing three seas (the Strait of Malacca, South China Sea and Sulu Sea) along the equator were selected. Mud crabs were collected using baited traps during spring tides from April 2012 to July 2013. All three Scylla species, S. olivacea, S. tranquebarica and S. paramamosain live in sympatry in the three seas. Scylla olivacea is the most prevalent species in the Strait of Malacca and South China Sea, whereas S. paramamosain dominates the Sulu Sea. The total crab abundance was not affected by rainfall or temperature. The abundance of S. tranquebarica in Strait of Malacca was negatively correlated with temperature and positively correlated with rainfall whereas the abundance of S. paramamosain positively correlated with temperature only at South China Sea. Scylla tranquebarica was the largest in terms of body size and it showed interchanging abundance trends with S. paramamosain. The average body size of S. paramamosain did not differ significantly with that of S. tranquebarica and S. olivacea. This decrease is most likely attributed to overfishing. Significant seasonal fluctuations in mean carapace width were detected in S. tranquebarica and S. paramamosain, but not in S. olivacea. The monthly sex ratio of all three species occasionally fluctuates above the equal sex ratio value. Lunar phase did not affect species abundance, but males and females were significantly heavier during full moon. These findings serve as a baseline of seasonal variation in crab population dynamics that are useful in mud crab fisheries and resource management.

  15. Geomagnetic storm effects on the occurrences of ionospheric irregularities over the African equatorial/low-latitude region

    Science.gov (United States)

    Amaechi, P. O.; Oyeyemi, E. O.; Akala, A. O.

    2018-04-01

    The study investigated the effects of intense geomagnetic storms of 2015 on the occurrences of large scale ionospheric irregularities over the African equatorial/low-latitude region. Four major/intense geomagnetic storms of 2015 were analyzed for this study. These storms occurred on 17th March 2015 (-229 nT), 22nd June 2015 (-204 nT), 7th October 2015 (-124 nT), and 20th December 2015 (-170 nT). Total Electron Content (TEC) data obtained from five African Global Navigation Satellite Systems (GNSS) stations, grouped into eastern and western sectors were used to derive the ionospheric irregularities proxy indices, e.g., rate of change of TEC (ROT), ROT index (ROTI) and ROTI daily average (ROTIAVE). These indices were characterized alongside with the disturbance storm time (Dst), the Y component of the Interplanetary Electric Field (IEFy), polar cap (PC) index and the H component of the Earth's magnetic field from ground-based magnetometers. Irregularities manifested in the form of fluctuations in TEC. Prompt penetration of electric field (PPEF) and disturbance dynamo electric field (DDEF) modulated the behaviour of irregularities during the main and recovery phases of the geomagnetic storms. The effect of electric field over both sectors depends on the local time of southward turning of IMF Bz. Consequently, westward electric field inhibited irregularities during the main phase of March and October 2015 geomagnetic storms, while for the June 2015 storm, eastward electric field triggered weak irregularities over the eastern sector. The effect of electric field on irregularities during December 2015 storm was insignificant. During the recovery phase of the storms, westward DDEF suppressed irregularities.

  16. Multifractal analysis of vertical total electron content (VTEC at equatorial region and low latitude, during low solar activity

    Directory of Open Access Journals (Sweden)

    M. J. A. Bolzan

    2013-01-01

    Full Text Available This paper analyses the multifractal aspects of the GPS data (measured during a period of low solar activity obtained from two Brazilian stations: Belém (01.3° S, 48.3° W and São José dos Campos (SJC (23.2° S, 45.9° W. The results show that the respective geographic sites show important scaling differences as well as similarities when their multifractal signatures for vertical total electron content (VTEC are compared. The f(α spectra have a narrow shape for great scales, which indicates the predominance of deterministic phenomena, such as solar rotation (27 days over intermittent phenomena. Furthermore, the f(α spectra for both sites have a strong multifractality degree at small scales. This strong multifractality degree observed at small scales (1 to 12 h at both sites is because the ionosphere over Brazil is a non-equilibrium system. The differences found were that Belém presented a stronger multifractality at small scales (1 h to 12 h compared with SJC, particularly in 2006. The reason for this behaviour may be associated with the location of Belém, near the geomagnetic equator, where at this location the actions of X-rays, ultraviolet, and another wavelength from the Sun are more direct, strong, and constant throughout the whole year. Although the SJC site is near ionospheric equatorial anomaly (IEA peaks, this interpretation could explain the higher values found for the intermittent parameter μ for Belém compared with SJC. Belém also showed the presence of one or two flattening regions for f(α spectra at the same scales mentioned before. These differences and similarities also were interpreted in terms of the IEA content, where this phenomenon is an important source of intermittence due the presence of the VTEC peaks at ±20° geomagnetic latitudes.

  17. Space station orbit maintenance

    Science.gov (United States)

    Kaplan, D. I.; Jones, R. M.

    1983-01-01

    The orbit maintenance problem is examined for two low-earth-orbiting space station concepts - the large, manned Space Operations Center (SOC) and the smaller, unmanned Science and Applications Space Platform (SASP). Atmospheric drag forces are calculated, and circular orbit altitudes are selected to assure a 90 day decay period in the event of catastrophic propulsion system failure. Several thrusting strategies for orbit maintenance are discussed. Various chemical and electric propulsion systems for orbit maintenance are compared on the basis of propellant resupply requirements, power requirements, Shuttle launch costs, and technology readiness.

  18. Capacity at Railway Stations

    DEFF Research Database (Denmark)

    Landex, Alex

    2011-01-01

    zone(s) the possible conflicts with other trains (also in the opposite direction) are taken into account leading to more trustworthy results. Although the UIC 406 methodology proposes that the railway network should be divided into line sections when trains turn around and when the train order...... is changed, this paper recommends that the railway lines are not always be divided. In case trains turn around on open (single track) line, the capacity consumption may be too low if a railway line is divided. The same can be the case if only few trains are overtaken at an overtaking station. For dead end...

  19. Submerged AUV Charging Station

    Science.gov (United States)

    Jones, Jack A.; Chao, Yi; Curtin, Thomas

    2014-01-01

    Autonomous Underwater Vehicles (AUVs) are becoming increasingly important for military surveillance and mine detection. Most AUVs are battery powered and have limited lifetimes of a few days to a few weeks. This greatly limits the distance that AUVs can travel underwater. Using a series of submerged AUV charging stations, AUVs could travel a limited distance to the next charging station, recharge its batteries, and continue to the next charging station, thus traveling great distances in a relatively short time, similar to the Old West “Pony Express.” One solution is to use temperature differences at various depths in the ocean to produce electricity, which is then stored in a submerged battery. It is preferred to have the upper buoy submerged a reasonable distance below the surface, so as not to be seen from above and not to be inadvertently destroyed by storms or ocean going vessels. In a previous invention, a phase change material (PCM) is melted (expanded) at warm temperatures, for example, 15 °C, and frozen (contracted) at cooler temperatures, for example, 8 °C. Tubes containing the PCM, which could be paraffin such as pentadecane, would be inserted into a container filled with hydraulic oil. When the PCM is melted (expanded), it pushes the oil out into a container that is pressurized to about 3,000 psi (approx equals 20.7 MPa). When a valve is opened, the high-pressure oil passes through a hydraulic motor, which turns a generator and charges a battery. The low-pressure oil is finally reabsorbed into the PCM canister when the PCM tubes are frozen (contracted). Some of the electricity produced could be used to control an external bladder or a motor to the tether line, such that depth cycling is continued for a very long period of time. Alternatively, after the electricity is generated by the hydraulic motor, the exiting low-pressure oil from the hydraulic motor could be vented directly to an external bladder on the AUV, such that filling of the bladder

  20. PlayStation purpura.

    Science.gov (United States)

    Robertson, Susan J; Leonard, Jane; Chamberlain, Alex J

    2010-08-01

    A 16-year-old boy presented with a number of asymptomatic pigmented macules on the volar aspect of his index fingers. Dermoscopy of each macule revealed a parallel ridge pattern of homogenous reddish-brown pigment. We propose that these lesions were induced by repetitive trauma from a Sony PlayStation 3 (Sony Corporation, Tokyo, Japan) vibration feedback controller. The lesions completely resolved following abstinence from gaming over a number of weeks. Although the parallel ridge pattern is typically the hallmark for early acral lentiginous melanoma, it may be observed in a limited number of benign entities, including subcorneal haematoma.