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Sample records for holothuria scabra collected

  1. A New Triterpene Glycoside from the Sea Cucumber Holothuria Scabra Collected in Vietnam

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    Nguyen Van Thanh

    2017-11-01

    Full Text Available Bioassay guided fractionation led to the isolation of a new triterpene glycoside, holothurinogenin B (1 along with three known compounds, holothurin B (2, holothurin A (3, and holothurin A2 (4, from the methanol extract of the Vietnamese sea cucumber Holothuria scabra. Their structures were deduced from the spectral analysis (1D-NMR, 2D-NMR, MS and chemical evidences.

  2. Maturity Gonad Sea Cucumber Holothuria scabra Under The Month Cycle

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    Penina Tua Rahantoknam, Santi

    2017-10-01

    Gonad maturity level of the sea cucumber Holothuria scabra is important to note for selection of parent ready spawn. Sea cucumbers are giving a reaction to the treatment of excitatory spawn mature individuals only. For the determination of the level of maturity of gonads of sea cucumbers, the necessary observation of the gonads are microscopic, macroscopic and gonad maturity gonado somatic indeks (GSI). GSI value is important to know the changes that occur in the gonads quantitatively, so that time can be presumed spawning (Effendie, 1997). Reproductive cycle can be determined by observing the evolution of GSI. The study of sea cucumbers Holothuria scabra gonad maturity conducted in Langgur, Southeast Maluku. Observations were made at every cycle of the moon is the full moon phase (BP) and new moon (BB) in the period January 29, 2017 until July 23, 2017. Observations H. scabra gonad maturity level is done with surgery, observation and calculation GSI gonad histology. GSI highest value obtained in May that full moon cycle at 90% of individuals that are in the spawning stage (phase 5), then 70% of the individuals that are in the spawning stage (phase 5) in March that the full moon cycle. The results obtained show that the peak spawning H. scabra period January 2017 to July 2017 occurred on the full moon cycle in May.

  3. Nutritional components of the sea cucumber Holothuria scabra

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    Morakot Sroyraya

    2017-03-01

    Full Text Available Background: Holothuria scabrais one of the most commercially important species found in the Pacific region. The sea cucumber extracts have been widely reported to have beneficial health effects.The aim of this study was to determine the nutritional compositions of H. scabra, and compare its important nutritional contents with that of other species.Methods:The sea cucumbers were dissected, sliced into small pieces,and then freeze-dried. The nutritional compositions, including proximate composition, amino acids, fatty acids,collagen, GABA, Vitamin A, C, and E of the whole body and body wall of H. scabra,were analyzed.Results:H. scabra contained a high quantity of protein (22.50% in whole body and 55.18% in body wall and very low lipids (1.55% in whole body and 1.02% in body wall. The three most abundant amino acids found in both the whole body and body wall were glycine, glutamic acid, and proline. The main fatty acids found in the whole body were stearic acid and nervonic acid, and in the body wall were arachidonic acid and stearic acid. The whole body and body wall also contained high levels of essential amino acids, essential fatty acids, and collagen, in addition to moderate amounts of vitamin E and low amounts of GABA and vitamin C.Conclusions:The sea cucumber, H. scabra, contained high quantity of protein and very low lipid. It containedhigh essential amino acids, essential fatty acids, nervonic and arachidonic acids, and collagen, which also contained GABA, vitamin C, and vitamin E.

  4. The utilization of seagrass and macroalgae substrate for settlement of sandfish Holothuria scabra larvae

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    Lisa Fajar Indriana

    2015-05-01

    Full Text Available ABSTRACT Sandfish (Holothuria scabra is one of endangered species, which has high economical value but has not been commonly cultivated. One factor that affects the success of sandfish culture is survival of larvae during attachment phase . In this phase the larvae of H. scabra need a substrate as a place to live. This study investigated the effect of seagrass and macroalgae as the settlement substrates on the survival of H. scabra larvae. The experiment trial was conducted in UPT LPBIL LIPI Mataram using completely randomized design with five replications for each substrate treatment. The settlement substrates used were Ulva sp. (P1, Gracilaria gigas (P2, Enhalus acoroides (P3, and Eucheuma cottoni (P4. Surface area was 14x19 cm2 in each treatment. At the beginning of experiment trial, one thousand larvae were distributed into plastic tank containing 10 L seawater for each tank. After 13 days experimental period, the survival of H. scabra larvae showed significantly different among substrates treatment. The highest survival was achieved by E. acoroides (15.53±2.23%, and followed by Ulva sp. (5.07±0.74%, E. cottoni (2.57±0.25%, and G. gigas (1.96±0.17%. Keywords: settlement, Holothuria scabra, substrate, seagrass, macroalgae  ABSTRAK Teripang pasir (Holothuria scabra adalah salah satu spesies berekonomi tinggi yang terancam punah, tetapi belum banyak dibudidayakan. Salah satu faktor yang mempengaruhi tingkat keberhasilan budidaya teripang pasir adalah sintasan pada fase penempelan. Pada fase tersebut larva H. scabra memerlukan substrat sebagai tempat hidup. Penelitian ini bertujuan untuk mengevaluasi pengaruh jenis substrat lamun dan makroalga yang berbeda terhadap sintasan (STS larva teripang pasir pada fase penempelan. Penelitian dilaksanakan di Laboratorium Budidaya UPT LPBIL LIPI Mataram menggunakan metode eksperimental rancangan acak lengkap dengan lima ulangan. Perlakuan jenis substrat, yaitu: Ulva sp. (P1, Gracilaria gigas (P2

  5. PREFERENSI PENEMPELAN, PERTUMBUHAN, DAN SINTASAN LARVA TERIPANG PASIR, Holothuria scabra PADA SUBSTRAT LAMUN YANG BERBEDA

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    Lisa Fajar Indriana

    2017-01-01

    Sandfish Holothuria scabra is marine commodities with a high economic value. Overfishing of natural stocks has compelled an interest to begin aquaculture practice. Settlement is a critical phase for the planktonic larvae as they will transform to benthic form in the presence of substrate. This study aims to evaluate the settlement preferences, growth, and survival rate of H. scabra larvae settled on different seagrass leaves. The research was conducted using the Completely randomized design with four different species of seagrass leaves and five replications. The treatments consist of Enhalus acoroides (L-1, Syringodium isoetifolium (L-2, Cymodocea serrulata (L-3, and Cymodocea rotundata (L-4. Initial number of larvae was 1,000 individuals and the substrate was set with same widthof 12 cm x 17 cm for each unit. Results of the experiment indicated that settlement preference and survival rate of H. scabra larvae was significantly affected by seagrass used as substrate while no significantly differences was observed for growth of larvae. E. acoroides showed the best result with 0.26 ind. cm-2 settelement preference and 10.66% survival rate, so that suitable to be used as settlement substrate in H. scabra hatchery.

  6. T-antigen binding lectin with antibacterial activity from marine invertebrate, sea cucumber (Holothuria scabra): Possible involvement in differential recognition of bacteria

    Digital Repository Service at National Institute of Oceanography (India)

    Gowda, N.M.; Goswami, U.; Khan, M.I.

    report a study of a lectin (HSL) involved in immune response in the echinoderm, sea cucumber (Holothuria scabra). Correlative studies indicate that the expression of this defensive lectin is induced by bacterial challenge, wherein cell wall...

  7. Fat characteristics and fatty acid profile of sea cucumbers (Holothuria Scabra obtained from the coasts of the Bushehr province -Iran

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    Najmeh Jadavi

    2015-11-01

    Full Text Available Background: Sea cucumbers are belonging to echinoderms and one of the important members of the food chain in temperate ecosystems and tropical coral reefs. The medicinal and nutritional uses of these invertebrates are primordial and are important as ecological, biological and economic properties. Holothuria Scabra, as one of the most valuable commercial species of sea cucumber in the world, is the dominant species in many Persian Gulf coasts such as the Bushehr province coasts. Conspicuous characteristics such as the use of inexpensive foods in their culture, the rather rapid, easy and low cost growth and reproduction, the possibility of culture with other fish, reduce the organic substrate in pools, the broad tolerance in water factors changes such as salinity and temperature it has selected them to culture.It seems they are containing the significant amounts of nutrients, especially appreciated fatty acids. Therefore, the aims of the current study are determination of total fat content, quality and quantity evaluations of some physicochemical parameters such as acid value (AV, peroxide value (PV, and refractive index (RI as well as, identify the profile of fatty acids in the fat. Materials & Methods: In this study, after collecting the 36 samples of sea cucumbers from the coasts of the bushehr province, sample preparation, and extraction of fat, their fatty acids profile were analyzed using gas chromatography with flame ionization detector (GC-FID. Results: The peroxide and the acid values were 0.62±0.0435 and 0.7553±0.0034. The optical refractive index of the oil was 1467 at 26°C, and total fat was also 2%. Among 19 identified fatty acids obtained from the GC analysis of Holothuria Scabra oil, fatty acids: heneicosanoic acid, linoleic acid, palimitic acid, stearic acid, linoleic acid, and Meristic acid, with respectively amounts of 40.81%, 27.5%, 15.24%, 4.73%, 4.46% and 2.38% had the highest values, and other fatty acids were negligible

  8. PROFIL ASAM AMINO DAN ASAM LEMAK PADA TERIPANG PASIR (HOLOTHURIA SCABRA OLAHAN BELITUNG

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    Sherly Ridhowati

    2015-11-01

    Full Text Available Holothuria scabra is potentially marine resource and has an economic value. The research aim was: measuring the amino acid and fatty acids of two kinds of sandfish treatments for food. This research used two types of sea cucumber, sandfish A (smoked and dried and sandfish B (dried. Both of these sandfish had a different profile of total amino acids  and  fatty acids. Sandfish A has a total amino acid of 40,64% (w / w and fatty acid by 15,72% (w / w, while sandfish amino acid B has a total of 32,41% (w / w and fatty acids by 11,52% (w / w. In terms of the composition of amino acids and fatty acids both types of sandfish have a potential as a functional food. Teripang pasir Holothuria scabra merupakan sumber daya laut potensial dan bernilai ekonomis. Tujuan penelitian adalah mengukur komposisi asam amino dan asam lemak pada A. Teripang yang diasap dan dikeringkan dan B. Teripang yang hanya dikeringkan. ini menggunakan dua jenis teripang, yaitu teripang A (diasapkan dan dikeringkan dan teripang B (dikeringkan. Kedua teripang ini memiliki profil komposisi asam amino total dan asam lemak yang berbeda. Teripang A memiliki total asam amino sebesar 40,64% (b/b dan asam lemak sebesar 15,72% (b/b, sedangkan teripang B memiliki asam amino total 32,41% (b/b dan asam lemak sebesar 11,52% (b/b. Dari segi komposisi asam amino dan asam lemak kedua jenis teripang maka teripang A dan B berpotensi sebagai pangan fungsional.

  9. Effects of sandfish (Holothuria scabra) removal on shallow-water sediments in Fiji.

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    Lee, Steven; Ford, Amanda K; Mangubhai, Sangeeta; Wild, Christian; Ferse, Sebastian C A

    2018-01-01

    Sea cucumbers play an important role in the recycling and remineralization of organic matter (OM) in reef sands through feeding, excretion, and bioturbation processes. Growing demand from Asian markets has driven the overexploitation of these animals globally. The implications of sea cucumber fisheries for shallow coastal ecosystems and their management remain poorly understood. To address this knowledge gap, the current study manipulated densities of Holothuria scabra within enclosures on a reef flat in Fiji, between August 2015 and February 2016, to study the effects of sea cucumber removal on sedimentary function as a biocatalytic filter system. Three treatments were investigated: (i) high density (350 g m -2 wet weight; ca . 15 individuals); (ii) natural density (60 g m -2 ; ca . 3 individuals); and (iii) exclusion (0 g m -2 ). Quantity of sediment reworked through ingestion by H. scabra , grain size distribution, O 2 penetration depth, and sedimentary oxygen consumption (SOC) were quantified within each treatment. Findings revealed that the natural population of H. scabra at the study site can rework ca . 10,590 kg dry sediment 1,000 m -2 year -1 ; more than twice the turnover rate recorded for H. atra and Stichopus chloronotus . There was a shift towards finer fraction grains in the high treatment. In the exclusion treatment, the O 2 penetration depth decreased by 63% following a 6 °C increase in water temperature over the course of two months, while in the high treatment no such change was observed. SOC rates increased ca . two-fold in the exclusion treatment within the first month, and were consistently higher than in the high treatment. These results suggest that the removal of sea cucumbers can reduce the capacity of sediments to buffer OM pulses, impeding the function and productivity of shallow coastal ecosystems.

  10. Effects of sandfish (Holothuria scabra removal on shallow-water sediments in Fiji

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    Steven Lee

    2018-05-01

    Full Text Available Sea cucumbers play an important role in the recycling and remineralization of organic matter (OM in reef sands through feeding, excretion, and bioturbation processes. Growing demand from Asian markets has driven the overexploitation of these animals globally. The implications of sea cucumber fisheries for shallow coastal ecosystems and their management remain poorly understood. To address this knowledge gap, the current study manipulated densities of Holothuria scabra within enclosures on a reef flat in Fiji, between August 2015 and February 2016, to study the effects of sea cucumber removal on sedimentary function as a biocatalytic filter system. Three treatments were investigated: (i high density (350 g m−2 wet weight; ca. 15 individuals; (ii natural density (60 g m−2; ca. 3 individuals; and (iii exclusion (0 g m−2. Quantity of sediment reworked through ingestion by H. scabra, grain size distribution, O2 penetration depth, and sedimentary oxygen consumption (SOC were quantified within each treatment. Findings revealed that the natural population of H. scabra at the study site can rework ca. 10,590 kg dry sediment 1,000 m−2 year−1; more than twice the turnover rate recorded for H. atra and Stichopus chloronotus. There was a shift towards finer fraction grains in the high treatment. In the exclusion treatment, the O2 penetration depth decreased by 63% following a 6 °C increase in water temperature over the course of two months, while in the high treatment no such change was observed. SOC rates increased ca. two-fold in the exclusion treatment within the first month, and were consistently higher than in the high treatment. These results suggest that the removal of sea cucumbers can reduce the capacity of sediments to buffer OM pulses, impeding the function and productivity of shallow coastal ecosystems.

  11. Destruction of a Holothuria scabra population by overfishing at Abu Rhamada Island in the Red Sea.

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    Hasan, Mohamed Hamza

    2005-10-01

    Populations of Holothuria scabra at Abu Rhamada Island were investigated during 52 months, from July 1999 to October 2003. During the first 23 months (July, 1999-May, 2001) the Island had a robust population with a tri-modal size frequency distribution curve, very high densities (85.7-95.1 ind./100 m2 at the sandy habitat), high abundance (3362-3110 individuals) and biomass (46.7-34.3 kg/100 m2). Also, during this period most individuals were at depths between 4 and 6m and no individuals were recorded deeper than 15m. The population declined after harvesting began (June, 2001) and by March, 2002 the size frequency distribution showed a bimodal pattern with an obvious decrease in abundance of large individuals. There was also a slight reduction in densities (73.2-60.1 ind./100 m2 at the sandy habitat), abundance (2292-1682 individuals) and biomass (21.6-11.3 kg/100 m2), and a marked shift towards deeper waters. Overfishing reached its maximum during the final 19 months of the study, and by October, 2003, density (30.7-0.4 ind./100 m2 at the sandy habitat), abundance (802-10 individuals) and biomass (6.9-0.1 kg/100 m2) were all greatly reduced. The size frequency distribution of the population became unimodal, large animals disappeared and no recruits were seen. During this period, individuals were found at very deep depths (30 to >40 m). The study also showed that sandy substrate was the preferred habitat for H. scabra, accommodating the largest number of individuals. The population of H. scabra at Abu Rhamada Island was found to spawn biannually from 1999 to 2001, then only once during 2002 when high fishing pressure occurred, and ceased completely in 2003. The sex ratio was not significantly different from 1:1 before fishing begun, but shifted to an increasing male bias reaching 93% males by January 2003. None of the small animals remaining after January, 2003 could be sexed. Size at sexual maturity decreased from prefishing (185 mm for females and 160 mm for

  12. Acid-base physiology response to ocean acidification of two ecologically and economically important holothuroids from contrasting habitats, Holothuria scabra and Holothuria parva.

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    Collard, Marie; Eeckhaut, Igor; Dehairs, Frank; Dubois, Philippe

    2014-12-01

    Sea cucumbers are dominant invertebrates in several ecosystems such as coral reefs, seagrass meadows and mangroves. As bioturbators, they have an important ecological role in making available calcium carbonate and nutrients to the rest of the community. However, due to their commercial value, they face overexploitation in the natural environment. On top of that, occurring ocean acidification could impact these organisms, considered sensitive as echinoderms are osmoconformers, high-magnesium calcite producers and have a low metabolism. As a first investigation of the impact of ocean acidification on sea cucumbers, we tested the impact of short-term (6 to 12 days) exposure to ocean acidification (seawater pH 7.7 and 7.4) on two sea cucumbers collected in SW Madagascar, Holothuria scabra, a high commercial value species living in the seagrass meadows, and H. parva, inhabiting the mangroves. The former lives in a habitat with moderate fluctuations of seawater chemistry (driven by day-night differences) while the second lives in a highly variable intertidal environment. In both species, pH of the coelomic fluid was significantly negatively affected by reduced seawater pH, with a pronounced extracellular acidosis in individuals maintained at pH 7.7 and 7.4. This acidosis was due to an increased dissolved inorganic carbon content and pCO2 of the coelomic fluid, indicating a limited diffusion of the CO2 towards the external medium. However, respiration and ammonium excretion rates were not affected. No evidence of accumulation of bicarbonate was observed to buffer the coelomic fluid pH. If this acidosis stays uncompensated for when facing long-term exposure, other processes could be affected in both species, eventually leading to impacts on their ecological role.

  13. KERAGAAN REMATURASI GONAD INDUK TERIPANG PASIR, Holothuria scabra DENGAN PEMBERIAN JENIS PAKAN BERBEDA

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    Sari Budi Moria Sembiring

    2017-10-01

    Full Text Available Rematurasi gonad induk teripang pasir Holothuria scabra yang sudah memijah masih banyak masalah, padahal rematurasi diperlukan untuk keberlanjutan pemijahan dan penyediaan benih. Tujuan penelitian adalah memperoleh jenis pakan yang dapat mempercepat proses rematurasi gonad terhadap induk alam yang sudah dipijahkan sehingga dapat memenuhi kebutuhan untuk pembenihan teripang di hatcheri, serta mengetahui performa benih yang dihasilkan secara fenotipe dan genotipe. Penelitian rematurasi gonad dengan pemberian pakan berbeda telah dilakukan di Balai Besar Penelitian dan Pengembangan Budidaya Laut, Gondol. Penelitian dilakukan dengan metode eksperimental secara rancangan acak lengkap dengan perlakuan perbedaan jenis pakan, yaitu: A Ulva sp. dan bentos; B Gracilaria sp. dan bentos, dan C bentos saja. Dosis pemberian pakan sebanyak 4% dari bobot badan dengan frekuensi pemberian 1 kali/hari. Setiap perlakuan terdiri atas tiga ulangan. Jumlah induk setiap ulangan sebanyak tiga ekor dengan ukuran panjang dan bobot 13,08 ± 2,04 cm dan 182,75 ± 47,74 g. Benih yang dihasilkan sebelum induk dirematurasi dan setelah rematurasi diamati performa fenotipe dan genotipenya. Analisis genotipe menggunakan metode mikrosatellit dengan empat lokus (Hsc-11; Hsc-28; Hsc-49; dan Hsc-59. Parameter yang diamati meliputi frekuensi pemijahan induk teripang, tingkat kematangan gonad, indeks gonadosomatik, fekunditas, diameter telur, pertumbuhan benih F-1 sebelum dan sesudah rematurasi, serta performa genotipe benih tersebut. Data indeks gonad somatik dan diameter telur dianalisis dengan ANOVA, sedangkan data pertumbuhan, pemijahan, dan fekunditas disajikan dalam bentuk tabel dan grafik. Hasil penelitian menunjukkan bahwa semua perlakuan dapat mempercepat rematurasi gonad dan induk teripang memijah setelah dua bulan pemeliharaan. Jenis pakan bentos menghasilkan indeks gonadosomatik dan diameter telur lebih baik dibandingkan dengan perlakuan pakan lainnya (P0,05. Successful rate

  14. Evidence for a Saponin Biosynthesis Pathway in the Body Wall of the Commercially Significant Sea Cucumber Holothuria scabra.

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    Mitu, Shahida Akter; Bose, Utpal; Suwansa-Ard, Saowaros; Turner, Luke H; Zhao, Min; Elizur, Abigail; Ogbourne, Steven M; Shaw, Paul Nicholas; Cummins, Scott F

    2017-11-07

    The sea cucumber (phylum Echinodermata) body wall is the first line of defense and is well known for its production of secondary metabolites; including vitamins and triterpenoid glycoside saponins that have important ecological functions and potential benefits to human health. The genes involved in the various biosynthetic pathways are unknown. To gain insight into these pathways in an echinoderm, we performed a comparative transcriptome analysis and functional annotation of the body wall and the radial nerve of the sea cucumber Holothuria scabra ; to define genes associated with body wall metabolic functioning and secondary metabolite biosynthesis. We show that genes related to signal transduction mechanisms were more highly represented in the H. scabra body wall, including genes encoding enzymes involved in energy production. Eight of the core triterpenoid biosynthesis enzymes were found, however, the identity of the saponin specific biosynthetic pathway enzymes remains unknown. We confirm the body wall release of at least three different triterpenoid saponins using solid phase extraction followed by ultra-high-pressure liquid chromatography-quadrupole time of flight-mass spectrometry. The resource we have established will help to guide future research to explore secondary metabolite biosynthesis in the sea cucumber.

  15. Evidence for a Saponin Biosynthesis Pathway in the Body Wall of the Commercially Significant Sea Cucumber Holothuria scabra

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    Shahida Akter Mitu

    2017-11-01

    Full Text Available The sea cucumber (phylum Echinodermata body wall is the first line of defense and is well known for its production of secondary metabolites; including vitamins and triterpenoid glycoside saponins that have important ecological functions and potential benefits to human health. The genes involved in the various biosynthetic pathways are unknown. To gain insight into these pathways in an echinoderm, we performed a comparative transcriptome analysis and functional annotation of the body wall and the radial nerve of the sea cucumber Holothuria scabra; to define genes associated with body wall metabolic functioning and secondary metabolite biosynthesis. We show that genes related to signal transduction mechanisms were more highly represented in the H. scabra body wall, including genes encoding enzymes involved in energy production. Eight of the core triterpenoid biosynthesis enzymes were found, however, the identity of the saponin specific biosynthetic pathway enzymes remains unknown. We confirm the body wall release of at least three different triterpenoid saponins using solid phase extraction followed by ultra-high-pressure liquid chromatography-quadrupole time of flight-mass spectrometry. The resource we have established will help to guide future research to explore secondary metabolite biosynthesis in the sea cucumber.

  16. Successful large-scale hatchery culture of sandfish (Holothuria scabra using micro-algae concentrates as a larval food source

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    Thane A. Militz

    2018-02-01

    Full Text Available This paper reports methodology for large-scale hatchery culture of sandfish, Holothuria scabra, in the absence of live, cultured micro-algae. We demonstrate how commercially-available micro-algae concentrates can be incorporated into hatchery protocols as the sole larval food source to completely replace live, cultured micro-algae. Micro-algae concentrates supported comparable hatchery production of sandfish to that of live, cultured micro-algae traditionally used in large-scale hatchery culture. The hatchery protocol presented allowed a single technician to achieve production of more than 18,800 juvenile sandfish at 40 days post-fertilisation in a low-resource hatchery in Papua New Guinea. Growth of auricularia larvae fed micro-algae concentrates was represented by the equation length (μm = 307.8 × ln(day + 209.2 (R2 = 0.93 while survival over the entire 40 day hatchery cycle was described by the equation survival = 2 × day−1.06 (R2 = 0.74. These results show that micro-algae concentrates have great potential for simplifying hatchery culture of sea cucumbers by reducing infrastructural and technical resources required for live micro-algae culture. The hatchery methodology described in this study is likely to have applicability to low-resource hatcheries throughout the Indo-Pacific and could support regional expansion of sandfish hatchery production.

  17. Optimising methods for community-based sea cucumber ranching: Experimental releases of cultured juvenile Holothuria scabra into seagrass meadows in Papua New Guinea

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    Cathy Hair

    2016-05-01

    Full Text Available Hatchery-cultured juveniles of the commercial holothurian, sandfish (Holothuria scabra, were used for release experiments in a variety of marine habitats under traditional marine tenure near Kavieng, Papua New Guinea (PNG. Juveniles of approximately 4 g mean weight were released inside 100 m2 sea pens installed within seagrass meadows nearby partner communities, under the care of local ‘wardens’. Within each sea pen, varying levels of protection (free release, 1-day cage and 7-day cage were provided at release in order to determine if short-term predator exclusion improved survival. Ossicles of juvenile sandfish were tagged with different fluorochromes for each treatment and sandfish survival and growth was recorded after release. A range of biophysical parameters were recorded at the four sites. Contrary to expectations, short-term cage protection did not lead to higher survival at three sites, while a fourth site, despite meeting all considered criteria for suitable release habitat, experienced total loss of juveniles. There were significant differences in mean weight of juveniles between sites after four months. Multivariate analysis of biophysical factors clearly separated the sea pen habitats, strongly differentiating the best-performing site from the others. However, further research is needed to elucidate which biophysical or human factors are most useful in predicting the quality of potential sea ranch sites. Methods developed or refined through these trials could be used to establish pilot test plots at potential ranching sites to assess site suitability and provide guidance on the level of animal husbandry required before commencing community sea ranching operations in New Ireland Province, PNG. Keywords: Holothuria scabra, Mariculture, Sea pens, Predator exclusion, Principal components analysis, Biophysical variables

  18. PERFORMA BENIH TERIPANG PASIR, Holothuria scabra DARI SUMBER INDUK YANG BERBEDA

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    Sari Budi Moria Sembiring

    2016-12-01

    Full Text Available Upaya pengembangan perbenihan teripang pasir bagi kelestarian populasi di alam dan pengembangan budidaya patut dilakukan. Upaya ini diperlukan mengingat semakin intensifnya penangkapan teripang di alam yang dapat menimbulkan terganggunya kelestarian populasi ini. Tujuan dari penelitian ini adalah untuk mengevaluasi performa pertumbuhan benih teripang pasir, mendapatkan informasi keragaman genetik dan mengestimasi laju inbreeding dari 3 sumber induk teripang yang berbeda. Tiga sumber induk berasal dari perairan Bali, Sulawesi Selatan, dan Maluku Tenggara masing-masing sebanyak 20 ekor dianalisis menggunakan mikrosatelit (SSR/Simple Sequence Repeats dengan 3 lokus, yaitu Hsc-28; Hsc-49 dan Hsc-59. Proses pembenihan mengikuti pedoman teknis yang sudah ada dengan beberapa modifikasi. Hasil yang diperoleh menunjukkan bahwa panjang dan bobot benih umur 6 bulan yang dihasilkan dari induk Maluku Tenggara relatif lebih tinggi (5,67 ± 0,76 cm; 13,26 ± 5,63 g dibandingkan dengan benih dari induk Sulawesi Selatan (4,75 ± 0,91 cm; 6,3 ± 2,22 g dan Bali (4,85 ± 0,64 cm; 6,2 ± 3,6 g. Hasil analisis mikrosatelit menunjukkan bahwa keragaman genetik induk teripang pasir dari ke tiga populasi tidak berbeda nyata. Hal ini berdasarkan nilai differensiasi genetik (FST= 0,2475 atau 24,75%. Laju nilai inbreeding dalam populasi induk teripang pasir cukup tinggi (FIT= 0,4237 atau 42,37% dibandingkan dengan laju inbreeding antar populasi (FIS adalah 0,2342 atau 23,42%. The effort of sea cucumber seed production for culture development have to be carried out. This effort is also required due to the intensive exploration of sea cucumber in the nature which could threaten of its sustainability. The aims of this research is to evaluate sea cucumber juveniles growth performance, to obtain the information on genetic variation, and to estimate the rate of inbreeding from three different sea cucumber broodstock sources. Three sources of sea cucumber were collected from Bali

  19. PEMBERIAN TOTAL FENOL TERIPANG PASIR (Holothuria scabra UNTUK MENINGKATKAN LEUKOSIT DAN DIFERENSIAL LEUKOSIT IKAN MAS (Cyprinus carpio YANG DIINFEKSI BAKTERI Aeromonas Hydrophila

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    Achmad Suhermanto

    2011-10-01

    Full Text Available Freshwater fishery commodities are most likely to be increased production of carp (Cyprinus carpio. Intensification of cultivation which raises new problems with fish disease outbreaks caused by Aeromonas hydrophila. Providing of immunostimulatory bioactive compounds of sea cucumbers (Holothuria scabra can enhance non-specific immune responses in the goldfish as a mechanism of defense against disease. The purpose of this study is to determine the role and optimal dose of total phenols sea cucumber in enhancing non-specific immune response seen from the hematology parameters Extraction of bioactive components from sea cucumber prepared by using methanol and fractionated with ethyl acetate solvent (v/v. Identification of total phenols in ethyl acetate fraction performed using UV-Vis spectrophotometer and infrared. Total phenol produced was tested on carp with intraperitonial injection, the concentration of 0.09, 0.18 and 0.27 mg phenol/kg fish. Challenge test was done by using the Aeromonas hydrophila (107 cells/ml through the immersion method. The observations included hematological parameters and total plasma proteins.The observations of hematological parameters that Leukocytes, Neutrophils pre-and post-infection were significantly increased. Lymphocyte pre infection was increased significantly and post-bacterial infection was decreased significantly. Eosinophils, Monocytes pre-and post-bacterial infection were not differ significantly between treatment. The use of phenolic compounds at 0.09 mg / kg can be increase of non-specific immune response in carp (Cyprinus carpio. Key Words : Total phenol, Aeromonas hydrophila, Cyprinus carpio, nonspecific immune response 

  20. anti-bacterial activity of guizotia scabra l. and maesa lanceolata l ...

    African Journals Online (AJOL)

    Francis

    ... human body. Medicinal plants roots, barks, leaves and flowers were collected from the Institute of ... scabra L. and Maesa lanceolata L. with a good reputation in traditional healing of human diseases. .... The similarities of leaves for the two ...

  1. Heavy metal accumulation in Littoraria scabra along polluted and pristine mangrove areas of Tanzania

    Energy Technology Data Exchange (ETDEWEB)

    Wolf, H. de [Ecophysiology, Biochemistry and Toxicology Group, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp (Belgium)], E-mail: hans.dewolf@ua.ac.be; Rashid, R. [Ecophysiology, Biochemistry and Toxicology Group, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp (Belgium)

    2008-04-15

    The periwinkle Littoraria scabra was collected at polluted and pristine mangrove sites along the Tanzanian coastline, including Msimbazi, Mbweni (i.e. Dar es Salaam) and Kisakasaka, Nyamanzi and Maruhubi (i.e. Zanzibar). Periwinkles were morphologically characterized, sexed and their heavy metal content was determined using ICP-MS. Analysis revealed that L. scabra from polluted areas contained higher soft tissue heavy metal levels, were significantly smaller and weighed less compared to their conspecifics from the unpolluted mangroves. The current morphological observations may be explained in terms of growth and/or mortality rate differences between the polluted and non-polluted sites. Although a variety of stressors may account for these adverse morphological patterns, our data suggest a close relationship with the soft tissue heavy metal content. Compared to soft tissue heavy metal levels that were measured in L. scabra along the same area in 1998, most metals, except for arsenic, chromium and iron have decreased dramatically. - Anthropogenic activities result in heavy metal accumulation and adverse morphological effects in the mangrove gastropod Littoraria scabra.

  2. Heavy metal accumulation in Littoraria scabra along polluted and pristine mangrove areas of Tanzania

    International Nuclear Information System (INIS)

    Wolf, H. de; Rashid, R.

    2008-01-01

    The periwinkle Littoraria scabra was collected at polluted and pristine mangrove sites along the Tanzanian coastline, including Msimbazi, Mbweni (i.e. Dar es Salaam) and Kisakasaka, Nyamanzi and Maruhubi (i.e. Zanzibar). Periwinkles were morphologically characterized, sexed and their heavy metal content was determined using ICP-MS. Analysis revealed that L. scabra from polluted areas contained higher soft tissue heavy metal levels, were significantly smaller and weighed less compared to their conspecifics from the unpolluted mangroves. The current morphological observations may be explained in terms of growth and/or mortality rate differences between the polluted and non-polluted sites. Although a variety of stressors may account for these adverse morphological patterns, our data suggest a close relationship with the soft tissue heavy metal content. Compared to soft tissue heavy metal levels that were measured in L. scabra along the same area in 1998, most metals, except for arsenic, chromium and iron have decreased dramatically. - Anthropogenic activities result in heavy metal accumulation and adverse morphological effects in the mangrove gastropod Littoraria scabra

  3. FORMULASI DAN APLIKASI PAKAN BUATAN BERBASIS RUMPUT LAUT UNTUK PENDEDERAN BENIH TERIPANG PASIR (Holothuria scabra

    Directory of Open Access Journals (Sweden)

    I Nyoman Adiasmara Giri

    2018-01-01

    Full Text Available Teripang merupakan salah satu komoditas perikanan penting dan mempunyai nilai ekonomi yang tinggi di Asia. Teknologi pembenihan teripang sudah mulai dikembangkan dan telah mampu memproduksi benih secara massal untuk budidaya. Pakan merupakan salah satu faktor yang sangat menentukan keberhasilan budidaya teripang. Penelitian ini bertujuan untuk mengevaluasi beberapa formula pakan berbasis rumput laut untuk pendederan teripang pasir. Empat pakan percobaan diformulasi menggunakan kombinasi beberapa jenis bahan baku, khususnya rumput laut. Pakan dibuat dalam bentuk pelet dengan kandungan protein 14% dan lemak 4,5%. Kontrol adalah pakan berupa bentos segar. Benih teripang pasir yang digunakan berukuran bobot 2,0 ± 0,6 g dengan panjang 2,8 ± 0,5 cm. Benih teripang dipelihara dalam bak persegi berkapasitas 150 L dengan kepadatan 50 ekor per bak. Benih teripang diberi pakan percobaan sekali dalam sehari pada sore hari. Percobaan dirancang dengan Rancangan Acak Lengkap terdiri atas lima perlakuan pakan dan empat ulangan. Percobaan berlangsung selama 120 hari. Hasil percobaan menunjukkan bahwa benih teripang pasir yang diberi pakan buatan menghasilkan pertumbuhan (pertambahan bobot 341,3%-386,8% dan sintasan (92,5%-97,5% lebih tinggi dan berbeda nyata (P0,05. Kandungan protein teripang yang diberi pakan buatan (22,3%-24,4% lebih tinggi (P0.05. Protein content of sea cucumber fed the artificial feeds was significantly higher (22.3%-24.4% (P<0.05 than that of the control (18.4%. Results of this study indicated that juveniles of sea cucumber could utilize artificial feed properly and Sargassum sp. based diet could be applied for nursery of sea cucumber juveniles.

  4. Pengaruh Tepung Teripang Pasir (Holothuria Scabra Terhadap Perilaku Seksual dan Kadar Testosteron Darah Mencit (Mus musculus

    Directory of Open Access Journals (Sweden)

    Sarifah Nurjanah

    2009-09-01

    Full Text Available Sea cucumber is generally believed as a natural material that can be used as a tonic food to increase man vitality. The aim of this study was to investigate the effect of sandfish powder on sexual behavior and blood testosterone level of male mice. Method applied in the study was laboratory experimental method. Mature male mice were treated with administration of sandfish powder with three dosage rate of steroid content (10, 30 and 50 ìg/100 g body weight during 12 days, whereas for control treatment were without hormone administration and with the metil testosterone administration. Parameters that were investigated were kissing vagina and mounting for sexual behavior and the blood testosterone level of male mice. It was found that administration of sandfish powder significantly give effect on the number of kissing vagina and mounting compared to control. Administration of 10 ìg/100 g body weight on male mice showed the highest sexual behavior with 25 kissing vagina for and 6 mounting for 30 minutes. Moreover, administration of sandfish powder increased the testosterone level in the male mice blood. This may due to the steroid contained in sandfish powder and nutrition value that increase mice libido. The study proved that the sandfish powder has a potential as a nature aphrodisiac.

  5. Development of novel microsatellite markers for Holothurian scabra (Holothuriidae), Apostichopus japonicas (Stichopodidae) and cross-species testing in other sea cucumbers

    Science.gov (United States)

    Shangguan, Jingbo; Li, Zhongbao

    2018-03-01

    Thirty-five new microsatellite loci from the sea cucumbers Holothurian scabra (Jaeger, 1833) and Apostichopus japonicas (Selenka, 1867) were screened and characterized using the method of magnetic bead enrichment. Of the twenty-four polymorphic loci tested, eighteen were consistent with Hardy-Weinberg equilibrium after a modified false discovery rate (B-Y FDR) correction, whereas six showed statistically significant deviations (CHS2 and CHS11: Psea cucumbers ( Holothurian scabra, Holothuria leucospilota, Stichopus horrens and Apostichopus japonicas) were tested for mutual cross-amplification using a total of ninety microsatellite loci. Although transferability and universality of all loci were generally low, the results of the cross-species study showed that the markers can be applied to identify individuals to species according to the presence or absence of specific microsatellite alleles. The microsatellite markers reported here will contribute to the study of genetic diversity, assisted breeding, and population conservation in sea cucumbers, as well as allow for the identification of individuals to closely related species.

  6. Seasonal changes in biochemical composition of Holothuria leucospilota (Echinodermata)

    Digital Repository Service at National Institute of Oceanography (India)

    Jayasree, V.; Parulekar, A.H.; Wahidullah, S.; Kamat, S.Y.

    Biochemical composition of body wall and gonads of Holothuria leucospilota was analysed for protein, carbohydrate, lipid, ash, dry weight and calorific values and was discussed in relation to its spawning activities. Lipids constituted the major...

  7. Effects of seven diets on the population dynamics of laboratory cultured Tisbe holothuriae Humes (Copepoda, Harpacticoida)

    Science.gov (United States)

    Miliou, H.; Moraïtou-Apostolopoulou, M.

    1991-09-01

    The harpacticoid copepod Tisbe holothuriae was collected from Saronicos Gulf (Greece) and reared under constant laboratory conditions. In order to study the effects of food on the population dynamics, seven diets were tested: the seaweed Ulva; five artificial compound feeds: the liquid Fryfood® (Waterlife), a powder of Mytilus, yeast, soya and Spirulina, respectively; and a mixed diet consisting of Ulva and Fryfood. The life cycle parameters (mortality, sex ratio, generation time, offspring production) were measured, and the demographic variables [mean generation time (T), net reproductive rate (Ro), and intrinsic rate of natural increase (rm)] were determined. As to their efficiency regarding population dynamics, the diets ranked as follows: (1) Ulva+Fryfood, (2), Ulva, (3) Fryfood, (4) Mytilus, (5) soya, (6) yeast, and (7) Spirulina. In this order they cause a progressive increase of both larval mortality and generation time, a progressive decrease of sex ratio, number of offspring per egg sac, number of egg sacs per female and, consequently, of Ro and rm. The observed differences between diets were most pronounced with respect to offspring production. Of the compound diets, those containing animal extracts were more efficient than those containing vegetable materials. Ulva plays an important role in the nutrition of T. holothuriae, favouring offspring production as well as larval survival, development and pigmentation. Ulva in combination with Fryfood led to a greater copepodid survival and offspring production. This mixed diet proved to be the most favourable for rearing the Greek population of t. holothuriae, resulting in an efficient intrinsic rate of natural increase (rm=0.304) of the population.

  8. Reproductive aspects of the caridean shrimp Atya scabra (Leach, 1815 (Decapoda: Atyidae in São Sebastião Island, southwestern Atlantic, Brazil

    Directory of Open Access Journals (Sweden)

    Juliana Herrera-Correal

    2013-09-01

    Full Text Available The caridean freshwater shrimp Atya scabra is a common resident of stream systems of tropical rainforests in America, including Brazilian drainages. This shrimp has an amphidromous life cycle, which increases its vulnerability when facing habitat fragmentation. Since information on the reproduction of this species is still limited, we present here data on egg production, egg loss, and energy investment, to achieve a better understanding of reproductive features of A. scabra. Specimens were collected between 2006 and 2007 in São Sebastião Island, southeastern Brazil, in 13 locations. The fecundity of 21 ovigerous females analyzed ranged between 414 and 19,250 eggs, which were higher than previously reported. However, the larger size of females analyzed may explain the observed intraspecific difference in egg production. During embryogenesis, egg volume and water content increased by 103 and 22.6%, respectively. The initial egg volume of A. scabra in the present study (0.027 mm³ was slightly lower, but comparable to the values reported previously from the same study area. During incubation, females of A. scabra lost 15% of their initially produced eggs. The reproductive output (average RO of 3.6% is the first report for any atyid species. Its value is fairly low compared to other freshwater shrimps, and it is hypothesized that this might be related to a high energy investment in morphological adaptations, which allows the shrimp to cling on to the substrate in the fast flowing environment they inhabit. Additionally, the long life span, a well-known phenomenon in atyid shrimp, may allow the species to invest a relatively low amount of energy per brood in egg production, but over a longer time span.

  9. Sex Determination in Sea Cucumbers: Holothuria forskali and Stichopus regalis

    Directory of Open Access Journals (Sweden)

    Filipa Pinheiro Santos

    2014-06-01

    Full Text Available Sea cucumber aquaculture is underexploited in temperate regions, and it is inexistent in Portugal. However, there are some species with a large potential for this sector, namely Stichopus regalis and Holothuria forskali, as it their nutritional value. S. regalis is a common sea cucumber that is found in a wide depth range and is currently consumed all over the world, majority in Asia, with a high commercial value. On the other hand, H. forskali is the most plentiful specie of the Portuguese coast. The purpose of this study is to evaluate sex ratio on both species through biopsy method, using biopsy needle to collect a piece of gonad. Holothurian specimens were sampled coastwise in Peniche, Portugal (39° 21′ 32″ N, 9° 22′ 40″ W. A total of 45 H. forskali were collected in the low tide and 48 S. regalis were caught by trawl method. Both species were kept in captivity during 8 months, the rearing conditions are maintained close as possible to the natural habitat, and they were placed in a sand bottom. Mortality was evaluated during conditioning period, and it was verified approximately 19% of mortality in S. regalis, although in H. forskali it was not observed. Sex identification was performed with success only in H. forskali, and sexual ratio found was 1:1. All S. regalis specimens arrived eviscerated to the Aquaculture Laboratory and it was caused by the trawl capture method. For that reason, it was not possible to assess the sexual ratio. The possibility to distinguish holothurian genre is essential to realize sexual behavior, and to ease the understanding of reproductive cycle in attempt to introduce these new species for aquaculture rearing.

  10. A new distributional record for the sea cucumber Holothuria (Semperothuria) cinerascens (Brandt) from Goa coast

    Digital Repository Service at National Institute of Oceanography (India)

    Shirwaikar, P.; Parulekar, A.H.

    Occurrence of sea cucumber, Holothuria (Semperothuria) cinerascens from intertidal region of Anjuna (Goa) along central west coast of India is reported. Notes on morphological characteristics are given...

  11. Purification and characterization of a T-antigen specific lectin from the coelomic fluid of a marine invertebrate, sea cucumber (Holothuria scabra)

    Digital Repository Service at National Institute of Oceanography (India)

    Gowda, N.M.; Goswami, U.; Khan, M.I.

    including marine invertebrates. In marine invertebrates, lectins have been suggested to participate in innate immune response by inducing bacterial agglutination or by acting as opsonins to enhance phagocytosis by coelomycetes [2-5]. Besides role in cell... recognition and host defense, lectins have long been used as probes to determine sugar composition of glycan and glycoconjugates like bacterial lipopolysaccharide, cell surface glycoproteins and glycolipids [6]. Therefore, it is essential to understand...

  12. Cytoprotective Effects of Lysophospholipids from Sea Cucumber Holothuria atra.

    Directory of Open Access Journals (Sweden)

    Yoshifumi Nishikawa

    Full Text Available Lysophospholipids are important signaling molecules in animals and metazoan cells. They are widely distributed among marine invertebrates, where their physiological roles are unknown. Sea cucumbers produce unique lysophospholipids. In this study, two lysophospholipids were detected in Holothuria atra for the first time, lyso-platelet activating factor and lysophosphatidylcholine, with nuclear magnetic resonance and liquid chromatography-time-of-flight mass spectrometric analyses. The lipid fraction of H. atra contained lyso-platelet activating factor and lysophosphatidylcholine, and inhibited H2O2-induced apoptosis in the macrophage cell line J774A.1. The antioxidant activity of the lysophospholipid-containing lipid fraction of H. atra was confirmed with the oxygen radical absorbance capacity method. Our results suggest that the lysophospholipids from H. atra are potential therapeutic agents for the inflammation induced by oxidative stress.

  13. Extraction optimization, characterization and antioxidant activity of polysaccharide from Gentiana scabra bge.

    Science.gov (United States)

    Cheng, Zhenyu; Zhang, Yuewei; Song, Haiyan; Zhou, Hongli; Zhong, Fangli; Hu, Haobin; Feng, Yu

    2016-12-01

    In this study, optimization of smashing tissue extraction (STE), preliminary chemical characterization and antioxidant activity in vitro of crude polysaccharides (CPS) from Gentiana scabra bge (G. scabra) were investigated. The optimal extraction conditions were determined as follows: sample particle size of 80mesh, solid/liquid ratio of 1:34, extraction voltage of 157.09V and extraction time of 130.38s. Under these conditions, the extraction yield of CPS had reached 15.03±0.14% (n=3). Chemical composition analysis indicated CPS was mainly composed of mannose, rhamnose, galacturonic acid, glcose, galactose, arabinose and fucose in a molar ratio of 1.00:9.89:51.59:35.37:38.06:99.13:21.34, respectively. The average molecular weight of CPS was estimated to be 3.8×10 4 Da. In addition, the potential antioxidant activity of CPS extracted by STE were demonstrated by DPPH radical scavenging assay, superoxide anion radical scavenging assay, hydroxyl radical scavenging assay and ferric reducing power assay. Overall, this study provided an effective extraction technique for G. scabra polysaccharides which would be explored as a promising natural antioxidant agent applied in functional foods or medicines. Copyright © 2016 Elsevier B.V. All rights reserved.

  14. Anti-diabetic activity of Holothuria thomasi saponin.

    Science.gov (United States)

    El Barky, Amira R; Hussein, Samy A; Alm-Eldeen, Abeer A; Hafez, Yehia A; Mohamed, Tarek M

    2016-12-01

    Diabetes mellitus represents a global health problem. It characterized by hyperglycemia that induces oxidative stress leading to a generation of free radicals. A wide variety of natural products in plants and other marine animals represent antioxidant activity and other health benefits like those of sea cucumber. Therefore, this study aimed to investigate the antidiabetic activity of glycosidic compound - saponin - derived from the Egyptian sea cucumber, Holothuria thomasi. Saponin has been extracted from the Egyptian sea cucumber and confirmed by hemolysis, Salkowski tests, FT/IR, UV and GC-MS analysis. Eighty white female albino rats were divided into four equal groups. The first two groups of rats; control normal and control normal saponin-treated groups. The last two groups which were made diabetic by intraperitoneal injection of streptozotocin had one diabetic control and the other diabetic group that got 300mg/kg B.wt. of saponin extract after Thirty-five days after diabetes induction and lasted for six weeks. The functional group of saponin extract which established with FT/IR spectroscopy demonstrated the presence of saponin in the extracted materials as shown in the peak of the functional group in relevance to the standard one. The UV spectra revealed that λ max of saponin extract was 282nm which in accordance to the standard saponin. Also, GC-MS analysis indicated that the aglycone part of saponin was methyl esters of octadecanoic acid. Saponin extract significantly decreased serum glucose, α-amylase activity, adiponectin, IL-6, TNF-α concentrations and liver L-MDA. However, serum insulin and liver glycogen levels were significantly increased as compared with the diabetic non-treated groups. The histopathological results supported that saponin extract markedly reduced the degenerative change in β-cells. This study, therefore, depicts that the Egyptian Holothuria thomasi, sea cucumber saponin as a hypoglycemic agent with the potential to normalize

  15. The importance of dietary HUFAs for fecundity and HUFA content in the harpacticoid, Tisbe holothuriae Humes

    DEFF Research Database (Denmark)

    Norsker, Niels-Henrik; Støttrup, Josianne

    1994-01-01

    of T. holothuriae on the 3 diets was studied. Of the two microalgal diets studied, the one with the high n−3 HUFA content resulted in considerably higher sustained naupliar productivity during the first 15 days of the production period of the cultures. However, no difference in brood size (first two...

  16. First report of powdery mildew on cucumis zambianus, cucurbita digitata and zehneria scabraCaused by podosphaera xanthii

    Science.gov (United States)

    Powdery mildew is a serious disease of cucurbit crops worldwide. In the fall of 2016, symptoms of powdery mildew were observed on 2-month old plants of Cucumis zambianus, Cucurbita digitata and Zehneria scabra in research plots in Charleston, SC. Incidence on 28 plants of C. zambianus was 64.3%. On ...

  17. In vitro propagation of Gentiana scabra Bunge - an important medicinal plant in the Chinese system of medicines.

    Science.gov (United States)

    Huang, Shih-Hung; Agrawal, Dinesh Chandra; Wu, Fang-Sheng; Tsay, Hsin-Sheng

    2014-12-01

    Gentiana scabra Bunge commonly known as 'Long dan cao' in China has been used in traditional Chinese medicines for more than 2000 years. Dry roots and rhizome of the herb have been used for the treatment of inflammation, anorexia, indigestion and gastric infections. Iridoids and secoiridoids are the main bioactive compounds which attribute to the pharmacological properties of this plant. The species is difficult to mass propagate by seed due to the low percentage of germination and limited dormancy period. Wild populations in some locations are considered to be in the endangered category due to over exploitation. In the present study, we report an efficient micropropagation system. Shoot apices of six weeks old in vitro grown G. scabra plants were used as explants for the in vitro propagation. Induction of multiple shoots (9.1/explant) was achieved on the culture of shoot apices on half strength Murashige and Skoog's basal medium (MSBM) containing 2.0 mg/L -1 6-benzylaminopurine (BA), 3% sucrose and 0.9% Difco agar. In vitro shoots induced profuse rooting on half strength of MSBM supplemented with 0.1 mg/L -1 1-naphthaleneacetic acid (NAA), 3% sucrose and 0.3% gelrite. A two-stage ventilation closure procedure during the in vitro culture, and transparent sachet technique enhanced the survival rate of G. scabra plantlets to 96% in the greenhouse. Tissue culture plants flowered after 5 months of transfer to pots. A simple and an efficient in vitro propagation protocol of Gentiana scabra Bunge by optimizing the medium composition and ventilation closure treatments has been developed. The protocol can be very useful in germplasm conservation and commercial cultivation of G. scabra plants.

  18. Anticancer potency of black sea cucumber (Holothuria atra) from Mentawai Islands, Indonesia

    OpenAIRE

    Mieke Hemiawati Satari; Utmi Arma; Syafruddin Ilyas; Dian Handayani

    2017-01-01

    ABSTRACT Introduction: The source of bioactive compounds believed to have strong anticancer potency is derived from sea cucumber. Black sea cucumber (Holothuria atra) is a dominant species in Mentawai Islands, West Sumatera, Indonesia. Key factor compound that acts as anticancer in sea cucumber extract is tritepenoid also known as Frondoside A. The purpose of this study was to determine the effectiveness of the active compound taken from black sea cucumber as anticancer. Methods: Methods u...

  19. Interactions between populations of the calanoid copepod Acartia tonsa Dana and the harpacticoid copepod Tisbe holothuriae Humes in mixed cultures of live feed for fish larvae

    DEFF Research Database (Denmark)

    Hansen, Benni Winding; Boesen, Emil; Brodnicke, Ole Bjørn

    2018-01-01

    by the R setup compared with S setup. A long-term solution to limit the presence of T. holothuriae is to apply turbulence level in a classical stagnant tank setup to an extend that suppress T. holothuriae and simultaneously allow algae in suspension as food for A. tonsa, make their eggs sediment as well...

  20. CITOGENETICA DE HIBRIDOS ENTRE TURNERA GRANDIDENTATA (4x Y T. SUBULATA Y T. SCABRA (2x (TURNERACEAE

    Directory of Open Access Journals (Sweden)

    Aveliano Fernández

    1993-01-01

    Full Text Available Turnera subulata y T.scabra, 2n = 2x = 10, se cruzaron con T.grandidentata, 2n = 4x = 20, y los híbridos obtenidos se estudiaron citológicamente para determinar la relación entre estas especies. Todos los híbridos presentaron 2n = 3x = 15 y meiosis irregular. En T.subulata x T.grandidentata se hallo una asociación cromosómica media de 4,28 univalentes, 4,16 bivalentes y 0,73 trivalentes. T.scabra x T.grandidentata tuvieron una asociación cromosómica media de 4,53 univalentes, 4,42 bivalentes, 0,53 trivalentes y 0.03 cuadrivalents. El estudio citogenético de estos híbridos indica que estas tres especies tienen el mismo genoma básico. Las fórmulas genómicas Asu Asu para T.subulata, Asc Asc para T.scabra y AgAgArAr para T.grandidentata fueron propuestas en trabajos anteriores. Las asociaciones y las configuraciones que se encuentran en los híbridos analizados en éste estudio avalan las fórmulas genómicas propuestas.

  1. Changes in Sediment Fatty Acid Composition during Passage through the Gut of Deposit Feeding Holothurians: Holothuria atra (Jaeger, 1883 and Holothuria leucospilota (Brandt, 1835

    Directory of Open Access Journals (Sweden)

    Prosper L. Mfilinge

    2016-01-01

    Full Text Available Sea cucumbers Holothuria atra and Holothuria leucospilota play an important role in the bioturbation of sediment in coral reef and rocky intertidal ecosystems. This study investigated changes in sediment fatty acid (FA composition during gut passage in H. atra and H. leucospilota. The FA composition did not differ significantly between species. Comparison of FA composition in ambient sediment (AS, foregut (FG, midgut (MG, hindgut (HG, and faecal pellets (FPs indicated that marked changes in FA composition occurred during passage through the gut of H. atra and H. leucospilota. Saturated fatty acids (SAFAs, monounsaturated fatty acids (MUFAs, polyunsaturated fatty acids (PUFAs, and branched fatty acids (BrFAs were significantly higher in FG than in AS, suggesting that both species selectively ingested nutrient rich particles. Significant reduction of SAFAs, MUFAs, PUFAs, and BrFAs occurred in MD and HD, with complete elimination of most PUFAs in FPs. A decrease in PUFAs 20:5ω3, 18:4ω3, 22:5ω3, 22:6ω3, 18:2ω6, 18:3ω3, 18:3ω6, odd-numbered BrFAs, and MUFA 18:1ω7 indicated that algal detritus and bacteria were important part of diet. These results have implications for the fate of specific dietary FAs, especially ω3 and ω6, and the contribution holothurian FPs make to the FA composition of coral reef and rocky intertidal ecosystems.

  2. Changes in Sediment Fatty Acid Composition during Passage through the Gut of Deposit Feeding Holothurians: Holothuria atra (Jaeger, 1883) and Holothuria leucospilota (Brandt, 1835)

    Science.gov (United States)

    Tsuchiya, Makoto

    2016-01-01

    Sea cucumbers Holothuria atra and Holothuria leucospilota play an important role in the bioturbation of sediment in coral reef and rocky intertidal ecosystems. This study investigated changes in sediment fatty acid (FA) composition during gut passage in H. atra and H. leucospilota. The FA composition did not differ significantly between species. Comparison of FA composition in ambient sediment (AS), foregut (FG), midgut (MG), hindgut (HG), and faecal pellets (FPs) indicated that marked changes in FA composition occurred during passage through the gut of H. atra and H. leucospilota. Saturated fatty acids (SAFAs), monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids (PUFAs), and branched fatty acids (BrFAs) were significantly higher in FG than in AS, suggesting that both species selectively ingested nutrient rich particles. Significant reduction of SAFAs, MUFAs, PUFAs, and BrFAs occurred in MD and HD, with complete elimination of most PUFAs in FPs. A decrease in PUFAs 20:5ω3, 18:4ω3, 22:5ω3, 22:6ω3, 18:2ω6, 18:3ω3, 18:3ω6, odd-numbered BrFAs, and MUFA 18:1ω7 indicated that algal detritus and bacteria were important part of diet. These results have implications for the fate of specific dietary FAs, especially ω3 and ω6, and the contribution holothurian FPs make to the FA composition of coral reef and rocky intertidal ecosystems. PMID:27042355

  3. Antifungal effect of Sticophus hermanii and Holothuria atra extract and its cytotoxicity on gingiva-derived mesenchymal stem cell

    Directory of Open Access Journals (Sweden)

    Kristanti Parisihni

    2013-12-01

    Full Text Available Background: Sea cucumber had been acknowledged to have some medical properties Sticophus hermanii and Holothuria atra are species of sea cucumber which has been known to have antifungal properties thus potentially explored as therapeutic agent in oral candidiasis. Purpose: The aim of this study was to examine the antifungal property Sticophus hermanii and Holothuria atra extract against Candida albicans and its cytotoxicity to human gingiva-derived mesenchymal stem cell. Methods: The study was an experimental laboratories research with post test only control group design. Methanolic extract of Sticophus hermanii and Holothuria atra in concentrations of 1%, 0.5%; 0.25%; 0.13%, 0.07%; 0.03%, 0.02% and 0.01%; were tested its cytotoxicity on gingiva-derived mesenchymal stem cell. Cell viability were measured by MTT assay. The antifungal property against Candida albicans was tested by disk diffusion method. Data were analyzed by ANOVA followed by LSD. Results: Extract of Sticophus hermanii showed no cytotoxicity in all concentrations (p>0.05, while Holothuria atra showed toxicity in the concentration of 1% and not cytotoxic in the concentrations below (p<0.05. Both sea cucumber extract could inhibit the growth Candida albicans, in vitro, proved by the clear zone around the disc in all concentrations (p<0.05. Conclusion: Stichopus hermanii and Holothuria atra extract had the antifungal effect against Candida albicans. Sea cucumber extract were not cytotoxic togingiva-derived mesenchymal stem cell in the concentration of Sticophus hermanii ≤ 1% and Holothuria atra ≤ 0.5%.Latar belakang: Teripang telah diketahui mempunyai berbagai khasiat medis. Sticophus hermanii dan Holothuria atra adalah spesies teripang yang telah diketahui mempunyai sifat anti jamur sehingga santat potensial untuk diekplorasi sebagai agen terapeutik pada infeksi di rongga mulut. Tujuan: Tujuan dari penelitian ini adalah untuk meneliti sifat anti jamur ekstrak Sticophus hermanii

  4. Antioxidant and immunological activities of polysaccharides from Gentiana scabra Bunge roots.

    Science.gov (United States)

    Wang, Zhanyong; Wang, Chenyu; Su, Tingting; Zhang, Jing

    2014-11-04

    Two polysaccharide fractions, GSP I-a and GSP II-b, were isolated from Gentiana scabra Bunge roots. Both GSP I-a and GSP II-b comprised seven monosaccharides: fructose, mannose, rhamnose, galacturonic acid, glucose, galactose, and fucose. Ultraviolet and infrared analyses show that GSP I-a and GSP II-b are proteoglycans. In vitro evaluation of the antioxidant activity suggests that GSP I-a and GSP II-b scavenge 1,1-diphenyl-2-picrylhydrazyl radicals. However, the scavenging activity of the latter is stronger than that of the former. GSP I-a and GSP II-b have relatively low reducing powers and scavenging activities toward superoxide anions and hydroxyls. GSP I-a and GSP II-b significantly increase lymphocyte proliferation when lipopolysaccharide is used as a mitogen for lymphocytes, but only GSP I-a can significantly increase lymphocyte proliferation within the test-dosage range when concanavalin A is used as a mitogen. Copyright © 2014 Elsevier Ltd. All rights reserved.

  5. Cytotoxic effect of Alpinia scabra (Blume) Náves extracts on human breast and ovarian cancer cells.

    Science.gov (United States)

    Reddy, Annushuya Subba; Abd Malek, Sri Nurestri; Ibrahim, Halijah; Sim, Kae Shin

    2013-11-12

    Alpinia scabra, locally known as 'Lengkuas raya', is an aromatic, perennial and rhizomatous herb from the family Zingiberaceae. It is a wild species which grows largely on mountains at moderate elevations in Peninsular Malaysia, but it can also survive in the lowlands like in the states of Terengganu and Northern Johor. The present study reports the cytotoxic potential of A. scabra extracts from different parts of the plant. The experimental approach in the present study was based on a bioassay-guided fractionation. The crude methanol and fractionated extracts (hexane, chloroform and water) from different parts of A. scabra (leaves, rhizomes, roots and pseudo stems) were prepared prior to the cytotoxicity evaluation against human ovarian (SKOV-3) and hormone-dependent breast (MCF7) carcinoma cells. The identified cytotoxic extracts were then subjected to chemical investigations in order to identify the active ingredients. A normal human lung fibroblast cell line (MRC-5) was used to determine the specificity for cancerous cells. The cytotoxic extracts and fractions were also subjected to morphological assessment, DNA fragmentation analysis and DAPI nuclear staining. The leaf (hexane and chloroform) and rhizome (chloroform) extracts showed high inhibitory effect against the tested cells. Ten fractions (LC1-LC10) were yielded after purification of the leaf chloroform extract. Fraction LC4 which showed excellent cytotoxic activity was further purified and resulted in 17 sub-fractions (VLC1-VLC17). Sub-fraction VLC9 showed excellent cytotoxicity against MCF7 and SKOV-3 cells but not toxic against normal MRC-5 cells. Meanwhile, eighteen fractions (RC1-RC18) were obtained after purification of the rhizome chloroform extract, of which fraction RC5 showed cytotoxicity against SKOV-3 cells with high selectivity index. There were marked morphological changes when observed using phase-contrast inverted microscope, DAPI nuclear staining and also DNA fragmentations in MCF7 and

  6. Cytotoxic and anti-colorectal tumor effects of sulfated saponins from sea cucumber Holothuria moebii.

    Science.gov (United States)

    Yu, Siran; Ye, Xuewei; Chen, Lu; Xie, Xin; Zhou, Qian; Lian, Xiao-Yuan; Zhang, Zhizhen

    2015-11-15

    Whether sulfated saponins from Holothuria moebii inhibit the proliferation of colorectal cancer cells and have anti-colorectal tumor effects in animal model has not been investigated. To evaluate the cytotoxic and anti-colorectal tumor effects of sulfated saponins from sea cucumber Holothuria moebii. (1) Column chromatography was used to prepare the total and individual saponins and HPLC was applied to define the components of the total saponins; (2) the activity of the total and individual saponins inhibiting the proliferation of human colorectal cancer cells was determined by SRB assay and the apoptosis induced by the saponins was qualified using cytometric analysis with Annexin V-FITC/PI double staining; and (3) the antitumor effects of the sulfated saponins on colorectal CT-26 tumor-bearing Balb/c mice were tested. The total and individual sulfated saponins significantly inhibited the proliferation of four different human colorectal cancer cells with IC50 values ranging from 1.04 to 4.08 μM (or 1.46 to 3.24 μg/ml for total saponins) and induced late apoptosis at an early treatment time in cancer cells. The total saponins (120 mg/kg) had antitumor activity in colorectal CT-26 tumor-bearing Balb/c mice. The sulfated saponins from H. moebii remarkably inhibited the proliferation of different human colorectal cancer cells and had significant anti-colorectal tumor activity in animal model. Copyright © 2015 Elsevier GmbH. All rights reserved.

  7. EFFECT OF MICROALGAE ON GROWTH AND FATTY ACID PROFILES OF HARPACTICOID COPEPOD, Tisbe holothuriae

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    Gede Suwarthama Sumiarsa

    2009-12-01

    Full Text Available Growth of marine copepods is influenced by feed. The purposes of this trial were to observe both growth and fatty acid compositions of harpacticoid copepod nauplii, Tisbe holothuriae by feeding with several microalgal species in laboratory: (A Isochrysis tahiti; (B Nannochloropsis oculata; (C Rhodomonas sp., and (D Tetraselmis chuii. The trial was carried out for 35 days with randomized complete design and triplicates in each treatment. The results showed that final copepod nauplii densities were not significantly different (P>0.05 in all treatments. However, lipid content of copepod nauplii fed with T. chuii was significantly higher (P<0.05 compared to that of other treatments while fatty acid profiles of EPA, DHA and DHA/EPA ratios showed both insignificant and significant differences among treatments.

  8. Phylogeography of Holothuria (Halodeima inornata Semper, 1868 (Echinodermata: Holothuroidea

    Directory of Open Access Journals (Sweden)

    Elba Prieto-Rios

    2014-10-01

    Full Text Available Genetic structure of the populations of H. inornata was evaluated and the barriers for genetic flux and historic processes were investigated. Samples were collected trying to cover the distribution range of the species, from Mexico to northern Perú. Based on COI sequences, 118 haplotypes from 220 specimens were detected; the differences between such haplotypes were due to 97 variable sites (21.41% of the 453 bp sequenced. A high haplotype diversity (h=0.979 and a moderate nucleotidic diversity were observed. The values of Fst, the exact test of population differentiation, and the molecular variance analysis (AMOVA were used in order to analyze the genetic differentiation. These analyses suggest the existence of two populations: northern, off the coasts of Sinaloa, Jalisco, Michoacán, Guerrero, and Oaxaca, and southern, off the coasts of Chiapas, El Salvador, Panamá and Perú. Historic events and oceanographic patterns may be the main factors determining dispersion and structure of Hi populations. It seems probable that the original population have extended first in the south and then northern. Besides, the split between these two populations may be due to several tectonic and oceanographic events constituting a barrier for H. inornata settling.

  9. Transpiration efficiency and its relationship with carbon isotope discrimination under well-watered and water-stressed conditions in Stylosanthes scabra

    International Nuclear Information System (INIS)

    Thumma, B.R.; Naidu, B.P.; Cameron, D. F.; Bahnisch, L. M.

    1998-01-01

    Stylosanthes scabra cv. Seca is a widely sown tropical pasture legume in northern Australia and has a high degree of drought resistance. Identification of traits contributing to the drought resistance of Seca may be valuable for use in breeding programs. Transpiration efficiency (TE) has been suggested as one such trait contributing to drought resistance. Carbon isotope discrimination (Δ) has been proposed for estimating TE indirectly in C 3 plants. A glasshouse experiment was conducted using 8 accessions of S. scabra to identify whether Seca differs in TE from other accessions of S. scabra and to determine the relationship between TE and Δ) under both well-watered and water-stressed treatments. Seca maintained the highest TE (lowest Δ) under both control and stress treatments, and leaf Δ was significantly and negatively correlated with TE under both control and stress conditions. A significant and negative relationship was found between Δ and dry matter production under stress treatment. The interaction between accession and watering treatment was not significant for either TE or Δ. We also found a significant agreement between the performance in the field and in the laboratory for these 8 accessions. These results indicate that TE could be one of the significant factors contributing to drought resistance of Seca. Furthermore, Δ and/or specific leaf area may be useful as selection criteria in breeding programs to identify the lines with high TE. Copyright (1998) CSIRO Australia

  10. Self-assembly growth of alloyed NiPt nanocrystals with holothuria-like shape for oxygen evolution reaction with enhanced catalytic activity

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    Tao Ding

    2016-01-01

    Full Text Available Self-assembly growth of alloyed NiPt nanocrystals with holothuria-like wire shape has been achieved via a facile and moderate hydrothermal process at 120 °C for 1 h from the reaction of nickel nitrate and chloroplatinic acid in alkaline solution in the presence of ethanediamine and hydrazine hydrate. The holothuria-like alloyed NiPt wires are Ni-rich in composition (Ni23.6Pt and uniform in diameter with many tiny tips outstretched from the wires surface. The holothuria-like wires are assembled from granular subunits with the assistance of capping molecular of ethanediamine and the wires display an improved oxygen evolution reaction catalytic activity.

  11. Structural Elucidation of Novel Saponins in the Sea Cucumber Holothuria lessoni

    Science.gov (United States)

    Bahrami, Yadollah; Zhang, Wei; Chataway, Tim; Franco, Chris

    2014-01-01

    Sea cucumbers are prolific producers of a wide range of bioactive compounds. This study aimed to purify and characterize one class of compound, the saponins, from the viscera of the Australian sea cucumber Holothuria lessoni. The saponins were obtained by ethanolic extraction of the viscera and enriched by a liquid-liquid partition process and adsorption column chromatography. A high performance centrifugal partition chromatography (HPCPC) was applied to the saponin-enriched mixture to obtain saponins with high purity. The resultant purified saponins were profiled using MALDI-MS/MS and ESI-MS/MS which revealed the structure of isomeric saponins to contain multiple aglycones and/or sugar residues. We have elucidated the structure of five novel saponins, Holothurins D/E and Holothurinosides X/Y/Z, along with seven reported triterpene glycosides, including sulfated and non-sulfated saponins containing a range of aglycones and sugar moieties, from the viscera of H. lessoni. The abundance of novel compounds from this species holds promise for biotechnological applications. PMID:25110919

  12. Discovery of Novel Saponins from the Viscera of the Sea Cucumber Holothuria lessoni

    Science.gov (United States)

    Bahrami, Yadollah; Zhang, Wei; Franco, Chris

    2014-01-01

    Sea cucumbers, sometimes referred to as marine ginseng, produce numerous compounds with diverse functions and are potential sources of active ingredients for agricultural, nutraceutical, pharmaceutical and cosmeceutical products. We examined the viscera of an Australian sea cucumber Holothuria lessoni Massin et al. 2009, for novel bioactive compounds, with an emphasis on the triterpene glycosides, saponins. The viscera were extracted with 70% ethanol, and this extract was purified by a liquid-liquid partition process and column chromatography, followed by isobutanol extraction. The isobutanol saponin-enriched mixture was further purified by high performance centrifugal partition chromatography (HPCPC) with high purity and recovery. The resultant purified polar samples were analyzed using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS)/MS and electrospray ionization mass spectrometry (ESI-MS)/MS to identify saponins and characterize their molecular structures. As a result, at least 39 new saponins were identified in the viscera of H. lessoni with a high structural diversity, and another 36 reported triterpene glycosides, containing different aglycones and sugar moieties. Viscera samples have provided a higher diversity and yield of compounds than observed from the body wall. The high structural diversity and novelty of saponins from H. lessoni with potential functional activities presents a great opportunity to exploit their applications for industrial, agricultural and pharmaceutical use. PMID:24821624

  13. Discovery of Novel Saponins from the Viscera of the Sea Cucumber Holothuria lessoni

    Directory of Open Access Journals (Sweden)

    Yadollah Bahrami

    2014-05-01

    Full Text Available Sea cucumbers, sometimes referred to as marine ginseng, produce numerous compounds with diverse functions and are potential sources of active ingredients for agricultural, nutraceutical, pharmaceutical and cosmeceutical products. We examined the viscera of an Australian sea cucumber Holothuria lessoni Massin et al. 2009, for novel bioactive compounds, with an emphasis on the triterpene glycosides, saponins. The viscera were extracted with 70% ethanol, and this extract was purified by a liquid-liquid partition process and column chromatography, followed by isobutanol extraction. The isobutanol saponin-enriched mixture was further purified by high performance centrifugal partition chromatography (HPCPC with high purity and recovery. The resultant purified polar samples were analyzed using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS/MS and electrospray ionization mass spectrometry (ESI-MS/MS to identify saponins and characterize their molecular structures. As a result, at least 39 new saponins were identified in the viscera of H. lessoni with a high structural diversity, and another 36 reported triterpene glycosides, containing different aglycones and sugar moieties. Viscera samples have provided a higher diversity and yield of compounds than observed from the body wall. The high structural diversity and novelty of saponins from H. lessoni with potential functional activities presents a great opportunity to exploit their applications for industrial, agricultural and pharmaceutical use.

  14. Hemolytic and cytotoxic properties of saponin purified from Holothuria leucospilota sea cucumber.

    Science.gov (United States)

    Soltani, Mozhgan; Parivar, Kazem; Baharara, Javad; Kerachian, Mohammad Amin; Asili, Javad

    2014-10-01

    Holothuroids (sea cucumbers) are members of the phylum echinodermata, which produce saponins. Saponins exhibit a wide spectrum of pharmacological and biological activities. In this study, we isolated the crude saponins from the body wall of the dominant Iranian species of sea cucumber, Holothuria leucospilota (H. leucospilota). The purpose of this study was to confirm the presence of saponins in the Persian Gulf H. leucospilota and study the hemolytic and cytotoxic activities of these compounds. The body wall of sea cucumber was dried and powdered and the crude saponins were isolated using various solvents. The crude saponins were further purified by column chromatography using HP-20 resin. The foam test, Thin Layer Chromatography (TLC), hemolytic assay, and Fourier Transform Infrared Spectroscopy (FTIR) confirmed the presence of saponins. Cytotoxicity was analyzed using a 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay on A549 cells, a human lung cancer cell line. The foam test, hemolytic assay, and TLC supported the presence of saponin compounds in the 80% ethanol fraction of H. leucospilota. The infrared (IR) spectrum of the extract showed hydroxyl (-OH), alkyl (C-H), ether (C-O) and ester (-C=O) absorption characteristic of teriterpenoid saponins. The C-O-C absorption indicated glycoside linkages to the sapogenins. The crude saponin extracted from sea cucumber was cytotoxic to A549 cells. The 80% ethanol fraction of saponin isolated from H. leucospilota exhibited hemolytic activity and offers promise as an anti-cancer candidate.

  15. Structural analysis and anticoagulant activities of two sulfated polysaccharides from the sea cucumber Holothuria coluber.

    Science.gov (United States)

    Yang, Wenjiao; Cai, Ying; Yin, Ronghua; Lin, Lisha; Li, Zhongkun; Wu, Mingyi; Zhao, Jinhua

    2018-05-01

    Sulfated polysaccharides such as fucosylated glycosaminoglycan and fucan sulfate from echinoderm possess complex chemical structure and various biological activities. The two sulfated polysaccharides were purified from the low-value sea cucumber Holothuria coluber. Their physicochemical properties and chemical structures were analyzed and characterized by chemical and instrumental methods. Structural analysis clarified that the sea cucumber fucosylated glycosaminoglycan contains a chondroitin sulfate-like backbone and fucosyl branches with four various sulfation patterns. The fucan sulfate with molecular weight of 64.6 kDa comprises a central core of regular α(1 → 4)-linked tetrasaccharide repeating units, each of which is linked by a 4-O-sulfated fucose residue. Anticoagulant assays indicated that these sulfated polysaccharides possessed strong APTT prolonging activities and intrinsic factor Xase inhibitory activities, both of which decreased with the reduction of their molecular weights. Our results expand knowledge on the structural types of sulfated polysaccharides from sea cucumbers and further illustrate their functionality. Copyright © 2018. Published by Elsevier B.V.

  16. Purification, structural characterization and anticoagulant properties of fucosylated chondroitin sulfate isolated from Holothuria mexicana.

    Science.gov (United States)

    Mou, Jiaojiao; Wang, Cong; Li, Wenjing; Yang, Jie

    2017-05-01

    A novel fucosylated chondroitin sulfate (HmG) was isolated from sea cucumber Holothuria mexicana, the structure of which was characterized by monosaccharide composition, disaccharide composition, IR, 1 H and 13 C NMR spectrum, additionally with two dimensional NMR spectrum of degraded HmG (DHmG). The backbone of HmG was identified as chondroitin 6-O sulfate, while the major O-4 sulfated fucose branches linked to O-3 position of glucuronic acid in almost every disaccharide unit. The anticoagulant activities of HmG and DHmG were assessed and compared with heparin and low molecular weight heparin. The results indicated that HmG and DHmG both could significantly prolong the activated partial thrombo-plastin time, and the properties were well related to its molecular weight. DHmG showed similar anticoagulant properties to low molecular weight heparin with less bleeding risks, making it a safer anticoagulant drug. Copyright © 2017 Elsevier B.V. All rights reserved.

  17. Use of flubendazole as a therapeutic agent against rotifers (Brachionus plicatilis) in intensive cultures of the harpacticoid copepod Tisbe holothuriae

    DEFF Research Database (Denmark)

    Steenfeldt, Svend Jørgen; Nielsen, Johan W.

    2010-01-01

    down production and subsequently use a therapeutic agent to eliminate all zooplankton in the system before restart with a stock culture free of rotifers. We tested flubendazole as a mean of controlling rotifers (Brachionus plicatilis) in intensive laboratory cultures of the harpacticoid copepod (Tisbe...... holothuria). Flubendazole was lethal to rotifers in concentrations as low as 0.05 mg L−1. There was no significant effect on the concentration of copepods, even at the highest concentration tested, i.e. 5.0 mg L−1 flubendazole. We conclude that flubendazole is an effective drug for control of B. plicatilis...

  18. Hemolytic and Cytotoxic Properties of Saponin Purified from Holothuria leucospilota Sea Cucumber

    Directory of Open Access Journals (Sweden)

    Mozhgan Soltani

    2014-10-01

    Full Text Available Background: Holothuroids (sea cucumbers are members of the phylum echinodermata, which produce saponins. Saponins exhibit a wide spectrum of pharmacological and biological activities. In this study, we isolated the crude saponins from the body wall of the dominant Iranian species of sea cucumber, Holothuria leucospilota (H. leucospilota. The purpose of this study was to confirm the presence of saponins in the Persian Gulf H. leucospilota and study the hemolytic and cytotoxic activities of these compounds. Methods: The body wall of sea cucumber was dried and powdered and the crude saponins were isolated using various solvents. The crude saponins were further purified by column chromatography using HP-20 resin. The foam test, Thin Layer Chromatography (TLC, hemolytic assay, and Fourier Transform Infrared Spectroscopy (FTIR confirmed the presence of saponins. Cytotoxicity was analyzed using a 3-(4, 5-dimethylthiazol-2-yl-2, 5-diphenyltetrazolium bromide (MTT assay on A549 cells, a human lung cancer cell line. Results: The foam test, hemolytic assay, and TLC supported the presence of saponin compounds in the 80% ethanol fraction of H. leucospilota. The infrared (IR spectrum of the extract showed hydroxyl (-OH, alkyl (C-H, ether (C-O and ester (–C=O absorption characteristic of teriterpenoid saponins. The C-O-C absorption indicated glycoside linkages to the sapogenins. The crude saponin extracted from sea cucumber was cytotoxic to A549 cells. Conclusion: The 80% ethanol fraction of saponin isolated from H. leucospilota exhibited hemolytic activity and offers promise as an anti-cancer candidate.

  19. Ameliorative effect of the sea cucumber Holothuria arenicola extract against gastric ulcer in rats

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    Sohair R. Fahmy

    2015-10-01

    Full Text Available Holothuria arenicola is the most important and abundant sea cucumber species in the Mediterranean Sea on the Egyptian coast. This work aimed to investigate the prophylactic and the curative effects of H. arenicola extract HaE (200 mg/kg on gastric mucosal damage following indomethacin and cold stress in healthy rats. Sixty-four rats were randomly divided into four main groups. Rats of the first group (8 rats/group were administered distilled water orally (control group, rats of the second group (8 rats/group were administered single oral dose of indomethacin (150 mg/kg and exposed to cold stress (4 ± 1 °C for 30 min to induce gastric ulcer (GU model (ulcer group, rats of the third group, prophylactic group (24 rats/group were treated with HaE and/or ranitidine (RAN and then exposed to GU and rats of the fourth group, curative group (24 rats/group were exposed firstly to GU and then treated with HaE and/or RAN. The results clearly indicate that pre-treatment with HaE and/or ranitidine significantly decreases the ulcer index, showing 72.50%, 53.11% and 80.56% ulceration inhibition, respectively. However, post-treatment with HaE and/or ranitidine significantly decreases the ulcer index, showing 51.66%, 62.41% and 67.78% ulceration inhibition, respectively. The results also showed that pre and post-treatment with HaE and/or RAN significantly decreased gastric malondialdehyde (MDA level and enhanced reduced glutathione (GSH, catalase (CAT, glutathione-S-transferase (GST and superoxide dismutase (SOD levels. The results clearly indicate that pre-treatment with HaE is preferable.

  20. Sulfated polysaccharides with antioxidant and anticoagulant activity from the sea cucumber Holothuria fuscogliva

    Science.gov (United States)

    Li, Rongfeng; Yu, Huahua; Yue, Yang; Liu, Song; Xing, Rong'e.; Chen, Xiaolin; Li, Pengcheng

    2017-07-01

    Sea cucumber is a traditional nutritional food and medicinal resource with many bioactive components in China. Holothuria fuscogliva is a big sea cucumber with a rich of bioactive polysaccharides. To investigate the bioactivities of the polysaccharides from sea cucumber H. fuscogliva, we prepared the sulfated polysaccharides (HfP) from sea cucumber H. fuscogliva using a protease hydrolysis method. Antioxidant activities of HfP were investigated, including hydroxyl radical scavenging activity and superoxide radical scavenging activity. And, the anticoagulant activities of HfP were studied, including the activated partial thromboplastin time (APTT), prothrombin time (PT) and thrombin time (TT). The average molecular weight was 1 867.1 Da, with a sulfate content of 20.7%. In addition, the molar ratio of monosaccharide composition of HfP was Man: Rha: Glc A: Glc: Gal: Xyl: Fuc=0.083 6: 0.437: 0.134: 0:1.182: 0.748: 1. It had a strong antioxidant activity, the hydroxyl and superoxide radical scavenging activity EC50 of HfP was 3.74 and 0.037 mg/mL, respectively. It also showed a good anticoagulant activity in our study. The APTT of HfP was much higher than that of heparin sodium, and the PT and TT of HfP was close to that of heparin sodium at a low concentration. Therefore, HfP shows a good antioxidant and anticoagulant activity and it may become a potential candidate of the natural antioxidant and anticoagulant and will have a good application future in health product or medicine industry.

  1. LPS-induced genes in intestinal tissue of the sea cucumber Holothuria glaberrima.

    Directory of Open Access Journals (Sweden)

    Francisco Ramírez-Gómez

    2009-07-01

    Full Text Available Metazoan immunity is mainly associated with specialized cells that are directly involved with the immune response. Nevertheless, both in vertebrates and invertebrates other organs might respond to immune activation and participate either directly or indirectly in the ongoing immune process. However, most of what is known about invertebrate immunity has been restricted to immune effector cells and little information is available on the immune responses of other tissues or organs. We now focus on the immune reactions of the intestinal tissue of an echinoderm. Our study employs a non-conventional model, the echinoderm Holothuria glaberrima, to identify intestinal molecules expressed after an immune challenge presented by an intra-coelomic injection of lipopolysaccharides (LPS. The expression profiles of intestinal genes expressed differentially between LPS-injected animals and control sea water-injected animals were determined using a custom-made Agilent microarray with 7209 sea cucumber intestinal ESTs. Fifty (50 unique sequences were found to be differentially expressed in the intestine of LPS-treated sea cucumbers. Seven (7 of these sequences represented homologues of known proteins, while the remaining (43 had no significant similarity with any protein, EST or RNA database. The known sequences corresponded to cytoskeletal proteins (Actin and alpha-actinin, metabolic enzymes (GAPDH, Ahcy and Gnmt, metal ion transport/metabolism (major yolk protein and defense/recognition (fibrinogen-like protein. The expression pattern of 11 genes was validated using semi-quantitative RT-PCR. Nine of these corroborated the microarray results and the remaining two showed a similar trend but without statistical significance. Our results show some of the molecular events by which the holothurian intestine responds to an immune challenge and provide important information to the study of the evolution of the immune response.

  2. Common cellular events occur during wound healing and organ regeneration in the sea cucumber Holothuria glaberrima

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    García-Arrarás José E

    2007-10-01

    Full Text Available Abstract Background All animals possess some type of tissue repair mechanism. In some species, the capacity to repair tissues is limited to the healing of wounds. Other species, such as echinoderms, posses a striking repair capability that can include the replacement of entire organs. It has been reported that some mechanisms, namely extracellular matrix remodeling, appear to occur in most repair processes. However, it remains unclear to what extent the process of organ regeneration, particularly in animals where loss and regeneration of complex structures is a programmed natural event, is similar to wound healing. We have now used the sea cucumber Holothuria glaberrima to address this question. Results Animals were lesioned by making a 3–5 mm transverse incision between one of the longitudinal muscle pairs along the bodywall. Lesioned tissues included muscle, nerve, water canal and dermis. Animals were allowed to heal for up to four weeks (2, 6, 12, 20, and 28 days post-injury before sacrificed. Tissues were sectioned in a cryostat and changes in cellular and tissue elements during repair were evaluated using classical dyes, immmuohistochemistry and phalloidin labeling. In addition, the temporal and spatial distribution of cell proliferation in the animals was assayed using BrdU incorporation. We found that cellular events associated with wound healing in H. glaberrima correspond to those previously shown to occur during intestinal regeneration. These include: (1 an increase in the number of spherule-containing cells, (2 remodeling of the extracellular matrix, (3 formation of spindle-like structures that signal dedifferentiation of muscle cells in the area flanking the lesion site and (4 intense cellular division occurring mainly in the coelomic epithelium after the first week of regeneration. Conclusion Our data indicate that H. glaberrima employs analogous cellular mechanisms during wound healing and organ regeneration. Thus, it is possible

  3. Integration of independent component analysis with near-infrared spectroscopy for analysis of bioactive components in the medicinal plant Gentiana scabra Bunge

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    Yung-Kun Chuang

    2014-09-01

    Full Text Available Independent component (IC analysis was applied to near-infrared spectroscopy for analysis of gentiopicroside and swertiamarin; the two bioactive components of Gentiana scabra Bunge. ICs that are highly correlated with the two bioactive components were selected for the analysis of tissue cultures, shoots and roots, which were found to distribute in three different positions within the domain [two-dimensional (2D and 3D] constructed by the ICs. This setup could be used for quantitative determination of respective contents of gentiopicroside and swertiamarin within the plants. For gentiopicroside, the spectral calibration model based on the second derivative spectra produced the best effect in the wavelength ranges of 600–700 nm, 1600–1700 nm, and 2000–2300 nm (correlation coefficient of calibration = 0.847, standard error of calibration = 0.865%, and standard error of validation = 0.909%. For swertiamarin, a spectral calibration model based on the first derivative spectra produced the best effect in the wavelength ranges of 600–800 nm and 2200–2300 nm (correlation coefficient of calibration = 0.948, standard error of calibration = 0.168%, and standard error of validation = 0.216%. Both models showed a satisfactory predictability. This study successfully established qualitative and quantitative correlations for gentiopicroside and swertiamarin with near-infrared spectra, enabling rapid and accurate inspection on the bioactive components of G. scabra Bunge at different growth stages.

  4. Isolation and Characterization of Adhesive Secretion from Cuvierian Tubules of Sea Cucumber Holothuria forskåli (Echinodermata: Holothuroidea

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    Malgorzata Baranowska

    2011-01-01

    Full Text Available The sea cucumber Holothuria forskåli possesses a specialized system called Cuvierian tubules. During mechanical stimulation white filaments (tubules are expelled and become sticky upon contact with any object. We isolated a protein with adhesive properties from protein extracts of Cuvierian tubules from H. forskåli. This protein was identified by antibodies against recombinant precollagen D which is located in the byssal threads of the mussel Mytilus galloprovincialis. To find out the optimal procedure for extraction and purification, the identified protein was isolated by several methods, including electroelution, binding to glass beads, immunoprecipitation, and gel filtration. Antibodies raised against the isolated protein were used for localization of the adhesive protein in Cuvierian tubules. Immunostaining and immunogold electron microscopical studies revealed the strongest immunoreactivity in the mesothelium; this tissue layer is involved in adhesion. Adhesion of Cuvierian tubule extracts was measured on the surface of various materials. The extracted protein showed the strongest adhesion to Teflon surface. Increased adhesion was observed in the presence of potassium and EDTA, while cadmium caused a decrease in adhesion. Addition of antibodies and trypsin abolished the adhesive properties of the extract.

  5. Immune mediators of sea-cucumber Holothuria tubulosa (Echinodermata) as source of novel antimicrobial and anti-staphylococcal biofilm agents.

    Science.gov (United States)

    Schillaci, Domenico; Cusimano, Maria Grazia; Cunsolo, Vincenzo; Saletti, Rosaria; Russo, Debora; Vazzana, Mirella; Vitale, Maria; Arizza, Vincenzo

    2013-06-24

    The present study aims to investigate coelomocytes, immune mediators cells in the echinoderm Holothuria tubulosa, as an unusual source of antimicrobial and antibiofilm agents. The activity of the 5kDa peptide fraction of the cytosol from H. tubulosa coelomocytes (5-HCC) was tested against a reference group of Gram-negative and Gram-positive human pathogens. Minimal inhibitory concentrations (MICs) ranging from 125 to 500 mg/ml were determined against tested strains. The observed biological activity of 5-HCC could be due to two novel peptides, identified by capillary RP-HPLC/nESI-MS/MS, which present the common chemical-physical characteristics of antimicrobial peptides. Such peptides were chemically synthesized and their antimicrobial activity was tested. The synthetic peptides showed broad-spectrum activity at 12.5 mg/ml against the majority of the tested Gram-positive and Gram-negative strains, and they were also able to inhibit biofilm formation in a significant percentage at a concentration of 3.1 mg/ml against staphylococcal and Pseudomonas aeruginosa strains.The immune mediators in H. tubulosa are a source of novel antimicrobial peptides for the development of new agents against biofilm bacterial communities that are often intrinsically resistant to conventional antibiotics.

  6. Bioactive compounds, antioxidant potential, and hepatoprotective activity of sea cucumber (Holothuria atra) against thioacetamide intoxication in rats.

    Science.gov (United States)

    Esmat, Amr Y; Said, Mahmoud M; Soliman, Amel A; El-Masry, Khaled S H; Badiea, Elham Abdel

    2013-01-01

    The identification of the active phenolic compounds in the mixed extract of sea cucumber (Holothuria atra) body wall by high-performance liquid chromatography and an assessment of its hepatoprotective activity against thioacetamide-induced liver fibrosis in rats. Female Swiss albino rats were divided into four groups: normal controls; oral administration of a sea cucumber mixed extract (14.4 mg/kg of body weight) on days 2, 4, and 6 weekly for 8 consecutive weeks; intoxication with thioacetamide (200 mg/kg of body weight, intraperitoneally) on days 2 and 6 weekly for 8 wk; and oral administration of a sea cucumber extract and then intoxication with thioacetamide 2 h later for 8 wk. High-performance liquid chromatographic analysis of the sea cucumber mixed extract revealed the presence of some phenolic components, such as chlorogenic acid, pyrogallol, rutin, coumaric acid, catechin, and ascorbic acid. In vitro studies have shown that the extract has a high scavenging activity for the nitric oxide radical, a moderate iron-chelating activity, and a weak inhibitory effect of lipid peroxidation. The subchronic oral administration of sea cucumber extract to the rats did not show any toxic side effects but increased hepatic superoxide dismutase and glutathione peroxidase activities. The coadministration of sea cucumber extract and thioacetamide (protection modality) normalized serum direct bilirubin, alanine and aspartate aminotransferases, hepatic malondialdehyde, and hydroxyproline concentrations and antioxidant enzyme activities. In addition, the histologic examination of liver sections from the protection group that were stained with hematoxylin and eosin showed substantial attenuation of the degenerative cellular changes and regressions in liver fibrosis and necrosis induced by the thioacetamide intoxication. Sea cucumber mixed extract contains physiologically active phenolic compounds with antioxidant activity, which afforded a potential hepatoprotective activity

  7. Selective toxicity of persian gulf sea cucumber holothuria parva on human chronic lymphocytic leukemia b lymphocytes by direct mitochondrial targeting.

    Science.gov (United States)

    Salimi, Ahmad; Motallebi, Abbasali; Ayatollahi, Maryam; Seydi, Enayatollah; Mohseni, Ali Reza; Nazemi, Melika; Pourahmad, Jalal

    2017-04-01

    Natural products isolated from marine environment are well known for their pharmacodynamic potential in diversity of disease treatments such as cancer or inflammatory conditions. Sea cucumbers are one of the marine animals of the phylum Echinoderm. Many studies have shown that the sea cucumber contains antioxidants and anti-cancer compounds. Chronic lymphocytic leukemia (CLL) is a disease characterized by the relentless accumulation of CD5 + B lymphocytes. CLL is the most common leukemia in adults, about 25-30% of all leukemias. In this study B lymphocytes and their mitochondria (cancerous and non-cancerous) were obtained from peripheral blood of human subjects and B lymphocyte cytotoxicity assay, and caspase 3 activation along with mitochondrial upstream events of apoptosis signaling including reactive oxygen species (ROS) production, collapse of mitochondrial membrane potential (MMP) and mitochondrial swelling were determined following the addition of Holothuria parva extract to both cancerous and non-cancerous B lymphocytes and their mitochondria. Our in vitro finding showed that mitochondrial ROS formation, MMP collapse, and mitochondrial swelling and cytochrome c release were significantly (P < 0.05) increased after addition of different concentrations of H. parva only in cancerous BUT NOT normal non-cancerous mitochondria. Consistently, different concentrations of H. parva significantly (P < 0.05) increased cytotoxicity and caspase 3 activation only in cancerous BUT NOT normal non-cancerous B lymphocytes. These results showed that H. parva methanolic extract has a selective mitochondria mediated apoptotic effect on chronic lymphocytic leukemia B lymphocytes hence may be promising in the future anticancer drug development for treatment of CLL. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1158-1169, 2017. © 2016 Wiley Periodicals, Inc.

  8. Fucosylated chondroitin sulfates from the body wall of the sea cucumber Holothuria forskali: conformation, selectin binding, and biological activity.

    Science.gov (United States)

    Panagos, Charalampos G; Thomson, Derek S; Moss, Claire; Hughes, Adam D; Kelly, Maeve S; Liu, Yan; Chai, Wengang; Venkatasamy, Radhakrishnan; Spina, Domenico; Page, Clive P; Hogwood, John; Woods, Robert J; Mulloy, Barbara; Bavington, Charlie D; Uhrín, Dušan

    2014-10-10

    Fucosylated chondroitin sulfate (fCS) extracted from the sea cucumber Holothuria forskali is composed of the following repeating trisaccharide unit: → 3)GalNAcβ4,6S(1 → 4) [FucαX(1 → 3)]GlcAβ(1 →, where X stands for different sulfation patterns of fucose (X = 3,4S (46%), 2,4S (39%), and 4S (15%)). As revealed by NMR and molecular dynamics simulations, the fCS repeating unit adopts a conformation similar to that of the Le(x) blood group determinant, bringing several sulfate groups into close proximity and creating large negative patches distributed along the helical skeleton of the CS backbone. This may explain the high affinity of fCS oligosaccharides for L- and P-selectins as determined by microarray binding of fCS oligosaccharides prepared by Cu(2+)-catalyzed Fenton-type and photochemical depolymerization. No binding to E-selectin was observed. fCS poly- and oligosaccharides display low cytotoxicity in vitro, inhibit human neutrophil elastase activity, and inhibit the migration of neutrophils through an endothelial cell layer in vitro. Although the polysaccharide showed some anti-coagulant activity, small oligosaccharide fCS fragments had much reduced anticoagulant properties, with activity mainly via heparin cofactor II. The fCS polysaccharides showed prekallikrein activation comparable with dextran sulfate, whereas the fCS oligosaccharides caused almost no effect. The H. forskali fCS oligosaccharides were also tested in a mouse peritoneal inflammation model, where they caused a reduction in neutrophil infiltration. Overall, the data presented support the action of fCS as an inhibitor of selectin interactions, which play vital roles in inflammation and metastasis progression. Future studies of fCS-selectin interaction using fCS fragments or their mimetics may open new avenues for therapeutic intervention. © 2014 by The American Society for Biochemistry and Molecular Biology, Inc.

  9. The effects of body temperature and mass on the postprandial metabolic responses of the African egg-eating snakes Dasypeltis scabra and Dasypeltis inornata.

    Science.gov (United States)

    Greene, Sara; McConnachie, Suzanne; Secor, Stephen; Perrin, Mike

    2013-06-01

    African egg-eating snakes (Dasypeltis) feed only on freshly laid bird eggs which they perforate within their esophagus before swallowing the liquid contents and regurgitating the empty shell. Compared to a snake's typical intact meal, the liquid diet of Dasypeltis would expectedly generate a more moderate postprandial metabolic response and specific dynamic action (SDA). Free-ranging Dasypeltis feed over a range of ambient temperatures and thereby experience predicted temperature-dependent shifts in the duration and magnitude of their postprandial metabolic response. Such shifts would undoubtedly be shared among different species and age classes of Dasypeltis. To examine these expectations, we measured pre- and postprandial metabolic rates of adult Dasypeltis inornata and adult and neonate Dasypeltis scabra in response to liquid egg meals weighing 20% of snake body mass at 20, 25, 27, 30, and 32 °C. With an increase in body temperature, postprandial metabolic profiles of neonate and adult snakes became narrower and shorter in duration. Specific dynamic action varied among temperature treatments, increasing from 20 to 32 °C. Standard metabolic rate, postprandial peak metabolic rate, and SDA scaled with mass exponents that typically did not differ from 1.0. As expected, Dasypeltis digesting a liquid egg diet experienced a more modest postprandial response and SDA, expending on average only 10.6% of the meal's energy on the breakdown, absorption, and assimilation of the egg meal, whereas other colubrids consuming intact rodent or fish meals expend on average 16.3% of the meal's energy on digestion and assimilation. Actively foraging and feeding throughout the avian egg laying season enable Dasypeltis to survive when eggs are not available. The adaptive suite of traits that enable Dasypeltis to consume eggs of large relative size and ingest only the liquid contents may also be joined by physiological adaptations specific to their liquid diet and extended bouts of

  10. Traditional Chinese medicine herbal extracts of Cibotium barometz, Gentiana scabra, Dioscorea batatas, Cassia tora, and Taxillus chinensis inhibit SARS-CoV replication

    Directory of Open Access Journals (Sweden)

    Chih-Chun Wen

    2011-10-01

    Full Text Available Development of anti-severe acute respiratory syndrome associated coronavirus (SARS-CoV agents is pivotal to prevent the reemergence of the life-threatening disease, SARS. In this study, more than 200 extracts from Chinese medicinal herbs were evaluated for anti-SARS-CoV activities using a cell-based assay that measured SARS-CoV-induced cytopathogenic effect (CPE in vitro on Vero E6 cells. Six herbal extracts, one each from Gentianae Radix (龍膽 lóng dǎn; the dried rhizome of Gentiana scabra, Dioscoreae Rhizoma (山藥 shān yào; the tuber of Dioscorea batatas, Cassiae Semen (決明子 jué míng zǐ; the dried seed of Cassia tora and Loranthi Ramus (桑寄生 sāng jì shēng; the dried stem, with leaf of Taxillus chinensis (designated as GSH, DBM, CTH and TCH, respectively, and two from Rhizoma Cibotii (狗脊 gǒu jǐ; the dried rhizome of Cibotium barometz (designated as CBE and CBM, were found to be potent inhibitors of SARS-CoV at concentrations between 25 and 200 μg/ml. The concentrations of the six extracts needed to inhibit 50% of Vero E6 cell proliferation (CC50 and 50% of viral replication (EC50 were determined. The resulting selective index values (SI=CC50/EC50 of the most effective extracts CBE, GSH, DBM, CTH and TCH were>59.4,> 57.5,> 62.1,> 59.4, and>92.9, respectively. Among these extracts, CBM and DBM also showed significant inhibition of SARS-CoV 3CL protease activity with IC50 values of 39 μg/ml and 44 μg/ml, respectively. Our findings suggest that these six herbal extracts may have potential as candidates for future development of anti-SARS therapeutics.

  11. Investigations of Antibacterial Activity of Methanol and Aqueous Ex-tracts of the Body Wall of Sea Cucumber Holothuria leucospilota on some Human Pathogenic Bacteria

    Directory of Open Access Journals (Sweden)

    M. Nazemi

    2016-04-01

    Full Text Available Introduction & Objective: Holothuria leucospilota, sea cucumber, is a species of the Phylum Echinodermata. Sea cucumbers have the most natural products with biological activity. In this study we investigated the antibacterial activity of aqueous and methanol extract of H. leucospilota used against gram positive and gram negative human pathogenic bacteria. Materials & Methods: 9 Samples of H. leucospilota were harvested from the Hengam Island,. The methanol extract was prepared from the powder of sea cucumber. The antibacterial activity of the extracts was determined by broth dilution methods against clinical Gram-negative bacteria to identify MIC and MBC. Results: Aqueous extract of H. leucospilota was inactive on the bacteria. Methanol extract was active on Gram-negetive bacteria; E. coli, Salmonella typhi and Serratia marcescens. But it killed only Salmonella typhi and Serratia marcescens. The MBC of H. leucospilota methanol extract was 10 mg/ml. Methanol extract was active on all Gram-positive bacteria; B. pumilus, B. cereus and S. aureus but it killed only S. aureus. The MBC of H. leucospilota methanol extract was 40 mg/ml. Conclusion: Based on our results, H. leucospilota methanol extract. can be considered as a source of novel antibiotic. Contrary to many marine organisms, sea cucumbers are active against gram-negative bacteria. (Sci J Hamadan Univ Med Sci 2016; 23 (1:75-82

  12. Megadenus atrae n. sp., an endoparasitic eulimid gastropod (Mollusca) from the black sea cucumber Holothuria atra Jaeger (Aspidochirotida: Holothuriidae) in the Indo-West Pacific.

    Science.gov (United States)

    Takano, Tsuyoshi; Warén, Anders; Kano, Yasunori

    2017-07-01

    An eulimid gastropod, Megadenus atrae n. sp., endoparasitic in the cloacal chamber of the black sea cucumber Holothuria atra Jaeger is described from Okinawa, Japan, as the fifth species of the genus. Conspecific specimens have also been found from southeast India, northeast Australia and New Caledonia. The generic assignment is justified by the presence of (i) a thick, long proboscis that bears a large fold (pseudopallium) near the base and a collar-like structure at the middle, (ii) a thin, globose shell that is covered by the pseudopallium, and (iii) sexual dimorphism with the female generally larger than the male. The new species is distinguishable from the four previously described congeners by its cauldron-shaped pseudopallium, moderately-developed collar of the proboscis and rounded basal lip of the shell. The comparisons of the size and sex of solitary and paired individuals support a previous hypothesis that the species of Megadenus Rosén, 1910 are protandrous with environmental sex determination. The present species occurs mostly as monogamous pairs despite its very low population density, implying that the presence of a conspecific individual acts as a cue for larval settlement. Both mechanisms would increase individual reproductive success in such permanent parasites with low prevalence and abundance as the species of Megadenus.

  13. The Effect of Sediment Quality and Stocking Density on Survival and ...

    African Journals Online (AJOL)

    The effect of sediment quality and stocking density on the survival and growth of the sea cucumber Holothuria scabra reared in nursery ponds and in pens was studied at Aqua-Lab Farm in Toliara, south west Madagascar. Three types of sediment (micro-atoll, mangrove and seagrass bed) were tested for their food quality ...

  14. Western Indian Ocean Journal of Marine Science - Vol 9, No 2 (2010)

    African Journals Online (AJOL)

    The Effect of Sediment Quality and Stocking Density on Survival and Growth of the Sea Cucumber Holothuria scabra Reared in Nursery Ponds and Sea Pens ... Vertical Migration of Gold-spot Herring (Herklotsichthys quadrimaculatus) Larvae on Sofala Bank, Mozambique · EMAIL FREE FULL TEXT EMAIL FREE FULL ...

  15. Expression of GFSKLYFamide-like neuropeptide in the digestive ...

    African Journals Online (AJOL)

    Neuropeptides are key mediators of physiological processes in animals and a considerable amount of information has been accumulated on their diversity and functions across phyla. However, progress in echinoderm neurobiology has been much slower than others. The sea cucumber Holothuria scabra is an ...

  16. Prevalence of Haplorchis taichui in Field-Collected Snails: A Molecular Approach

    Science.gov (United States)

    Chontananarth, Thapana

    2010-01-01

    The prevalence of the cercarial stage of an intestinal trematode, Haplorchis taichui, in thiarid snails (Gastropoda: Thiaridae) was investigated using light microscope and species-specific PCR procedures. A total of 988 snails were collected from Mae Taeng district, Chiang Mai province, northern Thailand, which comprised of 3 species; Melanoides tuberculata, Tarebia granifera, and Thiara scabra. The overall prevalence of pleurolophocercous cercariae was 21.7% as determined by the morphology. For genetic detection of H. taichui infection in snails, 2 primers Hapt_F (5'-GGCCAACGCAATCGTCATCC-3') and Hapt_R (5'-GCGTCGGGTTTCAGACATGG-3'), were used. The genomic DNA of H. taichui, which was used as a positive control, gave an amplification of the 256 bp fragment. The overall prevalence of H. taichui from specific PCR was 9.7%. The proportion of H. taichui among the pleurolophocercous cercariae in this study was 44.9%. PMID:21234240

  17. Teripang Pasir Meningkatkan Kandungan Antioksidan Superoksida Dismutase pada Pankreas Tikus Diabetes (SEA CUCUMBER INCREASED ANTIOXIDANT SUPEROXIDE DISMUTASE IN THE PANCREATIC TISSUE OF DIABETIC RATS

    Directory of Open Access Journals (Sweden)

    Tutik Wresdiyati

    2015-05-01

    Full Text Available High level of blood glucose is an indicator for diabetes mellitus (DM condition. The condition iscaused by low level of insulin secretion or impairement of insulin receptor. The number of DM patientincreases every year. The World Health Organization reported that the number of DM patient in Indonesiawas the 4th highest in the world, after following China, India, and the United States of America, respectively.This study was conducted to analyze the effect of sea cucumber (Holothuria scabra J on the profile ofantioxidant copper, zinc-superoxide dismutase (Cu, Zn-SOD in the pancreatic tissues of diabetic rats. Atotal of 25 male white rats (Sprague Dawley were used in this study. They were divided into five groups;(1 negative control (KN, (2 positive control, diabetic rats (KP, (3 diabetic rats treated with hydrolyzatedprotein of sea cucumber (HDL, (4 diabetic rats treated with concentrated protein of sea cucumber (KST,and (5 diabetic rats treated with isolated protein of sea cucumber (ISL, respectively. Diabetic conditionwas obtained by alloxan injection 110 mg/kg bw. The treatments were done for 28 days. At the end oftreatment period, the rats were sacrificed and pancreatic tissues were collected and fixed in Bouin solution and then processed to paraffin embedding standard method. The tissues were then stained withimmunohistochemical staining techniques using monoclonal antibody of Cu, Zn-SOD. The results showedthat treatment of HDL, KST, and ISL of sea cucumber (Holothuria scabra J increased the content ofantioxidant Cu, Zn-SOD either in Langerhans islets and acinar cells of pancreatic tissues-diabetic rats.The HDL of sea cucumber treatment gave the best effect in increasing the antioxidant content of Cu, Zn-SOD in pancreatic tissue of diabetic rats.

  18. Effects of processing on proximate and fatty acid compositions of six commercial sea cucumber species of Sri Lanka.

    Science.gov (United States)

    Nishanthan, G; Kumara, P A D A; de Croos, M D S T; Prasada, D V P; Dissanayake, D C T

    2018-05-01

    Processing and its impacts on proximate composition and fatty acid profile of six sea cucumber species; Bohadschia marmorata, Stichopus chloronotus, Holothuria spinifera, Thelenota anax, Holothuria scabra and Bohadschia sp. 1 collected from the northwest coast of Sri Lanka were analyzed. Sea cucumbers are processed into bêche - de - mer by both domestic and industrial level processors following the similar steps of cleaning, evisceration, first boiling, salting, second boiling and drying. However, domestically processed bêche - de - mer always reported a higher percentage of moisture, crude ash, crude fat and lower percentage of crude protein than industrially processed products. Although processing resulted in a significant reduction of total SFA and MUFA in fresh individuals of most of these species, total PUFA increased significantly in processed individuals excluding Bohadschia species. Palmitic acid was found to be the most dominant fatty acid in all these species followed by eicosapentaenoic acid, which showed a significant increase in processed products, except Bohadschia sp. 1. Total MUFA were higher than total SFA in all sea cucumber species having exceptions in Bohadchia sp.1 and fresh S. chloronotus. These findings will make a significant contribution to fill the gaps in existing information as no any previous information is available for species like H. spinifera and S. chloronotus .

  19. First echinoderm trehalase from a tropical sea cucumber (Holothuria leucospilota): Molecular cloning and mRNA expression in different tissues, embryonic and larval stages, and under a starvation challenge.

    Science.gov (United States)

    Huo, Da; Jiang, Xiao; Wu, Xiaofen; Ren, Chunhua; Yu, Zonghe; Liu, Jinshang; Li, Hongmei; Ruan, Yao; Wen, Jin; Chen, Ting; Hu, Chaoqun

    2018-04-29

    Trehalases are a group of enzymes that catalyse the conversion of trehalose to glucose, and they are observed in most organisms. In this study, the first echinoderm trehalase, designated Hl-Tre, was identified from a tropical sea cucumber, Holothuria leucospilota. The full-length cDNA of H. leucospilota trehalase (Hl-Tre) is 2461 bp in length with an open reading frame (ORF) of 1788 bp that encodes a 595-amino-acid protein with a deduced molecular weight of 67.95 KDa. The Hl-Tre protein contains a signal peptide at the N-terminal and a functional trehalase domain, which includes the signature motifs 1 and 2. The mRNA expression of Hl-Tre was ubiquitously detected in all selected tissues, with the highest level being detected in the intestine. By in situ hybridization (ISH), the positive Hl-Tre signals were observed in the brush borders of the intestinal mucosa. In embryonic and larval stages, the transcript levels of Hl-Tre decreased during embryonic development and increased after the pentactula stage. After a challenge of starvation, the intestinal Hl-Tre mRNA levels were observed to be first decreased and partially recovered thereafter. Overall, our study provided the first evidence for trehalase in echinoderms and showed that this enzyme was potentially linked to a trehalose metabolic pathway in sea cucumbers. Copyright © 2017. Published by Elsevier B.V.

  20. Protective effects of sea cucumber (Holothuria atra) extract on testicular dysfunction induced by immune suppressant drugs in Wistar rats.

    Science.gov (United States)

    Saad, D Y; Soliman, M M; Mohamed, A A; Youssef, G B

    2018-04-23

    The current study was aimed to evaluate the protective effect of Holothurian atra (HA) extract; naturally occurring marine resource, against methotrexate (MTX) induced testicular dysfunction. Mature rats received either MTX (20 mg/kg, intraperitoneally) or saline on the 7th day of experiment al design. Seven days prior and after MTX-injection, rats received HA at dose of 300 mg/kg intragastrically (HA + MTX group; HA group alone). Serum was extracted and testicular tissues were examined for the changes in serum biochemistry (liver & kidney biomarkers, testicular hormones and antioxidants), molecular and histopthological alterations using RT-PCR and immunohistochemistry. MTX-injected rats induced alteration in all testicular parameters. Prior administration of HA ameliorated the MTX-induced oxidative stress. HA administration normalised MTX-induced decrease in serum levels of interleukin-6 (IL-6), tumour necrosis factor alpha (TNF-α), interferon-gamma (IFN-γ), reproductive hormones (FSH, LH and testosterone) and antioxidants GST, SOD and catalase. MTX-injected rats down-regulated mRNA expression of GST, SOD, steroidogenesis associated genes, IFN-γ, Bcl2 and NFKB. MTX up-regulated BAX expression and caspase 9 immunoreactivity that were ameliorated in HA + MTX group. Collectively, HA ameliorated and restored all altered genes. In conclusion, HA is a promising supplement that is helpful in protection against testicular cytotoxicity and dysfunction induced by methotrexate. © 2018 Blackwell Verlag GmbH.

  1. A toxin from Holothuria leucospilota (Brandt)

    Digital Repository Service at National Institute of Oceanography (India)

    Jayasree, V.; SenGupta, R.; Bhavanarayana, P.V.

    Holothurians are marine echinoderms. Despite their limited mobility and absence of a protective hard shell, they are seldom preyed upon. Thus, one would expect them to have some type of chemical defence mechanism in the form of toxic compounds...

  2. Collective Improvisation

    Directory of Open Access Journals (Sweden)

    Clare M. Cooper

    2016-08-01

    Full Text Available Collective improvisation as a creative practice is intensely social, trusting, unpopular, anti-hierarchical and, for these reasons, political. Cooper describes the risks and rich rewards of improvising with fellow artists and identifies the parallels between improvising ensembles of musicians in Australia with the collectively painted protest banners of the Taring Padi Collective in Indonesia after a brief visit to Jogjakarta.

  3. Culture collections.

    Science.gov (United States)

    Smith, David

    2012-01-01

    Culture collections no matter their size, form, or institutional objectives play a role in underpinning microbiology, supplying the resources for study, innovation, and discovery. Their basic roles include providing a mechanism for ex situ conservation of organisms; they are repositories for strains subject to publication, taking in safe, confidential, and patent deposits from researchers. They supply strains for use; therefore, the microorganisms provided must be authentic and preserved well, and any associated information must be valid and sufficient to facilitate the confirmation of their identity and to facilitate their use. The organisms must be collected in compliance with international conventions, international and national legislation and distributed to users indicating clearly the terms and conditions under which they are received and can be used. Collections are harmonizing approaches and characterizing strains to meet user needs. No one single collection can carry out this task alone, and therefore, it is important that output and strategy are coordinated to ensure culture collections deliver the basic resources and services microbiological innovation requires. This chapter describes the types of collection and how they can implement quality management systems and operate to deliver their basic functions. The links to information sources given not only provide support for the practitioners within collections but also provide guidance to users on accessing the huge resource available and how they can help ensure microbiology has the resources and a solid platform for future development. Copyright © 2012 Elsevier Inc. All rights reserved.

  4. Collective Efficacy

    DEFF Research Database (Denmark)

    Chen, Ying; Zhou, Xiaohu; Klyver, Kim

    2018-01-01

    at manufacturing companies show that benevolent leadership and moral leadership, both components of paternalistic leadership, are positively related to organizational commitment and further that collective efficacy mediates the moral leadership–organizational commitment relationship. We did not find a relationship...... between authoritarian leadership and organizational commitment. Besides, it was found that team cohesion negatively moderates the relationship between moral leadership and collective efficacy and positively moderates the relationship between collective efficacy and organizational commitment. Explanations......Based on social cognitive theory, we theorize that collective efficacy plays a mediating role in the relationship between paternalistic leadership and organizational commitment and that this mediating role depends on team cohesion. The empirical results from a study of 238 employees from 52 teams...

  5. Collective Security

    DEFF Research Database (Denmark)

    Galster, Kjeld

    in worldwide market conditions left perceptible ripples in Danish economy, budget discussions grew in importance over this period. The pacifist stance entailed disinclination to accept that the collective security concept and international treaties and accords signed by Denmark should necessitate credible...... and other international treaties provided arguments for adjusting the foreign and security policy ambitions, and since the general flux in worldwide market conditions left perceptible ripples in Danish economy, budget discussions grew in importance over this period. The pacifist stance entailed......Collective Security: National Egotism (Abstract) In Danish pre-World War I defence debate the notion of collective security is missing. During the early years of the 19th century, the political work is influenced by a pervasive feeling of rising tension and danger on the continent of Europe...

  6. Locals Collection

    Directory of Open Access Journals (Sweden)

    Stephen Hastings-King

    2010-03-01

    Full Text Available A locals collection is a set of parameters that are used to delimit data-mining operations. This piece uses a collection of locals from around Essex Massachusetts to shape and delimit an interrogation of post-reality in contemporary America. It explores the notion of crisis, the possibility of a crisis of empire that may or may not emerge in a media-space that does not allow crisis of empire to be mentioned and relations this maybe-crisis to the various levels of economic dysfunction that have become evident since late 2008. But mostly this piece explores ways in which particular stories about particular people do and do not link/link to these larger-scale narratives. This is the first of a potential series of locals collections that will mine the American post-real.

  7. Concurrent Collections

    OpenAIRE

    Budimlić, Zoran; Burke, Michael; Cavé, Vincent; Knobe, Kathleen; Lowney, Geoff; Newton, Ryan; Palsberg, Jens; Peixotto, David; Sarkar, Vivek; Schlimbach, Frank; Taşırlar, Sağnak

    2010-01-01

    We introduce the Concurrent Collections (CnC) programming model. CnC supports flexible combinations of task and data parallelism while retaining determinism. CnC is implicitly parallel, with the user providing high-level operations along with semantic ordering constraints that together form a CnC graph. We formally describe the execution semantics of CnC and prove that the model guarantees deterministic computation. We evaluate the performance of CnC implementations on several applications an...

  8. Collective Success or Collective Failure?

    DEFF Research Database (Denmark)

    Fayyaz, Anjum

    study of soccer village project to learn how various attempts at facilitating joint CSR action in the Pakistani football manufacturing have consistently failed in addressing international CSR compliance demands. I conclude that this form of collective failure – along with technological changes, lack...... of innovation, and government failure - can partly explain why Sialkot has been marginalized in terms of its overall share of world football manufacturing in the last decade....

  9. Value, market preferences and trade of Beche-de-mer from Pacific Island sea cucumbers.

    Directory of Open Access Journals (Sweden)

    Steven W Purcell

    Full Text Available Market preferences of natural resources contribute to shape their exploitation and production. Beche-de-mer, the product after gutting, cooking, salting and drying sea cucumbers, is exported worldwide to Asian dried seafood markets. A better understanding of the trade, value and market preferences of Pacific island beche-de-mer could identify critical postharvest processing techniques and management strategies for fisheries and aquaculture. Data were collected on export prices and trade of beche-de-mer from Kiribati, Fiji, Tonga and New Caledonia, and the selling prices, respective sizes and organoleptic properties of the products in stores in China. Export prices varied considerably within and among the four countries and low-value species were the most exported by volume. Most of the beche-de-mer from the four Pacific islands is exported to Hong Kong, where quality products are sold and others are distributed to mainland China. Prices of the beche-de-mer in Chinese stores varied up to ten-fold and were mostly influenced by species, body size and, to a lesser extent, physical damage to the products. Market prices across species (averaging US$15-385 kg-1 appear to have mostly increased six- to twelve-fold over the past decade. The data allude that fisheries for Holothuria scabra, H. lessoni, H. fuscogilva, H. whitmaei and Thelenota ananas should be most carefully managed because they were the highest-value species and under greatest demand. The relationships between size of beche-de-mer and sale price were species specific and highly varied. This study also highlights the need for better regulations and/or enforcement of minimum size limits in sea cucumber fisheries, which can help to maximise economic benefits of wild stocks.

  10. Reproduction in Holothuria (Mertensiothuria) leucospilota (Brandt) from Anjuna, Goa

    Digital Repository Service at National Institute of Oceanography (India)

    Jayasree; Bhavanarayana, P.V

    stream_size 8 stream_content_type text/plain stream_name Bull_Cen_Mar_Fish_Res_Inst_1994_46_57.pdf.txt stream_source_info Bull_Cen_Mar_Fish_Res_Inst_1994_46_57.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset...=ISO-8859-1 ...

  11. Workforce Competitiveness Collection. "LINCS" Resource Collection News

    Science.gov (United States)

    Literacy Information and Communication System, 2011

    2011-01-01

    This edition of "'LINCS' Resource Collection News" features the Workforce Competitiveness Collection, covering the topics of workforce education, English language acquisition, and technology. Each month Collections News features one of the three "LINCS" (Literacy Information and Communication System) Resource Collections--Basic…

  12. Collection Directions: The Evolution of Library Collections and Collecting

    Science.gov (United States)

    Dempsey, Lorcan; Malpas, Constance; Lavoie, Brian

    2014-01-01

    This article takes a broad view of the evolution of collecting behaviors in a network environment and suggests some future directions based on various simple models. The authors look at the changing dynamics of print collections, at the greater engagement with research and learning behaviors, and at trends in scholarly communication. The goal is…

  13. Assessment of the sea cucumber resource and fishery in the Bolinao-Anda reef system

    Directory of Open Access Journals (Sweden)

    Ronald Dionnie D. Olavides

    Full Text Available Fishery-independent and -dependent surveys were conducted to assess the status of the sea cucumber resource and fishery in Bolinao and Anda, Pangasinan. Thirty-five species of holothurians were recorded in 25 sampling stations within seagrass beds, coral reefs and mixed habitats. The estimated total population density of all aspidochirote sea cucumber species is 63 ind. ha-1. The artisanal multi-species fishery is at present primarily based on Holothuria scabra, Stichopus horrens and Bohadschia marmorata although there are indications that other high-value species were fished to local extinction. Taken together, the small sizes (<20 cm body length of the majority of aspidochirote sea cucumbers, their low population densities, and the continuous decrease in catches are clear signs of an overexploited fishery that will likely collapse without management intervention. Adaptive management strategies for Bolinao and Anda are recommended based on the findings of this survey.

  14. Towards modern petrological collections

    NARCIS (Netherlands)

    Kriegsman, L.M.

    2004-01-01

    Petrological collections result from sampling for academic research, for aesthetic or commercial reasons, and to document natural diversity. Selection criteria for reducing and enhancing collections include adequate documentation, potential for future use, information density, time and money

  15. Old tropical botanical collections

    DEFF Research Database (Denmark)

    Friis, Ib

    2017-01-01

    The early history of botanical collections is reviewed, with particular emphasis on old collections from the tropics. The information available about older and newer botanical collections from the tropics was much improved after World War Two, including better lists of validly published names, more...

  16. Satellite image collection optimization

    Science.gov (United States)

    Martin, William

    2002-09-01

    Imaging satellite systems represent a high capital cost. Optimizing the collection of images is critical for both satisfying customer orders and building a sustainable satellite operations business. We describe the functions of an operational, multivariable, time dynamic optimization system that maximizes the daily collection of satellite images. A graphical user interface allows the operator to quickly see the results of what if adjustments to an image collection plan. Used for both long range planning and daily collection scheduling of Space Imaging's IKONOS satellite, the satellite control and tasking (SCT) software allows collection commands to be altered up to 10 min before upload to the satellite.

  17. Collection time again.

    Science.gov (United States)

    Elder, D L

    1984-01-01

    Looking forward to your next round of collection calls? Few of us do, yet collections play a vital role in every group practice, large or small. This crop of practical collection tips is guaranteed to boost the morale of everyone involved in the collection process. Not only are the basics of a good collection call set down, but result-getting responses to frequent debtor excuses are provided. Telephoning the debtor patient need not be a dreaded task. Just have confidence, keep in mind that the patient does owe you for services rendered in good faith, and pick up the phone--it's a snap!

  18. Collective Lyapunov modes

    International Nuclear Information System (INIS)

    Takeuchi, Kazumasa A; Chaté, Hugues

    2013-01-01

    We show, using covariant Lyapunov vectors in addition to standard Lyapunov analysis, that there exists a set of collective Lyapunov modes in large chaotic systems exhibiting collective dynamics. Associated with delocalized Lyapunov vectors, they act collectively on the trajectory and hence characterize the instability of its collective dynamics. We further develop, for globally coupled systems, a connection between these collective modes and the Lyapunov modes in the corresponding Perron–Frobenius equation. We thereby address the fundamental question of the effective dimension of collective dynamics and discuss the extensivity of chaos in the presence of collective dynamics. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to ‘Lyapunov analysis: from dynamical systems theory to applications’. (paper)

  19. Reflections on collectivity

    International Nuclear Information System (INIS)

    Feshbach, H.

    1983-01-01

    Comments are made on papers presented to the International School of Nuclear Physics, Erice (1982) concerning collective bands and collectivity in nuclei. The importance of these collective modes of motion, the role of the Bohr-Mottelson model and the Interacting Boson Models (IBM-1 and IBM-2), and experimental evidence presented by a number of workers, are examined. The extensions of the models to take into account additional degrees of freedom both collective and non-collective, the discovery of new collective modes such as those corresponding to tri-axial shapes, and the possible existence of additional symmetries reported at the meeting, are discussed. Finally the importance is examined of relating the phenomenological models to a more fundamental underlying theory, which has been taken to be the nuclear shell model. (U.K.)

  20. Collecting Taxes Database

    Data.gov (United States)

    US Agency for International Development — The Collecting Taxes Database contains performance and structural indicators about national tax systems. The database contains quantitative revenue performance...

  1. Efficient Immutable Collections

    NARCIS (Netherlands)

    Steindorfer, M.J.

    2017-01-01

    This thesis proposes novel and efficient data structures, suitable for immutable collection libraries, that carefully balance memory footprint and runtime performance of operations, and are aware of constraints and platform co-design challenges on the Java Virtual Machine (JVM). Collection data

  2. Profiling a Periodicals Collection

    Science.gov (United States)

    Bolgiano, Christina E.; King, Mary Kathryn

    1978-01-01

    Libraries need solid information upon which to base collection development decisions. Specific evaluative methods for determining scope, access, and usefullness are described. Approaches used for data collection include analysis of interlibrary loan requests, comparison with major bibliographies, and analysis of accessibility through available…

  3. Preparing collections for digitization

    CERN Document Server

    Bulow, Anna E

    2010-01-01

    Most libraries, archives and museums are confronting the challenges of providing digital access to their collections. This guide offers guidance covering the end-to-end process of digitizing collections, from selecting records for digitization to choosing suppliers and equipment and dealing with documents that present individual problems.

  4. High Collection Nonimaging Optics

    Science.gov (United States)

    Winston, Roland

    1989-07-01

    Nonimaging optics departs from the methods of traditional optical design to develop instead techniques for maximizing the collecting power of concentrating elements and systems. Designs which exceed the concentration attainable with focusing techniques by factors of four or more and approach the theoretical limit are possible (ideal concentrators). The methodology for designing high collection nonirnaging systems is described.

  5. Collective Responsibility for Oppression

    NARCIS (Netherlands)

    Stahl, Titus

    2017-01-01

    Many contemporary forms of oppression are not primarily the result of formally organized collective action nor are they an unintended outcome of a combination of individual actions. This raises the question of collective responsibility. I argue that we can only determine who is responsible for

  6. Bloody Fast Blood Collection

    NARCIS (Netherlands)

    van Brummelen, Samuel Pieter Josephus

    2017-01-01

    This thesis consists of four parts: The first part contains an introduction, the second presents approaches for the evaluation of waiting times at blood collection sites, the third uses these to present approaches that improve waiting times at blood collection sites. The final part shows the

  7. UNO's Afghanistan Collection.

    Science.gov (United States)

    McKernan, M. D.

    This paper explores the background history and sources of the Afghanistan collection at the University Library, University of Nebraska at Omaha (UNO). Credit for the impetus behind the development of the collection is given to Chris Jung, a former UNO geography/geology faculty member; Ronald Roskens, then UNO chancellor; and the Afghanistan…

  8. Instructions for collecting Bamboos

    NARCIS (Netherlands)

    Corner, E.J.H.

    1962-01-01

    Although our knowledge of reproductive parts of bamboos is still very defective, an adequately collected vegetative specimen is valuable and sufficient for identification. Like in tree ferns (see p. 567) and in rattans, a well-collected specimen does not need to be excessively bulky, provided the

  9. Botanical Collections of Brass

    NARCIS (Netherlands)

    Brass, L.J.

    1966-01-01

    Earliest collections, made in southeastern parts of Queensland, were not numbered in sequence, and probably no duplicates were kept. Serious collecting began in 1919, when a start was made in sending specimens to C.T. White at the Queensland Herbarium.

  10. Microalgal Culture Collection Transfers

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Milford Microalgal culture Collection holds over 200 live cultures representing 13 classes of of algae. The cultures are maintained in three different growing...

  11. Third Party Collection Program

    National Research Council Canada - National Science Library

    Young, Shelton

    1993-01-01

    United States Code, title 10, sec. 1095, allows DoD to collect from health insurance plans reasonable inpatient hospital costs incurred on behalf of insured military retirees and military dependants...

  12. Freedom and the Collective

    Directory of Open Access Journals (Sweden)

    Straume, Ingerid S.

    2008-12-01

    Full Text Available Since Isaiah Berlin’s epitomizing Cold War-essay, "Two Concepts of Liberty, " thinkers who emphasize collective concepts of social life have carried the burden of proof against charges of totalitarian tendencies. The background is a ground figure in contemporary political thought that sets notions of collectivity against individual freedom, in a zero sum game: Either one is in favour of the individual, or one is in favour of the collective, and hence, so the bias has it, willing to sacrifice the rights and liberties of individuals. Since it is impossible to favour the latter position and remain liberal, in the wide sense of the term, this dichotomy serves to rob contemporary political thought of both its classical and revolutionary connotations, leaving only individual initiatives like lobbying and voting. Cornelius Castoriadis offers a way around this – arguably false – dichotomy, by regarding individual and collective freedom as two sides of the same coin.

  13. Online Data Collection.

    Science.gov (United States)

    Topp, Neal W.; Pawloski, Bob

    2002-01-01

    Describes the eventful history of online data collection and presents a review of current literature following by a list of pros and cons to be considered when stepping into online surveying. (Contains 14 references.) (Author/YDS)

  14. Long-term collections

    CERN Multimedia

    Collectes à long terme

    2007-01-01

    The Committee of the Long Term Collections (CLT) asks for your attention for the following message from a young Peruvian scientist, following the earthquake which devastated part of her country a month ago.

  15. Turtle Photograph Collection

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Photos collected in marine turtle research programs are diverse, ranging from isolated observations of incidental encounters with turtles on the high-seas to...

  16. Glacier Photograph Collection

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Glacier Photograph Collection is a database of photographs of glaciers from around the world, some dating back to the mid-1850's, that provide an historical...

  17. NOS Hydrographic Surveys Collection

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe...

  18. Shared collections collaborative stewardship

    CERN Document Server

    Hale, Dawn

    2016-01-01

    With practical advice on issues such as governance and business models, demand driven acquisition, rare works, and access, this monograph is a valuable resource for academic library directors, administrators, and collection development leaders.

  19. NLM Digital Collections

    Data.gov (United States)

    U.S. Department of Health & Human Services — The National Library of Medicine's (NLM) Digital Collections offers a search-based Web service that provides access to the Dublin Core metadata and full-text OCR of...

  20. 75 FR 66165 - Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2010-10-27

    ... additional information should be collected to further the aims of government transparency. DATES: Comments... OFFICE OF MANAGEMENT AND BUDGET Information Collection Activities: Proposed Collection; Comment... are warranted. We are particularly interested in comments on whether the information collected in the...

  1. Rehabilitating the Stroke Collection

    Directory of Open Access Journals (Sweden)

    Mary Grimmond

    2006-06-01

    Full Text Available Objective The aim of this project was to complete an analysis of monograph and audiovisual items held in the Central Coast Health Service (CCHS Libraries and containing information relevant to the treatment of acute stroke. Acute stroke is treated by multidisciplinary teams of clinicians based at two hospitals within the CCHS. The adequacy of the library collection was measured by subject coverage and age. Methods The methodology used consisted of three main steps: a literature review; design, administration, and analysis of a questionnaire to members of the CCHS Acute Stroke Team; and an analysis of the libraries’ collections. The research project utilised project management methodology and an evidence based librarianship framework. Results The questionnaire revealed that electronic resources were by far the most frequently used by participants, followed in order by print journals, books, interlibrary loan articles, and audiovisual items. Collection analysis demonstrated that the monograph and audiovisual collections were adequate in both scope and currency to support the information needs of Acute Stroke Team members, with the exception of resources to support patient education. Conclusion The researchers developed recommendations for future collection development in the area of acute stroke resources. Conducting this project within the evidence based librarianship framework helped to develop library staff members’ confidence in their ability to make future collection development decisions, informed by the target group’s information needs and preferences. The collection analysis methodology was designed to be replicated, and new specialist groups within the client base of the library will be targeted to repeat the collection analysis process.

  2. Collective excitations in nuclei

    International Nuclear Information System (INIS)

    Chomaz, Ph.

    1998-01-01

    The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular, the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of this collective motions is a very good tool to understand the properties of the nucleus itself. The purpose of this article is to stress some aspects of these collective vibrations. We have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. Understanding of these phenomena remains one of the important subjects of actuality in the context of quantal systems in strong interaction. In particular, the study of the states with one or two vibration quanta provides a direct information on the structure of nuclei close to their ground states. Moreover, some collective states appear to be very robust against the onset of chaos. This is the case of the hot giant dipole built on top of a hot nucleus which seems to survive up to rather high temperatures. Their sudden disappearance is still a subject of controversy. It may be that the mean-field and the associated collective states are playing a crucial role also in catastrophic processes such as the phase-transitions. Indeed, when the system is diluted the collective vibrations may become unstable and it seems that these unstable modes provide a natural explanation to the self organization of the system in drops. Finally, considering the diversity of the different structures of exotic nuclei one may expect new vibration types. All these studies are showing the diversity of the collective motions of strongly correlated quantum systems such as the nucleus but many open questions remain to be solved. (authors)

  3. Collective excitations in nuclei

    Energy Technology Data Exchange (ETDEWEB)

    Chomaz, Ph. [Grand Accelerateur National d`Ions Lourds (GANIL), 14 - Caen (France); Collaboration: La Direction des Sciences de la Matiere du CEA (FR); Le Fonds National de la Recherche Scientifique de Belgique (BE)

    1998-12-31

    The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular, the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of this collective motions is a very good tool to understand the properties of the nucleus itself. The purpose of this article is to stress some aspects of these collective vibrations. We have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. Understanding of these phenomena remains one of the important subjects of actuality in the context of quantal systems in strong interaction. In particular, the study of the states with one or two vibration quanta provides a direct information on the structure of nuclei close to their ground states. Moreover, some collective states appear to be very robust against the onset of chaos. This is the case of the hot giant dipole built on top of a hot nucleus which seems to survive up to rather high temperatures. Their sudden disappearance is still a subject of controversy. It may be that the mean-field and the associated collective states are playing a crucial role also in catastrophic processes such as the phase-transitions. Indeed, when the system is diluted the collective vibrations may become unstable and it seems that these unstable modes provide a natural explanation to the self organization of the system in drops. Finally, considering the diversity of the different structures of exotic nuclei one may expect new vibration types. All these studies are showing the diversity of the collective motions of strongly correlated quantum systems such as the nucleus but many open questions remain to be solved. (authors) 304 refs., 53 figs., 5 tabs.

  4. Collective field accelerator

    International Nuclear Information System (INIS)

    Luce, J.S.

    1978-01-01

    A collective field accelerator which operates with a vacuum diode and utilizes a grooved cathode and a dielectric anode that operates with a relativistic electron beam with a ν/γ of approx. 1, and a plurality of dielectric lenses having an axial magnetic field thereabout to focus the collectively accelerated electrons and ions which are ejected from the anode. The anode and lenses operate as unoptimized r-f cavities which modulate and focus the beam

  5. Sparse matrix test collections

    Energy Technology Data Exchange (ETDEWEB)

    Duff, I.

    1996-12-31

    This workshop will discuss plans for coordinating and developing sets of test matrices for the comparison and testing of sparse linear algebra software. We will talk of plans for the next release (Release 2) of the Harwell-Boeing Collection and recent work on improving the accessibility of this Collection and others through the World Wide Web. There will only be three talks of about 15 to 20 minutes followed by a discussion from the floor.

  6. A Survey of Collectives

    Science.gov (United States)

    Tumer, Kagan; Wolpert, David

    2004-01-01

    Due to the increasing sophistication and miniaturization of computational components, complex, distributed systems of interacting agents are becoming ubiquitous. Such systems, where each agent aims to optimize its own performance, but where there is a well-defined set of system-level performance criteria, are called collectives. The fundamental problem in analyzing/designing such systems is in determining how the combined actions of self-interested agents leads to 'coordinated' behavior on a iarge scale. Examples of artificial systems which exhibit such behavior include packet routing across a data network, control of an array of communication satellites, coordination of multiple deployables, and dynamic job scheduling across a distributed computer grid. Examples of natural systems include ecosystems, economies, and the organelles within a living cell. No current scientific discipline provides a thorough understanding of the relation between the structure of collectives and how well they meet their overall performance criteria. Although still very young, research on collectives has resulted in successes both in understanding and designing such systems. It is eqected that as it matures and draws upon other disciplines related to collectives, this field will greatly expand the range of computationally addressable tasks. Moreover, in addition to drawing on them, such a fully developed field of collective intelligence may provide insight into already established scientific fields, such as mechanism design, economics, game theory, and population biology. This chapter provides a survey to the emerging science of collectives.

  7. Theory of collective Hamiltonian

    Energy Technology Data Exchange (ETDEWEB)

    Zhang Qingying

    1982-02-01

    Starting from the cranking model, we derive the nuclear collective Hamiltonian. We expand the total energy of the collective motion of the ground state of even--even nuclei in powers of the deformation parameter ..beta... In the first approximation, we only take the lowest-order non-vanished terms in the expansion. The collective Hamiltonian thus obtained rather differs from the A. Bohr's Hamiltonian obtained by the irrotational incompressible liquid drop model. If we neglect the coupling term between ..beta..-and ..gamma..-vibration, our Hamiltonian then has the same form as that of A. Bohr. But there is a difference between these collective parameters. Our collective parameters are determined by the state of motion of the nucleous in the nuclei. They are the microscopic expressions. On the contrary, A. Bohr's collective parameters are only the simple functions of the microscopic physical quantities (such as nuclear radius and surface tension, etc.), and independent of the state of motion of the nucleons in the nuclei. Furthermore, there exist the coupling term between ..beta..-and ..gamma..-vibration and the higher-order terms in our expansion. They can be treated as the perturbations. There are no such terms in A. Bohr's Hamiltonian. These perturbation terms will influence the rotational, vibrational spectra and the ..gamma..-transition process, etc.

  8. The algebraic collective model

    International Nuclear Information System (INIS)

    Rowe, D.J.; Turner, P.S.

    2005-01-01

    A recently proposed computationally tractable version of the Bohr collective model is developed to the extent that we are now justified in describing it as an algebraic collective model. The model has an SU(1,1)xSO(5) algebraic structure and a continuous set of exactly solvable limits. Moreover, it provides bases for mixed symmetry collective model calculations. However, unlike the standard realization of SU(1,1), used for computing beta wave functions and their matrix elements in a spherical basis, the algebraic collective model makes use of an SU(1,1) algebra that generates wave functions appropriate for deformed nuclei with intrinsic quadrupole moments ranging from zero to any large value. A previous paper focused on the SO(5) wave functions, as SO(5) (hyper-)spherical harmonics, and computation of their matrix elements. This paper gives analytical expressions for the beta matrix elements needed in applications of the model and illustrative results to show the remarkable gain in efficiency that is achieved by using such a basis in collective model calculations for deformed nuclei

  9. Life Cycle Collection Management

    Directory of Open Access Journals (Sweden)

    Helen Shenton

    2003-09-01

    Full Text Available Life cycle collection management is a way of taking a long-term approach to the responsible stewardship of the British Library's collections and is one of the Library's strategic strands. It defines the different stages in a collection item's existence over time. These stages range from selection and acquisitions processing, cataloguing and press marking, through to preventive conservation, storage and retrieval. Life cycle collection management seeks to identify the costs of each stage in order to show the economic interdependencies between the phases over time. It thereby aims to demonstrate the long-term consequences of what the library takes into its collections, by making explicit the financial and other implications of decisions made at the beginning of the life cycle for the next 100 plus years. This paper describes the work over the past year at the British Library on this complex and complicated subject. It presents the emerging findings and suggests how it can be used for practical reasons (by individual curators and selectors and for economic, governance and political purposes. The paper describes the next steps in the project, for example, on a predictive data model. The British Library is seeking to benchmark itself against comparable organisations in this area. It intends to work with others on specific comparison for example, of life cycle costing of electronic and paper journals, as a prelude to eliding digital and 'traditional' formats.

  10. Collection for Ecuador

    CERN Multimedia

    Staff Association

    2016-01-01

    After the violent earthquake that caused the death of hundreds of people, and left thousands wounded and homeless in Ecuador, we appeal to your generosity. We are starting a collection today to help the victims, and the funds will be donated to the INEPE Institute in Quito. This organization, known at CERN for many years as it has been supported by the Long Term Collections of the Staff Association, will be responsible for sending the proceeds of the collection directly to the victims in the field. On behalf of the CERN Management and the CERN Staff Association Fabiola Gianotti, Director General, and Alessandro Raimondo, President of the Staff Association =========================== Bank account details for donations: Bank account holder: Staff Association CERN - 1211 GENEVA 23 Account number: 279-HU106832.1 IBAN: CH85 0027 9279 HU10 6832 1 BIC: UBSWCHZH80A Please mention: Ecuador

  11. Curating Virtual Data Collections

    Science.gov (United States)

    Lynnes, Chris; Leon, Amanda; Ramapriyan, Hampapuram; Tsontos, Vardis; Shie, Chung-Lin; Liu, Zhong

    2015-01-01

    NASAs Earth Observing System Data and Information System (EOSDIS) contains a rich set of datasets and related services throughout its many elements. As a result, locating all the EOSDIS data and related resources relevant to particular science theme can be daunting. This is largely because EOSDIS data's organizing principle is affected more by the way they are produced than around the expected end use. Virtual collections oriented around science themes can overcome this by presenting collections of data and related resources that are organized around the user's interest, not around the way the data were produced. Virtual collections consist of annotated web addresses (URLs) that point to data and related resource addresses, thus avoiding the need to copy all of the relevant data to a single place. These URL addresses can be consumed by a variety of clients, ranging from basic URL downloaders (wget, curl) and web browsers to sophisticated data analysis programs such as the Integrated Data Viewer.

  12. Fostering collective intelligence education

    Directory of Open Access Journals (Sweden)

    Jaime Meza

    2016-06-01

    Full Text Available New educational models are necessary to update learning environments to the digitally shared communication and information. Collective intelligence is an emerging field that already has a significant impact in many areas and will have great implications in education, not only from the side of new methodologies but also as a challenge for education. This paper proposes an approach to a collective intelligence model of teaching using Internet to combine two strategies: idea management and real time assessment in the class. A digital tool named Fabricius has been created supporting these two elements to foster the collaboration and engagement of students in the learning process. As a result of the research we propose a list of KPI trying to measure individual and collective performance. We are conscious that this is just a first approach to define which aspects of a class following a course can be qualified and quantified.

  13. Collective Intelligence in Crises

    DEFF Research Database (Denmark)

    Büscher, Monika; Liegl, Michael; Thomas, Vanessa

    2014-01-01

    New practices of social media use in emergency response seem to enable broader `situation awareness' and new forms of crisis management. The scale and speed of innovation in this field engenders disruptive innovation or a reordering of social, political, economic practices of emergency response....... By examining these dynamics with the concept of social collective intelligence, important opportunities and challenges can be examined. In this chapter we focus on socio-technical aspects of social collective intelligence in crises to discuss positive and negative frictions and avenues for innovation...

  14. Collection for Nepal

    CERN Multimedia

    Staff Association

    2015-01-01

    Following the violent earthquake in Nepal and neighbouring countries, a collection of money to help the victims was organized at CERN. A sum of 34 800 CHF was collected, and transferred to the NGO Live to Love. On July 22, the NGO sent a letter to CERN thanking for the support (see below). You can also find more information concerning this NGO and how they use their funds on our website: http://staff-association.web.cern.ch/sites/staff-association.web.cern.ch/files/Docs/Live_to_Love.pdf

  15. Collective nuclear dynamics. Proceedings

    International Nuclear Information System (INIS)

    Ivanyuk, F.A.

    1994-01-01

    The Fourth International school on nuclear physics was help on 29 Aug - 7 Sep, 1994 in Ukraine. The specialists discussed following subjects:liquid drop and the shell correction method; nuclear deformation energy and fission; nuclear structure at high spins, superdeformed states, structure of excited and exotic nuclei; nuclear fluid dynamics and large scale collective motion; order and chaos as they relate to the collective motion; quantum and interference phenomena in nuclear collisions; quasi-fission and multinucleon fragmentation effects; shell effects in non-nuclear systems; new nuclear facilities

  16. Impedance and Collective Effects

    CERN Document Server

    Metral, E; Rumolo, R; Herr, W

    2013-01-01

    This document is part of Subvolume C 'Accelerators and Colliders' of Volume 21 'Elementary Particles' of Landolt-Börnstein - Group I 'Elementary Particles, Nuclei and Atoms'. It contains the Chapter '4 Impedance and Collective Effects' with the content: 4 Impedance and Collective Effects Introduction 4.1 Space Charge 4.2 Wake Fields and Impedances 4.3 Coherent Instabilities 4.4 Landau Damping 4.5 Two-Stream Effects (Electron Cloud and Ions) 4.6 Beam-Beam Effects 4.7 Numerical Modelling

  17. Collective nuclear dynamics. Abstracts

    International Nuclear Information System (INIS)

    Abrosimov, V.I.; Kolomietz, V.M.

    1994-01-01

    The fourth International school on nuclear physics was help on 29 Aug - 7 Sep, 1994 in Ukraine. The specialists discussed following subjects: liquid drop and the shell correction method; nuclear deformation energy and fission; nuclear structure at high spins, superdeformed states, structure of excited and exotic nuclei; nuclear fluid dynamics and large scale collective motion; order and chaos as they relate to the collective motion; quantum and interference phenomena in nuclear collisions; quasi-fission and multinucleon fragmentation effects; shell effects in non-nuclear systems; new nuclear facilities

  18. Husserl on Collective Intentionality

    DEFF Research Database (Denmark)

    Szanto, Thomas

    2016-01-01

    , respectively. On this background, I will concentrate on Husserl’s alternative construal and demonstrate how it entails a robust anti-individualism regarding both the form and the subject of we-intentions. I will suggest that, contrary to appearances, Husserl does not fall prey to committing a content/vehicle...... type of fallacy, by inferring from the jointness of the contents of collective intentionality that there is one joint vehicle or, worse, some collectively conscious bearer of such. Rather, the Husserlian alternative yields a robust formal-cum-subject anti-individualism and undercuts the need...

  19. Collective nuclear dynamics. Proceedings.

    Energy Technology Data Exchange (ETDEWEB)

    Ivanyuk, F A [eds.

    1994-12-31

    The Fourth International school on nuclear physics was help on 29 Aug - 7 Sep, 1994 in Ukraine. The specialists discussed following subjects:liquid drop and the shell correction method; nuclear deformation energy and fission; nuclear structure at high spins, superdeformed states, structure of excited and exotic nuclei; nuclear fluid dynamics and large scale collective motion; order and chaos as they relate to the collective motion; quantum and interference phenomena in nuclear collisions; quasi-fission and multinucleon fragmentation effects; shell effects in non-nuclear systems; new nuclear facilities.

  20. Collective academic supervision

    DEFF Research Database (Denmark)

    Nordentoft, Helle Merete; Thomsen, Rie; Wichmann-Hansen, Gitte

    2013-01-01

    Supervision of students is a core activity in higher education. Previous research on student supervision in higher education focus on individual and relational aspects in the supervisory relationship rather than collective, pedagogical and methodical aspects of the planning of the supervision...... process. This article fills these gaps by discussing potentials and challenges in “Collective Academic Supervision”, a model for supervision at the Master of Education in Guidance at Aarhus University in Denmark. The pedagogical rationale behind the model is that students’ participation and learning...

  1. Long-Term Collections

    CERN Multimedia

    Comité des collectes à long terme

    2011-01-01

    It is the time of the year when our fireman colleagues go around the laboratory for their traditional calendars sale. A part of the money of the sales will be donated in favour of the long-term collections. We hope that you will welcome them warmly.

  2. Collection for SOS animaux

    CERN Multimedia

    2005-01-01

    The Pays de Gex animal shelter is collecting funds. There will be things to buy. You will be able to make a donation and/or become a member of the association or simply get information. SOS Animaux stall (Hall, Build. 60, next to restaurant 1) On Wednesday 23 November 2005 (from 9h - 17h non-stop)

  3. Generating process model collections

    NARCIS (Netherlands)

    Yan, Z.; Dijkman, R.M.; Grefen, P.W.P.J.

    2017-01-01

    Business process management plays an important role in the management of organizations. More and more organizations describe their operations as business processes. It is common for organizations to have collections of thousands of business processes, but for reasons of confidentiality these

  4. Collection for Italy

    CERN Multimedia

    Fabiola Gianotti, Director-General, and Ghislain Roy, President of the Staff Association

    2016-01-01

    Following the earthquake of 24 August in central Italy, many of you have expressed your solidarity. The collection to support the victims raised a total of 10 000 CHF, which was transferred in its entirety to Italy’s civil protection through the Italian delegation to the CERN Council. The CERN Directorate and the CERN Staff Association sincerely thank you for your generosity.

  5. Pollen reference collection digitization

    NARCIS (Netherlands)

    Ercan, F.E.Z.; Donders, T.H.; Bijl, P.K.; Wagner, F.

    2016-01-01

    The extensive Utrecht University pollen reference collection holds thousands of pollen samples of many species and genera from all over the world and has been a basis for the widely-used North West European Pollen Flora. These samples are fixed on glass slides for microscopy use, but the aging

  6. Collective variables and dissipation

    International Nuclear Information System (INIS)

    Balian, R.

    1984-09-01

    This is an introduction to some basic concepts of non-equilibrium statistical mechanics. We emphasize in particular the relevant entropy relative to a given set of collective variables, the meaning of the projection method in the Liouville space, its use to establish the generalized transport equations for these variables, and the interpretation of dissipation in the framework of information theory

  7. Collective Action under Globalization

    DEFF Research Database (Denmark)

    Scheuer, Steen

    Collective action in the form of industrial conflict has declined dramatically since the high tide in the 1970s in Europe. This article argues that this decline is the result of significant changes in both economic and institutional factors, influencing the calculations of employees and of their ...

  8. Developing the Collection Graph

    NARCIS (Netherlands)

    Blanke, Tobias; Bryant, Michael; Speck, Reto

    2015-01-01

    Library Hi Tech, Volume 33, Issue 4, November 2015. Purpose In 2010 the European Holocaust Research Infrastructure (EHRI) was funded to support research into the Holocaust. The project follows on from significant efforts in the past to develop and record the collections of the Holocaust in several

  9. Fully electric waste collection

    CERN Multimedia

    Anaïs Schaeffer

    2015-01-01

    Since 15 June, Transvoirie, which provides waste collection services throughout French-speaking Switzerland, has been using a fully electric lorry for its collections on the CERN site – a first for the region!   Featuring a motor powered by electric batteries that charge up when the brakes are used, the new lorry that roams the CERN site is as green as can be. And it’s not only the motor that’s electric: its waste compactor and lifting mechanism are also electrically powered*, making it the first 100% electric waste collection vehicle in French-speaking Switzerland. Considering that a total of 15.5 tonnes of household waste and paper/cardboard are collected each week from the Meyrin and Prévessin sites, the benefits for the environment are clear. This improvement comes as part of CERN’s contract with Transvoirie, which stipulates that the firm must propose ways of becoming more environmentally friendly (at no extra cost to CERN). *The was...

  10. Collective excitations in nuclei

    International Nuclear Information System (INIS)

    Chomaz, Ph.

    1997-01-01

    The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of these collective motions is a very good to understand the properties of the nucleus itself. The purpose of this article was to stress some aspects of these collective vibrations. In particular we have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. The understanding of these phenomena remains one of the important subjects of actually in the context of quantal systems in strong interaction. In particular the study of the states with one or two vibration quanta provides a direct information on the structure if nuclei close to their ground states. (author)

  11. Collective excitations in nuclei

    Energy Technology Data Exchange (ETDEWEB)

    Chomaz, Ph

    1997-12-31

    The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of these collective motions is a very good to understand the properties of the nucleus itself. The purpose of this article was to stress some aspects of these collective vibrations. In particular we have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. The understanding of these phenomena remains one of the important subjects of actually in the context of quantal systems in strong interaction. In particular the study of the states with one or two vibration quanta provides a direct information on the structure if nuclei close to their ground states. (author) 270 refs.

  12. Innovation and collective entrepreneurship

    DEFF Research Database (Denmark)

    Spear, Roger

    2012-01-01

    different perspectives on innovation and social innovation and the dynamic interaction through collective entrepreneurship in the the social and solidarity economy; bringing out process and outcome dimensions of innovation. And it will develop an understanding of the drivers and barriers to innovation...

  13. The STARLINK software collection

    Science.gov (United States)

    Penny, A. J.; Wallace, P. T.; Sherman, J. C.; Terret, D. L.

    1993-12-01

    A demonstration will be given of some recent Starlink software. STARLINK is: a network of computers used by UK astronomers; a collection of programs for the calibration and analysis of astronomical data; a team of people giving hardware, software and administrative support. The Starlink Project has been in operation since 1980 to provide UK astronomers with interactive image processing and data reduction facilities. There are now Starlink computer systems at 25 UK locations, serving about 1500 registered users. The Starlink software collection now has about 25 major packages covering a wide range of astronomical data reduction and analysis techniques, as well as many smaller programs and utilities. At the core of most of the packages is a common `software environment', which provides many of the functions which applications need and offers standardized methods of structuring and accessing data. The software environment simplifies programming and support, and makes it easy to use different packages for different stages of the data reduction. Users see a consistent style, and can mix applications without hitting problems of differing data formats. The Project group coordinates the writing and distribution of this software collection, which is Unix based. Outside the UK, Starlink is used at a large number of places, which range from installations at major UK telescopes, which are Starlink-compatible and managed like Starlink sites, to individuals who run only small parts of the Starlink software collection.

  14. Sample collection and documentation

    International Nuclear Information System (INIS)

    Cullings, Harry M.; Fujita, Shoichiro; Watanabe, Tadaaki; Yamashita, Tomoaki; Tanaka, Kenichi; Endo, Satoru; Shizuma, Kiyoshi; Hoshi, Masaharu; Hasai, Hiromi

    2005-01-01

    Beginning within a few weeks after the bombings and periodically during the intervening decades, investigators in Hiroshima and Nagasaki have collected samples of materials that were in the cities at the time of the bombings. Although some early efforts were not driven by specific measurement objectives, many others were. Even some of the very earliest samples collected in 1945 were based on carefully conceived research plans and detailed specifications for samples appropriate to particular retrospective measurements, i.e., of particular residual quantities remaining from exposure to the neutrons and gamma rays from the bombs. This chapter focuses mainly on the work of groups at two institutions that have actively collaborated since the 1980s in major collection efforts and have shared samples among themselves and with other investigators: the Radiation Effects Research Foundation (RERF) and its predecessor the Atomic Bomb Casualty Commission (ABCC), and Hiroshima University. In addition, a number of others are listed, who also contributed to the literature by their collection of samples. (J.P.N.)

  15. Tropical Plant Collections

    DEFF Research Database (Denmark)

    Friis, Ib; Balslev, Henrik

    that involved Germany, Britain and France, until independence, which was brightened by exemplary collaboration. Muasya focussed on South Africa, which is the most developed country in sub-Saharan Africa with a well-functioning network of herbaria that covers widely different biota. Sanjappa outlined the history...... crisis. Friis gave a broad overview of the history of herbaria and botanical gardens and the changing conceptual frameworks behind their existence. Baldini talked about early Italian botanical collectors and the fate of their collections. Baas accounted for the Golden Age of Dutch botany during pre......-colonial and early colonial periods. With the presentation by Cribb on the botany of the British Empire we were fully into the colonial period, focussing on the Royal Botanic Gardens at Kew. The situation in North America was treated by Funk, who illustrated the development of collections of tropical plants...

  16. Collective network routing

    Science.gov (United States)

    Hoenicke, Dirk

    2014-12-02

    Disclosed are a unified method and apparatus to classify, route, and process injected data packets into a network so as to belong to a plurality of logical networks, each implementing a specific flow of data on top of a common physical network. The method allows to locally identify collectives of packets for local processing, such as the computation of the sum, difference, maximum, minimum, or other logical operations among the identified packet collective. Packets are injected together with a class-attribute and an opcode attribute. Network routers, employing the described method, use the packet attributes to look-up the class-specific route information from a local route table, which contains the local incoming and outgoing directions as part of the specifically implemented global data flow of the particular virtual network.

  17. Digital collections and exhibits

    CERN Document Server

    Denzer, Juan

    2015-01-01

    Today's libraries are taking advantage of cutting-edge technologies such as flat panel displays using touch, sound, and hands-free motions to design amazing exhibits using everything from simple computer hardware to advanced technologies such as the Microsoft Kinect. Libraries of all types are striving to add new interactive experiences for their patrons through exciting digital exhibits, both online and off. Digital Collections and Exhibits takes away the mystery of designing stunning digital exhibits to spotlight library trea

  18. Ferroelectricity the fundamentals collection

    CERN Document Server

    Jimenez, Basilio

    2008-01-01

    This indispensable collection of seminal papers on ferroelectricity provides an overview over almost a hundred years of basic and applied research. Containing historic contributions from renowned authors, this book presents developments in an area of science that is still rapidly growing. Although primarily aimed at scientists and academics involved in research, this will also be of use to students as well as newcomers to the field.

  19. Learning and knowing collectively

    International Nuclear Information System (INIS)

    Norgaard, Richard B.

    2004-01-01

    Scholars from multiple epistemic communities using a variety of models and approaches are working together to understand climate change, biodiversity loss, and other large-scale phenomena stemming from how people interact with the environment. No single model is adequate, no single mind can grasp the multiple models and their numerous implications. Yet collectively, scientists are putting the parts together and reaching a shared understanding. How is this happening, how can it be done better, and what are the implications for ecological economics?

  20. The generalized collective model

    International Nuclear Information System (INIS)

    Troltenier, D.

    1992-07-01

    In this thesis a new way of proceeding, basing on the method of the finite elements, for the solution of the collective Schroedinger equation in the framework of the Generalized Collective Model was presented. The numerically reachable accuracy was illustrated by the comparison to analytically known solutions by means of numerous examples. Furthermore the potential-energy surfaces of the 182-196 Hg, 242-248 Cm, and 242-246 Pu isotopes were determined by the fitting of the parameters of the Gneuss-Greiner potential to the experimental data. In the Hg isotopes a shape consistency of nearly spherical and oblate deformations is shown, while the Cm and Pu isotopes possess an essentially equal remaining prolate deformation. By means of the pseudo-symplectic model the potential-energy surfaces of 24 Mg, 190 Pt, and 238 U were microscopically calculated. Using a deformation-independent kinetic energy so the collective excitation spectra and the electrical properties (B(E2), B(E4) values, quadrupole moments) of these nuclei were calculated and compared with the experiment. Finally an analytic relation between the (g R -Z/A) value and the quadrupole moment was derived. The study of the experimental data of the 166-170 Er isotopes shows an in the framework of the measurement accuracy a sufficient agreement with this relation. Furthermore it is by this relation possible to determine the effective magnetic dipole moment parameter-freely. (orig./HSI) [de

  1. Work Zone Data Collection Trailer

    Data.gov (United States)

    Federal Laboratory Consortium — The Work Zone Data Collection Trailer was designed and constructed to enhance data collection and analysis capabilities for the "Evaluating Roadway Construction Work...

  2. Collective Intelligence. Chapter 17

    Science.gov (United States)

    Wolpert, David H.

    2003-01-01

    Many systems of self-interested agents have an associated performance criterion that rates the dynamic behavior of the overall system. This chapter presents an introduction to the science of such systems. Formally, collectives are defined as any system having the following two characteristics: First, the system must contain one or more agents each of which we view as trying to maximize an associated private utility; second, the system must have an associated world utility function that rates the possible behaviors of that overall system. In practice, collectives are often very large, distributed, and support little, if any, centralized communication and control, although those characteristics are not part of their formal definition. A naturally occurring example of a collective is a human economy. One can identify the agents and their private utilities as the human individuals in the economy and the associated personal rewards they are each trying to maximize. One could then identify the world utility as the time average of the gross domestic product. ("World utility" per se is not a construction internal to a human economy, but rather something defined from the outside.) To achieve high world utility it is necessary to avoid having the agents work at cross-purposes lest phenomena like liquidity traps or the Tragedy of the Commons (TOC) occur, in which agents' individually pursuing their private utilities lowers world utility. The obvious way to avoid such phenomena is by modifying the agents utility functions to be "aligned" with the world utility. This can be done via punitive legislation. A real-world example of an attempt to do this was the creation of antitrust regulations designed to prevent monopolistic practices.

  3. Collection for Refugiees

    CERN Multimedia

    Staff Association

    2015-01-01

    You are wonderful, thank you! In response to the refugee and migration crisis, we organised a collection in October and November which called on your generosity. We are now pleased to announce that the amount raised is CHF 14'710. These funds will be forwarded to the International Federation of Red Cross and Red Crescent Societies to respond to the humanitarian needs of the refugees and migrants, providing immediate and longer-term relief, including emergency medical care and basic health services, psychological support, temporary shelter, distribution of food & water and other urgently needed items. We thank everyone who contributed to this important cause.

  4. Collection for Philippines

    CERN Multimedia

    Staff Association

    2015-01-01

    Following the devastating Typhoon Haiyan that hit the Philippines in autumn 2013, a collection of funds to help the victims was organised at CERN. An amount of 16 950 CHF had been contributed and was forwarded to Caritas Switzerland. Tuesday 14 July, we received a message from Caritas in order to thank all the contributors for their generosity and to share with you their project’s progress and the results obtained so far. You can find the report on our website: http://staff-association.web.cern.ch/sites/staff-association.web.cern.ch/files/Docs/Rapport_Philippines.pdf

  5. Adsorption and collective paramagnetism

    CERN Document Server

    Selwood, Pierce W

    1962-01-01

    Adsorption and Collective Paramagnetism describes a novel method for studying chemisorption. The method is based on the change in the number of unpaired electrons in the adsorbent as chemisorption occurs. The method is applicable to almost all adsorbates, but it is restricted to ferromagnetic adsorbents such as nickel, which may be obtained in the form of very small particles, that is to say, to ferromagnetic adsorbents with a high specific surface. While almost all the data used illustratively have been published elsewhere this is the first complete review of the subject. The book is addresse

  6. Collection of particles

    International Nuclear Information System (INIS)

    Frew, J.D.

    1979-01-01

    Apparatus and a method for collecting particles formed by vaporisation during a high temperature treatment of steel (eg cutting or welding) are described in which gas is drawn from the area in which the treatment is taking place through a collector in which the particles are separated magnetically. The air may be drawn by an air ejector from a hood around the treatment area. The invention has particular application where the high temperature treatment is the laser cutting of the stainless steel wrapper around a nuclear fuel sub-assembly. (author)

  7. LONG TERM COLLECTIONS

    CERN Multimedia

    2004-01-01

    The Committee would like to thank all those, from near and far, who kindly gave donations to the collection organized at the time of the sudden death of our friend and colleague Stephen O'NEALE The sum of 3,615 francs will be sent to the INEPE Association for the education of children in Quito, Ecuador. We are deeply grateful for this gesture from Steve's family and hope that they find comfort in knowing that Steve's memory will live on through the children whose daily lives will be improved by this gift.

  8. Imagine A Collective Landscape

    Directory of Open Access Journals (Sweden)

    Manuela Silvia Campanini

    2010-03-01

    Full Text Available Iceland plays a key role in the circumpolar context. The research investigates the fields of both the icelandic cultural landscape perception and the icelandic cultural identity. It considers the book Ultima thule; or, a summer in Iceland and Ólafur Elíasson art works as two sides of a same medal: the Iceland on the brain concept (F. Burton. The transition from a cultural identity to a collective landscape identity is investigated analysing Imagine J. Lennon's song which inspired Yõko Ono's work art titled Imagine Peace Tower.

  9. Institutionalized Employer Collective Action

    DEFF Research Database (Denmark)

    Ibsen, Christian Lyhne; Navrbjerg, Steen Erik

    2016-01-01

    Recent studies show that employer associations continue to exist in new ways despite internationalisation of the economy, liberalisation of markets and the decline of trade unions. This paradox raises two questions regarding EOs in today’s labour markets: Which employers join employer associations...... and what kind of services do EOs offer employers? This article explores these questions using two comprehensive surveys on EOs in Denmark – a prominent case of coordinated market economies. The main finding of the analyses is that collective activities vis-à-vis trade unions and government are still...

  10. DataCollection Prototyping

    CERN Multimedia

    Beck, H.P.

    DataCollection is a subsystem of the Trigger, DAQ & DCS project responsible for the movement of event data from the ROS to the High Level Triggers. This includes data from Regions of Interest (RoIs) for Level 2, building complete events for the Event Filter and finally transferring accepted events to Mass Storage. It also handles passing the LVL1 RoI pointers and the allocation of Level 2 processors and load balancing of Event Building. During the last 18 months DataCollection has developed a common architecture for the hardware and software required. This involved a radical redesign integrating ideas from separate parts of earlier TDAQ work. An important milestone for this work, now achieved, has been to demonstrate this subsystem in the so-called Phase 2A Integrated Prototype. This prototype comprises the various TDAQ hardware and software components (ROSs, LVL2, etc.) under the control of the TDAQ Online software. The basic functionality has been demonstrated on small testbeds (~8-10 processing nodes)...

  11. Long-Term Collections

    CERN Multimedia

    Staff Association

    2016-01-01

    45 years helping in developing countries! CERN personnel have been helping the least fortunate people on the planet since 1971. How? With the Long-Term Collections! Dear Colleagues, The Staff Association’s Long-Term Collections (LTC) Committee is delighted to share this important milestone in the life of our Laboratory with you. Indeed, whilst the name of CERN is known worldwide for scientific discoveries, it also shines in the many humanitarian projects which have been supported by the LTC since 1971. Several schools and clinics, far and wide, carry its logo... Over the past 45 years, 74 projects have been supported (9 of which are still ongoing). This all came from a group of colleagues who wanted to share a little of what life offered them here at CERN, in this haven of mutual understanding, peace and security, with those who were less fortunate elsewhere. Thus, the LTC were born... Since then, we have worked as a team to maintain the dream of these visionaries, with the help of regular donat...

  12. Collective ion acceleration

    International Nuclear Information System (INIS)

    Godfrey, B.B.; Faehl, R.J.; Newberger, B.S.; Shanahan, W.R.; Thode, L.E.

    1977-01-01

    Progress achieved in the understanding and development of collective ion acceleration is presented. Extensive analytic and computational studies of slow cyclotron wave growth on an electron beam in a helix amplifier were performed. Research included precise determination of linear coupling between beam and helix, suppression of undesired transients and end effects, and two-dimensional simulations of wave growth in physically realizable systems. Electrostatic well depths produced exceed requirements for the Autoresonant Ion Acceleration feasibility experiment. Acceleration of test ions to modest energies in the troughs of such waves was also demonstrated. Smaller efforts were devoted to alternative acceleration mechanisms. Langmuir wave phase velocity in Converging Guide Acceleration was calculated as a function of the ratio of electron beam current to space-charge limiting current. A new collective acceleration approach, in which cyclotron wave phase velocity is varied by modulation of electron beam voltage, is proposed. Acceleration by traveling Virtual Cathode or Localized Pinch was considered, but appears less promising. In support of this research, fundamental investigations of beam propagation in evacuated waveguides, of nonneutral beam linear eigenmodes, and of beam stability were carried out. Several computer programs were developed or enhanced. Plans for future work are discussed

  13. New futures for old collections

    DEFF Research Database (Denmark)

    Gabriel, Mille

    2016-01-01

    In recognition of altered global relations since colonial times, the Ethnographic Collections at the National Museum of Denmark have identified a need to redefine their role in society. The Ethnographic Collections explore new ways of activating old collections – ways, which include contemporary...... collecting, co-curation and dialogue with the communities from where the collections derive. Through three recent projects, this paper revolves around questions such as: How can we make associations between the old collections and contemporary society? How do we prioritize, when collecting the contemporary...

  14. Markets for Collective Concerns

    DEFF Research Database (Denmark)

    Frankel, Christian; Ossandón, José; Pallesen, Trine

    Despite the recent fall-out of finance, confidence in the market does not seem to be diminishing, but, on the contrary, market mechanisms are becoming key instruments to deal with core contemporary collective concerns, including global warming, education, environmental pollution, supply of energy......, quality of education, poverty and health care (Mirowski 2013). Recent research within STS has started to focus on such kind of arrangements and in this presentation we will critically engage with this literature. Our main results are twofold. On the one hand, we recognize there are important conceptual...... tools already available - such as 'matters of public concern' (Marres 2007) and 'hybrid forums' (Callon et al. 2001; Callon 2009)- that help in framing the particularity of these arrangements. On the other hand, previous STS-market research notions developed mostly in the field of finance studies cannot...

  15. Fission products collecting devices

    International Nuclear Information System (INIS)

    Matsumoto, Hiroshi

    1979-01-01

    Purpose: To enable fission products trap with no contamination to coolants and cover gas by the provision of a fission products trap above the upper part of a nuclear power plant. Constitution: Upon fuel failures in a reactor core, nuclear fission products leak into coolants and move along the flow of the coolants to the coolants above the reactor core. The fission products are collected in a trap container and guided along a pipeline into fission products detector. The fission products detector monitors the concentration of the fission products and opens the downstream valve of the detector when a predetermined concentration of the fission products is detected to introduce the fission products into a waste gas processing device and release them through the exhaust pipe. (Seki, T.)

  16. JINR Rapid Communications. Collection

    International Nuclear Information System (INIS)

    1994-01-01

    The present collection of rapid communications from JINR, Dubna, contains nine separate reports on quasi-classical description of one-nucleon transfer reactions with heavy ions, elastic and inelastic scattering in the high energy approximation, experimental study of fission and evaporation cross sections for 6 He + 209 Bi reaction, d ↑ + 12 C → p + X at Θ p = 0 o in the region of high internal momenta in the deuteron, the Nuclotron internal targets, actively screened superconducting magnets, using of polarized target in backward elastic dp scattering, application of transputers in the data acquisition system of the INESS-ALPHA spectrometer, narrow dibaryon resonances with isotopic spin I=2. 93 refs., 27 figs., 4 tabs

  17. JINR Rapid Communications. Collection

    International Nuclear Information System (INIS)

    1994-01-01

    The present collection of rapid communications from JINR, Dubna, contains eight separate reports on Lorentz transformations with superluminal velocities, photo chromic effect in HTSC films, the investigation of hypernuclei in the Nuclotron accelerator, a new hadron jets finding algorithm in the four-dimensional velocity space, investigations of neutral particle production by relativistic nuclei on the LHE 90-channel γ-spectrometer (results and perspectives), coherent meson production in the dp → 3 HeX reaction, the relativistic projectile nuclei fragmentation and A-dependence of nucleon Fermi-momenta, energy spectra of γ-quanta from d-propane interactions at momentum P d = 1.25 GeV/c per nucleon. 86 refs., 26 figs., 4 tabs

  18. Collective symplectic integrators

    International Nuclear Information System (INIS)

    McLachlan, Robert I; Modin, Klas; Verdier, Olivier

    2014-01-01

    We construct symplectic integrators for Lie–Poisson systems. The integrators are standard symplectic (partitioned) Runge–Kutta methods. Their phase space is a symplectic vector space equipped with a Hamiltonian action with momentum map J whose range is the target Lie–Poisson manifold, and their Hamiltonian is collective, that is, it is the target Hamiltonian pulled back by J. The method yields, for example, a symplectic midpoint rule expressed in 4 variables for arbitrary Hamiltonians on so(3) ∗ . The method specializes in the case that a sufficiently large symmetry group acts on the fibres of J, and generalizes to the case that the vector space carries a bifoliation. Examples involving many classical groups are presented. (paper)

  19. Collective biogas plants

    International Nuclear Information System (INIS)

    1992-01-01

    Papers contributed to the European seminar on collective biogas plants held at Herning, Denmark on October 22-23 under the auspices of the Commission of the European Communities, Directorate-General for Energy (DG XVII) are presented. Within the framework of the THERMIE programme, a network of OPETs (Organizations for the Promotion of Energy Technologies) was set up in order to disseminate information on new energy technologies throughout the European communities. The potential for further implementation of centralized capacity for the conversion of animal manures and other organic wastes to bio-fuels, not only in central and eastern Europe but also in the developing countries, is discussed in addition to the relevant technologies. Actual biomass conversion plants are described and details are given on operational experience and plant management. Agricultural, economic and policy aspects are also dealt with. (AB)

  20. Chaos in collective nuclei

    International Nuclear Information System (INIS)

    Whelan, N.D.

    1993-01-01

    Random Matrix Theory successfully describes the statistics of the low-lying spectra of some nuclei but not of others. It is currently believed that this theory applies to systems in which the corresponding classical motion is chaotic. This conjecture is tested for collective nuclei by studying the Interacting Boson Model. Quantum and classical measures of chaos are proposed and found to be in agreement throughout the parameter space of the model. For some parameter values the measures indicate the presence of a previously unknown approximate symmetry. A phenomenon called partial dynamical symmetry is explored and shown to lead to a suppression of chaos. A time dependent function calculated from the quantum spectrum is discussed. This function is sensitive to the extent of chaos and provides a robust method of analyzing experimental spectra

  1. 78 FR 48135 - Agency Information Collection Activities: Proposed Collection;

    Science.gov (United States)

    2013-08-07

    .... ADDRESSES: Comments should be sent to Richard Lucas, Office of Policy Support, Food and Nutrition Service, U... DEPARTMENT OF AGRICULTURE Food and Nutrition Service Agency Information Collection Activities: Proposed Collection; Comment Request--Enhancing Completion Rates for Supplemental Nutrition Assistance...

  2. 76 FR 72446 - Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2011-11-23

    ... recipient cash management policies and procedures identified issues concerning the methods that recipients... OFFICE OF MANAGEMENT AND BUDGET Information Collection Activities: Proposed Collection; Comment Request AGENCY: Office of Federal Financial Management, Office of Management and Budget. ACTION: Notice...

  3. Utilization of tall goldenrod by the tarnished plant bug (Hemiptera: Miridae) in the production of overwintering adults and as a possible winter food source

    Science.gov (United States)

    Tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), nymphs and adults were collected from tall goldenrod, Solidago canadensis L. var. scabra Torr. and Gray, in Washington County, MS during October and November 2008 and 2009. Adults were dissected to determine their reproductive status in o...

  4. Collection for Ecuador

    CERN Multimedia

    Staff Association

    2016-01-01

    Following the terrible earthquake in Ecuador on April 16th, 2016, a collection was organized at CERN and sent to the INEPE Institute in Quito to help the victims. CERN has received the following two letters that we want to share with you. We wish our Ecuadorian friends a prompt recovery and keep them in our thoughts! Dear Fabiola and Alessandro, […] As the CERN contact person in Ecuador, and as the Country Representative for Ecuador in the CMS Experiment, I would like to thank you, the offices you precede and, through you, the whole CERN community, for all the concern and generosity after the terrible earthquake in the coast of Ecuador.  Rather slowly, but full of hope, our people are overcoming this difficult situation.  Contributions from different sources abroad, like CERN's, combined with the rapid and generous local intervention, have greatly helped the affected communities cope with the most urgent needs in order to restart their lives. Once again, I express my ...

  5. Long-Term Collection

    CERN Multimedia

    Staff Association

    2016-01-01

    Dear Colleagues, As previously announced in Echo (No. 254), your delegates took action to draw attention to the projects of the Long-Term Collections (LTC), the humanitarian body of the CERN Staff Association. On Tuesday, 11 October, at noon, small Z-Cards were widely distributed at the entrances of CERN restaurants and we thank you all for your interest. We hope to have achieved an important part of our goal, which was to inform you, convince you and find new supporters among you. We will find out in the next few days! An exhibition of the LTC was also set up in the Main Building for the entire week. The Staff Association wants to celebrate the occasion of the Long-Term Collection’s 45th anniversary at CERN because, ever since 1971, CERN personnel have showed great support in helping the least fortunate people on the planet in a variety of ways according to their needs. On a regular basis, joint fundraising appeals are made with the Directorate to help the victims of natural disasters around th...

  6. Collectes à long terme

    CERN Multimedia

    Collectes à long terme

    2014-01-01

    En cette fin d’année 2014 qui approche à grands pas, le Comité des Collectes à Long Terme remercie chaleureusement ses fidèles donatrices et donateurs réguliers pour leurs contributions à nos actions en faveur des plus démunis de notre planète. C’est très important, pour notre Comité, de pouvoir compter sur l’appui assidu que vous nous apportez. Depuis plus de 40 ans maintenant, le modèle des CLT est basé principalement sur des actions à long terme (soit une aide pendant 4-5 ans par projet, mais plus parfois selon les circonstances), et sa planification demande une grande régularité de ses soutiens financiers. Grand MERCI à vous ! D’autres dons nous parviennent au cours de l’année, et ils sont aussi les bienvenus. En particulier, nous tenons à remercier...

  7. Peripheral blood collection

    DEFF Research Database (Denmark)

    Franken, Carmen; Remy, Sylvie; Lambrechts, Nathalie

    2016-01-01

    A crucial challenge for gene expression analysis in human biomonitoring studies on whole blood samples is rapid sample handling and mRNA stabilization. This study was designed to evaluate the impact of short bench times (less than 30 min) on yield, quality and gene expression of mRNA in the prese......A crucial challenge for gene expression analysis in human biomonitoring studies on whole blood samples is rapid sample handling and mRNA stabilization. This study was designed to evaluate the impact of short bench times (less than 30 min) on yield, quality and gene expression of m......RNA in the presence of different stabilization buffers (TempusTM Blood RNA tube and RNAlater® Stabilization Reagent). Microarray analyzes showed significant changes over short periods of time in expression of a considerate part of the transcriptome (2356 genes) with a prominent role for NFкB-, cancer......- and glucocorticoid-mediated networks, and specifically interleukin-8 (IL-8). These findings suggest that even short bench times affect gene expression, requiring to carry out blood collection in a strictly standardized way. © 2016 Informa UK Limited, trading as Taylor & Francis Group....

  8. Collective focusing ion accelerator

    International Nuclear Information System (INIS)

    Goldin, F.J.

    1986-01-01

    The principal subject of this dissertation is the trapping confinement of pure electron plasmas in bumpy toroidal magnetic fields, with particular attention given to the trapping procedure and the behavior of the plasma during the final equilibrium. The most important aspects of the equilibrium studied were the qualitative nature of the plasma configuration and motion and its density, distribution and stability. The motivation for this study was that an unneutralized cloud of electrons contained in a toroidal system, sufficiently dense and stable, may serve to electrostatically focus ions (against centrifugal and self space charge forces) in a cyclic ion accelerator. Such an accelerator, known as a Collective Focusing Ion Accelerator (CFIA) could be far smaller than conventional designs (which use external magnetic fields directly to focus the ions) due to the smaller gyro-radium of an electron in a magnetic field of given strength. The electron cloud generally drifted poloidally at a finite radius from the toroidal minor axis. As this would preclude focusing ions with such clouds, damping this motion was investigated. Finite resistance in the normally perfectly conductive vessel wall did this. In further preparation for a working CFIA, additional experiments studied the effect of ions on the stability of the electron cloud

  9. Collective spatial keyword querying

    DEFF Research Database (Denmark)

    Cao, Xin; Cong, Gao; Jensen, Christian S.

    2011-01-01

    With the proliferation of geo-positioning and geo-tagging, spatial web objects that possess both a geographical location and a textual description are gaining in prevalence, and spatial keyword queries that exploit both location and textual description are gaining in prominence. However, the quer......With the proliferation of geo-positioning and geo-tagging, spatial web objects that possess both a geographical location and a textual description are gaining in prevalence, and spatial keyword queries that exploit both location and textual description are gaining in prominence. However......, the queries studied so far generally focus on finding individual objects that each satisfy a query rather than finding groups of objects where the objects in a group collectively satisfy a query. We define the problem of retrieving a group of spatial web objects such that the group's keywords cover the query......'s keywords and such that objects are nearest to the query location and have the lowest inter-object distances. Specifically, we study two variants of this problem, both of which are NP-complete. We devise exact solutions as well as approximate solutions with provable approximation bounds to the problems. We...

  10. LONG TERM COLLECTIONS

    CERN Multimedia

    STAFF ASSOCIATION

    2010-01-01

    ACKNOWLEDGMENTS The Long-Term Collections (CLT) committee would like to warmly thank its faithful donors who, year after year, support our actions all over the world. Without you, all this would not be possible. We would like to thank, in particular, the CERN Firemen’s Association who donated 5000 CHF in the spring thanks to the sale of their traditional calendar, and the generosity of the CERN community. A huge thank you to the firemen for their devotion to our cause. And thank you to all those who have opened their door, their heart, and their purses! Similarly, we warmly thank the CERN Yoga Club once again for its wonderful donation of 2000 CHF we recently received. We would also like to tell you that all our projects are running well. Just to remind you, we are currently supporting the activities of the «Réflexe-Partage» Association in Mali; the training centre of «Education et Développement» in Abomey, Benin; and the orphanage and ...

  11. Disposable Collection Kit for Rapid and Reliable Collection of Saliva

    OpenAIRE

    Yamaguchi, Masaki; Tezuka, Yuki; Takeda, Kazunori; Shetty, Vivek

    2015-01-01

    Objectives To describe and evaluate disposable saliva collection kit for rapid, reliable, and reproducible collection of saliva samples. Methods The saliva collection kit comprised of a saliva absorbent swab and an extractor unit was used to retrieve whole saliva samples from 10 subjects. The accuracy and precision of the extracted volumes (3, 10, and 30 ?l) were compared to similar volumes drawn from control samples obtained by passive drool. Additionally, the impact of kit collection method...

  12. Gesammelte Werke / Collected Works

    Science.gov (United States)

    Schwarzschild, Karl; Voigt, Hans-Heinrich

    Der bekannte Astronom Karl Schwarzschild (1873-1916) gilt als der Begründer der Astrophysik und als hervorragender Forscher mit einer erstaunlichen Bandbreite seiner Interessen. Arbeiten zur Himmelsmechanik, Elektrodynamik und Relativitätstheorie weisen ihn als vorzüglichen Mathematiker und Physiker auf der Höhe seiner Zeit aus. Untersuchungen zur Photographischen Photometrie, Optik und Spektroskopie zeigen den versierten Beobachter, der sein Meßinstrumentarium beherrscht, und schließlich arbeitete Schwarzschild als Astrophysiker an Sternatmosphären, Kometen, Struktur und Dynamik von Sternsystemen. Die in seinem kurzen Leben entstandene Fülle an wissenschaftlichen Arbeiten ist in drei Bänden der Gesamtausgabe gesammelt, ergänzt durch biographisches Material, Annotationen von Fachleuten und einen Essay des Nobelpreisträgers S. Chandrasekhar. The well-known astronomer Karl Schwarzschild (1873-1916) is regarded as the founder of astrophysics and as an exceptionally talented researcher whose interests spanned a remarkably broad spectrum. His work on celestial mechanics, electrodynamics, and relativity theory demonstrates his great abilities as a mathematician and physicist who significantly influenced the science of his times. His investigations of photographic photometry, optics, and spectroscopy display his strengths as an observer who knew his instruments. But above all Schwarzschild pursued questions of astrophysics, addressing in particular stellar atmospheres, comets, and the structure and dynamics of stellar systems. The host of scientific works that he authored in his short life is now collected in the form of this three-volume complete works; it is supplemented by biographical material, notes from some of todays experts, and an essay by the Nobel Laureate S. Chandrasekhar.

  13. Collect method of uranium hexafluoride

    International Nuclear Information System (INIS)

    Moura, S.C.; Bustillos, O.W.V.

    1991-01-01

    A collect method of uranium hexafluoride was designed, constructed and assembled in Analytical Laboratory from Instituto de Energia Atomica, Sao Paulo, Brazil. This method of collect is main for quality control of uranium hexafluoride. (author)

  14. Earthworm Collections of the World

    OpenAIRE

    Sherlock, Emma; Livermore, Laurence; Scott, Ben

    2013-01-01

    A poster presenting "Earthworm Collections of the World" This site provides a central hub for researchers and students to locate earthworm collections and specimens, along with useful information on the various earthworm families and species.

  15. Travel time data collection handbook

    Science.gov (United States)

    1998-03-01

    This Travel Time Data Collection Handbook provides guidance to transportation : professionals and practitioners for the collection, reduction, and presentation : of travel time data. The handbook should be a useful reference for designing : travel ti...

  16. Collective inertia in paired systems

    International Nuclear Information System (INIS)

    Arve, P.O.; Bertsch, G.F.; Michigan State Univ., East Lansing

    1988-01-01

    Two definitions of the collective inertia are examined. One of them was recently proposed and applied in a calculation of exotic radioactivity. The other expression is the Inglis cranking formula. It is shown that the new formula corresponds to rapid collective motion while the cranking corresponds to slow collective motion. It is also seen that the two forms of the inertia differ only in the choice of the collective momentum. (orig.)

  17. Collection assessment and acquisitions budgets

    CERN Document Server

    Lee, Sul H

    2013-01-01

    This invaluable new book contains timely information about the assessment of academic library collections and the relationship of collection assessment to acquisition budgets. The rising cost of information significantly influences academic libraries'abilities to acquire the necessary materials for students and faculty, and public libraries'abilities to acquire material for their clientele. Collection Assessment and Acquisitions Budgets examines different aspects of the relationship between the assessment of academic library collections and the management of library acquisition budgets. Librar

  18. Managing University Research Microdata Collections

    Science.gov (United States)

    Woolfrey, Lynn; Fry, Jane

    2015-01-01

    This article examines the management of microdata collections in a university context. It is a cross-country analysis: Collection management at data services in Canada and South Africa are considered. The case studies are of two university sub-contexts: One collection is located in a library; the other at a Faculty-based Data Service. Stages in…

  19. Microscopic collective models of nuclei

    International Nuclear Information System (INIS)

    Lovas, Rezsoe

    1985-01-01

    Microscopic Rosensteel-Rowe theory of the nuclear collective motion is described. The theoretical insufficiency of the usual microscopic establishment of the collective model is pointed. The new model treating exactly the degrees of freedom separates the coordinates describing the collective motion and the internal coordinates by a consistent way. Group theoretical methods analyzing the symmetry properties of the total Hamiltonian are used defining the collective subspaces transforming as irreducible representations of the group formed by the collective operators. Recent calculations show that although the results of the usual collective model are approximately correct and similar to those of the new microscopic collective model, the underlying philosophy of the old model is essentially erroneous. (D.Gy.)

  20. 77 FR 6573 - Agency Information Collection Activities: Proposed Collection; Comment Request; Collection of...

    Science.gov (United States)

    2012-02-08

    ... qualitative customer and stakeholder feedback in an efficient, timely manner, in accordance with the... Collection Activities: Proposed Collection; Comment Request; Collection of Qualitative Feedback Through Focus... part of a Federal Government-wide effort to streamline the process to seek feedback from the public on...

  1. Managing Documentary Collections Through Digitization

    OpenAIRE

    Deegan, Marylin

    2001-01-01

    Digital collection development is part of a broader perspective on collection development, and generally needs to be assessed using the same criteria. However, there is a difference between reviewing collections already held by the institution with digitization in mind, and choosing to acquire digital materials from elsewhere. In-house holdings have been initially acquired or retained because they are perceived to have some value to the community served by the library, and therefore theoretic...

  2. Increasing Access to Special Collections

    Directory of Open Access Journals (Sweden)

    Ricky Erway

    2012-01-01

    Full Text Available In an environment where we increasingly have access to a collective collection of digitized books, special collections will become increasingly invisible if they are not accessible online. In an era of increasing expectations and decreasing budgets, finding ways to streamline some of our processes is the best way to enable us to do more with less. This report details a number of investigations into how access to special collections can be increased. It includes guidance running the gamut from digitization and rights management to policies and procedures.

  3. Tritium monitor and collection system

    Science.gov (United States)

    Bourne, G.L.; Meikrantz, D.H.; Ely, W.E.; Tuggle, D.G.; Grafwallner, E.G.; Wickham, K.L.; Maltrud, H.R.; Baker, J.D.

    1992-01-14

    This system measures tritium on-line and collects tritium from a flowing inert gas stream. It separates the tritium from other non-hydrogen isotope contaminating gases, whether radioactive or not. The collecting portion of the system is constructed of various zirconium alloys called getters. These alloys adsorb tritium in any of its forms at one temperature and at a higher temperature release it as a gas. The system consists of four on-line getters and heaters, two ion chamber detectors, two collection getters, and two guard getters. When the incoming gas stream is valved through the on-line getters, 99.9% of it is adsorbed and the remainder continues to the guard getter where traces of tritium not collected earlier are adsorbed. The inert gas stream then exits the system to the decay chamber. Once the on-line getter has collected tritium for a predetermined time, it is valved off and the next on-line getter is valved on. Simultaneously, the first getter is heated and a pure helium purge is employed to carry the tritium from the getter. The tritium loaded gas stream is then routed through an ion chamber which measures the tritium activity. The ion chamber effluent passes through a collection getter that readsorbs the tritium and is removable from the system once it is loaded and is then replaced with a clean getter. Prior to removal of the collection getter, the system switches to a parallel collection getter. The effluent from the collection getter passes through a guard getter to remove traces of tritium prior to exiting the system. The tritium loaded collection getter, once removed, is analyzed by liquid scintillation techniques. The entire sequence is under computer control except for the removal and analysis of the collection getter. 7 figs.

  4. The Fate of Anatomical Collections

    NARCIS (Netherlands)

    Knoeff, Rina; Zwijnenberg, Robert

    Almost every medical faculty possesses anatomical and/or pathological collections: human and animal preparations, wax- and other models, as well as drawings, photographs, documents and archives relating to them. In many institutions these collections are well-preserved, but in others they are poorly

  5. Fundamentals of Managing Reference Collections

    Science.gov (United States)

    Singer, Carol A.

    2012-01-01

    Whether a library's reference collection is large or small, it needs constant attention. Singer's book offers information and insight on best practices for reference collection management, no matter the size, and shows why managing without a plan is a recipe for clutter and confusion. In this very practical guide, reference librarians will learn:…

  6. Rethinking collection development and management

    CERN Document Server

    Albitz, Rebecca; Zabel, Diane

    2014-01-01

    This collection of thought-provoking essays by visionary and innovative library practitioners covers theory, research, and best practices in collection development, examining how it has evolved, identifying how some librarians are creatively responding to these changes, and predicting what is coming next.

  7. Collective Bargaining: An Educational Technology.

    Science.gov (United States)

    O'Brien, Gavin W.

    Collective bargaining is a technology and not a philosophy or set of moral values. There seems to be an almost irresistible urge among authors of educational bargaining statutes to adopt the basic tenets of private-sector labor law. However, employment and collective bargaining are different in the public sector than in the private sector, and one…

  8. Collective action and its interpreters

    Directory of Open Access Journals (Sweden)

    João Alfredo Costa de Campos Melo Júnior

    2007-12-01

    Full Text Available This article intention is to give the theorical and intellectual map production regarding collective actions. For such, we will analyze the propositions of five thinkers who have work for the better understanding of this question. We will discuss the contributions of the Chicago School, especially psic-sociology, and Herbert Blumer symbolic interactionism; the classical Marxists approaches on collective actions; Claus Offe and the Marxist point of view on the new models of collective actions; Charles Tilly and his social-historic perspective analysis about social movements; and finally Mancur Olson and collective action from a rational perspective. What we intend is to present comparatively the theorical and practical similarities and exclusions of these contemporary authors who contribute with collective actions today.

  9. Collective Analysis of Qualitative Data

    DEFF Research Database (Denmark)

    Simonsen, Jesper; Friberg, Karin

    2014-01-01

    What. Many students and practitioners do not know how to systematically process qualitative data once it is gathered—at least not as a collective effort. This chapter presents two workshop techniques, affinity diagramming and diagnostic mapping, that support collective analysis of large amounts...... of qualitative data. Affinity diagramming is used to make collective analysis and interpretations of qualitative data to identify core problems that need to be addressed in the design process. Diagnostic mapping supports collective interpretation and description of these problems and how to intervene in them. We....... In particular, collective analysis can be used to identify, understand, and act on complex design problems that emerge, for example, after the introduction of new tech- nologies. Such problems might be hard to clarify, and the basis for the analysis often involves large amounts of unstructured qualitative data...

  10. In defence of collective dose

    International Nuclear Information System (INIS)

    Fairlie, I.; Sumner, D.

    2000-01-01

    Recent proposals for a new scheme of radiation protection leave little room for collective dose estimations. This article discusses the history and present use of collective doses for occupational, ALARA, EIS and other purposes with reference to practical industry papers and government reports. The linear no-threshold (LNT) hypothesis suggests that collective doses which consist of very small doses added together should be used. Moral and ethical questions are discussed, particularly the emphasis on individual doses to the exclusion of societal risks, uncertainty over effects into the distant future and hesitation over calculating collective detriments. It is concluded that for moral, practical and legal reasons, collective dose is a valid parameter which should continue to be used. (author)

  11. Collective network for computer structures

    Science.gov (United States)

    Blumrich, Matthias A [Ridgefield, CT; Coteus, Paul W [Yorktown Heights, NY; Chen, Dong [Croton On Hudson, NY; Gara, Alan [Mount Kisco, NY; Giampapa, Mark E [Irvington, NY; Heidelberger, Philip [Cortlandt Manor, NY; Hoenicke, Dirk [Ossining, NY; Takken, Todd E [Brewster, NY; Steinmacher-Burow, Burkhard D [Wernau, DE; Vranas, Pavlos M [Bedford Hills, NY

    2011-08-16

    A system and method for enabling high-speed, low-latency global collective communications among interconnected processing nodes. The global collective network optimally enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices ate included that interconnect the nodes of the network via links to facilitate performance of low-latency global processing operations at nodes of the virtual network and class structures. The global collective network may be configured to provide global barrier and interrupt functionality in asynchronous or synchronized manner. When implemented in a massively-parallel supercomputing structure, the global collective network is physically and logically partitionable according to needs of a processing algorithm.

  12. Disposable collection kit for rapid and reliable collection of saliva.

    Science.gov (United States)

    Yamaguchi, Masaki; Tezuka, Yuki; Takeda, Kazunori; Shetty, Vivek

    2015-01-01

    To describe and evaluate disposable saliva collection kit for rapid, reliable, and reproducible collection of saliva samples. The saliva collection kit comprised of a saliva absorbent swab and an extractor unit was used to retrieve whole saliva samples from 10 subjects. The accuracy and precision of the extracted volumes (3, 10, and 30 μl) were compared to similar volumes drawn from control samples obtained by passive drool. Additionally, the impact of kit collection method on subsequent immunoassay results was verified by assessing salivary cortisol levels in the samples and comparing them to controls. The recovered volumes for the whole saliva samples were 3.85 ± 0.28, 10.79 ± 0.95, and 31.18 ± 1.72 μl, respectively (CV = 8.76%) and 2.91 ± 0.19, 9.75 ± 0.43, and 29.64 ± 0.91 μl, respectively, (CV = 6.36%) for the controls. There was a close correspondence between the salivary cortisol levels from the saliva samples obtained by the collection kit and the controls (R(2)  > 0.96). The disposable saliva collection kit allows accurate and repeatable collection of fixed amounts of whole saliva and does not interfere with subsequent measurements of salivary cortisol. The simple collection process, lack of elaborate specimen recovery steps, and the short turnaround time (<3 min) should render the kit attractive to test subjects and researchers alike. © 2015 Wiley Periodicals, Inc.

  13. A digital local studies collection

    Directory of Open Access Journals (Sweden)

    Simona Resman

    2005-01-01

    Full Text Available Local studies and local studies departments reflect the entire spectrum of knowledge within the local community. Transition to the new digital environment means just continuing the basic functions of local studies collections: acquisition, cataloguing and preservation of materials in different formats on different media. The background of each digital library is the technical architecture of system that enables interaction between the user and the library, saving digital material and building a platform for searching and indexing digital objects. Using advanced ICT requests from librarians, designers of digital local studies collections a reflection about traditional roles. A digital local studies collection with new technology enlarges local boarders, local contents become more and more interesting for a wider sphere of people. In collecting of local materials a collaboration with archives and museums, with academic community, with community groups and with individuals comes in forefront. Digital local studies collections with their contents support local diversity, lifelong learning and social inclusion. The crucial elements of a digital local studies collection are attractive local contents with fast and simple access from one place – a portal. In the digital age public libraries become managers of knowledge also by establishing digital local studies collections.

  14. Crash course in collection development

    CERN Document Server

    Disher, Wayne

    2014-01-01

    This professional volume covers all aspects of collection development and management in the public library, from gathering statistics to design a collection that meets community needs, to selecting materials, managing vendor relations, understanding the publishing industry, and handling complaints. Author Wayne Disher provides public librarians-especially those without the benefit of academic training-access to the tools to make them successful, and their collections beneficial to the public they serve. The second edition features two new chapters on digital curation and cooperative colle

  15. The Neurobiology of Collective Action

    Directory of Open Access Journals (Sweden)

    Paul Joseph Zak

    2013-11-01

    Full Text Available This essay introduces a neurologically-informed mathematical model of collective action that reveals the role for empathy and distress in motivating costly helping behaviors. We report three direct tests of model with a key focus on the neuropeptide oxytocin as well as a variety of indirect tests. These studies, from our lab and other researchers, show support for the model. Our findings indicate that empathic concern, via the brain's release of oxytocin, is a trigger for collective action. We discuss the implications from this model for our understanding why human beings engage in costly collective action.

  16. The ecology of collective behavior.

    Directory of Open Access Journals (Sweden)

    Deborah M Gordon

    2014-03-01

    Full Text Available Similar patterns of interaction, such as network motifs and feedback loops, are used in many natural collective processes, probably because they have evolved independently under similar pressures. Here I consider how three environmental constraints may shape the evolution of collective behavior: the patchiness of resources, the operating costs of maintaining the interaction network that produces collective behavior, and the threat of rupture of the network. The ants are a large and successful taxon that have evolved in very diverse environments. Examples from ants provide a starting point for examining more generally the fit between the particular pattern of interaction that regulates activity, and the environment in which it functions.

  17. Collection development past and future

    CERN Document Server

    Pastine, Maureen

    2013-01-01

    With the prolific changes in the electronic environment, do you sometimes feel overwhelmed by the multiplying of electronic information resources, the different methods of access, and their combined impact on collection development? If so, Collection Development is the book to help you get a handle on what's out there! In no time at all, you'll be able to select and integrate electronic resources into collection development programs at even the most traditional of libraries! In the process, you will learn alternative approaches for dealing with electronic databases, on-line access, and fiscal

  18. The temporary international collective chronicle

    International Nuclear Information System (INIS)

    Kravchenko, Yu.Ya.

    2007-01-01

    The temporary international collective brief history is presented from the time of its establishment in 1972 (and even earlier) till the termination of its activity in 1990 (and even later). Works in the temporary international collective framework demonstrate an example of successful cooperation of specialists from different countries in the field of calculation-theoretical and experimental research on the WWER reactor physics. The results of experimental and calculation studies were reported to the topical meetings, workshops, conferences, and symposia as well as were published in the temporary international collective reports and proceedings. The answers to the questions about the temporary international collective activity-What? Where? When?-are presented in this chronicle (Authors)

  19. EPA Linked Open Data (Collection)

    Data.gov (United States)

    U.S. Environmental Protection Agency — This is a collection item referencing the following EPA Linked Data resources: - EPA Facility Registry Service (FRS) - EPA Substance Registry Service (SRS) -...

  20. Temperate and Tropical Plant Collections

    DEFF Research Database (Denmark)

    Friis, Ib

    2015-01-01

    The first botanical gardens and collections of preserved plants in the 16th century served didactic purposes and should ensure correct identification of medicinal, ornamental and other useful plants. Collections of preserved plants were nearly all book-herbaria, emulating illustrated books...... and owned by individual botanists. Curiosity cabinets of nobles and prominent scholars were larger collections, in which all kinds of objects of natural history from remote regions could be incorporated. The Linnaean revolution favoured loose-leaf herbaria over the old book-herbaria: herbaria with loose...... sheets could be reorganised in agreement with new knowledge or theories and newly accessed specimens could be placed next to earlier ones of the same species. However, the Linnaean collections reflected the essentialist species concept, according to which all species consisted of individuals with similar...

  1. Climate Change Science Program Collection

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Climate Change Science Program (CCSP) Collection consists of publications and other resources produced between 2007 and 2009 by the CCSP with the intention of...

  2. 75 FR 68956 - Debt Collection

    Science.gov (United States)

    2010-11-10

    ... and procedure, Debt collection. Authority and Issuance 0 Accordingly, for the reasons stated in the..., divorce, death, or disability. (2) The request for special review must include an alternative proposed...

  3. Collective motion and giant resonances

    International Nuclear Information System (INIS)

    Wilhelmi, Z.; Kicinska-Habior, M.

    1984-01-01

    The report contains 15 papers devoted to problems of giant collective excitations of nuclei, heavy-ion induced reactions and their bearing on various aspects of nuclear structure. In some of them the numerical data are given. (A.S.)

  4. Water Column Sonar Data Collection

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The collection and analysis of water column sonar data is a relatively new avenue of research into the marine environment. Primary uses include assessing biological...

  5. Building digital collections: An evaluation

    Digital Repository Service at National Institute of Oceanography (India)

    Tapaswi, M.P.

    ) of the object. The chances of information entered in such a situation is not likely to follow the standards since the author is unfamiliar with data entry and the information retrieval process. It is therefore the collection manager's role in rewriting the same... has made it simple to share any information objects in close groups or even among the general public. The copyright restrictions therefore are easy to violate. It is the responsibility of the collection managers to ensure that the objects made...

  6. A new temperature collection system

    International Nuclear Information System (INIS)

    Kong Wenchuang; Wang Daihua; Zhang Zhijie

    2011-01-01

    According to the characteristics of explosion field temperature testing, a new temperature collection system based on complex programmable logic device (CPLD), single chip microcontroller (SCM) and static ram (SRAM) is proposed. The system adopts the NANMAC E12 type of thermocouple as the temperature sensor, DS600 temperature sensor for cold temperature compensation, with rapid synchronous collection, trigger and working parameters adjustable characteristics. The system used SCM combined with USB communication interface, easy operation and reliable. (authors)

  7. Collective action, clientelism and connectivity

    DEFF Research Database (Denmark)

    Shami, Mahvish

    that the unequal relationship between landlords and peasants does not, in and by itself, block peasant collective action. Rather, it is the interaction between clientelism and isolation that allow patrons to block community based projects. Despite still relying on powerful landlords, peasants in connected villages...... face no such constraints. On the contrary, their patrons assisted them in their collective endeavours, making the hierarchical network an added resource for peasants to rely upon....

  8. Collective behaviour across animal species.

    Science.gov (United States)

    DeLellis, Pietro; Polverino, Giovanni; Ustuner, Gozde; Abaid, Nicole; Macrì, Simone; Bollt, Erik M; Porfiri, Maurizio

    2014-01-16

    We posit a new geometric perspective to define, detect, and classify inherent patterns of collective behaviour across a variety of animal species. We show that machine learning techniques, and specifically the isometric mapping algorithm, allow the identification and interpretation of different types of collective behaviour in five social animal species. These results offer a first glimpse at the transformative potential of machine learning for ethology, similar to its impact on robotics, where it enabled robots to recognize objects and navigate the environment.

  9. The welcoming on the collective perspective: Welcoming collective body.

    Directory of Open Access Journals (Sweden)

    Marcia Maria Cappellano dos Santos

    2012-04-01

    Full Text Available The welcoming, on the singular e collective perspective, constitutes today in one of the main pillars that sustain the theorist organization, the practices and the strategic systems on the touristic planning in the private and public sphere. Thus, with the objective to contribute to a distinction in the processes that involve the welcoming on the singular and collective form it is presented the Welcoming Collective Body which has been developed from a study carried in potentially touristic communities. The model is implied as a system that covers: a the joint of the available services in the range from internal/external relations; b the managing organization with an operational nature that is public and private; c the culture and the knowledge generated, shared and transmitted by the group/community. The model allows the study of the welcoming/hospitality phenomenon in the context of the relations in which one body is constituted jointly.

  10. 77 FR 57080 - Proposed Agency Information Collection

    Science.gov (United States)

    2012-09-17

    ...-0149: Existing; (2) Information Collection Request Title: Evaluation of the Financial Reporting System... existing data collection, the Financial Reporting System, EIA-28. This is not a request to collect data... DEPARTMENT OF ENERGY Energy Information Administration Proposed Agency Information Collection...

  11. 75 FR 82416 - Proposed Information Collection Renewals

    Science.gov (United States)

    2010-12-30

    ... of three information collections: World Wise Schools Conference Online Registration Form (OMB 0420... of information technology. DATES: Comments regarding this collection must be received on or before...) information collections currently approved collection of information: 1. Title: World Wise Schools Conference...

  12. Bohunice Simulator Data Collection Project

    International Nuclear Information System (INIS)

    Cillik, Ivan; Prochaska, Jan

    2002-01-01

    The paper describes the way and results of human reliability data analysis collected as a part of the Bohunice Simulator Data Collection Project (BSDCP), which was performed by VUJE Trnava, Inc. with funding support from the U.S. DOE, National Nuclear Security Administration. The goal of the project was to create a methodology for simulator data collection and analysis to support activities in probabilistic safety assessment (PSA) and human reliability assessment for Jaslovske Bohunice nuclear power plant consisting of two sets of twin units: two VVER 440/V-230 (V1) and two VVER 440/V-213 (V2) reactors. During the project training of V-2 control room crews was performed at VUJE-Trnava simulator. The simulator training and the data collection were done in parallel. The main goal of BSDCP was to collect suitable data of human errors under simulated conditions requiring the use of symptom-based emergency operating procedures (SBEOPs). The subjects of the data collection were scenario progress time data, operator errors, and real-time technological parameters. The paper contains three main parts. The first part presents preparatory work and semi-automatic computer-based methods used to collect data and to check technological parameters in order to find hidden errors of operators, to be able to retrace the course of each scenario for purposes of further analysis, and to document the whole training process. The first part gives also an overview of collected data scope, human error taxonomy, and state classifications for SBEOP instructions coding. The second part describes analytical work undertaken to describe time distribution necessary for execution of various kinds of instructions performed by operators according to the classification for coding of SBEOP instructions. It also presents the methods used for determination of probability distribution for different operator errors. Results from the data evaluation are presented in the last part of the paper. An overview of

  13. Bohunice Simulator Data Collection Project

    International Nuclear Information System (INIS)

    Cillik, I.; Prochaska, J.

    2002-01-01

    The paper describes the way and results of human reliability data analysis collected as a part of the Bohunice Simulator Data Collection Project (BSDCP), which was performed by VUJE Trnava, Inc. with funding support from the U.S. DOE, National Nuclear Security Administration. The goal of the project was to create a methodology for simulator data collection and analysis to support activities in probabilistic safety assessment (PSA) and human reliability assessment for Jaslovske Bohunice nuclear power plant consisting of two sets of twin units: two VVER 440/V-230 (V1) and two VVER 440/V-213 (V2) reactors. During the project, training of V-2 control room crews was performed at VUJE Trnava simulator. The simulator training and the data collection were done in parallel. The main goal of BSDCP was to collect suitable data of human errors under simulated conditions requiring the use of symptom-based emergency operating procedures (SBEOPs). The subjects of the data collection were scenario progress time data, operator errors, and real-time technological parameters. The paper contains three main parts. The first part presents preparatory work and semi-automatic computer-based methods used to collect data and to check technological parameters in order to find hidden errors of operators, to be able to retrace the course of each scenario for purposes of further analysis, and to document the whole training process. The first part gives also an overview of collected data scope, human error taxonomy, and state classifications for SBEOP instructions coding. The second part describes analytical work undertaken to describe time distribution necessary for execution of various kinds of instructions performed by operators according to the classification for coding of SBEOP instructions. It also presents the methods used for determination of probability distribution for various operator errors. Results from the data evaluation are presented in the last part of the paper. An overview of

  14. Innovation in the collective brain

    Science.gov (United States)

    Muthukrishna, Michael; Henrich, Joseph

    2016-01-01

    Innovation is often assumed to be the work of a talented few, whose products are passed on to the masses. Here, we argue that innovations are instead an emergent property of our species' cultural learning abilities, applied within our societies and social networks. Our societies and social networks act as collective brains. We outline how many human brains, which evolved primarily for the acquisition of culture, together beget a collective brain. Within these collective brains, the three main sources of innovation are serendipity, recombination and incremental improvement. We argue that rates of innovation are heavily influenced by (i) sociality, (ii) transmission fidelity, and (iii) cultural variance. We discuss some of the forces that affect these factors. These factors can also shape each other. For example, we provide preliminary evidence that transmission efficiency is affected by sociality—languages with more speakers are more efficient. We argue that collective brains can make each of their constituent cultural brains more innovative. This perspective sheds light on traits, such as IQ, that have been implicated in innovation. A collective brain perspective can help us understand otherwise puzzling findings in the IQ literature, including group differences, heritability differences and the dramatic increase in IQ test scores over time. PMID:26926282

  15. Distributed privacy preserving data collection

    KAUST Repository

    Xue, Mingqiang

    2011-01-01

    We study the distributed privacy preserving data collection problem: an untrusted data collector (e.g., a medical research institute) wishes to collect data (e.g., medical records) from a group of respondents (e.g., patients). Each respondent owns a multi-attributed record which contains both non-sensitive (e.g., quasi-identifiers) and sensitive information (e.g., a particular disease), and submits it to the data collector. Assuming T is the table formed by all the respondent data records, we say that the data collection process is privacy preserving if it allows the data collector to obtain a k-anonymized or l-diversified version of T without revealing the original records to the adversary. We propose a distributed data collection protocol that outputs an anonymized table by generalization of quasi-identifier attributes. The protocol employs cryptographic techniques such as homomorphic encryption, private information retrieval and secure multiparty computation to ensure the privacy goal in the process of data collection. Meanwhile, the protocol is designed to leak limited but non-critical information to achieve practicability and efficiency. Experiments show that the utility of the anonymized table derived by our protocol is in par with the utility achieved by traditional anonymization techniques. © 2011 Springer-Verlag.

  16. Collective Design of an E-Textbook: Teachers' Collective Documentation

    Science.gov (United States)

    Gueudet, Ghislaine; Pepin, Birgit; Sabra, Hussein; Trouche, Luc

    2016-01-01

    In this study, we investigated design processes in teacher collectives, which have been made possible by new "digital" opportunities: platforms, discussion lists, etc. The object of our study is the French Sésamath teacher association and its design of a grade 10 e-textbook, more precisely the design of the "functions" chapter.…

  17. 77 FR 6861 - Agency Information Collection Activity; Proposed Collection

    Science.gov (United States)

    2012-02-09

    ... 1995, Public Law 104-13(44 U.S.C. 3506(c)(2)(A)). DATES: Written comments should be received on or... OMB control number. Books or records relating to a collection of information must be retained as long as their contents may become material in the administration of any internal revenue law. Generally...

  18. 77 FR 6859 - Agency Information Collection Activity; Proposed Collection

    Science.gov (United States)

    2012-02-09

    ... 1995, Public Law 104-13 (44 U.S.C. 3506(c)(2)(A)). DATES: Written comments should be received on or... of gain or loss from hedging transactions. The regulations reflect changes to the law made by the... number. Books or records relating to a collection of information must be retained as long as their...

  19. The EMBRACE web service collection

    DEFF Research Database (Denmark)

    Pettifer, S.; Ison, J.; Kalas, M.

    2010-01-01

    The EMBRACE (European Model for Bioinformatics Research and Community Education) web service collection is the culmination of a 5-year project that set out to investigate issues involved in developing and deploying web services for use in the life sciences. The project concluded that in order...... for web services to achieve widespread adoption, standards must be defined for the choice of web service technology, for semantically annotating both service function and the data exchanged, and a mechanism for discovering services must be provided. Building on this, the project developed: EDAM......, an ontology for describing life science web services; BioXSD, a schema for exchanging data between services; and a centralized registry (http://www.embraceregistry.net) that collects together around 1000 services developed by the consortium partners. This article presents the current status of the collection...

  20. Dissipation and nuclear collective motion

    International Nuclear Information System (INIS)

    Hofmann, Helmut; Jensen, A.S.; Ngo, Christian; Siemens, P.J.; California Univ., Berkeley

    1979-01-01

    This contribution is intended to give a brief summary of a forthcoming paper which shall review extensively the linear response theory for dissipation and statistical fluctuations as well as its application to heavy-ion collisions. It shall contain new results on the following subjects: numerical computations of response functions and transport coefficients; dissipation in a self-consistent treatment of harmonic vibrations; introduction of collective variables within a quantum theory. The method used consists of an extended version of the Bohm and Pines treatment of the electron gas. It allows to deduce a quantum Hamiltonian for the collective and intrinsic motion including coupling terms; discussion and solution of a quantal Master equation for non-linear collective motion. Additionally, a somewhat elaborate discussion of the problems of irreversibility is given, especially in connection to a treatment within the moving basis

  1. Collective health and family medicine

    Directory of Open Access Journals (Sweden)

    Donovan Casas Patiño

    2013-05-01

    Full Text Available In Mexico, the arrangement of clinical practice has been influenced by a decision-making process that seeks to improve health indicators, thus transforming the patient into a number. Family medicine has been practiced within the limits of an institutional biomedical model where the health-disease process is approached from a biologist perspective. On the other hand, collective health understands this process as stemming from the collective sphere and includes social and biological perspectives, giving an important standing to society. Likewise, it puts policy as a determinant in bettering social health bringing together public policy with health matters. Family medicine must become the axis around which health needs are catered to, together with social conditioning factors that affect families and individuals. This leads to a trans-disciplinary approach to communities set free from a mere biomedical profile. In this context, collective health provides theoretical support to the upcoming debate on family medicine.

  2. Shimpent mobility accountability collection (SMAC)

    International Nuclear Information System (INIS)

    Best, R.E.; Hamberger, C.R.; Moerchen, M.F.; Maddigan, R.J.; Lester, P.B.; Shappert, L.B.

    1995-01-01

    SMAC 4 is the US Department of Energy's (DOE) information system that collects, stores, and analyzes information on all unclassified shipments to and from DOE facilities. SMAC is operated for and under the direction of DOE's Office of Environmental Management (EM) Transportation Management Division (TMD). Currently, SMAC serves DOE Headquarters, Operations offices, Field Offices, and 64 field locations. The system provides data and analysis services to DOE and its contractors, transportation managers, and specialists. It is used to collect data from the sources of transportation activities, screen the data to ensure their quality, train personnel who collect and report the data, analyze data elements, help users conduct their own analyses, and develop and present reports on DOE's transportation activities to DOE and contractor management

  3. Building an Archival Collections Portal

    Directory of Open Access Journals (Sweden)

    Stuart Marquis

    2008-06-01

    Full Text Available Columbia University Libraries has developed the Archival Collections Portal, a unified search system helping users discover archival resources in a streamlined way. We combined the power of Lucene and Solr to search XML, parse JSON objects, create EAD-compliant documents, and deliver results in an easy-to-use interface. By reusing MARC records and employing new search engine features and techniques, we are able to bring important and hard-to-find collections to researchers and archivists. The canonical home page of the Portal is http://www.columbia.edu/library/archival/.

  4. Collection of Recyclables from Cubes

    DEFF Research Database (Denmark)

    Wøhlk, Sanne; Bogh, Morten Bie; Mikkelsen, Hardy

    2014-01-01

    Collection of recyclable materials is a major part of reverse logistics and an important issue in sustainable logistics. In this paper we consider a case study where paper and glass are collected from recycling cubes and transported to a treatment facility where it is processed for reuse. We...... analyze how outsourcing the planning and transportation of the service can result in conflicts of interest and as a consequence cause unsustainable solutions. Finally, we suggest an alternative payment structure which can lead to a common goal, overall economic sustainability, and an improved financial...

  5. Waste collection systems for recyclables

    DEFF Research Database (Denmark)

    Larsen, Anna Warberg; Merrild, Hanna Kristina; Møller, Jacob

    2010-01-01

    and technical limitations are respected, and what will the environmental and economic consequences be? This was investigated in a case study of a municipal waste management system. Five scenarios with alternative collection systems for recyclables (paper, glass, metal and plastic packaging) were assessed...... and treatment of waste were reduced with increasing recycling, mainly because the high cost for incineration was avoided. However, solutions for mitigation of air pollution caused by increased collection and transport should be sought. (C) 2009 Elsevier Ltd. All rights reserved....

  6. The Papyrus Carlsberg Collection & Project

    DEFF Research Database (Denmark)

    Ryholt, Kim

    2016-01-01

    The Papyrus Carlsberg Collection houses an invaluable collection of ancient papyrus manuscripts. At its center are the remains of the Tebtunis temple library, a unique archaeological discovery that represents the only large-scale institional library preserved from ancient Egypt. The papyri, which...... papyri known to date. It preserves a broad range of texts, including detailed manuals on the performance of various rituals, religious compendia and treatises, scientific texts concerned with divination and medicine, and narrative literature. The texts shed detailed light on the operation of a temple...

  7. Slovene Ethnographic Museum Web Collections

    Directory of Open Access Journals (Sweden)

    Miha Špiček

    2013-09-01

    Full Text Available EXTENDED ABSTRACT:Are you interested in the night view of Ljubljana or in the view on the Ljubljana skyscraper in the 30- ies of the 20th century? What did Cerknica look like in that time? What did a typical alpine house look like? What beds were used fifty years ago? Are you a sports fan interested in the training of Yugoslav athletic team in 1953? Is it true that Anton Codelli and his colleague Leo Poljanec set up the first wireless telegraph station for the company Telefunken in the West African German colony of Togo? What is a Palm Sunday bundle? Is a duel between a woman of Carinthia and Carniola really painted on a wooden bee hive panel? What on earth is an object called »roš«? What chimneys were built on the roofs of the Artiže village? The answers to these unusual questions can be found on the SEM (Slovene Ethnographic Museum website. The SEM documentation comprises numerous collections of photographs which are of interest to ethnologists as well as to the general public. To facilitate the access to them SEM bought the first scanner and started to scan individual photos in 1997. In 2007 SEM continued with systematic digitisation of the most frequently used collections of photos. In 2009 the activities were continued (partly in cooperation with external partners and we joined the Athena EU project. In order to be promoted the entire collections were published on the SEM website and made accessible to a broad audience. The MINOK software enabling the creation of html catalogues was used. As static catalogues were unsuitable for inclusion on the website, a new application using dynamic html was designed to create the gallery view of museum objects and photos, photo slide show, keyword filter, geolocation filter, display of geolocation on a map, and to offer the possibility of advanced searching. The Galerist software was designed by an external partner. It enables html catalogue import, sorting and editing XML files; it is possible to

  8. Evolution of collectivity in nuclei

    International Nuclear Information System (INIS)

    Muralithar, S.

    2016-01-01

    Nuclear structure studies provide opportunity to understand various modes of excitations and shapes of nucleus as a function of angular momentum, excitation energy and iso-spin. Single particle and collective excitations keep competing and give rise to interesting structures. Phenomena namely back bending, band termination, shape co-existence, rotational bands with different configurations and octupole correlation were reported using gamma ray spectroscopy method. Above nuclear phenomena were studied using Gamma detector array (GDA), Plunger, Heavy Ion Recoil Analyser GDA, Indian National Gamma Array - HlRA at IUAC by various users. Some examples of evolution of collectivity in nuclear structure studies carried out will be presented. (author)

  9. Collect once - use many times

    DEFF Research Database (Denmark)

    Toftdahl, Anne Katrine Skjølstrup; Pape-Haugaard, Louise; Palsson, Thorvaldur Skuli

    2018-01-01

    In Denmark, patients being treated on Haematology Outpatients Departments get instructed to self-manage their blood sample collection from Central Venous Catheter (CVC). However, this is a complex and risky procedure, which can jeopardize patient safety. The aim of the study was to suggest a meth...

  10. Collective intelligent wireless sensor networks

    NARCIS (Netherlands)

    Mihaylov, M.; Nowe, A.; Tuyls, K.P.; Nijholt, A.; Pantic, M.

    2008-01-01

    In this paper we apply the COllective INtelligence (COIN) framework ofWolpert et al. toWireless Sensor Networks (WSNs) with the aim to increase the autonomous lifetime of the network in a decentralized manner. COIN describes how selfish agents can learn to optimize their own performance, so that the

  11. Entropy as a collective variable

    Science.gov (United States)

    Parrinello, Michele

    Sampling complex free energy surfaces that exhibit long lived metastable states separated by kinetic bottlenecks is one of the most pressing issues in the atomistic simulations of matter. Not surprisingly many solutions to this problem have been suggested. Many of them are based on the identification of appropriate collective variables that span the manifold of the slow varying modes of the system. While much effort has been put in devising and even constructing on the fly appropriate collective variables there is still a cogent need of introducing simple, generic, physically transparent, and yet effective collective variables. Motivated by the physical observation that in many case transitions between one metastable state and another result from a trade off between enthalpy and entropy we introduce appropriate collective variables that are able to represent in a simple way these two physical properties. We use these variables in the context of the recently introduced variationally enhanced sampling and apply it them with success to the simulation of crystallization from the liquid and to conformational transitions in protein. Department of Chemistry and Applied Biosciences, ETH Zurich, and Facolta' di Informatica, Istituto di Scienze Computazionali, Universita' della Svizzera Italiana, Via G. Buffi 13, 6900 Lugano, Switzerland.

  12. The power of collective ambition.

    Science.gov (United States)

    Ready, Douglas A; Truelove, Emily

    2011-12-01

    In the past few years, some companies have not just weathered the economic storm: They've emerged stronger than ever. How did such players as Four Seasons, Sephora, and Standard Chartered Bank defy conventional logic? Instead of pursuing a single ambition, such as profits, employees defined a collective ambition. As a result, those organizations deepened their engagement with employees and other stakeholders and became sustainably profitable. Purpose, a company's reason for existence, is the central element of collective ambition. The other elements--vision, targets and milestones, strategic and operational priorities, brand promise, core values, and leader behaviors--must be aligned to serve the company's purpose. Articulating the elements of collective ambition can give everyone in the organization a better sense of the company's purpose and how they can contribute to it. Purpose does not have to be about saving the world; providing excellent entertainment or banking services is just as meaningful a purpose as improving health care in emerging economies--as long as it is an authentic representation of why the company exists. To shape and then achieve a collective ambition, companies must strengthen their organizational glue (the collaborative engagement that creates a unified culture) and grease (the disciplined execution that enterprisewide change initiatives require).

  13. Biological Collections: Chasing the Ideal

    Science.gov (United States)

    Kamenski, P. A.; Sazonov, A. E.; Fedyanin, A. A.; Sadovnichy, V. A.

    2016-01-01

    This article is based on the results of an analysis of existing biological collections in Russia and abroad set up in the framework of the project “Scientific Basis of the National Biobank –Depository of Living Systems” by M.V. Lomonosov Moscow State University [1]. PMID:27437135

  14. Select Papyri from Danish Collections

    DEFF Research Database (Denmark)

    Christiansen, Thomas

    The thesis, Select Papyri from Danish Collections: Philological and Archaeometric Studies, consists of an introduction, a book, four articles and a rapport on a scientific experiment at EuropeanRadiation Synchrotron Facility(ESRF), Grenoble, France, together with an application for another...

  15. Anurans Collected in West Malaysia

    DEFF Research Database (Denmark)

    Cedhagen, Tomas

    1997-01-01

    Distributional records and natural history noles are given for anurans collected in West Malaysia 1976. Rano baramica was observed when it was caught by an Ahaetulfa nasula (Serpentes: Colubridae). Rhacophorus leucomystax, Limnonectes limnociulris and Microhyla heymonsi were all found al night on...

  16. Ethnopharmacology, indigenous collection and preservation ...

    African Journals Online (AJOL)

    An ethnomedicinal study was conducted in the remote Hindukush-Himalayan valleys of Utror and Gabral, during which 36 common folk medicinal recipes of the area were documented. The indigenous methods of medicinal plants collection and their further processing were also explored. It was also observed that huge ...

  17. Collected Papers of Srinivasa Ramanujan

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 18; Issue 9. Collected Papers of Srinivasa Ramanujan. J E Littlewood. Classics Volume 18 Issue 9 September 2013 pp 859-865. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/018/09/0859-0865 ...

  18. The Power of Collective Efficacy

    Science.gov (United States)

    Donohoo, Jenni; Hattie, John; Eells, Rachel

    2018-01-01

    When the members of a team of educators are confident they have the ability to make a difference in a school, it can have a significant impact on school culture and achievement. In this article, the authors discuss the ways that collective efficacy (or its absence) manifests in a school and offer suggestions for leaders on how to develop it. Key…

  19. Radioactive Decay: Audio Data Collection

    Science.gov (United States)

    Struthers, Allan

    2009-01-01

    Many phenomena generate interesting audible time series. This data can be collected and processed using audio software. The free software package "Audacity" is used to demonstrate the process by recording, processing, and extracting click times from an inexpensive radiation detector. The high quality of the data is demonstrated with a simple…

  20. 3-dimensional Charge Collection Efficiency

    CERN Document Server

    Kodak, Umut

    2013-01-01

    In this project, we designed a simulation program to create the efficiency map of a 3 dimensional rectangular detector. Efficiency is calculated by observing the collected charge at the output. Using this simulation program, one can observe the inefficient regions at not only on the surface of detector but at the depths of detector.

  1. Collective states and crossing symmetry

    International Nuclear Information System (INIS)

    Heiss, W.D.

    1977-01-01

    Collective states are usually described in simple terms but with the use of effective interactions which are supposed to contain more or less complicated contributions. The significance of crossing symmetry is discussed in this connection. Formal problems encountered in the attempts to implement crossing symmetry are pointed out

  2. An Intelligence Collection Management Model.

    Science.gov (United States)

    1984-06-01

    classification of inteligence collection requirements in terms of. the a-.- metnodo"c, .ev--e in Chaster Five. 116 APPgENDIX A A METHOD OF RANKING...of Artificial Intelligence Tools and Technigues to!TN’X n~l is n rs aa~emfft-.3-ufnyva: ’A TZ Ashby W. Ecss. An Introduction to Cybernetics. New York

  3. Genetic disorders as collective phenomena

    International Nuclear Information System (INIS)

    Chela-Flores, J.

    1987-05-01

    Genetic disorders due to human chromosome aberrations in number are discussed from the point of view of Molecular Genetics. The etiology of trisomy is discussed in the light of the collective variables recently introduced and an age-dependent metabolic disorder is suggested as a possible etiological factor. (author). 11 refs

  4. Differentiated waste collection in Italy

    International Nuclear Information System (INIS)

    Iaboni, V.; Landolfo, P.G.

    2008-01-01

    Differentiated collection is an essential part of the integrated urban waste management system. Despite the progress made in recent years, Italy is still far from achieving the targets set by EU regulations. The simulation thus calls for great efforts by local administrations and individual citizens, especially in the Southern part of the country [it

  5. Collective coordinates on symplectic manifolds

    International Nuclear Information System (INIS)

    Razumov, A.V.; Taranov, A.Yu.

    1981-01-01

    For an arbitrary Lie group of canonical transformations on a symplectic manifold collective coordinates are introduced. They describe a motion of the dynamical system as a whole under the group transformations. Some properties of Lie group of canonical transformations are considered [ru

  6. Qualitative data collection with children.

    Science.gov (United States)

    Spratling, Regena; Coke, Sallie; Minick, Ptlene

    2012-02-01

    Qualitative researchers have clear methods to guide them in data collection with adult participants, but little is known about effective interview techniques with children. The findings from this methodological study on qualitative interviews with children indicate that children are able to articulate their experiences in interviews. Copyright © 2012 Elsevier Inc. All rights reserved.

  7. Collective Management of Reference Services.

    Science.gov (United States)

    Comer, Cynthia H.; And Others

    1988-01-01

    Describes a one-year experiment with collective management--i.e., management in which decision-making rests with the department as a whole--in the Oberlin College Library reference department. The planning process, problems, and advantages and disadvantages of this style of management are discussed. Several questions are raised about the…

  8. Information from the Collection Service

    CERN Multimedia

    GS Department

    2010-01-01

    As from Thursday 11 March two containers for the collection used NESPRESSO capsules will be at your disposal: One container near Building 133 (Recuperation and Sales Service); One container near Building 904 (Goods Reception). The used capsules will be dispatched to an industrial processing centre for recycling.

  9. Ecology: From Individuals to Collectives

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 19; Issue 4. Ecology: From Individuals to Collectives: A Physicist's Perspective on Ecology. Vishwesha Guttal. Series Article Volume 19 Issue 4 April 2014 pp 368-375. Fulltext. Click here to view fulltext PDF. Permanent link:

  10. Business Sustainability and Collective Intelligence

    Science.gov (United States)

    Garrido, Paulo

    2009-01-01

    Purpose: The purpose of this paper is to analyze to which point collective intelligence (CI) concepts and ideas, as applied to organizations, can contribute to enlarge the conceptual basis for business sustainability (BS). Design/methodology/approach: The paper is written from an engineer-minded, systemic and cybernetic perspective. It begins by…

  11. Equal Potential: A Collective Fraud.

    Science.gov (United States)

    Gottfredson, Linda S.

    2000-01-01

    Critiques the College Board's report, "Reaching the Top," asserting that it illustrates collective fraud in the social sciences, which sustains an egalitarian fiction that intelligence is clustered equally across all human populations. Suggests that while the report omits certain popular falsehoods, it also omits crucial truths about…

  12. QR Codes: Taking Collections Further

    Science.gov (United States)

    Ahearn, Caitlin

    2014-01-01

    With some thought and direction, QR (quick response) codes are a great tool to use in school libraries to enhance access to information. From March through April 2013, Caitlin Ahearn interned at Sanborn Regional High School (SRHS) under the supervision of Pam Harland. As a result of Harland's un-Deweying of the nonfiction collection at SRHS,…

  13. 75 FR 42662 - Debt Collection

    Science.gov (United States)

    2010-07-22

    ... agencies, Pension insurance, Pensions). 29 CFR Part 4903 Claims. For the reasons given above, PBGC proposes..., divorce, death, or disability? 4903.20 Will PBGC issue a refund if money is erroneously collected on a... been suspended for any reason (for example, when the debtor has requested a hearing). PBGC may suspend...

  14. The EMBRACE web service collection.

    NARCIS (Netherlands)

    Pettifer, S.; Ison, J.; Kalas, M.; Thorne, D.; McDermott, P.; Jonassen, I.; Liaquat, A.; Fernandez, J.M.; Rodriguez, J.M.; Pisano, D.G.; Blanchet, C; Uludag, M.; Rice, P.; Bartaseviciute, E.; Rapacki, K.; Hekkelman, M.L.; Sand, O.; Stockinger, H.; Clegg, A.B.; Bongcam-Rudloff, E.; Salzemann, J.; Breton, V.; Attwood, T.K.; Cameron, G.; Vriend, G.

    2010-01-01

    The EMBRACE (European Model for Bioinformatics Research and Community Education) web service collection is the culmination of a 5-year project that set out to investigate issues involved in developing and deploying web services for use in the life sciences. The project concluded that in order for

  15. Sub-Saharan Botanical Collections

    DEFF Research Database (Denmark)

    Demissew, Sebsebe; Beentje, Henk; Cheek, Martin

    2015-01-01

    exists in both humid and arid parts of Africa. Lack of collections from and knowledge about areas of high species diversity makes it difficult to prioritise conservation efforts. Gaps in taxonomic knowledge exist in certain large families, such as Rubiaceae, or in large genera, such as Cyphostemma...

  16. Frame of Reference: Special Collections

    Science.gov (United States)

    Goetsch, Lori A.

    2010-01-01

    Rare, distinctive, unique--academic libraries are exploring new ways to describe and define what they've traditionally called special collections: incunabula, manuscripts, rare books, cultural artifacts and more. These valuable, historically important, and often one-of-a-kind artifacts can be a treasure trove for scholars and students. Technology…

  17. Dissecting spontaneous cerebrospinal fluid collection.

    Science.gov (United States)

    Champagne, Pierre-Olivier; Decarie, Jean-Claude; Crevier, Louis; Weil, Alexander G

    2018-04-01

    Hydrocephalus is a common condition in the pediatric population known to have many causes and presentation patterns. We report from the analysis of 2 cases the existence of a new complication of pediatric hydrocephalus. Naming this entity "dissecting intraparenchymal cerebrospinal fluid collection", we advance a hypothesis regarding its pathophysiology and discuss its clinical implications and management. Copyright © 2018 Elsevier Ltd. All rights reserved.

  18. The concept of collective injury and of collective dose commitment

    International Nuclear Information System (INIS)

    Jacobi, W.

    The procedure of optimization based on a cost-benefit-analysis ought to include also costs resulting from injuries to health and environment according to the polluter - pays principle. The implementation of a quantitative optimization analysis in the field of radiation protection, however, seems to be extremely difficult. The expediency and applicability needs careful examination. To develop, or to select appropriate strategies of protection, the concept has to be considered on a long-term basis as something giving the direction for future planning of radiation protection. The term of collective injury and collective dose commitment is of prime importance in this context. In principle the concept can be applied to other noxae, especially to carcinogenic and mutagenic chemicals. (DG) [de

  19. 32 CFR 204.6 - Collections.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Collections. 204.6 Section 204.6 National... USER FEES § 204.6 Collections. (a) Collections of fees will be made in advance or simultaneously with..., and managing cash and debt collections. (b) Unless a statute provides otherwise, user fee collections...

  20. 25 CFR 175.32 - Collections.

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Collections. 175.32 Section 175.32 Indians BUREAU OF..., Payments, and Collections § 175.32 Collections. The utility shall attempt collection on checks returned by... for each collection action taken by the utility other than court proceedings. An unredeemed check...

  1. 78 FR 56241 - Agency Information Collection Activities:

    Science.gov (United States)

    2013-09-12

    ...-0095] Agency Information Collection Activities: Notice of Appeal or Motion, Form I-290B; Revision of a... Collection (1) Type of Information Collection Request: Revision of a Currently Approved Collection. (2) Title of the Form/Collection: Notice of Appeal or Motion. (3) Agency form number, if any, and the...

  2. Privacy-Preserving Trajectory Collection

    DEFF Research Database (Denmark)

    Gidofalvi, Gyozo; Xuegang, Huang; Pedersen, Torben Bach

    2008-01-01

    In order to provide context--aware Location--Based Services, real location data of mobile users must be collected and analyzed by spatio--temporal data mining methods. However, the data mining methods need precise location data, while the mobile users want to protect their location privacy....... To remedy this situation, this paper first formally defines novel location privacy requirements. Then, it briefly presents a system for privacy--preserving trajectory collection that meets these requirements. The system is composed of an untrusted server and clients communicating in a P2P network. Location...... data is anonymized in the system using data cloaking and data swapping techniques. Finally, the paper empirically demonstrates that the proposed system is effective and feasible....

  3. Cyberemotions collective emotions in cyberspace

    CERN Document Server

    2017-01-01

    This first monograph of its kind introduces the reader to fundamental definitions, key concepts and case studies addressing the following issues of rapidly growing relevance for online communities: What are emotions? How do they emerge, how are they transmitted? How can one measure emotional states? What are cyberemotions? When do emotions and cyberemotions become collective phenomena? How can one model emotions and their changes? What role do emotions play for on-line communities? Edited and authored by leading scientists in this field, this book is a comprehensive reference for anyone working on applications of complex systems methods in the social sciences, as well as for social scientists, psychologists, experts in on-line communities and computer scientists. This book provides an excellent overview of the current state-of-art in research on collective emotional interactions mediated by the Internet. It introduces a reader in social phenomena occurring in cyberspace, algorithms needed for automatic sentim...

  4. The Surrealist Collection of Objects

    Directory of Open Access Journals (Sweden)

    Pérez, Leticia

    2010-01-01

    Full Text Available In this article I shall discuss the Surrealist collection of objects as a form of art which arises out of mass production forces of the new era. These goods, deeply rooted in the capitalist laws of use-, exchange- and surplus-value, carry in themselves two materialist approaches which end in dialectical materialism. On the one hand, they epitomize the supreme forces of commodity fetishism ingrained in capitalist structures; on the other hand, they arouse unconscious desires which respond to the needs of the society of consumption. Thus, I will explore the act of object-collecting in the most radical Surrealist practices (dream objects, found objects, poème-objets, calligrammes, readymades and Surrealist objects as a way to not only delve into a new art, but also to reflect on societal ongoing transformations and paradoxes.

  5. Advances in Collective Intelligence 2011

    CERN Document Server

    Baumöl, Ulrike; Krämer, Bernd

    2012-01-01

    Collective intelligence has become an attractive subject of interest for both academia and industry. More and more conferences and workshops discuss the impact of the users‘ motivation to participate in the value creation process, the enabling role of leading-edge information and communication technologies and the need for better algorithms to deal with the growing amount of shared data. There are many interesting and challenging topics that need to be researched and discussed with respect to knowledge creation, creativity and innovation processes carried forward in the emerging communities of practice. COLLIN is on the path to become the flagship conference in the areas of collective intelligence and ICT-enabled social networking. We were delighted to again receive contributions from different parts of the world including Australia, Europe, Asia, and the United States. Encouraged by the positive response, we plan COLLIN 2012 to be held next year end of August at FernUniverstität in Hagen. In order to guar...

  6. Students Collecting Real time Data

    Science.gov (United States)

    Miller, P.

    2006-05-01

    Students Collecting Real-Time Data The Hawaiian Islands Humpback Whale National Marine Sanctuary has created opportunities for middle and high school students to become Student Researchers and to be involved in real-time marine data collection. It is important that we expose students to different fields of science and encourage them to enter scientific fields of study. The Humpback Whale Sanctuary has an education visitor center in Kihei, Maui. Located right on the beach, the site has become a living classroom facility. There is a traditional Hawaiian fishpond fronting the property. The fishpond wall is being restored, using traditional methods. The site has the incredible opportunity of incorporating Hawaiian cultural practices with scientific studies. The Sanctuary offers opportunities for students to get involved in monitoring and data collection studies. Invasive Seaweed Study: Students are collecting data on invasive seaweed for the University of Hawaii. They pull a large net through the shallow waters. Seaweed is sorted, identified and weighed. The invasive seaweeds are removed. The data is recorded and sent to UH. Remote controlled monitoring boats: The sanctuary has 6 boogie board sized remote controlled boats used to monitor reefs. Boats have a camera with lights on the underside. The boats have water quality monitoring devices and GPS units. The video from the underwater camera is transmitted via a wireless transmission. Students are able to monitor the fish, limu and invertebrate populations on the reef and collect water quality data via television monitors or computers. The boat can also pull a small plankton tow net. Data is being compiled into data bases. Artificial Reef Modules: The Sanctuary has a scientific permit from the state to build and deploy artificial reef modules. High school students are designing and building modules. These are deployed out in the Fishpond fronting the Sanctuary site and students are monitoring them on a weekly basis

  7. Collective accelerator for electron colliders

    Energy Technology Data Exchange (ETDEWEB)

    Briggs, R.J.

    1985-05-13

    A recent concept for collective acceleration and focusing of a high energy electron bunch is discussed, in the context of its possible applicability to large linear colliders in the TeV range. The scheme can be considered to be a member of the general class of two-beam accelerators, where a high current, low voltage beam produces the acceleration fields for a trailing high energy bunch.

  8. Collective accelerator for electron colliders

    International Nuclear Information System (INIS)

    Briggs, R.J.

    1985-01-01

    A recent concept for collective acceleration and focusing of a high energy electron bunch is discussed, in the context of its possible applicability to large linear colliders in the TeV range. The scheme can be considered to be a member of the general class of two-beam accelerators, where a high current, low voltage beam produces the acceleration fields for a trailing high energy bunch

  9. Charge collection and SEU mechanisms

    Science.gov (United States)

    Musseau, O.

    1994-01-01

    In the interaction of cosmic ions with microelectronic devices a dense electron-hole plasma is created along the ion track. Carriers are separated and transported by the electric field and under the action of the concentration gradient. The subsequent collection of these carriers induces a transient current at some electrical node of the device. This "ionocurrent" (single ion induced current) acts as any electrical perturbation in the device, propagating in the circuit and inducing failures. In bistable systems (registers, memories) the stored data can be upset. In clocked devices (microprocessors) the parasitic perturbation may propagate through the device to the outputs. This type of failure only effects the information, and do not degrade the functionally of the device. The purpose of this paper is to review the mechanisms of single event upset in microelectronic devices. Experimental and theoretical results are presented, and actual questions and problems are discussed. A brief introduction recalls the creation of the dense plasma of electron-hole pairs. The basic processes for charge collection in a simple np junction (drift and diffusion) are presented. The funneling-field effect is discussed and experimental results are compared to numerical simulations and semi-empirical models. Charge collection in actual microelectronic structures is then presented. Due to the parasitic elements, coupling effects are observed. Geometrical effects, in densely packed structures, results in multiple errors. Electronic couplings are due to the carriers in excess, acting as minority carriers, that trigger parasitic bipolar transistors. Single event upset of memory cells is discussed, based on numerical and experimental data. The main parameters for device characterization are presented. From the physical interpretation of charge collection mechanisms, the intrinsic sensitivity of various microelectronic technologies is determined and compared to experimental data. Scaling laws

  10. The Morris Nathanson Design Collection

    Directory of Open Access Journals (Sweden)

    Christopher Muller

    2013-07-01

    Full Text Available For more than a half century, Morris Nathanson has been at the forefront of creative interior design for the hospitality industry. He has nurtured, trained, and mentored scores of designers and project managers, while helping to launch the concept and brand development for dozens of landmark restaurant companies. Several images are reproduced from a vast collection of original drawings that have been donated to Boston University.

  11. Specimen Collection and Submission Manual

    Science.gov (United States)

    2016-06-01

    collection procedures. Urine Sterile screw-capped, leak proof, container or sterile urine container A clean catch mid-stream sample is preferred. Follow...several days cannot be avoided, freeze samples for storage and ship frozen on dry ice. TR-16-161 DISTRIBUTION STATEMENT A: Approved for public...designed to provide detailed instructions for submission of samples that will be analyzed in the SPL. Tests that are not listed may require special

  12. Content, Cost, Chance, and Collection

    OpenAIRE

    Lorenzen, Mark

    2007-01-01

    This Working Paper argues that the film industry is a paradigmatic example of how the organization of the cultural economy is shaped by balancing creativity with contextual issues. In the film industry, organization is far from determined only by creative concerns for content production: Issues of cost, chance and collection also play important roles. Through analyzing creativity and its context in the film industry, the paper explains the industry’s organization, and opens up for understandi...

  13. Nonlinear effects in collective absorption

    International Nuclear Information System (INIS)

    Uenoyama, Takeshi; Mima, Kunioki; Watanabe, Tsuguhiro.

    1981-01-01

    The collective absorption of high intensity laser radiation is analyzed numerically. Density profile modification due to the ponderomotive force associating laser radiation and the excited electron plasma waves is self-consistently taken into account, and the intensity dependences of the absorption efficiency are obtained. In the high intensity regime, the absorption efficiency is found to be strongly enhanced in the plasma without flow, but reduced with supersonic flow. (author)

  14. Selected collection of circuit drawings

    International Nuclear Information System (INIS)

    1977-01-01

    The many electronics circuits have been constracted in the Electronics Shop for use in nuclear experiments or other purposes of this Institute. The types of these circuits amount to about 500 items in total since 1968. This report describes the electronics circuit diagrams selected from this collection. The circuit details are not presented in this report, because these are already been published in the other technical reports. (auth.)

  15. Rebuilding the Mackintosh Library collection

    OpenAIRE

    Buri, David

    2015-01-01

    Summarises progress to date in rebuilding the former Mackintosh Library book and journal collections. Focuses on the need to restore the library's holdings of pre-1985 architectural magazines, and describes the large donation of such material donated by the Royal Incorporation of Architects in Scotland (RIAS) in early 2014. Looks at the history of some of these magazines and their contribution to the architectural profession, and invites further donations of material to help rebuild the Macki...

  16. Coordination and Collective Decision Making

    Science.gov (United States)

    2015-08-21

    collective foraging (self-propelled interacting particles) within an evolutionary framework, and tools from dynamical systems theory, statistical...position of individuals affects their influence on swarms: A numerical comparison of two popular swarm dynamics models, PLoS ONE, (03 2013): 58525...Individuals Affects Their Influence on Swarms: A Numerical Comparison of Two Popular Swarm Dynamics Models, PLoS ONE, (03 2013): 58525. doi: Ugo Lopez

  17. Collections XVII (The Malone Society)

    OpenAIRE

    Keenan, Siobhan; Giddens, Eugene

    2016-01-01

    Collections XVII is the latest volume in the Malone Society's pioneering series of editions of miscellaneous documents relating to English theatre and drama before 1642. It is likely to be of special interest not only to early theatre historians but to those working on Tudor and Stuart court and civic culture, manuscript writing, household drama and early modern women's writing, as it publishes new material in each of these fields. The book includes items such as Revels Office accounts, a pla...

  18. Used Battery Collection and Recycling

    International Nuclear Information System (INIS)

    Pistoia, G.; Wiaux, J.P.; Wolsky, S.P.

    2001-01-01

    This book covers all aspects of spent battery collection and recycling. First of all, the legislative and regulatory updates are addressed and the main institutions and programs worldwide are mentioned. An overview of the existing battery systems, of the chemicals used in them and their hazardous properties is made, followed by a survey of the major industrial recycling processes. The safety and efficiency of such processes are stressed. Particular consideration is given to the released emissions, i.e. to the impact on human health and the environment. Methods for the evaluation of this impact are described. Several chapters deal with specific battery chemistries: lead-acid, nickel-cadmium and nickel-metal hydride, zinc (carbon and alkaline), lithium and lithium-ion. For each type of battery, details are provided on the collection/recycling process from the technical, economic and environmental viewpoint. The chemicals recoverable from each process and remarketable are mentioned. A chapter deals with recovering of the large batteries powering electric vehicles, e.g. lead-acid, nickel-metal hydride and lithium-ion. The final chapter is devoted to the important topic of collecting batteries from used electrical and electronic equipment. The uncontrolled disposal of these devices still containing their batteries contributes to environmental pollution

  19. 77 FR 36008 - Agency Information Collection Activities; Proposed Collection: Cargo Theft Incident Report...

    Science.gov (United States)

    2012-06-15

    ... Collection Activities; Proposed Collection: Cargo Theft Incident Report, Revision of a Currently Approved... collection: Revision of a currently approved collection. (2) The title of the form/collection: Cargo Theft... enforcement agencies. Brief Abstract: This collection is needed to collect information on cargo theft...

  20. The Swedish mutant barley collection

    International Nuclear Information System (INIS)

    1989-01-01

    Full text: The Swedish mutation research programme in barley began about 50 years ago and has mainly been carried out at Svaloev in co-operation with the institute of Genetics at the University of Lund. The collection has been produced from different Swedish high-yielding spring barley varieties, using the following mutagens: X-rays, neutrons, several organic chemical compounds such as ethyleneimine, several sulfonate derivatives and the inorganic chemical mutagen sodium azide. Nearly 10,000 barley mutants are stored in the Nordic Gene Bank and documented in databases developed by Udda Lundquist, Svaloev AB. The collection consists of the following nine categories with 94 different types of mutants: 1. Mutants with changes in the spike and spikelets; 2. Changes in culm length and culm composition; 3. Changes in growth types; 4. Physiological mutants; 5. Changes in awns; 6. Changes in seed size and shape; 7. Changes in leaf blades; 8. Changes in anthocyanin and colour; 9. Resistance to barley powdery mildew. Barley is one of the most thoroughly investigated crops in terms of induction of mutations and mutation genetics. So far, about half of the mutants stored at the Nordic Gene Bank, have been analysed genetically; They constitute, however, only a minority of the 94 different mutant types. The genetic analyses have given valuable insights into the mutation process but also into the genetic architecture of various characters. A number of mutants of two-row barley have been registered and commercially released. One of the earliest released, Mari, an early maturing, daylength neutral, straw stiff mutant, is still grown in Iceland. The Swedish mutation material has been used in Sweden, but also in other countries, such as Denmark, Germany, and USA, for various studies providing a better understanding of the barley genome. The collection will be immensely valuable for future molecular genetical analyses of clone mutant genes. (author)

  1. The Swedish mutant barley collection

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-07-01

    Full text: The Swedish mutation research programme in barley began about 50 years ago and has mainly been carried out at Svaloev in co-operation with the institute of Genetics at the University of Lund. The collection has been produced from different Swedish high-yielding spring barley varieties, using the following mutagens: X-rays, neutrons, several organic chemical compounds such as ethyleneimine, several sulfonate derivatives and the inorganic chemical mutagen sodium azide. Nearly 10,000 barley mutants are stored in the Nordic Gene Bank and documented in databases developed by Udda Lundquist, Svaloev AB. The collection consists of the following nine categories with 94 different types of mutants: 1. Mutants with changes in the spike and spikelets; 2. Changes in culm length and culm composition; 3. Changes in growth types; 4. Physiological mutants; 5. Changes in awns; 6. Changes in seed size and shape; 7. Changes in leaf blades; 8. Changes in anthocyanin and colour; 9. Resistance to barley powdery mildew. Barley is one of the most thoroughly investigated crops in terms of induction of mutations and mutation genetics. So far, about half of the mutants stored at the Nordic Gene Bank, have been analysed genetically; They constitute, however, only a minority of the 94 different mutant types. The genetic analyses have given valuable insights into the mutation process but also into the genetic architecture of various characters. A number of mutants of two-row barley have been registered and commercially released. One of the earliest released, Mari, an early maturing, daylength neutral, straw stiff mutant, is still grown in Iceland. The Swedish mutation material has been used in Sweden, but also in other countries, such as Denmark, Germany, and USA, for various studies providing a better understanding of the barley genome. The collection will be immensely valuable for future molecular genetical analyses of clone mutant genes. (author)

  2. Invariants of collective neutrino oscillations

    International Nuclear Information System (INIS)

    Pehlivan, Y.; Balantekin, A. B.; Kajino, Toshitaka; Yoshida, Takashi

    2011-01-01

    We consider the flavor evolution of a dense neutrino gas by taking into account both vacuum oscillations and self-interactions of neutrinos. We examine the system from a many-body perspective as well as from the point of view of an effective one-body description formulated in terms of the neutrino polarization vectors. We show that, in the single angle approximation, both the many-body picture and the effective one-particle picture possess several constants of motion. We write down these constants of motion explicitly in terms of the neutrino isospin operators for the many-body case and in terms of the polarization vectors for the effective one-body case. The existence of these constants of motion is a direct consequence of the fact that the collective neutrino oscillation Hamiltonian belongs to the class of Gaudin Hamiltonians. This class of Hamiltonians also includes the (reduced) BCS pairing Hamiltonian describing superconductivity. We point out the similarity between the collective neutrino oscillation Hamiltonian and the BCS pairing Hamiltonian. The constants of motion manifest the exact solvability of the system. Borrowing the well established techniques of calculating the exact BCS spectrum, we present exact eigenstates and eigenvalues of both the many-body and the effective one-particle Hamiltonians describing the collective neutrino oscillations. For the effective one-body case, we show that spectral splits of neutrinos can be understood in terms of the adiabatic evolution of some quasiparticle degrees of freedom from a high-density region where they coincide with flavor eigenstates to the vacuum where they coincide with mass eigenstates. We write down the most general consistency equations which should be satisfied by the effective one-body eigenstates and show that they reduce to the spectral split consistency equations for the appropriate initial conditions.

  3. Centralized collection of radioactive wastes

    International Nuclear Information System (INIS)

    1985-06-01

    The standard based upon TGL-190-921/02 applies to solid wastes of the category A1 and the radiation protection groups S1 and S2. The following items are specified: (1) requirements concerning the form and properties of the waste (permitted composition, unpermitted components, type of packaging, maximum weight per package/container), (2) technical conditions for connecting technical means of collection (lifting devices, traffic connections) with customer, and (3) tasks in handing/taking over the waste in relation to waste type (controls, operation of facilities, decontamination, transport documents)

  4. Particle acceleration by collective effects

    International Nuclear Information System (INIS)

    Keefe, D.

    1976-01-01

    Successful acceleration of protons and other ions has been achieved experimentally in this decade by a number of different collective methods. The attainment of very high accelerating fields has been established although so far the acceleration distance has been confined to only a few centimeters. Efforts are in progress to understand the accelerating mechanisms in detail and, as a result, to devise ways of extending considerably the acceleration distance. This paper is intended to review the current progress, expectations, and limitations of the different approaches. (author)

  5. Solar energy collection by antennas

    Energy Technology Data Exchange (ETDEWEB)

    Corkish, R.; Green, M.A.; Puzzer, T. [University of New South Wales, Sydney (Australia). Centre for Advanced Silicon Photovoltaics and Photonics

    2002-12-01

    The idea of collecting solar electromagnetic radiation with antenna-rectifier (rectenna) structures was proposed three decades ago but has not yet been achieved. The idea has been promoted as having potential to achieve efficiency approaching 100% but thermodynamic considerations imply a lower limit of 85.4% for a non-frequency-selective rectenna and 86.8% for one with infinite selectivity, assuming maximal concentration in each case. This paper reviews the history and technical context of solar rectennas and discusses the major issues: thermodynamic efficiency limits, rectifier operation at optical frequencies, harmonics production and electrical noise. (author)

  6. Evaluated data collections from ENSDF

    International Nuclear Information System (INIS)

    Ewbank, W.B.

    1979-01-01

    For several years the Nuclear Data Project has been maintaining an Evaluated Nuclear Structure Data File (ENSDF), which is designed to include critically evaluated values for most nuclear spectroscopic quantities. The information in ENSDF is the same as in the Nuclear Data Sheets, which illustrates two particular output formats (drawings and tables). Spectroscopic information for nuclei with A < 45 is put into ENSDF from the evaluations of Aizenberg-Selove and of Endt and van der Leun. An international network was organized to provide regular revisions of the data file. Computer facilities were developed to retrieve collections of evaluated data for special calculations or detailed examination

  7. Centralized collection of radioactive wastes

    International Nuclear Information System (INIS)

    1985-06-01

    The standard based upon TGL-190-921/03 applies to solid wastes of the category A2 and the radiation protection groups S3, S4 and S5. The following items are specified: (1) requirements concerning the form and properties of the waste (permitted composition, unpermitted components, type of packaging, maximum weight per package/container), (2) technical conditions for connecting technical means of collection (lifting devices, traffic connections) with customer, and (3) tasks in handing/taking over the waste in relation to waste type (controls, operation of facilities, decontamination, transport documents)

  8. Quantum theory of collective phenomena

    CERN Document Server

    Sewell, G L

    2014-01-01

    ""An excellent and competent introduction to the field … [and] … a source of information for the expert."" - Physics Today""This a book of major importance…. I trust that this book will be used as a basis for the teaching of a balanced, modern and rigorous course on statistical mechanics in all universities."" - Bulletin of the London Mathematical Society""This is one of the best introductions to the subject, and it is strongly recommended to anyone interested in collective phenomena."" - Physics Bulletin ""The book may be recommended for students as a well-balanced introduction to this rich s

  9. A Process of Collective Bricolage

    DEFF Research Database (Denmark)

    Kokshagina, Olga; Boxenbaum, Eva; Cartel, Melodie

    Highly diffusable innovations create value across several domains and contribute to the creation of new markets and the disruption of existing industries. For this reason, they are particularly interesting objects of study for innovation management. This research investigates the creation of highly...... bricolage process for open-ended innovation consisting of four steps: a) pre-conditions, b) the repertoire, c) clustering, and d) prototyping. This model deepens our understanding of how collective bricolage, when undertaken in open innovation structures, produces highly diffusable innovations. This insight...

  10. Particle acceleration by collective effects

    International Nuclear Information System (INIS)

    Keefe, D.

    1976-09-01

    Successful acceleration of protons and other ions has been achieved experimentally in this decade by a number of different collective methods. The attainment of very high accelerating fields has been established although so far the acceleration distance has been confined to only a few centimeters. Efforts are in progress to understand the accelerating mechanisms in detail and, as a result, to devise ways of extending considerably the acceleration distance. A review is given of the current progress, expectations, and limitations of the different approaches

  11. Collection Metadata Solutions for Digital Library Applications

    Science.gov (United States)

    Hill, Linda L.; Janee, Greg; Dolin, Ron; Frew, James; Larsgaard, Mary

    1999-01-01

    Within a digital library, collections may range from an ad hoc set of objects that serve a temporary purpose to established library collections intended to persist through time. The objects in these collections vary widely, from library and data center holdings to pointers to real-world objects, such as geographic places, and the various metadata schemas that describe them. The key to integrated use of such a variety of collections in a digital library is collection metadata that represents the inherent and contextual characteristics of a collection. The Alexandria Digital Library (ADL) Project has designed and implemented collection metadata for several purposes: in XML form, the collection metadata "registers" the collection with the user interface client; in HTML form, it is used for user documentation; eventually, it will be used to describe the collection to network search agents; and it is used for internal collection management, including mapping the object metadata attributes to the common search parameters of the system.

  12. 78 FR 69095 - Agency Information Collection Activities; Proposed Collection; Comment Request; Food Canning...

    Science.gov (United States)

    2013-11-18

    ...] Agency Information Collection Activities; Proposed Collection; Comment Request; Food Canning... or we) is extending the comment period for the information collection entitled ``Food Canning... a proposed collection of information related to ``Food Canning Establishment Registration, Process...

  13. 78 FR 13057 - Agency Information Collection Activities; Information Collection; IT Dashboard Feedback Mechanism

    Science.gov (United States)

    2013-02-26

    ... Information Collection Activities; Information Collection; IT Dashboard Feedback Mechanism AGENCY: Office of... previously approved information collection requirement regarding IT Dashboard Feedback Mechanism. DATES... Collection 3090- 0285, IT Dashboard Feedback Mechanism, by any of the following methods: Regulations.gov...

  14. 78 FR 74175 - Agency Information Collection Activities: Proposed Collection; Comment Request; Generic Clearance...

    Science.gov (United States)

    2013-12-10

    ... precision requirements or power calculations that justify the proposed sample size, the expected response...: Proposed Collection; Comment Request; Generic Clearance for the Collection of Qualitative Feedback on... Information Collection Request (Generic ICR): ``Generic Clearance for the Collection of Qualitative Feedback...

  15. 78 FR 18988 - Agency Information Collection Activities; Proposed Collection; Comment Request

    Science.gov (United States)

    2013-03-28

    ... techniques or other forms of information technology to minimize the information collection burden. Information Collection Request Title: The Health Education Assistance Loan (HEAL) Program: Physician's... Information Collection Activities; Proposed Collection; Comment Request ACTION: Notice. SUMMARY: In compliance...

  16. 36 CFR 12.12 - Information collection.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Information collection. 12.12... NATIONAL CEMETERY REGULATIONS § 12.12 Information collection. The information collection requirements... U.S.C. 3501 et seq., and assigned clearance number 1024-0026. The information is being collected to...

  17. 29 CFR 20.84 - Collections.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Collections. 20.84 Section 20.84 Labor Office of the Secretary of Labor FEDERAL CLAIMS COLLECTION Salary Offset § 20.84 Collections. (a) Whenever feasible, and... 15 percent of disposable pay for an officially established pay interval, collection must be made in...

  18. Collection shield for ion separation apparatus

    International Nuclear Information System (INIS)

    Ford, K.L.; Pugh, R.A.

    1981-01-01

    The ion separation electrodes in isotope separation apparatus are provided with removable collection shields to collect neutral particles which would normally pass through the ionization region. A preferred collection shield comprises a u-shaped section for clipping onto the leading edge of an electrode and a pair of flanges projecting substantially perpendicular to the clipping section for collecting neutral particles

  19. Abundance of sea cucumbers on the ecosystem of seagrasses Inunggeh island, Tapanuli Tengah Regency North Sumatera Province

    Science.gov (United States)

    Wisesa, M. M.; Bakti, D.; Fadhilah, A.

    2018-02-01

    Unggeh Island is one area that has the potential of Sea Cucumber in the North Sumatra. Sea cucumbers have an important role in ecosystem waters, namely as a deposit feeder. Sea cucumbers can live in shallow waters, such as seagrass ecosystems. The purpose of this study is to knowing the abundance of sea cucumbers in the seagrass ecosystems on the island of Unggeh and to knowing the type of Sea Cucumber. The method used is a transect quadrant method with a size of 5x5 meters, on a transect line with a length of 100 meters. Sampling was done at three points observations, station 1 was at coordinate point 01°34’26,88 "LU and 098°45’40,25" BT, station 2 was at coordinate point 01°34’32,71 "LU and 098°45’37, 58 "BT, station 3 is at the coordinate point 01°34’24,22" LU and 098°45’38,06 "BT. The type of sea cucumber found in the seagrass ecosystem on the Unggeh island Actinopyga ecinites, A. Miliaris, Holothuria scabra. The density at station 1 was 0.16 ind / m2, at station II a density was0.12 ind / m2, at station III a density was 0.08 ind / m2, and the total density at the research location was 0, 32 ind / m2.

  20. Profiling bacterial communities associated with sediment-based aquaculture bioremediation systems under contrasting redox regimes

    Science.gov (United States)

    Robinson, Georgina; Caldwell, Gary S.; Wade, Matthew J.; Free, Andrew; Jones, Clifford L. W.; Stead, Selina M.

    2016-12-01

    Deposit-feeding invertebrates are proposed bioremediators in microbial-driven sediment-based aquaculture effluent treatment systems. We elucidate the role of the sediment reduction-oxidation (redox) regime in structuring benthic bacterial communities, having direct implications for bioremediation potential and deposit-feeder nutrition. The sea cucumber Holothuria scabra was cultured on sediments under contrasting redox regimes; fully oxygenated (oxic) and redox stratified (oxic-anoxic). Taxonomically, metabolically and functionally distinct bacterial communities developed between the redox treatments with the oxic treatment supporting the greater diversity; redox regime and dissolved oxygen levels were the main environmental drivers. Oxic sediments were colonised by nitrifying bacteria with the potential to remediate nitrogenous wastes. Percolation of oxygenated water prevented the proliferation of anaerobic sulphate-reducing bacteria, which were prevalent in the oxic-anoxic sediments. At the predictive functional level, bacteria within the oxic treatment were enriched with genes associated with xenobiotics metabolism. Oxic sediments showed the greater bioremediation potential; however, the oxic-anoxic sediments supported a greater sea cucumber biomass. Overall, the results indicate that bacterial communities present in fully oxic sediments may enhance the metabolic capacity and bioremediation potential of deposit-feeder microbial systems. This study highlights the benefits of incorporating deposit-feeding invertebrates into effluent treatment systems, particularly when the sediment is oxygenated.

  1. Control of collective network chaos.

    Science.gov (United States)

    Wagemakers, Alexandre; Barreto, Ernest; Sanjuán, Miguel A F; So, Paul

    2014-06-01

    Under certain conditions, the collective behavior of a large globally-coupled heterogeneous network of coupled oscillators, as quantified by the macroscopic mean field or order parameter, can exhibit low-dimensional chaotic behavior. Recent advances describe how a small set of "reduced" ordinary differential equations can be derived that captures this mean field behavior. Here, we show that chaos control algorithms designed using the reduced equations can be successfully applied to imperfect realizations of the full network. To systematically study the effectiveness of this technique, we measure the quality of control as we relax conditions that are required for the strict accuracy of the reduced equations, and hence, the controller. Although the effects are network-dependent, we show that the method is effective for surprisingly small networks, for modest departures from global coupling, and even with mild inaccuracy in the estimate of network heterogeneity.

  2. The Collective Practice of Calculation

    DEFF Research Database (Denmark)

    Schrøder, Ida

    The calculation of costs plays an increasingly large role in the decision-making processes of public sector human service organizations. This has brought scholars of management accounting to investigate the relationship between caring professions and demands to make economic entities of the service...... productions as either a process of hybridization or conflict. With these approaches, though, they fail to interrogate the possibility that professional action might not be either the one or the other, but entail a broad variety of relationships between calculations and judgements. This paper elaborates...... and judgement to reach decisions to invest in social services. The line is not drawn between the two, but between the material arrangements that make decisions possible. This implies that the insisting on qualitatively based decisions gives the professionals agency to collectively engage in practical...

  3. Real time psychrometric data collection

    International Nuclear Information System (INIS)

    McDaniel, K.H.

    1996-01-01

    Eight Mine Weather Stations (MWS) installed at the Waste Isolation Pilot Plant (WIPP) to monitor the underground ventilation system are helping to simulate real-time ventilation scenarios. Seasonal weather extremes can result in variations of Natural Ventilation Pressure (NVP) which can significantly effect the ventilation system. The eight MWS(s) (which previously collected and stored temperature, barometric pressure and relative humidity data for subsequent NVP calculations) were upgraded to provide continuous real-time data to the site wide Central monitoring System. This data can now be utilized by the ventilation engineer to create realtime ventilation simulations and trends which assist in the prediction and mitigation of NVP and psychrometric related events

  4. MAD data collection - current trends

    International Nuclear Information System (INIS)

    Dementieva, I.; Evans, G.; Joachimiak, A.; Sanishvili, R.; Walsh, M. A.

    1999-01-01

    The multi-wavelength anomalous diffraction, or MAD, method of determining protein structure is becoming routine in protein crystallography. An increase in the number of tuneable synchrotrons beamlines coupled with the widespread availability position-sensitive X-ray detectors based on charged-coupled devices and having fast readout raised MAD structure determination to a new and exciting level. Ultra-fast MAD data collection is now possible. Recognition of the value of selenium for phasing protein structures and improvement of methods for incorporating selenium into proteins in the form of selenomethionine have attracted greater interest in the MAD method. Recent developments in crystallographic software are complimenting the above advances, paving the way for rapid protein structure determination. An overview of a typical MAD experiment is described here, with emphasis on the rates and quality of data acquisition now achievable at beamlines developed at third-generation synchrotrons sources

  5. Collective Functionality through Bacterial Individuality

    Science.gov (United States)

    Ackermann, Martin

    According to the conventional view, the properties of an organism are a product of nature and nurture - of its genes and the environment it lives in. Recent experiments with unicellular organisms have challenged this view: several molecular mechanisms generate phenotypic variation independently of environmental signals, leading to variation in clonal groups. My presentation will focus on the causes and consequences of this microbial individuality. Using examples from bacterial genetic model systems, I will first discuss different molecular and cellular mechanisms that give rise to bacterial individuality. Then, I will discuss the consequences of individuality, and focus on how phenotypic variation in clonal populations of bacteria can promote interactions between individuals, lead to the division of labor, and allow clonal groups of bacteria to cope with environmental uncertainty. Variation between individuals thus provides clonal groups with collective functionality.

  6. Devices for collecting chemical compounds

    Science.gov (United States)

    Scott, Jill R; Groenewold, Gary S

    2013-12-24

    A device for sampling chemical compounds from fixed surfaces and related methods are disclosed. The device may include a vacuum source, a chamber and a sorbent material. The device may utilize vacuum extraction to volatilize the chemical compounds from a fixed surface so that they may be sorbed by the sorbent material. The sorbent material may then be analyzed using conventional thermal desorption/gas chromatography/mass spectrometry (TD/GC/MS) instrumentation to determine presence of the chemical compounds. The methods may include detecting release and presence of one or more chemical compounds and determining the efficacy of decontamination. The device may be useful in collection and analysis of a variety of chemical compounds, such as residual chemical warfare agents, chemical attribution signatures and toxic industrial chemicals.

  7. Instrument to collect fogwater for chemical analysis

    OpenAIRE

    Jacob, Daniel J.; Waldman, Jed M.; Haghi, Mehrdad; Hoffmann, Michael R.; Flagan, Richard C.

    1985-01-01

    An instrument is presented which collects large samples of ambient fogwater by impaction of droplets on a screen. The collection efficiency of the instrument is determined as a function of droplet size, and it is shown that fog droplets in the range 3–100-µm diameter are efficiently collected. No significant evaporation or condensation occurs at any stage of the collection process. Field testing indicates that samples collected are representative of the ambient fogwater. The instrument may ea...

  8. Crowdsourcing metrics of digital collections

    Directory of Open Access Journals (Sweden)

    Tuula Pääkkönen

    2015-12-01

    Full Text Available In the National Library of Finland (NLF there are millions of digitized newspaper and journal pages, which are openly available via the public website  http://digi.kansalliskirjasto.fi. To serve users better, last year the front end was completely overhauled with its main aim in crowdsourcing features, e.g., by giving end-users the opportunity to create digital clippings and a personal scrapbook from the digital collections. But how can you know whether crowdsourcing has had an impact? How much crowdsourcing functionalities have been used so far? Did crowdsourcing work? In this paper the statistics and metrics of a recent crowdsourcing effort are analysed across the different digitized material types (newspapers, journals, ephemera. The subjects, categories and keywords given by the users are analysed to see which topics are the most appealing. Some notable public uses of the crowdsourced article clippings are highlighted. These metrics give us indications on how the end-users, based on their own interests, are investigating and using the digital collections. Therefore, the suggested metrics illustrate the versatility of the information needs of the users, varying from citizen science to research purposes. By analysing the user patterns, we can respond to the new needs of the users by making minor changes to accommodate the most active participants, while still making the service more approachable for those who are trying out the functionalities for the first time. Participation in the clippings and annotations can enrich the materials in unexpected ways and can possibly pave the way for opportunities of using crowdsourcing more also in research contexts. This creates more opportunities for the goals of open science since source data becomes ­available, making it possible for researchers to reach out to the general public for help. In the long term, utilizing, for example, text mining methods can allow these different end-user segments to

  9. Collective irrationality and positive feedback.

    Science.gov (United States)

    Nicolis, Stamatios C; Zabzina, Natalia; Latty, Tanya; Sumpter, David J T

    2011-04-26

    Recent experiments on ants and slime moulds have assessed the degree to which they make rational decisions when presented with a number of alternative food sources or shelter. Ants and slime moulds are just two examples of a wide range of species and biological processes that use positive feedback mechanisms to reach decisions. Here we use a generic, experimentally validated model of positive feedback between group members to show that the probability of taking the best of options depends crucially on the strength of feedback. We show how the probability of choosing the best option can be maximized by applying an optimal feedback strength. Importantly, this optimal value depends on the number of options, so that when we change the number of options the preference of the group changes, producing apparent "irrationalities". We thus reinterpret the idea that collectives show "rational" or "irrational" preferences as being a necessary consequence of the use of positive feedback. We argue that positive feedback is a heuristic which often produces fast and accurate group decision-making, but is always susceptible to apparent irrationality when studied under particular experimental conditions.

  10. Collective irrationality and positive feedback.

    Directory of Open Access Journals (Sweden)

    Stamatios C Nicolis

    Full Text Available Recent experiments on ants and slime moulds have assessed the degree to which they make rational decisions when presented with a number of alternative food sources or shelter. Ants and slime moulds are just two examples of a wide range of species and biological processes that use positive feedback mechanisms to reach decisions. Here we use a generic, experimentally validated model of positive feedback between group members to show that the probability of taking the best of options depends crucially on the strength of feedback. We show how the probability of choosing the best option can be maximized by applying an optimal feedback strength. Importantly, this optimal value depends on the number of options, so that when we change the number of options the preference of the group changes, producing apparent "irrationalities". We thus reinterpret the idea that collectives show "rational" or "irrational" preferences as being a necessary consequence of the use of positive feedback. We argue that positive feedback is a heuristic which often produces fast and accurate group decision-making, but is always susceptible to apparent irrationality when studied under particular experimental conditions.

  11. Collected radiochemical and geochemical procedures

    Energy Technology Data Exchange (ETDEWEB)

    Kleinberg, J [comp.

    1990-05-01

    This revision of LA-1721, 4th Ed., Collected Radiochemical Procedures, reflects the activities of two groups in the Isotope and Nuclear Chemistry Division of the Los Alamos National Laboratory: INC-11, Nuclear and radiochemistry; and INC-7, Isotope Geochemistry. The procedures fall into five categories: I. Separation of Radionuclides from Uranium, Fission-Product Solutions, and Nuclear Debris; II. Separation of Products from Irradiated Targets; III. Preparation of Samples for Mass Spectrometric Analysis; IV. Dissolution Procedures; and V. Geochemical Procedures. With one exception, the first category of procedures is ordered by the positions of the elements in the Periodic Table, with separate parts on the Representative Elements (the A groups); the d-Transition Elements (the B groups and the Transition Triads); and the Lanthanides (Rare Earths) and Actinides (the 4f- and 5f-Transition Elements). The members of Group IIIB-- scandium, yttrium, and lanthanum--are included with the lanthanides, elements they resemble closely in chemistry and with which they occur in nature. The procedures dealing with the isolation of products from irradiated targets are arranged by target element.

  12. Collective decisions among bacterial viruses

    Science.gov (United States)

    Joh, Richard; Mileyko, Yuriy; Voit, Eberhard; Weitz, Joshua

    2010-03-01

    For many temperate bacteriophages, the decision of whether to kill hosts or enter a latent state depends on the multiplicity of infection. In this talk, I present a quantitative model of gene regulatory dynamics to describe how phages make collective decisions within host cells. Unlike most previous studies, the copy number of viral genomes is treated as a variable. In the absence of feedback loops, viral mRNA transcription is expected to be proportional to the viral copy number. However, when there are nonlinear feedback loops in viral gene regulation, our model shows that gene expression patterns are sensitive to changes in viral copy number and there can be a domain of copy number where the system becomes bistable. Hence, the viral copy number is a key control parameter determining host cell fates. This suggests that bacterial viruses can respond adaptively to changes in population dynamics, and can make alternative decisions as a bet-hedging strategy. Finally, I present a stochastic version of viral gene regulation and discuss speed-accuracy trade-offs in the context of cell fate determination by viruses.

  13. Collecting Currents with Water Turbines

    Science.gov (United States)

    Allen, J.; Allen, S.

    2017-12-01

    Our science poster is inspired by Florida Atlantic University's recent program to develop three types of renewable energy. They are using water turbines and the Gulf Stream Current to produce a renewable energy source. Wave, tidal and current driven energy. Our poster is called "Collecting Currents with Water Turbines". In our science poster, the purpose was to see which turbine design could produce the most power. We tested three different variables, the number of blades (four, six, and eight), the material of the blades and the shape of the blades. To test which number of blades produced the most power we cut slits into a cork. We used plastic from a soda bottle to make the blades and then we put the blades in the cork to make the turbines. We observed each blade and how much time it took for the water turbines to pull up 5 pennies. Currently water turbines are used in dams to make hydroelectric energy. But with FAU we could understand how to harness the Gulf Stream current off Florida's coast we could soon have new forms of renewable energy.

  14. A national collection on the drawing board

    DEFF Research Database (Denmark)

    Svenningsen, Jesper

    2017-01-01

    Even before there was talk of a central collection of drawings and fine-art prints – what would eventually become the Royal Collection of Graphic Art in 1835 (Den kgl. Kobberstiksamling, formerly known as The Royal Collection of Prints and Drawings) – Danish drawings were already being collected...... on a grand scale. During the period 1810 to 1832, the Royal Danish Academy of Fine Arts built a large collection of recent Danish drawings, and the director of the Royal Picture Gallery, J.C. Spengler, personally collected sheets by older artists. This article delves into the history of these two...

  15. A Survey of Collective Intelligence

    Science.gov (United States)

    Wolpert, David H.; Tumer, Kagan

    1999-01-01

    This chapter presents the science of "COllective INtelligence" (COIN). A COIN is a large multi-agent systems where: i) the agents each run reinforcement learning (RL) algorithms; ii) there is little to no centralized communication or control; iii) there is a provided world utility function that, rates the possible histories of tile full system. Tile conventional approach to designing large distributed systems to optimize a world utility does not use agents running RL algorithms. Rather that approach begins with explicit modeling of the overall system's dynamics, followed by detailed hand-tuning of the interactions between the components to ensure that they "cooperate" as far as the world utility is concerned. This approach is labor-intensive, often results in highly non-robust systems, and usually results in design techniques that, have limited applicability. In contrast, with COINs we wish to solve the system design problems implicitly, via the 'adaptive' character of the RL algorithms of each of the agents. This COIN approach introduces an entirely new, profound design problem: Assuming the RL algorithms are able to achieve high rewards, what reward functions for the individual agents will, when pursued by those agents, result in high world utility? In other words, what reward functions will best ensure that we do not have phenomena like the tragedy of the commons, or Braess's paradox? Although still very young, the science of COINs has already resulted in successes in artificial domains, in particular in packet-routing, the leader-follower problem, and in variants of Arthur's "El Farol bar problem". It is expected that as it matures not only will COIN science expand greatly the range of tasks addressable by human engineers, but it will also provide much insight into already established scientific fields, such as economics, game theory, or population biology.

  16. Collective effects in diffuse ambiplasma

    International Nuclear Information System (INIS)

    Rogers, S.H.

    1981-01-01

    All laboratory evidence to date indicates that particles materialize from energy only in matter-antimatter pairs and, conversely, disappear only when such pairs annihilate. This observed law suggests that early in the Big Bang, when material and radiation were in equilibrium, the universe contained equal amounts of matter and antimatter. Since the earth, the solar system, and the neighboring stars, as implied by cosmic ray data, appear to be exclusively matter, their antimatter counterparts should by all rights exist elsewhere. Astronomical observations, however, have revealed no signs of antimatter on a large scale; in particular, the energetic gamma rays that would originate in the boundaries between matter and antimatter are not observed. The dilemma is resolved if the laboratory law is violated even minutely, a possibility that is now being tested by experiment. On the other hand, the dilemma disappears if the matter and antimatter exist in separate regions without, in effect, interacting. In this case there must be a repulsive force between the matter and antimatter that prevents them from mixing; in particular, such a force is crucial to the coexistence of large, diffuse regions akin to the galactic interstellar clouds. Predictions of the outcome of matter-antimatter contact are usually based entirely on binary collisions. This disseration explores the possibility that collective effects dominate interactions between diffuse matter and antimatter and give rise to the necessary repulsive force. Some years ago, a mechanism was proposed in which a thin, magnetized layer of ambiplasma kept matter and antimatter plasmas separated with the energy released in occasional annihilation

  17. 75 FR 1084 - Agency Information Collection Activities: New Collection, Comments Requested

    Science.gov (United States)

    2010-01-08

    ... be submitting the following information collection request to the Office of Management and Budget..., mechanical, or other technological collection techniques of other forms of information technology, e.g... information collection: New collection. (2) The title of the form/collection: InfraGard Knowledge/Skills...

  18. 77 FR 49831 - Agency Information Collection Activities; Proposed Collection, Comments Requested; Customer...

    Science.gov (United States)

    2012-08-17

    ... Collection Activities; Proposed Collection, Comments Requested; Customer Satisfaction Assessment ACTION: 30... Information Collection 1. Type of information collection: Customer survey. 2. The title of the form/collection: Customer Satisfaction Assessment. 3. The agency form number, if any, and the applicable component of the...

  19. 77 FR 36293 - Agency Information Collection Activities; Proposed Collection, Comments Requested: Customer...

    Science.gov (United States)

    2012-06-18

    ... Collection Activities; Proposed Collection, Comments Requested: Customer Satisfaction Assessment ACTION: 60... Information Collection 1. Type of information collection: Customer survey. 2. The title of the form/collection: Customer Satisfaction Assessment. 3. The agency form number, if any, and the applicable component of the...

  20. 77 FR 54612 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Notice of...

    Science.gov (United States)

    2012-09-05

    ... Information Collection Activities: Proposed Collection; Comments Requested: Notice of Appeal to the Board of Immigration Appeals From a Decision of a DHS Officer ACTION: 30-Day notice of information collection. The... This Information Collection (1) Type of Information Collection: Extension of a Currently Approved...

  1. 77 FR 39261 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Notice of...

    Science.gov (United States)

    2012-07-02

    ... Collection; Comments Requested: Notice of Appeal to the Board of Immigration Appeals From a Decision of a DHS.... Overview of This Information Collection (1) Type of Information Collection: Revision of a currently approved collection. (2) Title of the Form/Collection: Notice of Appeal to the Board of Immigration Appeals...

  2. 76 FR 70754 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Notice of...

    Science.gov (United States)

    2011-11-15

    ... Collection; Comments Requested; Notice of Appeal From a Decision of an Immigration Judge ACTION: 60-Day... This Information Collection (1) Type of Information Collection: Revision of a currently approved collection. (2) Title of the Form/Collection: Notice of Appeal from a Decision of an Immigration Judge. (3...

  3. AgSat Imagery Collection Footprints

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — The AgSat Imagery Collection Footprints map shows the imagery footprints which have been collected under the USDA satellite blanket purchase agreement. Click on a...

  4. 77 FR 20616 - Agency Information Collection Extension

    Science.gov (United States)

    2012-04-05

    .... EIA's petroleum marketing survey forms collect volumetric and price information needed for determining... DEPARTMENT OF ENERGY Energy Information Administration Agency Information Collection Extension AGENCY: U.S. Energy Information Administration (EIA), Department of Energy. ACTION: Agency Information...

  5. Solid Waste and Recycling Collection Routes

    Data.gov (United States)

    Town of Cary, North Carolina — View the Town’s current collection schedule, including pick-up day and recycling week designation.The Town of Cary collects garbage weekly at the curb on the same...

  6. 76 FR 44892 - Information Collection; Locatable Minerals

    Science.gov (United States)

    2011-07-27

    ... DEPARTMENT OF AGRICULTURE Forest Service Information Collection; Locatable Minerals AGENCY: Forest... on the extension of a currently approved information collection, Locatable Minerals-36 CFR part 228...: Comments concerning this notice should be addressed to: USDA, Forest Service, Minerals and Geology...

  7. Technology scan for electronic toll collection.

    Science.gov (United States)

    2008-06-01

    The purpose of this project was to identify and assess available technologies and methodologies for electronic toll collection (ETC) and to develop recommendations for the best way(s) to implement toll collection in the Louisville metropolitan area. ...

  8. Collective Action of 'Others' in Sydney

    Directory of Open Access Journals (Sweden)

    Walter F Lalich

    2006-02-01

    Full Text Available Various ethnic communities undertake collective action to satisfy their social needs in a place of settlement. Collectively created social resources are representative of the patterns of fragmented ethnic collective actions that differ in their capability to appropriate human and material resources, orientation, outcome, form and intensity. Through collective creation of social space migrants add a new and dynamic dimension to the social environment. During the dramatic post-1945 changes in Sydney demographic and cultural structures, over 450 “other” (ethnic collectives mobilised through grass-roots efforts their scarce resources and created needed collective goods, such as places of worship, clubs, schools, age care facilities. In this way, through creation of communal roots ethnic collectives navigate the path between exclusion and the various forms of inclusion in a dynamic culturally diverse society. Ethnic communal places signify collective conscience, participation, and the embeddedness of transplanted cultures in a transforming social environment and transnational social space.

  9. Presidential Libraries Museum Collection Management Database

    Data.gov (United States)

    National Archives and Records Administration — MCMD serves as a descriptive catalog for the Presidential Libraries museum collections, and also supports a full range of museum collections management processes...

  10. 75 FR 77008 - Notice of Information Collection

    Science.gov (United States)

    2010-12-10

    ... efforts to extend the use of information technology to more Government processes via the Internet... NATIONAL AERONAUTICS AND SPACE ADMINISTRATION [NOTICE (10-156)] Notice of Information Collection AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of information collection...

  11. 75 FR 64357 - Notice of Information Collection

    Science.gov (United States)

    2010-10-19

    ... efforts to extend the use of information technology to more Government processes via the Internet... NATIONAL AERONAUTICS AND SPACE ADMINISTRATION [Notice: (10-128)] Notice of Information Collection AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of information collection...

  12. Measuring collections effort improves cash performance.

    Science.gov (United States)

    Shutts, Joe

    2009-09-01

    Having a satisfied work force can lead to an improved collections effort. Hiring the right people and training them ensures employee engagement. Measuring collections effort and offering incentives is key to revenue cycle success.

  13. 78 FR 29123 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-05-17

    ... INFORMATION: Summary of Information Collection In the case of members of the public, this system collects... data, exposure data, facility inspection data, assessment/evaluation data, OSHA activity data...

  14. 75 FR 42726 - Proposed Agency Information Collection

    Science.gov (United States)

    2010-07-22

    ... Information Collection Request Title: OE Recovery Act Financial Assistance Grants, OMB Control No. 1910-5149... respondents, including through the use of automated collection techniques or other forms of information...-5149; (2) Information Collection Request Title: OE Recovery Act Financial Assistance Grants; (3) Type...

  15. 75 FR 29333 - Proposed Agency Information Collection

    Science.gov (United States)

    2010-05-25

    ... emergency Information Collection Request Title: OE Recovery Act Financial Assistance Grants, OMB Control No... of information on respondents, including through the use of automated collection techniques or other...-5149; (2) Information Collection Request Title: OE Recovery Act Financial Assistance Grants; (3) Type...

  16. 30 CFR 746.10 - Information collection.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Information collection. 746.10 Section 746.10... LANDS PROGRAM REVIEW AND APPROVAL OF MINING PLANS § 746.10 Information collection. The information... U.S.C. 3507 and assigned clearance number 1029-0026. The information is being collected to determine...

  17. 7 CFR 1280.220 - Collections.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Collections. 1280.220 Section 1280.220 Agriculture... INFORMATION ORDER Lamb Promotion, Research, and Information Order Assessments § 1280.220 Collections. (a) Each first handler and each exporter responsible for the collection of assessments under this subpart shall...

  18. Navigating Change and Transformation in Collection Development

    Science.gov (United States)

    Kleszynski, Margaret A.

    2012-01-01

    For nearly two decades, librarians have been noting and writing about transformational change in collection development and subsequently predicting future directions for libraries in terms of building digital collections. This paradigm shift caused by the incorporation of more and more electronic resources into existing library collections and…

  19. Exploring Collective Mathematical Creativity in Elementary School

    Science.gov (United States)

    Levenson, Esther

    2011-01-01

    This study combines theories related to collective learning and theories related to mathematical creativity to investigate the notion of collective mathematical creativity in elementary school classrooms. Collective learning takes place when mathematical ideas and actions, initially stemming from an individual, are built upon and reworked,…

  20. Emissions from US waste collection vehicles

    International Nuclear Information System (INIS)

    Maimoun, Mousa A.; Reinhart, Debra R.; Gammoh, Fatina T.; McCauley Bush, Pamela

    2013-01-01

    Highlights: ► Life-cycle emissions for alternative fuel technologies. ► Fuel consumption of alternative fuels for waste collection vehicles. ► Actual driving cycle of waste collection vehicles. ► Diesel-fueled waste collection vehicle emissions. - Abstract: This research is an in-depth environmental analysis of potential alternative fuel technologies for waste collection vehicles. Life-cycle emissions, cost, fuel and energy consumption were evaluated for a wide range of fossil and bio-fuel technologies. Emission factors were calculated for a typical waste collection driving cycle as well as constant speed. In brief, natural gas waste collection vehicles (compressed and liquid) fueled with North-American natural gas had 6–10% higher well-to-wheel (WTW) greenhouse gas (GHG) emissions relative to diesel-fueled vehicles; however the pump-to-wheel (PTW) GHG emissions of natural gas waste collection vehicles averaged 6% less than diesel-fueled vehicles. Landfill gas had about 80% lower WTW GHG emissions relative to diesel. Biodiesel waste collection vehicles had between 12% and 75% lower WTW GHG emissions relative to diesel depending on the fuel source and the blend. In 2011, natural gas waste collection vehicles had the lowest fuel cost per collection vehicle kilometer travel. Finally, the actual driving cycle of waste collection vehicles consists of repetitive stops and starts during waste collection; this generates more emissions than constant speed driving

  1. On a collection of Opisthobranchia from Turkey

    NARCIS (Netherlands)

    Swennen, C.

    1961-01-01

    This paper deals with the Opisthobranchia collected by the Netherlands Biological Expedition to Turkey 1959. The collection is deposited in the Rijksmuseum van Natuurlijke Historie at Leiden. The material was chiefly collected in three areas, viz. the Bay of Antalya and the Bay of Mersin (formerly

  2. Problems of collection development in special libraries

    OpenAIRE

    Sridhar, M. S.

    1995-01-01

    Discusses factors affecting collection development, scope, definition and process of collection development, highlights importance of collection development policy manual, presents peculiar circumstances and background of document acquisition transaction in libraries, points out many problems relating to document selection and document procurement processes. Discusses various types of vendor-controlled order plans with their merits and demerits. In conclusion other problems concerned with te...

  3. 22 CFR 34.10 - Collection methods.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Collection methods. 34.10 Section 34.10 Foreign... Collection methods. Upon completion of notice and provision of all due process rights as listed in 34.8(b) of... collect the debt by one or more of the following methods: (a) Administrative offset. (1) Payments...

  4. 76 FR 56823 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-09-14

    ... forth several information collection requirements. Rule 6e-2 provides a separate account with an... the collection of information on respondents, including through the use of automated collection..., Copies Available From: Securities and Exchange Commission, Office of Investor Education and Advocacy...

  5. 78 FR 33469 - Proposed Collection: Comment Request

    Science.gov (United States)

    2013-06-04

    ...: 1535-0127. Abstract: The information is requested to establish an investor account, issue and redeem... burden of the collection of information on respondents, including through the use of automated collection... agencies to take this opportunity to comment on proposed and/or continuing information collections, as...

  6. Collection Development Policies in Community College Libraries.

    Science.gov (United States)

    Mesling, Chris Fowler

    2003-01-01

    Emphasizes the need for collection development policy in community college academic libraries. Highlights areas of resource sharing, community analysis, and collection assessment. Also provides an overview of how to create a collection for development policy, and recommends books on writing such policy. Includes model policy statements. (NB)

  7. Osmosis in Cortical Collecting Tubules

    Science.gov (United States)

    Schafer, James A.; Troutman, Susan L.; Andreoli, Thomas E.

    1974-01-01

    The present experiments were designed to evaluate the effects of varying the osmolality of luminal solutions on the antidiuretic hormone (ADH)-independent water and solute permeability properties of isolated rabbit cortical collecting tubules. In the absence of ADH, the osmotic water permeability coefficient (cm s–1) Pfl→b, computed from volume flows from hypotonic lumen to isotonic bath, was 20 ± 4 x 10–4 (SEM); the value of Pfb→l in the absence of ADH, computed from volume flows from isotonic bath to hypertonic lumen, was 88 ± 15 x 10–4 cm s–1. We also measured apparent urea permeability coefficients (cm s–1) from 14C-urea fluxes from lumen to bath (P DDurea l→b) and from bath to lumen (P DDurea b→l). For hypotonic luminal solutions and isotonic bathing solutions, P DDurea l→b was 0.045 ± 0.004 x 10–4 and was unaffected by ADH. The ADH-independent values of P DDurea l→b and P urea b→l were, respectively, 0.216 ± 0.022 x 10–4 cm s–1 and 0.033 ± 0.002 x 10–4 cm s–1 for isotonic bathing solutions and luminal solutions made hypertonic with urea, i.e., there was an absolute increase in urea permeability and asymmetry of urea fluxes. Significantly, P DDurea l→b did not rise when luminal hypertonicity was produced by sucrose; and, bathing fluid hypertonicity did not alter tubular permeability to water or to urea. We interpret these data to indicate that luminal hypertonicity increased the leakiness of tight junctions to water and urea but not sucrose. Since the value of Pfb→l in the absence of ADH, when tight junctions were open to urea, was approximately half of the value of Pfl→b in the presence of ADH, when tight junctions were closed to urea, we conclude that tight junctions are negligible paracellular shunts for lumen to bath osmosis with ADH. These findings, together with those in the preceding paper, are discussed in terms of a solubility-diffusion model for water permeation in which ADH increases water solubility in

  8. 76 FR 17423 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2011-03-29

    ... Services Administration publishes summaries of proposed data collection projects for public comment... DEPARTMENT OF HEALTH AND HUMAN SERVICES Health Resources and Services Administration Agency Information Collection Activities: Proposed Collection; Comment Request In compliance with the requirements of...

  9. 76 FR 50993 - Agency Information Collection Activities: Proposed Collection; Comment Request-Generic Clearance...

    Science.gov (United States)

    2011-08-17

    ... interviews, respondent debriefing, pilot surveys) to quickly test and implement new questions for research...: Proposed Collection; Comment Request--Generic Clearance to Conduct Methodological Testing, Surveys, Focus... proposed information collection. This information collection will conduct research by methodological...

  10. 76 FR 77852 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2011-12-14

    ... teaching and learning. Method of Collection Teachers who have registered to use NSDL resources through... NATIONAL SCIENCE FOUNDATION Agency Information Collection Activities: Proposed Collection; Comment Request AGENCY: National Science Foundation. ACTION: Notice. SUMMARY: The National Science Foundation (NSF...

  11. 77 FR 5017 - Agency Information Collection Activities; Proposed Collection; Comment Request

    Science.gov (United States)

    2012-02-01

    ... approximate in content and volume the advertising disclosures discussed above. Accordingly, staff estimates a... FEDERAL TRADE COMMISSION Agency Information Collection Activities; Proposed Collection; Comment Request AGENCY: Federal Trade Commission. ACTION: Notice. SUMMARY: The information collection requirements...

  12. 77 FR 36544 - Agency Information Collection Activities; Proposed Collection; Comment Request; Survey on the...

    Science.gov (United States)

    2012-06-19

    ... 2013 with the initial data collection for select restaurant facility types, followed by the initial... (baseline collection period data collection survey measurement) period Restaurants Full Service 2013 2016 2019 Restaurants Fast Food Restaurants. Institutional Foodservice........ Hospitals 2014 2017 2020...

  13. 75 FR 4826 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2010-01-29

    ... collection; Title of Information Collection: End Stage Renal Disease Death Notification Public Law 95-292; 42...,768; Total Annual Hours: 41,384. (For policy questions regarding this collection contact Connie Cole...

  14. 77 FR 29352 - Agency Information Collection Activities; Proposed Collection; Comment Request; Irradiation in...

    Science.gov (United States)

    2012-05-17

    ...] Agency Information Collection Activities; Proposed Collection; Comment Request; Irradiation in the... information collection provisions of FDA's requirements for food irradiation processors. DATES: Submit either... of information technology. Irradiation in the Production, Processing, and Handling of Food--21 CFR...

  15. 77 FR 32137 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Strategic...

    Science.gov (United States)

    2012-05-31

    ...] Agency Information Collection Activities: Proposed Collection; Comments Requested; Strategic Planning... Form/Collection: Strategic Planning Environmental Assessment Outreach. (3) Agency form number, if any... satisfaction. This act requires that agencies update and revise their strategic plans every three years. The...

  16. 77 FR 25198 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Immigration...

    Science.gov (United States)

    2012-04-27

    ... DEPARTMENT OF JUSTICE Executive Office for Immigration Review [OMB Number 1125-0007] Agency Information Collection Activities: Proposed Collection; Comments Requested: Immigration Practitioner Complaint...), Executive Office for Immigration Review (EOIR) will be submitting the following information collection...

  17. 75 FR 53305 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2010-08-31

    ... proposed information collection project: ``AHRQ Grants Reporting System (GRS).'' In accordance with the... consistent with the AHRQ enterprise architecture model and aligned with AHRQ systems development standards... Information Collection Activities: Proposed Collection; Comment Request AGENCY: Agency for Healthcare Research...

  18. 75 FR 12546 - Agency Information Collection Activities; Proposed Collection; Comment Request; Cosmetic Labeling...

    Science.gov (United States)

    2010-03-16

    ...] Agency Information Collection Activities; Proposed Collection; Comment Request; Cosmetic Labeling... FDA's cosmetic labeling regulations. DATES: Submit written or electronic comments on the collection of... of information technology. Cosmetic Labeling Regulations--21 CFR Part 701 (OMB Control Number 0910...

  19. 76 FR 55706 - Agency Information Collection Activities; Proposed Collection; Comments Requested

    Science.gov (United States)

    2011-09-08

    ...] Agency Information Collection Activities; Proposed Collection; Comments Requested ACTION: 60-Day notice of information collection: Certification on Agency Letterhead Authorizing Purchase of Firearm for..., including the validity of the methodology and assumptions used; --Enhance the quality, utility, and clarity...

  20. Primary data collection in health technology assessment.

    Science.gov (United States)

    McIsaac, Michelle L; Goeree, Ron; Brophy, James M

    2007-01-01

    This study discusses the value of primary data collection as part of health technology assessment (HTA). Primary data collection can help reduce uncertainty in HTA and better inform evidence-based decision making. However, methodological issues such as choosing appropriate study design and practical concerns such as the value of collecting additional information need to be addressed. The authors emphasize the conditions required for successful primary data collection in HTA: experienced researchers, sufficient funding, and coordination among stakeholders, government, and researchers. The authors conclude that, under specific conditions, primary data collection is a worthwhile endeavor in the HTA process.

  1. Instrument to collect fogwater for chemical analysis

    Energy Technology Data Exchange (ETDEWEB)

    Jacob, D.J.; Waldman, J.M.; Haghi, M.; Hoffmann, M.R.; Flagan, R.C.

    1985-06-01

    An instrument is presented which collects large samples of ambient fogwater by impaction of droplets on a screen. The collection efficiency of the instrument is determined as a function of droplet size, and it is shown that fog droplets in the range 3--100-..mu..m diameter are efficiently collected. No significant evaporation or condensation occurs at any stage of the collection process. Field testing indicates that samples collected are representative of the ambient fogwater. The instrument may easily be automated, and is suitable for use in routine air quality monitoring programs.

  2. Instrument to collect fogwater for chemical analysis

    Science.gov (United States)

    Jacob, Daniel J.; Waldman, Jed M.; Haghi, Mehrdad; Hoffmann, Michael R.; Flagan, Richard C.

    1985-06-01

    An instrument is presented which collects large samples of ambient fogwater by impaction of droplets on a screen. The collection efficiency of the instrument is determined as a function of droplet size, and it is shown that fog droplets in the range 3-100-μm diameter are efficiently collected. No significant evaporation or condensation occurs at any stage of the collection process. Field testing indicates that samples collected are representative of the ambient fogwater. The instrument may easily be automated, and is suitable for use in routine air quality monitoring programs.

  3. 77 FR 1727 - Agency Information Collection Activities: Proposed Collection; Comments Requested; Extension of...

    Science.gov (United States)

    2012-01-11

    ... of appropriate automated, electronic, mechanical, or other technological collection techniques or... respondents associated with this information collection. Approximately 10.5 million cars become junk or are...

  4. Effects of departing individuals on collective behaviors

    Science.gov (United States)

    Nishiyama, Yuta; Okuda, Shoma; Migita, Masao; Murakami, Hisashi; Tomaru, Takenori

    2017-07-01

    Utilizing living organisms' abilities is an effective approach to realize flexible and unconventional computing. One possible bio-inspired computer might be developed from animal collective research by clarifying collective behaviors. Therefore, it is important to reveal how collective animal behaviors emerge. In many studies, individuals departing from the other individualsare generally ignored. Is it not possible that such departing individuals contribute to the organization of such collectives? To investigate the effects of individuals departing from a collective against collective behaviors, we observed and analyzed the behaviors of 40 soldier crabs in four types of experimental arenas. The recorded behaviors demonstrate a temporally changing pattern and the existence of departing individuals. We analyzed the relationship between global activity and cohesion levels and verified the features of departing individuals. The results imply that departing individuals contribute to collective behaviors.

  5. Customer-based collection development an overview

    CERN Document Server

    2014-01-01

    This essential guide to customer-based/patron-driven collection development will allow librarians to navigate the rapid changes in what users expect of libraries. The traditional "top down" approach to collection development definitely has its drawbacks: even after spending a good deal of time, energy, and resources, librarians are sometimes frustrated to find that their library's collection is not being used as they anticipated. But there's another strategy that's gaining momentum. This book gathers together the best practitioners in the emerging field of customer-based collection development to find out what library users need and want and provide strategies to allow librarians to manage collections accordingly. Drawing on the experiences of professionals from a variety of academic and public libraries, Customer-based Collection Development: * Offers strategies for planning and implementing a customer-based collection program * Summarizes its potential impact on a library's budget * Discusses cataloguing im...

  6. Statistical analysis in MSW collection performance assessment.

    Science.gov (United States)

    Teixeira, Carlos Afonso; Avelino, Catarina; Ferreira, Fátima; Bentes, Isabel

    2014-09-01

    The increase of Municipal Solid Waste (MSW) generated over the last years forces waste managers pursuing more effective collection schemes, technically viable, environmentally effective and economically sustainable. The assessment of MSW services using performance indicators plays a crucial role for improving service quality. In this work, we focus on the relevance of regular system monitoring as a service assessment tool. In particular, we select and test a core-set of MSW collection performance indicators (effective collection distance, effective collection time and effective fuel consumption) that highlights collection system strengths and weaknesses and supports pro-active management decision-making and strategic planning. A statistical analysis was conducted with data collected in mixed collection system of Oporto Municipality, Portugal, during one year, a week per month. This analysis provides collection circuits' operational assessment and supports effective short-term municipality collection strategies at the level of, e.g., collection frequency and timetables, and type of containers. Copyright © 2014 Elsevier Ltd. All rights reserved.

  7. 77 FR 36294 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Accounting...

    Science.gov (United States)

    2012-06-18

    ... Collection Activities; Proposed Collection; Comments Requested: Accounting System and Financial Capability... change of a currently approved collection. (2) The title of the form/collection: Accounting System and... for-profit entities and not-for-profit institutions. Other: None. The purpose of the Accounting System...

  8. 76 FR 24920 - Agency Information Collection Activities: Proposed Collection; Comment Request; Generic Clearance...

    Science.gov (United States)

    2011-05-03

    ... precision requirements or power calculations that justify the proposed sample size, the expected response... Collection; Comment Request; Generic Clearance for the Collection of Qualitative Feedback on Agency Service... Information Collection Request (Generic ICR): ``Generic Clearance for the Collection of Qualitative Feedback...

  9. 77 FR 52708 - Agency Information Collection Activities: Proposed Collection; Comment Request; Generic Clearance...

    Science.gov (United States)

    2012-08-30

    ... calculations that justify the proposed sample size, the expected response rate, methods for assessing potential...: Proposed Collection; Comment Request; Generic Clearance for the Collection of Qualitative Feedback on... Information Collection request (Generic ICR): ``Generic Clearance for the Collection of Qualitative Feedback...

  10. 76 FR 25693 - Agency Information Collection Activities: Proposed Collection; Comment Request; Generic Clearance...

    Science.gov (United States)

    2011-05-05

    ... requirements or power calculations that justify the proposed sample size, the expected response rate, methods... Collection; Comment Request; Generic Clearance for the Collection of Qualitative Feedback on Agency Service... Collection Request (Generic ICR): ``Generic Clearance for the Collection of Qualitative Feedback on Agency...

  11. 77 FR 68149 - Agency Information Collection Activities; Proposed New Collection; Comments Requested: COPS...

    Science.gov (United States)

    2012-11-15

    ... Collection; Comments Requested: COPS Comparative Assessment of Cost Reduction by Agencies Survey ACTION: 60... Collection: Proposed new collection; comments requested. (2) Title of the Form/Collection: COPS Comparative... brief abstract: Law enforcement agencies and other public and private entities that apply for COPS...

  12. 76 FR 2395 - Agency Information Collection Activities; Proposed Collection; Comment Request; Customer/Partner...

    Science.gov (United States)

    2011-01-13

    ... comment in response to the notice. This notice solicits comments on voluntary customer satisfaction...] Agency Information Collection Activities; Proposed Collection; Comment Request; Customer/Partner Service... collection of information they conduct or sponsor. ``Collection of information'' is defined in 44 U.S.C. 3502...

  13. 76 FR 53475 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2011-08-26

    ... forms for the proposed paperwork collections referenced above, access CMS' Web Site address at http...) ways to enhance the quality, utility, and clarity of the information to be collected; and (4) the use... Collection: National Balancing Indicators Project (NBIP) Direct Service Workforce Data Collection Effort; Use...

  14. 75 FR 32508 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2010-06-08

    ... teacher effectiveness. The methods of data collection will include both primary and secondary data collections. Primary data collection will include surveys and telephone interviews; secondary data sources... for research, evaluation and data collection (e.g., surveys and interviews) about the Noyce Program...

  15. 75 FR 77906 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Drug...

    Science.gov (United States)

    2010-12-14

    ... Collection Activities: Proposed Collection; Comments Requested: Drug Questionnaire DEA Form 341 ACTION: 60...: Extension of a currently approved collection. (2) Title of the Form/Collection: Drug Questionnaire (DEA Form... specific questions about their personal history, if any, of illegal drug use. (5) An estimate of the total...

  16. 77 FR 3003 - Agency Information Collection Activities: Proposed Collection; Comments Requested: Notice of...

    Science.gov (United States)

    2012-01-20

    ... Collection; Comments Requested: Notice of Appeal From a Decision of an Immigration Judge ACTION: 30-Day...) Type of Information Collection: Revision of a Currently Approved Collection. (2) Title of the Form/Collection: Notice of Appeal from a Decision of an Immigration Judge. (3) Agency form number, if any, and the...

  17. 75 FR 3907 - Agency Information Collection Activities: Proposed Collection; Comment Request

    Science.gov (United States)

    2010-01-25

    ... minimize the information collection burden. 1. Type of Information Collection Request: Extension of a... beneficiary/enrollee who wishes to appeal a determination by a Medicare health plan or hospital that inpatient.... Type of Information Collection Request: Revision of a currently approved collection; Title of...

  18. Collective solar hot water: best practices

    International Nuclear Information System (INIS)

    Beutin, Philippe; Grouzard, Patrice; Coroller, Francoise

    2005-10-01

    This brochure, edited by ADEME, the French office for energy management and sustainable development, gives a collection of good practices concerning the selection and installation of collective solar water heating systems in France. A first note presents the Garantie de Resultats solaires (GRS - Guarantee of Solar Results), a kind of certification that gives a long term guarantee of the annual solar energy produced quantity as a function of the hot water consumption. An overview of the collective solar market is given, followed by informations on the financial incentives for feasibility studies and installations, the technical design and optimization of a collective solar project, its economic assessment, etc. Numerous examples of collective of solar heating operations in collective buildings are presented, in various regions of France, in the east (Alsace), the center (Auvergne, Ile de France (Paris region)), and the south (Languedoc-Roussillon, Midi-Pyrennes, PACA), giving technical data, financing, partnerships, etc

  19. New trends in nuclear collective dynamics

    International Nuclear Information System (INIS)

    Abe, Yasuhisa; Horiuchi, Hisashi; Matsuyanagi, Kenichi

    1992-01-01

    New Trends in Nuclear Collective Dynamics comprises reviews by well-known researchers from international centers of nuclear physics. This overview of recent advances concentrates on - order amd chaos in finite quantum systems - dissipation in heavy-ion collions - collective motion in warm nuclei - time-dependent mean-field theory with collision terms - nuclear fission and multi-dimensional tunneling - large scale collective motion see hints under the relevent topics. (orig.) With 90 figs

  20. Collective issues related to B-factories

    International Nuclear Information System (INIS)

    Pestrikov, D.V.

    1993-02-01

    This report reviews the limitations on the performance of the planned B- and Φ-factories due to the collective interactions of stored bunches. Together with the traditional revision of the limitations due to the single- and multi-bunch interaction with surrounding electrodes, we briefly discuss in this report the limitations on the performance due to collective beam-beam instabilities of colliding beams and instabilities due to the collective interaction of beams with the ions. (author)

  1. Collective motion in behaviorally heterogeneous systems

    OpenAIRE

    Copenhagen, Katherine

    2017-01-01

    Collective motion is a widespread phenomenon in nature where individuals actively propel themselves, gather together and move as a group. Some examples of collective motion are bird flocks, fish schools, bacteria swarms, cell clusters, and crowds of people. Many models seek to understand the effects of activity in collective systems including things such as environmental disorder, density, and interaction details primarily at infinite size limits and with uniform populations. In this disserta...

  2. Waste Collection Vehicle Routing Problem: Literature Review

    OpenAIRE

    Hui Han; Eva Ponce Cueto

    2015-01-01

    Waste generation is an issue which has caused wide public concern in modern societies, not only for the quantitative rise of the amount of waste generated, but also for the increasing complexity of some products and components. Waste collection is a highly relevant activity in the reverse logistics system and how to collect waste in an efficient way is an area that needs to be improved. This paper analyzes the major contribution about Waste Collection Vehicle Routing Problem (WCVRP) in litera...

  3. Intensity of plant collecting in southern Africa

    Directory of Open Access Journals (Sweden)

    G. E. Gibbs Russell

    1984-12-01

    Full Text Available The intensity of plant collecting in southern Africa is mapped using records from the Pretoria National Herbarium Computerized Information System (PRECIS, For the entire area, over 85% of the quarter degree grid squares have fewer than 100 specimens recorded. Collecting intensities are compared for different countries, biomes and climatic zones. Future field work from the National Herbarium will be concentrated in areas most seriously under-collected.

  4. Trust-based collective view prediction

    CERN Document Server

    Luo, Tiejian; Xu, Guandong; Zhou, Jia

    2013-01-01

    Collective view prediction is to judge the opinions of an active web user based on unknown elements by referring to the collective mind of the whole community. Content-based recommendation and collaborative filtering are two mainstream collective view prediction techniques. They generate predictions by analyzing the text features of the target object or the similarity of users' past behaviors. Still, these techniques are vulnerable to the artificially-injected noise data, because they are not able to judge the reliability and credibility of the information sources. Trust-based Collective View

  5. 77 FR 46750 - Agency Information Collection Extension

    Science.gov (United States)

    2012-08-06

    ... Questionnaire Testing, Evaluation, and Research.'' The proposed collection will utilize qualitative and...: [ssquf] Field Testing [ssquf] Pilot Surveys [ssquf] Respondent Debriefings [ssquf] Cognitive Interviews... conducting pretest [[Page 46751

  6. Collective motion and the generator coordinate method

    International Nuclear Information System (INIS)

    Passos, E.J.V. de

    1981-01-01

    The generator coordinate method is used to construct a collective subspace of the many-body Hylbert space. The construction is based on the analysis of the properties of the overlaps of the generator states. Some well-known misbehaviours of the generator coordinate weight functions are clearly identified as of kinematical origin. A standard orthonormal representation in the collective subspace is introduced which eliminates them. It is also indicated how appropriate collective dynamical variables can be defined a posteriori. To illustrate the properties of the collective subspaces applications are made to a) translational invariant overlap kernels b) to one and two-conjugate parameter families of generator states. (Author) [pt

  7. Collective dose commitments from nuclear power programmes

    International Nuclear Information System (INIS)

    Beninson, D.

    1977-01-01

    The concepts of collective dose and collective dose commitment are discussed, particularly regarding their use to compare the relative importance of the exposure from several radiation sources and to predict future annual doses from a continuing practice. The collective dose commitment contributions from occupational exposure and population exposure due to the different components of the nuclear power fuel cycle are evaluated. A special discussion is devoted to exposures delivered over a very long time by released radionuclides of long half-lives and to the use of the incomplete collective dose commitment. The maximum future annual ''per caput'' doses from present and projected nuclear power programmes are estimated

  8. 78 FR 61397 - Notice of Information Collection

    Science.gov (United States)

    2013-10-03

    ..., citizenship, social security number (SSN), address, employment history, biometric identifiers (e.g. fingerprints), signature, digital photograph. NASA collects information from U.S. Citizens requiring access 30...

  9. 78 FR 74169 - Notice of Information Collection

    Science.gov (United States)

    2013-12-10

    ... States as a leader in aeronautics, space science, and technology. The NASA Office of Education... students, educators, and interested parties new and existing information collection forms and assessment...

  10. 75 FR 29782 - Proposed Collection, Comment Request

    Science.gov (United States)

    2010-05-27

    ... Annual Refiling Survey (CARS). Under CARS, BLS effectively utilizes the commercial advantages related to... automated, electronic, mechanical, or other technological collection techniques or other forms of...

  11. Microalgae Culture Collection: 1984-1985

    Energy Technology Data Exchange (ETDEWEB)

    1984-09-01

    The Microalgae Culture Collection at the Solar Energy Research Institute has been established for the maintenance and distribution of strains that have been characterized for biomass fuel applications.

  12. Initial Results from the Kwajalein Micrometeorite Collections

    Science.gov (United States)

    Wozniakiewicz, P. J.; Bradley, J. P.; Price, M. C.; Zolensky, M. E.; Ishii, H. A.; Brownlee, D. E.; Dearborn, D.; Jones, T.; Barnett, B.; Yakuma, S.; hide

    2014-01-01

    Micrometeorites are constantly arriving at the Earth's surface, however, they are quickly diluted by the natural and anthropogenic back-ground dust. The successful collection of micromete-orites requires either the employment of a separation technique (e.g. using magnets to separate metal-bearing micrometeorites from deepsea sediments [e.g. 1,2] and dissolved pre-historic limestones and salts [e.g. 3,4]), or an approach that limits contamination by terrestrial dust (e.g. collecting from ice, snow and well water in polar regions - locations where the terrestrial dust flux is so low that micrometeorites repre-sent the major dust component [e.g. 5-7]). We have recently set up a micrometeorite collection station on Kwajalein Island in the Republic of the Marshall Is-lands in the Pacific Ocean, using high volume air samplers to collect particles directly from the atmosphere. Collecting at this location exploits the considerably reduced anthropogenic background; Kwajalein is >1000 miles from the nearest continent and for much of the year, trade winds blow from the northeast at 15 to 20 knots providing a continuous stream of oceanic aerosol for sampling. By collecting directly from the atmosphere, the terrestrial age of the particles, and hence weathering they experience, is minimal. We therefore anticipate that the Kwajalein col-lection may include particles that are highly susceptible to weathering and either not preserved well or not found at all in other collections. In addition, this collection method allows for particle arrival times to be constrained so that collections can be timed to correlate with celestial events (e.g. meteor showers). Here we describe the collections and their preparation and report on the initial results.

  13. 75 FR 21685 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-04-26

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish...-mail request to Charles[email protected] . Comments regarding the information collection should be... days of this notice. Charles Mierzwa, Clearance Officer. [FR Doc. 2010-9531 Filed 4-23-10; 8:45 am...

  14. 75 FR 36451 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-06-25

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish... send an e-mail request to Charles[email protected] . Comments regarding the information collection... within 60 days of this notice. Charles Mierzwa, Clearance Officer. [FR Doc. 2010-15449 Filed 6-24-10; 8...

  15. 78 FR 6152 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-01-29

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will [email protected] . Comments regarding the information collection should be addressed to Charles Mierzwa, Railroad Retirement Board, 844 North Rush Street, Chicago, Illinois 60611-2092 or emailed to Charles...

  16. 78 FR 23599 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-04-19

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish... Substitution of Payee, obtains information needed to determine the selection of a representative payee who will... regarding the information collection should be addressed to Charles Mierzwa, Railroad Retirement Board, 844...

  17. 76 FR 72010 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-11-21

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish..., and/or supporting material, contact Charles Mierzwa, the RRB Clearance Officer, at (312) 751-3363 or Charles[email protected] . Comments regarding the information collection should be addressed to Patricia...

  18. 78 FR 13914 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-03-01

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish... collection should be addressed to Charles Mierzwa, Railroad Retirement Board, 844 North Rush Street, Chicago, Illinois 60611-2092 or emailed to Charles[email protected] . Written comments should be received within 60...

  19. 76 FR 15351 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-03-21

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish.../Password. Completion is voluntary, however, the RRB will be unable to provide a PRC or allow a requestor to... Charles[email protected] . Comments regarding the information collection should be sent to Patricia A...

  20. 78 FR 38412 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-06-26

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will [email protected] . Comments regarding the information collection should be addressed to Charles Mierzwa, Railroad Retirement Board, 844 North Rush Street, Chicago, Illinois 60611-2092 or emailed to Charles...

  1. 75 FR 21370 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-04-23

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish... Charles[email protected] . Comments regarding the information collection should be addressed to Patricia A.... Charles Mierzwa, Clearance Officer. [FR Doc. 2010-9435 Filed 4-22-10; 8:45 am] BILLING CODE 7905-01-P ...

  2. Connecting to Special Collections of Children's Literature

    Science.gov (United States)

    Brodie, Carolyn S.

    2013-01-01

    The Kent State University School of Library and Information Science serves as the home for two children's literature special collections. The Reinberger Children's Library Center is located on the third floor of Kent State's University Library and includes the Marantz Picturebook Collection for the Study of Picturebook Art. The Reinberger…

  3. 77 FR 44698 - Proposed Collection; Comment Request

    Science.gov (United States)

    2012-07-30

    ... provides employees of an issuer with financial information so that they can assess the performance of the... collections of information on respondents, including through the use of automated collection techniques or..., Copies Available From: Securities and Exchange Commission, Office of Investor Education and Advocacy...

  4. The Feasibility of Collecting School Nurse Data

    Science.gov (United States)

    Bergren, Martha Dewey

    2016-01-01

    School nurses cite barriers to collecting comprehensive data on the care they provide. This study evaluated the feasibility of collecting school nurse data on selected child health and education outcomes. Outcome variables included school health office visits; health provider, parent, and staff communication; early dismissal; and medications…

  5. 76 FR 33727 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-06-09

    ..., including through the use of automated collection techniques or other forms of information technology. DATES... Dextromethorphan and Naltrexone for Gulf War illness. Associated Form: Telephone Screening Form, CDMRP GW080064; OMB Control Number 0704-TBD. Needs and Uses: The information collection requirement is necessary in...

  6. Collecting and Interpreting Qualitative Materials. Third Edition

    Science.gov (United States)

    Denzin, Norman K., Ed.; Lincoln, Yvonna, Ed.

    2007-01-01

    This book is the third volume of the paperback versions of "The SAGE Handbook of Qualitative Research, Third Edition." This portion of the handbook considers the tasks of collecting, analyzing, and interpreting empirical materials, and comprises the Handbook's Parts IV ("Methods of Collecting and Analyzing Empirical Materials") and V ("The Art and…

  7. 76 FR 13994 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-03-15

    ... information collection requirement is necessary to obtain information on the reintegration needs of combat-injured Airmen from the perspectives of their primary supporters, the family members and friends whom the... challenges encountered by these Airmen during the process of reintegration. This information collection will...

  8. 78 FR 63970 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-10-25

    ... DEPARTMENT OF DEFENSE Department of the Army [Docket ID: USA-2013-0035] Proposed Collection..., 2013. Aaron Siegel, Alternate OSD Federal Register Liaison Officer, Department of Defense. [FR Doc... obtain a copy of the proposal and associated collection instruments, please write to the US Army Public...

  9. 77 FR 35658 - Proposed Collection; Comment Request

    Science.gov (United States)

    2012-06-14

    ... rulemaking mandates, the Bureau seeks to collect qualitative information from industry participants regarding... burdens on their respective institutions. The Bureau recognizes that burdens vary depending on the size... collections of information will seek to sample providers that are representative of markets affected by a...

  10. 78 FR 52215 - Notice of Information Collection

    Science.gov (United States)

    2013-08-22

    .... Method of Collection Electronic and Paper III. Data Title: NASA GRC Shadowing and Exploring OMB Number: 2700-XXXX Type of review: Existing Collection without OMB Approval Affected Public: Individuals... in the 14-20 age groups. It connects classroom training to tangible activities that enable practical...

  11. Memoised Garbage Collection for Software Model Checking

    NARCIS (Netherlands)

    Nguyen, V.Y.; Ruys, T.C.; Kowalewski, S.; Philippou, A.

    Virtual machine based software model checkers like JPF and MoonWalker spend up to half of their veri��?cation time on garbage collection. This is no surprise as after nearly each transition the heap has to be cleaned from garbage. To improve this, this paper presents the Memoised Garbage Collection

  12. 77 FR 39690 - Proposed Agency Information Collection

    Science.gov (United States)

    2012-07-05

    ... through a simple algorithm that will establish appropriate quantitative criteria, translating the... information collection request contains: (1) OMB No.: {New{time} ; (2) Information Collection Request Title... needed to research information would have been completed previously; (5) Type of Respondents: Public; (6...

  13. 75 FR 47583 - Proposed Agency Information Collection

    Science.gov (United States)

    2010-08-06

    ... submitted to the Office of Management and Budget (OMB) for clearance, a proposal for collection of... former-student questionnaires will also collect information on types of employment since leaving college... anticipate that you will be submitting comments, but find it difficult to do so within the period of time...

  14. Collecting data in real time with postcards

    DEFF Research Database (Denmark)

    Yee, Kwang Chien; Kanstrup, Anne Marie; Bertelsen, Pernille

    2013-01-01

    Systems. These methods often involve cross-sectional, retrospective data collection. This paper describes the postcard method for prospective real-time data collection, both in paper format and electronic format. This paper then describes the results obtained using postcard techniques in Denmark...

  15. 77 FR 71171 - Proposed Collection; Comment Request

    Science.gov (United States)

    2012-11-29

    ... their job, level of training, system response time when entering or accessing the information, and... information collection on respondents, including through the use of automated collection techniques or other... Division, ATTN: Karen Saddoris, CDFM-A, Project Officer, 5202 Leesburg Pike, Suite 1100, Falls Church, VA...

  16. 78 FR 53134 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-08-28

    ... are properly trained. Requesting and receiving direct feedback from this group would be helpful to...; Comment Request AGENCY: Air Education and Training Command (AETC/A5TS), Department of the Air Force... collection on respondents, including through the use of automated collection techniques or other forms of...

  17. Dermatological moulage collections in the Nordic countries.

    Science.gov (United States)

    Worm, A-M; Sinisalo, H; Eilertsen, G; Åhrén, E; Meyer, I

    2018-04-01

    The art of producing and acquiring dermatological wax models, moulages, flourished all over Europe in the beginning of the twentieth century, whereas very little is known about the existence of moulage collections in the Nordic countries. The aim of this study was to elucidate the presence, the origin, the production place, the use and the condition of dermatological moulage collections in the Nordic countries. In each Nordic country, an extensive survey was undertaken during spring 2016. Dermatological departments, museums with medical collections, persons assumed to have specific information about wax moulages as well as secondary sources were contacted and interviewed. Several hitherto undescribed collections have survived in each country, most, however, damaged and in disrepair. One Danish and part of a Finnish collection have been restored. Only few moulages are exhibited and some have been photographed and digitalized. Denmark and Sweden have had a local moulage production. Responses to the survey indicate that the result covers all collections of dermatological moulages in the Nordic countries, though some moulages may remain in private collections unknown to the authors, or uncatalogued in museums. Moulages are medical gems from bygone days before modern technology facilitated new means of communication. Restoration and appropriate storing should be considered for at least selected items from the Nordic collections. © 2017 European Academy of Dermatology and Venereology.

  18. Capturing haplotypes in germplasm core collections

    Science.gov (United States)

    Genomewide data sets of single nucleotide polymorphisms (SNPs) offer great potential to improve ex situ conservation. Two factors impede their use for producing core collections. First, due to the large number of SNPs, the assembly of collections that maximize diversity may be intractable using ex...

  19. Enumeration of small collections violates Weber's law.

    Science.gov (United States)

    Choo, H; Franconeri, S L

    2014-02-01

    In a phenomenon called subitizing, we can immediately generate exact counts of small collections (one to three objects), in contrast to larger collections, for which we must either create rough estimates or serially count. A parsimonious explanation for this advantage for small collections is that noisy representations of small collections are more tolerable, due to the larger relative differences between consecutive numbers (e.g., 2 vs. 3 is a 50 % increase, but 10 vs. 11 is only a 10 % increase). In contrast, the advantage could stem from the fact that small-collection enumeration is more precise, relying on a unique mechanism. Here, we present two experiments that conclusively showed that the enumeration of small collections is indeed "superprecise." Participants compared numerosity within either small or large visual collections in conditions in which the relative differences were controlled (e.g., performance for 2 vs. 3 was compared with performance for 20 vs. 30). Small-number comparison was still faster and more accurate, across both "more-fewer" judgments (Exp. 1), and "same-different" judgments (Exp. 2). We then reviewed the remaining potential mechanisms that might underlie this superprecision for small collections, including the greater diagnostic value of visual features that correlate with number and a limited capacity for visually individuating objects.

  20. Mind the Gap: Integrating Special Collections Teaching

    Science.gov (United States)

    Samuelson, Todd; Coker, Cait

    2014-01-01

    Instruction is a vital part of the academic librarian's public services mission, but the teaching efforts of special collections librarians can be overlooked due to the culture and particularities of teaching in an archival setting. This article documents the challenges special collections librarians face in integrating their teaching program into…

  1. 7 CFR 1956.139 - Collections.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 14 2010-01-01 2009-01-01 true Collections. 1956.139 Section 1956.139 Agriculture Regulations of the Department of Agriculture (Continued) RURAL HOUSING SERVICE, RURAL BUSINESS-COOPERATIVE... REGULATIONS (CONTINUED) DEBT SETTLEMENT Debt Settlement-Community and Business Programs § 1956.139 Collections...

  2. 75 FR 5304 - Proposed Agency Information Collection

    Science.gov (United States)

    2010-02-02

    ....: New; (2) Information Collection Request Title: Test of Potential Fuel Economy Benefits of In-Vehicle Driver Feedback Devices; (3) Type of Request: New Collection; (4) Purpose: The In-Vehicle Driver Feedback... economy benefits of in-vehicle fuel economy feedback devices. If the test confirms that fuel economy...

  3. Water Collection from Air Humidity in Bahrain

    Directory of Open Access Journals (Sweden)

    Dahman. Nidal A.

    2017-01-01

    Full Text Available The Kingdom of Bahrain falls geographically in one of the driest regions in the world. Conventional fresh surface water bodies, such as rivers and lakes, are nonexistent and for water consumption, Bahrain prominently relies on the desalination of sea water. This paper presents an ongoing project that is being pursued by a group of student and their advising professors to investigate the viability of extracting water from air humidity. Dehumidifiers have been utilized as water extraction devices. Those devices have been distributed on six areas that were selected based on a rigorous geospatial modeling of historical meteorological data. The areas fall in residential and industrial neighborhoods that are located in the main island and the island of Muharraq. Water samples have been collected three times every week since May of 2016 and the collection process will continue until May of 2017. The collected water samples have been analyzed against numerous variables individually and in combinations including: amount of water collected per hour versus geographical location, amount of water collected per hour versus meteorological factors, suitability of collected water for potable human consumption, detection of air pollution in the areas of collection and the economy of this method of water collection in comparison to other nonconventional methods. An overview of the completed analysis results is presented in this paper.

  4. 76 FR 62098 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-10-06

    ... public comment on new or revised data collections, the Railroad Retirement Board (RRB) will publish periodic summaries of proposed data collections. Comments are invited on: (a) Whether the proposed... that the information provided is correct and the applicant's agreement to sign the form by proxy. The...

  5. Faculty Power: Collective Bargaining on Campus.

    Science.gov (United States)

    Tice, Terrence N., Ed.; Holmes, Grace W., Ed.

    This document, an outgrowth of the national conference of the Institute of Continuing Legal Education held in 1971, sets forth the views of lawyers and educators concerning the legal, economic, and institutional implications of faculty collective bargaining. Part I, principles and practices of collective bargaining, discusses legal principles of…

  6. 77 FR 6092 - Proposed Collection; Comment Request

    Science.gov (United States)

    2012-02-07

    ... collect data through similar web-based methodologies on commercial hardware systems that detect chemical... chemical and radiological agents. The surveillance of hardware systems has been tasked by The Joint Program... Continuation of CBRN Surveillance Hardware Systems ECBC will collect data on CBRN surveillance systems in...

  7. Evolution of collective commitment during teamwork

    NARCIS (Netherlands)

    Dunin-Keplicz, B; Verbrugge, R

    In this paper we aim to describe dynamic aspects of social and collective attitudes in teams of agents involved in Cooperative Problem Solving (CPS). Particular attention is given to the strongest motivational attitude, collective commitment, and its evolution during team action. First, building on

  8. Recommendations based on semantically enriched museum collections

    NARCIS (Netherlands)

    Wang, Y.; Stash, N.; Aroyo, L.M.; Gorgels, P.; Rutledge, L.W.; Schreiber, G.

    2008-01-01

    This article presents the CHIP demonstrator1 for providing personalized access to digital museum collections. It consists of three main components: Art Recommender, Tour Wizard, and Mobile Tour Guide. Based on the semantically enriched Rijksmuseum Amsterdam2 collection, we show how Semantic Web

  9. 75 FR 29572 - Information Collection; Grazing Management

    Science.gov (United States)

    2010-05-26

    ... Control Number 1004-0019] Information Collection; Grazing Management AGENCY: Bureau of Land Management... submitted an information collection request to the Office of Management and Budget (OMB) for a 3-year... INFORMATION: Title: Grazing Management (43 CFR 4120). OMB Number: 1004-0019. Forms: 4120-6 (Cooperative Range...

  10. Collective Omissions and Responsibility | Petersson | Philosophical ...

    African Journals Online (AJOL)

    for not having acted collectively? This paper argues that that loosely structured inactive groups sometimes meet this requirement if we employ a weak (but nonetheless nonreductionist) notion of collective agency. This notion can be defended on independent grounds. The resulting position on distribution of responsibility is ...

  11. 78 FR 41042 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-07-09

    ..., docket number and title for this Federal Register document. The general policy for comments and other... information collection or to obtain a copy of the proposal and associated collection instruments, please write to Chaplain Corps Accounting Center, 266 F Street, Suite 2, JBSA Randolph, TX 78150-4583, email gary...

  12. Management Strategies for Promoting Teacher Collective Learning

    Science.gov (United States)

    Cheng, Eric C. K.

    2011-01-01

    This paper aims to validate a theoretical model for developing teacher collective learning by using a quasi-experimental design, and explores the management strategies that would provide a school administrator practical steps to effectively promote collective learning in the school organization. Twenty aided secondary schools in Hong Kong were…

  13. 76 FR 77312 - Information Collection Activities

    Science.gov (United States)

    2011-12-12

    ... consolidation authority under 11323-26. Under these Title 49 provisions, rail carriers and non-carriers are... a merger or common-control arrangement. The relevant information collections are described in more... collections in use without an OMB control number. Respondents: Rail carriers and non-carriers seeking...

  14. 77 FR 2094 - Proposed Collection; Comment Request

    Science.gov (United States)

    2012-01-13

    ... ensure that requested data can be provided in the desired format, reporting burden (time and financial... agencies with an opportunity to comment on proposed and/or continuing collections of information in... revisions to existing information collection on arts activities funded through State Arts Assemblies and...

  15. 78 FR 51171 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-08-20

    ... collection techniques or other forms of information technology. DATES: Consideration will be given to all... submissions available for public viewing on the Internet at http://www.regulations.gov as they are received... proposal and associated collection instruments, please write to the Defense Logistics Agency, Security and...

  16. 77 FR 7236 - Information Collection Activities

    Science.gov (United States)

    2012-02-10

    ... information to the applicant or offeror. The relevant information collections are described in more detail... available through the Federal Information Relay Service (FIRS) at 1-800-877- 8339.] Relevant STB regulations... DEPARTMENT OF TRANSPORTATION Surface Transportation Board Information Collection Activities AGENCY...

  17. 77 FR 43067 - Proposed Agency Information Collection

    Science.gov (United States)

    2012-07-23

    ... that personnel from the DOE Offices of Nuclear Energy (NE) and Environmental Management (EM), the... Survey. Recommendations developed by the president's Blue Ribbon Commission on America's Nuclear Energy... collected, and to assess the impact of collection requirements on the public. Also, the EIA will later seek...

  18. 76 FR 66096 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-10-25

    ..., including the use of automated collection techniques or other forms of information technology. Title and..., obtains certification of a student's full-time school attendance. It also obtains information on a student... information collection is necessary for the proper performance of the functions of the agency, including...

  19. 78 FR 72065 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-12-02

    ... Education Activity announces a proposed public information collection and seeks public comment on the... through the use of automated collection techniques or other forms of information technology. DATES... provide the following information in its application. First, the LEA must provide the special education...

  20. 75 FR 60435 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-09-30

    ..., including through the use of automated collection techniques or other forms of information technology. DATES... 3502(c)(2)(A) of the Paperwork Reduction Act of 1995, the Chief of Naval Education and Training announces a proposed extension of a previously approved public information collection and seeks public...

  1. 77 FR 8843 - Proposed Collection; Comment request

    Science.gov (United States)

    2012-02-15

    ... collection techniques or other forms of information technology. DATES: Consideration will be given to all... 3502(c)(2)(A) of the Paperwork Reduction Act of 1995, the Chief of Naval Education and Training announces a proposed public information collection and seeks public comment on the provisions thereof...

  2. 75 FR 2113 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-01-14

    ...: whether the proposed collection of information is necessary for the proper performance of the functions of...'s estimate of the burden of the proposed information collection; ways to enhance the quality... Health Research Center, DoD Center for Deployment Health Research, Department 164, ATTN: Tyler C. Smith...

  3. 76 FR 13990 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-03-15

    ...) Whether the proposed collection of information is necessary for the proper performance of the functions of... agency's estimate of the burden of the proposed information collection; (c) ways to enhance the quality... to Naval Health Research Center, DoD Center for Deployment Health Research, Department 164, ATTN...

  4. 78 FR 75677 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-12-12

    ... data collection. Affected Public: Business/Financial Institutions. Estimated Number of Respondents: 100... information collection that is due for extension approval by the Office of Management and Budget. The Terrorism Risk Insurance Program Office within the Department of the Treasury is soliciting comments...

  5. 75 FR 3941 - Notice of Information Collection

    Science.gov (United States)

    2010-01-25

    ... collection and analysis of worldwide safety issues. II. Method of Collection Aviation stakeholders will be... option of printing it and filling it out manually and then returning it via traditional mail, filling it.... III. Data Title: Biennial NextGen Safety Issue Survey. OMB Number: 2700-XXXX. Type of Review: New...

  6. 75 FR 55359 - Notice of Information Collection

    Science.gov (United States)

    2010-09-10

    ... future project modifications. II. Method of Collection Data will be collected via interviews and surveys.... Unlike traditional graduate research or teaching assistantships, IGERT provides doctoral students with... Respondents: 2,915 (2,000 survey only; 115 survey and interview; 800 interview only). Estimated Number of...

  7. 25 CFR 63.4 - Information collection.

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Information collection. 63.4 Section 63.4 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR TRIBAL GOVERNMENT INDIAN CHILD PROTECTION AND FAMILY VIOLENCE PREVENTION Purpose, Policy, and Definitions § 63.4 Information collection. The information...

  8. Collection of heparinized plasma by plasmapheresis

    NARCIS (Netherlands)

    van der Meer, P. F.; Vrielink, H.; Pietersz, R. N.; Dekker, W. J.; Reesink, H. W.

    1999-01-01

    BACKGROUND AND OBJECTIVES: Heparinized plasma can be used for exchange transfusions in neonates and is usually collected by drawing whole blood using heparin as anticoagulant. The heparinized red blood cells and buffy coat cannot be used and are therefore discarded. To collect heparinized plasma

  9. 75 FR 51502 - Proposed Collection Renewal

    Science.gov (United States)

    2010-08-20

    ... . E-mail comments must be made in text and not in attachments. FOR FURTHER INFORMATION CONTACT: Denora... collection: The Peace Corps and Paul D. Coverdell World Wise Schools need this information officially to... comments on whether the proposed collections of information are necessary for proper performance of the...

  10. Digital data collection in forest dynamics plots

    Science.gov (United States)

    Faith Inman-Narahari; Christian Giardina; Rebecca Ostertag; Susan Cordell; Lawren Sack

    2010-01-01

    Summary 1. Computers are widely used in all aspects of research but their application to in-field data collection for forest plots has rarely been evaluated. 2. We developed digital data collection methods using ESRI mapping software and ruggedized field computers to map and measure ~30 000 trees in two 4-ha forest dynamics plots in wet and dry...

  11. 76 FR 67668 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-11-02

    ... variety of collection methods, including interviews and research, to inform the design, development and implementation of the model form(s). The information collected through qualitative evaluation methods will inform... generalized to the overall population. This type of generic clearance for qualitative information will not be...

  12. 78 FR 34994 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-06-11

    ... DEPARTMENT OF DEFENSE Office of the Secretary [Docket ID DoD-2013-OS-0126] Proposed Collection; Comment Request AGENCY: Defense Finance and Accounting Service (DFAS), DoD. ACTION: Notice. In compliance... collection instruments, please write to the Defense Finance and Accounting Services-CL, 1240 East 9th Street...

  13. Women's Studies Collections: A Checklist Evaluation

    Science.gov (United States)

    Bolton, Brooke A.

    2009-01-01

    A checklist evaluation on thirty-seven Women's Studies programs conducted using the individual institutions' online public access catalogs (OPACs) is presented. Although Women's Studies collections are very difficult to build, an evaluation of existing programs shows that collections, for the most part, have managed substantial coverage of the…

  14. Collective Psychological Ownership and Intergroup Relations

    NARCIS (Netherlands)

    Verkuyten, Maykel; Martinovic, Borja

    2017-01-01

    Whereas much social psychological research has studied the in-group and out-group implications of social categorization and collective identity (“we”), little research has examined the nature and relevance of collective psychological ownership (“ours”) for intergroup relations. We make a case for

  15. 77 FR 47048 - Agency Information Collection Extension

    Science.gov (United States)

    2012-08-07

    ... collection requests a three-year extension of its Petroleum Marketing Program, OMB Control Number 1905-0174... as the needs of EIA's public and private customers. Data collected include costs, sales, prices, and... petroleum marketing survey forms listed below: EIA-14, ``Refiners' Monthly Cost Report'' EIA-182, ``Domestic...

  16. Collective excitations in deformed alkali metal clusters

    International Nuclear Information System (INIS)

    Lipparini, E.; Stringari, S.; Istituto Nazionale di Fisica Nucleare, Povo

    1991-01-01

    A theoretical study of collective excitations in deformed metal clusters is presented. Sum rules are used to study the splittings of the dipole surface plasma resonance originating from the cluster deformation. The vibrating potential model is developed and used to predict the occurrence of a low lying collective mode of orbital magnetic nature. (orig.)

  17. Developing and managing electronic collections the essentials

    CERN Document Server

    Johnson, Peggy

    2014-01-01

    The complex issues associated with developing and managing electronic collections deserve special treatment, and library collection authority Peggy Johnson rises to the challenge with a book sure to become a benchmark for excellence. Providing comprehensive coverage of key issues and decision points, she offers advice on best practices for developing and managing these important resources for libraries of all types and sizes.

  18. COLLECTIVE NEGOTIATIONS--IMPLICATIONS FOR RESEARCH.

    Science.gov (United States)

    OHM, ROBERT E.

    THE AUTHOR STATES THAT CONFLICT, CONTROL, AND BARGAINING ARE PRIMARY ELEMENTS FOR RELEVANT THEORY AND RESEARCH ON COLLECTIVE TEACHER NEGOTIATION. COLLECTIVE ACTIVITY BY TEACHERS IS ATTRIBUTED TO THEIR INCREASED PROFESSIONALIZATION AND IS REGARDED AS AN ORGANIZATIONAL RESPONSE GENERATED BY AN EMERGING MANAGERIAL-PROFESSIONAL-BUREAUCRATIC…

  19. Supporting Exploration of Historical Perspectives across Collections

    NARCIS (Netherlands)

    Odijk, Daan; Garbacea, Cristina; Schoegje, Thomas; Hollink, Laura; de Boer, Victor; Ribbens, Kees; van Ossenbruggen, Jacco

    2015-01-01

    The ever growing number of textual historical collections calls for methods that can meaningfully connect and explore these. Different collections offer different perspectives, expressing views at the time of writing or even a subjective view of the author. We propose to connect heterogeneous

  20. Supporting Exploration of Historical Perspectives Across Collections

    NARCIS (Netherlands)

    Odijk, D.; Gârbacea, C.; Schoegje, T.; Hollink, L.; de Boer, V.; Ribbens, K.; van Ossenbruggen, J.; Kapidakis, S.; Mazurek, C.; Werla, M.

    2015-01-01

    The ever growing number of textual historical collections calls for methods that can meaningfully connect and explore these. Different collections offer different perspectives, expressing views at the time of writing or even a subjective view of the author. We propose to connect heterogeneous

  1. Instability and Change in Collective Bargaining

    DEFF Research Database (Denmark)

    Brandl, Bernd; Ibsen, Christian Lyhne

    2017-01-01

    Previous studies on collective bargaining structures and macroeconomic performance have largely ignored the role of stable and instable institutional structures and the effects of institutional change itself. In this article we posit that institutional stability of collective bargaining is of maj...... following the change. This effect also holds for changes in both decentralization and centralization of institutions....

  2. 75 FR 23311 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-05-03

    ... does not contain a collection of information because it does not impose identical reporting... financial reports,\\9\\ which is a collection of information for purposes of the Paperwork Reduction Act of... information. See 5 CFR 1320.3(b)(2) (``The time, effort, and financial resources necessary to comply with a...

  3. Identifying Kinds of Reasoning in Collective Argumentation

    Science.gov (United States)

    Conner, AnnaMarie; Singletary, Laura M.; Smith, Ryan C.; Wagner, Patty Anne; Francisco, Richard T.

    2014-01-01

    We combine Peirce's rule, case, and result with Toulmin's data, claim, and warrant to differentiate between deductive, inductive, abductive, and analogical reasoning within collective argumentation. In this theoretical article, we illustrate these kinds of reasoning in episodes of collective argumentation using examples from one…

  4. Phase space dynamics and collective variable fluctuations

    International Nuclear Information System (INIS)

    Benhassine, B.; Farine, M.; Idier, D.; Remaud, B.; Sebille, F.; Schuck, P.

    1995-01-01

    A dynamical study of collective variable fluctuations in heavy ion reactions is performed within the framework of the Boltzmann-Langevin theory. A general method to extract dispersions on collective variables from numerical simulations based on test particles models is presented and its validity is checked by comparison with analytical equilibrium results. (authors)

  5. Phase space dynamics and collective variable fluctuations

    Energy Technology Data Exchange (ETDEWEB)

    Benhassine, B.; Farine, M.; Idier, D.; Remaud, B.; Sebille, F. [Laboratoire de Physique Nucleaire de Nantes, 44 (France); Schuck, P. [Institut des Sciences Nucleaires, 38 - Grenoble (France)

    1995-12-31

    A dynamical study of collective variable fluctuations in heavy ion reactions is performed within the framework of the Boltzmann-Langevin theory. A general method to extract dispersions on collective variables from numerical simulations based on test particles models is presented and its validity is checked by comparison with analytical equilibrium results. (authors) 10 refs.

  6. 40 CFR 243.204 - Collection management.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Collection management. 243.204 Section 243.204 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES GUIDELINES... and Recommended Procedures § 243.204 Collection management. ...

  7. 31 CFR 281.3 - Collections.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Collections. 281.3 Section 281.3 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE FOREIGN EXCHANGE OPERATIONS § 281.3 Collections...

  8. 76 FR 5161 - Proposed Collection; Comment Request

    Science.gov (United States)

    2011-01-28

    ... FEDERAL HOUSING FINANCE AGENCY [No. 2011-N-02] Proposed Collection; Comment Request AGENCY: Federal Housing Finance Agency. ACTION: Submission of Information Collection for Emergency Approval from the Office of Management and Budget. SUMMARY: The Federal Housing Finance Agency (FHFA) submitted to...

  9. 78 FR 63204 - Proposed Collection; Comment Request

    Science.gov (United States)

    2013-10-23

    ... Office of Management and Budget, Attention: Desk Officer for the Federal Housing Finance Agency... FEDERAL HOUSING FINANCE AGENCY [No. 2013-N-12] Proposed Collection; Comment Request AGENCY: Federal Housing Finance Agency. ACTION: 30-day Notice of Submission of Information Collection for Approval...

  10. 75 FR 40834 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-07-14

    ... of Management and Budget, Attention: Desk Officer for the Federal Housing Finance Agency, Washington... FEDERAL HOUSING FINANCE AGENCY [No. 2010-N-08] Proposed Collection; Comment Request AGENCY: Federal Housing Finance Agency. ACTION: 30-day Notice of Submission of Information Collection for Approval...

  11. 76 FR 20347 - Proposed Agency Information Collection

    Science.gov (United States)

    2011-04-12

    ..., including through the use of automated collection techniques or other forms of information technology. DATES... and natural gas). The purpose of the information collection is to estimate the direct impacts on...: Title IV of the Energy Conservation and Production Act of 1976 (42 U.S.C. 6861 et seq.), as amended...

  12. 77 FR 34368 - Agency Information Collection Extension

    Science.gov (United States)

    2012-06-11

    ..., biofuels production, natural gas plant liquids production, inventory levels, imports, inter-regional... collected on weekly reports such as production of natural gas plant liquids and refinery processing gain... collection techniques or other forms of information technology. DATES: Comments must be filed by August 10...

  13. Social partners debate collective agreement system

    NARCIS (Netherlands)

    van het Kaar, R.

    2013-01-01

    Worries about levels of union membership have prompted debates on the collective bargaining system in the Netherlands. Governments have supported collective bargaining but the current Minister for Employment has stressed the need to enlarge the social base of the system and has sought advice from

  14. Collectives and the design of complex systems

    CERN Document Server

    Wolpert, David

    2004-01-01

    Increasingly powerful computers are making possible distributed systems comprised of many adaptive and self-motivated computational agents. Such systems, when distinguished by system-level performance criteria, are known as "collectives." Collectives and the Design of Complex Systems lays the foundation for a science of collectives and describes how to design them for optimal performance. An introductory survey chapter is followed by descriptions of information-processing problems that can only be solved by the joint actions of large communities of computers, each running its own complex, decentralized machine-learning algorithm. Subsequent chapters analyze the dynamics and structures of collectives, as well as address economic, model-free, and control-theory approaches to designing complex systems. The work assumes a modest understanding of basic statistics and calculus. Topics and Features: Introduces the burgeoning science of collectives and its practical applications in a single useful volume Combines ap...

  15. Modelling collective cell migration of neural crest.

    Science.gov (United States)

    Szabó, András; Mayor, Roberto

    2016-10-01

    Collective cell migration has emerged in the recent decade as an important phenomenon in cell and developmental biology and can be defined as the coordinated and cooperative movement of groups of cells. Most studies concentrate on tightly connected epithelial tissues, even though collective migration does not require a constant physical contact. Movement of mesenchymal cells is more independent, making their emergent collective behaviour less intuitive and therefore lending importance to computational modelling. Here we focus on such modelling efforts that aim to understand the collective migration of neural crest cells, a mesenchymal embryonic population that migrates large distances as a group during early vertebrate development. By comparing different models of neural crest migration, we emphasize the similarity and complementary nature of these approaches and suggest a future direction for the field. The principles derived from neural crest modelling could aid understanding the collective migration of other mesenchymal cell types. Copyright © 2016 Elsevier Ltd. All rights reserved.

  16. Endoscopic management of peripancreatic fluid collections.

    Science.gov (United States)

    Goyal, Jatinder; Ramesh, Jayapal

    2015-07-01

    Peripancreatic fluid collections are a well-known complication of pancreatitis and can vary from fluid-filled collections to entirely necrotic collections. Although most of the fluid-filled pseudocysts tend to resolve spontaneously with conservative management, intervention is necessary in symptomatic patients. Open surgery has been the traditional treatment modality of choice though endoscopic, laparoscopic and transcutaneous techniques offer alternative drainage approaches. During the last decade, improvement in endoscopic ultrasound technology has enabled real-time access and drainage of fluid collections that were previously not amenable to blind transmural drainage. This has initiated a trend towards use of this modality for treatment of pseudocysts. In this review, we have summarised the existing evidence for endoscopic drainage of peripancreatic fluid collections from published studies.

  17. Dermatological moulage collections in the Nordic countries

    DEFF Research Database (Denmark)

    Worm, A M.; Sinisalo, H.; Eilertsen, G.

    2017-01-01

    BACKGROUND: The art of producing and acquiring dermatological wax models, moulages, flourished all over Europe in the beginning of the twentieth century, whereas very little is known about the existence of moulage collections in the Nordic countries. OBJECTIVE: The aim of this paper is to elucidate...... the presence, the origin, the production place, the use and the condition of dermatological moulage collections in the Nordic countries. METHODS: In each Nordic country, an extensive survey was undertaken during spring 2016. Dermatological departments, museums with medical collections, persons assumed to have...... specific information about wax moulages as well as secondary sources were contacted and interviewed. RESULTS: Several hitherto undescribed collections have survived in each country, most however damaged and in disrepair. One Danish and part of a Finnish collection have been restored. Only few moulages...

  18. Achille Maramotti, between factory and collection

    Directory of Open Access Journals (Sweden)

    Chiara Pirozzi

    2016-11-01

    Full Text Available The article analyzes Achille Maramotti’s figure and links between entrepreneurship and his passion for art and contemporary collections: from the desire to expose his private collection inside Max Mara factory to create a collection that was the mirror of the artistic experiments of his time. The article analyzes the critical contributions in the development of Maramotti Collection and, in particular, the relationship between Achille Maramotti and Mario Diacono that, as the Emilian collector, is expert and admirer of European and American painting of the second half of the twentieth century. Achille Maramotti, sons and daughter are considered among the most influential collectors in the world, and represents a successful example of contemporary art collection linked to the image and business management; the Max Mara fashion house.

  19. Collective systems:physical and information exergies.

    Energy Technology Data Exchange (ETDEWEB)

    Robinett, Rush D. III (.; ); Wilson, David Gerald

    2007-04-01

    Collective systems are typically defined as a group of agents (physical and/or cyber) that work together to produce a collective behavior with a value greater than the sum of the individual parts. This amplification or synergy can be harnessed by solving an inverse problem via an information-flow/communications grid: given a desired macroscopic/collective behavior find the required microscopic/individual behavior of each agent and the required communications grid. The goal of this report is to describe the fundamental nature of the Hamiltonian function in the design of collective systems (solve the inverse problem) and the connections between and values of physical and information exergies intrinsic to collective systems. In particular, physical and information exergies are shown to be equivalent based on thermodynamics and Hamiltonian mechanics.

  20. Organising collective reputation: An Ostromian perspective

    Directory of Open Access Journals (Sweden)

    Boldizsár Megyesi

    2016-09-01

    Full Text Available What do collective reputation and communal pastures have in common? Collective reputation is an important type of collective good produced by many business networks. We argue that it has the structure of a common-pool resource, which points to the relevance of Elinor Ostrom’s theory about the community governance of natural common-pool resources. After adapting the Ostromian framework to the phenomenon of collective reputation, we explore the experience of two groups of winemaking enterprises in Hungary who set up systems of quality assurance in order to protect and improve their joint reputation. We examine if the conditions identified by Ostrom as favourable for the self-governance of commons are also conducive to the governance of collective reputation. Our findings validate our conjecture that research on goal-oriented business networks may use insights from the mature theory of ‘governing the commons’. Potential pathways for further research are outlined.