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Sample records for ernesto gutirrez jenny

  1. Ernesto Approaching Belize

    NASA Video Gallery

    An animation of satellite observations shows the progression of Tropical Storm Ernesto from August 5-7, 2012. The animation shows Ernesto's progression through the Caribbean Sea and ends as it near...

  2. Ernesto Moving Through Caribbean

    NASA Video Gallery

    An animation of satellite observations shows the progression of Tropical Storm Ernesto from August 4-6, 2012. The animation begins when Ernesto was south of Jamaica and ends when the storm is south...

  3. The Pedagogy of Ernesto Che Guevara

    ERIC Educational Resources Information Center

    Holst, John D.

    2009-01-01

    This article identifies and describes the major principles and themes that emerge from an analysis of the revolutionary pedagogical practice and ideas of Ernesto Che Guevara. The principles and themes outlined in this article are based on a thematic investigation of the approximately 2000 pages of Guevara's writings, speeches and interviews…

  4. Ecofutures in Africa: Jenny Robson's "Savannah 2116 AD"

    ERIC Educational Resources Information Center

    Cloete, Elsie

    2009-01-01

    Jenny Robson's "Savannah 2216 AD", a dark, futuristic novel for young adults, provides a strong critique on much of the world's predilection for saving Africa's animals at the expense of those human communities who are perceived to be in the way of the preservation of the continent's remaining wild spaces. Using Robson's novel as…

  5. Debris Avalanche Formation at Kick'em Jenny Submarine Volcano

    NASA Astrophysics Data System (ADS)

    Sigurdsson, H.; Carey, S. N.; Wilson, D.

    2005-12-01

    Kick'em Jenny submarine volcano near Grenada is the most active volcanic center in the Lesser Antilles arc. Multibeam surveys of the volcano by NOAA in 2002 revealed an arcuate fault scarp east of the active cone, suggesting flank collapse. More extensive NOAA surveys in 2003 demonstrated the presence of an associated debris avalanche deposit, judging from their surface morphologic expression on the sea floor, extending at least 15 km and possibly as much as 30 km from the volcano, into the Grenada Basin to the west. Seismic air-gun profiles of the region show that these are lobate deposits, that range in thickness from tens to hundreds of meters. The debris avalanche deposit is contained within two marginal levees, that extend symmetrically from the volcano to the west. A conservative estimate of the volume of the smaller debris avalanche deposit is about 10 km3. Age dating of the deposits and the flank failure events is in progress, by analysis of gravity cores collected during the 2003 survey. Reconstruction of the pre-collapse volcanic edifice suggests that the ancestral Kick'em Jenny volcano might have been at or above sea level. Kick'em Jenny is dominantly supplied by basalt to basaltic andesite magmas, that are extruded now as submarine pillow lavas and domes or ejected as tephra in relatively minor phreatomagmatic explosions. Geochemical evolution of this volcano has not, however, reached the stage of generation of volatile-rich silicic magmas that might form highly explosive eruptions.

  6. Updated bathymetric survey of Kick-'em-Jenny submarine volcano

    NASA Astrophysics Data System (ADS)

    Watlington, R. A.; Wilson, W. D.; Johns, W. E.; Nelson, C.

    High-resolution bathymetric data obtained in July 1996 during a survey of the Kick-'em-Jenny submarine volcano north of Grenada in the Lesser Antilles revealed changes in the structure of the volcanic edifice compared to previously available surveys. The volcano's summit, at 178 m below sea level, was found to be approximately 18 m farther from the surface than was reported by Bouysse et al. (1988) and others. No dome was observed. Instead, an open crater, surrounded by walls that dropped significantly in elevation from one side to the opposite, suggest that eruptions, earthquakes, rockfalls or explosions may have altered the structure since the last detailed survey. The deepest contour of the volcano's crater was found 106 m below the summit.

  7. Hematological and biochemical findings in pregnant, postfoaling, and lactating jennies.

    PubMed

    Bonelli, F; Rota, A; Corazza, M; Serio, D; Sgorbini, M

    2016-04-15

    The aims of this study were to (1) verify if significant changes occur in hematological and biochemical parameters in jennies during the last 2 months of pregnancy and the first 2 months of lactation, and (2) determine any differences with mares. Hematological and biochemical parameters were evaluated in jennies every 15 days during late pregnancy, parturition, and early lactation. The Kolmogorov-Smirnov test, analysis of variance for repeated measurements and Tukey's multiple comparison test as post hoc were applied. The significance level was set at P < 0.05. Statistical analysis showed differences related to time for Red Blood Cells (RBC) count and Hematocrit (HCT), White Blood Cells (WBC) count, platelet count (PLT), total proteins, blood urea, triglycerides and total cholesterol concentrations, aspartate aminotransferase, gamma-glutamyltransferase, creatine-phosphokinase activities, sodium (Na) and potassium (K). RBC and HCT were higher in late pregnancy than at foaling and during lactation. The relative anemia might be due to increased water ingestion because of fluid losses. The WBC count was higher at foaling than during late pregnancy and lactation. This could be related to the release of cortisol and catecholamine during delivery. The PLT trend showed lower values from delivery to the first 2 months of lactation compared to late gestation. Blood urea increased near parturition, and then remained constant during delivery and lactation, which might be due to the high energy demand at the beginning of lactation. Triglycerides and total cholesterol showed a decrease from delivery through the lactation period. Thus, jennies seem to have a similar metabolism of fats to ponies and draft horse mares, characterized by a greater fat content and mobilization than light breed horses. Aspartate aminotransferase activity decreased at parturition and early lactation, probably because of a predominance of anabolic over catabolic processes during pregnancy. Gamma

  8. Jenny Harris: 'we have been guilty of neglecting dental neglect', an interview by Ruth Doherty.

    PubMed

    Harris, Jenny

    2012-08-01

    Whilst at this year's British Dental Conference and Exhibition in Manchester, paediatric dentistry consultant, Jenny Harris spoke to the BDJ about neglecting dental neglect, managing paediatric patients and the GDP's role in child protection.

  9. Effect of jenny milk addition on the inhibition of late blowing in semihard cheese.

    PubMed

    Cosentino, C; Paolino, R; Valentini, V; Musto, M; Ricciardi, A; Adduci, F; D'Adamo, C; Pecora, G; Freschi, P

    2015-08-01

    The occurrence of late blowing defects in cheese produces negative effects on the quality and commercial value of the product. In this work, we verified whether the addition of raw jenny milk to bulk cow milk reduced the late blowing defects in semihard cheeses. During cheesemaking, different aliquots of jenny milk were poured into 2 groups of 4 vats, each containing a fixed amount of cow milk. A group of cheeses was created by deliberately contaminating the 4 vats with approximately 3 log10 cfu/mL milk of Clostridium tyrobutyricum CLST01. The other 4 vats, which were not contaminated, were used for a second group of cheeses. After 120 d of ripening, some physical, chemical, and microbiological parameters were evaluated on the obtained semihard cheeses. Differences in sensory properties among cheeses belonging to the uncontaminated group were evaluated by 80 regular consumers of cheese. Our results showed that the increasing addition of jenny milk to cow milk led to a reduction of pH and total bacterial count in both cheese groups, as well as C. tyrobutyricum spores that either grew naturally or artificially inoculated. We observed a progressive reduction of the occurrence of late blowing defects in cheese as consequence of the increasing addition of jenny milk during cheese making. Moreover, the addition of jenny milk did not affect the acceptability of the product, as consumers found no difference among cheeses concerning sensorial aspects. In conclusion, the important antimicrobial activity of lysozyme contained in jenny milk has been confirmed in the current research. It is recommend for use as a possible and viable alternative to egg lysozyme for controlling late blowing defects in cheese.

  10. Microbial Activity In The Peerless Jenny King Sulfate Reducing Bioreactor System (Presentation)

    EPA Science Inventory

    The Peerless Jenny King treatment system is a series of four sulfate reducing bioreactor cells installed to treat acid mine drainage in the Upper Tenmile Creek Superfund Site located in the Rimini Mining District, near Helena MT. The system consists of a wetland pretreatment fol...

  11. Microbial Activity In The Peerless Jenny King Sulfate Reducing Bioreactors System

    EPA Science Inventory

    The Peerless Jenny King treatment system is a series of four sulfate reducing bioreactor cells installed to treat acid mine drainage in the Upper Tenmile Creek Superfund Site located in the Rimini Mining District, near Helena, MT. The system consists of a wetland pretreatment fo...

  12. Effect of ketoprofen treatment on the uterine inflammatory response after AI of jennies with frozen semen.

    PubMed

    Vilés, K; Rabanal, R; Rodríguez-Prado, M; Miró, J

    2013-04-15

    Artificial insemination (AI) involving the placing of frozen-thawed semen directly into the jenny uterine body is associated with very low pregnancy rates. This might be because of an exacerbation of the acute response of the endometrium to sperm, as seen in mares with persistent induced mating endometritis. Pregnancy rates can be increased in such mares, however, by including anti-inflammatory treatments in the insemination protocol (Bucca S, Carli A, Buckley T, Dolci G, Fogarty U. The use of dexamethasone administered to mares at breeding time in the modulation of persistent mating induced endometritis. Theriogenology 2008;70:1093-100; Rojer H, Aurich C. Treatment of persistent mating-induced endometritis in mares with the non-steroid anti-inflammatory drug vedaprofen. Reprod Domest Anim 2010;45:e458-60). To investigate the endometritis caused by the use of frozen-thawed semen in jennies, and to assess the response to ketoprofen treatment, endometrial cytological samples and biopsies from six healthy jennies were examined in a crossover design experiment. Samples were taken from jennies in estrus (E; control) and at 6 hours after AI with or without ketoprofen (+K and -K, respectively). Ketoprofen was administered iv 24 hours before and for 4 days after insemination (total = 2.2 mg/kg/24 hours for 5 days). All animals showed a severe inflammatory response to semen deposition. Polymorphonuclear neutrophil numbers in the cytological smears and biopsies differed significantly between the +K and E animals. No significant differences were recorded, however, between the +K and -K treatments. Eosinophils were observed in all sample types from all groups; these cells appear to be a feature of the normal jenny endometrium. Slight fibrosis was observed in some biopsies, but no significant relationship with inflammation was found. Intense cyclooxygenase-2 (COX-2) immunohistochemical labeling was detected in the -K biopsies. Less intense labeling was seen in those of the +K

  13. IgG, IgA, and lysozyme in Martina Franca donkey jennies and their foals.

    PubMed

    Veronesi, Maria C; Dall'Ara, Paola; Gloria, Alessia; Servida, Francesco; Sala, Elisabetta; Robbe, Domenico

    2014-04-01

    Because immune transfer from jenny to donkey foal is mostly unknown, the aim of the present study was to evaluate, from 5 days before to 10 days after foaling, immunoglobulin (Ig)G, IgA, and lysozyme peripartal concentrations in serum and mammary secretions of 10 healthy, spontaneously foaling Martina Franca jennies and in serum of their mature, viable, healthy foals, in the first 10 days after birth. The results showed that, in jennies, mammary secretion of IgG levels (ranging between 16 and 75 mg/mL) and IgA (0.9-2 mg/mL), and IgG (6.8-13.5 mg/mL) and IgA (0.5-2.4 mg/mL) serum concentrations were not different along the time of study. Also, IgG concentrations in serum of foals did not show significant differences although a high level was observed at 12 hours after birth (8 mg/mL), and IgA concentrations in serum of foals did not show any significant difference, although a high level was observed at 12 hours after birth (1.2 mg/mL). Lysozyme increased significantly at Day 2 after parturition in mammary secretions of jennies (551.9 μg/mL) and at 12 hours in serum of foals (25.9 μg/mL). The study demonstrated that the pattern of passive immune transfer in donkey foals seems to be similar to that reported for the horse foal, with IgG predominating IgA in serum and mammary secretions of the jenny and also in serum of foals. The most significant early increase in foals' serum concerns lysozyme, which probably plays an important role in the innate immunity of the donkey foal in the first challenging hours after birth.

  14. Shallow-water seismoacoustic noise generated by tropical storms Ernesto and Florence.

    PubMed

    Traer, James; Gerstoft, Peter; Bromirski, Peter D; Hodgkiss, William S; Brooks, Laura A

    2008-09-01

    Land-based seismic observations of double frequency (DF) microseisms generated during tropical storms Ernesto and Florence are dominated by signals in the 0.15-0.5 Hz band. In contrast, data from sea floor hydrophones in shallow water (70 m depth, 130 km off the New Jersey coast) show dominant signals in the ocean gravity-wave frequency band, 0.02-0.18 Hz, and low amplitudes from 0.18 to 0.3 Hz, suggesting significant opposing wave components necessary for DF microseism generation were negligible at the site. Florence produced large waves over deep water while Ernesto only generated waves in coastal regions, yet both storms produced similar spectra. This suggests near-coastal shallow water as the dominant region for observed microseism generation.

  15. Postpartum reproductive activities and gestation length in Martina Franca jennies, an endangered Italian donkey breed.

    PubMed

    Tosi, Umberto; Bernabò, Nicola; Verni, Fabiana; Valbonetti, Luca; Muttini, Aurelio; Mattioli, Mauro; Barboni, Barbara

    2013-07-15

    The donkey reproductive physiology is still partially known despite the increasing risk of extinction involving several breeds. The present study was designed to describe the postpartum (PP) reproductive performance of an Italian endangered breed: the Martina Franca donkey. To this aim, 52 jennies were monitored to define the foal-heat (FH) and the first and second PP estrus episodes (1st PPe and 2nd PPe). The data indicate that jennies spontaneously recovered reproduction in approximately 10 days after delivery. Then heats occur with a regular interval of approximately 23 days. Estrus length was 1 week in FH and the 2nd PPe and significantly shorter in the 1st PPe. Estrus-ovulation, and delivery-ovulation interval and follicle growth were similar in all animals tested. Pregnancy rate (PR) was lower when natural mating occurred during the FH and 2nd PPe (approximately 60%) than during the 1st PPe (approximately 70%; P < 0.01). In addition, the higher PR (>80%; P < 0.01) was recorded in jennies when the FH occurred after the first week PP and it dropped (<50%) in early FH animals. The PR was also affected by the season and by age: it significantly declined during the autumn-winter season and in subjects older than the sixth year of age. For the first time, the reproductive performance of PP donkeys were defined on a large number of Martina Franca jennies thus offering useful information to improve farm management with an immediate benefit to increase livestock production. This aspect of management improvement might be particularly important if applied to an endangered breed such as Martina Franca donkeys.

  16. Sector collapse at Kick 'em Jenny submarine volcano (Lesser Antilles): numerical simulation and landslide behaviour

    NASA Astrophysics Data System (ADS)

    Dondin, Frédéric; Lebrun, Jean-Frédéric; Kelfoun, Karim; Fournier, Nicolas; Randrianasolo, Auran

    2012-03-01

    Kick 'em Jenny volcano is the only known active submarine volcano in the Lesser Antilles. It lies within a horseshoe-shaped structure open to the west northwest, toward the deep Grenada Basin. A detailed bathymetric survey of the basin slope at Kick 'em Jenny and resulting high-resolution digital elevation model allowed the identification of a major submarine landslide deposit. This deposit is thought to result from a single sector collapse event at Kick 'em Jenny and to be linked to the formation of the horseshoe-shaped structure. We estimated the volume and the leading-edge runout of the landslide to be ca. 4.4 km3 and 14 km, respectively. We modelled a sector collapse event of a proto Kick 'em Jenny volcano using VolcFlow, a finite difference code based on depth-integrated mass and momentum equations. Our models show that the landslide can be simulated by either a Coulomb-type rheology with low basal friction angles (5.5°-6.5°) and a significant internal friction angle (above 17.5°) or, with better results, by a Bingham rheology with low Bingham kinematic viscosity (0 < ν B < 30 m2/s) and high shear strength (130 < γ ≤ 180 m2/s2). The models and the short runout distance suggest that the landslide travelled as a stiff cohesive flow affected by minimal granular disaggregation and slumping on a non-lubricated surface. The main submarine landslide deposit can therefore be considered as a submarine mass slide deposit that behaved like a slump.

  17. Factors affecting pregnancy length and phases of parturition in Martina Franca jennies.

    PubMed

    Carluccio, Augusto; Gloria, Alessia; Veronesi, Maria Cristina; De Amicis, Ippolito; Noto, Federico; Contri, Alberto

    2015-09-01

    The knowledge of normal pregnancy length, duration of parturition stages, and neonatal early adaptation is mandatory for a rationale management of birth, especially in monotocous species with long gestations. This study reports data obtained from a large number of Martina Franca jennies with normal healthy pregnancies and spontaneous eutocic delivery of a mature, healthy, and viable donkey foal. Pregnancy lasts, on average, 371 days, and only the fetal gender significantly determines pregnancy length, with longer gestations observed in jennies bearing male fetuses. Other factors such as the year of foaling, month of ovulation, month of parturition, birth weight of the foal, and age of the jenny did not influence pregnancy length. The first stage of foaling lasted on average 65 minutes, the second stage 19 minutes, and the third stage 58 minutes. The umbilical cord ruptured on average within 16 minutes after birth; the foal stood up in 61 minutes and suckled the colostrum for the first time within 10 minutes after birth and again after 143 minutes of birth; meconium passage occurred, on average, 86 minutes after birth. Although times reported for the process of foaling are similar to data reported for the horse, the times for early neonatal donkey foal adaptation are longer as compared to the horse foal.

  18. Two-dimensional simulations of explosive eruptions of Kick-em Jenny and other submarine volcanos

    SciTech Connect

    Gisler, Galen R.; Weaver, R. P.; Mader, Charles L.; Gittings, M. L.

    2004-01-01

    Kick-em Jenny, in the Eastern Caribbean, is a submerged volcanic cone that has erupted a dozen or more times since its discovery in 1939. The most likely hazard posed by this volcano is to shipping in the immediate vicinity (through volcanic missiles or loss-of-buoyancy), but it is of interest to estimate upper limits on tsunamis that might be produced by a catastrophic explosive eruption. To this end, we have performed two-dimensional simulations of such an event in a geometry resembling that of Kick-em Jenny with our SAGE adaptive mesh Eulerian multifluid compressible hydrocode. We use realistic equations of state for air, water, and basalt, and follow the event from the initial explosive eruption, through the generation of a transient water cavity and the propagation of waves away from the site. We find that even for extremely catastrophic explosive eruptions, tsunamis from Kick-em Jenny are unlikely to pose significant danger to nearby islands. For comparison, we have also performed simulations of explosive eruptions at the much larger shield volcano Vailuluu in the Samoan chain, where the greater energy available can produce a more impressive wave. In general, however, we conclude that explosive eruptions do not couple well to water waves. The waves that are produced from such events are turbulent and highly dissipative, and don't propagate well. This is consistent with what we have found previously in simulations of asteroid-impact generated tsunamis. Non-explosive events, however, such as landslides or gas hydrate releases, do couple well to waves, and our simulations of tsunamis generated by subaerial and sub-aqueous landslides demonstrate this.

  19. Differences in ability of jennies and mares to conceive with cooled and frozen semen containing glycerol or not.

    PubMed

    Vidament, Marianne; Vincent, Pierrick; Martin, François-Xavier; Magistrini, Michele; Blesbois, Elisabeth

    2009-05-01

    A suitable method for the cryopreservation of donkey semen would be very valuable for the ex situ management of genetic diversity in this species. This report uses a variety of observation and trials to evaluate the effect of cryoprotectants in per-cycle pregnancy rates (PC) in equids females (jennies (donkey) and mares (horse)). This was explored by (1) comparing the results of insemination of jennies and mares with cooled or frozen donkey semen, (2) examining the possible toxic effect of the cryoprotectant (CPA) glycerol in these two species and (3) studying alternative solutions. Donkey and horse semen was either used immediately, or cooled according to some steps of the pre-freezing procedure or frozen and thawed. The pre-freezing procedure included semen dilution, centrifugation, resuspension in milk or in INRA82+2% egg yolk+various % CPA (expressed as final concentrations in extended semen (v/v)) and then cooling to 4 degrees C. PC was similar in mares and jennies inseminated with donkey semen cooled to 4 degrees C in milk. However, the PC was significantly higher in mares than in jennies when donkey semen was frozen with 2.2% glycerol (36%, n=50 cycles vs. 11%, n=38 cycles; P<0.01). Increasing the concentrations of glycerol (0, 2.2, 3.5, 4.8%) before cooling stallion semen resulted in a progressive decrease in mare PC (87, 53, 53, 13% (n=15 cycles for each concentration); P<0.0001). The addition of 2.2% glycerol before cooling donkey semen decreased the PC measured in jennies to 0. The replacement of glycerol by 2% dimethylformamide increased the fertility obtained in jennies with cooled donkey semen (PC: 67%, n=12 cycles) but did not increase the fertility obtained with frozen-thawed donkey semen (PC: 11%, n=28 cycles with dimethylformamide vs. 0%, n=16 cycles with glycerol). In conclusion, this study clearly shows that the ability of jennies to conceive after AI with donkey frozen semen is lower than that of mares. Glycerol affects the fertility of donkey

  20. Possible Origins of the `Free T Phase' Seismic Signals Generated by the Kick `em Jenny Volcano

    NASA Astrophysics Data System (ADS)

    Mohais, A.; Mohais, R.

    2006-12-01

    The Kick 'em Jenny submarine volcano located approximately 9km off the North Coast of Grenada in the Lesser Antilles, was discovered in 1939. Since then, it has had a history of twelve recorded eruptions. Geophysicists have determined over the years that many of these eruptions have been accompanied by T- phases occurring in the absence of P and S-phases. Although these authors have characterized these 'free T- phases' and have analyzed the frequency components of the seismic activity, there has been little attention given to the possible origins of these signals. Based on the analysis of the seismic signals of eruptions of Kick 'em Jenny, an attempt is made to determine a possible source of the free T-phases. Previous studies of sample free T-phases showed a spectral peak of 0.7 Hz, corresponding to a period of 1.43 seconds. Although no definitive statement by previous authors was made on this analysis, one may be led to categorise the event as a long period event. When the power spectral densities of a long period event from a volcanic earthquake was compared to that of a free T phase however, there was a marked difference between the two. Within the bandwidth of 1 to 6 Hz, the power spectrum of the T phase of an earthquake exhibits frequency peaks beyond the 10 Hz value as compared to a value less than 1. Also in the 1990 Kick 'em Jenny eruption, there was a period of harmonic tremor preceding the T phase. Harmonic tremor lends itself to the idea of the signal originating from a resonator. One possibility is the resonance of a fluid filled cavity which accompanies the oscillation of magma within a fissure arising from rapid degassing. This may be applicable in the case of Kick 'em Jenny since it is in fact active. The other possibility is the presence of reverberations in the stratified structure of the volcano. Other evidence suggests that in the time domain there is a significant difference between the free T-phase and the earthquake generated T phase, in that

  1. Reproductive Patterns in the Non-Breeding Season in Asinina de Miranda Jennies.

    PubMed

    Quaresma, M; Silva, S R; Payan-Carreira, R

    2015-10-01

    This study aims to characterize the reproductive patterns in Asinina de Miranda jennies during the non-breeding season. Reproductive activity was surveyed in 12 females, aged between 3 and 18 years old, using ultrasound and teasing with a jack. The animals were monitored from September to April, six in each consecutive year. Of these 12 females, nine showed disruption to the normal pattern of ovarian activity during the non-breeding season. Loss of normal cyclicity included anoestrus (41.7%), silent ovulatory oestrus (25%), and persistence of corpus luteum (8.3%). Only three females maintained a regular cyclic pattern with oestrous behaviour during the non-breeding season. Anoestrus began in early November and lasted for an average of 147 ± 28 days (113-191 days), ending near to the spring equinox. Onset of silent oestrous cycles began more erratically, between October and February. In both groups the first behavioural ovulation of the year occurred around the time of the spring equinox. Disrupted reproductive activity was preceded by a shorter oestrous cycle only in females entering anoestrus. The mean follicle size in the first ovulation of the year was larger than in the reproductive season (44.7 ± 2.45 mm vs 39.2 ± 3.60 mm) in anoestrous jennies with protracted oestrus. Though age and body condition score (BCS) were associated, changes in BCS below a threshold of four points (for anoestrus) and five points (for silent oestrus) contributed greatly to disruption of reproductive cycles. BCS in females with regular oestrous cycles during the winter season remained unchanged or exceeded five points prior to the winter solstice.

  2. Ernesto Vasconcellos' Astronomia Photographica: the earliest popular book on astronomical photography?

    NASA Astrophysics Data System (ADS)

    Bonifácio, Vitor; Malaquias, Isabel; Fernandes, João

    2008-07-01

    Portugal, albeit with its own cultural distinctiveness, was not immune to the ideologies permeating nineteenth-century European society, in particular those concerning the social advantages of science and science popularisation. The country's high illiteracy rate hampered but did not prevent several popularisation efforts, which were usually led by professors and armed forces officers. In 1886 Astronomia Photographica (Astronomical Photography), a book popularising astrophotography, was published in Lisbon as part of a collection entitled People and Schools Library. The book seems an odd editorial choice given that, at the time, Portugal's major astronomical institutions pursued astrometric research and there was a virtual absence in the country of amateur astronomers. International astronomical developments, the author's interest in the scientific applications of photography and even the editorial timing are likely explanations for the publication of Astronomia Photographica, but we believe a definitive answer is still not available. The style of Astronomia Photographica is historical and informative, without being technical; clearly it is not a ‘hands-on guide’. The contents of the book show that the author, Ernesto Júlio de Carvalho e Vasconcellos, a naval officer, contacted several experts and was aware of the latest developments in astronomical photography. What makes this a unique book is its content, and its inclusion in a popularisation collection with an exceptionally high circulation at such an early time.

  3. Hydrothermal Venting at Kick'Em Jenny Submarine Volcano (West Indies)

    NASA Astrophysics Data System (ADS)

    Carey, S.; Croff Bell, K. L.; Dondin, F. J. Y.; Roman, C.; Smart, C.; Lilley, M. D.; Lupton, J. E.; Ballard, R. D.

    2014-12-01

    Kick'em Jenny is a frequently-erupting, shallow submarine volcano located ~8 km off the northwest coast of Grenada in the West Indies. The last eruption took place in 2001 but did not breach the sea surface. Focused and diffuse hydrothermal venting is taking place mainly within a small (~100 x 100 m) depression within the 300 m diameter crater of the volcano at depths of about 265 meters. Near the center of the depression clear fluids are being discharged from a focused mound-like vent at a maximum temperature of 180o C with the simultaneous discharge of numerous bubble streams. The gas consists of 93-96% CO2 with trace amounts of methane and hydrogen. A sulfur component likely contributes 1-4% of the gas total. Gas flux measurements on individual bubble streams ranged from 10 to 100 kg of CO2 per day. Diffuse venting with temperatures 5 to 35o C above ambient occurs throughout the depression and over large areas of the main crater. These zones are extensively colonized by reddish-yellow bacterial mats with the production of loose Fe-oxyhydroxides largely as a surface coating and in some cases, as fragile spires up to several meters in height. A high-resolution photo mosaic of the crater depression was constructed using the remotely operated vehicle Hercules on cruise NA039 of the E/V Nautilus. The image revealed prominent fluid flow patterns descending the sides of the depression towards the base. We speculate that the negatively buoyant fluid flow may be the result of second boiling of hydrothermal fluids at Kick'em Jenny generating a dense saline component that does not rise despite its elevated temperature. Increased density may also be the result of high dissolved CO2 content of the fluids, although we were not able to measure this directly. The low amount of sulphide mineralization on the crater floor suggests that deposition may be occurring mostly subsurface, in accord with models of second boiling mineralization from other hydrothermal vent systems.

  4. Numerical tsunami hazard assessment of the submarine volcano Kick 'em Jenny in high resolution are

    NASA Astrophysics Data System (ADS)

    Dondin, Frédéric; Dorville, Jean-Francois Marc; Robertson, Richard E. A.

    2016-04-01

    Landslide-generated tsunami are infrequent phenomena that can be potentially highly hazardous for population located in the near-field domain of the source. The Lesser Antilles volcanic arc is a curved 800 km chain of volcanic islands. At least 53 flank collapse episodes have been recognized along the arc. Several of these collapses have been associated with underwater voluminous deposits (volume > 1 km3). Due to their momentum these events were likely capable of generating regional tsunami. However no clear field evidence of tsunami associated with these voluminous events have been reported but the occurrence of such an episode nowadays would certainly have catastrophic consequences. Kick 'em Jenny (KeJ) is the only active submarine volcano of the Lesser Antilles Arc (LAA), with a current edifice volume estimated to 1.5 km3. It is the southernmost edifice of the LAA with recognized associated volcanic landslide deposits. The volcano appears to have undergone three episodes of flank failure. Numerical simulations of one of these episodes associated with a collapse volume of ca. 4.4 km3 and considering a single pulse collapse revealed that this episode would have produced a regional tsunami with amplitude of 30 m. In the present study we applied a detailed hazard assessment on KeJ submarine volcano (KeJ) form its collapse to its waves impact on high resolution coastal area of selected island of the LAA in order to highlight needs to improve alert system and risk mitigation. We present the assessment process of tsunami hazard related to shoreline surface elevation (i.e. run-up) and flood dynamic (i.e. duration, height, speed...) at the coast of LAA island in the case of a potential flank collapse scenario at KeJ. After quantification of potential initial volumes of collapse material using relative slope instability analysis (RSIA, VolcanoFit 2.0 & SSAP 4.5) based on seven geomechanical models, the tsunami source have been simulate by St-Venant equations-based code

  5. Donkey jack (Equus asinus) semen cryopreservation: studies of seminal parameters, post breeding inflammatory response, and fertility in donkey jennies.

    PubMed

    Rota, A; Panzani, D; Sabatini, C; Camillo, F

    2012-11-01

    The aims of this study were (1) to evaluate motility parameters of donkey jack (jack; Equus asinus) semen cryopreserved in INRA-96 (INRA; IMV Technologies, France, 2% egg-yolk enriched) using either glycerol (GLY) or ethylene glycol (EG) as a cryoprotector; (2) to compare in vitro the postthaw re-extension with homologous seminal plasma (SPL) or INRA; (3) to compare fertility in donkey jennies (jennies; Equus asinus) timed artificially inseminated with jack semen cryopreserved using GLY or EG, re-extended with INRA; (4) to compare fertility in jennies timed artificially inseminated with jack semen cryopreserved using GLY re-extended with SPL, INRA, or not re-extended (NN); and (5) to describe some preliminary results of the inflammatory uterine response postbreeding. Semen from two jacks was collected and frozen in an INRA-2% egg yolk extender added of either 2.2% GLY or 1.4% EG. Postthaw motility was evaluated by a computer-assisted motility analyzer. Uterine inflammatory response and fertility were evaluated after artificial insemination (AI) of 13 jennies with frozen-thawed semen, either further extended with INRA (Group GLY-INRA, 13 cycles, and EG-INRA, 8 cycles), or with SPL (Group GLY-SPL, 13 cycles), or not re-extended (GLY-NN, 5 cycles). In each cycle, jennies were bred twice with 500 × 10(6) sperm cells (250 × 10(6) from each jack), at fixed times after induction of ovulation, and uterus was flushed at 6 and 10 h after first and second breeding, respectively. Cells in the recovered fluid were counted and distinguished as polymorphonuclear neutrophils (PMN) or other cell types. Total and progressive motility did not differ between cryoprotectants, but were higher when semen samples were re-extended in INRA, compared with SPL (P < 0.05). Pregnancy was diagnosed by transrectal palpation and ultrasonography examinations at 14 and 16 days postovulation. In 7/13 (53.8%) jennies and 12/39 (30.4%) cycles postbreeding intrauterine fluid accumulation was observed

  6. Deglaciation and postglacial environmental changes in the Teton Mountain Range recorded at Jenny Lake, Grand Teton National Park, WY

    NASA Astrophysics Data System (ADS)

    Larsen, Darren J.; Finkenbinder, Matthew S.; Abbott, Mark B.; Ofstun, Adam R.

    2016-04-01

    Sediments contained in lake basins positioned along the eastern front of the Teton Mountain Range preserve a continuous and datable record of deglaciation and postglacial environmental conditions. Here, we develop a multiproxy glacier and paleoenvironmental record using a combination of seismic reflection data and multiple sediment cores recovered from Jenny Lake and other nearby lakes. Age control of Teton lake sediments is established primarily through radiocarbon dating and supported by the presence of two prominent rhyolitic tephra deposits that are geochemically correlated to the widespread Mazama (∼7.6 ka) and Glacier Peak (∼13.6 ka) tephra layers. Multiple glacier and climate indicators, including sediment accumulation rate, bulk density, clastic sediment concentration and flux, organic matter (concentration, flux, δ13C, δ15N, and C/N ratios), and biogenic silica, track changes in environmental conditions and landscape development. Sediment accumulation at Jenny Lake began centuries prior to 13.8 ka and cores from three lakes demonstrate that Teton glacier extents were greatly reduced by this time. Persistent ice retreat in Cascade Canyon was slowed by an interval of small glacier activity between ∼13.5 and 11.5 ka, prior to the end of glacial lacustrine sedimentation ∼11.5 ka. The transition to non-glacial sediments marks the onset of Holocene conditions at Jenny Lake and reflects a shift toward warmer summers, increased vegetation cover, and landscape stability in the Tetons. We discuss the Teton lake sediment records within the context of other regional studies in an effort to construct a comprehensive overview of deglaciation and postglacial environmental conditions at Grand Teton National Park.

  7. Cold seeps associated with a submarine debris avalanche deposit at Kick'em Jenny volcano, Grenada (Lesser Antilles)

    NASA Astrophysics Data System (ADS)

    Carey, Steven; Ballard, Robert; Bell, Katherine L. C.; Bell, Richard J.; Connally, Patrick; Dondin, Frederic; Fuller, Sarah; Gobin, Judith; Miloslavich, Patricia; Phillips, Brennan; Roman, Chris; Seibel, Brad; Siu, Nam; Smart, Clara

    2014-11-01

    Remotely operated vehicle (ROV) exploration at the distal margins of a debris avalanche deposit from Kick'em Jenny submarine volcano in Grenada has revealed areas of cold seeps with chemosynthetic-based ecosystems. The seeps occur on steep slopes of deformed, unconsolidated hemipelagic sediments in water depths between 1952 and 2042 m. Two main areas consist of anastomosing systems of fluid flow that have incised local sediments by several tens of centimeters. No temperature anomalies were observed in the vent areas and no active flow was visually observed, suggesting that the venting may be waning. An Eh sensor deployed on a miniature autonomous plume recorder (MAPR) recorded a positive signal and the presence of live organisms indicates at least some venting is still occurring. The chemosynthetic-based ecosystem included giant mussels (Bathymodiolus sp.) with commensal polychaetes (Branchipolynoe sp.) and cocculinid epibionts, other bivalves, Siboglinida (vestimentiferan) tubeworms, other polychaetes, and shrimp, as well as associated heterotrophs, including gastropods, anemones, crabs, fish, octopods, brittle stars, and holothurians. The origin of the seeps may be related to fluid overpressure generated during the collapse of an ancestral Kick'em Jenny volcano. We suggest that deformation and burial of hemipelagic sediment at the front and base of the advancing debris avalanche led to fluid venting at the distal margin. Such deformation may be a common feature of marine avalanches in a variety of geological environments especially along continental margins, raising the possibility of creating large numbers of ephemeral seep-based ecosystems.

  8. Numerical Tsunami Hazard Assessment of the Only Active Lesser Antilles Arc Submarine Volcano: Kick 'em Jenny.

    NASA Astrophysics Data System (ADS)

    Dondin, F. J. Y.; Dorville, J. F. M.; Robertson, R. E. A.

    2015-12-01

    The Lesser Antilles Volcanic Arc has potentially been hit by prehistorical regional tsunamis generated by voluminous volcanic landslides (volume > 1 km3) among the 53 events recognized so far. No field evidence of these tsunamis are found in the vincity of the sources. Such a scenario taking place nowadays would trigger hazardous tsunami waves bearing potentially catastrophic consequences for the closest islands and regional offshore oil platforms.Here we applied a complete hazard assessment method on the only active submarine volcano of the arc Kick 'em Jenny (KeJ). KeJ is the southernmost edifice with recognized associated volcanic landslide deposits. From the three identified landslide episodes one is associated with a collapse volume ca. 4.4 km3. Numerical simulations considering a single pulse collapse revealed that this episode would have produced a regional tsunami. An edifice current volume estimate is ca. 1.5 km3.Previous study exists in relationship to assessment of regional tsunami hazard related to shoreline surface elevation (run-up) in the case of a potential flank collapse scenario at KeJ. However this assessment was based on inferred volume of collapse material. We aim to firstly quantify potential initial volumes of collapse material using relative slope instability analysis (RSIA); secondly to assess first order run-ups and maximum inland inundation distance for Barbados and Trinidad and Tobago, i.e. two important economic centers of the Lesser Antilles. In this framework we present for seven geomechanical models tested in the RSIA step maps of critical failure surface associated with factor of stability (Fs) for twelve sectors of 30° each; then we introduce maps of expected potential run-ups (run-up × the probability of failure at a sector) at the shoreline.The RSIA evaluates critical potential failure surface associated with Fs <1 as compared to areas of deficit/surplus of mass/volume identified on the volcanic edifice using (VolcanoFit 2

  9. Forensic identification of skeletal remains from members of Ernesto Che Guevara's guerrillas in Bolivia based on DNA typing.

    PubMed

    Lleonart, R; Riego, E; Saínz de la Peña, M V; Bacallao, K; Amaro, F; Santiesteban, M; Blanco, M; Currenti, H; Puentes, A; Rolo, F; Herrera, L; de la Fuente, J

    2000-01-01

    We report the positive identification of several members of the guerrillas led by Ernesto "Che" Guevara on the 1960 s in Bolivia by means of DNA fingerprinting. Successful DNA typing of both short tandem repeat loci and the hypervariable region of the human mitochondrial DNA was achieved after extracting total DNA from bones obtained from two burial sites. Given the size of the Cuban database for the STR allele frequencies, a conservative approach was followed to estimate the statistical significance of the genetic evidence. The estimated probabilities of paternity for the two cases in which the paternity logic was applied were higher than 99%. One case was analyzed using mitochondrial DNA and could not be excluded from the identity proposed by the forensic anthropology team. A fourth case was identified by exclusion, on the basis of the positive identification of the other remains, the historical and other anthropological evidence.

  10. Hydrothermal mineralization at Kick'em Jenny submarine volcano in the Lesser Antilles island arc

    NASA Astrophysics Data System (ADS)

    Olsen, R.; Carey, S.; Sigurdsson, H.; Cornell, W. C.

    2011-12-01

    Kick 'em Jenny (KeJ) is an active submarine volcano located in the Lesser Antilles island arc, ~7.5 km northwest of Grenada. Of the twelve eruptions detected since 1939, most have been explosive as evidenced by eyewitness accounts in 1939, 1974, and 1988 and the dominance of explosive eruption products recovered by dredging. In 2003, vigorous hydrothermal activity was observed in the crater of KeJ. Video footage taken by a remotely operated vehicle (ROV) during the cruise RB-03-03 of the R/V Ronald Brown documented the venting of a vapor phase in the form of bubbles that ascended through the water column and a clear fluid phase in the form of shimmering water. The shimmering water generally ascended through the water column but can also been seen flowing down gradient from a fissure at the top of a fine-grained sediment mound. These fine-grained sediment mounds are the only structure associated with hydrothermal venting; spire or chimney structures were not observed. Hydrothermal venting was also observed coming from patches of coarse-grained volcaniclastic sediment on the crater floor and from talus slopes around the perimeter of the crater. Samples were collected from these areas and from areas void of hydrothermal activity. XRD and ICPMS analyses of bulk sediment were carried out to investigate the geochemical relationships between sediment types. Sediment samples from the hydrothermal mound structures are comprised of the same components (plagioclase, amphibole, pyroxene, and scoria) as sediment samples from areas void of hydrothermal activity (primary volcaniclastic sediment) in the 500-63 μm size range. High resolution grain size analyses show that >78% of sediment in the hydrothermal mound samples are between 63-2 μm with 6-20% clay sized (<2 μm) whereas <40% of the primary volcaniclastic sediment is between 63-2 μm with ~2% clay sized. The presence of clay minerals (smectite, illite, talc, and I/S mixed layer) in the hydrothermal mound samples was

  11. Hydrothermal venting and mineralization in the crater of Kick'em Jenny submarine volcano, Grenada (Lesser Antilles)

    NASA Astrophysics Data System (ADS)

    Carey, Steven; Olsen, Rene; Bell, Katherine L. C.; Ballard, Robert; Dondin, Frederic; Roman, Chris; Smart, Clara; Lilley, Marvin; Lupton, John; Seibel, Brad; Cornell, Winton; Moyer, Craig

    2016-03-01

    Kick'em Jenny is a frequently erupting, shallow submarine volcano located 7.5 km off the northern coast of Grenada in the Lesser Antilles subduction zone. Focused and diffuse hydrothermal venting is taking place mainly within a small (˜70 × 110 m) depression within the 300 m diameter crater of the volcano at depths of about 265 m. Much of the crater is blanketed with a layer of fine-grained tephra that has undergone hydrothermal alteration. Clear fluids and gas are being discharged near the center of the depression from mound-like vents at a maximum temperature of 180°C. The gas consists of 93-96% CO2 with trace amounts of methane and hydrogen. Gas flux measurements of individual bubble streams range from 10 to 100 kg of CO2 per day. Diffuse venting with temperatures 5-35°C above ambient occurs throughout the depression and over large areas of the main crater. These zones are colonized by reddish-yellow bacteria with the production of Fe-oxyhydroxides as surface coatings, fragile spires up to several meters in height, and elongated mounds up to tens of centimeters thick. A high-resolution photomosaic of the inner crater depression shows fluid flow patterns descending the sides of the depression toward the crater floor. We suggest that the negatively buoyant fluid flow is the result of phase separation of hydrothermal fluids at Kick'em Jenny generating a dense saline component that does not rise despite its elevated temperature.

  12. Geogenic Enrichment of PTEs and the " Serpentine Syndrome"(H. Jenny, 1980). A proxy for soil remediation

    NASA Astrophysics Data System (ADS)

    Bini, Claudio; Maleci, Laura

    2014-05-01

    Serpentine soils have relatively high concentrations of PTEs (e.g., Co, Cr, Cu, Fe, Ni) but generally low amounts of major nutrients. They often bear a distinctive vegetation, and a frequently-used approach to understanding serpentine ecology and environmental hazard has been the chemical analysis of soils and plants. Long-term studies on aspects of serpentine soils and their vegetation provide results on total concentrations, or on plant-available fractions, of soil elements which counteract ecological conditions. For example, there is evidence of Ni toxicity at Ni-concentration >0.3 mg/L in the soil solution (Johnston and Proctor, 1981). The serpentine vegetation differs from the conterminous non-serpentine areas, being often endemic, and showing macroscopic physionomical characters such as dwarfism, prostrate outcome, glaucescence and glabrescence, leaves stenosis, root shortening (what Jenny, 1980, called "the serpentine syndrome"). Similarly, at microscopic level cytomorphological characteristics of the roots and variations in biochemical parameters such as LPO and phenols have been recorded in serpentine native vegetation (Giuliani et al., 2008). Light microscopy observations showed depressed mitotic activity in the meristematic zone, and consequent reduced root growth (Gabbrielli et al., 1990) The metal content of plants growing on serpentine soils at sites with different microclimatic conditions has been examined by several authors (e.g. Bini et al., 1993; Dinelli and Lombini, 1996) . A preferential Ni distribution in epidermis and sclerenchima has been observed in the stem of Alyssum bertoloni, a well known Ni-accumulator plant (Vergnano Gambi, 1975). The different tolerance mechanisms responsible for plant adaption to high concentrations of PTEs in serpentine soils can be related to the capacity of plants either to limit metal uptake and translocation or to accumulate metals in non toxic forms. The majority of serpentine species (e.g. Silene italica) tend

  13. Ultra-high Resolution Mapping of the Inner Crater of the Active Kick'em Jenny Volcano

    NASA Astrophysics Data System (ADS)

    Hart, L.; Scott, C.; Tominaga, M.; Smart, C.; Vaughn, I.; Roman, C.; Carey, S.; German, C. R.; Participants, T.

    2015-12-01

    We conducted high-resolution geological characterization of a 0.015km^2 region of the inner crater of the most active submarine volcano in the Caribbean, Kick'em Jenny, located 8 km off Grenada in the Lesser Antilles Island Arc. We obtained digital still images and microbathymetery at an altitude of 3 m from the seafloor by using stereo cameras and a BlueView system mounted on Remotely Operated Vehicle (ROV) Hercules during the NA054 cruise on E/V Nautilus (Sept. - Oct. 2014). The seafloor images were processed to construct 2-D photo mosaics of the survey area using Standard Hercules Imaging Suite. We systematically classified the photographed seafloor geology based on the distribution of seafloor morphology and the observable rock fragment and outcrop sizes. The center of the crater floor shows a smooth, coherent texture with little variation in sea floor morphology. From immediately outside this area toward the crater rim, we observe an extensive area covered with outcrops, small rocks, and sediment: and within this area, (1) the north section is partially covered by uneven outcrops with elongated lineaments and a course, rugged seafloor with individual rock fragments observable; (2) the middle section contains high variability and heterogeneity in seafloor morphology in a non-systematic manner; and (3) overall, the southern most section displays subdued seafloor features both in space and variability compared to the other areas. The distributions of rock fragments were classified into four distinct sizes. We observe: (i) little variation in size distribution near the center of the crater floor; and (ii) rock fragment size increasing toward the rim of the crater. To obtain a better understanding of the link between variation in seafloor morphology, rock size distribution, and other in situ processes, we compare our observations on the digital photo mosaic to bathymetry data and ROV visuals (e.g. vents and bacterial mats).

  14. Level II scour analysis for Bridge 27 (WSTOTH00070027) on Town Highway 7, crossing Jenny Coolidge Brook, Weston, Vermont

    USGS Publications Warehouse

    Wild, Emily C.

    1998-01-01

    This report provides the results of a detailed Level II analysis of scour potential at structure WSTOTH00070027 on Town Highway 7 crossing Jenny Coolidge Brook, Weston, Vermont (figures 1–8). A Level II study is a basic engineering analysis of the site, including a quantitative analysis of stream stability and scour (FHWA, 1993). Results of a Level I scour investigation also are included in appendix E of this report. A Level I investigation provides a qualitative geomorphic characterization of the study site. Information on the bridge, gleaned from Vermont Agency of Transportation (VTAOT) files, was compiled prior to conducting Level I and Level II analyses and is found in appendix D. The site is in the Green Mountain section of the New England physiographic province in southwestern Vermont. The 2.9-mi2 drainage area is in a predominantly rural and forested basin. In the vicinity of the study site, the surface cover is pasture downstream of the bridge while upstream of the bridge is forested. In the study area, the Jenny Coolidge Brook has an incised, sinuous channel with a slope of approximately 0.04 ft/ft, an average channel top width of 51 ft and an average bank height of 6 ft. The channel bed material ranges from sand to boulders with a median grain size (D50) of 122 mm (0.339 ft). The geomorphic assessment at the time of the Level I and Level II site visit on August 20, 1996, indicated that the reach was stable. The Town Highway 7 crossing of the Jenny Coolidge Brook is a 52-ft-long, two-lane bridge consisting of a 50-foot steel-beam span (Vermont Agency of Transportation, written communication, April 7, 1995). The opening length of the structure parallel to the bridge face is 49.2 ft. The bridge is supported by vertical, concrete abutments with wingwalls. The channel is skewed approximately 5 degrees to the opening while the computed opening-skew-to-roadway is 15 degrees. The legs of the skeleton-type right abutment were exposed approximately 2 feet

  15. Flank Collapse Assessment At Kick-'em-Jenny Submarine Volcano (Lesser Antilles): A Combined Approach Using Modelling and Experiments

    NASA Astrophysics Data System (ADS)

    Dondin, Frédéric; Heap, Michael; Robert, Richard E. A.; Dorville, Jean-Francois M.; Carey, Steven

    2016-04-01

    Volcanic landslides - the result of volcanic flank failure - are highly hazardous mass movements due to their high mobility, the wide area they can impact, and their potential to generate tsunamis. In the Lesser Antilles at least 53 episodes of flank collapse have been identified, with many of them associated with voluminous (Vdeposit exceeding 1 km3) submarine volcanic landslide deposits. The existence of such voluminous deposits highlights the hazard of potentially devastating tsunami waves to the populated islands of the Lesser Antilles. To help understand and mitigate such hazards, we applied a relative stability assessment method to the only active submarine volcano of the Lesser Antilles island arc: Kick-'em-Jenny (KeJ). KeJ - located 8 km north of the island of Grenada - is the southernmost edifice in the arc with recognized associated volcanic landslide deposits. From the three identified landslide prehistoric episodes, one is associated with a collapse volume of about 4.4 km3. Numerical simulations considering a single pulse collapse revealed that this episode would have produced a regional tsunami. A volume estimate of the present day edifice is about 1.5 km3. We aim to quantify potential initial volumes of collapsed material using relative instability analysis (RIA). The RIA evaluates the critical potential failure surface associated with factor of safety (Fs) inferior to 1 and compares them to areas of deficit/surplus of mass/volume obtained from the comparison of an high resolution digital elevation model of the edifice with an ideal 3D surface named Volcanoid. To do so we use freeware programs VolcanoFit 2.0 and SSAP 4.5. We report, for the first time, results of a Limit Equilibrium Method (Janbu's rigorous method) as a slope stability computation analysis performed using geomechanical parameters retrieved from rock mechanics tests performed on two rock basaltic-andesite rock samples collected from within the crater of the volcano during the 1

  16. U-series disequilibrium of basaltic rocks from Kick'em-Jenny submarine volcano, Lesser Antilles island arc

    NASA Astrophysics Data System (ADS)

    Huang, F.; Lundstrom, C. C.

    2005-12-01

    Kick'em Jenny (KEJ) submarine volcano located 9 km to the north of Grenada in the Lesser Antilles volcanic arc produces lavas ranging in composition from high MgO basalts to moderately evolved andesites. We have determined U-series disequilibria in 12 porphyritic lavas erupted from KEJ volcano by TIMS and MC-ICP-MS methods to constrain the timing and identify the processes creating the magma diversity observed. The SiO2 contents of samples studied here vary from 47 to 55 wt.% SiO2 while REE patterns evolve from slightly LREE enriched, MREE/HREE = 1 patterns to strongly LREE enriched, MREE depleted concave-up patterns. Separate dissolutions of sample KEJ100 indicate an external reproducibility (1s) of 0.7% for (230Th/238U) (n=4), 0.8% for (230Th/232Th) (n=4) and 0.6% for (226Ra/230Th) (n=3), respectively. For all sample, (234U/238U) lies within 0.7% of unity, suggesting that secondary alteration by seawater has not disturbed the U-series data significantly. Sample ages for these submarine erupted samples are unknown, resulting in uncertain values for initial (226Ra/230Th); however, 10 out of 12 of the measured (226Ra/230Th) range between 3.16 and 1.13 and are thus unequivocally young with respect to decay of 230Th and 231Pa since eruption. The U (0.535 - 4.876 ppm) and Th (1.25 - 10.78 ppm) concentrations increase with SiO2 contents. (230Th/232Th) has a restricted range, varying from 0.994 to 1.093 with the exception of one sample. (230Th/238U) ranges from 0.684 to 0.875 while (231Pa/235U) ranges from 1.76 up to 2.84, among the highest 231Pa excess in island arcs yet reported. These data confirm previous observations of the unusual behavior of KEJ lavas relative to global observations in having both large 238U and 231Pa excesses. Combined with (226Ra/230Th), these disequilibria observations require that 238U excesses reflect more than solely fluid addition to the mantle wedge from the subducted oceanic slab.

  17. Flank instability assessment at Kick-'em-Jenny submarine volcano (Grenada, Lesser Antilles): a multidisciplinary approach using experiments and modeling

    NASA Astrophysics Data System (ADS)

    Dondin, F. J.-Y.; Heap, M. J.; Robertson, R. E. A.; Dorville, J.-F. M.; Carey, S.

    2017-01-01

    Kick-'em-Jenny (KeJ)—located ca. 8 km north of the island of Grenada—is the only active submarine volcano of the Lesser Antilles Volcanic Arc. Previous investigations of KeJ revealed that it lies within a collapse scar inherited from a past flank instability episode. To assess the likelihood of future collapse, we employ here a combined laboratory and modeling approach. Lavas collected using a remotely operated vehicle (ROV) provided samples to perform the first rock physical property measurements for the materials comprising the KeJ edifice. Uniaxial and triaxial deformation experiments showed that the dominant failure mode within the edifice host rock is brittle. Edifice fractures (such as those at Champagne Vent) will therefore assist the outgassing of the nearby magma-filled conduit, favoring effusive behavior. These laboratory data were then used as input parameters in models of slope stability. First, relative slope stability analysis revealed that the SW to N sector of the volcano displays a deficit of mass/volume with respect to a volcanoid (ideal 3D surface). Slope stability analysis using a limit equilibrium method (LEM) showed that KeJ is currently stable, since all values of stability factor or factor of safety (Fs) are greater than unity. The lowest values of Fs were found for the SW-NW sector of the volcano (the sector displaying a mass/volume deficit). Although currently stable, KeJ may become unstable in the future. Instability (severe reductions in Fs) could result, for example, from overpressurization due to the growth of a cryptodome. Our modeling has shown that instability-induced flank collapse will most likely initiate from the SW-NW sector of KeJ, therefore mobilizing a volume of at least ca. 0.7 km3. The mobilization of ca. 0.7 km3 of material is certainly capable of generating a tsunami that poses a significant hazard to the southern islands of the West Indies.

  18. Establishment of conditions for ovum pick up and IVM of jennies oocytes toward the setting up of efficient IVF and in vitro embryos culture procedures in donkey (Equus asinus).

    PubMed

    Goudet, Ghylène; Douet, Cécile; Kaabouba-Escurier, Aurore; Couty, Isabelle; Moros-Nicolás, Carla; Barrière, Philippe; Blard, Thierry; Reigner, Fabrice; Deleuze, Stefan; Magistrini, Michèle

    2016-07-15

    Most wild and domestic donkey breeds are currently endangered or threatened. Their preservation includes the creation of a Genome Resource Bank. Embryos cryopreservation allows the preservation of genetics from both male and female and is the fastest method to restore a breed. Because embryo production in vivo is limited in equids, our objective was to establish conditions for in vitro production of embryos in donkey using ovum pick up (OPU), IVM, IVF, and in vitro culture of zygotes. Donkey cumulus-oocyte complexes (COCs) were collected by transvaginal ultrasound-guided aspirations OPU in adult cyclic jennies and in vitro matured in tissue culture medium 199 supplemented with fetal calf serum and epidermal growth factor for 24, 30, 34, or 38 hours. They were preincubated with oviductal fluid for 30 minutes, coincubated with frozen-thawed donkey semen treated with procaine for 18 hours, and cultured for 30 hours in Dulbecco's Modified Eagle Medium-F12 supplemented with NaHCO3, fetal calf serum, and gentamycin. From the five OPU sessions, we collected 92 COCs in 193 follicles (48%) with an average of 4.2 COCs per jenny. All COCs were expanded after more than 24-hour IVM. At collection, jennies oocytes contained a germinal vesicle. Metaphase 1 oocytes were observed after 30-hour IVM and 44% were in metaphase 2 after 34-hour IVM. In our conditions, IVM of donkey oocytes was slower than IVM of equine oocytes and optimal duration for donkey oocytes IVM may be 34 hours. Only 15% of jennies oocytes contained two pronuclei after coincubation with donkey spermatozoa and none of them developed further after 48 hours post-IVF. Moreover, some parthenogenetic activation occurred. Thus, the treatment of donkey sperm with procaine may not be efficient for IVF. In conclusion, we established for the first time conditions for OPU in jennies with high recovery rates. We reported that IVM of jennies oocytes can produce 44% of metaphase 2 oocytes after 34 hours in culture

  19. Tropical Storm Ernesto over Cuba

    NASA Technical Reports Server (NTRS)

    2006-01-01

    [figure removed for brevity, see original site] Microwave Image

    These infrared, microwave, and visible images were created with data retrieved by the Atmospheric Infrared Sounder (AIRS) on NASA's Aqua satellite.

    Infrared Image Because infrared radiation does not penetrate through clouds, AIRS infrared images show either the temperature of the cloud tops or the surface of the Earth in cloud-free regions. The lowest temperatures (in purple) are associated with high, cold cloud tops that make up the top of the storm. In cloud-free areas the AIRS instrument will receive the infrared radiation from the surface of the Earth, resulting in the warmest temperatures (orange/red).

    Microwave Image In the AIRS microwave imagery, deep blue areas in storms show where the most precipitation occurs, or where ice crystals are present in the convective cloud tops. Outside of these storm regions, deep blue areas may also occur over the sea surface due to its low radiation emissivity. On the other hand, land appears much warmer due to its high radiation emissivity.

    Microwave radiation from Earth's surface and lower atmosphere penetrates most clouds to a greater or lesser extent depending upon their water vapor, liquid water and ice content. Precipitation, and ice crystals found at the cloud tops where strong convection is taking place, act as barriers to microwave radiation. Because of this barrier effect, the AIRS microwave sensor detects only the radiation arising at or above their location in the atmospheric column. Where these barriers are not present, the microwave sensor detects radiation arising throughout the air column and down to the surface. Liquid surfaces (oceans, lakes and rivers) have 'low emissivity' (the signal isn't as strong) and their radiation brightness temperature is therefore low. Thus the ocean also appears 'low temperature' in the AIRS microwave images and is assigned the color blue. Therefore deep blue areas in storms show where the most precipitation occurs, or where ice crystals are present in the convective cloud tops. Outside of these storm regions, deep blue areas may also occur over the sea surface due to its low radiation emissivity. Land appears much warmer due to its high radiation emissivity.

    The Atmospheric Infrared Sounder Experiment, with its visible, infrared, and microwave detectors, provides a three-dimensional look at Earth's weather. Working in tandem, the three instruments can make simultaneous observations all the way down to the Earth's surface, even in the presence of heavy clouds. With more than 2,000 channels sensing different regions of the atmosphere, the system creates a global, 3-D map of atmospheric temperature and humidity and provides information on clouds, greenhouse gases, and many other atmospheric phenomena. The AIRS Infrared Sounder Experiment flies onboard NASA's Aqua spacecraft and is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., under contract to NASA. JPL is a division of the California Institute of Technology in Pasadena.

  20. Insights on volcanic behaviour from the 2015 July 23-24 T-phase signals generated by eruptions at Kick-'em-Jenny Submarine Volcano, Grenada, Lesser Antilles

    NASA Astrophysics Data System (ADS)

    Dondin, F. J. Y.; Latchman, J. L.; Robertson, R. E. A.; Lynch, L.; Stewart, R.; Smith, P.; Ramsingh, C.; Nath, N.; Ramsingh, H.; Ash, C.

    2015-12-01

    Kick-'em-Jenny volcano (KeJ) is the only known active submarine volcano in the Lesser Antilles Arc. Since 1939, the year it revealed itself, and until the volcano-seismic unrest of 2015 July 11-25 , the volcano has erupted 12 times. Only two eruptions breached the surface: 1939, 1974. The volcano has an average eruption cycle of about 10-11 years. Excluding the Montserrat, Soufrière Hills, KeJ is the most active volcano in the Lesser Antilles arc. The University of the West Indies, Seismic Research Centre (SRC) has been monitoring KeJ since 1953. On July 23 and 24 at 1:42 am and 0:02 am local time, respectively, the SRC recorded T-phase signals , considered to have been generated by KeJ. Both signals were recorded at seismic stations in and north of Grenada: SRC seismic stations as well as the French volcano observatories in Guadeloupe and Martinique, Montserrat Volcano Observatory, and the Puerto Rico Seismic Network. These distant recordings, along with the experience of similar observations in previous eruptions, allowed the SRC to confirm that two explosive eruptions occurred in this episode at KeJ. Up to two days after the second eruption, when aerial surveillance was done, there was no evidence of activity at the surface. During the instrumental era, eruptions of the KeJ have been identified from T-phases recorded at seismic stations from Trinidad, in the south, to Puerto Rico, in the north. In the 2015 July eruption episode, the seismic station in Trinidad did not record T-phases associated with the KeJ eruptions. In this study we compare the T-phase signals of 2015 July with those recorded in KeJ eruptions up to 1974 to explore possible causative features for the T-phase recording pattern in KeJ eruptions. In particular, we investigate the potential role played by the Sound Fixing and Ranging (SOFAR) layer in influencing the absence of the T-phase on the Trinidad seismic station during this eruption.

  1. Archive of Digital Boomer Seismic Reflection Data Collected During USGS Field Activity 02LCA02 in Lakes Ada, Crystal, Jennie, Mary, Rice, and Sylvan, Central Florida, July 2002

    USGS Publications Warehouse

    Harrison, Arnell S.; Dadisman, Shawn V.; Davis, Jeffrey B.; Wiese, Dana S.

    2008-01-01

    In July of 2002, the U.S. Geological Survey and St. Johns River Water Management District (SJRWMD) conducted geophysical surveys in Lakes Ada, Crystal, Jennie, Mary, Rice, and Sylvan, central Florida, as part of the USGS Lakes and Coastal Aquifers (LCA) study. This report serves as an archive of unprocessed digital boomer seismic reflection data, trackline maps, navigation files, Geographic Information System (GIS) files, and formal Federal Geographic Data Committee (FGDC) metadata. Filtered and gained (a relative increase in signal amplitude) digital images of the seismic profiles are also provided. Refer to the Acronyms page for expansions of acronyms and abbreviations used in this report. The archived trace data are in standard Society of Exploration Geophysicists (SEG) SEG-Y format (Barry and others, 1975) and may be downloaded and processed with commercial or public domain software such as Seismic Unix (SU). Example SU processing scripts and USGS software for viewing the SEG-Y files (Zihlman, 1992) are also provided. The USGS Florida Integrated Science Center (FISC) - St. Petersburg assigns a unique identifier to each cruise or field activity. For example, 02LCA02 tells us the data were collected in 2002 for the Lakes and Coastal Aquifers (LCA) study and the data were collected during the second field activity for that study in that calendar year. Refer to http://walrus.wr.usgs.gov/infobank/programs/html/definition/activity.html for a detailed description of the method used to assign the field activity ID. The boomer plate is an acoustic energy source that consists of capacitors charged to a high voltage and discharged through a transducer in the water. The transducer is towed on a sled floating on the water surface and when discharged emits a short acoustic pulse, or shot, which propagates through the water, sediment column, or rock beneath. The acoustic energy is reflected at density boundaries (such as the seafloor, sediment, or rock layers beneath the

  2. An Interview with Ernesto M. Bernal and Patricia Hays.

    ERIC Educational Resources Information Center

    Kirschenbaum, Robert J.

    1991-01-01

    This interview, with an administrator and an evaluator of the Summer Career Institute of Gifted Minority Students and Females held at Northern Arizona University in Flagstaff, addresses the topics of making career choices, prejudice of school personnel toward gifted minority students, identification procedures, cultural influences, and the role of…

  3. NASA JSC EV2 Intern Spring 2016 - Jennie Chung

    NASA Technical Reports Server (NTRS)

    Chung, Jennie

    2016-01-01

    Exploration Mission 2 (EM-2) is a mission to resume the manned exploration of the Solar System. This mission is the first crewed mission of NASA’s Orion on the Space Launch System. The target for EM-2 is to perform a flyby of a captured asteroid in lunar orbit, which NASA plans to launch in 2023. As an intern working with EV-2 – Avionics Systems Division in Johnson Space Center, we are developing flight instrumentation systems for EM-2 (MISL & RFID). The Modular Integrated Stackable Layer (MISL) is a compact space-related computer system that is modular, scalable and reconfigurable. The RFID (radio frequency identification) sensors are used to take lower frequency (TC) type measurements and be able to stream data real-time to an RF (radio frequency) interrogator upon demand. Our job, in EV-2, is to certify, test, manufacture/assemble and deliver flight EM-2 DFI System (MISL & RFID). Our goal is to propose a development effort to design low-mass wire and wireless data acquisition and sensor solutions for EM-2 DFI (Development Flight Instrumentation). The team is tasked to provide the most effective use of 75 pounds to acquire DFI data and to collect sensor data for 100-200 high priority DFI channels (mass driven).

  4. Why Else Does Jenny Run? Young Children's Extended Psychological Explanations

    ERIC Educational Resources Information Center

    Bartsch, Karen; Campbell, Michelle D.; Troseth, Georgene L.

    2007-01-01

    A method for eliciting extended explanations was used to evaluate predictions from the "theory-theory" account of developing psychological reasoning. Children were repeatedly asked to explain the actions or emotions of story characters with false beliefs. Questioning elicited false belief attributions in half of 3-year-olds (Study 1, N = 16, age M…

  5. Jimmy's Baby Doll and Jenny's Truck: Young Children's Reasoning about Gender Norms

    ERIC Educational Resources Information Center

    Conry-Murray, Clare; Turiel, Elliot

    2012-01-01

    To assess the flexibility of reasoning about gender, children ages 4, 6, and 8 years (N = 72) were interviewed about gender norms when different domains were highlighted. The majority of participants at all ages judged a reversal of gender norms in a different cultural context to be acceptable. They also judged gender norms as a matter of personal…

  6. Evaluation of E-Safety Materials for Initial Teacher Training: Can "Jenny's Story" Make a Difference?

    ERIC Educational Resources Information Center

    Woollard, John; Wickens, Cathy; Powell, Ken; Russell, Terry

    2009-01-01

    E-safety issues have come to the fore of thinking about young people's use of the internet because of their vulnerable position with regard to contact with people who may take advantage of them. The "Byron Review" in the UK makes explicit the steps that need to be taken to protect internet users. Based upon research across four United…

  7. The Theme of the Sightless Asexual as Seen in the Novels "Santa" by Federico Gamboa and "El tunel" by Ernesto Sabato

    ERIC Educational Resources Information Center

    Hunter, Robert A., Jr.

    2009-01-01

    The most cursory examination of literary depictions of the physically blind reveals a myriad of colorful, diverse and often odd characterizations. Portrayals of the sightless typically present them in roles overwhelmingly unflattering and flawed. In Federico Gamboa's "Santa," the blind piano player and coprotagonist, Hipolito, is cast as pathetic…

  8. Identifying and Using Picture Books with Quality Mathematical Content: Moving beyond "Counting on Frank" and "The Very Hungry Caterpillar"

    ERIC Educational Resources Information Center

    Marston, Jennie

    2014-01-01

    This article by Jennie Marston provides a framework to assist you in selecting appropriate picture books to present mathematical content. Jennie demonstrates the framework by applying three specific examples of picture books to the framework along with examples of activities.

  9. Sub-Saharan Africa Report.

    DTIC Science & Technology

    2007-11-02

    Joaquim Varela Rangel, Joao Manuel Martins, Joao Ernesto dos Santos, Jose Cesar Augusto Joao Ernesto Saraiva de Carvalho, Jose Teixeira de Matos...Moises Justine) Pedro de Castro van Dunem, Paulo Miguel Junior, Roberto Leal Ramos Monteiro Rui Guilherme Cardoso de Matos, Rafael Sapilinha

  10. Human CD1d-Restricted Natural Killer T (NKT) Cell Cytotoxicity Against Myeloid Cells

    DTIC Science & Technology

    2006-04-01

    Jason M. Keaton1, Faye Reddington2, Petr A. Illarionov2, Gurdyal S. Besra2, Jenny E. Gumperz1 1Department of Medical Microbiology and Immunology...Corresponding Author: Jenny E. Gumperz, Department of Medical Microbiology and Immunology, University of Wisconsin Medical School, 1300 University Ave., Madison

  11. Scaling up... : Professional Development to Serve Young Children in Chinese Welfare Institutions

    ERIC Educational Resources Information Center

    Edwards, Carolyn Pope; Cotton, Janice N.; Zhao, Wen; Muntaner-Gelabert, Jeronia

    2010-01-01

    In 1998 a group of American adoptive parents led by Jenny Bowen created Half the Sky Foundation (HTS) to provide nurturing care and education for children living in Chinese orphanages (known as children's welfare institutions). Jenny, a former screenwriter and film director, and her husband Richard wanted to ensure that the children still waiting…

  12. Revolutionary Leadership and Pedagogical Praxis: Revisiting the Legacy of Che Guevara.

    ERIC Educational Resources Information Center

    McLaren, Peter

    1999-01-01

    Describes pedagogical foundations of Ernesto "Che" Guevara's revolutionary praxis, situating Guevara within a redemptive educational leadership model. Articulates Guevarian leadership within a historical materialist framework; presents a leadership model that addresses resistance to and transformation of global capitalist social…

  13. United States National Security Interests and the Republic of Mexico.

    DTIC Science & Technology

    1983-06-01

    Ernesto Perez Mendoza , The Role of the Armed Forces in the Mexican Economy, in the 1980’s, Master’s Thesis, Naval Postgraduate School, 1981. 86 Peter H... Perez Mendoza , Vicente Ernesto, The Role of the Armed Forces In the Mexican Economy, in the 1980’s, Master’s Thesis, Naval Postgraduate School...reforms. Regardless of how temporary, Mexico is undergoing some very hard economic realities and social concerns. The revolution in El Salvador has

  14. Quantitative comparisons of analogue models of brittle wedge dynamics

    NASA Astrophysics Data System (ADS)

    Schreurs, Guido

    2010-05-01

    , models accommodated initial shortening by a forward- and a backward-verging thrust. Further shortening was taken up by in-sequence formation of forward-verging thrusts. In all experiments, boundary stresses created significant drag of structures along the sidewalls. We therefore compared the surface slope and the location, dip angle and spacing of thrusts in sections through the central part of the model. All models show very similar cross-sectional evolutions demonstrating reproducibility of first-order experimental observations. Nevertheless, there are significant along-strike variations of structures in map view highlighting the limits of interpretations of analogue model results. These variations may be related to the human factor, differences in model width and/or differences in laboratory temperature and especially humidity affecting the mechanical properties of the granular materials. GeoMod2008 Analogue Team: Susanne Buiter, Caroline Burberry, Jean-Paul Callot, Cristian Cavozzi, Mariano Cerca, Ernesto Cristallini, Alexander Cruden, Jian-Hong Chen, Leonardo Cruz, Jean-Marc Daniel, Victor H. Garcia, Caroline Gomes, Céline Grall, Cecilia Guzmán, Triyani Nur Hidayah, George Hilley, Chia-Yu Lu, Matthias Klinkmüller, Hemin Koyi, Jenny Macauley, Bertrand Maillot, Catherine Meriaux, Faramarz Nilfouroushan, Chang-Chih Pan, Daniel Pillot, Rodrigo Portillo, Matthias Rosenau, Wouter P. Schellart, Roy Schlische, Andy Take, Bruno Vendeville, Matteo Vettori, M. Vergnaud, Shih-Hsien Wang, Martha Withjack, Daniel Yagupsky, Yasuhiro Yamada

  15. 6. Main cabin, northwest "wing" with plank door and sliding ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Main cabin, northwest "wing" with plank door and sliding screen door; view to east. - M.T. & Jennie H. Deaton Property, Big Springs Summer Home Area, Lot 2, Block N, Island Park, Fremont County, ID

  16. 75 FR 65320 - Environmental Impact Statements; Notice of Availability

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ..., Comment Period Ends: 12/06/2010, Contact: Jennie Fischer 208-983-4048. EIS No. 20100412, Final Supplement...: Michael Jewell 916-557-6605. EIS No. 20100422, Third Final Supplement, FTA, 00, South Corridor...

  17. 77 FR 50085 - Marine Mammals; File No. 16160

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ... Permit No. 16160 has been issued to The Whale Museum (Responsible Party: Jenny Atkinson), PO Box 945... species (50 CFR parts 222-226). The permit has been amended to increase Southern Resident killer...

  18. Does the Current 20th Century Navy Personnel Management System Meet 21st Century Sailors’ Needs

    DTIC Science & Technology

    2003-04-01

    Hansen, Michael L., and Jennie W. Wenger 2002 Center for Naval Analyses, CRM D0005644.A2 Pay elasticity in different models describe the...requirements determination which placed manpower flow modeling in a preeminent position. Under the direction of Admiral James Hogg , head of the Navy’s...Source: Michael L. Hansen and Jennie W. Wenger, Why Do Pay Elasticity Estimates Differ? (Alexandria, VA: Center for Naval Analyses, CRM

  19. Census of U.S. Civil Aircraft for Calendar Year 1984.

    DTIC Science & Technology

    1984-12-31

    CLOUD DANCER JENNY 1 41 1 0 1 1 CLOUDBUSTER 1 41 1 0 1 1 CLOUDHAWK 1 41 1 0 1 1 CM-I 2 41 1 0 2 2 CMI 1 41 1 0 1 1 CM2GI-S 1 41 1 0 1 1 CO-Z 3 41 1 0 1...1 0 1 1 JEFFAIR BARRACUDA 2 41 1 0 1 1 JENNY CLOUDDANCER 1 41 1 0 1 1 JENNY JN-4O I 41 1 0 1 1 JENNY JN4D 1 41 1 0 1 " JGm-1 1 41 1 0 1 1 JH-1 1 41 1...1 1 "Ju-1 1 41 1 0 1 1 JM" 101 2 41 1 0 1 1 JN-4D JENNY REPLICA 2 41 1 0 1 1 JN-4H 2 41 1 0 1 1JND-1 1 41 1 0 1 1 JN4C-REPLICA 2 41 1 0 1 1 JN4CAN 2

  20. The Dokuchaev hypothesis as a basis for predictive digital soil mapping (on the 125th anniversary of its publication)

    NASA Astrophysics Data System (ADS)

    Florinsky, I. V.

    2012-04-01

    Predictive digital soil mapping is widely used in soil science. Its objective is the prediction of the spatial distribution of soil taxonomic units and quantitative soil properties via the analysis of spatially distributed quantitative characteristics of soil-forming factors. Western pedometrists stress the scientific priority and principal importance of Hans Jenny's book (1941) for the emergence and development of predictive soil mapping. In this paper, we demonstrate that Vasily Dokuchaev explicitly defined the central idea and statement of the problem of contemporary predictive soil mapping in the year 1886. Then, we reconstruct the history of the soil formation equation from 1899 to 1941. We argue that Jenny adopted the soil formation equation from Sergey Zakharov, who published it in a well-known fundamental textbook in 1927. It is encouraging that this issue was clarified in 2011, the anniversary year for publications of Dokuchaev and Jenny.

  1. Strategies to improve the fertility of fresh and frozen donkey semen.

    PubMed

    de Oliveira, José Victor; Oliveira, Pedro Victor de Luna Freire; Melo e Oña, Cely Marini; Guasti, Priscilla Nascimento; Monteiro, Gabriel Augusto; Sancler da Silva, Yamê Fabres Robaina; Papa, Patrícia de Mello; Alvarenga, Marco Antônio; Dell'Aqua Junior, Jose Antonio; Papa, Frederico Ozanam

    2016-04-15

    Fertility rates of donkey semen in jennies are lower compared to mares. The aims of this study were to evaluate different sperm cryopreservation methods and insemination strategies to improve the fertility of donkey semen in jennies. Three experiments were performed: (1) the comparison of two freezing methods of donkey semen (conventional method and automated method); (2) the determination of a suitable insemination dose of fresh donkey semen for jennies and mares; and (3) the influence of the semen deposition site on fertility of jennies inseminated with frozen donkey semen. For experiment 1, no differences were observed in total motility, angular velocity, curvilinear velocity, straight-line velocity, and plasma membrane integrity between samples frozen with the conventional (Styrofoam box) and the automated method (TK 4000C). However, the automated method provided higher values of progressive motility and rapid cells in frozen-thawed samples in comparison with the conventional method (P < 0.05). For experiment 2, mares were bred using 500 × 10(6) fresh sperm (M); and jennies using 1 × 10(9) (J1) or 500 × 10(6) fresh sperm (J5). Pregnancy rates in M, J1, and J5 were 93% (14/15), 73% (11/15), and 40% (6/15), respectively. When using different insemination doses, 500 × 10(6) or 1 × 10(9) sperm, no significant difference was observed in pregnancy rates of mares (M, 14/15) and jennies (J1, 11/15). Furthermore, there was no significant difference between the two insemination doses in jennies. However, with an insemination dose of 500 × 10(6) fresh sperm, the pregnancy rates were significantly higher in mares (M, 14/15) than in jennies (J5, 6/15; P < 0.05). For experiment 3, the inseminations were carried out in the uterine body (UB) or in the uterine horn of jennies with frozen-thawed donkey semen. No pregnancies were achieved with inseminations performed in the UB (0/12). The pregnancy rate for uterine horn group was 28.26% (13/46) and thus

  2. Becoming a Coach in Developmental Adaptive Sailing: A Lifelong Learning Perspective

    PubMed Central

    Duarte, Tiago; Culver, Diane M.

    2014-01-01

    Life-story methodology and innovative methods were used to explore the process of becoming a developmental adaptive sailing coach. Jarvis's (2009) lifelong learning theory framed the thematic analysis. The findings revealed that the coach, Jenny, was exposed from a young age to collaborative environments. Social interactions with others such as mentors, colleagues, and athletes made major contributions to her coaching knowledge. As Jenny was exposed to a mixture of challenges and learning situations, she advanced from recreational para-swimming instructor to developmental adaptive sailing coach. The conclusions inform future research in disability sport coaching, coach education, and applied sport psychology. PMID:25210408

  3. Census of U.S. Civil Aircraft, Calendar Year 1980.

    DTIC Science & Technology

    1980-12-31

    JENNY JN-4H 2 41 HISPANO I ISO 1 1 JN4CAN 2 41 UNKNOWN 1 0 1 1 CM-1 2 41 FRANKLIN 1 60 1 1 JN-4D JENNY REPLICA 2 41 FAIRCHILD 1 200 1 1 CURTIS WRIGHT...270 105 87 18 11 3 2 1 9 34 Jim Hogg 7 3 1 ŕ 1 1 Jim Wells 79 26 33 2 4 3. 1 10 Johnson 107 47 48 6 1 3 2 Jones 30 20 9 1 Karnes 31 8 9 3 1 1 9

  4. Fundamentals and Methods of High Angle-of-Attack Flying Qualities Research

    DTIC Science & Technology

    1988-01-01

    the a-, versus oxt criterion orginally developed by Jenny of McDonnell Aircraft Company (McAir) (1971) (see Reference (115) and (2)). The more recent...equations of motion. Other forms of this criteron are also found in the literature such as the a-, versus "b der ,rture criterion ( Jenny ). The C, R criterion...Dynamics." Journal of the Aeronautical Sciences, Vol. 21, No. 11, November 1954, pp. 749-762. 122. Johnston, D.E. and Hogge , J.R., "The Effects of Non

  5. Supplement to the Proceedings of the Annual Symposium on Frequency Control (42nd) Held in Baltimore, Maryland on 1-3 June 1988. Subject and Author Index for the Proceedings for the 10th to 42nd Symposia on Frequency Control and Symposium Historical Information, 1946-1988

    DTIC Science & Technology

    1988-01-01

    Bernstein, I Clarence E. Searles, G.K. Guttwein, F.H. Reder Ruth C. Jenny 1958 Eduard A. Gerber I Jerome M. Havel Arrangements: I Clarence E. Searles, I Ruth...C. Jenny Facilities: I Millard F. Timm 1959 Eduard A. Gerber I Jerome M. Havel Arrangements: I Clarence E. Searles I Facilities: I Millard F. Timm...1960 Eduard A. Gerber I Jerome M. Havel Arrangements: I Clarence E. Searles I Facilities: I Millard F. Timm 1961 Eduard A. Gerber I Jerome M. Havel I

  6. 76 FR 44956 - Notice of Lodging Proposed Consent Decree

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-27

    ... States' claims against Gregory D. Bee in United States v. Hertrich, et al., Case No. 1:10-cv-03068-JKB... Frederick W. Hertrich, III, Charles Ernesto, and Gregory D. Bee, pursuant to 33 U.S.C. 1319(b) and (d), to... Consent Decree resolves allegations against Gregory D. Bee by requiring him to pay a civil penalty....

  7. Writing "Che" Writing: Apocryphal Diaries and the Deconstruction of Guevara's Myth

    ERIC Educational Resources Information Center

    Weiser, Frans

    2013-01-01

    Ernesto "Che" Guevara's iconic photograph has taken on mythical proportions since his death. Though his image has ironically been exploited by the apparatus of capitalism against which he fought, his translation into a symbol has assured that his foothold within popular culture remains largely unassailable. While recent films and…

  8. 76 FR 71584 - Notice of Revocation of Customs Broker Licenses

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-18

    ... Brenda Sue 12207 Cleveland Conde Alicia C 22534 Cleveland Kirsch Elizabeth 20223 Cleveland Westrick Janet... Ltd Alberto Diaz 22433 Laredo Brittain International, Inc 07873 Laredo Hernandez Ernesto 12083 Laredo... Angeles Ziobro Eugene W 17429 Miami Hernandez Marta C 20214 Miami Torres Luis E 16599 Miami...

  9. Social Justice and Dispositions for Adult Education

    ERIC Educational Resources Information Center

    Holst, John D.

    2010-01-01

    The article identifies dispositions from a thematic investigation of the pedagogical practice of Ernesto Che Guevara and various social movements in the United States. The article outlines and places these dispositions within the context of debates over social justice and dispositions for education program accreditation in the United States that…

  10. Predicting Gene-Disease Associations Using Multiple Species Data

    DTIC Science & Technology

    2011-10-20

    regulatory networks from only positive and unlabeled data. BMC Bioinformatics, 11, 2010. [4] Ernesto Estrada and Desmond J. Higham. Network properties revealed...David Warde-Farley, Chris Grouios, and Quaid Morris . GeneMANIA: a real-time multiple association network integration algorithm for predicting gene

  11. Proyecto Principal de Educacion en America Latina y el Caribe. Boletin 16 (Main Project for Education in Latin America and the Caribbean. Bulletin 16).

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Santiago (Chile). Regional Office for Education in Latin America and the Caribbean.

    The three articles in this bulletin address various education problems in Latin America. Ernesto Schiefelbein ("Seven Strategies for Raising the Quality and Efficiency of the Education System") proposes seven educational strategies to confront existing problems, limitations, and the failure to retain students with few socioeconomic…

  12. Views on Identification.

    ERIC Educational Resources Information Center

    CAG Communicator, 1990

    1990-01-01

    The articles in this issue consider key issues in the selection of populations for gifted education program services. Titles and authors of articles include: "The Identification Blues and How to Cure Them" (Ernesto Bernal); "Recognizing Giftedness in Your Child" (Linda Kreger Silverman); "Instructional Grouping, GATE and Honors Classes" (Bill…

  13. Empty Signifiers, Education and Politics

    ERIC Educational Resources Information Center

    Szkudlarek, Tomasz

    2007-01-01

    The paper assumes that education is part of the process of discursive construction of society. The theoretical framework on which this argument is based includes Ernesto Laclau's theory of the "ontological impossibility and political necessity of society", and the role discourse and empty signifiers play in the establishment of political…

  14. Semiotics of Identity: Politics and Education

    ERIC Educational Resources Information Center

    Szkudlarek, Tomasz

    2011-01-01

    In this text I concentrate on semiotic aspects of the theory of political identity in the work of Ernesto Laclau, and especially on the connection between metaphors, metonymies, catachreses and synecdoches. Those tropes are of ontological status, and therefore they are of key importance in understanding the discursive "production" of…

  15. Rejoinder--Postmodernism and the Eclipse of Political Agency: A Response to Spencer Maxcy.

    ERIC Educational Resources Information Center

    McLaren, Peter

    1999-01-01

    Criticizes Maxcy's failure to understand Ernesto "Che" Guevara's reconstruction as an exemplary postmodern educational leader. The author presented a leadership model providing dialectical critique and an attentiveness to political economy. Postmodernism overlooks the significance of Guevara's efforts to resist global capitalist…

  16. Travel as a Ritual toward Transformative Consciousness: Juxtaposing Che Guevara's Biography and Teacher Candidates' Narratives

    ERIC Educational Resources Information Center

    Lea, YiShan

    2013-01-01

    This article discusses the development of critical consciousness by examining the biographical-narratives in relationship to the experiential accounts on travel. Biographical narratives are important cultural texts filled with history and cultural nuances. The biography of Ernesto Che Guevara has resonated with readers and viewers from around the…

  17. The Major Project of Education in Latin America and the Caribbean: Bulletin 37.

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Santiago (Chile). Regional Office for Education in Latin America and the Caribbean.

    This bulletin reports on educational reform efforts in specific Latin American countries and calls for policy makers to utilize research findings on education in their decision. Five articles are included: (1) "Education Reform in Latin America and the Caribbean: An Agenda for Action" (Ernesto Schiefelbein); (2) "Uruguayan High…

  18. New Forms of Stolz-Cesaro Lemma

    ERIC Educational Resources Information Center

    Mortici, Cristinel

    2011-01-01

    The well-known Stolz-Cesaro lemma is due to the mathematicians Ernesto Cesaro (1859-1906) and Otto Stolz (1842-1905). The aim of this article is to give new forms of Stolz-Cesaro lemma involving the limit [image omitted].

  19. What's Happening in November?

    ERIC Educational Resources Information Center

    Toro, Leonor; And Others

    A resource booklet for teachers contains material for a number of classroom activities that emphasize the month of November. Brief life stories of three notable men (Daniel Boone, Ernesto J. Fonfrias, and Andrew Carnegie) who were born in November are given, as well as lists of five United States presidents with November birthdates and five states…

  20. The Multiculturalism Caveat: A Pedagogy of the Politics of Difference

    ERIC Educational Resources Information Center

    Chueh, Ho-Chia

    2005-01-01

    Iris M. Young, Chantal Mouffe, and Ernesto Laclau are known for their political perspective on the politics of difference. The politics of difference concerns the fundamental question of political subjectivity. They argue against the essentialist belief that there is a fixed identity, instead promote the celebration of multiple and diverse values…

  1. Presenting the Iterative Curriculum Discourse Analysis (ICDA) Approach

    ERIC Educational Resources Information Center

    Iversen, Lars Laird

    2014-01-01

    The article presents a method for analysing recurring curriculum documents using discourse theory inspired by Ernesto Laclau and Chantal Mouffe. The article includes a presentation of the method in seven practical steps, and is illustrated and discussed throughout using the author's recent case study on religion, identity and values in Norwegian…

  2. Risk Bounds for Regularized Least-Squares Algorithm with Operator-Value Kernels

    DTIC Science & Technology

    2005-05-16

    for regularized least-squares algorithm with operator-valued kernels Ernesto De Vito a Andrea Caponnetto b aDipartimento di Matematica , Università...0915, National Science Foundation (ITR/SYS) Contract No. IIS - 0112991, National Science Foundation (ITR) Contract No. IIS -0209289, National Science

  3. 78 FR 66684 - Atlantic Highly Migratory Species; Advisory Panel

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-06

    ... are no Academic terms expiring, so no nominations for that sector will be considered at this time... comments and views of the HMS AP when preparing and implementing Fishery Management Plans (FMPs) or FMP...: ``HMS AP Nominations.'' Mail: Jenni Wallace, Highly Migratory Species Management Division, NMFS,...

  4. The United States Air Force Academy: A Bibliography, 2006-2010

    DTIC Science & Technology

    2011-01-01

    Bluesuiter-Turned- NBA Champion Re- Visits Campus." Checkpoints 35.3 (December 2006): 92-93. 311. Bandi, Jenny (C1C). "Embracing Learning." USAFA...Press, 2006. (UB 210 .V38 2006) PERIODICAL ARTICLES 816. Amann, Wayne. "’Pop’ Remembers His Cadet Roots: Bluesuiter-Turned- NBA Champion Re

  5. College Readiness for All: The Challenge for Urban High Schools

    ERIC Educational Resources Information Center

    Roderick, Melissa; Nagaoka, Jenny; Coca, Vanessa

    2009-01-01

    Melissa Roderick, Jenny Nagaoka, and Vanessa Coca focus on the importance of improving college access and readiness for low-income and minority students in urban high schools. They stress the aspirations-attainment gap: although the college aspirations of all U.S. high school students, regardless of race, ethnicity, and family income, have…

  6. The Constitution by Cell

    ERIC Educational Resources Information Center

    Greenhut, Stephanie; Jones, Megan

    2010-01-01

    On their visit to the National Archives Experience in Washington, D.C., students in Jenni Ashley and Gay Brock's U.S. history classes at the Potomac School in McLean, Virginia, participated in a pilot program called "The Constitution by Cell." Armed with their cell phones, a basic understanding of the Constitution, and a willingness to…

  7. Wordplay: The Poem's Second Language

    ERIC Educational Resources Information Center

    Figgins, Margo A.; Johnson, Jenny

    2007-01-01

    Students' relationships with language are likely to change when they are permitted to play with it, but teachers must construct multiple classroom situations for experimentation, and thus change, to take place. Margo A. Figgins and Jenny Johnson give several ideas for how to foster wordplay among students, describing use of eponyms, word…

  8. Shopping for Mathematics in Consumer Town

    ERIC Educational Resources Information Center

    Wolff, Ann L.; Wimer, Nancy

    2009-01-01

    Justin and Jenny, grade 12 math students, walk with their preschool friends Sean and Meg to the local grocery store. There, two classmates are tending the cash registers. The six of them, along with others, are participating in an in-school "field trip" to Consumer Town, located in the South Windsor High School front lobby. The field…

  9. A Study of Topic and Topic Change in Conversational Threads

    DTIC Science & Technology

    2009-09-01

    4 and = 6 (LDA Topics = 50). Vertical lines show identified topic transitions. Personally identifying terms are grayed out for privacy purposes...50). Personally identifying terms are grayed out for privacy purposes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 5.4...Matt, thank you for being a generous mentor and wonderful friend. To Marco Draeger, Jenny Tam , Jon Durham, and the rest of the NLP lab, thanks for

  10. Untracking Advocates Make Incredible Claims.

    ERIC Educational Resources Information Center

    Scott, Ralph

    1993-01-01

    According to Scott, educators have uncritically accepted tracking as harmful, although little empirical proof has been presented. Jennie Oakes retorts that research evidence on untracking abounds. Anne Wheelock insists that students learn more with untracking. Barbara N. Pavan cites research on effective schools and nongraded schools showing that…

  11. The Integration of Minorities into Special Operations: How Cultural Diversity Enhances Operations

    DTIC Science & Technology

    2014-03-01

    the Navy’s approach is to diversify the force is to make it look like the nation it represents, it will only see itself chasing numbers and fail to...Apriel K. Hodari, Martha Farnsworth Riche, and Jennie W. Wenger, The Impact of Diversity on Air Force Mission Performance: Analysis of Deployed

  12. Women, Literacy and Action: A Handbook.

    ERIC Educational Resources Information Center

    Breen, Mary, Ed.

    This handbook, to be used in literacy instruction programs, particularly with women, contains six articles concerning women and literacy written by women in Ontario. The articles are the following: "Feminism and Literacy" (Naomi Garber, Jenny Horsman, and Tracy Westell); "Looking at 'Ism's': Visible Minority Women and Literacy"…

  13. Gross anatomy of the female genital organs of the domestic donkey (Equus asinus Linné, 1758).

    PubMed

    Renner-Martin, T F P; Forstenpointner, G; Weissengruber, G E; Eberhardt, L

    2009-04-01

    Although donkeys play an important role as companion or pack and draught animals, theriogenological studies and anatomical data on the genital organs of the jenny are sparse. To provide anatomical descriptions and morphometric data, the organa genitalia feminina, their arteries and the ligamentum latum uteri of 10 adult but maiden jennies were examined by means of gross anatomical and morphometric techniques. In comparison with anatomical data of horses obtained from literature the genital organs of jennies appear to be more voluminous in relation to the body mass and the position of the ovaries is slightly further cranial than in mares. In asses, the ovaries contain large follicles reaching a diameter of up to 40 mm. The mesosalpinx is much wider than in the horse forming a considerably spacious bursa ovarica. The asinine ligamentum teres uteri reveals a very prominent cranial end, the 'appendix'. Tortuous mucosal folds occur in the wall of the jenny's cervical channel. The vascularization of the female genital organs of asses is very similar to that of horses. One of the examined specimens reveals a large mucosal fold dividing the cranial part of the vagina into a left and right compartment.

  14. A School District Responds to a Book Challenge

    ERIC Educational Resources Information Center

    Urzillo, Robert

    2007-01-01

    This article explains the response of a school district to a parental attempt to ban a book or label it as unsuitable for middle school students. Labeling, for the purpose of definition, is giving a book a label similar to one used in the movie industry. The challenged book is entitled "Sex Education;" it is a novel authored by Jenny Davis. From…

  15. How the Montessori Upper Elementary and Adolescent Environment Naturally Integrates Science, Mathematics, Technology, and the Environment

    ERIC Educational Resources Information Center

    McNamara, John

    2016-01-01

    John McNamara shares his wisdom and humbly credits Camillo Grazzini, Jenny Höglund, and David Kahn for his growth in Montessori. Recognizing more than what he has learned from his mentors, he shares the lessons he has learned from his students themselves. Math, science, history, and language are so integrated in the curriculum that students…

  16. The Idea Generator: Lori Bell--Mid-Illinois Talking Book Center, East Peoria

    ERIC Educational Resources Information Center

    Library Journal, 2004

    2004-01-01

    Anyone who hires Loft Bell is getting two librarians: one who enthusiastically does the job, and another who develops new ideas, secures grants to fund them, and swiftly puts the ideas into action. There's nothing that makes a job more attractive to Bell than the freedom to try out new things. Jenny Levine, Internet development specialist at…

  17. Ethnography and Language in Educational Settings.

    ERIC Educational Resources Information Center

    Green, Judith L., Ed.; Wallat, Cynthia, Ed.

    This compilation includes the following essays: (1) "Conversational Inference and Classroom Learning" (John J. Gumperz); (2) "Persuasive Talk--The Social Organization of Children's Talk" (Jenny Cook-Gumperz); (3) "Ethnography--The Holistic Approach to Understanding Schooling" (Frank W. Lutz); (4) "Triangulated Inquiry--A Methodology for the…

  18. Engaging & Challenging Gifted Students: Tips for Supporting Extraordinary Minds in Your Classroom (ASCD Arias)

    ERIC Educational Resources Information Center

    Rankin, Jenny Grant

    2016-01-01

    Though nearly 5 million students can be characterized as gifted and talented in the United States, many exceptional learners "fly under the radar." Because they are not appropriately challenged in the general classroom, they never meet their full potential--in school or in life. Author Jenny Grant Rankin equips general classroom teachers…

  19. Socio-Psycholinguistic Assessment of Early Writing Development.

    ERIC Educational Resources Information Center

    Traw, Rick

    A one-year qualitative study examined the ways in which two at-risk beginning readers and writers developed in a classroom where teaching strategies most commonly identified with whole language were used. The students, 6-year-old "Josh" and 7-year-old "Jenny," were enrolled in a transitional class composed of students who had…

  20. Multiply Math Skills with Literature. Literature Letter.

    ERIC Educational Resources Information Center

    Stoodt, Barbara D.

    1995-01-01

    This column discusses five children's books selected to develop math concepts involving problem solving, reasoning, and communication. The books are "Only One" (Marc Harshman); "The Librarian Who Measured the Earth" (Kathryn Lasky); "Counting Jennie" (Helena C. Pittman); "The Search for Delicious" (Natalie Babbitt); and "The Toothpaste…

  1. Best Practices for High School Classrooms: What Award-Winning Secondary Teachers Do.

    ERIC Educational Resources Information Center

    Stone, Randi

    This book provides guidance on high-impact teaching practices, offering first-hand accounts of award-winning teachers. Nine chapters include: (1) "Award-Winning Words of Wisdom," with topics: "High School Teaching Tips" (Jenny W. Holmstrom); "What Is a Good Teacher?" (Carey Jenkins); "Student Creativity"…

  2. Marine Corps Recruits: A Historical Look at Accessions and Bootcamp Performance

    DTIC Science & Technology

    2010-09-01

    D0011092.A2/Final) Hattiangadi, Anita. Private-Sector Benefit Offerings in the Competition for High-Skill Recruits, Dec 2001 (CNA Research Memorandum...Jennie, and Apriel Hodari. Final Analysis of Evaluation of Homeschool and ChalleNGe Program Recruits, Jul 2004 (CNA Research Memorandum D0009351.A4/1REV

  3. The Link: Connecting Juvenile Justice and Child Welfare. Volume 7, Number 1, Summer 2008

    ERIC Educational Resources Information Center

    Williams, Meghan, Ed.; Price, Jennifer M., Ed.

    2008-01-01

    This issue of "The Link" newsletter contains the following articles: (1) Convention on the Rights of the Child and Juvenile Justice (Jenni Gainborough and Elisabeth Lean); and (2) ABA (American Bar Association) Policy and Report on Crossover and Dual Jurisdiction Youth. Director's Message, Policy Update information and News/Resources are…

  4. Studies in Teaching: 2008 Research Digest

    ERIC Educational Resources Information Center

    McCoy, Leah P., Ed.

    2008-01-01

    Proceedings of Annual Research Forum. 34 studies. Cultural Awareness in Secondary Spanish (Amy Allen), Writing in Mathematics (Lindsey L. Bakewell), Homework: Assignment Methods and Student Engagement (Lia Beresford), Current Events and Social Studies (Jennie Marie Biser), Authentic Assessments in Social Studies (Carl Boland), Assessment in High…

  5. Therapeutic Uses of Music with Older Adults. Second Edition

    ERIC Educational Resources Information Center

    Clair, Alicia Ann; Memmott, Jenny

    2008-01-01

    In this comprehensively updated second edition, written by Alicia Ann Clair and Jenny Memmott the extraordinary benefits of music therapy for older adults are detailed. "Therapeutic Uses of Music with Older Adults" not only examines these benefits but also clarifies the reasons that music is beneficial. This important book shows both informal and…

  6. 77 FR 50750 - Self-Regulatory Organizations; NYSE Amex LLC; Notice of Filing of Amendment No. 1 and Order...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ..., 2012 (``Andrie Letter''); and Jenny Klebes Golding, Senior Attorney, Legal Division, Chicago Board... noting, in its approval of the elimination of position and exercise limits with respect to SPX index... proposal, but suggested that a reporting requirement would be useful should position and exercise limits...

  7. 76 FR 63904 - Proposed Information Collection; Comment Request; Coral Reef Conservation Program Administration

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-14

    ... National Oceanic and Atmospheric Administration Proposed Information Collection; Comment Request; Coral..., extension 150, or Jenny.Waddell@noaagov. SUPPLEMENTARY INFORMATION: I. Abstract The Coral Reef Conservation Act of 2000 (Act) was enacted to provide a framework for conserving coral reefs. The Coral...

  8. Study of Enlistment Test Scores and Other Attrition Factors from the Navy’s Delayed Entry Program

    DTIC Science & Technology

    2009-03-01

    Wegner and April K. Hodari, Final Analysis of Evaluation of Homeschool and ChalleNGe Program Recruits (Alexandria, VA: The CNA Corporation, 2004), 48...Sciences, 1981. Wegner, Jennie W. and April K. Hodari. Final Analysis of Evaluation of Homeschool and ChalleNGe Program Recruits. Alexandria, VA

  9. Gladiolus plants transformed with single-chain variable fragment antibodies to Cucumber mosaic virus

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Transgenic plants of Gladiolus ‘Peter Pears’ or ‘Jenny Lee’ were developed that contain single-chain variable fragments (scFv) to Cucumber mosaic virus (CMV) subgroup I or II. The CMV subgroup I heavy and light chain scFv fragments were placed under control of either the duplicated CaMV 35S or suga...

  10. The Double Bind for Women: Exploring the Gendered Nature of Turnaround Leadership in a Principal Preparation Program

    ERIC Educational Resources Information Center

    Weiner, Jennie Miles; Burton, Laura J.

    2016-01-01

    In this study of nine participants in a turnaround principal preparation program, Jennie Miles Weiner and Laura J. Burton explore how gender role identity shaped participants' views of effective principal leadership and their place within it. The authors find that although female and male participants initially framed effective leadership…

  11. Occasional Papers in Open and Distance Learning, No. 22.

    ERIC Educational Resources Information Center

    Donnan, Peter, Ed.

    1997-01-01

    The first paper in this issue, "Towards a Re-examination of Learning and Teaching at Charles Sturt University" (Perry Share, Mark Farrell, Erica Smith, Jenni Brackenreg, Lesley Ballantyne, Lisa Fawkes, Michelle Dean, Mark McFadden, and Judith Parker) is a major discussion paper by a Working Party of Academic Senate at Charles Sturt…

  12. Aging and Cerebral Palsy.

    ERIC Educational Resources Information Center

    Networker, 1993

    1993-01-01

    This special edition of "The Networker" contains several articles focusing on aging and cerebral palsy (CP). "Aging and Cerebral Palsy: Pathways to Successful Aging" (Jenny C. Overeynder) reports on the National Invitational Colloquium on Aging and Cerebral Palsy held in April 1993. "Observations from an Observer" (Kathleen K. Barrett) describes…

  13. Annual Report of the Assembly of Mathematical and Physical Sciences for Calendar Year 1978 (January 1, 1978 - December 31, 1978).

    DTIC Science & Technology

    1978-01-01

    astronomy) (Oceanography) .. .... I 1 157 David C. Hogg (1980) John W. Findlay, John P. Hagen, and Environmental Radiometry Gart Westerhout Department of...of Illinois and Information Science (Electrical engineering) University of California at San Diego Daniel G. Dow (1981) David C. Hogg (1979) Applied...Engineering University of Virginia The Technological Institute (Crystallography) Northwestern University (Materials science, crystallography) Jenny P

  14. Census of U.S. Civil Aircraft for Calendar Year 1983.

    DTIC Science & Technology

    1983-12-31

    3 69 51 2 0 2 2 69 51 2 0 5 5 69 51 2 0 3 3 2 41 1 0 1 1 1 41 1 0 1 1 % JENNY 2 41 1 0 1 1 ENG REC. ENO 41 1 212 213 ":’ LTI REC. ENG 51 8 48 52 OTAL 7...34" " JEENIE TEENIE 1 41 1 0 1 1 • JEENIES TEENIE 1 41 1 0 1 1 JEFFAIR BARRACUDA 2 41 1 0 1 1 JENNY JN-4D 1 41 1 0 1 1 JENNY JN4D 1 41 1 0 1 1 JGM-1 1...1-- UN-4D JENNY REPLICA 2 41 1 0 1 1 UN-4H 2 41 1 0 1 1 UND-1 1 41 1 0 1 1 UN4C-REPLICA 2 41 1 0 1 1 JN4CAN 2 41 I 0 1 1 JODEL D-l 2 41 1 0 2 2 JODEL

  15. Breast Cancer Center Support Grant

    DTIC Science & Technology

    1999-09-01

    Freedman M, Steiler Artz D, Hogge J, Zuurbier RA, Jafroudi H, Lo S-CB, Mun SK. An ROC Study of Screen Film Mammography and Storage Phosphor Digital...began to recruit patients in July. Six patients have received the treatment. Wenchi and Jenny Crawford (the research nurse) will check and make sure

  16. Global Governance: The Role of States and International Organizations

    DTIC Science & Technology

    2003-10-01

    Dempsey, Gary. Fool’s Errands: America’s Recent Encounters with Nation Building. Washington: CATO, 2001. (E 885 .0462001) Edkins, Jenny , Nalini...34 Foreign Policy 128 (Jan.-Feb. 2002): 24-36. "The Health of Nations; International Aid." Economist 361.8253 (22 Dec. 2001): 83-84. Hogg , Robert Cahn

  17. Heat Transfer Near the Entrance to a Film Cooling Hole in a Gas Turbine Blade

    DTIC Science & Technology

    1989-01-01

    Fluent; Dr. Simon Hogg for describing the internal workings of CFD codes; Ken Dunford for solving various computer problems; Esther Rose for tracking down...invaluable. I benefitted greatly from technical discussions with Rob Davenport, Chris Graham, Bill Pierce, Dave Bryant, Sarah Ashton, Dave Hicklin, and Jenny

  18. Journal of the British Ship Research Association. Index to Volume 34, January to December 1979. Abstracts Number 49, 883-52, 042.

    DTIC Science & Technology

    1979-01-01

    HOGG , w.A.G. 50442 HOGSTROM, H. 51655HOGSTRM, H.50260 HOLAND, I. 51800 HOLBROOK, R.P. 51483 HOLBROOK, S.J. 514 HOLDEN, K.O. 51264 HOLLRIGL, A...JEDRZEJOWICZ, P. 50533 JEFFERIS, T. 50516 JEFFREY, D.C. 50768 JELLARD, P. 50038 JENKINS, D. 51590 JENKINS, J.F. . 52007 JENNY , W. 551313 JENS

  19. Youth Studies Bulletin. Vol. 3 No. 4.

    ERIC Educational Resources Information Center

    Anderson, D. S., Ed.; Blakers, C., Ed.

    1984-01-01

    This quarterly publication contains 13 articles covering various aspects of education and youth employment in Australia. "Youth Employment Strategies: Public Service of South Australia" (Jenny Rhodes) describes opportunities for South Australian youth to enter public service. "School Influences on Retention in Victorian Government…

  20. Women Who Made a Difference.

    ERIC Educational Resources Information Center

    Crowe-Carraco, Carol

    This book, printed for new adult readers, is a series of nine brief biographies of famous Kentucky women. The book is printed in large easy-to-read type at an intermediate reading level. The material focuses on Kentucky women who lived during the 19th and early 20th centuries. The subjects include the following: Jenny Wiley (1760-1831), a pioneer…

  1. Oral History Interview Transcripts Tombigbee Historic Townsites Project. Volume 5 (Interview Numbers 123-128).

    DTIC Science & Technology

    1981-01-01

    Of STANDARDS-1963-A AL HISTORY INTERVIEW TRANSCR TOMBIGBEE HISTOMRIC TOWNSITES PROJECT AD ,Id4 3 5 Volume 5 (Interview Numbers 123 -128) Compiled by...HISTORY INTERVIEW TRANSCRIPTS TOMBIGBEE HISTORIC TOWNSITES PROJECT Volume 5 (Interview Nos. 123 -128) Compiled byJames N. McClurken and Peggy Uland...OH 123 Robert Adair. .. ......... ............. 761 OH 124 Jennie Mae Lenioir. .. ................... 788 OH 125

  2. Addressing the Needs of Students with Color Vision Deficiencies in the Elementary School Library

    ERIC Educational Resources Information Center

    Collins, Karla Bame

    2013-01-01

    Color vision deficiencies affect approximately eight percent of the male population (Birch & Chisholm, 2008; Cole, 2007; Jenny & Kelso, 2007; Neitz & Neitz, 2000), yet the condition is often overlooked in the educational setting despite the pervasiveness of color in the school (Suero et al., 2004). The purpose of this study was to…

  3. Key Elements in Successful Training A Comparative Study of Two Workplaces. Project Report, 2000-2001.

    ERIC Educational Resources Information Center

    Adult Literacy and Numeracy Australian Research Consortium, Alice Springs. Northern Territory Centre.

    This publication presents case studies of two sites--one with and one without a history of involvement in Workplace English Language and Literacy (WELL)-funded training programs. Case study 1, "Partnership, Flexibility, and Experience: Key Elements in Successful Training" (Jenny McGuirk), investigates a food processing company in New South Wales…

  4. Unseen Workers in the Academic Factory: Perceptions of Neoracism among International Postdocs in the United States and the United Kingdom

    ERIC Educational Resources Information Center

    Cantwell, Brendan; Lee, Jenny J.

    2010-01-01

    In this article, Brendan Cantwell and Jenny J. Lee examine the experiences of international postdocs and their varying career paths in the current political economy of academic capitalism through the lens of neoracism. Using in-depth interviews with science and engineering faculty and international postdocs in the United States and the United…

  5. 77 FR 59029 - Self-Regulatory Organizations; Chicago Board Options Exchange, Incorporated; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-25

    ..., Commission, from: Christopher Nagy, President, KOR Trading LLC, dated August 17, 2012; and Jenny Klebes... within 45 days of the publication of notice of the filing of a proposed rule change, or within such longer period up to 90 days as the Commission may designate if it finds such longer period to...

  6. 77 FR 35657 - Marine Mammals; File Nos. 16163, 16160, and 15569

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-14

    ... Investigator) , 2725 Montlake Blvd. East, Seattle, WA 98112-2097; The Whale Museum (Jenny Atkinson, Responsible Party) , P.O. Box 945, Friday Harbor, WA 98250; and The Center for Whale Research (CWR; Kenneth C... suction- cup tagged. Ultrasound sampling will be directed at killer whales including the Southern...

  7. 77 FR 12815 - Marine Mammals; File No. 16160

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-02

    ... Whale Museum (Responsible Party: Jenny Atkinson), P.O. Box 945, Friday Harbor, WA 98250 has requested a... submitted by the above-named applicant. The Whale Museum proposes to monitor and record vessel activities... provided critical information on characterizing annual vessel trends around Southern Resident killer...

  8. 76 FR 68161 - Marine Mammals; File Nos. 16163, 16160, and 15569

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-03

    ...; The Whale Museum (Jenny Atkinson, Responsible Party) [File No. 16160], PO Box 945, Friday Harbor, WA 98250; and The Center for Whale Research (CWR; Kenneth C. Balcomb III, Responsible Party) [File No... a stock listed as endangered: blue whale (Balaenoptera musculus), fin whale (B. physalus),...

  9. On the Quality of Velocity Interpolation Schemes for Marker-In-Cell Methods on 3-D Staggered Grids

    NASA Astrophysics Data System (ADS)

    Kaus, B.; Pusok, A. E.; Popov, A.

    2015-12-01

    The marker-in-cell method is generally considered to be a flexible and robust method to model advection of heterogenous non-diffusive properties (i.e. rock type or composition) in geodynamic problems or incompressible Stokes problems. In this method, Lagrangian points carrying compositional information are advected with the ambient velocity field on an immobile, Eulerian grid. However, velocity interpolation from grid points to marker locations is often performed without preserving the zero divergence of the velocity field at the interpolated locations (i.e. non-conservative). Such interpolation schemes can induce non-physical clustering of markers when strong velocity gradients are present (Jenny et al., 2001) and this may, eventually, result in empty grid cells, a serious numerical violation of the marker-in-cell method. Solutions to this problem include: using larger mesh resolutions and/or marker densities, or repeatedly controlling the marker distribution (i.e. inject/delete), but which does not have an established physical background. To remedy this at low computational costs, Jenny et al. (2001) and Meyer and Jenny (2004) proposed a simple, conservative velocity interpolation (CVI) scheme for 2-D staggered grid, while Wang et al. (2015) extended the formulation to 3-D finite element methods. Here, we follow up with these studies and report on the quality of velocity interpolation methods for 2-D and 3-D staggered grids. We adapt the formulations from both Jenny et al. (2001) and Wang et al. (2015) for use on 3-D staggered grids, where the velocity components have different node locations as compared to finite element, where they share the same node location. We test the different interpolation schemes (CVI and non-CVI) in combination with different advection schemes (Euler, RK2 and RK4) and with/out marker control on Stokes problems with strong velocity gradients, which are discretized using a finite difference method. We show that a conservative formulation

  10. Attention deficit hyperactivity disorder and the behavior of "Che" Guevara.

    PubMed

    Teive, Hélio A G; Zavala, Jorge A; Munhoz, Renato P; Lara, Diogo R; Lima, Pedro; Palmini, André

    2009-09-01

    Attention deficit hyperactivity disorder (ADHD) is a childhood onset neuropsychiatric disorder characterized by inattention, hyperactivity and impulsivity. ADHD is related to several co-morbidities, such as opposition defiant disorder, conduct disorder, mood and anxiety disturbances, as well as tics and Tourette's syndrome. The objective of this report is to shed an alternative light on the personality of Ernesto "Che" Guevara, discussing whether he might have had ADHD. Several published biographies of Che Guevara were reviewed. Established ADHD criteria (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition), were used as a framework to evaluate Che's behaviour. In addition, we compared the main features of Che's reported behaviour to the set of abnormalities leading to the diagnosis of ADHD in adults proposed by Wender and colleagues and known as the UTAH ADHD criteria. Analysis of the most renowned biographies of Ernesto "Che" Guevara suggests that he may have had ADHD.

  11. Method of Analysis for Determining and Correcting Mirror Deformation due to Gravity

    DTIC Science & Technology

    2014-01-01

    obtainable. 1.3 Description of As-Built Beam Compressor Assembly The as-built beam compressor assembly consists of primary and secondary Zerodur ® mirrors held...Method of analysis for determining and correcting mirror deformation due to gravity James H. Clark, III F. Ernesto, Penado Downloaded From: http...00-00-2014 4. TITLE AND SUBTITLE Method of analysis for determining and correcting mirror deformation due to gravity 5a. CONTRACT NUMBER 5b. GRANT

  12. Reducing the Surface Performance Requirements of a Primary Mirror by Adding a Deformable Mirror in its Optical Path

    DTIC Science & Technology

    2015-12-01

    DEFORMABLE MIRROR IN ITS OPTICAL PATH 5. FUNDING NUMBERS 6. AUTHOR(S) Ernesto R. Villalba 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Naval...Postgraduate School Monterey, CA 93943-5000 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING /MONITORING AGENCY NAME(S) AND ADDRESS(ES) N/A 10...carbon fiber reinforced polymer (CFRP) mirrors been proposed for use in future imaging satellites. Compared to traditional glass-based mirrors, CFRP

  13. Proceedings of the Discussion Meeting on Thermodynamics of Alloys Held in Barcelona, Spain on 23-26 May 1999. Series B. Volume 86

    DTIC Science & Technology

    1990-05-01

    G6mez G6mez. Departamento de F~Sica. Facultad de Ciencias. Universidad der Salamanca. Salamanca - 37008. EDITOR DE ELECTRICIDAD Y MAGNETISMO Prof. D...23 Ciudalcampo, 28700. S.S. Reyes (MADRID) Telef. 6.57.01.19 ELECTRICIDAD Y MAGNETISMO PRESIDENTE Pedro Cartujo Estebanez Depto. de Electronica...Ernesto Martin Rodriguez. Departamento de Electricidad . Facultad de Ciencias. Universidad de Murcia. Murcia - 30001. DIRECCION PARA ENVIAR LOS

  14. Latin America Report No. 2701.

    DTIC Science & Technology

    2007-11-02

    Mendez Ruiz , minister of interior, have expressed outwardly their interest that "a Guatemalan communist party" be founded. Recently the aforesaid...the top leaders are former presidential candidates Mario Fuentes Peruccinni and Col Ernesto Paiz Novales, as well as Mario Mendez Martinez , son of...Council Minister Juan Carlos Simons, representing the Chamber of Com- merce before the Council of State, asked that body in a plenary session yesterday

  15. European Conference on Thermophysical Properties (11th) Held on 13-16 June 1988, University of Umea, Sweden. Abstracts

    DTIC Science & Technology

    1988-06-16

    Nieto de Castro Universidade de Lisboa 42 Departemento de Quimica 63 Rua Ernesto de Vasconcelos Edificio C 1 1700 Lisboa PORTUGAL O Nilsson... ambient temperature. In this range, it has been experimentally found, for the first time, that the spectral radiative properties of ordinary fiberglasses...temperatures slightly above ambient . The transient hot strip (THS) method is very suitable for "instantaneous" determinations of the thermal

  16. In Brief: Underwater volcano gets real-time monitoring

    NASA Astrophysics Data System (ADS)

    Zielinski, Sarah

    2007-05-01

    A real-time underwater earthquake monitoring system was installed on the top of Kick'em Jenny, an underwater volcano located off the north coast of Grenada, on 6 May. The Real Time Offshore Seismic Station (RTOSS) consists of an ocean-bottom seismometer connected by a stretchy hose to a buoy on the ocean surface. The buoy is powered by solar panels and transmits seismic data by high-frequency radio to an observatory in Sauteurs, Grenada. The RTOSS research team, led by scientists from the Woods Hole Oceanographic Institution, is coordinating with the Grenadian National Disaster Management Agency and the Seismic Unit of the University of the West Indies to incorporate the RTOSS data into existing regional monitoring. Kick'em Jenny, the only `live' submarine volcano in the West Indies, last erupted in 2001.

  17. Modifiable Risk Factors for Marijuana Use Among Adolescents in a Youth Development Program

    DTIC Science & Technology

    2010-01-08

    Youth Marijuana Use 1 Modifiable Risk Factors for Marijuana Use Among Adolescents in a Youth Development Program Jenny A. Crain, MS, MPH, CPH, Suzanne L...risk for lifetime marijuana use. Keywords: Marijuana use; Risk factors; Youth development programs; Adolescents Modifiable Risk Factors for...negative consequences. Previous research has shown that adolescents with a history of prior marijuana, tobacco, and/or alcohol use are at greater risk of

  18. National Security Mission, Members and Budgeting in the United States and Australia: A Comparative Analysis

    DTIC Science & Technology

    2011-06-01

    U.S. General Services Administration HHS Department of Health and Human Services HSAC Homeland Security Advisory Committee JUG Joined-Up...to thank my wife, Jenni, for her unwavering support, endless patience and critical eye. Without her friendship, love, and laughter none of this...horizontally and vertically co-ordinated thinking and action. Through the co-ordination it is hoped that a number of benefits can be achieved. First

  19. Water and Sediment Quality in the Yukon River Basin, Alaska, During Water Year 2005

    DTIC Science & Technology

    2007-01-01

    John Borg, Tim Brabets, Christian Breen, Kenna Butler, Leon Caroll, Mark Carr, Veronica Carrasco, Mark Castor, Ken Coe, Charlie Couvillion, Steve...Mike Parker, John Pearce, Francis Peters, Terry Plowman, Pete Raymond, Mike Reddy, Dennis Rosenkranz, Dave Roth , Andrea Ryan, Tom Sabin, Jenny vii...15565447 9/27/2005 2.2 14 2.5 21 24 25 CHAPTER 4 - Dissolved Major Cations and Trace Elements by Howard E. Taylor, David A. Roth , and Ronald C

  20. U.S.-UK Relations at the Start of the 21st Century

    DTIC Science & Technology

    2006-01-01

    TR) wrote to his closest British friend, Cecil Spring Rice, "I am greatly mistaken if we ever slide back into the old conditions of bickering and...accessed July 17, 2005. 17. Jenny Booth , "Oona King Reveals ’yid’ Taunts During Election," The Times, London, May 11, 2005, available at http...the United States is the world’s sole superpower, the "hyperpuissance" in the description of former French Foreign Minister Hubert Vedrine. The "status

  1. Draft Environmental Impact Statement: Peacekeeper Rail Garrison Program

    DTIC Science & Technology

    1988-06-01

    1976, Anthropology, University of Illinois, Urbana Ph.D., 1983, Anthropology, University of Illinois, Urbana Years of Experience: 14 Jenny Carson ...Jackie Casper Madeline Dalrymple Loyd Ann Caston Jerome L. Darby Tom Cave Phil D. Darnell Connie Cella Mr. and Mrs. Ray David Louise Chadez Charles A...Christine I. Diffie Andrea Cook Burt and Josie Dinnison Pete Cook George Dixon Ernest Cooper Rachel A. Dixon Mrs. Coy Cooper Ed Dolezal Phil Cooper Willard G

  2. Human Systems Integration (HSI) in Acquisition. HSI Domain Guide

    DTIC Science & Technology

    2009-08-01

    Debbie Burdich, Gloria Calhoun, David Carpenter , Gregg Clark, Barry Craigen, Eric Crawford, Greg Edwards, Jennie Farrell, Curtis Fey, Richard Freeman...Drivers The numbers in the Activities boxes correspond to the numbers In the Inputs and Outputs boxes. Tools: ● HMIRS ● BEE ● HSI Requirements Guide...to the numbers In the Inputs and Outputs boxes. Tools: ● HMIRS ● Cost Avoidance Methodology ● AHAAH ● BEE ● DOEHRS References: ● MIL-STD-882D

  3. Artificial suckling in Martina Franca donkey foals: effect on in vivo performances and carcass composition.

    PubMed

    De Palo, Pasquale; Maggiolino, Aristide; Milella, Paola; Centoducati, Nicola; Papaleo, Alessandro; Tateo, Alessandra

    2016-01-01

    In recent years, there has been an increasing interest on donkey milk production, on its characteristics, and also on breeding techniques. Donkey milk is characterized by high economic value, although the productive level of jennies is poor. During the milking process, foals are usually separated from their dams, allowing the milk collection in the mammary gland of jennies before milking session. This takes 8 h per day of fastening period for lactating donkey foals. During this period, it could be possible to apply a partial artificial suckling system (artificial suckling during daytime and natural suckling during the night). The aim of the work is the evaluation of the effect of this innovative technique on in vivo performances and on meat production traits of Martina Franca donkey foals. Forty Martina Franca jennies with their foals were used for the trial. After colostrum assumption, 20 foals were partially artificially suckled (AS) during each day, and 20 foals were naturally suckled (NS). From 8.00 to 20.00, both groups were separated from their mothers in order to allow the milking procedures of the jennies. The AS group was in a stall equipped with an automatic calf-suckling machine. For each group, 10 foals were slaughtered at 12 months and 10 foals at 18 months. Artificial suckling system positively affected the growth rate of donkey foals, particularly in the first 6 months from birth, with higher weekly weight gain (P < 0.01), higher final live weight (P < 0.001), and carcass weight (P < 0.01), but no effects were observed on carcass dressing percentage (P > 0.05). Artificial suckling system permitted to extend the time of foal separation from their mothers increasing milk collection time per day, awarding fastening periods in foals.

  4. Effect of the season on some aspects of the estrous cycle in Martina Franca donkey.

    PubMed

    Contri, A; Robbe, D; Gloria, A; De Amicis, I; Veronesi, M C; Carluccio, A

    2014-03-15

    The Martina Franca (MF) donkey breed, with 48 jackasses and 515 jennies, is considered an endangered breed according to the data from the Monitoring Institute for Rare Breeds and Seeds in Europe. The knowledge of the estrous cycle characteristics has a great impact for assisted reproduction, especially in endangered species. In this study, the estrous cycle characteristics were investigated in 12 MF jennies throughout the year. Estrous cycle, estrous and diestrous lengths, follicular growth and ovulation, and estradiol-17β (E2) and progesterone (P4) plasma concentrations were monitored in MF jennies and compared in different seasons. In all jennies (100%) estrous cycle was detected during the whole year, with no differences in the estrous cycle length among seasons. However, a significant increase of estrous length in spring and summer compared with autumn and winter was found. Diestrus was shorter in summer than in the other seasons. Estrous behavior was always shown and characterized by rhythmic eversion of the vulvar labia (winking) with exhibition of the clitoris, urination, male receptivity and clapping, with sialorrhoea, neck and head extension, and back ears. Estrus was characterized by the ovulation of a larger follicle in spring and summer than in autumn and winter. The pattern of E2 and P4 plasma concentrations during the estrous cycle were similar to that reported for the mare, but without differences among the four seasons, so that a negligible effect of environmental conditions on ovarian E2 and P4 secretion was hypothesized, despite the larger diameter of the ovulating follicle in spring and summer.

  5. Honduras Defense Policy.

    DTIC Science & Technology

    1986-04-22

    and Company. 1985 5. Herrera, Roberto,1 Politica Exterior y Presencia de Honduras En Las Naciones Unidas, New York, 25 March 1986. 6. Lincoln, Jennie...Discovered by Columbus in his last voyage in August 1502, Honduras was part of the Mayan Empire that flourished throughout Southern Mexico , Guatemala...Belize, and the Northwestern area of El Salvador. The period of colonization began in the early 1520’s after the arrival of Hernan Cortez to Mexico

  6. Improving Shaping Efforts in Africa’s Maghreb and Sahel

    DTIC Science & Technology

    2011-03-21

    Jenny Booth, "Al-Qaeda kills British hostage Edwin Dyer; kidnapped in Mali after music festival," Times Online , June 3, 2009, http://www. times...34Al-Qaeda kills British hostage Edwin Dyer, kidnapped in Mali after music festivaL" Times Online , June 3, 2009, http://www.timesonline.co.uk/tol...tomorrow. · DISCLAIMER THE OPINIONS AND CONCLUSIONS EXPRESSED HEREIN ARE THOSE OF THE · INDIVIDUAL STUDENT AUTHOR AND DO NOT NECESSARILY REPRESENT

  7. Quick, Quick, Slow

    ERIC Educational Resources Information Center

    Johnson, Will

    2008-01-01

    As someone more at home in jeans and pumps it was a bit of a shock. The author could not quite get used to the sight of his feet in his father-in-law's black and pointy dancing shoes. Jennie, more often seen in trainers or steel-capped boots, had on a pair of strappy heels she'd borrowed from her mum. They felt like kids dressing up in their…

  8. Schmitz conviction is clear rejection of victim-blaming.

    PubMed

    1999-10-01

    The verdict in the trial of Jonathan Schmitz, convicted of killing Scott Amedure after appearing together on the Jenny Jones TV talk show, underlined the message of no tolerance for perpetrators of hate crimes. The group Parents, Families and Friends of Lesbians and Gays (PFLAG) reiterated that hate crimes affect the entire community, and appealed to Congress to pass the Hate Crimes Prevention Act (HCPA). The HCPA would expand the coverage of current Federal legislation to include gender, disability, and sexual orientation.

  9. A Stochastic Mixed Finite Element Heterogeneous Multiscale Method for Flow in Porous Media

    DTIC Science & Technology

    2010-08-01

    quickly. However, for reservoir simulation the most crucial factor is the transport prop- erties of a velocity field. That is, a large local error in the...streamline methods for reservoir simulation of large geomodels, Advances in Water Resources 28 (2005) 257 – 271. [11] P. Jenny, S. H. Lee, H. A. Tchelepi... Reservoir Simulation , 2003, pp. 23–27. [53] R. Ghanem, P. D. Spanos, Stochastic Finite Elements: A Spectral Approach, Springer - Verlag, New York

  10. The Behavioral Effects of Environmental Enrichment in Rats

    DTIC Science & Technology

    2007-11-02

    the write-up would be incomplete. Thank you to Brenda Elliott and Jenny Phillips for teaching and assisting me in every step of this process. My...File, & Briley, 1985; Hogg , 1996; Kalinichev et al., 2002). The apparatus consists of four radiating platforms that are at right angles to each...indices of anxiety or stress (Santucci et al., 1994; Hogg , 1996; Cook, 2003). Increases in anxiety would be reflected by decreased time spent in

  11. CORRECTIVE ACTION PLAN FOR CORRECTIVE ACTION UNIT 536: AREA 3 RELEASE SITE, NEVADA TEST SITE, NEVADA

    SciTech Connect

    2005-09-01

    CAU 536 consists of CAS 03-44-02, Steam Jenny Discharge, located in Area 3 of the NTS. The site was characterized in 2004 according to the approved CAIP and the site characterization results are reported in the CAU 536 CADD. The purpose of this Corrective Action Plan (CAP) is to provide the detailed scope of work required to implement the recommended corrective actions as specified in the approved CAU 536 CADD.

  12. Census of U.S. Civil Aircraft. Calendar Year 1982.

    DTIC Science & Technology

    1982-12-31

    46C 65 51 2 0 1 1 C-46 69 51 2 0 3 3 C-46A 69 51 2 0 2 2 C-46F 69 51 2 0 5 5 C-46R 69 51 2 0 3 3 SB2C5 2 41 1 0 1 1 P-40N 1 41 1 0 1 1 JN-4-D JENNY 2...1 JEENIE TEENIE 1 41 1 0 1 1 JEENIES TEENIE 1 41 1 0 1 1 - JEFFAIR BARRACUDA 2 41 1 0 1 1 JENNY JN-40 1 41 1 0 1 1 JGM-1 1 41 1 0 1 1 JH-1 1 41 1 0 1...1 . JIM’S FLY BABY 1 41 1 0 1 1 JK I-A 1 41 1 0 1 1 *JK1-B 1 41 1 0 1 1 * JL-65 1 41 1 0 1 1 JM-1 1 41 1 0 1 1 JM-i01 2 41 1 0 1 1 JN-4D JENNY

  13. Non-invasive Pregnancy Diagnosis from Urine by the Cuboni Reaction and the Barium Chloride Test in Donkeys (Equus asinus) and Alpacas (Vicugna pacos).

    PubMed

    Kubátová, A; Fedorova, T; Skálová, I; Hyniová, L

    2016-09-01

    The aim of the research was to evaluate two chemical tests for non-invasive pregnancy diagnosis from urine, the Cuboni reaction and the barium chloride test, in donkeys (Equus asinus) and alpacas (Vicugna pacos). The research was carried out from April 2013 to September 2014. Urine samples were collected on five private Czech farms from 18 jennies and 12 alpaca females. Urine was collected non-invasively into plastic cups fastened on a telescopic rod, at 6-9 week intervals. In total, 60 and 54 urine samples from alpacas and jennies, respectively, were collected. The Cuboni reaction was performed by the State Veterinary Institute Prague. The barium chloride test was done with 5 ml of urine mixed together with 5 ml of 1% barium chloride solution. Results of the Cuboni reaction were strongly influenced by the reproductive status of jennies; the test was 100% successful throughout the second half of pregnancy. However, no relationship was found between the real reproductive status of alpaca females and results of the Cuboni reaction. It was concluded that the barium chloride test is not suitable for pregnancy diagnosis either in donkeys, due to significant influence of season on the results, or in alpacas, because no relationship between results of the test and the reproductive status of alpaca females was found. In conclusion, the Cuboni reaction has potential to become a standard pregnancy diagnostic method in donkeys.

  14. Clinical, ultrasonographic, and endocrinological studies on donkey pregnancy.

    PubMed

    Crisci, Angelica; Rota, Alessandra; Panzani, Duccio; Sgorbini, Micaela; Ousey, Jennifer C; Camillo, Francesco

    2014-01-15

    Although donkey breeding has gained new interest in the past two decades, knowledge about donkey reproduction is still scarce, particularly on jenny pregnancy. The aim of this study was to describe the ultrasonographic and endocrine profiles of the physiological pregnancy in the jenny. The study was performed on 12 pregnancies of 7 Amiata donkeys from Day 10 after ovulation to delivery. Because three pregnancies, respectively at weeks 42, 44, and 45, were considered pathologic and treated pharmacologically, data collected from 2 weeks before diagnosis to the end of pregnancy were removed from the analysis. Average length of the normal pregnancies was 353.4 ± 13.0 days (range, 339-370 days). Timing, dimensions, and development during the first phases of embryonic growth, evaluated using transrectal ultrasound, were similar to that previously described in jennies and mares: first detection of embryonic vesicle was at 11.8 ± 1.3 days of gestation and diameter was 6.5 ± 1.9 mm, loss of spherical shape occurred at 18.5 ± 1.4 days, and embryo and heart beat were first seen at 22.0 ± 1.1 and 25 ± 1.1 days, respectively. The intrauterine growth in the second half of pregnancy, evaluated using the transrectal and transabdominal approach, also showed strong positive correlations, similar to that reported for the mare. The trends of the combined thickness of the utero-placental unit and the echogenicity of the amniotic and allantoic fluids are examples. The diameters (mm) of fetal chest, eye orbit, and aorta increased throughout pregnancy and were 40.6 ± 2.9, 8.7 ± 1.5, and 3.5 ± 0.7, respectively, at week 13, and 190.9 ± 12.0, 21.4 ± 1.5, and 30.6 ± 1.8 at the last evaluation before parturition. In contrast, heart rate decreased as pregnancy progressed. Regression analyses between these parameters and day of gestation were statistically significant (P < 0.001). All fetuses consistently showed some intrauterine activity. Maternal plasma progestagens and estrone

  15. Analysis of wind-driven ambient noise in a shallow water environment with a sandy seabed.

    PubMed

    Knobles, D P; Joshi, S M; Gaul, R D; Graber, H C; Williams, N J

    2008-09-01

    On the New Jersey continental shelf ambient sound levels were recorded during tropical storm Ernesto that produced wind speeds up to 40 knots in early September 2006. The seabed at the position of the acoustic measurements can be approximately described as coarse sand. Differences between the ambient noise levels for the New Jersey shelf measurements and deep water reference measurements are modeled using both normal mode and ray methods. The analysis is consistent with a nonlinear frequency dependent seabed attenuation for the New Jersey site.

  16. [Democracy and conflict in pluralist contexts: an interview with Chantal Mouffe].

    PubMed

    Mouffe, Chantal; Ramos, Aura Helena; de Oliveira, Anna Luiza A R Martins; de Oliveira, Gustavo Gilson S; de Mesquita, Rui Gomes de Mattos

    2014-01-01

    Chantal Mouffe, along with Argentinian political theorist Ernesto Laclau (1935-2014), laid down the bases of discourse theory in 1985. She later developed her work by exploring in more detail how discourse theory formulations influence the analysis of contemporary democracies. Approaching conflict as a product of the encounter with difference, Mouffe sees it as an indelible part of the constitution of social relationships. In this encounter with the author, we seek to reflect upon certain themes and problematics that are central to her work, and upon the implications of her theory for the field of contemporary education.

  17. The mathematical modeling of the lactation curve for dairy traits of the donkey (Equus asinus).

    PubMed

    Bordonaro, S; Dimauro, C; Criscione, A; Marletta, D; Macciotta, N P P

    2013-06-01

    In recent years, an increase in the number of donkeys farmed in Italy as a consequence of the growing demand for donkey milk for direct consumption has been observed. Some research has been carried out on jenny milk composition and on its nutritional properties, whereas milk production features are scarcely described for this species. In this work, the lactation curve shape of donkeys for milk yield and composition was investigated. A total of 453 test-day records for milk yield, fat and protein percentage, and somatic cell count of 62 lactations measured on 46 multiparous jennies of the Ragusano breed were considered. Effects of herd, age, and foaling season were assessed by using a mixed model analysis. Average and individual lactation curves were fitted using the Wood incomplete gamma function, the Cappio-Borlino modified gamma, and a third-order Legendre orthogonal polynomial model. Donkeys foaling between 6- and 10-yr-old had the highest test-day milk yield (about 1.85 kg/d). Donkeys foaling in winter and autumn had a higher daily milk yield compared with those foaling in summer and spring. Less defined results were obtained for composition traits. The general pattern of the donkey lactation curve is similar to the standard shape reported for the main dairy ruminant species, with a peak yield occurring at about 5 wk from parturition. Younger jennies tended to have lower production peaks and higher lactation persistency. Similarly to what is reported for dairy cattle, a large variability in individual patterns has been observed. No differences in goodness of fit have been observed between the models in the case of average lactation curves, whereas orthogonal polynomials were more efficient in fitting individual patterns.

  18. Embryo quality and transcervical technique are not the limiting factors in donkey embryo transfer outcome.

    PubMed

    Panzani, D; Rota, A; Crisci, A; Kindahl, H; Govoni, N; Camillo, F

    2012-02-01

    Embryo transfer (ET) in the donkey resulted in a very low recipient pregnancy rates. The aim of these studies was to investigate if nonsurgical transfer techniques or donkey embryo quality affect donkey recipient pregnancy failure. In Study 1, the impact of transfer technique was investigated by evaluating if cervical catheterization is associated with prostaglandin release and suppression of luteal function and if donkey recipients would become pregnant after nonsurgical transfer of horse embryos. Four jennies, from 5 to 8 d after ovulation, were submitted to a sham transcervical ET and to evaluation of PGFM and progesterone plasma concentrations. Five 8 d horse embryos were nonsurgically transferred into synchronized donkey recipients (HD). Cervical stimulation caused a transient PGF(2α) release in two of four jennies in the absence of a significant decrease in progesterone plasma concentration. All transferred horse embryos resulted in pregnancies in the jenny recipients. In Study 2, donkey embryo viability was investigated by 1.2 meters, 6-diamidino-2-phenylindole (DAPI) staining of 10 embryos and by the transfer of 6 and 12 donkey embryos in synchronized mare (DH) and donkey (DD) recipients, respectively, of known fertility. The estimated proportion of dead cells in DAPI stained embryos was 0.9% (range 0-3.9%) and below what is considered normal (20%) for horse embryos. Three of six and six of 12 of the DH and DD ETs, respectively resulted in pregnancies at 14 and 25 d (50%), a higher pregnancy rate than previously reported after DD ET. The overall results of this study suggest that the transcervical technique for ET and donkey embryo viability are not the reasons for the low pregnancy rates that have previously been described in donkey recipients, and that nonsurgical ET in donkeys can result in acceptable results.

  19. Looking beyond satisfaction: evaluating the value and impact of information skills training.

    PubMed

    Raynor, Michael; Craven, Jenny

    2015-03-01

    In this feature guest writers Michael Raynor and Jenny Craven from the National Institute for Health and Care Excellence (NICE) present an overview of their evaluative research study on the value and impact of the information skills training courses they provide at NICE. In particular, this small study used a combination of qualitative and quantitative data to look beyond satisfaction and confidence levels and identify whether learning had actually taken place as a result of attending the sessions, and how new skills were used by the attendees in their day-to-day work. H.S.

  20. Time to RE-AIM: Why Community Weight Loss Programs Should Be Included in Academic Obesity Research

    PubMed Central

    Prochazka, Allan V.; Glasgow, Russell E.

    2016-01-01

    Despite decades of efficacy-based research on weight loss interventions, the obesity epidemic in the United States persists, especially in underserved populations. We used the RE-AIM (Reach, Efficacy/Effectiveness, Adoption, Implementation, and Maintenance) framework to describe the limitations of the current paradigm of efficacy-based research for weight loss interventions. We also used RE-AIM to propose that existing weight loss interventions (community-based programs) such as Jenny Craig, Take Off Pounds Sensibly (TOPS), and Weight Watchers be studied to supplement the efficacy-based research approaches to achieve population-level impact on obesity. PMID:26986540

  1. Time to RE-AIM: Why Community Weight Loss Programs Should Be Included in Academic Obesity Research.

    PubMed

    Mitchell, Nia S; Prochazka, Allan V; Glasgow, Russell E

    2016-03-17

    Despite decades of efficacy-based research on weight loss interventions, the obesity epidemic in the United States persists, especially in underserved populations. We used the RE-AIM (Reach, Efficacy/Effectiveness, Adoption, Implementation, and Maintenance) framework to describe the limitations of the current paradigm of efficacy-based research for weight loss interventions. We also used RE-AIM to propose that existing weight loss interventions (community-based programs) such as Jenny Craig, Take Off Pounds Sensibly (TOPS), and Weight Watchers be studied to supplement the efficacy-based research approaches to achieve population-level impact on obesity.

  2. Preliminary survey report: evaluation of brake drum service controls at Indianapolis Power and Light Company, Indianapolis, Indiana

    SciTech Connect

    Godbey, F.W.

    1988-08-01

    An evaluation was made of various control technologies designed to reduce asbestos exposures during brake drum servicing at Indianapolis Power and Light Company, Indianapolis, Indiana. The garage at this facility serviced about 425 vehicles each year with about 200 brake repair jobs being done annually. During servicing, a regular wet and dry vacuum cleaner was used, along with a steam jenny containing liquid soap, and a liquid spray can. Once the wheel was removed, the entire hub area was sprayed with steam foam at 90 pounds per square inch from the steam jenny containing liquid soap. The hub area was vacuumed prior to and following removal. The vacuum cleaner was not equipped with an HEPA filter. A liquid spray can was used to clean the plates. The brake shoe area was vacuumed. Once the brake area was free of all accumulated dust, the brakes were serviced. The author concludes that control measures did not appear to be sufficient to keep asbestos dust from emanating into the atmosphere. The facility was not selected for an in-depth evaluation.

  3. A preliminary study on the quality and safety of milk in donkeys positive for Toxoplasma gondii.

    PubMed

    Martini, M; Altomonte, I; Mancianti, F; Nardoni, S; Mugnaini, L; Salari, F

    2014-12-01

    Toxoplasmosis is one of the five parasitic diseases considered as a priority for public health action. The consumption of raw milk products represents a possible risk, in particular for certain categories of people. The aim of this study was to evaluate the possible effects of Toxoplasma gondii on milk yield and quality in sero-positive animals with parasitemia. Eighteen healthy lactating Amiata jennies, between 90 and 180 days were included in the study. Four donkeys scored positive for immunofluorescent antibody test (IFAT), and each IFAT positive donkey presented parasitic DNA both in the blood and milk. No significant differences were found between milk yield in PCR-positive donkeys compared with the negative cases, however the former tended to have a greater production. Milk quality in the positive donkeys showed a significantly lower percentage of casein (0.72% v. 0.81%) and ash (0.32% v. 0.37%). Positive cases had a highly significant larger average diameter of globules (2.35 µm) and fewer globules/ml (2.39 × 10(8)). Somatic cell and bacterial counts were normal and in agreement with the literature. Toxoplasma gondii did not seem to present clinical forms in lactating jennies. Further in vivo studies are needed to further assess the risk of T. gondii transmission through donkey milk, together with the impact of different stages of infection on milk quality.

  4. Curtiss JN-4H Towing Model Wing

    NASA Technical Reports Server (NTRS)

    1921-01-01

    In 1919 the NACA Langley laboratory received its first three research aircraft which were Curtiss JN-4Hs borrowed from the US Army Air Service at Langley Field. One of the first research projects of the laboratory initiated that year was a flight investigation of the lift and drag characteristics of the JN-4H. One of the objectives of the flight tests was to obtain data for correlation with wind-tunnel test results measured at MIT and to aid in the derivation of techniques for extrapolation of model results to full-scale conditions. In a pioneering aeronautical effort in 1920, pressure orifices were installed in the horizontal tail of one of the Jennies and connected to glass manometers for pressure measurements that could be photographed in flight. The NACA also used the aircraft in some of the earliest experiments on maneuverability in 1921. In addition to serving as test subjects, the aircraft were used for measurements of aerodynamic behavior of aircraft components. In this photograph made in 1921, one of the JN- 4Hs is towing a model of an aircraft wing to obtain lift and drag information for comparison to tunnel results. All three Jenny aircraft departed Langley in 1923. Reference: 'Flying the Frontiers: NACA and NASA Experimental Aircraft' by Arthur Pearcy. Naval Institute Press, 1993. ISBN 1-55750-258-7

  5. Factors affecting gestation length and estrus cycle characteristics in Spanish donkey breeds reared in southern Spain.

    PubMed

    Galisteo, J; Perez-Marin, C C

    2010-08-01

    This paper investigated gestation length and estrus cycle characteristics in three different Spanish donkey breeds (Andalusian, Zamorano-Leones, and Catalonian) kept on farm conditions in southern Spain, using data for ten consecutive breeding seasons. Gestation length was measured in 58 pregnancies. Ovarian ultrasonography was used to detect the ovulation, in order to ascertain true gestation length (ovulation-parturition). Pregnancy was diagnosed approximately 14-18 d after ovulation and confirmed on approximately day 60. Average gestation length was 362 +/-15.3 (SD) d, and no significant differences were observed between the three different breeds. Breeding season had a significant effect (P < 0.01), with longer gestation lengths when jennies were covered during the early period. Breed, age of jenny, year of birth, foal gender, month of breeding, and type of gestation had no significant effect on gestation length. After parturition, foal-heat was detected in 53.8% of the postpartum cycles studied (n = 78), and ovulation occurred on day 13.2 +/- 2.7. The duration of foal-heat was 4.7 +/-1.7 d, with a pregnancy rate of 40.5%. When subsequent estrus cycles were analyzed, the interovulatory interval (n = 68) and estrus duration (n = 258) were extended to a mean 23.8 +/- 3.5 and 5.7 +/- 2.2 d, respectively. Both variables were influenced by the year of study (P < 0.03 and P < 0.001), whereas month and season of ovulation (P < 0.005 and P < 0.009, respectively) affected only interovulatory intervals. Estrus duration was significantly longer than that observed at the foal-heat (P < 0.006), and the pregnancy rate was 65.8%. This study provides reference values for true gestation length and estrus cycle characteristics in Spanish jennies. Breeding season affected gestation length in farm conditions. Also, seasonal influence was observed on the length of the estrus cycle (i.e., interovulatory interval), although foal-heat was not affected by environmental factors.

  6. Nationalism, Carrión's disease and medical geography in the Peruvian Andes.

    PubMed

    Cueto, Marcos

    2003-01-01

    During the turn of the 20th century medical geography in Peru concentrated in the study of a native disease (bartonellosis, also known as Carrión's disease and Verruga Peruana) and reinforced the relationship between the country's 'natural' regions (coast, highlands and Amazon) and different patterns of disease. Expert knowledge on these themes was portrayed as important not only for the practice of medicine but also for the development of the country. This knowledge was instrumental for an emergent local medical tradition and for legitimizing the authority, power and prestige of Lima's medical elite. The city was the capital of a country whose population was mainly Indian and rural, and lived in the highlands. This article studies the development of medical geography in Peru emphasizing the role played by Ernesto Odriozola, an influential clinician from Lima trained in Paris.

  7. Viva La Ciencia: Cuba’s Creative Scientists Aim to Make Knowledge Their Country’s Sugar Substitute

    NASA Astrophysics Data System (ADS)

    Reid, Rosalind; Hayes, Brian

    At first, peas served as particles in Ernesto Altshuler's experiment. A mechanical dispenser would drop the chícharos one by one into the space between two glass plates, forming a tidy two-dimensional approximation of a sand pile. Lattice structure appeared, then vanished, as the pile self-organized and went critical—avalanche! But Havana's insects soon found the peas in Altshuler's physics lab. For a physicist working under harsh economic conditions of Cuba in the early 1990s, options were few. Yet Altshuler's solution came as a byproduct of the crisis: Because of fuel shortages, the country had begun importing Chinese bicycles, and ball bearings were available in abundance. Thus the peas have been replaced by steel beads, but Altshuler and his students still call their machine the chícharotron.

  8. De Martino's concept of critical ethnocentrism and its relevance to transcultural psychiatry.

    PubMed

    Stanghellini, Giovanni; Ciglia, Raffaella

    2013-02-01

    Ethnography and hermeneutics help us think of the clinical encounter as a meeting of cultures. In this paper, we examine Ernesto De Martino's concept of critical ethnocentrism and its relevance for psychiatry, arguing for the necessity of a cultural self-assessment on the part of the clinician as a means of optimizing analyses of the patient's culture. Conceptualizing the clinician as an "ethnologist," we argue that clinicians should be able to describe and acknowledge patients' cultural backgrounds, while remaining aware of their own culturally rooted prejudices. Focusing on the case of persons affected by schizophrenia, we suggest that De Martino's work invites an openness to hermeneutic dialogue that aims for the coconstruction of shared narratives by clinician and patient.

  9. [Pinocchio and the unattained identity: Jervis' contribution to child clinical psychology].

    PubMed

    Meacci, Stefano

    2012-01-01

    Giovanni Jervis is mainly known as a psychiatrist, but he also worked on psychological methodology and tackled important issues in clinical psychology. This essay describes the concept of personal identity elaborated by Jervis and its importance in Child Clinical Psychology. The problems related to personal identity appear very early in Jervis' work, influenced by the ethnologist Ernesto De Martino. His first considerations are found in his Preface to The Adventures of Pinocchio by Carlo Collodi (1968), in which Jervis describes the unhappy upbringing, the anti-social behaviour, and the unattained identity of the wooden puppet. Subsequently, in Presenza e identith (1984), Fondamenti di Psicologia Dinamica (1993) and La conquista dell'identith (1997), Jervis dealt with the theme of identity from a Dynamic Psychology perspective, showing that the formation of personal identity is a basic aspect of the development of the individual that starts in early childhood.

  10. A high resolution study of a hurricane storm surge and inundation in Veracruz, Mexico

    NASA Astrophysics Data System (ADS)

    Díaz García, Ovel; Zavala Hidalgo, Jorge; Douillet, Pascal

    2014-05-01

    Veracruz is the most populated city along the Mexican shoreline of the Gulf of Mexico and also is the country's largest commercial port. In recent years the city has been affected by hurricanes of medium intensity that have provoked human casualties, property damaged and economic loss. Two of the most recent events were hurricane Karl (2010), which caused a storm surge and severe flooding, and hurricane Ernesto (2012). The purpose of this work is to study, based on high-resolution numerical simulations, scenarios of storm surge flooding using state-of-the-art open source numerical models: the Weather, Research and Forecasting (WRF), and the coupled models ADvanced CIRCulation (ADCIRC) and Simulating WAves Nearshore (SWAN) for weather and storm surge hindcast, respectively. We also use topography high resolution data from LIDAR and bathymetry from GEBCO 30", the Mexican Navy and nautical charts from Electrical Federal Commission. We present the validation of the models evaluating several statistical parameters against measurements from Acoustic Data Current Profilers, pressure sensors, tide gauge and meteorological stations for these events. In the case of hurricane Karl, it made landfall 15 km north of Veracruz City, reducing the maximum surge along the city shoreline. The hurricane Ernesto made landfall 200 km southeast of the city, too far to have a significant impact. We did some numerical experiments slightly changing the trajectory, reported by the best track data, for these two hurricanes with the purpose of evaluating storm surge scenarios. The results shows that the worst storm surge cases were when the tracks of this hurricanes made landfall south of the city in the range of 30 to 60 km.

  11. p53: out of Africa.

    PubMed

    Lane, David

    2016-04-15

    Somatic mutations in the tumor suppressor gene p53 occur in more than half of all human cancers. Rare germline mutations result in the Li-Fraumeni cancer family syndrome. In this issue ofGenes&Development, Jennis and colleagues (pp. 918-930) use an elegant mouse model to examine the affect of a polymorphism, P47S (rs1800371), in the N terminus of p53 that is found in Africans as well as more than a million African Americans. Remarkably, the single nucleotide change causes the mice to be substantially tumor-prone compared with littermates, suggesting that this allele causes an increased risk of developing cancer. The defect in p53 function is traced to a restriction in downstream gene regulation that reduces cell death in response to stress.

  12. Uncertainty Quantification of Tracer Dispersion with the PMVP Model under Realistic Conditions

    NASA Astrophysics Data System (ADS)

    Meyer, D. W.; Duenser, S.

    2015-12-01

    The polar Markovian velocity process (PVMP) model provides a computationally efficient method to propagate input uncertainty stemming from unknown permeability fields to output flow and transport statistics [Meyer and Tchelepi, WRR, 2010; Meyer, Jenny, and Tchelepi, WRR, 2010; Meyer et al., WRR, 2013]. Compared with classical Monte Carlo (MC) sampling, the PMVP model provides predictions of tracer concentration statistics at computing times that are three orders of magnitude smaller. Consequently, the PMVP model is as well significantly faster than accelerated sampling techniques such as multi-level MC or polynomial chaos expansions. In this work, we further evaluate the PMVP model performance by applying the model for tracer dispersion predictions in a setup derived from the well-known MADE field experiment [Boggs et al., WRR, 1992]. We perform detailed model validations against reference MC simulations and conclude that the model provides overall accurate dispersion predictions under realistic conditions.

  13. Color Doppler provides a reliable and rapid means of monitoring luteolysis in female donkeys.

    PubMed

    Miró, J; Vilés, K; Anglada, O; Marín, H; Jordana, J; Crisci, A

    2015-03-01

    When artificial reproduction technologies designed for use with horses are used with donkeys, success is dependent on awareness of the physiological differences between these species, yet little information is available on many aspects of donkey reproduction. The present work examines the activity of the CL in Catalonian jennies after induced luteolysis. Plasma progesterone concentration, luteal blood flow (determined by color Doppler), and CL cross-sectional area (CL-CSA; determined by B-mode ultrasound examination) were assessed after a single dose (5 mg intramuscular) of dinoprost thromethamine (DT, a PGF2α analog) on Day 10 after ovulation in two experiments. In experiment 1, a preliminary experiment, data were collected daily for 4 days after DT administration. Values for all the measured variables decreased over this period. In experiment 2, data were collected during the first 24 hours after DT administration because in experiment 1, most luteolytic activity occurred during this time. An increase in luteal blood flow was seen between 0 and 3 hours, followed by a progressive reduction, whereas the values for plasma progesterone and CL-CSA gradually decreased from 0 hours onward. In both studies, negative correlations were seen between all variables and the time of sampling. In contrast, positive correlations were seen between plasma progesterone, CL-CSA, uterine tone, and luteal blood flow. Indeed, a strong correlation was recorded between plasma progesterone and luteal blood flow (r = 0.70; P < 0.0001). In conclusion, plasma progesterone and CL-CSA both become reduced after induced luteolysis in Catalonian jennies. Unlike in mares, an increase in luteal blood flow occurs soon after induced luteolysis, rather like that seen in the cow. The luteal blood flow, as evaluated here by color Doppler, was also closely related to the plasma progesterone concentration. Color Doppler would appear therefore to offer a rapid and easy means of examining the state

  14. Effect of donkey seminal plasma on sperm movement and sperm-polymorphonuclear neutrophils attachment in vitro.

    PubMed

    Miró, Jordi; Vilés, Karina; García, Wilber; Jordana, Jordi; Yeste, Marc

    2013-08-01

    To evaluate the effect of seminal plasma in endometrial inflammation in donkeys, samples from fresh pure, fresh diluted and frozen-thawed semen of three different jackasses were co-incubated in water bath at 37°C with uterine Jennie's secretions collected 6h after artificial insemination with frozen-thawed donkey semen. Individual sperm movement parameters using the computerised sperm analysis system (CASA) and sperm-polymorphonuclear neutrophils (sperm-PMN) attachment observed in Diff-Quick stained smears were evaluated at 0, 1, 2, 3 and 4h of co-incubation. Controls consisted of incubating diluted or frozen-thawed sperm in the absence of uterine secretions. For data analyses, a repeated measures ANOVA was performed with incubation time as intra-subject factor and with treatment and donkey as inter-subject factor, followed by a post-hoc Bonferroni's test. Greater values (P<0.05) of sperm-PMN percentages and a loss of progressive motility were observed in frozen-thawed semen compared with pure and diluted fresh semen samples throughout the incubation time. In addition, the presence of seminal plasma in fresh and diluted semen samples reduced the inflammatory response of polymorphonuclear neutrophils produced after insemination by suppressing the sperm-PMN attachment in vitro. Motility sperm parameters analysed by CASA were also less affected than those in frozen-thawed semen samples. In conclusion, seminal plasma in jennies appears to have a modulation on the endometrial response after artificial insemination with frozen-thawed donkey semen. As a result, spermatozoa with the greater motility characteristics are selected.

  15. On the Quality of Velocity Interpolation Schemes for Marker-in-Cell Method and Staggered Grids

    NASA Astrophysics Data System (ADS)

    Pusok, Adina E.; Kaus, Boris J. P.; Popov, Anton A.

    2016-11-01

    The marker-in-cell method is generally considered a flexible and robust method to model the advection of heterogenous non-diffusive properties (i.e., rock type or composition) in geodynamic problems. In this method, Lagrangian points carrying compositional information are advected with the ambient velocity field on an Eulerian grid. However, velocity interpolation from grid points to marker locations is often performed without considering the divergence of the velocity field at the interpolated locations (i.e., non-conservative). Such interpolation schemes can induce non-physical clustering of markers when strong velocity gradients are present (Journal of Computational Physics 166:218-252, 2001) and this may, eventually, result in empty grid cells, a serious numerical violation of the marker-in-cell method. To remedy this at low computational costs, Jenny et al. (Journal of Computational Physics 166:218-252, 2001) and Meyer and Jenny (Proceedings in Applied Mathematics and Mechanics 4:466-467, 2004) proposed a simple, conservative velocity interpolation scheme for 2-D staggered grid, while Wang et al. (Geochemistry, Geophysics, Geosystems 16(6):2015-2023, 2015) extended the formulation to 3-D finite element methods. Here, we adapt this formulation for 3-D staggered grids (correction interpolation) and we report on the quality of various velocity interpolation methods for 2-D and 3-D staggered grids. We test the interpolation schemes in combination with different advection schemes on incompressible Stokes problems with strong velocity gradients, which are discretized using a finite difference method. Our results suggest that a conservative formulation reduces the dispersion and clustering of markers, minimizing the need of unphysical marker control in geodynamic models.

  16. On the Quality of Velocity Interpolation Schemes for Marker-in-Cell Method and Staggered Grids

    NASA Astrophysics Data System (ADS)

    Pusok, Adina E.; Kaus, Boris J. P.; Popov, Anton A.

    2017-03-01

    The marker-in-cell method is generally considered a flexible and robust method to model the advection of heterogenous non-diffusive properties (i.e., rock type or composition) in geodynamic problems. In this method, Lagrangian points carrying compositional information are advected with the ambient velocity field on an Eulerian grid. However, velocity interpolation from grid points to marker locations is often performed without considering the divergence of the velocity field at the interpolated locations (i.e., non-conservative). Such interpolation schemes can induce non-physical clustering of markers when strong velocity gradients are present (Journal of Computational Physics 166:218-252, 2001) and this may, eventually, result in empty grid cells, a serious numerical violation of the marker-in-cell method. To remedy this at low computational costs, Jenny et al. (Journal of Computational Physics 166:218-252, 2001) and Meyer and Jenny (Proceedings in Applied Mathematics and Mechanics 4:466-467, 2004) proposed a simple, conservative velocity interpolation scheme for 2-D staggered grid, while Wang et al. (Geochemistry, Geophysics, Geosystems 16(6):2015-2023, 2015) extended the formulation to 3-D finite element methods. Here, we adapt this formulation for 3-D staggered grids (correction interpolation) and we report on the quality of various velocity interpolation methods for 2-D and 3-D staggered grids. We test the interpolation schemes in combination with different advection schemes on incompressible Stokes problems with strong velocity gradients, which are discretized using a finite difference method. Our results suggest that a conservative formulation reduces the dispersion and clustering of markers, minimizing the need of unphysical marker control in geodynamic models.

  17. Atmospheric Sulphur Archives in Tree Rings: a First Comparison With Speleothems

    NASA Astrophysics Data System (ADS)

    Fairchild, I. J.; Wynn, P. M.; Baker, A.; Hartland, A.; Loader, N. J.; Lageard, J. A.; Thomas, P.; Frisia, S.; Susini, J.

    2007-12-01

    The high atmospheric loading of sulphur pollutants during the 20th century is recorded in archives such as ice cores, archived soils, and some peats. In karstic settings, both trees and speleothems offer proxy records capable of encoding environmental information and our work demonstrates how sulphur is encoded in these archives. Recent work by others (Kawamura et al., 2005, Environmental Science and Technology) on two Japanese tree species has demonstrated that they preserve S concentration and isotopic archives broadly consistent with 20th century atmospheric variations. Frisia et al. (2005, Earth and Planetary Science Letters) first demonstrated the preservation of secular atmospheric sulphur records as carbonate-associated sulphate (CAS) in speleothem calcite, but at the forested alpine Ernesto site (NE Italy) it was noted that there was a lagged response in the speleothem compared with the atmosphere. Our new study of sulphur and oxygen isotopes in sulphate in atmospheric precipitation and cave dripwaters demonstrates that this lag is associated with the mineralization of sulphate in organic form followed by re-oxidation to sulphate leading to a resetting of the sulphate oxygen signal. The speleothems themselves show pronounced annual cycles in sulphate, despite the constant level of sulphate in dripwater. New experiments on sulphate incorporation in calcite precipitated at rates comparable to those in the cave system demonstrates that the main control is the pH of the system, which is modulated by seasonal variations in the PCO2 of the cave air. A study of S distribution and concentration within two tree species Picea abies and Abies alba from close to the Ernesto site has been made by a combination of synchrotron micro-XRF and NEXAFS and high mass-resolution ICP-MS analysis. Resin was removed from the tree samples before analysis since it is likely to be associated with element mobility. XRF mapping clearly demonstrates enhanced levels of S in the primary

  18. Is the Y chromosome disappearing?--both sides of the argument.

    PubMed

    Griffin, Darren K

    2012-01-01

    On August 31, 2011 at the 18th International Chromosome Conference in Manchester, Jenny Graves took on Jenn Hughes to debate the demise (or otherwise) of the mammalian Y chromosome. Sex chromosome evolution is an example of convergence; there are numerous examples of XY and ZW systems with varying degrees of differentiation and isolated examples of the Y disappearing in some lineages. It is agreed that the Y was once genetically identical to its partner and that the present-day human sex chromosomes retain only traces of their shared ancestry. The euchromatic portion of the male-specific region of the Y is ~1/6 of the size of the X and has only ~1/12 the number of genes. The big question however is whether this degradation will continue or whether it has reached a point of equilibrium. Jenny Graves argued that the Y chromosome is subject to higher rates of variation and inefficient selection and that Ys (and Ws) degrade inexorably. She argued that there is evidence that the Y in other mammals has undergone lineage-specific degradation and already disappeared in some rodent lineages. She also pointed out that there is practically nothing left of the original human Y and the added part of the human Y is degrading rapidly. Jenn Hughes on the other hand argued that the Y has not disappeared yet and it has been around for hundreds of millions of years. She stated that it has shown that it can outsmart genetic decay in the absence of "normal" recombination and that most of its genes on the human Y exhibit signs of purifying selection. She noted that it has added at least eight different genes, many of which have subsequently expanded in copy number, and that it has not lost any genes since the human and chimpanzee diverged ~6 million years ago. The issue was put to the vote with an exact 50/50 split among the opinion of the audience; an interesting (though perhaps not entirely unexpected) skew however was noted in the sex ratio of those for and against the notion.

  19. Cosmogenic exposure-age chronologies of Pinedale and Bull Lake glaciations in greater Yellowstone and the Teton Range, USA

    USGS Publications Warehouse

    Licciardi, J.M.; Pierce, K.L.

    2008-01-01

    We have obtained 69 new cosmogenic 10Be surface exposure ages from boulders on moraines deposited by glaciers of the greater Yellowstone glacial system and Teton Range during the middle and late Pleistocene. These new data, combined with 43 previously obtained 3He and 10Be ages from deposits of the northern Yellowstone outlet glacier, establish a high-resolution chronology for the Yellowstone-Teton mountain glacier complexes. Boulders deposited at the southern limit of the penultimate ice advance of the Yellowstone glacial system yield a mean age of 136??13 10Be ka and oldest ages of ???151-157 10Be ka. These ages support a correlation with the Bull Lake of West Yellowstone, with the type Bull Lake of the Wind River Range, and with Marine Isotope Stage (MIS) 6. End moraines marking the maximum Pinedale positions of outlet glaciers around the periphery of the Yellowstone glacial system range in age from 18.8??0.9 to 16.5??1.4 10Be ka, and possibly as young as 14.6??0.7 10Be ka, suggesting differences in response times of the various ice-cap source regions. Moreover, all dated Pinedale terminal moraines in the greater Yellowstone glacial system post-date the Pinedale maximum in the Wind River Range by ???4-6 kyr, indicating a significant phase relationship between glacial maxima in these adjacent ranges. Boulders on the outermost set and an inner set of Pinedale end moraines enclosing Jenny Lake on the eastern Teton front yield mean ages of 14.6??0.7 and 13.5??1.1 10Be ka, respectively. The outer Jenny Lake moraines are partially buried by outwash from ice on the Yellowstone Plateau, hence their age indicates a major standstill of an expanded valley glacier in the Teton Range prior to the Younger Dryas, followed closely by deglaciation of the Yellowstone Plateau. These new glacial chronologies are indicative of spatially variable regional climate forcing and temporally complex patterns of glacier responses in this region of the Rocky Mountains during the Pleistocene

  20. Corrective Action Decision Document for Corrective Action Unit 536: Area 3 Release Site, Nevada Test Site, Nevada, Revision 0 with Errata

    SciTech Connect

    Boehlecke, Robert

    2004-11-01

    This Corrective Action Decision Document (CADD) has been prepared for Corrective Action Unit (CAU) 536: Area 3 Release Site, Nevada Test Site (NTS), Nevada, in accordance with the Federal Facility Agreement and Consent Order (FFACO) that was agreed to by the State of Nevada, the U.S. Department of Energy (DOE), and the U.S Department of Defense (FFACO, 1996). The NTS is approximately 65 miles (mi) northwest of Las Vegas, Nevada (Figure 1-1). Corrective Action Unit 536 is comprised of a single Corrective Action Site (CAS), 03-44-02, Steam Jenny Discharge, and is located in Area 3 of the NTS (Figure 1-2). The CAU was investigated in accordance with the Corrective Action Investigation Plan (CAIP) and Record of Technical Change (ROTC) No. 1 (NNSA/NV, 2003). The CADD provides or references the specific information necessary to support the recommended corrective action alternative selected to complete closure of the site. The CAU 536, Area 3 Release Site, includes the Steam Jenny Discharge (CAS 03-44-02) that was historically used for steam cleaning equipment in the Area 3 Camp. Concerns at this CAS include contaminants commonly associated with steam cleaning operations and Area 3 Camp activities that include total petroleum hydrocarbons (TPH), unspecified solvents, radionuclides, metals, and polychlorinated biphenyls (PCBs). The CAIP for Corrective Action Unit 536: Area 3 Release Site, Nevada Test Site, Nevada (NNSA/NV, 2003), provides additional information relating to the history, planning, and scope of the investigation; therefore, it will not be repeated in this CADD. This CADD identifies potential corrective action alternatives and provides a rationale for the selection of a recommended corrective action alternative for the CAS within CAU 536. The evaluation of corrective action alternatives is based on process knowledge and the results of the investigative activities conducted in accordance with the CAIP (NNSA/NV, 2003) that was approved prior to the start of the

  1. Historical advances in the study of global terrestrial soil organic carbon sequestration.

    PubMed

    Feller, C; Bernoux, M

    2008-01-01

    This paper serves two purposes: it provides a summarized scientific history of carbon sequestration in relation to the soil-plant system and gives a commentary on organic wastes and SOC sequestration. The concept of soil organic carbon (SOC) sequestration has its roots in: (i) the experimental work of Lundegårdh, particularly his in situ measurements of CO2 fluxes at the soil-plant interface (1924, 1927, 1930); (ii) the first estimates of SOC stocks at the global level made by Waksman [Waksman, S.A., 1938. Humus. Origin, Chemical Composition and Importance in Nature, second ed. revised. Williams and Wilkins, Baltimore, p. 526] and Rubey [Rubey, W.W., 1951. Geologic history of sea water. Bulletin of the Geological Society of America 62, 1111-1148]; (iii) the need for models dealing with soil organic matter (SOM) or SOC dynamics beginning with a conceptual SOM model by De Saussure (1780-1796) followed by the mathematical models of Jenny [Jenny, H., 1941. Factors of Soil Formation: a System of Quantitative Pedology. Dover Publications, New York, p. 288], Hénin and Dupuis [Hénin, S., Dupuis, M., 1945. Essai de bilan de la matière organique. Annales d'Agronomie 15, 17-29] and more recently the RothC [Jenkinson, D.S., Rayner, J.H., 1977. The turnover of soil organic matter in some of the Rothamsted classical experiments. Soil Science 123 (5), 298-305] and Century [Parton, W.J., Schimel, D.S., Cole, C.V., Ojima, D.S., 1987. Analysis of factors controlling soil organic matter levels in great plains grasslands. Soil Science Society of America Journal 51 (5), 1173-1179] models. The establishment of a soil C sequestration balance is not straightforward and depends greatly on the origin and the composition of organic matter that is to be returned to the system. Wastes, which are important sources of organic carbon for soils, are taken as an example. For these organic materials the following factors have to be considered: the presence or absence of fossil C, the potential

  2. Gamete ripening and hormonal correlates in three strains of lake trout

    USGS Publications Warehouse

    Foster, N.R.; O'Connor, D.V.; Schreck, C.B.

    1993-01-01

    In our 2-year laboratory study of hatchery-reared adult lake trout Salvelinus namaycush of the Seneca Lake, Marquette (Lake Superior Lean), and Jenny Lake strains, we compared gamete ripening times and changes in plasma concentrations of seven hormones. If interstrain differences in these traits were found, such differences might help explain the apparent failure of stocked fish of these strains to develop large, naturally reproducing populations in the Great Lakes. The complex temporal changes in plasma hormone levels that occur during sexual maturation in lake trout have not been previously described. We detected little evidence of temporal isolation that would prevent interbreeding among the three strains. Strain had no effect on ovulation date (OD) in either year. Strain did not affect spermiation onset date (SOD) in year 1 but did in year 2, when the mean SOD of Jenny Lake males was earlier than that of Seneca Lake males but not different from that of Marquette males. Hormonal data were normalized around ODs for individual females and SODs for individual males. In females, estradiol-17β (E2) was highest 8 weeks before the OD; the highest testosterone (T) level occurred 6 weeks before the OD, and the next highest level occurred simultaneously with the highest level of 11-ketotestosterone (11-KT) 2 weeks before the OD. Plasma levels of 17∝-hydroxy-20β-dihydroprogesterone (DHP) peaked 1 week before the OD, then abruptly declined immediately after. Cortisol (F), triiodothyronine (T3), and thyroxine (T4) were highly variable, but F was the only hormone that showed no trend with week in either year. In males, plasma E2 levels were highest 3 weeks before the SOD, highest levels of T and of 11-KT occurred simultaneously 2 weeks after the SOD, and DHP peaked 5 weeks after the SOD and 3 weeks after the highest levels of T and 11-KT. As in females, plasma levels of F, T3, and T4 were highly variable, and F was the only hormone that showed no trend with week in

  3. The Arctic Circle

    NASA Astrophysics Data System (ADS)

    McDonald, Siobhan

    2016-04-01

    My name is Siobhan McDonald. I am a visual artist living and working in Dublin. My studio is based in The School of Science at University College Dublin where I was Artist in Residence 2013-2015. A fascination with time and the changeable nature of landmass has led to ongoing conversations with scientists and research institutions across the interweaving disciplines of botany, biology and geology. I am developing a body of work following a recent research trip to the North Pole where I studied the disappearing landscape of the Arctic. Prompted by my experience of the Arctic shelf receding, this new work addresses issues of the instability of the earth's materiality. The work is grounded in an investigation of material processes, exploring the dynamic forces that transform matter and energy. This project combines art and science in a fascinating exploration of one of the Earth's last relatively untouched wilderness areas - the High Arctic to bring audiences on journeys to both real and artistically re-imagined Arctic spaces. CRYSTALLINE'S pivotal process is collaboration: with The European Space Agency; curator Helen Carey; palaeontologist Prof. Jenny McElwain, UCD; and with composer Irene Buckley. CRYSTALLINE explores our desire to make corporeal contact with geological phenomena in Polar Regions. From January 2016, in my collaboration with Jenny McElwain, I will focus on the study of plants and atmospheres from the Arctic regions as far back as 400 million years ago, to explore the essential 'nature' that, invisible to the eye, acts as imaginary portholes into other times. This work will be informed by my arctic tracings of sounds and images recorded in the glaciers of this disappearing frozen landscape. In doing so, the urgencies around the tipping of natural balances in this fragile region will be revealed. The final work will emerge from my forthcoming residency at the ESA in spring 2016. Here I will conduct a series of workshops in ESA Madrid to work with

  4. On Russian concepts of Soil Memory - expansion of Dokuchaev's pedological paradigm

    NASA Astrophysics Data System (ADS)

    Tsatskin, A.

    2012-04-01

    Having developed from Dokuchaev's research on chernosem soils on loess, the Russian school of pedology traditionally focused on soils as essential component of landscape. Dokuchaev's soil-landscape paradigm (SLP) was later considerably advanced and expanded to include surface soils on other continents by Hans Jenny. In the 1970s Sokolov and Targulian in Russia introduced the new term of soil memory as an inherent ability of soils to memorize in its morphology and properties the processes of earlier stages of development. This understanding was built upon ideas of soil organizational hierarchy and different rates of specific soil processes as proposed by Yaalon. Soil memory terminology became particularly popular in Russia which is expressed in the 2008 multi-author monograph on soil memory. The Soil Memory book edited by Targulian and Goryachkin and written by 34 authors touches upon the following themes: General approaches (Section 1), Mineral carriers of soil memory (Section 2), Biological carriers of soil memory (section 3) and Anthropogenic soil memory (section 4). The book presents an original account on different new interdisciplinary projects on Russian soils and represents an important contribution into the classical Dokuchaev-Jenny SL paradigm. There is still a controversy as to in what way the Russian term soil memory is related to western terms of soil as a record or archive of earlier events and processes during the time of soil formation. Targulian and Goryachkin agree that all of the terms are close, albeit not entirely interchangeable. They insist that soil memory may have a more comprehensive meaning, e.g. applicable to such complex cases when certain soil properties whose origin is currently ambiguous cannot provide valid environmental reconstructions or dated by available dating techniques. Anyway, not terminology is the main issue. The Russian soil memory concept advances the frontiers of pedology by deepening the time-related soil functions and

  5. An engineering-economic analysis of combined heat and power technologies in a (mu)grid application

    SciTech Connect

    Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

    2002-03-01

    This report describes an investigation at Ernesto Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) of the potential for coupling combined heat and power (CHP) with on-site electricity generation to provide power and heating, and cooling services to customers. This research into distributed energy resources (DER) builds on the concept of the microgrid (mGrid), a semiautonomous grouping of power-generating sources that are placed and operated by and for the benefit of its members. For this investigation, a hypothetical small shopping mall (''Microgrid Oaks'') was developed and analyzed for the cost effectiveness of installing CHP to provide the mGrid's energy needs. A mGrid consists of groups of customers pooling energy loads and installing a combination of generation resources that meets the particular mGrid's goals. This study assumes the mGrid is seeking to minimize energy costs. mGrids could operate independently of the macrogrid (the wider power network), but they are usually assumed to be connected, through power electronics, to the macrogrid. The mGrid in this study is assumed to be interconnected to the macrogrid, and can purchase some energy and ancillary services from utility providers.

  6. Variations in atmospheric sulphate recorded in stalagmites by synchrotron micro-XRF and XANES analyses [rapid communication

    NASA Astrophysics Data System (ADS)

    Frisia, Silvia; Borsato, Andrea; Fairchild, Ian J.; Susini, Jean

    2005-07-01

    We report here the first speleothem time-series of the variability of sulphate, a species whose abundance in catchments is strongly influenced by atmospheric anthropogenic and volcanic sources. Annually-resolved archives of S, Mg, Si and P were generated by applying synchrotron radiation micro X-Ray Fluorescence (XRF) to two speleothems from different sites in northern Italy. X-ray absorption-edge spectrometry proves that the S is in the form of sulphate and XRF mapping demonstrates that S is within calcite and enriched zones are predominantly as layers. A post-1850 A.D. record from the Ernesto cave shows a substantial rise in sulphate, interpreted as reflecting the largely anthropogenically-forced variation of sulphate of the atmospheric boundary layer, moderated by some ecosystem storage. Analysis of the circa 5.2 to circa 5.0 ka interval of a speleothem from Savi cave, where ecosystem retention of S is likely to have been minimal, shows a spiky sulphate record, resembling that of ice cores. A series of sulphate peaks suggest that multiple volcanic sulphate aerosol emissions at that time. This probably enhanced summer temperature cooling thus favouring the preservation of the human mummy of Neolithic-Copper age, the "Iceman" on the watershed between Italy and Austria. Both examples illustrate the power of speleothems to record atmospheric sulphate variability.

  7. Mygalomorph Spider Community of a Natural Reserve in a Hilly System in Central Argentina

    PubMed Central

    Ferretti, Nelson; Pompozzi, Gabriel; Copperi, Sofia; Pérez-Miles, Fernando; González, Alda

    2012-01-01

    The diversity, abundance, spatial distribution, and phenology of the mygalomorph spider community in the “Ernesto Tornquist” Strict Nature Reserve were analyzed in this study. Located in southwestern Buenos Aires, Argentina, the Reserve is representative of the Ventania system, which is a sigmoidal mountain belt 180 km in length. This exceptional hilly ecosystem is home for many endemic species and rich native fauna and flora. Spider abundance was sampled monthly from October 2009 to October 2010 by hand capture and pitfall traps on grassland slopes. The species recorded in the study area were: Actinopus sp.1 (Actinopodidae); Grammostola vachoni and Plesiopelma longisternale (Theraphosidae); Acanthogonatus centralis (Nemesiidae); and Mecicobothrium thorelli (Mecicobothriidae). Grammostola vachoni and Acanthogonatus centralis were the dominant species in hand capture and pitfall traps, respectively. The seasonal variation, diversity, and abundance of the mygalomorph community are analyzed and discussed here. The Mygalomorphae of the Ventania system comprises an important group of sedentary and cryptozoic spiders that seem to be highly dependent on habitat type and environmental factors. PMID:22947032

  8. Solar driven climate changes recorded in Holocene alpine speleothems

    NASA Astrophysics Data System (ADS)

    Frisia, S.; Borsato, A.; Preto, N.; McDermott, F.

    2003-04-01

    Inter-annual variations in the growth rate of three annually laminated speleothems from Grotta di Ernesto, an alpine cave located at 1160 m a.s.l. in northern Italy, reveal significant periodicities at ca. 1/11 and 1/22 cycles/yr, related to changes in solar irradiance. Additional frequency components may be related to the influence of NAO/AO mode changes. In the late Holocene, reduced calcite deposition during historic minima of solar output is indicative of the influence of solar forcing on Alpine climate and environment. Annual growth laminae thickness, controlled by cave drip-water supersaturation with respect to calcite, primarily reflects changes in soil pCO_2 production modulated by incoming solar radiation. The preservation of high-frequency signals, and the rapid response of speleothem climate proxy series to changes in solar radiation, favor atmospheric amplification of solar variability, rather than mechanisms involving changes in oceanic circulation. In the early- to mid-Holocene, only the lower frequency components of solar variability are preserved. Periods of reduced calcite deposition roughly correspond to the ca. 10^3-yrs-scale cycles of North Atlantic drift-ice records. Lowest growth rates are recorded at about 3200 and 6800 years BP. If the lamina thickness-climate relationships assessed for the Recent (through present-day monitoring, and by correlation with 200 years of instrumental records) held also for the mid and early Holocene, these episodes were characterized by very cold winters and relatively dry summers.

  9. Grips and ties: agency, uncertainty, and the problem of suffering in North Karelia.

    PubMed

    Honkasalo, Marja-Liisa

    2009-03-01

    In medical anthropological research, the question of suffering has been a topic of salient interest mostly from two theoretical viewpoints: those of endurance and of agency. The concept "suffering" derives its origins from two etymological roots, those of suffering-souffrance-sofferanza and of misery-misère-miseria. According to the first approach, that of "endurance" and founded largely on Judeo-Christian theology, suffering is regarded as an existential experience at the borders of human meaning making. The question then is: how to endure, how to suffer? The latter view, that of "agency," follows the Enlightenment, and later the Marxist view on mundane suffering, misery, and the modern question of how to avoid or diminish it. This article follows the lines of the second approach, but my aim is also to try to build a theoretical bridge between the two. I ask whether agency would be understood as a culturally shared and interpreted modes of enduring, and if so, which conceptual definition of agency applies in this context? I theorize the relationship between suffering and agency using Ernesto de Martino's notion la crisi della presenza. In line with Pierre Bourdieu, I think that in people's lives, there may be sufferings in a plural form, as a variety of sufferings. The article is based on a one-year long fieldwork in Finnish North Karelia.

  10. Inhomogeneous magnetization reversal on vicinal surfaces

    NASA Astrophysics Data System (ADS)

    Hyman, R. A.; Stiles, M. D.; Zangwill, A.

    1998-03-01

    We report numerical and analytic results for a model of magnetization reversal in single-crystal vicinal ultrathin films with in-plane magnetization. We model the vicinality by the inclusion of equally spaced infinitely long step edges separating flat terraces. Inhomogeneous magnetization reversal occurs because the intrinsic four-fold anisotropy of the terraces is augmented by uniaxial anisotropy localized at the step edges. The reversal process is a combination of domain nucleation at step edges, depinning due to domain wall interactions, and coherent rotation in the center of flat terraces. Hysteresis curves are calculated as a function of terrace length and exhibit two symmetrically shifted loops in qualitative agreement with experiments(R.K. Kawakami, Ernesto J.Escorcia-Aparicio, and Z.Q. Qui, Phys. Rev. Lett. 77, 2570 (1996), W. Weber, C.H. Back, A. Bischof, Ch. Wursch, R. Allenspach, Phys. Rev. Lett. 76, 1940 (1996)). In the limits of small and large miscut angle, simple analytic formula for the hysteretic jump fields are derived that agree well with our numerical work.

  11. Skull Base Meningiomas and Cranial Nerves Contrast Using Sodium Fluorescein: A New Application of an Old Tool.

    PubMed

    da Silva, Carlos Eduardo; da Silva, Vinicius Duval; da Silva, Jefferson Luis Braga

    2014-08-01

    Objective The identification of cranial nerves is one of the most challenging goals in the dissection of skull base meningiomas. The authors present an application of sodium fluorescein (SF) in skull base meningiomas with the purpose of improving the identification of cranial nerves. Design A prospective study within-subjects design. Setting Hospital Ernesto Dornelles, Porto Alegre, Brazil. Participants Patients with skull base meningiomas. Main Outcomes Measures Cranial nerve identification. Results The group of nine meningiomas was composed of one cavernous sinus, three petroclival, one tuberculum sellae, two sphenoid wing, one olfactory groove, and one temporal floor meningioma. The SF enhancement in all tumors was strong, and the contrast with cranial nerves clearly evident. There were one definite olfactory nerve deficit, one transient abducens deficit, and one definite hemiparesis. All lesions were resected (Simpson grades 1 and 2). The analysis of the difference of the delta SF wavelength between the meningiomas and cranial nerve contrast was performed by the Wilcoxon signed rank test and showed p = 0.011. Conclusions The contrast between the enhanced meningiomas and cranial nerves was evident and assisted in the visualization and microsurgical dissection of these structures. The anatomical preservation of these structures was improved using the contrast.

  12. Mygalomorph spider community of a natural reserve in a hilly system in central Argentina.

    PubMed

    Ferretti, Nelson; Pompozzi, Gabriel; Copperi, Sofia; Pérez-Miles, Fernando; González, Alda

    2012-01-01

    The diversity, abundance, spatial distribution, and phenology of the mygalomorph spider community in the "Ernesto Tornquist" Strict Nature Reserve were analyzed in this study. Located in southwestern Buenos Aires, Argentina, the Reserve is representative of the Ventania system, which is a sigmoidal mountain belt 180 km in length. This exceptional hilly ecosystem is home for many endemic species and rich native fauna and flora. Spider abundance was sampled monthly from October 2009 to October 2010 by hand capture and pitfall traps on grassland slopes. The species recorded in the study area were: Actinopus sp.1 (Actinopodidae); Grammostola vachoni and Plesiopelma longisternale (Theraphosidae); Acanthogonatus centralis (Nemesiidae); and Mecicobothrium thorelli (Mecicobothriidae). Grammostola vachoni and Acanthogonatus centralis were the dominant species in hand capture and pitfall traps, respectively. The seasonal variation, diversity, and abundance of the mygalomorph community are analyzed and discussed here. The Mygalomorphae of the Ventania system comprises an important group of sedentary and cryptozoic spiders that seem to be highly dependent on habitat type and environmental factors.

  13. Who and What Does Involvement Involve? A Multi-Sited Field Study of Involvement of Relatives in Danish Psychiatry.

    PubMed

    Oute, Jeppe; Petersen, Anders; Huniche, Lotte

    2015-01-01

    This article gives an account of aspects of a multi-sited field study of involvement of relatives in Danish psychiatry. By following metaphors of involvement across three sites of the psychiatric system-a family site, a clinical site and a policy site-the first author (J.O.) investigated how, and on what grounds, involvement of relatives is perceived in Danish psychiatry. Paradoxically, the current understanding of involvement of relatives fails to take into consideration the perspectives of the relatives per se and families that were being studied. By analyzing involvement from a discourse theoretical perspective laid out by Ernesto Laclau and Chantal Mouffe, the aim of this study is to show how the dominant discourse about involvement at the political and clinical sites is constituted by understandings of mentally ill individuals and by political objectives of involvement. The analysis elucidates how a psycho-ideological discourse positions the mentally ill person as weak, incapable, and ineffective. By contrast, the supporting relative is positioned as a strong, capable, and effective co-therapist. Furthermore, the analysis considers how this dominant discourse of involvement is constituted by a broader discourse of neoliberalism and market orientation, which justifies involvement as a subtle institutionalization of social control. The article highlights that the role of the relative as a co-therapist may be contested by the families' discourse, which emphasizes issues concerning the responsibility toward the mental health of the ill individual as well as toward the psychological milieu of the family.

  14. Forest Vegetation Monitoring Protocol for National Parks in the North Coast and Cascades Network

    USGS Publications Warehouse

    Woodward, Andrea; Hutten, Karen M.; Boetsch, John R.; Acker, Steven A.; Rochefort, Regina M.; Bivin, Mignonne M.; Kurth, Laurie L.

    2009-01-01

    Plant communities are the foundation for terrestrial trophic webs and animal habitat, and their structure and species composition are an integrated result of biological and physical drivers (Gates, 1993). Additionally, they have a major role in geologic, geomorphologic and soil development processes (Jenny, 1941; Stevens and Walker, 1970). Throughout most of the Pacific Northwest, environmental conditions support coniferous forests as the dominant vegetation type. In the face of anthropogenic climate change, forests have a global role as potential sinks for atmospheric carbon (Goodale and others, 2002). Consequently, knowledge of the status of forests in the three large parks of the NCCN [that is, Mount Rainier (MORA), North Cascades (NOCA), and Olympic (OLYM) National Parks] is fundamental to understanding the condition of Pacific Northwest ecosystems. Diverse climate and soil properties across the Pacific Northwest result in a variety of forest types (Franklin and Dyrness, 1973; Franklin and others, 1988; Henderson and others, 1989, 1992). The mountainous terrain of Mount Rainier, North Cascades, and Olympic National Parks create steep elevational and precipitation gradients within and among the parks: collectively, these parks span from sea level to more than 4,200 m; and include areas with precipitation from 90 to more than 500 cm. The resulting forests range from coastal rainforests with dense understories and massive trees draped with epiphytes; to areas with drought-adapted Ponderosa pines; to high-elevation subalpine fir forests interspersed with meadows just below treeline (table 1). These forests, in turn, are the foundation for other biotic communities constituting Pacific Northwest ecosystems.

  15. W.K.H. Panofsky Prize: The Long Journey to the Higgs Boson: CMS

    NASA Astrophysics Data System (ADS)

    Virdee, Tejinder

    2017-01-01

    There has been a rich harvest of physics from the experiments at the Large Hadron Collider (LHC). In July 2012, the ground-breaking discovery of the Higgs boson was made by the ATLAS and CMS experiments. This boson is a long-sought particle expected from the mechanism for spontaneous symmetry breaking in the electro-weak sector that provides an explanation of how elementary particles acquire mass. The discovery required experiments of unprecedented capability and complexity. This talk, complementing that of Peter Jenni, will trace the background to the search for the Higgs boson at the LHC, the conception, the construction and the operation of the CMS experiment, and its subsequent discovery of the boson. The SM is considered to be a low energy manifestation of a more complete theory - physics beyond the SM is therefore widely anticipated. Selected CMS results will be presented from the search for physics beyond the SM from the 13 TeV Run-2 at the LHC.

  16. COMMITTEES: Quark Matter 2008 Organising and International Advisory Committees

    NASA Astrophysics Data System (ADS)

    2008-10-01

    Organising Committee Madan M Aggarwal (Chandigarh) Jan-e Alam (Kolkata) Convener Arup Bandyopadhyay (Kolkata) Debades Bandyopadhyay (Kolkata) Rahul Basu (Chennai) Rakesh K Bhandari (Kolkata) Anju Bhasin (Jammu) Subhasis Chattopadhyay (Kolkata) Convener Sukalyan Chattopadhyay (Kolkata) Asis Chaudhuri (Kolkata) Premomoy Ghosh (Kolkata) Sanjay Ghosh (Kolkata) Sourendu Gupta (Mumbai) Muhammad Irfan (Aligarh) Durga P Mahapatra (Bhubaneswar) DAmruta Mishra (New Delhi) Ajit K Mohanty (Mumbai) Bedangadas Mohanty (Kolkata) Vaisali Naik (Kolkata) Tapan K Nayak (Kolkata) Convener Sudhir Raniwala (Jaipur) Sourav Sarkar (Kolkata) Bikash Sinha (Kolkata) Chair Dinesh Srivastava (Kolkata) Raghava Varma (Mumbai) Yogendra P Viyogi (Bhubaneswar)Co-chair International Advisory Committee R Aymar,Switzerland Jean Paul Blaizot, France Peter Braun Münzinger, Germany Igor M Dremin, Russia Kari Eskola, Finland Jens Jorgen Gaardhoje,Denmark Rajiv V Gavai, India Hans-Ake Gustaffson, Sweden Hans Gutbrod, Germany Miklos Gyulassy, USA Timothy Hallman, USA Hideki Hamagaki, Japan Tetsuo Hatsuda, Japan Huan-Zhong Huang, USA Barbara Jacak, USA Peter Jenni, Switzerland Taka Kajino, Japan Takeshi Kodama, Brazil T D Lee, USA Peter Levai, Hungary Luciano Maiani, Italy Larry McLerran, USA Berndt Müller, USA Guy Paic, Mexico Sibaji Raha, India Lodovico Riccati, Italy Hans Georg Ritter, USA Helmut Satz, Germany Jurgen Schukraft, Switzerland Yves Schutz, France Edward V Shuryak, USA Johanna Stachel, Germany Horst Stöcker, Germany Itzhak Tserruya, Israel Xin-Nian Wang, USA Bolek Wyslouch, USA Glenn R Young, USA William A Zajc, USA Wen-Long Zhan, China

  17. Are midwater shrimp trapped in the craters of submarine volcanoes by hydrothermal venting?

    NASA Astrophysics Data System (ADS)

    Wishner, Karen F.; Graff, Jason R.; Martin, Joel W.; Carey, S.; Sigurdsson, H.; Seibel, B. A.

    2005-08-01

    The biology of Kick'em Jenny (KEJ) submarine volcano, part of the Lesser Antilles volcanic arc and located off the coast of Grenada in the Caribbean Sea, was studied during a cruise in 2003. Hydrothermal venting and an associated biological assemblage were discovered in the volcanic crater (˜250 m depth). Warm water with bubbling gas emanated through rock fissures and sediments. Shrimp (some of them swimming) were clustered at vents, while other individuals lay immobile on sediments. The shrimp fauna consisted of 3 mesopelagic species that had no prior record of benthic or vent association. We suggest that these midwater shrimp, from deeper water populations offshore, were trapped within the crater during their downward diel vertical migration. It is unknown whether they then succumbed to the hostile vent environment (immobile individuals) or whether they are potentially opportunistic vent residents (active individuals). Given the abundance of submarine arc volcanoes worldwide, this phenomenon suggests that volcanic arcs could be important interaction sites between oceanic midwater and vent communities.

  18. Scurvy and cloudberries: a chapter in the history of nutritional sciences.

    PubMed

    Luca, Luigi M De; Norum, Kaare R

    2011-12-01

    We translated two Latin texts about scurvy. One is by Ambrosius Rhodius, who in 1635 published his doctoral thesis on scurvy. This contains aspects of 16th- and 17th-century folklore medicine. The other is a 1593 letter by Henrik Høyer (Hoierus), a German physician in Bergen, Norway. The letter states that in Norway grew a plant, Chamaemorus Norvegicus, whose berries had curative abilities against scurvy. Rhodius lists symptoms of scurvy and suggests ingestion of fatty and smoked foods as etiological agents. He thought that a malfunction of the spleen was involved in this disease, so that the undigested parts of the chylus perturbed liver function. Plants with curative abilities were "those that abound in volatile salts." He listed seven facilitating causes of scurvy and its therapies. These included blood-letting after laxatives and root extracts. The star of the show was the cloudberry, which had miraculous effects on scurvy patients. Palliative care included a bath containing decoction of brooklime, water cress, mallow, hogweed, roman chamomile, and similar plants. Before bathing, the person was to drink an extract of wormwood, scurvy grass, or elder. As medication for gums and teeth, Rhodius recommended rosemary, hyssop, bistort, sage, nasturtium, waterweed, creeping Jenny, and scurvy grass. He referred to medications described by Albertus, Sennertus, and in antiquity by Hippocrates and Galenus. We discuss the manuscripts by Høyer and Rhodius in light of earlier treatments and opinions about scurvy.

  19. Corrective Action Investigation Plan for Corrective Action Unit 536: Area 3 Release Site, Nevada Test Site, Nevada (Rev. 0 / June 2003), Including Record of Technical Change No. 1

    SciTech Connect

    2003-06-27

    This Corrective Action Investigation Plan contains the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office's approach to collect the data necessary to evaluate corrective action alternatives (CAAs) appropriate for the closure of Corrective Action Unit (CAU) 536: Area 3 Release Site, Nevada Test Site, Nevada, under the Federal Facility Agreement and Consent Order. Corrective Action Unit 536 consists of a single Corrective Action Site (CAS): 03-44-02, Steam Jenny Discharge. The CAU 536 site is being investigated because existing information on the nature and extent of possible contamination is insufficient to evaluate and recommend corrective action alternatives for CAS 03-44-02. The additional information will be obtained by conducting a corrective action investigation (CAI) prior to evaluating CAAs and selecting the appropriate corrective action for this CAS. The results of this field investigation are to be used to support a defensible evaluation of corrective action alternatives in the corrective action decision document. Record of Technical Change No. 1 is dated 3-2004.

  20. The history of women in surgery.

    PubMed

    Wirtzfeld, Debrah A

    2009-08-01

    The history of women in surgery in Western civilization dates to 3500 before common era (BCE) and Queen Shubad of Ur. Ancient history reveals an active role of women in surgery in Egypt, Italy and Greece as detailed in surgical texts of the time. During the middle ages, regulations forbade women from practising surgery unless they assumed their husbands' practices upon their deaths or unless they were deemed fit by a "competent" jury. King Henry VIII proclaimed that "No carpenter, smith, weaver or women shall practise surgery." The modern period of surgery opens with women impersonating men to practise medicine and surgery (Dr. Miranda Stewart). The first female physicians (Dr. Elizabeth Blackwell and Dr. Emily Jennings Stowe) and surgeons (Dr. Mary Edwards Walker and Dr. Jennie Smillie Robertson) in North America found it difficult to obtain residency education after completing medical school. Dr. Jessie Gray was Canada's "First Lady of Surgery" and the first woman to graduate from the Gallie program at the University of Toronto in the 1940s. Currently, the ratio of women in surgical training is far less than that of women in medical school. The reasons that women choose surgery include appropriate role models and intellectual/technical challenge. Lack of mentorship and lifestyle issues are the strongest deterrents. Consideration of a "controllable lifestyle" by surgical administrators will help with the recruitment of women into surgery.

  1. Short communication: Monitoring nutritional quality of Amiata donkey milk: effects of lactation and productive season.

    PubMed

    Martini, Mina; Altomonte, Iolanda; Salari, Federica; Caroli, Anna M

    2014-11-01

    Milk nutritional characteristics are especially interesting when donkey milk is aimed at consumption by children and the elderly. The aim of this study was to monitor the nutritional quality of Amiata donkey milk during lactation and productive season to provide information on the milk characteristics and to study action plans to improve milk yield and quality. Thirty-one pluriparous jennies belonging to the same farm were selected. Individual samples of milk from the morning milking were taken once per month starting from the d 30 of lactation until d 300. Milk yield and dry matter, fat, and ash content were constant throughout the experimental period. Milk total protein content showed a progressive decrease during the first 6 mo of lactation; after this period, the protein percentages remained constant (1.50%). Caseins and lactose were lower until d 60 of lactation and remained constant thereafter. During summer and autumn, milk yield and casein and lactose contents were higher, whereas during the spring season, higher protein and ash contents were found. The percentages of fat and dry matter were stable as were most of the minerals in the milk, except for calcium, which was higher in the spring. In conclusion, Amiata donkey milk was found to be relatively stable during lactation. This is an advantage in terms of the production and trade of a food product with consistent characteristics. The different milk yield and quality during the productive seasons were probably related to better adaptability of the animals to warm and temperate periods.

  2. Adaptive particle-cell algorithm for Fokker-Planck based rarefied gas flow simulations

    NASA Astrophysics Data System (ADS)

    Pfeiffer, M.; Gorji, M. H.

    2017-04-01

    Recently, the Fokker-Planck (FP) kinetic model has been devised on the basis of the Boltzmann equation (Jenny et al., 2010; Gorji et al., 2011). Particle Monte-Carlo schemes are then introduced for simulations of rarefied gas flows based on the FP kinetics. Here the particles follow independent stochastic paths and thus a spatio-temporal resolution coarser than the collisional scales becomes possible. In contrast to the direct simulation Monte-Carlo (DSMC), the computational cost is independent of the Knudsen number resulting in efficient simulations at moderate/low Knudsen flows. In order to further exploit the efficiency of the FP method, the required particle-cell resolutions should be found, and a cell refinement strategy has to be developed accordingly. In this study, an adaptive particle-cell scheme applicable to a general unstructured mesh is derived for the FP model. Virtual sub cells are introduced for the adaptive mesh refinement. Moreover a sub cell-merging algorithm is provided to honor the minimum required number of particles per cell. For assessments, the 70 degree blunted cone reentry flow (Allgre et al., 1997) is studied. Excellent agreement between the introduced adaptive FP method and DSMC is achieved.

  3. 'And next, just for your enjoyment!': sex, technology and the constitution of desire.

    PubMed

    Dowsett, Gary W

    2015-01-01

    In the 1976 sci-fi film Logan's Run, actor Michael York, relaxing in a fetching caftan after a day hunting 'Runners', logs-in to the 'Circuit', a de- and re-materialisation technology that allows those seeking sex to select partners. Logan's first candidate, a young man, is passed over with a smile. The second is co-star Jenny Agutter; she is accepted and we join a sexual ride in the future. Online dating sites such as Gaydar® and RSVP® would seem to have a long way to go to achieve that, and Microsoft™ needs some fast apps development to get us there. Against this background, this paper examines some starting points in our fascination with technosex, long before the Internet, in books and magazines, the creative arts and other media and cultural forms. It focuses upon gay men's contribution to this fascination, and looks at the queering of heterosexuality and the part technology has played in that process. Online technologies are examined, particularly in relation to the 'publicisation' of sexual life and to shifts in sexual identity and practice related to changing processes of sexual objectification, self-objectification and subjectification. Finally, the transformation of sex into health and healthy sex is discussed.

  4. An efficient particle Fokker–Planck algorithm for rarefied gas flows

    SciTech Connect

    Gorji, M. Hossein; Jenny, Patrick

    2014-04-01

    This paper is devoted to the algorithmic improvement and careful analysis of the Fokker–Planck kinetic model derived by Jenny et al. [1] and Gorji et al. [2]. The motivation behind the Fokker–Planck based particle methods is to gain efficiency in low Knudsen rarefied gas flow simulations, where conventional direct simulation Monte Carlo (DSMC) becomes expensive. This can be achieved due to the fact that the resulting model equations are continuous stochastic differential equations in velocity space. Accordingly, the computational particles evolve along independent stochastic paths and thus no collision needs to be calculated. Therefore the computational cost of the solution algorithm becomes independent of the Knudsen number. In the present study, different computational improvements were persuaded in order to augment the method, including an accurate time integration scheme, local time stepping and noise reduction. For assessment of the performance, gas flow around a cylinder and lid driven cavity flow were studied. Convergence rates, accuracy and computational costs were compared with respect to DSMC for a range of Knudsen numbers (from hydrodynamic regime up to above one). In all the considered cases, the model together with the proposed scheme give rise to very efficient yet accurate solution algorithms.

  5. The history of women in surgery

    PubMed Central

    Wirtzfeld, Debrah A.

    2009-01-01

    The history of women in surgery in Western civilization dates to 3500 before common era (BCE) and Queen Shubad of Ur. Ancient history reveals an active role of women in surgery in Egypt, Italy and Greece as detailed in surgical texts of the time. During the middle ages, regulations forbade women from practising surgery unless they assumed their husbands’ practices upon their deaths or unless they were deemed fit by a “competent” jury. King Henry VIII proclaimed that “No carpenter, smith, weaver or women shall practise surgery.” The modern period of surgery opens with women impersonating men to practise medicine and surgery (Dr. Miranda Stewart). The first female physicians (Dr. Elizabeth Blackwell and Dr. Emily Jennings Stowe) and surgeons (Dr. Mary Edwards Walker and Dr. Jennie Smillie Robertson) in North America found it difficult to obtain residency education after completing medical school. Dr. Jessie Gray was Canada’s “First Lady of Surgery” and the first woman to graduate from the Gallie program at the University of Toronto in the 1940s. Currently, the ratio of women in surgical training is far less than that of women in medical school. The reasons that women choose surgery include appropriate role models and intellectual/technical challenge. Lack of mentorship and lifestyle issues are the strongest deterrents. Consideration of a “controllable lifestyle” by surgical administrators will help with the recruitment of women into surgery. PMID:19680519

  6. Rapid Response Measurements of Hurricane Waves and Storm Surge

    NASA Astrophysics Data System (ADS)

    Gravois, U.

    2010-12-01

    Andrew (1992), Katrina (2005), and Ike (2008) are recent examples of extensive damage that resulted from direct hurricane landfall. Some of the worst damages from these hurricanes are caused by wind driven waves and storm surge flooding. The potential for more hurricane disasters like these continues to increase as a result of population growth and real estate development in low elevation coastal regions. Observational measurements of hurricane waves and storm surge play an important role in future mitigation efforts, yet permanent wave buoy moorings and tide stations are more sparse than desired. This research has developed a rapid response method using helicopters to install temporary wave and surge gauges ahead of hurricane landfall. These temporary installations, with target depths from 10-15 m and 1-7 km offshore depending on the local shelf slope, increase the density of measurement points where the worst conditions are expected. The method has progressed to an operational state and has successfully responded to storms Ernesto (2006), Noel (2007), Fay (2008), Gustav (2008), Hanna (2008) and Ike (2008). The temporary gauges are pressure data loggers that measure at 1 Hz continuously for 12 days and are post-processed to extract surge and wave information. For the six storms studied, 45 out of 49 sensors were recovered by boat led scuba diver search teams, with 43 providing useful data for an 88 percent success rate. As part of the 20 sensor Hurricane Gustav response, sensors were also deployed in lakes and bays inLouisiana, east of the Mississippi river delta. Gustav was the largest deployment to date. Generally efforts were scaled back for storms that were not anticipated to be highly destructive. For example, the cumulative total of sensors deployed for Ernesto, Noel, Fay and Hanna was only 20. Measurement locations for Gustav spanned over 800 km of exposed coastline from Louisiana to Florida with sensors in close proximity to landfall near Cocodrie

  7. Science Fiction In Naples In The Middle Of The 19th Century

    NASA Astrophysics Data System (ADS)

    Capaccioli, Massimo; Cirella, Emilia Olostro; Stendardo, Enrica; Virgilio, Nicla

    Astronomer, intellectual, passionate patriot, and refined humanist, Ernesto Capocci Belmonte (Picinisco, May 31, 1798 - Naples, January 6, 1864) was a prominent figure of the scientific, cultural, and political life in Naples around the middle of the 19th century. He acquired international recognition for his studies on the orbits of comets and, since 1833, he was named director of the newly built Osservatorio Astronomico in Capodimonte: A prestigious position that he lost for political retaliation as a result of his participation in the movement against the Bourbon rulers in 1848, but which he regained in 1860 upon the arrival in Naples of Giuseppe Garibaldi. An intuitive and open-minded scholar, he looked always at the contemporary experiences in Europe and, as a scientist and cultivated human being, he sought to serve the community by enthusiastically devoting himself also to education and public outreach. He developed clear interests in literature and, as a forerunner, he dared to tackle the genre of science fiction. His short novel Relazione del viaggio alla Luna fatto da una donna nell'anno di grazia 2057 (Report of the Trip to the Moon done by a Woman in the Year of our Lord 2057), written in the period of his exile from the Observatory and practically given up as lost until a private copy was found in the library of one of Capocci's descendants, offers an interesting overview of astronomical knowledge and taste for the elegance in writing, and gives an unusual, and often ironic, viewpoint on the situation of sciences in Naples in the middle of the 19th century.

  8. PREFACE: Third Congress on Materials Science and Engineering (CNCIM-Mexico 2012)

    NASA Astrophysics Data System (ADS)

    de Coss, Romeo; Murrieta-Hernández, Gabriel; Aguayo-González, Aarón; Rubio-Rosas, Efraín; Chigo-Anota, Ernesto; Vigueras-Santiago, Enrique

    2013-06-01

    ónoma de Puebla Ciudad Universitaria, Col. San Manuel, C.P. 72570, Puebla, Puebla, México efrain.rubio@cuv.buap.mx Ernesto Chigo-Anota Benemérita Universidad Autónoma de Puebla Ciudad Universitaria, Col. San Manuel, C.P. 72570, Puebla, Puebla, México ernesto.chigo@correo.buap.mx Enrique Vigueras-Santiago Universidad Autónoma del Estado de México Instituto Literario No. 100, Col. Centro 50000, Toluca, Edo. de México, México vigueras@uaemex.mx Session Chairs Gabriel Canto Santana, Universidad Autónoma de Campeche. Enrique Vigueras Santiago, Universidad Autónoma del Estado de México. César Cab, Universidad Autónoma de Yucatán. Alejandro ávila Ortega, Universidad Autónoma de Yucatán. Jesús Barrón Zambrano, Universidad Autónoma de Yucatán. Maritza de Coss, Universidad Autónoma de Yucatán. Jorge A. Tapia González, Universidad Autónoma de Yucatán. David Muñoz Rodríguez, Universidad Autónoma de Yucatán. Mario Pérez Cortes, Universidad Autónoma de Yucatán. Jesús García Serrano, Universidad Autónoma del Estado de Hidalgo. Rubén Arturo Medina Esquivel, Universidad Autónoma de Yucatán. César R. Acosta, Universidad Autónoma de Yucatán. Organizing Committee Aarón Aguayo González, Universidad Autónoma de Yucatán. Gabriel Murrieta Hernández, Universidad Autónoma de Yucatán. Alejandro Tapia González, Universidad Autónoma de Yucatán. Cristian Carrera Figueiras, Universidad Autónoma de Yucatán. Heriberto Hernández Cocoletzi, Benemérita Universidad Autónoma de Puebla. Ernesto Chigo Anota, Benemérita Universidad Autónoma de Puebla. Efraín Rubio Rosas, Benemérita Universidad Autónoma de Puebla. Enrique Vigueras Santiago, Universidad Autónoma del Estado de México. Romeo de Coss, Centro de Investigación y de Estudios Avanzados (Cinvestav-Mérida). Organizers: Organizers Sponsors: Sponsors

  9. Nonlinearity Analysis for Efficient Modelling of Long-Term CO2 Storage

    NASA Astrophysics Data System (ADS)

    Li, Boxiao; Benson, Sally; Tchelepi, Hamdi

    2014-05-01

    . Our analysis of the numerical flux theoretically describes the cause of the convergence failures for simulating long-term CO2 storage. This understanding provides useful guidance in designing numerical schemes and nonlinear solvers that overcome the convergence bottlenecks. For example, to reduce the nonlinearity introduced by the two kinks in the presence of capillarity, we modify the method of Cances (2009) to discretize the capillary flux. Consequently, only one kink will occur even for coupled viscous, buoyancy, and heterogeneous capillary forces, and the kink depends only on the upstream saturation of the total velocity. An efficient nonlinear solver that is a significant refinement of the works of Jenny et al. (2009) and Wang and Tchelepi (2013) has also been proposed and demonstrated. References [1] C. Cances. Finite volume scheme for two-phase flows in heterogeneous porous media involving capillary pressure discontinuities. ESAIM:M2AN., 43, 973-1001, (2009). [2] P. Jenny, H.A. Tchelepi, and S.H. Lee. Unconditionally convergent nonlinear solver for hyperbolic conservation laws with S-shaped flux functions. J. Comput. Phys., 228, 7497-7512, (2009). [3] X. Wang and H.A. Tchelepi. Trust-region based solver for nonlinear transport in heterogeneous porous media. J. Comput. Phys., 253, 114-137, (2013).

  10. A 20-ka reconstruction of a Sahelo-Sudanian paleoenvironment using multi-method dating on pedogenic carbonate

    NASA Astrophysics Data System (ADS)

    Diaz, Nathalie; Dietrich, Fabienne; King, Georgina E.; Valla, Pierre G.; Sebag, David; Herman, Frédéric; Verrecchia, Eric P.

    2016-04-01

    Soils can be precious environmental archives as they are open systems resulting from external persistent disturbance, or forcing (Jenny, 1941). Pedogenic carbonate nodules associated with clay-rich soils have been investigated in the Far North region of Cameroon in non-carbonate watersheds (Chad Basin). Nodule bearing soils have mima-like mound morphologies, within stream networks. Such settings raise questions on the processes leading to carbonate precipitation as well as landscape genesis. The mima-like mounds have been identified as degraded Vertisols, resulting from differential erosion induced by a former gilgai micro-relief (Diaz et al., 2016). Non-degraded Vertisols occur in waterlogged areas, located downstream from mima-like mound locations (Braband and Gavaud, 1985). Therefore during a former wetter period Vertisols may have been extended to the mima-like mound areas, followed by a shift toward drier conditions and erosion (Diaz et al., 2016). Consequently, mima-like mounds and associated carbonate nodules are inherited from climatic changes during the Late Pleistocene-Holocene period. The aim of this study is to validate the scenario above using the carbonate nodules collected in a mima-like mound as time archives. Optically stimulated luminescence (OSL) dating of K-feldspars trapped within the nodules is used to assess the deposition time of the soil parent material, composing the mima-like mounds. The carbonate and organic nodule parts have been radiocarbon dated with the aim of assessing the carbonate precipitation age and the age range of soil formation, respectively. Results show that the soil parent material was deposited between 18 ka and 12 ka BP and that the nodules precipitated between 7 ka and 5 ka BP. These results suggest that the deposition occurred during the arid climatic period of the Bossoumian (20 ka to 15 ka BP; Hervieu, 1970) and during the first drier part of the African Humid Period (14.8 ka to 11.5 ka BP; deMenocal et al., 2000

  11. Efficiency of different extenders on cooled semen collected during long and short day length seasons in Martina Franca donkey.

    PubMed

    Contri, Alberto; De Amicis, Ippolito; Veronesi, Maria Cristina; Faustini, Massimo; Robbe, Domenico; Carluccio, Augusto

    2010-07-01

    Artificial insemination with cooled semen is routine in equids because of its good fertility rates and relatively low costs. In several donkey breeds, especially in restricted populations, the use of cooled semen could be seen as the best way of improving reproductive performance and avoiding excessive inbreeding. Furthermore, most jennies have ovulatory estrous throughout the year, and thus, cooled semen could also be used during short day length season. The aims of this study were to evaluate the effects of different extenders on sperm quality during cooling in the Martina Franca breed, and to verify the preservation of cooled semen collected during long day length (May-June) and short day length (November-December) seasons. Three ejaculates were collected at 10-day intervals from each of six jackasses during both May-June and again in November-December time periods. Each ejaculate was cooled in INRA96 or E-Z Mixin at a low cooling rate and evaluated daily over a 120-h preservation time. The results showed a significant extender influence on preservation time in both periods. Semen diluted with INRA96 maintained a progressive motility of 36% and a straightness of 89% at 120h, whereas semen extended with E-Z Mixin had a mean progressive motility of 32% and a straightness of 81% at 48h during the May-June period. Despite having the same initial characteristics, semen collected during the short day length season had a higher rate of decline in semen quality during storage at 5 degrees C with E-Z Mixin.

  12. College readiness for all: the challenge for urban high schools.

    PubMed

    Roderick, Melissa; Nagaoka, Jenny; Coca, Vanessa

    2009-01-01

    Melissa Roderick, Jenny Nagaoka, and Vanessa Coca focus on the importance of improving college access and readiness for low-income and minority students in urban high schools. They stress the aspirations-attainment gap: although the college aspirations of all U.S. high school students, regardless of race, ethnicity, and family income, have increased dramatically over the past several decades, significant disparities remain in college readiness and enrollment. The authors emphasize the need for researchers and policy makers to be explicit about precisely which sets of knowledge and skills shape college access and performance and about how best to measure those skills. They identify four essential sets of skills: content knowledge and basic skills; core academic skills; non-cognitive, or behavioral, skills; and "college knowledge," the ability to effectively search for and apply to college. High schools, they say, must stress all four. The authors also examine different ways of assessing college readiness. The three most commonly recognized indicators used by colleges, they say, are coursework required for college admission, achievement test scores, and grade point averages. Student performance on all of these indicators of readiness reveals significant racial and ethnic disparities. To turn college aspirations into college attainment, high schools and teachers need clear indicators of college readiness and clear performance standards for those indicators. These standards, say the authors, must be set at the performance level necessary for high school students to have a high probability of gaining access to four-year colleges. The standards must allow schools and districts to assess where their students currently stand and to measure their progress. The standards must also give clear guidance about what students need to do to improve. College readiness indicators can be developed based on existing data and testing systems. But districts and states will require new

  13. Growth and survival of stocked lake trout with nuclear cataracts in Lake Ontario

    USGS Publications Warehouse

    Kincaid, Harold L.; Elrod, Joseph H.

    1991-01-01

    Four strains of yearling lake trout Salvelinus namaycush from the 1985 and 1986 year-classes at the Allegheny National Fish Hatchery were evaluated for nuclear cataracts prior to stocking in Lake Ontario in June 1986 and 1987. Lake trout recaptured by bottom trawling from April to August 1987 and 1988 were examined for cataracts. Cataract frequencies in three strains of yearling lake trout at stocking in 1986 and after 14 and 26 months in the lake were: Seneca Lake–35, 24, and 29%; Lake Ontario–32,24, and 42%; and Lake Superior–7,4, and 6%. Cataract frequencies for yearlings at stocking in 1987 and after 2 and 14 months were: Seneca Lake–51, 37, and 51 %; Lake Superior–7,12, and 12%; and Jenny Lake–46,13, and 36%. Cataract frequency was lower (P < 0.05) at capture in three of the six groups recaptured in 1987 and in two of the six groups in 1988. Fish with cataracts in the 1987 recovery had survival ratios of 17–186% after 2 months in the lake and 48–67% after 14 months, compared with normal-eyed fish of the same strain. Nuclear cataract frequency was relatively stable after the first year of lake residency, when equilibrium was achieved between the increased mortality of cataract phenotypes and the rate of cataract development in normal-eyed phenotypes. Within groups, weight and length were not different between healthy fish and fish with cataracts. The absence of growth depression in fish with cataracts and the reduced survival rate suggested that faster growing fish were more susceptible to cataract formation.

  14. Transforming Research in Oceanography through Education, Ethnography and Rapidly Evolving Technologies: An NSF-INSPIRE project.

    NASA Astrophysics Data System (ADS)

    German, C. R.; Croff Bell, K. L.; Pallant, A.; Mirmalek, Z.; Jasanoff, S.; Rajan, K.

    2014-12-01

    This paper will discuss a new NSF-INSPIRE project that brings together research conducted in the fields of Ocean Sciences, Education & Human Resources and Computer and Information Science & Engineering. Specifically, our objective is to investigate new methods by which telepresence can be used to conduct cutting edge research and provide authentic educational experiences to undergraduate students, remotely. We choose to conduct this research in an Oceanographic context for two reasons: first with the move toward smaller research ships in the national Oceanographic research fleet, we anticipate that access to berth space at sea will continue to be at a premium. Any component of traditional oceanographic research that can be ported to shore without loss of effectiveness would be of immediate benefit to the Ocean Sciences. Equally, however, we argue that any improvements to work place and/or education practices that we can identify while delivering research and education from the bottom of the deep ocean should be readily mappable to any other scientific or engineering activities that seek to make use of telepresence in less extreme remote environments. Work on our TREET project, to-date, has included recruitment of 6 early career scientists keen to take advantage of the research opportunity provided, together with two senior science mentors with experience using Telepresence and a cohort of undergraduate students at three of the ECS partner Universities, spanning 4 time zones across the continental US. Following a 12-week synchronous on-line seminar series taught in Spring-Summer 2014, the entire team joined together at the Inner Space Center in Sept-Oct 2014 to participate, virtually, in a cruise of research and exploration to the Kick'Em Jenny underwater volcano and adjacent cold seep sites, conducted by the Ocean Exploration Trust's ROV Hercules aboard the Exploration Vessel Nautilus. Our presentation will include preliminary results from that cruise.

  15. Bathythermal distribution, maturity, and growth of lake trout strains stocked in U.S. waters of Lake Ontario, 1978-1993

    USGS Publications Warehouse

    Elrod, Joseph H.; O'Gorman, Robert; Schneider, Clifford P.

    1996-01-01

    Bathythermal distributions, sexual maturity, and growth of lake trout (Salvelinus namaycush) strains stocked in Lake Ontario were determined for fish collected with trawls and gill nets in 1978-93. The purpose was to augment the basis for deciding which strains to continue stocking in an effort to reestablish a self-sustaining population. The Clearwater Lake (CWL) strain was found in shallower, warmer water than all other strains; the Seneca Lake (SEN) strain was usually shallower than the Jenny Lake (JEN) and Lake Superior (SUP) strains at ages 1 and 2 but was usually deeper at age 3 and older. Depth distribution of the 'Ontario strain'--from gametes of several strains that survived to maturity in Lake Ontario-- was similar to that of the SEN and SUP strains. About half the males matured at age 4 and half the females at age 5; males < 500 mm and females < 600 mm long were rarely mature. Least-sqaures mean lengths and weights of the CWL strain were greater than those of all other strains through age 4. At age 7 and older, CWL and JEN fish were generally smaller than all other strains. Means lengths and weights of males and females of the same age and strain frequently differed at age 4 and older. Growth in weight at age 4 and older was not associated with biomass indices of prey fishes. Differences in growth rates among strains were associated with bathythermal distribution which is a heritable trait. Weight-length regressions differed by year, sex, and stage of maturity but were rarely different among strains. Competition for space appeared to affect condition of large lake trout. Growth rates and maturity schedules provide little basis for recommending stocking one strain in preference to another. Depth ranges of strains overlapped widely, but lake trout occupied only about one-fourth of available bottom habitat. Stocking several strains should be continued to maximize use of sustainable habitat.

  16. Dietary verbascoside supplementation in donkeys: effects on milk fatty acid profile during lactation, and serum biochemical parameters and oxidative markers.

    PubMed

    D'Alessandro, A G; Vizzarri, F; Palazzo, M; Martemucci, G

    2017-03-07

    Various uses of donkeys' milk have been recently proposed for human consumption on the basis of its nutritional characteristics. Improvements in milk fatty acid profile and animal oxidative status can be induced through dietary supplementation of phenolic compounds. The study aimed to evaluate in donkeys the effects of dietary supplementation with verbascoside (VB) on: (i) the fatty acid profile and vitamins A and E contents of milk during a whole lactation, and (ii) blood biochemical parameters and markers of oxidative status of the animals. At foaling, 12 lactating jennies were subdivided into two groups (n 6): control, without VB supplement; VB, receiving a lipid-encapsulated VB supplement. Gross composition, fatty acid profile and vitamins A and E contents in milk were assessed monthly over the 6 months of lactation. Serum total cholesterol, high-density lipoproteins cholesterol and low-density lipoproteins cholesterol, tryglicerides, non-esterified fatty acid, bilirubin, alanine aminotransferase (ALT), aspartate aminotransferase, reactive oxygen metabolites, thiobarbituric acid reactive substances (TBARs), vitamin A and vitamin E were evaluated at 8 days after foaling (D0) and then at D90, D105 and D120 of lactation. In milk, the VB supplementation decreased the saturated fatty acids (P<0.05) and increased the monounsaturated fatty acids (P<0.05), and vitamins A and E (P<0.01) values. On the serum parameters, the VB supplementation decreased total cholesterol (P<0.01), tryglicerides, bilirubin, ALT and TBARs, and increased (P<0.01) vitamin E. In conclusion, the VB dietary supplementation affects the nutritional quality of donkey's milk with a benefit on the oxidative status and serum lipidic profile of the animals.

  17. Tsunami hazard in the Caribbean: Regional exposure derived from credible worst case scenarios

    NASA Astrophysics Data System (ADS)

    Harbitz, C. B.; Glimsdal, S.; Bazin, S.; Zamora, N.; Løvholt, F.; Bungum, H.; Smebye, H.; Gauer, P.; Kjekstad, O.

    2012-04-01

    The present study documents a high tsunami hazard in the Caribbean region, with several thousands of lives lost in tsunamis and associated earthquakes since the XIXth century. Since then, the coastal population of the Caribbean and the Central West Atlantic region has grown significantly and is still growing. Understanding this hazard is therefore essential for the development of efficient mitigation measures. To this end, we report a regional tsunami exposure assessment based on potential and credible seismic and non-seismic tsunamigenic sources. Regional tsunami databases have been compiled and reviewed, and on this basis five main scenarios have been selected to estimate the exposure. The scenarios comprise two Mw8 earthquake tsunamis (north of Hispaniola and east of Lesser Antilles), two subaerial/submarine volcano flank collapse tsunamis (Montserrat and Saint Lucia), and one tsunami resulting from a landslide on the flanks of the Kick'em Jenny submarine volcano (north of Grenada). Offshore tsunami water surface elevations as well as maximum water level distributions along the shore lines are computed and discussed for each of the scenarios. The number of exposed people has been estimated in each case, together with a summary of the tsunami exposure for the earthquake and the landslide tsunami scenarios. For the earthquake scenarios, the highest tsunami exposure relative to the population is found for Guadeloupe (6.5%) and Antigua (7.5%), while Saint Lucia (4.5%) and Antigua (5%) have been found to have the highest tsunami exposure relative to the population for the landslide scenarios. Such high exposure levels clearly warrant more attention on dedicated mitigation measures in the Caribbean region.

  18. Record of Plio-Pleistocene extreme event in the Lesser Antilles fore-arc basin. Example of Grande-Terre (Guadeloupe, French West Indies).

    NASA Astrophysics Data System (ADS)

    Jeanlèn, L.; Philippon, M. M.; Randrianasolo, A.; Jean-Frederic, L.; Cornée, J. J.; Münch, P.

    2015-12-01

    Guadeloupe archipelago is part of the Lesser Antilles active volcanic arc and is therefore subjected to both enhanced seismic and volcanic activity related to the Lesser Antilles subduction zone, along which the Atlantic plate is subducted westward bellow the Caribbean plate. The volcanic arc is composed of several immerged volcanic islands (St Kitts, Nevis Montserrat, Basse Terre, Dominica, Martinique, St Lucia, Grenada) and submerged volcanoes (Kick em'Jenny). These volcanoes are known to be explosives and when they are entering in an eruptive cycle, debris flow could potentially initiate a tsunami and generate peculiar deposits within the sedimentary record recognized as tsunami deposits (or tsunamite). Subduction- related earthquakes might also initiate slope instabilities and trigger debris flow. Another controlling factor of slope (in-)-stabilities and debris flow is massive rainfalls. During cyclonic season (June to December), massive rainfalls are recorded in the area, which moreover is located on the trajectory of Atlantic Hurricanes that are responsible for numerous landslides. As a consequence, tsunami deposit are described and well studied in the Lesser Antilles arc as the islands shoreline and coastal plain are perpetually re-shaped by hurricanes responsible for tempestite deposits. However, the report of these deposit concern recent to actual events, for example present-day deposits consisting of large (metric) boulders, more or less aligned, located in the supralittoral fringe can be observed along Guadeloupe shore. In this study, we investigate the Plio-pleistocene sedimentary sequence of Grande Terre carbonate platform (Guadeloupe), and track the presence of such extreme-event related deposits and discuss our findings in the frame of the Lesser Antilles geological context.

  19. Measurement of thyroid hormones in donkey (Equus asinus) blood and milk: validation of ELISA kits and evaluation of sample collection, handling and storage.

    PubMed

    Todini, Luca; Malfatti, Alessandro; Salimei, Elisabetta; Fantuz, Francesco

    2010-11-01

    Donkey's milk is well tolerated by human infants with cow's milk allergy and is useful in the treatment of human immune-related diseases and in the prevention of atherosclerosis. Thyroid hormones (TH) stimulate lactation and active triiodothyronine (T3) in colostrum and milk could take paracrine action supporting lactogenesis in the mother, and play physiological roles for the suckling offspring (systemic or within the gastrointestinal tract). The aims were to measure TH concentrations in donkey blood and milk, validate ELISA methods, evaluate the effects of sample collection and post-collection handling and the stability of TH in milk and blood serum and plasma samples. In milk and blood samples obtained from lactating jennies total concentrations of TH were assayed using competitive-type ELISA kits. Good validation results were obtained for both TH concentrations in blood serum and plasma and T3 in milk samples extracted with cold (-20°C) ethanol alkalinized (pH 9·0) with NH4OH. In most of the milk extract samples, thyroxine (T4) concentrations resulted below the sensitivity threshold. Intra- and inter-assay coefficients of variations of TH concentrations in different blood and milk samples were below 10%. Parallelism tests gave displacement lines parallel to those of the calibrators for both TH in blood serum and plasma and for T3 in milk extracts. Mean recovery rates were between 95% and 123%, but the concentration values approaching the highest calibrators were overestimated. Therefore, serum and plasma samples for T3 assay must be previously diluted with buffer. Both TH concentrations in blood serum and plasma and T3 in milk did not change during storage for up to 6 months at -20°C. In conclusion, the ELISA methods tested in the present study are suitable for determination of both TH concentrations in donkey blood samples, and for T3 measurement in milk, after extraction with cold alkaline ethanol.

  20. A comparative stereological study of the term placenta in the donkey, pony and Thoroughbred.

    PubMed

    Veronesi, M C; Villani, M; Wilsher, S; Contri, A; Carluccio, A

    2010-09-01

    The aim of the study was to compare horse and donkey placentae using stereological techniques. Term placentae were collected at spontaneous foaling from seven Thoroughbred mares, seven pony mares, and six jenny donkeys. Maternal and foal weights were recorded and the mass, volume, and gross area of each allantochorion was also recorded. Ten random biopsies were recovered and processed for light microscopy from which the surface density of the microcotyledons (S(v)) and the total microscopic area of fetomaternal contact were calculated stereologically. Gestation length was longer in the donkeys than the other two groups (median values: 371 vs. 327 and 341 days, P < 0.05). There were significant correlations between foal birthweight and gross area (rho = 0.89; n = 20; P < 0.05), mass (rho = 0.84; n = 20; P < 0.05) and volume (rho = 0.89; n = 20; P < 0.05) of the allantochorion. S(v) was higher in the donkey placenta than the other groups (median values: 0.05 vs. 0.03 and 0.04 microm(-1), P < 0.05) although placental efficiency was lower in the donkeys (median values: 0.87 vs. 1.33 and 1.32 kg/m2, P < 0.01). The results of the study confirmed that, although strong morphological similarities exist between the allantochorion of the horse and donkey, that of the donkey develops more complex microcotyledons, as judged stereologically, and exhibits a lower placental efficiency. These differences may be related to maternal genotype and/or the longer gestation length shown by the donkey compared to the horse, but a negative correlation (rho = -0.92, P < 0.01) was also found between age and placental efficiency in donkeys.

  1. Columnar structure formation of a dilute suspension of settling spherical particles in a quiescent fluid

    NASA Astrophysics Data System (ADS)

    Huisman, Sander G.; Barois, Thomas; Bourgoin, Mickaël; Chouippe, Agathe; Doychev, Todor; Huck, Peter; Morales, Carla E. Bello; Uhlmann, Markus; Volk, Romain

    2016-11-01

    The settling of heavy spherical particles in a column of quiescent fluid is investigated. The performed experiments cover a range of Galileo numbers (110 ≤Ga≤310 ) for a fixed density ratio of Γ =ρp/ρf=2.5 . In this regime the particles are known to show a variety of motions [Jenny, Dušek, and Bouchet, Instabilities and transition of a sphere falling or ascending freely in a Newtonian fluid, J. Fluid Mech. 508, 201 (2004), 10.1017/S0022112004009164]. It is known that the wake undergoes several transitions for increasing Ga resulting in particle motions that are successively vertical, oblique, oblique oscillating, and finally chaotic. Not only does this change the trajectory of single, isolated, settling particles, but it also changes the dynamics of a swarm of particles as collective effects become important even for dilute suspensions with volume fraction up to ΦV=O (10-3) , which are investigated in this work. Multicamera recordings of settling particles are recorded and tracked over time in three dimensions. A variety of analyses are performed and show a strong clustering behavior. The distribution of the cell areas of the Voronoï tessellation in the horizontal plane is compared to that of a random distribution of particles and shows clear clustering. Moreover, a negative correlation was found between the Voronoï area and the particle velocity; clustered particles fall faster. In addition, the angle between adjacent particles and the vertical is calculated and compared to a homogeneous distribution of particles, clear evidence of vertical alignment of particles is found. The experimental findings are compared to simulations.

  2. Soil heterogeneity of an East and West facing ridge above timberline due to differences in snow and aeolian deposition

    NASA Astrophysics Data System (ADS)

    Traver, E.

    2015-12-01

    Hans Jenny's soil forming factors—time, parent material, climate, topography, and organisms—represent the major components of his system to describe and quantify soil development. In almost all situations, it is difficult to hold even one of these factors constant while focusing on another factor; however, in our study site—the East and West side of a narrow North-South running ridge, above timberline in SE Wyoming—we can hold three factors nearly constant (time, parent material, and climate) and focus on how topography, in particular, has influenced the soil differences on the two sides. The East side is the leeside of prevailing and strong westerly winds and receives a large snow pack while the West is consistently snow-free during winter creating a very different moisture and soil temperature regime. The East receives aeolian dust deposition while the West loses surface material from wind scour. A standard chemical and physical analysis found that while the two sides are nearly identical textually, with a similar pH and low electrical conductivity, the East side is richer in minerals. During the short growing season, soil moisture results show that the West side is holding more water than the East side; however, the East side has a higher percentage of organic matter and is more shrub and forb rich. An isotope analysis shows that the C:N ratios are very similar on the two sides. Microbial biomass and functional groups will be analyzed in the soil samples as well as a seismic study conducted to quantity depth of soil to bedrock. Using all these results will help quantify the differences on the two sides of this narrow ridge and add to our understanding of fine-scale soil heterogeneity and its relationship to watershed hydrology.

  3. Academy Sharing Knowledge (ASK). The NASA Source for Project Management Magazine. Volume 5

    NASA Technical Reports Server (NTRS)

    Post, Todd (Editor)

    2001-01-01

    How big is your project world? Is it big enough to contain other cultures, headquarters, hierarchies, and weird harpoon-like guns? Sure it is. The great American poet Walt Whitman said it best, 'I am large/I contain multitudes.' And so must you, Mr. and Ms. Project Manager. In this issue of ASK, we look outside the project box. See how several talented project managers have expanded their definition of project scope to include managing environments outside the systems and subsystems under their care. Here's a sampling of what we've put together for you this issue: In 'Three Screws Missing,' Mike Skidmore tells about his adventures at the Plesetek Cosmodrome in northern Russia. Ray Morgan in his story, 'Our Man in Kauai,' suggests we take a broader view of what's meant by 'the team.' Jenny Baer-Riedhart, the NASA program manager on the same Pathfinder solar-powered airplane, schools us in how to sell a program to Headquarters in 'Know Thyself--But Don't Forget to Learn About the Customer Too.' Scott Cameron of Proctor and Gamble talks about sharpening your hierarchical IQ in 'The Project Manager and the Hour Glass.' Mike Jansen in 'The Lawn Dart' describes how he and the 'voodoo crew' on the Space Shuttle Advanced Solid Rocket Motor program borrowed a harpoon-like gun from the Coast Guard to catch particles inside of a plume. These are just some of the stories you'll find in ASK this issue. We hope they cause you to stop and reflect on your own project's relationship to the world outside. We are also launching a new section this issue, 'There are No Mistakes, Only Lessons.' No stranger to ASK readers, Terry Little inaugurates this new section with his article 'The Don Quixote Complex.'

  4. Assessing climate-change risks to cultural and natural resources in the Yakima River Basin, Washington, USA

    USGS Publications Warehouse

    Hatten, James R.; Waste, Stephen M.; Maule, Alec G.

    2014-01-01

    We provide an overview of an interdisciplinary special issue that examines the influence of climate change on people and fish in the Yakima River Basin, USA. Jenni et al. (2013) addresses stakeholder-relevant climate change issues, such as water availability and uncertainty, with decision analysis tools. Montag et al. (2014) explores Yakama Tribal cultural values and well-being and their incorporation into the decision-making process. Graves and Maule (2012) simulates effects of climate change on stream temperatures under baseline conditions (1981–2005) and two future climate scenarios (increased air temperature of 1 °C and 2 °C). Hardiman and Mesa (2013) looks at the effects of increased stream temperatures on juvenile steelhead growth with a bioenergetics model. Finally, Hatten et al. (2013) examines how changes in stream flow will affect salmonids with a rule-based fish habitat model. Our simulations indicate that future summer will be a very challenging season for salmonids when low flows and high water temperatures can restrict movement, inhibit or alter growth, and decrease habitat. While some of our simulations indicate salmonids may benefit from warmer water temperatures and increased winter flows, the majority of simulations produced less habitat. The floodplain and tributary habitats we sampled are representative of the larger landscape, so it is likely that climate change will reduce salmonid habitat potential throughout particular areas of the basin. Management strategies are needed to minimize potential salmonid habitat bottlenecks that may result from climate change, such as keeping streams cool through riparian protection, stream restoration, and the reduction of water diversions. An investment in decision analysis and support technologies can help managers understand tradeoffs under different climate scenarios and possibly improve water and fish conservation over the next century.

  5. Closure Report for Corrective Action Unit 536: Area 3 Release Site, Nevada Test Site, Nevada

    SciTech Connect

    NSTec Environmental Restoration

    2007-06-01

    Corrective Action Unit (CAU) 536 is located in Area 3 of the Nevada Test Site. CAU 536 is listed in the Federal Facility Agreement and Consent Order of 1996 as Area 3 Release Site, and comprises a single Corrective Action Site (CAS): {sm_bullet} CAS 03-44-02, Steam Jenny Discharge The Nevada Division of Environmental Protection (NDEP)-approved corrective action alternative for CAS 03-44-02 is clean closure. Closure activities included removing and disposing of total petroleum hydrocarbon (TPH)- and polyaromatic hydrocarbon (PAH)-impacted soil, soil impacted with plutonium (Pu)-239, and concrete pad debris. CAU 536 was closed in accordance with the NDEP-approved CAU 536 Corrective Action Plan (CAP), with minor deviations as approved by NDEP. The closure activities specified in the CAP were based on the recommendations presented in the CAU 536 Corrective Action Decision Document (U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office, 2004). This Closure Report documents CAU 536 closure activities. During closure activities, approximately 1,000 cubic yards (yd3) of hydrocarbon waste in the form of TPH- and PAH-impacted soil and debris, approximately 8 yd3 of Pu-239-impacted soil, and approximately 100 yd3 of concrete debris were generated, managed, and disposed of appropriately. Additionally, a previously uncharacterized, buried drum was excavated, removed, and disposed of as hydrocarbon waste as a best management practice. Waste minimization techniques, such as the utilization of laboratory analysis to characterize and classify waste streams, were employed during the performance of closure

  6. Amiata Donkey Milk Chain: Animal Health Evaluation and Milk Quality

    PubMed Central

    Ragona, Giuseppe; Corrias, Franco; Benedetti, Martina; Paladini, Maria; Salari, Federica; Altomonte, lolanda; Martini, Mina

    2016-01-01

    This study presents an investigation of Amiata donkey health and quality of milk for human consumption. Thirty-one lactating dairy jennies were examined. The following samples were collected: faecal samples from the rectum of animals for parasitological examination; cervical swabs for the detection of bacteria causing reproductive disorders; and blood samples for serological diagnosis of main zoonotic (Brucella spp., Leptospira spp.) and donkey abortion agents (Brucella spp., Leptospira spp., Salmonella abortus equi, Equine viral arterithis virus, Equine herpesvirus type 1). In addition, individual milk samples were collected and analysed for mastitis-causing pathogens and milk quality. Regarding animal health, we detected a high prevalence of strongyle parasites in donkeys. It is very important to tackle parasitic diseases correctly. Selective control programmes are preferable in order to reduce anthelmintic drug use. For dairy donkeys, withdrawal periods from anthelmintic drugs need to be carefully managed, in accordance with EU and national regulations. The isolation of Staphylococcus aureus in milk highlights the importance of preventing contamination during milking, by adopting appropriate hygiene and safety practices at a farm level. Lysozyme activity was high compared to cow’s milk, contributing to the inhibitory activity against certain bacteria. Donkey milk was characterised by high lactose content, low caseins, low fat, higher levels of unsaturated fatty acids compared to ruminant milks. Unsaturated fatty acids and omega 3 fatty acids in particular have become known for their beneficial health effect, which is favourable for human diet. These characteristics make it suitable for infants and children affected by food intolerance/allergies to bovine milk proteins and multiple food allergies as well as for adults with dyslipidemias. It is also recommended to prevent cardiovascular diseases. PMID:27853717

  7. DTMiner: identification of potential disease targets through biomedical literature mining

    PubMed Central

    Xu, Dong; Zhang, Meizhuo; Xie, Yanping; Wang, Fan; Chen, Ming; Zhu, Kenny Q.; Wei, Jia

    2016-01-01

    Motivation: Biomedical researchers often search through massive catalogues of literature to look for potential relationships between genes and diseases. Given the rapid growth of biomedical literature, automatic relation extraction, a crucial technology in biomedical literature mining, has shown great potential to support research of gene-related diseases. Existing work in this field has produced datasets that are limited both in scale and accuracy. Results: In this study, we propose a reliable and efficient framework that takes large biomedical literature repositories as inputs, identifies credible relationships between diseases and genes, and presents possible genes related to a given disease and possible diseases related to a given gene. The framework incorporates name entity recognition (NER), which identifies occurrences of genes and diseases in texts, association detection whereby we extract and evaluate features from gene–disease pairs, and ranking algorithms that estimate how closely the pairs are related. The F1-score of the NER phase is 0.87, which is higher than existing studies. The association detection phase takes drastically less time than previous work while maintaining a comparable F1-score of 0.86. The end-to-end result achieves a 0.259 F1-score for the top 50 genes associated with a disease, which performs better than previous work. In addition, we released a web service for public use of the dataset. Availability and Implementation: The implementation of the proposed algorithms is publicly available at http://gdr-web.rwebox.com/public_html/index.php?page=download.php. The web service is available at http://gdr-web.rwebox.com/public_html/index.php. Contact: jenny.wei@astrazeneca.com or kzhu@cs.sjtu.edu.cn Supplementary information: Supplementary data are available at Bioinformatics online. PMID:27506226

  8. Prevalence of thyroid dysfunction in patients with diabetes mellitus

    PubMed Central

    2013-01-01

    Background Diabetes mellitus (DM) and thyroid dysfunction (TD) are the two most common endocrine disorders in clinical practice. The unrecognized TD may adversely affect the metabolic control and add more risk to an already predisposing scenario for cardiovascular diseases. The objective of this study was to investigate the prevalence of TD in patients with type 1 and type 2 diabetes mellitus (T1DM and T2DM). Methods This is an observational cross-sectional study. Three hundred eighty-six (386) patients with T1DM or T2DM that regularly attended the outpatient clinic of the Diabetes unit, Hospital Universitário Pedro Ernesto, participated in the study. All patients underwent a clinical and laboratory evaluation. Thyroid dysfunction was classified as clinical hypothyroidism (C-Hypo) if TSH > 4.20 μUI/mL and FT4 < 0.93 ng/dL; Subclinical hypothyroidism (SC-Hypo) if TSH > 4.20 μUI/ml and FT4 ranged from 0.93 to 1.7 ng/dL; Subclinical hyperthyroidism (SC-Hyper) if TSH < 0.27 μUI/ml and FT4 in the normal range (0.93 and 1.7 ng/dL) and Clinical hyperthyroidism (C-Hyper) if TSH < 0.27 μUI/ml and FT4 > 1.7 μUI/mL. Autoimmunity were diagnosed when anti-TPO levels were greater than 34 IU/mL. The positive autoimmunity was not considered as a criterion of thyroid dysfunction. Results The prevalence of TD in all diabetic patients was 14,7%. In patients who had not or denied prior TD the frequency of TD was 13%. The most frequently TD was subclinical hypothyroidism, in 13% of patients with T1DM and in 12% of patients with T2DM. The prevalence of anti-TPO antibodies was 10.8%. Forty-four (11.2%) new cases of TD were diagnosed during the clinical evaluation. The forty-nine patients with prior TD, 50% with T1DM and 76% with T2DM were with normal TSH levels. Conclusions We conclude that screening for thyroid disease among patients with diabetes mellitus should be routinely performed considering the prevalence of new cases diagnosed and the possible

  9. Nesting Ecology of Hawksbill Sea Turtles (Eretmochelys imbricata) on Utila, Honduras

    NASA Astrophysics Data System (ADS)

    Damazo, Lindsey Renee Eggers

    The hawksbill sea turtle (Eretmochelys imbricata) has a circumtropical distribution and plays an important role in maintaining the health of coral reefs. Unfortunately, hawksbill populations have been decimated, and estimated numbers in the Caribbean are less than 10% of populations a century ago. The hawksbill is considered Critically Endangered, and researchers are coordinating worldwide efforts to protect this species. One country where we lack knowledge regarding hawksbills is Honduras. This study aimed to increase our understanding of hawksbill nesting ecology in Caribbean Honduras. Characteristics of hawksbill nesting activity and a nesting beach on the island of Utila were elucidated using satellite telemetry, beach profiling, vegetation surveys, beach monitoring, and nest temperature profiles. We affixed satellite transmitters to two nesting hawksbills, and found the turtles migrated to different countries. One turtle traveled 403 km to a bay in Mexico, and the other traveled 181 km to a Marine Protected Area off Belize. This study presents the first description of hawksbill migration routes from Honduras, facilitating protection efforts for turtles that traverse international waters. To investigate nesting beach and turtle characteristics, we conducted beach monitoring during the 2012 nesting season. Nesting turtle carapace sizes were similar to worldwide values, but hatchlings were heavier. To measure nest temperatures, we placed thermocouple data loggers in four nests and four pseudo-nests. Data suggested metabolic heating may be maintaining nest temperatures above the pivotal temperature. However, large temperature fluctuations corresponding to rainfall from Hurricane Ernesto (as determined using a time series cross-correlation analysis) make it difficult to predict sex ratios, and underscore the impact stochastic events can have on nest temperatures. We created topographic and substrate profiles of the beach, and found it was 475 m long, yet hawksbills

  10. Sulphate concentration in cave dripwater and speleothems: long-term trends and overview of its significance as proxy for environmental processes and climate changes

    NASA Astrophysics Data System (ADS)

    Borsato, Andrea; Frisia, Silvia; Wynn, Peter M.; Fairchild, Ian J.; Miorandi, Renza

    2015-11-01

    Sulphate concentrations in speleothems identify major volcanic eruptions, provide useful information on soil and aquifer dynamics and, in similar fashion to the 14C bomb peak, its Anthropocene peak can be used to date recent cave formations. However, the transmission of S from the atmosphere to cave dripwater and its incorporation in speleothems is subjected to biogeochemical cycling and accurate studies of each cave site are needed in order to assess how the S atmospheric signal is modified and eventually encoded in speleothems. This study investigates the role of biogeochemical cycling and aquifer hydrology by utilising published and new dripwater and speleothem data from Grotta di Ernesto (ER) in northern Italy. Here we provide the first long-term record of sulphate concentration in cave dripwater based on over 20 years of measurements. Fast drip site st-ER1 is characterised by a continuous decrease in SO4 concentration from a high of 7.5 ± 0.8 mg/l in 1993-1994 to a low of 2.2 ± 0.2 mg/l in 2013-2014, and replicates with a delay of ∼15 years the decline in the atmospheric SO2 emissions. The S-series of slow flow ER78 site is further delayed by ∼4.5 years in relation to the S retention in the aquifer matrix. The dripwater data are used to extend the previously published S record (1810-1998 AD) of stalagmite ER78 and reconstruct the anthropogenic S-peak: this displays a delay of ∼20 years with respect to the atmospheric S emission peak due to biogeochemical cycling and aquifer storage. However, sulphur recycling above the cave did not operate with the same degree of efficiency through time, which resulted in a variable time delay between S deposition and incorporation into the stalagmite. In the pre-Anthropocene era, and in particular during the cold Little Ice Age, biogeochemical cycling was far less efficient than today, and the fast transmission of the atmospheric signal allowed capture of S released during major volcanic eruptions by stalagmites.

  11. Generation of RNA in abiotic conditions.

    NASA Astrophysics Data System (ADS)

    di Mauro, Ernesto

    Generation of RNA in abiotic conditions. Ernesto Di Mauro Dipartimento di Genetica Bi-ologia Molecolare, Universit` "Sapienza" Roma, Italy. a At least four conditions must be satisfied for the spontaneous generation of (pre)-genetic poly-mers: 1) availability of precursors that are activated enough to spontaneously polymerize. Preliminary studies showed that (a) nucleic bases and acyclonucleosides can be synthesized from formamide H2NCOH by simply heating with prebiotically available mineral catalysts [last reviewed in (1)], and that b) nucleic bases can be phosphorylated in every possible posi-tion [2'; 3'; 5'; cyclic 2',3'; cyclic 3',5' (2)]. The higher stability of the cyclic forms allows their accumulation. 2) A polymerization mechanism. A reaction showing the formation of RNA polymers starting from prebiotically plausible precursors (3',5' cyclic GMP and 3', 5'cyclic AMP) was recently reported (3). Polymerization in these conditions is thermodynamically up-hill and an equilibrium is attained that limits the maximum length of the polymer produced to about 40 nucleotides for polyG and 100 nucleotides for polyA. 3) Ligation of the synthesized oligomers. If this type of reaction could occur according to a terminal-joining mechanism and could generate canonical 3',5' phosphodiester bonds, exponential growth would be obtained of the generated oligomers. This type of reaction has been reported (4) , limited to homogeneous polyA sequences and leading to the production of polyA dimers and tetramers. What is still missing are: 4) mechanisms that provide the proof of principle for the generation of sequence complexity. We will show evidence for two mechanisms providing this proof of principle for simple complementary sequences. Namely: abiotic sequence complementary-driven terminal ligation and sequence-complementary terminal growth. In conclusion: all the steps leading to the generation of RNA in abiotic conditions are satisfied. (1) R Saladino, C Crestini, F

  12. VII International Congress of Engineering Physics

    NASA Astrophysics Data System (ADS)

    2015-01-01

    In the frame of the fortieth anniversary celebration of the Universidad Autónoma Metropolitana and the Physics Engineering career, the Division of Basic Science and Engineering and its Departments organized the "VII International Congress of Physics Engineering". The Congress was held from 24 to 28 November 2014 in Mexico City, Mexico. This congress is the first of its type in Latin America, and because of its international character, it gathers experts on physics engineering from Mexico and all over the globe. Since 1999, this event has shown research, articles, projects, technological developments and vanguard scientists. These activities aim to spread, promote, and share the knowledge of Physics Engineering. The topics of the Congress were: • Renewable energies engineering • Materials technology • Nanotechnology • Medical physics • Educational physics engineering • Nuclear engineering • High precision instrumentation • Atmospheric physics • Optical engineering • Physics history • Acoustics This event integrates lectures on top trending topics with pre-congress workshops, which are given by recognized scientists with an outstanding academic record. The lectures and workshops allow the exchange of experiences, and create and strengthen research networks. The Congress also encourages professional mobility among all universities and research centres from all countries. CIIF2014 Organizing and Editorial Committee Dr. Ernesto Rodrigo Vázquez Cerón Universidad Autónoma Metropolitana - Azcapotzalco ervc@correo.azc.uam.mx Dr. Luis Enrique Noreña Franco Universidad Autónoma Metropolitana - Azcapotzalco lnf@correo.azc.uam.mx Dr. Alberto Rubio Ponce Universidad Autónoma Metropolitana - Azcapotzalco arp@correo.azc.uam.mx Dr. Óscar Olvera Neria Universidad Autónoma Metropolitana - Azcapotzalco oon@correo.azc.uam.mx Professor Jaime Granados Samaniego Universidad Autónoma Metropolitana - Azcapotzalco jgs@correo.azc.uam.mx Dr. Roberto Tito Hern

  13. Results from the Worldwide Coma Morphology Campaign for Comet ISON (C/2012 S1)

    NASA Astrophysics Data System (ADS)

    Samarasinha, Nalin H.

    2014-11-01

    Comet ISON (C/2012 S1) was predicted to be a bright comet in late 2013 because of its extremely small perihelion distance of 2.7 solar radii. In anticipation of the likely bonanza of scientific results, we coordinated a worldwide campaign (http://www.psi.edu/ison) to obtain both dust and gas images of the comet. During the campaign, we have received many hundreds of images primarily from amateur astronomers but also from a number of professionals.Comet ISON showed dust structure in its coma at large heliocentric distances before water became the primary sublimating gas. The Hubble Space Telescope (HST) observed a dust feature in the coma at a heliocentric distance of 4.15 AU in April 2013 (Li et al. 2013, ApJL, 779, article id. L3). The enhancement of continuum images taken by team members Nick Howes and Ernesto Guido at the 2-m Liverpool Telescope in May 2013 at different multiple epochs clearly showed the same dust feature (e.g., http://remanzacco.blogspot.com/2013/05/comet-c2012-s1-ison-update-may-20-2013.html). During the northern-hemisphere summer, the solar elongation of ISON became too small for ground-based observations. The comet was again observable starting in August 2013 as the solar elongation started to increase. These observations, at much smaller heliocentric distances than those described earlier, did not show the same dust feature. No unambiguous dust or gas features were seen until about two weeks prior to the perihelion and the comet’s demise (i.e., until mid November 2013). Based on the observations taken more than two weeks prior to the perihelion, we place upper limits on the radial extent of any possible dust feature. This and other results based on the coma morphology campaign will be discussed at the DPS 2014 meeting. The results from the analysis will be published in the future and will include the entire campaign.We thank many amateur and professional observers who contributed to this effort and all observers will be individually

  14. Geoethics. The risk and the rite

    NASA Astrophysics Data System (ADS)

    Dattilo, Valeria; De Pascale, Francesco

    2015-04-01

    The present work combines anthropological-philosophical and geoethical research on man's perception of, and reaction to, natural catastrophes such as earthquakes. The study offers an articulate and cohesive picture of the defense mechanisms man has deployed, since ancient cultures, against this risk, these are identified with mythical-ritualistic repetition. At critical moments, man develops a series of practical strategies resting on ritual action. Since the dawn of civilisation, in every instant of everyday life from birth to death and in all cultures, man is exposed to the risk of not being-there, that is, to the risk of catastrophe hitting him or the world around him. This may occur in connection to economic and social mutations, for example in times of war, or to the unpredictability of natural catastrophes which are out of human control, for example seaquakes. Taking this as our starting point, we will analyse the crucial matter of the crisis or loss of presence, that is, the risk of not being-there in critical moments of historical existence, limiting ourselves to consideration of forms of defense from risk represented by natural catastrophe (for example, seaquakes and volcanic eruptions) amongst so-called primitive people, from an anthropological-physical point of view. We will look at the historical-religious thought of Italian philosopher Ernesto de Martino (1908-1965) and in particular some of his critical lectures published posthumously in La fine del mondo. Contributo alle analisi delle apocalissi culturali (1977). We will treat philosophical concepts like anthropological evidence with the aim of identifying different mechanisms of defense from the risk of not being-there, even in cultures very distant from Western ones. We will specifically consider apocalyptic representations connected with experience of natural catastrophe in traditional cultures. The Italian philosopher identifies in repetition the characteristic behaviour of so-called primitives

  15. Out of the Shadows

    NASA Astrophysics Data System (ADS)

    Byers, Nina; Williams, Gary

    2010-12-01

    Foreword Freeman J. Dyson; Introduction Nina Byers; 1. Hertha Aryton 1854-1923 Joan Mason; 2. Margaret Maltby 1860-1944 Peggy Kidwell; 3. Agnes Pockels 1862-1935 Gary A. Williams; 4. Marie Curie 1867-1934 A. Pais; 5. Henrietta Leavitt 1868-1921 Jean L. Turner; 6. Harriet Brooks 1876-1933 C. W. Wong; 7. Lise Meitner 1878-1968 Ruth Lewin Sime; 8. Emmy Noether 1882-1935 Nina Byers; 9. Inge Lehmann 1888-1993 Bruce A. Bolt; 10. Marietta Blau 1894-1970 Leopold Halpern and Maurice M. Shapiro; 11. Hertha Sponer 1895-1968 Helmut Rechenberg; 12. Irene Joliot-Curie 1897-1956 Hélène Langevin-Joliot and Pierre Radvanyi; 13. Katherine Burr Blodgett 1898-1979 Gary A. Williams; 14. Cecilia Payne Gaposchkin 1900-1979 Vera C. Rubin; 15. Mary Cartwright 1900-1998 Freeman J. Dyson; 16. Bertha Jeffreys 1903-1999 Ruth M. Williams; 17. Kathleen Yardley Lonsdale1903-1971 Judith Milledge; 18. Maria Goeppert Mayer 1906-1972 Steven A. Moszkowski; 19. Helen Megaw 1907-2002 A. Michael Glazer and Christine Kelsey; 20. Yvette Cauchois 1908-1999 Christiane Bonnelle; 21. Marguerite Perey 1909-1975 Jean-Pierre Adloff and George B. Kauffman; 22. Dorothy Crowfoot Hodgkin 1910-1994 Jenny P. Glusker; 23. Gertrude Scharff Goldhaber 1911-1998 Alfred Scharff Goldhaber; 24. Chien Shiung Wu 1912-1997 Noemie Bencze-Koller; 25. Margaret E. Burbidge 1919 Virginia Trimble; 26. Phyllis Freier 1921-1992 Cecil J. Waddington; 27. Rosalyn S. Yalow 1921 M. S. Dresselhaus and F. A. Stahl; 28. Esther Conwell 1922 Lewis Rothberg; 29. Cecile Dewitt-Morette 1922 Bryce DeWitt; 30. Yvonne Choquet-Bruhat 1923 James W. York Jr.; 31. Vera Rubin 1928 Robert J. Rubin; 32. Mildred S. Dresselhaus 1930 G. Dresselhaus and F. A. Stahl; 33. Myriam Sarachik 1933 Jonathan R. Friedman; 34. Juliet Lee-Franzini 1933 Paolo Franzini; 35. Helen T. Edwards 1936 John Peoples; 36. Mary K. Gaillard 1939 Andreszej Buras; 37. Renata Kallosh 1943 Andrei Linde and Michael Gutperle; 38. Jocelyn Bell Burnell 1943 Ferdinand V. Coroniti and Gary A

  16. Out of the Shadows

    NASA Astrophysics Data System (ADS)

    Byers, Nina; Williams, Gary

    2006-08-01

    Foreword Freeman J. Dyson; Introduction Nina Byers; 1. Hertha Aryton 1854-1923 Joan Mason; 2. Margaret Maltby 1860-1944 Peggy Kidwell; 3. Agnes Pockels 1862-1935 Gary A. Williams; 4. Marie Curie 1867-1934 A. Pais; 5. Henrietta Leavitt 1868-1921 Jean L. Turner; 6. Harriet Brooks 1876-1933 C. W. Wong; 7. Lise Meitner 1878-1968 Ruth Lewin Sime; 8. Emmy Noether 1882-1935 Nina Byers; 9. Inge Lehmann 1888-1993 Bruce A. Bolt; 10. Marietta Blau 1894-1970 Leopold Halpern and Maurice M. Shapiro; 11. Hertha Sponer 1895-1968 Helmut Rechenberg; 12. Irene Joliot-Curie 1897-1956 Hélène Langevin-Joliot and Pierre Radvanyi; 13. Katherine Burr Blodgett 1898-1979 Gary A. Williams; 14. Cecilia Payne Gaposchkin 1900-1979 Vera C. Rubin; 15. Mary Cartwright 1900-1998 Freeman J. Dyson; 16. Bertha Jeffreys 1903-1999 Ruth M. Williams; 17. Kathleen Yardley Lonsdale1903-1971 Judith Milledge; 18. Maria Goeppert Mayer 1906-1972 Steven A. Moszkowski; 19. Helen Megaw 1907-2002 A. Michael Glazer and Christine Kelsey; 20. Yvette Cauchois 1908-1999 Christiane Bonnelle; 21. Marguerite Perey 1909-1975 Jean-Pierre Adloff and George B. Kauffman; 22. Dorothy Crowfoot Hodgkin 1910-1994 Jenny P. Glusker; 23. Gertrude Scharff Goldhaber 1911-1998 Alfred Scharff Goldhaber; 24. Chien Shiung Wu 1912-1997 Noemie Bencze-Koller; 25. Margaret E. Burbidge 1919 Virginia Trimble; 26. Phyllis Freier 1921-1992 Cecil J. Waddington; 27. Rosalyn S. Yalow 1921 M. S. Dresselhaus and F. A. Stahl; 28. Esther Conwell 1922 Lewis Rothberg; 29. Cecile Dewitt-Morette 1922 Bryce DeWitt; 30. Yvonne Choquet-Bruhat 1923 James W. York Jr.; 31. Vera Rubin 1928 Robert J. Rubin; 32. Mildred S. Dresselhaus 1930 G. Dresselhaus and F. A. Stahl; 33. Myriam Sarachik 1933 Jonathan R. Friedman; 34. Juliet Lee-Franzini 1933 Paolo Franzini; 35. Helen T. Edwards 1936 John Peoples; 36. Mary K. Gaillard 1939 Andreszej Buras; 37. Renata Kallosh 1943 Andrei Linde and Michael Gutperle; 38. Jocelyn Bell Burnell 1943 Ferdinand V. Coroniti and Gary A

  17. Distribution and Movement of Bull Trout in the Upper Jarbidge River Watershed, Nevada

    USGS Publications Warehouse

    Allen, M. Brady; Connolly, Patrick J.; Mesa, Matthew G.; Charrier, Jodi; Dixon, Chris

    2010-01-01

    . This growth rate is within the range reported in other river systems and is indicative of good habitat conditions. Mark-recapture methods were used to estimate a population of 147 age-1 or older bull trout in the reach of Jack Creek upstream of Jenny Creek.

  18. Efficacy of a randomized trial examining commercial weight loss programs and exercise on metabolic syndrome in overweight and obese women.

    PubMed

    Baetge, Claire; Earnest, Conrad P; Lockard, Brittanie; Coletta, Adriana M; Galvan, Elfego; Rasmussen, Christopher; Levers, Kyle; Simbo, Sunday Y; Jung, Y Peter; Koozehchian, Majid; Oliver, Jonathan; Dalton, Ryan; Sanchez, Brittany; Byrd, Michael J; Khanna, Deepesh; Jagim, Andrew; Kresta, Julie; Greenwood, Mike; Kreider, Richard B

    2017-02-01

    While commercial dietary weight-loss programs typically advise exercise, few provide actual programing. The goal of this study was to compare the Curves Complete 90-day Challenge (CC, n = 29), which incorporates exercising and diet, to programs advocating exercise (Weight Watchers Points Plus (WW, n = 29), Jenny Craig At Home (JC, n = 27), and Nutrisystem Advance Select (NS, n = 28)) or control (n = 20) on metabolic syndrome (MetS) and weight loss. We randomized 133 sedentary, overweight women (age, 47 ± 11 years; body mass, 86 ± 14 kg; body mass index, 35 ± 6 kg/m(2)) into respective treatment groups for 12 weeks. Data were analyzed using chi square and general linear models adjusted for age and respective baseline measures. Data are means ± SD or mean change ± 95% confidence intervals (CIs). We observed a significant trend for a reduction in energy intake for all treatment groups and significant weight loss for all groups except control: CC (-4.32 kg; 95% CI, -5.75, -2.88), WW (-4.31 kg; 95% CI, -5.82, -2.96), JC (-5.34 kg; 95% CI, -6.86, -3.90), NS (-5.03 kg; 95% CI, -6.49, -3.56), and control (0.16 kg, 95% CI, -1.56, 1.89). Reduced MetS prevalence was observed at follow-up for CC (35% vs. 14%, adjusted standardized residuals (adjres.) = 3.1), but not WW (31% vs. 28% adjres. = 0.5), JC (37% vs. 42%, adjres. = -0.7), NS (39% vs. 50% adjres. = -1.5), or control (45% vs. 55% adjres. = -1.7). While all groups improved relative fitness (mL·kg(-1)·min(-1)) because of weight loss, only the CC group improved absolute fitness (L/min). In conclusion, commercial programs offering concurrent diet and exercise programming appear to offer greater improvements in MetS prevalence and cardiovascular function after 12 weeks of intervention.

  19. Some characteristics of soils on the man made mounds in the Harran Plain of Turkey.

    PubMed

    Irmak, Seyyid; Surucu, Abdülkadir

    2007-12-15

    Morphological, chemical and some mineralogical characteristics of five soils, were researched to understand the genesis of soils on the man made mounds in the Harran Plain, in the Southeast Anatolia Region of Turkey. Five soil profiles developed on the man made mounds in the arid region. Time and climate have affected soil formation. Also, parent material has influenced the chemistry of soils. The parent material of man made mounds were carried from around soils in the Harran Plain by men in years ago. The parent materials of around soils are calcareous parent materials and alluvium materials. Pedon 1 was described on the Konuklu man made mounds the northeast of the study area and Pedon 5 was described on the Küplüce man made mounds the southeast of the study area. According to the place of man made mounds were ordered from north to south as following: Pedon 1, Pedon 2, Pedon 3, Pedon 4 and Pedon 5. The old of Konuklu mounds is approximately 5000-6000 years. The old of Sultantepe and Koruklu mounds are approximately 6000 years. Pedon 4 which was described on the old Harran city remnants have the youngest soils of study area. The Harran mounds was made in 1258 A.I. by Mongolians. Mongolians destroyed the Harran City and made the Harran mounds. The most important pedogenic processes is carbonate leaching and accumulation in the pedon 5 on the Küplüce man made mounds. The CaCO3 content of Pedon 5 may be attributed to eolian addition from Syria. Total Al2O3 contents of soils higher than total Fe2O3 content. According to the degree of soil formation the profiles were ordered as following: Pedon 3 > Pedon 5 > Pedon 2 > Pedon 1 > Pedon 4. The results of total elements analysis were used to determine the beta leaching factor according to Jenny. The leaching factor were determined as < 1 in the Pedon 1 (0.99), Pedon 2 (0.97), Pedon 3 (0.74) and Pedon 5 (0.92). The leaching factor were determined as >1 in the Pedon 4(1.13).

  20. Nonlinear analysis of multiphase transport in porous media in the presence of viscous, buoyancy, and capillary forces

    NASA Astrophysics Data System (ADS)

    Li, Boxiao; Tchelepi, Hamdi A.

    2015-09-01

    weighting scheme, leading to an improved nonlinear convergence performance especially when used together with our NTR solver. Our proposed numerical solution strategy that is based on the numerical flux and handles capillarity extends the previous work by Jenny et al. (2009) [6] and Wang and Tchelepi (2013) [7] significantly.

  1. The StarDate Black Hole Encyclopedia Website blackholes.stardate.org

    NASA Astrophysics Data System (ADS)

    Gebhardt, Karl; Benningfield, D.; Preston, S.

    2013-01-01

    The StarDate Black Hole Encyclopedia website was developed over the past seven years to provide an extensive but easy-to-read resource for the public and students. A Spanish-language version, Enciclopedia de agujeros negros, is also available at blackholes.radiouniverso.org. Evaluation shows that the sites are used by the public, students, and astronomy professionals, and the site is among the top references in most web searches for individual black holes. The site comprises seven major subsections: Basics, Directory, Research, History, Pop Culture, News, and Resources. The Basics section introduces black holes, explains how they are discovered and studied, and covers their basis in the theory of gravity. This section also includes a six-minute video introduction, “Black Holes: Stranger than Fiction.” The Directory section contains extensive descriptions of more than 80 well-known stellar, intermediate, and supermassive black holes as well as images and vital statistics of each. The Research section takes a look at three NSF-funded projects, including the work of Andrea Ghez, Karl Gebhardt and Jenny Greene, and the LIGO project. The History section provides a timeline of black holes from Isaac Newton to the present. Some of the best and worst roles played by black holes in films, TV shows, and books are included in the Pop Culture section (and pop culture references and images are sprinkled through the rest of the site). An archive of news reports about black holes is available in the News section, which provides links to the original stories or press releases. And the Resources section offers FAQs, articles from StarDate magazine and radio programs, activities for students that are tied to national standards, a glossary, and a reading list of books and websites. We have conducted both quantitative and qualitative evaluation on the black hole websites. This material is based upon work supported by the National Science Foundation under Grant No. 0935841. Any

  2. Discovering the essence of soil

    NASA Astrophysics Data System (ADS)

    Frink, D.

    2012-04-01

    Science, and what it can learn, is constrained by its paradigms and premises. Similarly, teaching and what topics can be addressed are constrained by the paradigms and premises of the subject matter. Modern soil science is founded on the five-factor model of Dokuchaev and Jenny. Combined with Retallack's universal definition of soil as geologic detritus affected by weathering and/or biology, modern soil science emphasizes a descriptive rather than an interpretive approach. Modern soil science however, emerged from the study of plants and the need to improve crop yields in the face of chronic and wide spread famine in Europe. In order to teach that dirt is fascinating we must first see soils in their own right, understand their behavior and expand soil science towards an interpretive approach rather than limited as a descriptive one. Following the advice of James Hutton given over two centuries ago, I look at soils from a physiological perspective. Digestive processes are mechanical and chemical weathering, the resulting constituents reformed into new soil constituents (e.g. clay and humus), translocated to different regions of the soil body to serve other physiological processes (e.g. lamellae, argillic and stone-line horizons), or eliminated as wastes (e.g. leachates and evolved gasses). Respiration is described by the ongoing and diurnal exchange of gasses between the soil and its environment. Circulatory processes are evident in soil pore space, drainage capacity and capillary capability. Reproduction of soil is evident at two different scales: the growth of clay crystals (with their capacity for mutation) and repair of disturbed areas such as result from the various pedo-perturbations. The interactions between biotic and abiotic soil components provide examples of both neurological and endocrine systems in soil physiology. Through this change in perspective, both biotic and abiotic soil processes become evident, providing insight into the possible behavior of

  3. Influence of season on testicular morphometry and semen characteristics in Martina Franca jackasses.

    PubMed

    Carluccio, A; Panzani, S; Contri, A; Bronzo, V; Robbe, D; Veronesi, M C

    2013-02-01

    As other European donkey breeds, Martina Franca could be considered an endangered breed because of the population number (48 jackasses and 515 jennies in 2011). To increase donkey population and breed biodiversity preservation, several research projects on donkey reproduction have been performed; however reproductive seasonality has been only partially investigated in jackasses. For this reason the aim of this study was to investigate the effect of seasons and of long (spring to summer; SS) and short (autumn to winter; AW) day length periods, on reproductive physiology of Martina Franca jackasses, in particular on: (1) testicular morphometric characteristics, (2) behavior, through the evaluation of the reaction time, and finally, (3) semen characteristics. Seven adult and reproductively mature Martina Franca jackasses were enrolled. For each jackass, a morphometric evaluation of both testes was performed once for every season, before the first seasonal collection. Semen was collected, by artificial vagina, weekly for a whole year (52 collections per donkey); at each collection the reaction time was recorded and a complete semen evaluation was performed immediately after collection. No differences in testicular measures were observed neither between left and right testis nor during the four seasons. A lower reaction time was observed in spring and summer compared with autumn and winter and during the period SS compared with AW. Total volume was significantly higher in winter compared with all the other seasons; gel-free volume was higher in winter compared with summer and autumn. Mean sperm concentration was significantly lower in winter compared with spring and summer and in AW compared with SS. Total and progressive motility and membrane integrity did not show any significant difference between season and between SS and AW. A lower average path velocity was observed in autumn compared with spring and summer, and in summer a higher straight line velocity compared

  4. Soil Inorganic Carbon Thresholds and Formation: What are the Controls in a Transitional, Semi-Arid Watershed?

    NASA Astrophysics Data System (ADS)

    Stanbery, C.; Will, R. M.; Benner, S. G.; Seyfried, M. S.; Lohse, K. A.; Lytle, M. L.; Weppner, K.; Flores, A. N.; Smith, A.; Good, A.; Thornton, C.; Lewis, H.; Bruck, B.; Huq, O.; Wallace, S.; Cook, M.; Black, C.; Pierce, J. L.

    2015-12-01

    Inorganic Soil Carbon (SIC) constitutes approximately 40% of terrestrial soil carbon and it is an integral part of the global carbon cycle. The precipitation and storage of inorganic carbon within soils is controlled by the soil forming factors (Jenny, 1941) where the amount of rainfall is the strongest control on SIC presence or absence. However, within areas dry enough to allow inorganic carbon formation, the hierarchy of controls on SIC amount is complex. Measuring and modeling SIC accumulation at the pedon and watershed scale will improve our understanding of SIC storage. The Reynolds Creek watershed in southwestern Idaho is an ideal location for the study as it transitions from SIC dominated in low elevations to organic carbon dominated at high elevations, and includes a range of parent materials and vegetation types. Initial results show that SIC is unlikely to form at sites with >450mm of precipitation, and variability in SIC concentration at the pedon scale is significant. The study locations had vegetation types that included a variety of sagebrush species (Artimesia spp), bitterbrush (Purshia tridentata) greasewood (Sarcobatus vermiculatus) and juniper (Juniperus occidentalis). Samples were collected from soils formed on granite, basalt, other volcanics, and alluvium. SIC measurements were made using a modified pressure calcimeter, measuring CO2 released from the reaction of acid with the sample. The highest SIC concentrations range from 15 to 27kg/m2 and are found in basaltic and terrace soils with loess accumulation, in elevations ranging from 1148-1943m and rainfall ranging from 250-716mm. Soils examined from a chronosequence of four terraces in the lower watershed (282-296mm of rainfall), and generally increasing amounts of loess accumulation with time, suggest strong accumulation of SIC on older loessal surfaces. Measurements from both fine-grained and gravelly soils suggests that approximately 15% of SIC in gravelly sites may be accumulated as

  5. PREFACE: Sensors & their Applications XV

    NASA Astrophysics Data System (ADS)

    Augousti, A.; McConnell, G.

    2009-07-01

    the Conference Department of the Institute of Physics for their invaluable support in organising this event. We are especially grateful to Jon Mackew for his responsive and efficient day-to-day handling of this event, as well as to Claire Garland, Jenny Bremner and Jane Lowe for their planning and management of this combined event. We hope that the conference authors, participants and a wider audience will find these proceedings to be of interest and to serve as a useful reference text. Andy Augousti Conference Chairman Gail McConnell Conference Secretary

  6. Extreme weather impacts on European networks of transport

    NASA Astrophysics Data System (ADS)

    Leviakangas, P.

    2012-04-01

    : Pekka Leviäkangas, Anu Tuominen, Riitta Molarius, Heta Kojo, Jari Schabel, Sirra Toivonen, Jaana Keränen, Johanna Ludvigsen, Andrea Vajda, Heikki Tuomenvirta, Ilkka Juga, Pertti Nurmi, Jenni Rauhala, Frank Rehm, Thomas Gerz, Thorsten Muehlhausen, Juha Schweighofer, Silas Michaelides, Matheos Papadakis, Nikolai Dotzek (†), Pieter Groenemeijer.

  7. From One Extreme to Another: Tsunami, Hurricane, and El Niño Observations from the NDBC Ocean Observing Systems of Systems

    NASA Astrophysics Data System (ADS)

    Bouchard, R. H.; Henderson, D.; Locke, L.

    2008-05-01

    NOAA`s National Data Buoy Center (NDBC) operates a system of ocean observing systems (NOOSS) to provide critical information in real-time during extreme events, such as tsunamis, hurricanes, and El Niños. NDBC recently completed the 39-station array of tsunameters that employ the second-generation Deep-ocean and Assessment and Reporting of Tsunamis (DART II) technology. The tsunameter array spans the Pacific Ocean and the western Atlantic Ocean providing real-time water-level measurements and tsunami detection times. At depths down to 6000 meters the tsunameters can send information in less than 3 minutes to the Tsunami Warning Centers in Hawaii and Alaska and to the international tsunami community. The tsunameters have provided data for the Kuril tsunamis of November 2006 and January 2007, the Peru tsunamis of August and September 2007, and the southern Sumatra tsunami of September 2007. In 2006, NDBC assumed operations of the Tropical Atmosphere Ocean Array (TAO), the "crown jewel" of the Global Climate Observation System. TAO provides real-time data for improved detection, understanding, and prediction of El Niño and La Niña. The 55-buoy TAO array spans the central and eastern equatorial Pacific. Real-time and post-deployment recovery data support climate analysis and forecasts. For more than 30 years, NDBC has operated a system of buoys and coastal automated stations for meteorological and oceanographic observations that support real-time weather analysis, forecasting, and warnings. These "traditional" NDBC stations measure winds, waves, temperature, and humidity routinely. Some stations are augmented with ocean current and temperature and salinity (conductivity) sensors. In recent years, among the Gulf of Mexico and Caribbean hurricanes passing in proximity to NDBC stations include Ivan in 2004, Cindy, Emily, Dennis, Katrina, Rita, and Wilma in 2005, Ernesto in 2006, and Dean and Felix in 2007 as well as numerous tropical storms. Not confined to tropical

  8. Thermal history and evolution of the South Atlantic passive continental margin in northern Namibia

    NASA Astrophysics Data System (ADS)

    Menges, Daniel; Karl, Markus; Glasmacher, Ulrich Anton

    2013-04-01

    northwestern Namibia, and their relationship to continental breakup, Journal of the Geological Society of London 152: 97-104. Renne, P.R., Ernesto, M., Pacca, I.I., G. Coe, R.S., Glen, J. M., Prévot, M., Perrin, M., 1992. The age of Paraná flood volcanism, rifting of Gondwanaland, and the Jurassic -Cretaceous boundary. Science 258, 975 - 979. Stewart, K. S., Turner, S., Kelly, S., Hawkesworth, C. J., Kirstein, L. and Mantovani, M. S. M., 1996. 3D 40Ar-39Ar geochronology in the Parańa flood basalt province, Earth and Planetary Science Letters 143: 95-110. Turner, S., Hawkesworth, C., Gallagher, K., Stewart, K., Peate, D. and Mantovani, M., 1996. Mantle plumes, flood basalts, and thermal models for melt generation beneath continents: Assessment of a conductive heating model and application to the Parana, Journal of Geophysical Research 101: 11503- 11518.

  9. Early Mesozoic cooling from low temperature thermochronology in N Spain and N Africa

    NASA Astrophysics Data System (ADS)

    Grobe, R.; Alvarez-Marrón, J.; Glasmacher, U. A.; Menéndez-Duarte, R.

    2009-04-01

    , Volume 94, Issue 2, pp.193-203. Ghorbal, B.; Bertotti, G.; Foeken, J.; Andriessen, P. (2008). Unexpected Jurassic to Neogene vertical movements in ‘stable' parts of NW Africa revealed by low temperature geochronology. Terra Nova, Volume 20, Number 5, October 2008 , pp. 355-363(9). Jourdan, F.; Marzoli, A.; Bertrand, H.; Cosca, M.; Fontignie, D. (2003). The Northernmost CAMP: 40Ar/39Ar Age, petrology and Sr-Nd-Pb isotope geochemistry of the Kerforne Dike, Brittany, France. In: Hames, W.E., McHone, J.G., Renne, P.R., Ruppel, C. (Eds.), The Central Atlantic Magmatic Province: Insights From Fragments of Pangea. AGU, Geophys. Mon., vol. 136, pp. 209-226. Juez-Larré, J. (2003). Post Late Paleozoic tectonothermal evolution of the northeastern margin of Iberia, assessed by fission-track and (U-T)/He analysis: a case history from the Catalan Coastal Ranges. Ph.D. thesis, Free University of Amsterdam. 200 pp. Marzoli, A.; Renne, P.R.; Piccirillo, E.M.; Ernesto, M.; Bellieni, G.; De Min, A. (1999). Extensive 200-million-year-old continental food basalts of the Central Atlantic magmatic province. Science 284, 616-618. Pe-Piper, G.; Jansa, L.F.; Lambert, R.St.-J. (1992). Early Mesozoic magmatism of the Eastern Canadian margin. In: Puffer, J.H., Ragland, P.C. (Eds.), Eastern North American Mesozoic magmatism. Geol. Soc. Am., Spec. Paper, vol. 268, pp. 13-36. Wilson, M. (1997). Thermal evolution of the Central Atlantic passive margins: continental break-up above a Mesozoic super-plume. J. Geol. Soc. (Lond.) 154, 491-495.

  10. The14C 'bomb' pulse in selected European stalagmites as a tracer of soil carbon cycling dynamics

    NASA Astrophysics Data System (ADS)

    Rudzka, D.; McDermott, F.

    2012-04-01

    carbon incorporated into these stalagmites originates predominantly from decomposition of old, recalcitrant organic matter. By contrast, the Grotta di Ernesto (N. Italy) site which is also overlain by a thick soil cover with dense vegetation, but with a low MAAT, does not show a strongly attenuated 14C 'bomb' pulse, possibly reflecting higher inputs of young soil carbon and the preferential decomposition of young, labile carbon at low temperatures. New results from the Monte Carlo inverse modelling indicate young MSCA values (c. 40 years) consistent with a previously published forward model. Overall, these results are important because they suggest that decomposition processes in warmer conditions are dominated by old soil organic matter, implying greater temperature sensitivity of old, recalcitrant carbon. Modelled MSCA values from speleothems that exhibit low soil carbon storage capacity (sparse vegetation, thin soil cover) and high MAAT indicate that decomposition at these sites is dominated by young soil carbon.

  11. Dynamics of Populations of Planetary Systems (IAU C197)

    NASA Astrophysics Data System (ADS)

    Knezevic, Zoran; Milani, Andrea

    2005-05-01

    population of asteroids in the 2:1 mean motion resonance with Jupiter revised Miroslav Broz, D. Vokrouhlicky, F. Roig, D. Nesvorny, W. F. Bottke and A. Morbidelli; 22. On the reliability of computation of maximum Lyapunov Characteristic Exponents for asteroids Zoran Knezevic and Slobodan Ninkovic; 23. Nekhoroshev stability estimates for different models of the Trojan asteroids Christos Efthymiopoulos; 24. The role of the resonant 'stickiness' in the dynamical evolution of Jupiter family comets A. Alvarez-Canda and F. Roig; 25. Regimes of stability and scaling relations for the removal time in the asteroid belt: a simple kinetic model and numerical tests Mihailo Cubrovic; 26. Virtual asteroids and virtual impactors Andrea Milani; 27. Asteroid population models Alessandro Morbidelli; 28. Linking Very Large Telescope asteroid observations M. Granvik, K. Muinonen, J. Virtanen, M. Delbó, L. Saba, G. De Sanctis, R. Morbidelli, A. Cellino and E. Tedesco; 29. Collision orbits and phase transition for 2004 AS1 at discovery Jenni Virtanen, K. Muinonen, M. Granvik and T. Laakso; 30. The size of collision solutions in orbital elements space G. B. Valsecchi, A. Rossi, A. Milani and S. R. Chesley; 31. Very short arc orbit determination: the case of asteroid 2004 FU162 Steven R. Chesley; 32. Nonlinear impact monitoring: 2-dimensional sampling Giacomo Tommei; 33. Searching for gravity assisted trajectories to accessible near-Earth asteroids Stefan Berinde; 34. KLENOT - Near Earth and other unusual objects observations Michal Kocer, Jana Tichá and M. Tichy; 35. Transport of comets to the Inner Solar System Hans Rickman; 36. Nongravitational Accelerations on Comets Steven R. Chesley and Donald K. Yeomans; 37. Interaction of planetesimals with the giant planets and the shaping of the trans-Neptunian belt Harold F. Levison and Alessandro Morbidelli; 38. Transport of comets to the outer p

  12. Analysis of airborne LiDAR as a basis for digital soil mapping in Alpine areas

    NASA Astrophysics Data System (ADS)

    Kringer, K.; Tusch, M.; Geitner, C.; Meißl, G.; Rutzinger, M.

    2009-04-01

    Especially in mountainous regions like the Alps the formation of soil is highly influenced by relief characteristics. Among all factors included in Jenny's (1941) model for soil development, relief is the one most commonly used in approaches to create digital soil maps and to derive soil properties from secondary data sources (McBratney et al. 2003). Elevation data, first order (slope, aspect) and second order derivates (plan, profile and cross-sectional curvature) as well as complex morphometric parameters (various landform classifications, e.g., Wood 1996) and compound indices (e.g., topographic wetness indices, vertical distance to drainage network, insolation) can be calculated from digital elevation models (DEM). However, while being an important source of information for digital soil mapping on small map scales, "conventional" DEMs are of limited use for the design of large scale conceptual soil maps for small areas due to rather coarse raster resolutions with cell sizes ranging from 20 to 100 meters. Slight variations in elevation and small landform features might not be discernible even though they might have a significant effect to soil formation, e.g., regarding the influence of groundwater in alluvial soils or the extent of alluvial fans. Nowadays, Airborne LiDAR (Light Detection And Ranging) provides highly accurate data for the elaboration of high-resolution digital terrain models (DTM) even in forested areas. In the project LASBO (Laserscanning in der Bodenkartierung) the applicability of digital terrain models derived from LiDAR for the identification of soil-relevant geomorphometric parameter is investigated. Various algorithms which were initially designed for coarser raster data are applied on high-resolution DTMs. Test areas for LASBO are located in the region of Bruneck (Italy) and near the municipality of Kramsach in the Inn Valley (Austria). The freely available DTM for Bruneck has a raster resolution of 2.5 meters while in Kramsach a DTM with

  13. ASK Magazine. Volume 4; [Volume Four; July 2001

    NASA Technical Reports Server (NTRS)

    Laufer, Alexander (Editor); Collins, Michelle (Editor); Post, Todd (Editor)

    2001-01-01

    Not everyone looks forward to reviews. Dog and pony shows I've heard them called. Exercises in putting together Power Point charts. Other less tasteful descriptions abound, but I won't bother to summarize these. This is a tasteful magazine after all. In this issue, we've assembled a number of articles on the subject of reviews, particularly as they occur in the NASA project world (although we cover the subject from other perspectives too). Veteran NASA Project Manager Marty Davis, in his article Tangled Up in Reviews, writes, "Many people regard reviews as something onerous, but if we can tailor them so that they're not as bad as they have to be, it can be a great benefit to a project manager." Great benefits to the project manager is what you'll find in Marty's story as he describes not only tailoring a single review but the entire lifecycle of reviews in his project. In Jo Gunderson's story, Calling Down the Fire on Yourself, she describes a young NASA Project Manager who does just that because, as he tells her, I needed to know if there was anything that I had overlooked." How he brings fire down on himself at his project review will inspire other young Project Managers, seasoned managers, and anyone else who reads this powerful story. Leave Your Ego at the Door, by Jenny Baer-Reidhart and Ray Morgan, uses reviews to highlight the creative collaboration that existed between NASA and one of its industry partners. The protagonist of this story is a company who took advantage of NASAs expert advice during reviews and accomplished amazing feats as a result. The story also examines how disasters might well have been avoided by two other NASA partners had they been as open-minded as the first company during their reviews. In Roy Malone's story, Standing Offer, a NASA Project Manager describes how he used a crack review team to help him pass a critical certification inspection while he was a Combat Systems Officer in the Navy. Malone invited the reviewers to come back

  14. Phosphorus distribution and cycling along a climosequence: insights from stable isotopes

    NASA Astrophysics Data System (ADS)

    Tamburini, Federica; von Sperber, Christian; Helfenstein, Julian; Vitousek, Peter; Chadwick, Oliver; Frossard, Emmanuel

    2016-04-01

    Climate is beside parent material, biota, topography, time, and human impact a state-factor controlling soil and ecosystem development (Amundson and Jenny, 1991). Whereas a lot of research has been carried out on the effect of most of these factors on phosphorus (P) cycling (Turner and Condron, 2013), less has been done on the effect of climate and, more in particular, precipitation. One of the reasons for that is the difficulty of finding suitable soil climosequences, i.e. sites on a given parent material of a given age exposed for the same time to different climates with little impact of human activity (Vitousek, 2004). Soils found on the Kohala Mountain, Hawaii, provide ideal conditions to investigate the effect of increased precipitation on processes affecting the distribution and cycling of P in soils. These soils have developed on the same parent material, the 150 ky old Hawi lava flow, which consists of alkali basalts with high contents of apatite. Along the climosequence, mean annual precipitation ranges from <200 to >3000 mm. The distribution of minerals, macro- and micronutrients, and the abrupt changes in soil chemical properties are strongly influenced by the precipitation gradient. Organic matter and non-crystalline minerals increase along the climosequence, with amorphous minerals dominating at high rainfall. We present here preliminary results from a Swiss National Fund project (CLIMP: Forms and dynamics of soil phosphorus along a climosequence on basalt-derived soils), aiming at a better understanding of the links between pedogenic processes and P dynamics. Three domains are present along the climosequence: a mostly dry domain characterized by wind erosion and nutrient depletion at the top soil; an intermediate domain with dry and wet cycles, characterized by nutrient biological uplift and increasing presence of amorphous minerals; and a mostly wet domain, where amorphous minerals dominate and nutrients are lost from the top soil (Vitousek and

  15. Space Archeology Overview at Gordion: 2010 to 2012

    NASA Technical Reports Server (NTRS)

    Tucker, Compton J.; Slayback, Daniel; Nigro, Joseph D.; Yager, Karina A.

    2014-01-01

    In fiscal years 2010, 2011, and 2012, Compton Tucker was the principal investigator of a NASA Space Archaeology project that worked at Gordion, in Central Turkey. Tucker was assisted by an excellent team of co-workers including Joseph Nigro and Daniel Slayback of Science Systems Applications Incorporated, Jenny Strum of the University of New Mexico, and Karina Yager, a post doctoral fellow at NASA/GSFC. This report summaries their research activities at Gordion for the field seasons of 2010, 2011, and 2012. Because of the possible use of our findings at Gordion for tomb robbing there and/or the encouragement of potential tomb robbers using our geophysical survey methods to locate areas to loot, we have not published any of our survey results in the open literature nor placed any of these results on any web sites. These 2010- 2012 survey results remain in the confidential archives of the University of Pennsylvania's University Museum of Archaeology and Anthropology, the group that leads the Gordion Excavation and Research Project. Excavations are planned for 2013 at Gordion, including several that will be based upon the research results in this report. The site of Gordion in central Turkey, famous as the home of King Midas, whose father's intricately tied knot gave the site its name, also served as the center of the Phrygian kingdom that ruled much of Central Anatolia in Asia Minor during the early first millennium B.C. Gordion has been a University of Pennsylvania Museum of Archaeology and Anthropology excavation project since 1950, yet the site is incompletely published despite six decades of research. The primary obstacles related to the site and its preservation were two problems that NASA technology could address: (1) critical survey errors in the hundreds of maps and plans produced by the earlier excavators, most of which used mutually incompatible geospatial referencing systems, that prevented any systematic understanding of the site; and (2) agricultural

  16. A Geophysical Study in Grand Teton National Park and Vicinity, Teton County, Wyoming: With Sections on Stratigraphy and Structure and Precambrian Rocks

    USGS Publications Warehouse

    Behrendt, John Charles; Tibbetts, Benton L.; Bonini, William E.; Lavin, Peter M.; Love, J.D.; Reed, John C.

    1968-01-01

    An integrated geophysical study - comprising gravity, seismic refraction, and aeromagnetic surveys - was made of a 4,600-km2 area in Grand Teton National Park and vicinity, Wyoming, for the purpose of obtaining a better understanding of the structural relationships in the region. The Teton range is largely comprised of Precambrian crystalline rocks and layered metasedimentary gneiss, but it also includes granitic gneiss, hornblende-plagioclase gneiss, granodiorite, and pegmatite and diabase dikes. Elsewhere, the sedimentary section is thick. The presence of each system except Silurian provides a chronological history of most structures. Uplift of the Teton-Gros Ventre area began in the Late Cretaceous; most of the uplift occurred after middle Eocene time. Additional uplift of the Teton Range and downfaulting of Jackson Hole began in the late Pliocene and continues to the present. Bouguer anomalies range from -185 mgal over Precambrian rocks of the Teton Range to -240 mgal over low-density Tertiary and Cretaceous sedimentary rocks of Jackson Hole. The Teton fault (at the west edge of Jackson Hole), as shown by steep gravity gradients and seismic-refraction data, trends north-northeast away from the front of the Teton Range in the area of Jackson Lake. The Teton fault either is shallowly inclined in the Jenny Lake area, or it consists of a series of fault steps in the fault zone; it is approximately vertical in the Arizona Creek area. Seismic-refraction data can be fitted well by a three-layer gravity model with velocities of 2.45 km per sec for the Tertiary and Cretaceous rocks above the Cloverly Formation, 3.9 km per sec for the lower Mesozoic rocks, and 6.1 km per sec for the Paleozoic (limestone and dolomite) and Precambrian rocks. Gravity models computed along two seismic profiles are in good agreement (sigma=+- 2 mgal) if density contrasts with the assumed 2.67 g per cm2 Paleozoic and Precambrian rocks are assumed to be -0.35 and -0.10 g per cm2 for the 2

  17. Possible continuous-type (unconventional) gas accumulation in the Lower Silurian "Clinton" sands, Medina Group and Tuscarora Sandstone in the Appalachian Basin; a progress report of the 1995 project activities

    USGS Publications Warehouse

    Ryder, Robert T.; Aggen, Kerry L.; Hettinger, Robert D.; Law, Ben E.; Miller, John J.; Nuccio, Vito F.; Perry, William J.; Prensky, Stephen E.; Filipo, John J.; Wandrey, Craig J.

    1996-01-01

    INTRODUCTION: In the U.S. Geological Survey's (USGS) 1995 National Assessment of United States oil and gas resources (Gautier and others, 1995), the Appalachian basin was estimated to have, at a mean value, about 61 trillion cubic feet (TCF) of recoverable gas in sandstone and shale reservoirs of Paleozoic age. Approximately one-half of this gas resource is estimated to reside in a regionally extensive, continuous-type gas accumulation whose reservoirs consist of low-permeability sandstone of the Lower Silurian 'Clinton' sands and Medina Group (Gautier and others, 1995; Ryder, 1995). Recognizing the importance of this large regional gas accumulation for future energy considerations, the USGS initiated in January 1995 a multi-year study to evaluate the nature, distribution, and origin of natural gas in the 'Clinton' sands, Medina Group sandstones, and equivalent Tuscarora Sandstone. The project is part of a larger natural gas project, Continuous Gas Accumulations in Sandstones and Carbonates, coordinated in FY1995 by Ben E. Law and Jennie L. Ridgley, USGS, Denver. Approximately 2.6 man years were devoted to the Clinton/Medina project in FY1995. A continuous-type gas accumulation, referred to in the project, is a new term introduced by Schmoker (1995a) to identify those natural gas accumulations whose reservoirs are charged throughout with gas over a large area and whose entrapment does not involve a downdip gas-water contact. Gas in these accumulations is located downdip of the water column and, thus, is the reverse of conventional-type hydrocarbon accumulations. Commonly used industry terms that are more or less synonymous with continuous-type gas accumulations include basin- centered gas accumulation (Rose and others, 1984; Law and Spencer, 1993), tight (low-permeability) gas reservoir (Spencer, 1989; Law and others, 1989; Perry, 1994), and deep basin gas (Masters, 1979, 1984). The realization that undiscovered gas in Lower Silurian sandstone reservoirs of the

  18. Digital soil mapping: A Brief History and Lessons

    NASA Astrophysics Data System (ADS)

    Minasny, Budiman; McBratney, Alex

    2014-05-01

    Digital soil mapping was formalised in a 2003 paper by McBratney et al. Since the term was introduced, there has been a huge increase on the research and papers in this topic. An IUSS working group was formed, and the GlobalSoilMap project was initiated. The research topic has become a successful formal discipline in soil science. Here we will have a brief look at the history of (digital) soil mapping and perhaps draw some lessons. The use of computer or numerical models to automatically map the soil is not new, its origin is difficult to pin-point. In 1925, before the age of digital computer and electronic sensors, Bernard Keen and William Haines conceived and built the first on-the-go soil strength sensor, made the measurements and made the first high-resolution digital soil map, and discovered the reality and importance of soil spatial variation. However this work was too far ahead of its time and was not taken up by contemporaries and is now largely forgotten. Since Jenny's (1941) factorial model was introduced, many have formulated topofunctions or climofunctions etc, however most of these works and empirical functions were not used for mapping, and were mostly exploratory data analysis. The idea of predicting soil across the landscapes with few equations seemed to be too radical. Work in the 1970s started to look at using remote sensing and infrared spectroscopy to map soil properties. The Laboratory for Applications of Remote Sensing in Purdue, proposed 'Spectral Mapping of Soil Organic Matter' using soil reflectance from the visible and near infrared signal of an airborne scanner. The lab. was very active and has produced lots of innovative research in the field of remote sensing, generating the first soil spectral library, predicting soil carbon from NIR, mapping soil carbon digitally. However maybe they too were ahead of their time, it took another 30 years before the resurgence of the soil spectroscopy work in the 2000s. It is an enormously active area

  19. Virtual Telescope Observes Record-Breaking Asteroid

    NASA Astrophysics Data System (ADS)

    2001-08-01

    to that of our own Moon), a diameter of no less than 1200 km results. Assuming instead an albedo of 2001 KX76 of only 4 percent - a typical value for icy cometary nuclei - leads to the even larger (although less likely) value of 1400 km. A real name for 2001 KX76 Thanks to the work of this group of astronomers, the orbit of 2001 KX76 may now be considered relatively secure and it may therefore soon receive a real name. Following astronomical tradition, the discoverers have the right to make a suggestion. The current custom dictates that a Kuiper Belt Object must be given a mythological name associated with creation. The name must then be confirmed by the International Astronomical Union (IAU) through its Committee on Small Body Nomenclature before becoming official. With a little bit of luck... The observations made with ESO's Wide Field Imager were crucial for this work to succeed in that they allowed the object's path to be tracked back in time. However, luck admittedly also played a key role. "These observations were originally made for a completely different project" , says Gerhard Hahn , team-leader for the project. "And we found the image of 2001 KX76 right at the edge of the WFI frames" . Jenni Virtanen , another member of the team, agrees: "And if we hadn't used our powerful methods to improve the orbit we would still be searching through the archives." Arno Gnaedig , a German amateur astronomer and team member, performed the new and accurate position measurements and also calculated the new orbit on his home computer: "To me this is a wonderful example of the fruitful collaboration that can take place between well-equipped amateur astronomers and professional astronomers ", he says. "The Web and the access to 'virtual observatories' means that amateur astronomers - located far from any 'real' professional telescopes - can also make important contributions" . Following this success, the group is currently working on a study of the long-term orbital evolution

  20. CALL FOR PAPERS: Special issue on the random search problem: trends and perspectives

    NASA Astrophysics Data System (ADS)

    da Luz, Marcos G. E.; Grosberg, Alexander Y.; Raposo, Ernesto P.; Viswanathan, Gandhi M.

    2008-11-01

    This is a call for contributions to a special issue of Journal of Physics A: Mathematical and Theoretical dedicated to the subject of the random search problem. The motivation behind this special issue is to summarize in a single comprehensive publication, the main aspects (past and present), latest developments, different viewpoints and the directions being followed in this multidisciplinary field. We hope that such a special issue could become a particularly valuable reference for the broad scientific community working with the general random search problem. The Editorial Board has invited Marcos G E da Luz, Alexander Y Grosberg, Ernesto P Raposo and Gandhi M Viswanathan to serve as Guest Editors for the special issue. The general question of how to optimize the search for specific target objects in either continuous or discrete environments when the information available is limited is of significant importance in a broad range of fields. Representative examples include ecology (animal foraging, dispersion of populations), geology (oil recovery from mature reservoirs), information theory (automated researchers of registers in high-capacity database), molecular biology (proteins searching for their sites, e.g., on DNA ), etc. One reason underlying the richness of the random search problem relates to the `ignorance' of the locations of the randomly located `targets'. A statistical approach to the search problem can deal adequately with incomplete information and so stochastic strategies become advantageous. The general problem of how to search efficiently for randomly located target sites can thus be quantitatively described using the concepts and methods of statistical physics and stochastic processes. Scope Thus far, to the best of our knowledge, no recent textbook or review article in a physics journal has appeared on this topic. This makes a special issue with review and research articles attractive to those interested in acquiring a general introduction to the

  1. PREFACE: 4th National Meeting in Chaos, Complex System and Time Series

    NASA Astrophysics Data System (ADS)

    Raúl Hernández Montoya, Alejandro; Hernández Lemus, Enrique; Rubén Luévano Enríquez, José; Rodríguez Achach, Manuel Enrique; Vargas Madrazo, Carlos Ernesto

    2013-12-01

    solutions of a discrete-time Hamilton--Jacobi equation). The present volume contains a rigorous selection of the lectures presented at the NMCCSTS4. All papers were peer reviewed and we consider the high quality and the wide range of topics covered here displays the high level that the community of complexity sciences is reaching in our country. We would like to thank all of the speakers, participants and the members of the Organizing Committee, also we would like to express our gratitude to all students and support personal involved with the logistic and technical aspects of the organization of our event. This IV edition of the National Meeting on Caos, Complex System and Time Series was sponsored by the following organizations and institutions, we warmly thank all of them: Universidad Veracruzana, IF-BUAP, UAM Azcapotzalco, INMEGEN, Conacyt (155492), all them from México and the Ministero degli Affari Esteri (MAE) from Italy. A R Hernández Montoya University of Veracruz M E Rodríguez Achach University of Veracruz E Hernández Lemus National Institute of Genomic Medicine J R Luévano Enríquez Universidad Autónoma Metropolitana-Azcapotzalco C E Vargas Madrazo University of Veracruz Organizing Committee José Luis Carrillo Estrada Instituto de Física, Benemerita Universidad Autónoma de Puebla, carrillo@sirio.ifuap.buap.mx José Rubén Luévano Enríquez Universidad Autónoma Metropolitana-Azcapotzalco, jrle@correo.azc.uam.mx Enrique Hernández Lemus National Institute of Genomic Medicine, ehernandez@inmegen.gob.mx Alejandro Raúl Hernández Montoya University of Veracruz, alhernandez@uv.mx Norma Bagatella Flores University of Veracruz, nbagatella@uv.mx Adrian Arturo Huerta Hernández University of Veracruz, adhuerta@uv.mx Manuel Enrique Rodríguez Achach University of Veracruz, manurodriguez@uv.mx Carlos Ernesto Vargas Madrazo University of Veracruz, cavargas@uv.mx Sol Haret Baez Barrios University of Veracruz, arbaez@uv.mx Héctor Francisco Coronel Brizio University

  2. Silicate Inclusions in IAB Irons: Correlations Between Metal Composition and Inclusion Properties, and Inferences for Their Origin

    NASA Astrophysics Data System (ADS)

    Benedix, G. K.; McCoy, T. J.; Keil, K.

    1995-09-01

    IAB irons are the largest group of iron meteorites, exhibit a large range of siderophile element concentrations in their metal, and commonly contain silicate inclusions with roughly chondritic composition. They are closely related to IIICD irons [1,2] and their inclusions resemble winonaites [3]. It has been suggested that IAB's and IIICD's formed in individual impact melt pools [4,2] on a common parent body. However, it has also been suggested that fractional crystallization [5,6] of a S-saturated core could produce the observed siderophile element trends. Metal composition is correlated with silicate inclusion mineralogy in IIICD's [1], indicating reactions between solid silicates and the metallic magma in a core. These trends observed in IIICD's differ from those in IAB's, suggesting different parent bodies. A bi-modal grouping, based primarily on mineralogy and mineral abundances, was suggested for IAB inclusions [7]. However, recent recoveries of several new silicate-bearing IAB's, along with the emergence of new ideas on their origins, prompted a comprehensive study to document more fully the range of inclusions within IAB irons, to examine possible correlations between the compositions of the metallic host and the silicate inclusions, and to elucidate the origin of IAB irons. We are studying troilite-graphite-silicate inclusions in 24 IAB irons with Ni concentrations ranging from 6.6-25.0%. These include Odessa and Copiapo types [7], newly recovered meteorites (e.g., Lueders [8]) and meteorites with extreme Ni contents (e.g., Jenny's Creek, 6.8%; San Cristobal, 25.0% [9]). The inclusions exhibit a range of textures from recrystallized to partial melts (e.g., Caddo County [10]). Rigorous classification [7] is hampered by heterogeneities between group meteorites, between different samples of distinct meteorites, and within individual inclusions. While intergroup heterogeneities make comparisons between the suite of IAB's somewhat difficult, some general trends

  3. Should Climatologists and Spatial Planners Interact? Weather regulation as an ecosystem service to be considered in the land-use planning field.

    NASA Astrophysics Data System (ADS)

    Perrin, Mathieu; De Noblet-Ducoudré, Nathalie; Strada, Susanna; Stéfanon, Marc; Torre, André

    2016-04-01

    scope of solutions to be considered in the spatial planning field. Regional meteorology/climatology has demonstrated over the past decades that changes in land-uses and/or land cover may have substantial impacts on a) mean regional/local climate (Lobell & Bonfils, 2008), b) the magnitude and duration of extreme events (e.g. Marshall et al., 2004, Davin et al., 2014), c) air quality and therefore human's and ecosystems' health (e.g. Corchnoy et al. 1992, Hewitt et al., 2009). Such studies support the hypothesis that a careful regional climate modelling may help to refine the global climate projections and assess the local benefits or drawbacks of various land use/land cover policies. There is however a lack of studies at such spatial scales (from local to regional) to carefully quantify the impacts realistic land scenarios may have on atmospheric conditions (e.g. temperature, humidity, air quality, winds, incoming radiation). We have started to think about ways to evaluate those at the French national scale. That implies the choice of ad-hoc models, scenarios, data for evaluation, … that we will discuss. Our proposal is that in fine the regulation of the atmospheric boundary layer (where we live) may be considered as a service that land uses/cover/management may impact and that we need to study as much as other ecosystem services are. ____________ References: Bulkeley, H. (2006) A changing climate for spatial planning? In: Planning Theory and Practice, 7(2): 203-214. Corchnoy, S.B.; Arey, J.; Atkinson, R. (1992) Hydrocarbon emission from twelve urban shade trees of the Los Angeles, California, air basin. In: Atmospheric Environment, 26B(3): 339-348. Davoudi, S.; Crawford, Jenny; Mehmood, A. (2009) Planning for Climate Change: Strategies for Mitigation and Adaptation for Spatial Planners. London: Earthscan, 344 p. Davin, E. L.; Seneviratne, S. I.; Ciais, P.; Olioso, A.; Wang, T. (2014) Preferential cooling of hot extremes from cropland albedo management, Proceedings of

  4. Physical data of soil profiles formed on late Quaternary marine terraces near Santa Cruz, California

    USGS Publications Warehouse

    Munster, Jennie; Harden, Jennifer W.

    2002-01-01

    Margarita Sandstone. The Santa Cruz Mudstone is a thin to medium-bedded siliceous mudstone with nonsiliceous mudstone and siltstone and minor amounts of sandstone. The siliceous nature implies organic deposition in a quiescent, deep-water environment. Bedrock is mantled by 1–4 meters of medium to coarse-grained regressive beach sediment and fluvial deposits from the Ben Lomond Mountains. Terrace age increases with elevation above sea level, and weathering of primary minerals increases with age. The suite of soils formed on the terraces is referred to as a soil chronosequence. Soil chronosequences, important tools in characterizing natural weathering rates, are defined as a group of soils that differ in age and therefore in duration of weathering but have similar climatic conditions, vegetation, geomorphic position, and parent material (Jenny, 1941; Birkland, 1999). Soils are frequently useful indicators of geomorphic age (Muhs, 1982; Switzer and others, 1988) and are a function of pedogenic and/or eolian processes. Some aspects of soil development can be episodic but when viewed on large time scales can be perceived as continuous (Switzer and others, 1988). The age of the soil may be constrained by the age of the deposit, since soil formation generally commences when deposition has ceased (Birkland, 1999). Dating of the terraces provides an unprecedented opportunity to study weathering and soil-formation rates (Perg and others, 2001; Hanks and others, 1984; Bradley and Griggs, 1976; Bradley and Addicott, 1968; Bradley, 1956). Ages of the terraces recently dated by cosmogenic radionuclide are, starting with the youngest, 65, 92, 137, 139, and 226 k.y. (Perg and others, 2001). However, these ages are much younger than recent radiometric dates on mollusk shells (Muhs, U.S. Geological Survey, personal communication, 2002; Bradley and Addicott, 1968). For this study, soils were sampled on five terraces. Terrace one in the Lighthouse Field along Westcliff in Santa Cruz was the

  5. The 26th International Physics Olympiad: On top down under!

    NASA Astrophysics Data System (ADS)

    1996-01-01

    As they opened the plane door on arrival at Canberra it was like stepping inside a freezer. I had escaped from the heatwave in Britain to experience winter in Australia. I have not found anyone who believes that there was really frost! The Australian welcome did its best to combat the cold, however, and Professor Rod Jury had soon introduced our guides and got us settled in on the campus of Canberra University. The British team of five students, selected through the British Physics Olympiad, were: Alan Bain of Birkenhead School, Chris Blake of King Edward VI School, Southampton, Richard Davies of Dulwich College, Tom Down of Embley Park School, Romsey and Chris Webb of Royal Grammar School, Worcester. The two Leaders of the party were Cyril Isenberg of the University of Kent and Guy Bagnall of Harrow School. Chris Robson of St Bee's School and myself from Stoke on Trent Sixth form College were interested Observers and Guy's wife, Jenny, completed the party. For the old hands there were many friendships stretching back years to renew, and with 51 countries this year many new ones to be made. Â Photo Figure 1. Photograph taken by C Robson of the British Physics Team immediately after the Awards Ceremony in Canberra in July 1995. From left to right: Chris Webb, Richard Davies, Tom Down, Alan Bain and Chris Blake. In addition to the confusion caused by the Sun being in the North and the Moon appearing to lie on its back, we had to get used to the flocks of chattering parrots browsing on the lawns and the kangaroos on campus! Everyone was presented with a boomerang and there were several sessions introducing the art of throwing them, even in the dark! The Opening Ceremony was colourful and a good mix of ceremony and fun with the Aboriginal entertainment and the Flame of Science to be lit. This was followed by my first examiners' meeting. Once the questions have been introduced no one is allowed to leave the group until ten hours later when the students are in bed! The

  6. Main Parameters of Soil Quality and it's Management Under Changing Climate

    NASA Astrophysics Data System (ADS)

    László Phd, M., ,, Dr.

    2009-04-01

    ). Gregorich et al. (1994) state that "soil quality is a composite measure of both a soil's ability to function and how well it functions, relative to a specific use." Increasingly, contemporary discussion of soil quality includes the environmental cost of production and the potential for reclamation of degraded soils (Várallyay, 2005). Reasons for assessing soil quality in an agricultural or managed system may be somewhat different than reasons for assessing soil quality in a natural ecosystem. In an agricultural context, soil quality may be managed, to maximize production without adverse environmental effect, while in a natural ecosystem, soil quality may be observed, as a baseline value or set of values against which future changes in the system may be compared (Várallyay, 1994; Cook and Hendershot, 1996; Németh, 1996; Malcolm, 2000; Márton et al. 2007). Soil quality has historically been equated with agricultural productivity, and thus is not a new idea. Soil conservation practices to maintain soil productivity are as old as agriculture itself, with documentation dating to the Roman Empire (Jenny, 1961). The Storie Index (Storie, 1932) and USDA Land Capability Classification (Klingebiel and Montgomery, 1973) were developed to separate soils into different quality classes. Soil quality is implied in many decisions farmers make about land purchases and management, and in the economic value rural assessors place on agricultural land for purposes of taxation. Beginning in the 1930s, soil productivity ratings were developed in the United States and elsewhere to help farmers select crops and management practices that would maximize production and minimize erosion or other adverse environmental effects (Huddleston, 1984). These rating systems are important predecessors of recent attempts to quantitatively assess soil quality. In the 1970s, attempts were made to identify and protect soils of the highest productive capacity by defining "prime agricultural lands" (Miller, 1979