PEMANFAATAN LIMBAH DARAH SAPI DAN KIAMBANG SEBAGAI PUPUK RAMAH LINGKUNGAN UNTUK MENDUKUNG PERTANIAN LAHAN GAMBUT YANG BERKELANJUTAN

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HASTIN ERNAWATI

2015-12-01

Full Text Available ABSTRACTA Farming system adopted by farmers in Sub-District Kalampangan is very dependent agricultural systems within organic fertilizer. The use of in organic fertilizers continuously providea considerable impact on the surroundingenvironment. Nutrient the soilare bound by the molecules of chemical fertilizers so the top soi lregenerationprocess can not to be done.One alternativesolutionthat is proposed is the use of fertilizers derived from localresources around, the cow blood waste from slaughter houses and swamp plant sgiant salvinia (Salvinia molesta.Trouble shooting methods in this service activities were 1 education and training composting of cow blood-giantsalvinia 2 demonstration plot to show the prove of greatness of cow blood-giant salvinia compost to the plants3 mentoring and coaching partner farmers. The results showed that cow blood and giant salvinia potentially beusedas contained in an environmentally friendly organic fertilizer fo able crops grownon peat. Thefertilizershouldbe developedso thatfarmerscanbea superior productin order to meetone of thecomponents neededto initiatethechangefromconventional farming systemstoorganic farming systems.Keywords : cow blood waste, giant salvinia, compost, organic fertilizer, organic farming

Bioenergy potential of eight common aquatic weeds

Energy Technology Data Exchange (ETDEWEB)

Abbasi, S.A.; Nipaney, P.C.; Schaumberg, G.D. (Pondicherry (Central) Univ. (IN). Salim Ali School of Ecology)

1990-01-01

Eight common aquatic weeds Salvinia molesta, Hydrilla verticillata, Nymphaea stellata, Azolla pinnata, Ceratopteris sp. Scirpus sp. Cyperus sp, and Utricularia reticulata were digested anaerobically to produce methane. The carbon to nitrogen (C/N) ratio, carbon to phosphorus (C/P) ratio, and the volatile solids (VS) content of the weeds varied widely. No trend between these factors and the methane yield was discernable; the possible reasons are discussed. The energy potential of the weeds per unit area of the weed crop was worked out. Natural stands of salvinia, such as the one employed in the present investigation, would yield energy (methane) of the order of 10{sup 8} Kcal/ha/yr. (author).

Microbiological stimulation of phytoremediation process using Salvinia natans to mercury contamined water

Science.gov (United States)

Filyarovskaya, Viktoriya; Sitarska, Magdalena; Traczewska, Teodora; Wolf, Mirela

2017-11-01

An alternative to traditional cleaning methods of heavy metals in the water environment is phytoremediation. They efficiency depends on used technological process conditions as well as plant species. One of the most dangerous metallic elements mercury plays a particular role, which is a trace element and a physiologically foreign in living organisms. Mercury has a high degree of toxicity with strong affinity to thiol groups. This may cause an adverse effect on the enzymatic processes and consequently inhibiting the physiological functions. Because of high risk for human health, water environment treatment from mercury is essential proecological action. Mercury removal studies were conducted using Salvinia natans pleustofit, sampled from its natural water environment. In the first step, epiphytic bacteria, which was resistant to high concentrations of mercury (0,6 mgHg/l), was isolated from the plant and than selected by the tiles gradient mthod. In the next step, the identification using molecular biology methods was made. In the following step plant Salvinia natans was exposure to high levels of mercury in the presence of the three isolated Pseudomonas strains with exceptional resistance characteristics to environmental factors. Has been found a positive bacteria effect on the plant condition because the selected strains belong to Pseudomonas species producing materials supporting plant growth. The use of microbial stimulation to phytoremediation by hyperaccumulator Salvinia natans can multiply the effectiveness of the process.

Microbiological stimulation of phytoremediation process using Salvinia natans to mercury contamined water

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Filyarovskaya Viktoriya

2017-01-01

Full Text Available An alternative to traditional cleaning methods of heavy metals in the water environment is phytoremediation. They efficiency depends on used technological process conditions as well as plant species. One of the most dangerous metallic elements mercury plays a particular role, which is a trace element and a physiologically foreign in living organisms. Mercury has a high degree of toxicity with strong affinity to thiol groups. This may cause an adverse effect on the enzymatic processes and consequently inhibiting the physiological functions. Because of high risk for human health, water environment treatment from mercury is essential proecological action. Mercury removal studies were conducted using Salvinia natans pleustofit, sampled from its natural water environment. In the first step, epiphytic bacteria, which was resistant to high concentrations of mercury (0,6 mgHg/l, was isolated from the plant and than selected by the tiles gradient mthod. In the next step, the identification using molecular biology methods was made. In the following step plant Salvinia natans was exposure to high levels of mercury in the presence of the three isolated Pseudomonas strains with exceptional resistance characteristics to environmental factors. Has been found a positive bacteria effect on the plant condition because the selected strains belong to Pseudomonas species producing materials supporting plant growth. The use of microbial stimulation to phytoremediation by hyperaccumulator Salvinia natans can multiply the effectiveness of the process.

Mitchell firmly retrenched in natural gas services

International Nuclear Information System (INIS)

Share, J.

1997-01-01

The past three years, Mitchell Energy and Development Corp. has undergone a massive restructuring that has changed the face of one of the nation's largest and best-known natural gas/natural gas liquids companies. Facing a rapidly changing industry that frequently has been stung by volatile swings in energy markets, management of the independent company, founded by George Mitchell in 1946, sold off $300 million in non-core assets; reduced its long-term debt by $400 million; instituted a hiring freeze and reduced its workforce by a third, from 2,900 to 1,950, over the last three years. Mitchell negotiated a buyout of its hugely profitable North Texas gas sales contract with Natural Gas Pipeline Company of America as a means of easing its transition to a market-sensitive price environment and reducing its debt. Mitchell also took operational control. Finally, Mitchell has left the real estate business, culminating July 31 with the sale of its real estate subsidiary, The Woodlands Corporation, for $543 million ($460 million net after-tax), further reducing its workforce to 1,100. On Aug. 18, the company said it will use the proceeds to repurchase common stock, retire another $200 million of public debt, make asset niche energy acquisitions and increase capital spending for existing programs. The result is a renewed focus on its exploration and production and gas gathering, processing and marketing businesses

Sir William Mitchell (1925-2002)

CERN Multimedia

2002-01-01

Sir William (Bill) Mitchell, former President of the CERN Council, died on 30th October 2002 at the age of 77. Mitchell was professor of Physics at Oxford University from 1978 to 1989, having previously been Professor of Physics, Dean of Science and Deputy Vice-Chancellor at Reading University. From 1985 to 1990 he was Chairman of the UK's Science and Engineering Research Council (SERC), which at the time was the funding agency for the UK's participation in the CERN programme. As Chairman, Mitchell was one of the UK representatives on the CERN Council, and in 1991 he was elected President, a position he held for three years. This was a difficult period for CERN. Financial problems were being faced in many member states, notably in Germany as a result of unification. This led to calls for reductions in the CERN budget and, more significantly, to requests for delays in consderation of future programmes. On the other hand for the future of CERN and the progress of elementary particle physics, it was necessary...

Eine praktische Anwendung von CMC-Flächen in der Bionik

OpenAIRE

Apeltauer, Christian

2011-01-01

Die vorliegende Arbeit beschäftigt sich mit den theoretischen Grundlagen für die Entwicklung von Oberflächen, die unter Wasser möglichst lange eine Luftschicht an sich halten können. Ein natürliches Vorbild für solche Oberflächen ist die Pflanze Salvinia molesta; technisch interessieren solche Oberflächen zur Verringerung des Wasserwiderstandes von Schiffen und als Schutz vor Besiedlung durch Wasserorganismen. Wichtigste Gleichung bei der Entwicklung solcher Oberflächen ist...

Measuring air layer volumes retained by submerged floating-ferns Salvinia and biomimetic superhydrophobic surfaces

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Matthias J. Mayser

2014-06-01

Full Text Available Some plants and animals feature superhydrophobic surfaces capable of retaining a layer of air when submerged under water. Long-term air retaining surfaces (Salvinia-effect are of high interest for biomimetic applications like drag reduction in ship coatings of up to 30%. Here we present a novel method for measuring air volumes and air loss under water. We recorded the buoyancy force of the air layer on leaf surfaces of four different Salvinia species and on one biomimetic surface using a highly sensitive custom made strain gauge force transducer setup. The volume of air held by a surface was quantified by comparing the buoyancy force of the specimen with and then without an air layer. Air volumes retained by the Salvinia-surfaces ranged between 0.15 and 1 L/m2 depending on differences in surface architecture. We verified the precision of the method by comparing the measured air volumes with theoretical volume calculations and could find a good agreement between both values. In this context we present techniques to calculate air volumes on surfaces with complex microstructures. The introduced method also allows to measure decrease or increase of air layers with high accuracy in real-time to understand dynamic processes.

Control of Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae) with entomopathogenic nematodes (Rhabditida: Heterorhabditidae, Steinernematidae) in peach orchards.

Science.gov (United States)

de Carvalho Barbosa Negrisoli, Carla Ruth; Negrisoli, Aldomario Santo; Garcia, Mauro Silveira; Dolinski, Claudia; Bernardi, Daniel

2013-10-01

Oriental fruit moth Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae) is considered a major pest in temperate fruit trees, such as peach and apple. Entomopathogenic nematodes (EPNs) are regarded as viable for pest management control due to their efficiency against tortricid in these trees. The objective of this study was to evaluate the effectiveness of native EPNs from Rio Grande do Sul state against pre-pupae of G. molesta under laboratory and field conditions. In the laboratory, pre-pupae of G. molesta were placed in corrugated cardboard sheets inside glass tubes and exposed to 17 different EPNs strains at concentrations of 6, 12, 24, 48 and 60 IJs/cm(2) and maintained at 25 °C, 70 ± 10% RH and photophase of 16 h. Insect mortality was recorded 72 h after inoculation of EPNs. Steinernema rarum RS69 and Heterorhabditis bacteriophora RS33 were the most virulent strains and selected for field application (LC95 of 70.5 and 53.8 IJs/cm(2), respectively). Both strains were highly efficient under field conditions when applied in aqueous suspension directed to larvae on peach tree trunk, causing mortality of 94 and 97.0%, respectively. Copyright © 2013 Elsevier Inc. All rights reserved.

76 FR 20032 - Thomas E. Mitchell, M.D.; Dismissal of Proceeding

Science.gov (United States)

2011-04-11

... DEPARTMENT OF JUSTICE Drug Enforcement Administration [Docket No. 10-7] Thomas E. Mitchell, M.D... Control, Drug Enforcement Administration, issued an Order to Show Cause to Thomas E. Mitchell, M.D....100(b) and 0.104, I hereby order that the Order to Show Cause issued to Thomas E. Mitchell, M.D., be...

Effect of endogenous factors on the chemical perception of Grapholita molesta (Busck) (Lepidoptera: Tortricidae) to sex pheromone; Efeito de fatores endogenos na percepcao quimica de Grapholita molesta(Busck) (Lepidoptera: Tortricidae) ao feromonio sexual

Energy Technology Data Exchange (ETDEWEB)

Altafini, Deisi L.; Sant' Ana, Josue; Redaelli, Luiza R., E-mail: deisila@gmail.co [Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil). Dept. de Fitossanidade. Programa de Pos-Graduacao em Fitotecnia

2010-06-15

The oriental fruit moth, Grapholita molesta (Busck), stands out as one of the most important pest in Rosaceae orchards in Brazil. During feeding, caterpillars bore into shoots, branches and fruits, impairing the commercial production. This work aimed to study the effect of endogenous factors in the chemical perception and in the species chemotactic behavior, seeking to optimize monitoring and the behavioral control of this pest. We evaluated male electroantennographical (EAG) and chemotactical (olfactometry) responses to the synthetic sex pheromone in different ages, virgins or mated and fed or unfed. The EAG responses of males did not differ for all evaluated factors. Nevertheless, the chemotactical behavior of males seems to decrease with age, not varying as a function of mating or feeding conditions. The knowledge about the interference of these factors in G. molesta may help with the interpretation of fi eld results, allowing the development of suitable and reliable control measures based on infochemicals for behavioral control. (author)

The biological control of aquatic weeds in South Africa: Current status and future challenges

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Martin P. Hill

2017-03-01

Full Text Available Background: Aquatic ecosystems in South Africa are prone to invasion by several invasive alien aquatic weeds, most notably, Eichhornia crassipes (Mart. Solms-Laub. (Pontederiaceae (water hyacinth; Pistia stratiotes L. (Araceae (water lettuce; Salvinia molesta D.S. Mitch. (Salviniaceae (salvinia; Myriophyllum aquaticum (Vell. Conc. Verd. (parrot’s feather; and Azolla filiculoides Lam. (Azollaceae (red water fern. Objective: We review the biological control programme on waterweeds in South Africa. Results: Our review shows significant reductions in the extent of invasions, and a return on biodiversity and socio-economic benefits through the use of this method. These studies provide justification for the control of widespread and emerging freshwater invasive alien aquatic weeds in South Africa. Conclusions: The long-term management of alien aquatic vegetation relies on the correct implementation of biological control for those species already in the country and the prevention of other species entering South Africa.

Evaluation of Topramezone and Benzobicyclon for Activity on Giant Salvinia

Science.gov (United States)

2016-07-01

inhibitor, topramezone, is a bleaching herbicide that targets a plant-specific enzyme. Topramezone also possesses a low toxicity to mammals, fish , and...Sanders, L. Eisenberg, and K. Whitehead. 2010. Fighting the blob : efforts to control giant salvinia. Louisiana Agriculture 5(1)3:6-9. Komatsubara...U.S. Army Engineer Research and Development Center. McKnight, B. M., E. P. Webster, C. Sandoski, E. A. Bergeron, and J. C. Fish . 2015. Benzobicyclon

Mitchell's influence on European studies of peripheral nerve injuries during World War I.

Science.gov (United States)

Koehler, Peter J; Lanska, Douglas J

2004-12-01

Describe the influence of S. Weir Mitchell's (1829-1914) work, and in particular his ideas on causalgia, on European physicians who treated peripheral nerve injuries during World War I (WWI). During the American Civil War (1861-1865), Mitchell studied peripheral nerve injuries with colleagues George Read Morehouse and William Williams Keen. Three monographs resulted from this work. All were important landmarks in the evolution of knowledge of peripheral nerve injuries. A subsequent occasion to improve knowledge came in WWI. The most important European monographs or series on peripheral nerve injuries from WWI were studied with special interest in references to causalgia and Mitchell's works on peripheral nerve injuries. We included works by Tinel, Athanassio-Benisty, Purves-Stewart & Evans and Carter, Foerster and Oppenheim. Tinel and Athanassio-Benisty provided the most detailed information on peripheral nerve injuries and causalgia and often referred to Mitchell. Both mentioned a possible sympathetic origin. Athanassio-Benisty described tremor and other movement disorders in relation to causalgia. Purves-Stewart and Evans mentioned Mitchell and causalgia in the second edition of their book. They advocated the term "thermalgia." Carter, who had access to data of many cases, concentrated his work on causalgia, referring to Mitchell. Foerster provided data of a great number of peripheral nerve injuries, but did not refer to Mitchell. However, he described the symptoms of causalgia cursorily, applying the term Reflexschmerz (reflexpain). Oppenheim was particularly interested in muscle innervation and referred to Mitchell with respect to hypertrichosis and glossy skin. Oppenheim did not use the term causalgia, although he described the syndrome in some of his patients. It wasn't until around 1920 that German physicians devoted significant attention to causalgia and began using the term. Knowledge of peripheral nerve injuries was greatly advanced during and after WWI

Roger Mitchell : Maailma päästmine pole vaid teadlaste asi / Roger Mitchell ; interv. Silvia Lotman

Index Scriptorium Estoniae

Mitchell, Roger

2006-01-01

Earthwatch Instituut on ülemaailmne organisatsioon, mille missiooniks on kaasata vabatahtlikke ja teadlasi, levitamaks säästva arengu sõnumit. Instituuti tutvustab teaduse ja hariduse osakonna direktor Roger Mitchell

Effect of salt stress on nutrient concentration, photosynthetic pigments, proline and foliar morphology of Salvinia auriculata Aubl. Efeito do estresse salino sobre as concentrações de nutrientes, pigmentos fotossintéticos, prolina e na morfologia foliar de Salvinia auriculata Aubl.

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Maria Angélica da Conceição Gomes

2011-06-01

Full Text Available AIM: This study aimed to investigate the effects of NaCI and Na2So4 salts on Ca, CI, K, Mg N, P, S and Na content as well as on the content of photosynthetic pigments (chlorophyll-a, chlorophyll-b and carotenoids, proline content and on the foliar morphology of Salvinia auriculata Aubl. METHODS: The plants were collected in Jacu lagoon, located in the North of Rio de Janeiro State, and after a five-day-acclimation period, experiments were performed in the greenhouse with 0, 100, 200 mM concentrations of NaCI and Na2SO4 salts and the usual techniques for light and electron microscopy. RESULTS: After seven days of experiment, a decrease in the content of Ca2+, K+, Mg2+, P, N ions as well as in the content of photosynthetic pigments (chlorophyll-a,b and carotenoids in Salvinia auriculata under saline treatments was observed. The proline content showed an upward tendency as compared to the control. Under transmission electron microscopy, it was observed that, on the foliar limb, there was a membrane system disorder, mainly of chloroplasts, with higher presence of starch grains of plant cells subjected to salinity. Under scanning electron microscope, the integrity of trichomes and foliar limb cells of Salvinia auriculata subjected to the control treatment as well as the changes caused by salinization on the surface of cells were observed. CONCLUSION: As for all the salinization effects evaluated, it was noticed that the increase in Na2SO4 salt concentration resulted in higher morphological and nutritional alterations in the floating aquatic macrophyte, Salvinia auriculata.OBJETIVO: Este estudo teve como objetivo investigar os efeitos dos sais NaCl e Na2SO4 sobre o conteúdo de Ca, Cl, K, Mg, N, P, S, Na; teor de pigmentos fotossintéticos (clorofila-a, clorofilab-b e carotenóides; teor de prolina e a morfologia das folhas de Salvinia auriculata Aubl. MÉTODOS: As plantas foram coletadas na lagoa do Jacu localizada no Norte do Estado do Rio de

Accumulation of copper by the aquatic macrophyte Salvinia biloba Raddi (Salviniaceae

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F. Freitas

2017-07-01

Full Text Available Abstract Aquatic macrophytes have properties and mechanisms which are useful for the removal of substances in solution, commonly used in phytoremediation processes in aquatic environments. This study evaluated the performance of copper (Cu accumulation by Salvinia biloba Raddi (Salviniaceae in different metal concentrations (1, 3 and 5 µg mL-1, as well as the control treatment, measured at intervals of 0, 7 and 14 days under laboratory conditions, with control as to pH and luminosity. After the experiment, the S. biloba biomass was washed, kiln dried, crushed and subjected to the process of digestion, and subsequently the accumulated copper content was determined by atomic absorption spectroscopy. The results showed that S. biloba is apt at accumulating copper, varying significantly between different treatments and days of exposure to the contaminant, as well as its interaction (treatment × days. The highest accumulation values were observed in treatment with 5 µg mL-1, which at 14 days, with 11,861 µg g-1 of copper. We observed symptoms of toxicity and mortality in plants, probably indicating the effect of copper on the species when at high levels. Salvinia biloba is an efficient species in the removal of copper in solution, its recommendation as a remediating agent in aquatic ecosystems being possible.

The effects of acclimation and rates of temperature change on critical thermal limits in Tenebrio molitor (Tenebrionidae) and Cyrtobagous salviniae (Curculionidae).

Science.gov (United States)

Allen, Jessica L; Clusella-Trullas, Susana; Chown, Steven L

2012-05-01

Critical thermal limits provide an indication of the range of temperatures across which organisms may survive, and the extent of the lability of these limits offers insights into the likely impacts of changing thermal environments on such survival. However, investigations of these limits may be affected by the circumstances under which trials are undertaken. Only a few studies have examined these effects, and typically not for beetles. This group has also not been considered in the context of the time courses of acclimation and its reversal, both of which are important for estimating the responses of species to transient temperature changes. Here we therefore examine the effects of rate of temperature change on critical thermal maxima (CT(max)) and minima (CT(min)), as well as the time course of the acclimation response and its reversal in two beetle species, Tenebrio molitor and Cyrtobagous salviniae. Increasing rates of temperature change had opposite effects on T. molitor and C. salviniae. In T. molitor, faster rates of change reduced both CT(max) (c. 2°C) and CT(min) (c. 3°C), while in C. salviniae faster rates of change increased both CT(max) (c. 6°C) and CT(min) (c. 4°C). CT(max) in T. molitor showed little response to acclimation, while the response to acclimation of CT(min) was most pronounced following exposure to 35°C (from 25°C) and was complete within 24 h. The time course of acclimation of CT(max) in C. salviniae was 2 days when exposed to 36°C (from c. 26°C), while that of CT(min) was less than 3 days when exposed to 18°C. In T. molitor, the time course of reacclimation to 25°C after treatments at 15°C and 35°C at 75% RH was longer than the time course of acclimation, and varied from 3-6 days for CT(max) and 6 days for CT(min). In C. salviniae, little change in CT(max) and CT(min) (molitor and C. salviniae may be restricted in their ability to respond to transient temperature changes at short-time scales, and instead may have to rely on

Salvinia auriculata: Aquatic bioindicator studied by instrumental neutron activation analysis (INAA)

Energy Technology Data Exchange (ETDEWEB)

Ferreira Soares, Daniel Cristian; Figueiredo de Oliveira, Ester [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN), Avenida Antonio Carlos, 6627 Pampulha, CEP 30123-970 Belo Horizonte, Minas Gerais (Brazil); Fatima Silva, Gracia Divina de; Duarte, Lucienir Pains [Departamento de Quimica, ICEx, Nucleo de estudos de Plantas Medicinais (NEPLAM), Universidade Federal de Minas Gerais, Avenida Antonio Carlos, 6627 Pampulha, 31270-901 Belo Horizonte, Minas Gerais (Brazil); Pott, Vali Joana [Empresa Brasileira de Agropecuaria (EMBRAPA), BR 262 km 4, Caixa Postal 154, CEP 79002-970 Campo Grande, Mato Grosso do Sul (Brazil); Vieira Filho, Sidney Augusto [Escola de Farmacia, DEFAR, Universidade Federal de Ouro Preto, Rua Costa Sena, 171, CEP 35400-000 Ouro Preto, Minas Gerais (Brazil)], E-mail: bibo@ef.ufop.br

2008-05-15

Through instrumental neutron activation analysis (INAA) the elemental chemical composition of Salvinia auriculata and Ouro Preto city public water was determined. Elements Ce, Th, Cr, Hf, Sb, Sc, Rb, Fe, Zn, Co, Au, La and Br were quantified. High chromium concentration was determined in this plant. But, chromium was determined only in low concentrations in the water. The results indicate the great capacity of this plant to absorb and accumulate inorganic elements.

Danos de Grapholita molesta (Busck (Lepidoptera: Tortricidae em seis cultivares de pessegueiro em Araucária, Paraná Damages of Grapholita molesta (Busck (Lepidoptera: Tortricidae in six peach orchards cultivars in Aracuária, Paraná

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Alex Sandro Poltronieri

2008-12-01

Full Text Available Estudaram-se a ocorrência e os danos de Grapholita molesta (Lepidoptera: Tortricidae em pomar comercial de pessegueiros com seis cultivares de ciclos de maturação de frutos precoce ('São Pedro', médio ('Chimarrita', 'Ouro', 'Coral' e 'Marli' e tardio ('BR II', no município de Araucária-PR. Foram sorteadas cinco plantas por cultivar para serem avaliados os danos em brotações e frutos. Os danos foram acumulados e avaliados em três fases: pré-raleio, endurecimento do caroço e colheita. Os resultados mostraram que houve um nível diferenciado no ataque de G. molesta em brotações e frutos, entre as cultivares. As avaliações de danos em brotações mostraram que, até a fase de colheita, a cultivar Ouro foi a mais atacada, sendo superada pela 'Chimarrita' quando se inclui os danos ocorridos na fase pós-colheita. Em frutos, a 'Marli' apresentou o maior número de pêssegos danificados entre as seis cultivares avaliadas.This paper deals with the occurrence and damage of Grapholita molesta (Lepidoptera: Tortricidae in a commercial peach orchard with six cultivars of different fruit ripening cycles: precocious ('São Pedro ', medium ('Chimarrita ', 'Ouro ', 'Coral ' and 'Marli ' and late ('BR II ', in Araucaria, State of Paraná, Brazil. Five plants of each cultivar were selected for evaluating the damages in shoots and fruits. The damages were accumulated and evaluated in three phases: previous thinning, stone hardening and harvesting. The results were as follows: the cultivar "Ouro" was the most damaged one up to the harvesting phase, although 'Chimarrita' surpassed 'Ouro' when the damages observed in the post-harvesting phase were included. Among the six cultivars, 'Marli' was the one presenting the highest number of damaged fruits.

Juristist fotograafiks / Graham Mitchell ; intervjueerinud Roberta Laas

Index Scriptorium Estoniae

Mitchell, Graham

2009-01-01

Eestis töötav fotograaf ja digitaalkunstnik Graham Mitchell räägib oma elust, huvist fotograafia vastu, inspiratsiooniallikatest. On spetsialiseerunud inimeste pildistamisele moe ja reklaami tarbeks

Response of oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), eggs to gamma radiation

Energy Technology Data Exchange (ETDEWEB)

Silva, W.D., E-mail: weliton.silva@usp.b [Department of Entomology and Acarology, Laboratory of Chemical Ecology and Insect Behavior, University of Sao Paulo, ' Luiz de Queiroz' College of Agriculture, Padua Dias Avenue, 11, 13418-900 Piracicaba (Brazil); Arthur, V.; Mastrangelo, T. [Food Irradiation and Radioentomology Laboratory, Center for Nuclear Energy in Agriculture (CENA/USP), Centenario Avenue 303, 13400-970 Piracicaba (Brazil)

2010-10-15

As insects increase in radiotolerance as they develop and usually several developmental stages of the pest may be present in the fresh shipped commodity, it is important to know the radiation susceptibility of the stages of the target insect before the establishment of ionizing radiation quarantine treatments. This study was performed to determine the radiotolerance of eggs of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), to gamma radiation. This species is considered as one of the most serious worldwide pests for temperate fruits, especially peaches. Eggs (12 h old) were exposed to 0 (control), 25, 35, 50, 75, 100, 125 and 150 Gy of gamma radiation. Surviving larvae were allowed to feed on an artificial diet. Three days after irradiation, it was verified that larvae's cephalic capsules were significantly affected by gamma radiation, and the estimated mean LD{sub 90} and LD{sub 99} were 66.3 Gy and 125.8 Gy, respectively. Oriental fruit moth eggs revealed to be quite radiosensitive and very low doses as 50 Gy were sufficient to disrupt G. molesta embryogenesis. At 25 Gy, only male adults originated from the surviving larvae and, after mating with untreated fertile females, shown to be sterile.

Decontamination of coal mine effluent generated at the Rajrappa coal mine using phytoremediation technology.

Science.gov (United States)

Lakra, Kalpana C; Lal, B; Banerjee, T K

2017-06-03

Toxicity of the effluent generated at the Rajrappa coal mine complex under the Central Coalfields Limited (CCL, a subsidiary of Coal India Limited) in Jharkhand, India was investigated. The concentrations (mg L -1 ) of all the toxic metals (Fe, Mn, Ni, Zn, Cu, Pb, Cr, and Cd) in the coal mine effluent were above the safe limit suggested by the Environmental Protection Agency (EPA 2003). Among these, Fe showed the highest concentration (18.21 ± 3.865), while Cr had the lowest effluent concentration (0.15 ± 0.014). Efforts were also made to detoxify the effluent using two species of aquatic macrophytes namely "'Salvinia molesta and Pistia stratiotes." After 10 days of phytoremediation, S. molesta removed Pb (96.96%) > Ni (97.01%) > Cu (96.77%) > Zn (96.38%) > Mn (96.22%) > Fe (94.12%) > Cr (92.85%) > Cd (80.99%), and P. stratiotes removed Pb (96.21%) > Fe (94.34%) > Ni (92.53%) > Mn (85.24%) > Zn (79.51%) > Cr (78.57%) > Cu (74.19%) > Cd (72.72%). The impact of coal mine exposure on chlorophyll content showed a significant decrease of 42.49% and 24.54% from control values in S. molesta and P. stratiotes, respectively, perhaps due to the damage inflicted by the toxic metals, leading to the decay of plant tissues.

Flutuação populacional de Grapholita molesta (Busck com armadilhas de feromônio sexual na cultura do pessegueiro em Bento Gonçalves, RS, Brasil Seasonal fluctuation of Grapholita molesta (Busck using sexual pheromon in peach orchards in Bento Gonçalves, RS, Brazil

Directory of Open Access Journals (Sweden)

Cristiano João Arioli

2005-02-01

Full Text Available A flutuação populacional de machos de Grapholita molesta (Busck, 1916 (Lepidoptera: Tortricidae foi avaliada em dois pomares comerciais de pessegueiro da cultivar Chiripá em Bento Gonçalves, RS, entre julho de 2000 a junho de 2002. Os insetos foram capturados por meio de armadilhas Delta (duas por pomar iscadas com a formulação comercial do feromônio sexual sintético (E-8-dodecenil-acetato + Z-8-dodecenil-acetato + Z-8-dodecenol e avaliados semanalmente. Foram observados quatro picos populacionais durante o período de produção do pessegueiro: quarta semana de agosto, primeira de novembro e dezembro, e segunda de janeiro. A temperatura média dos sete dias anteriores à cada avaliação foi correlacionada positivamente com o número de adultos da G. molesta capturados nas armadilhas. As informações deste trabalho podem ser utilizadas para orientar os produtores de pessegueiro, visando a direcionar as táticas de controle para os períodos em que a população do inseto for mais elevada nos pomares comerciais.Seasonal fluctuation of male Grapholita molesta (Busck, 1916 (Lepidoptera: Tortricidae was evaluated in two commercial peach orchards cv Chiripá in Bento Gonçalves, RS, from June of 2000 to July of 2002. The insects were evaluated weekly using Delta traps (two/orchard baited with commercial synthetic sex pheromone (E-8-dodecenil-acetato + Z-8-dodecenil-acetato + Z-8-dodecenol. Four peaks were observed during peach production period: last week of August, first of November and December and second of January. Medium temperature seven days before evaluation was positively correlated with catches of male G. molesta in the traps. Information about seasonal fluctuation can be used for growers as a tool to guide insecticide treatments for pest control in peach orchards.

Macrobenthos of Vembanad estuary in relation to the deposition of degraded water fern Salvinia and other macrophytes

Digital Repository Service at National Institute of Oceanography (India)

Gopalan, U.K.; Meenakshikunjamma, P.P.; Vengayil, D.T.

Composition and seasonal abundance of macrobenthos in Vembanad estuary (India) seems to be influenced by the density of decaying macrophytes, especially the water fern Salvinia , deposited at the bottom of the estuary at the rate of 356.76 g/m super...

Novel nanoscale pheromone dispenser for more accurate evaluation of Grapholita molesta (Lepidoptera: Tortricidae) attract-and-kill strategies in the laboratory.

Science.gov (United States)

Czarnobai De Jorge, Bruna; Bisotto-de-Oliveira, Ricardo; Pereira, Cláudio Nunes; Sant'Ana, Josué

2017-09-01

Nanotechnology has recently allowed the production of formulations for controlled release of active ingredients. In the present study, the electrospinning technique was used to produce nanoscale dispensers for attract-and-kill strategies. Non-woven nanofibres containing insecticide (cypermethrin) and (E)-8,(Z)-8-dodecenyl acetate and (Z)-8-dodecanol (0.87 mg L -1 ), the main components of Grapholita molesta (Lepidoptera: Tortricidae) (Busck) pheromone, were evaluated in laboratory experiments. Male electroantennographic (EAG) responses and mortality (tarsal-contact and attract-and-kill behavioural cages) bioassays were performed for nanofibres (with and without insecticide) exposed for different periods (21, 42, 63 and 84 days) in controlled and non-exposed conditions. There were no significant differences in G. molesta male EAG responses based on the time of exposure within treatments. Nanofibres with pheromone only and with pheromone plus insecticide elicited equal EAG responses. Mortality in tarsal-contact bioassays was greater than 87% after exposure for 84 days. In the attract-and-kill bioassays, mortality ranged from 28.4 to 56.6%, although no difference was observed on insect mortalities over time (24, 48 and 72 h). Incorporation of cypermethrin in nanofibres did not interfere with G. molesta attractiveness. Both aspects of the strategy, the attractant and killing effects, were recorded using innovative nanofibres, and long-term effects suggest a controlled release of pheromone and insecticide. © 2017 Society of Chemical Industry. © 2017 Society of Chemical Industry.

Treatment efficiency of effluent prawn culture by wetland with floating aquatic macrophytes arranged in series

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MNP Henares

Full Text Available The efficiency of a series of wetland colonized with Eichhornia crassipes and Salvinia molesta to treat the effluent of a giant river prawn (Macrobrachium rosenbergii broodstock pond was evaluated in this study. The experimental design was completely randomized and was performed in 9 rectangular tanks (1.6 m3 with three treatments (constructed wetlands and three replicates. The treatment types included: a wetland colonized with E. crassipes and S. molesta (EcSm arranged sequentially, a wetland with E. crassipes only (Ec and a wetland with S. molesta only (Sm. The means of suspended particulate material (SPM, total inorganic nitrogen (TIN, total Kjeldahl nitrogen (TKN, P-orthophosphate (PO4-P and total phosphorus (TP of the treated effluents were compared using ANOVA followed by Tukey's test (P<0.05. The effluent treated in Ec and EcSm wetlands exhibited lower SPM concentrations. The Ec wetland reduced TIN, TKN, PO4-P and TP by 46.0, 43.7, 44.4 and 43.6%, respectively. In the EcSm wetland, the reduction of TIN (23.0%, TKN (33.7% and PO4-P (26.7% was similar to the Sm wetland (19.8% TIN, 30.9% TKN and 23.8% PO4-P. The Ec wetland was more efficient in treating pond effluent due likely to the higher root surface of E. crassipes, which forms an extensive area favorable to retention and adsorption of debris and absorption of nutrients.

Mitchell-Riley Syndrome: A Novel Mutation in RFX6 Gene

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Marta Zegre Amorim

2015-01-01

Full Text Available A novel RFX6 homozygous missense mutation was identified in an infant with Mitchell-Riley syndrome. The most common features of Mitchell-Riley syndrome were present, including severe neonatal diabetes associated with annular pancreas, intestinal malrotation, gallbladder agenesis, cholestatic disease, chronic diarrhea, and severe intrauterine growth restriction. Perijejunal tissue similar to pancreatic tissue was found in the submucosa, a finding that has not been previously reported in this syndrome. This case associating RFX6 mutation with structural and functional pancreatic abnormalities reinforces the RFX6 gene role in pancreas development and β-cell function, adding information to the existent mutation databases.

Effect of different water temperatures on growth of aquatic plants Salvinia natans and Ceratophyllum demersum

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Khadija Kadhem Hreeb

2016-12-01

Full Text Available Objective: To evaluate the effect of some different water temperatures on growth of aquatic plants (Salvinia natans and Ceratophyllum demersum. Methods: The aquatic plants were brought from Shatt Al-Arab River in 2016. Equal weights of aquatic plants were aquacultured in aquaria, and were exposed to three different temperatures ( 12, 22 and 32 °C. Results: The results showed that the two plants did not show significant differences with respect to their effects on pH and electrical conductivity values. Time and temperature did not affect the values of pH and electrical conductivity. The values of dissolved oxygen was significantly influenced with variation of time and temperature, while the two plants did not have significant differences on dissolved oxygen values, nitrate ion concentration and was not significantly influenced with variation of plant species or temperature or time. Plant species and temperature significantly affected phosphate ion concentration, while the time did not significantly influence the concentration of phosphate ion. Chlorophyll a content and biomass were significantly influenced with the variation of plant species, and temperature . Conclusions: Aquatic plants has a species specific respond to temperatures change in their environment. Water plant, Ceratophyllum demersum is more tolerant to temperatures change than Salvinia natans.

The Reproductive Morphology and Physiological Age Grading of the Female Salvinia Weevil, Calder and Sands

OpenAIRE

Lee Eisenberg; Seth Johnson; Michael J Grodowitz

2018-01-01

The morphology of the female Cyrtobagous salviniae Calder and Sands reproductive system is similar to other weevil species being meroistic and telotrophic. The reproductive system is composed of 2 ovaries each containing 2 ovarioles where the follicles mature. A physiological age grading system was developed where the continuum of ovarium development was divided into 2 nulliparous and 3 parous classes. This was based on the differentiation of the ovarioles, presence, and appearance of follicu...

The Mitchell Spectrograph: Studying Nearby Galaxies with the VIRUS Prototype

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Guillermo A. Blanc

2013-01-01

Full Text Available The Mitchell Spectrograph (a.k.a. VIRUS-P on the 2.7 m Harlan J. Smith telescope at McDonald Observatory is currently the largest field of view (FOV integral field unit (IFU spectrograph in the world (1.7′×1.7′. It was designed as a prototype for the highly replicable VIRUS spectrograph which consists of a mosaic of IFUs spread over a 16′ diameter FOV feeding 150 spectrographs similar to the Mitchell. VIRUS will be deployed on the 9.2 meter Hobby-Eberly Telescope (HET and will be used to conduct the HET Dark Energy Experiment (HETDEX. Since seeing first light in 2007 the Mitchell Spectrograph has been widely used, among other things, to study nearby galaxies in the local universe where their internal structure and the spatial distribution of different physical parameters can be studied in great detail. These observations have provided important insight into many aspects of the physics behind the formation and evolution of galaxies and have boosted the scientific impact of the 2.7 meter telescope enormously. Here I review the contributions of the Mitchell Spectrograph to the study of nearby galaxies, from the investigation the spatial distribution of dark matter and the properties of supermassive black holes, to the studies of the process of star formation and the chemical composition of stars and gas in the ISM, which provide important information regarding the formation and evolution of these systems. I highlight the fact that wide field integral field spectrographs on small and medium size telescopes can be powerful cost effective tools to study the astrophysics of galaxies. Finally I briefly discuss the potential of HETDEX for conducting studies on nearby galaxies. The survey parameters make it complimentary and competitive to ongoing and future surveys like SAMI and MANGA.

The State of Educational Technology: Responses to Mitchell.

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Agostino, Andrew; And Others

1989-01-01

Presents eight responses to an article in a previous issue by Mitchell, "The Future of Educational Technology Is Past." Highlights include the theory of educational technology, the future of the field of educational technology, cybernetics, educational psychology, systems theory, the role of teachers, control systems, computer assisted…

Antibacterial Chemical Constituent and Antiseptic Herbal Soap from Salvinia auriculata Aubl.

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Samia Lima

2013-01-01

Full Text Available The bioassay-guided isolation of the active extract of Salvinia auriculata Aubl. led to the separation of three main compounds, characterized as stigmasterone, stigmasterol, and friedelinol. The pure form of diketosteroid presented a potential antibacterial activity with a minimum inhibitory concentration (MIC value of 0.01 mg mL−1 against Staphylococcus aureus isolated from animals with mastitis infections. The active extract also showed a similar result to that previously obtained with pure diketosteroid when tested with the same isolates. The present study’s results demonstrate the potential of this plant as an excipient for the production of antibacterial soaps aimed at controlling bovine mastitis infections, especially on small farms.

Coleoptera associated with macrophytes of the genus Salvinia in four oxbow lakes in two river basins in southeast Brazil.

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Paula-Bueno, M C; Fonseca-Gessner, A A

2015-11-01

Macrophytes in oxbow lakes represent an important substrate for the Coleoptera. Two oxbow lakes the Rio Paranapanema were studied and the other two Rio Mogi-Guaçu, in the State de São Paulo, Brasil. In this study, there is greater similarity between the communities of Coleoptera of lakes greater connectivity with the main river channel or the difference in the species of Salvinia collected in the lakes studied interferes Coleoptera fauna that uses as substrate. A total of 9,222 specimens of Coleoptera were collected and identified in 10 families and 40 genera. The analysis MDS for abundance of Coleoptera showed the grouping of the oxbow lakes the Paranapanema River and a distancing the oxbow lakes the Mogi-Guaçu. The PERMANOVA test did not reveal any difference in the fauna between the wet and dry periods. It was concluded that the connectivity between river and lake is not decisive for the richness and abundance of aquatic fauna of Coleoptera. Therefore, the richness and abundance of aquatic Coleoptera associated vary with the species of Salvinia used as substrate.

Interação das lesões causadas pela sarna-da-macieira (Venturia inaequalis na capacidade de infestação dos frutos por lagartas de Grapholita molesta (Lepidoptera: Tortricidae

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Oscar Arnaldo Batista Neto e Silva

2011-12-01

Full Text Available Em monitoramentos de pragas realizados na cultura da macieira foram observadas maiores infestações da mariposa oriental (Grapholita molesta em frutos provenientes de pomares com maior incidência de lesões causadas pela sarna-da-macieira (Venturia inaequalis. Para validar esta observação, conduziu-se um experimento em laboratório com o objetivo de verificar a influência de lesões da sarna da macieira em frutos, na capacidade de infestação por G. molesta. Foram utilizados frutos (n=200 de macieira da variedade Gala com sintomas da sarna (n=100 e frutos sadios (n=100. Uma lagarta recém-eclodida foi inoculada em cada fruto e a avaliação foi realizada 10 dias após a infestação, determinando-se o número de lagartas que conseguiram penetrar nos frutos. Houve diferença significativa na capacidade de penetração das lagartas associado a presença de lesões da sarna (87% quando comparado com frutos sadios (61%. Conclui-se que frutos de maçã da cv. Gala atacados por Venturia inaequalis são mais infestados por lagartas de primeiro ínstar de Grapholita molesta.

Efficiency of aquatic macrophytes to treat Nile tilapia pond effluents

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Henry-Silva Gustavo Gonzaga

2006-01-01

Full Text Available The effluents from fish farming can increase the quantity of suspended solids and promote the enrichment of nitrogen and phosphorus in aquatic ecosystems. In this context, the aim of this work was to evaluate the efficiency of three species of floating aquatic macrophytes (Eichhornia crassipes, Pistia stratiotes and Salvinia molesta to treat effluents from Nile tilapia culture ponds. The effluent originated from a 1,000-m² pond stocked with 2,000 male Nile tilapia Oreochromis niloticus. The treatment systems consisted of 12 experimental tanks, three tanks for each macrophyte species, and three control tanks (without plants. Water samples were collected from the: (i fish pond source water, (ii effluent from fish pond and (iii effluents from the treatment tanks. The following water variables were evaluated: turbidity, total and dissolved nitrogen, ammoniacal-N, nitrate-N, nitrite-N, total phosphorus and dissolved phosphorus. E. crassipes and P. stratiotes were more efficient in total phosphorus removal (82.0% and 83.3%, respectively and total nitrogen removal (46.1% and 43.9%, respectively than the S. molesta (72.1% total phosphorus and 42.7% total nitrogen and the control (50.3% total phosphorus and 22.8% total nitrogen, indicating that the treated effluents may be reused in the aquaculture activity.

Coleoptera associated with macrophytes of the genus Salvinia in four oxbow lakes in two river basins in southeast Brazil

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M. C. Paula-Bueno

Full Text Available Abstract Macrophytes in oxbow lakes represent an important substrate for the Coleoptera. Two oxbow lakes the Rio Paranapanema were studied and the other two Rio Mogi-Guaçu, in the State de São Paulo, Brasil. In this study, there is greater similarity between the communities of Coleoptera of lakes greater connectivity with the main river channel or the difference in the species of Salvinia collected in the lakes studied interferes Coleoptera fauna that uses as substrate. A total of 9,222 specimens of Coleoptera were collected and identified in 10 families and 40 genera. The analysis MDS for abundance of Coleoptera showed the grouping of the oxbow lakes the Paranapanema River and a distancing the oxbow lakes the Mogi-Guaçu. The PERMANOVA test did not reveal any difference in the fauna between the wet and dry periods. It was concluded that the connectivity between river and lake is not decisive for the richness and abundance of aquatic fauna of Coleoptera. Therefore, the richness and abundance of aquatic Coleoptera associated vary with the species of Salvinia used as substrate.

The influence of Eucalyptus plantations on the macrofauna associated with Salvinia auriculata in Southeast Brazil

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M. CALLISTO

Full Text Available The influence of Eucalyptus plantations on the structure and composition of macroinvertebrate communities associated with the aquatic fern Salvinia auriculata Aublet were investigated in a high altitude lake bordered by either secondary Atlantic forest or Eucalyptus plantations. Comparisons of the diversity of Chironomidae (Diptera, Insecta larvae in the littoral zone between these two vegetation types showed higher diversity of larvae in waters bordered by Eucalyptus. The results demonstrated that the predominance of carnivorous taxa among the macroinvertebrate fauna appears to be the major controlling factor for limiting diversity in lake areas bordered by Eucalyptus.

The influence of Eucalyptus plantations on the macrofauna associated with Salvinia auriculata in Southeast Brazil

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CALLISTO M.

2002-01-01

Full Text Available The influence of Eucalyptus plantations on the structure and composition of macroinvertebrate communities associated with the aquatic fern Salvinia auriculata Aublet were investigated in a high altitude lake bordered by either secondary Atlantic forest or Eucalyptus plantations. Comparisons of the diversity of Chironomidae (Diptera, Insecta larvae in the littoral zone between these two vegetation types showed higher diversity of larvae in waters bordered by Eucalyptus. The results demonstrated that the predominance of carnivorous taxa among the macroinvertebrate fauna appears to be the major controlling factor for limiting diversity in lake areas bordered by Eucalyptus.

Mindblindness: metaphor and neuroaesthetics in the works of Silas Weir Mitchell and Simon Baron-Cohen.

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Swenson, Kristine

2013-01-01

Silas Weir Mitchell's novel, When All the Woods are Green (1894), acknowledges the medical use of mindblindness (agnosia) but also casts it as a developmental disorder, bringing it provocatively close to how current neuropsychologist, Simon Baron-Cohen and his followers use the term in relation to autism. This chapter traces the mindblindess metaphor in the works of Mitchell and Baron-Cohen to show how mindblindness informs the larger paradigms by which they theorize the brain. This analysis suggests that Baron-Cohen, and thus much current thinking about autism spectrum conditions, is influenced by Victorian-era cultural assumptions and neurosexism, a connection that calls for scrutiny of Baron-Cohen's current models of the brain and theories of autism. This chapter also demonstrates the extent to which Mitchell used fiction and advocated writing as neuroaesthetic tools and thus bridged in his work cognitive science and aesthetics--a connection that current scholars of neuroaesthetics are now theorizing. © 2013 Elsevier B.V. All rights reserved.

The use of Salvinia auriculata as a bioindicator in aquatic ecosystems: biomass and structure dependent on the cadmium concentration

OpenAIRE

Wolff,G.; Pereira,GC; Castro,EM; Louzada,J; Coelho,FF

2012-01-01

This study shows, in a multiple-level approach, the responses of Salvinia auriculata to Cd pollution in aquatic ecosystems. S. auriculata ramets were cultivated in nutrient solution and subjected to five treatments with Cd for ten days. At the end of the experiment, the number of new ramets and the dry biomass were determined. For ultrastructural observations, the leaves of S. auriculata were analyzed using a scanning electron microscope and transmission electron microscope. At the end of the...

OBITUARY: Sir William Mitchell Physicist and enthusiast for science

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Cowley, R

2002-01-01

"William Mitchell was successively head of Physics at Reading and Oxford universities, and Chairman of the Science and Engineering Research Council from 1985 to 1990. He is largely responsible for the excellent neutron and X-ray facilities that are available for research by scientists in the UK. He was one of the first to realise that these uniquely powerful facilities would be essential tools not only for physicists but also for chemists, biologists, materials scientists and engineers" (1 page).

Rakesh K. Kapania named Norris and Laura Mitchell Professor of Aerospace Engineering

OpenAIRE

Crumbley, Liz

2008-01-01

Rakesh K. Kapania, a professor in the Department of Aerospace and Ocean Engineering in the College of Engineering at Virginia Tech, was appointed the Norris and Laura Mitchell Professor of Aerospace Engineering by the Virginia Tech Board of Visitors during the board's quarterly meeting March 31.

Scratch that: MIT's Mitchel Resnick Says Kids Should Do It for Themselves

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Traylor, Scott

2008-01-01

Mitchel Resnick is a researcher, inventor, and professor at MIT's Media Laboratory in Cambridge, MA, and the founder of the Lifelong Kindergarten Group at MIT. He is the lead innovator behind many cutting-edge learning technologies and projects for children, including the Computer Clubhouse, PicoCrickets, and the wildly successful consumer…

PEMANFAATAN TANAMAN GULMA KAYAMBANG (Salvinia Molesta) SEBAGAI BAHAN PAKAN AYAM BURAS MELALUI ENERGI METABOLISMENYA

OpenAIRE

Akhadiarto, Sindu

2018-01-01

Kayambang is water seed from Indonesia which can be used for animal feed. In village it is usually used for duck and village fowl (kampong chicken). Kayambang grows very much on water surface and have hight nutrition include energy and protein. Animal feed are used for growth requirement and to support sintetics reactionsform its body. Energy from the feed is not used for animal infull. In each ingredient at least has 4 kind of energy : Gross Energy, Digestible energy, Metobalic energy and ne...

Performance of Azolla caroliniana Willd. and Salvinia auriculata Aubl. on fish farming effluent.

Science.gov (United States)

Toledo, J J; Penha, J

2011-02-01

The increasing release of untreated fish farming effluents into water courses that flow to the Pantanal wetlands in Mato Grosso (Brazil) may drive this ecosystem to eutrophication. Therefore, the growth of Azolla caroliniana Willd. and Salvinia auriculata Aubl. in fish farming effluent and their effect on its quality were evaluated for 48 days in a greenhouse. The results were compared to those obtained in a nutrient rich solution (Hoagland ½ medium). Azolla caroliniana showed lower relative growth rate in fish farming effluent (0.020 d-1) than in Hoagland ½ medium (0.029 d-1). However, S. auriculata grew slightly better in fish farming effluent (0.030 d-1) than in Hoagland ½ medium (0.025 d-1). The species apparently contributed to reduce nitrate and phosphate concentration in Hoagland ½ medium. However, in fish farming effluent, only electrical conductivity and pH were reduced by plants compared to the control without plants. Thus, A. caroliniana and S. auriculata show low potential for improving effluent quality.

Thinking outside the Chinese Box: David Mitchell and Murakami Haruki’s subversion of stereotypes about Japan

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Chikako Nihei

2009-12-01

Full Text Available Japan has often been portrayed by orientalist stereotypes, as famously framed by Edward Said, that were mainly constituted within Europe and North America. There are two distinct streams of orientalist discourse around Japan: traditional Orientalism and techno-Orientalism. Here the West speaks of the Other/the non-West rather than allowing it to speak for itself. In regards to the discourse of ‘Otherness’, another interesting phenomenon is Japan’s self-Orientalising: through the internalisation of the Western Orientalist discourse, Japan identifies itself and constructs its own subjectivity. In his literary works, the author David Mitchell attempts to subvert the conventional orientalist approach to describe Japan while concurrently maintaining his position as a British observer. He makes use of Western perspectives to cater to his Western readers’ preference for Japan’s traditional and cultural elements, and yet at the same time attempts to subvert stereotypes. Mitchell’s approach is reminiscent of Japanese author Murakami Haruki’s use of both ‘Japaneseness’ and ‘un-Japaneseness’ in his works. Mitchell also learnt the importance of the use of the subjective narrative voice from Murakami. In this article, I examine how David Mitchell, as a western author, attempts to go beyond orientalist stereotypes, and how his writing is influenced by Murakami Haruki.

Airborne gamma-ray spectrometer and magnetometer survey, Mitchell Quadrangle, South Dakota. Final report

International Nuclear Information System (INIS)

1981-04-01

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over eleven (11) 2 0 x 1 0 NTMS quadrangles located in the states of Minnesota and Wisconsin and seven (7) 2 0 x 1 0 NTMS quadrangles in North and South Dakota. The quadrangles located within the North and South Dakota survey area include Devil's Lake, New Rockford, Jamestown, Aberdeen, Huron, Mitchell, and Sioux Falls. This report discusses the results obtained over the Mitchell map area. The purpose of this program is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States. Traverse lines were flown in an east-west direction at a line spacing of six (6) miles. Tie lines were flown north-south approximately twenty-four (24) miles apart. A total of 21,481 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 1479 line miles are in this quadrangle

Influência da chuva na eficiência de diquat no controle de Salvinia auriculata, Pistia stratiotes e Eichhornia crassipes Influence of rainfall on diquat efficiency in controlling Salvinia auriculata, Pistia stratiotes and Eichhornia crassipes

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G.S.F Souza

2011-12-01

Full Text Available O objetivo deste estudo foi avaliar a influência da ocorrência de chuva em diferentes períodos de tempo após a aplicação do herbicida diquat, em sua eficiência de controle sobre plantas de Salvinia auriculata, Pistia stratiotes e Eichhornia crassipes. Foram estudadas chuvas de 10 mm, aplicadas durante 5min, em diferentes períodos de tempo (0h, 0,25h, 0,5h, 1h, 2h, 4h, 6h, 12h e não simulação de chuva após a aplicação de diquat, na formulação Reward, a 600 g i.a. ha-1 (2,5 L p.c. ha-1. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições. As plantas foram avaliadas visualmente aos 3, 5, 7 e 12 dias após a aplicação (DAA, sendo os resultados submetidos à análise de variância pelo teste F, e as médias dos tratamentos, comparadas pelo teste de Tukey (pThe aim of this study was to evaluate the influence of rainfall events at different time periods after application of diquat on the efficiency of this herbicide in controlling Salvinia auriculata, Pistia stratiotes and Eichhornia crassipes. Simulation of 10 mm rainfall applied during 5 min was studied at different time periods (0h, 0.25h, 0.5h, 1h, 2h, 4h, 6h, 12h and no rain simulation after application of diquat in Reward formulation, 600 g a.i. ha-1 (2.5Lcp ha-1. The experiment was arranged in a completely randomized design with four replications. Plants were evaluated at 3, 5, 7, and 12 days after application (DAA, and the results submitted to analysis of variance by the F test and the treatment means compared by the Tukey test (p < 0.05. Diquat provided excellent control of all the species studied, regardless of the time period for rain occurrence after application, even when immediately after application.

Comunicação científica eficiência de inseticidas à base de nim no controle de Grapholita molesta (Busck, 1916 (Lepidoptera: Tortricidae Efficiency of neem insecticides in the control of Grapholita molesta (Busck, 1916 (Lepidoptera: Tortricidae

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Oderlei Bernardi

2010-03-01

Full Text Available O objetivo foi avaliar a eficiência de inseticidas à base de nim no controle da mariposa-oriental G. molesta em laboratório. A dieta artificial foi cortada em cubos e imersa nas caldas dos respectivos tratamentos; em seguida, lagartas recém-eclodidas foram transferidas para tubos de vidro, contendo os cubos de dieta tratados. Os produtos testados foram: NeemAzal-T/S®, Dalneem emulsionável®, Organic Neem® e Natuneem Agrícola® na concentração de 0,5% do produto comercial (p.c. em comparação com o inseticida químico fenitrotion (Sumithion 500 CE® a 0,15% p.c. e uma testemunha (água. Os inseticidas NeemAzal-T/S® e Dalneem emulsionável® apresentaram a mortalidade de 100% das lagartas, sendo eficientes no controle do inseto em condições de laboratório. Organic Neem® e Natuneem Agrícola® demonstraram menor atividade inseticida, ocasionando mortalidade de 73,5% e 22,5%, respectivamente; no entanto, afetaram significativamente a viabilidade larval.The objective was to evaluate the efficiency of neem insecticides in the control of oriental fruit moth Grapholita molesta at laboratory. The artificial diet was cut in cubes and immersed in the syrups of the respective treatments, soon afterwards, recently-emerged caterpillars were transferred, for glass tubes, containing the diet cubes treated. The tested products were: NeemAzal-T/S®, Dalneem emulsionável®, Organic Neem® and Natuneem Agrícola® in the concentration of 0.5% of the commercial product (p.c. compared with the chemical insecticide fenitrotion (Sumithion 500 CE® to 0.15% p.c. and a witness (water. The insecticides NeemAzal-T/S® and Dalneem emulsionável® presented a mortality of 100% of the caterpillars being efficient in the control of the insect in laboratory conditions. Organic Neem® and Natuneem Agrícola® demonstrated lower insecticidal activity, causing mortality of 73.5% and 22.5% respectively, however, significantly affect the larval viability.

Meeting the Challenge of Systemic Change in Geography Education: Lucy Sprague Mitchell's Young Geographers

Science.gov (United States)

Downs, Roger M.

2016-01-01

The history of K-12 geography education has been characterized by recurrent high hopes and dashed expectations. There have, however, been moments when the trajectory of geography education might have changed to offer students the opportunity to develop a thorough working knowledge of geography. Lucy Sprague Mitchell's geography program developed…

Performance of Azolla caroliniana Willd. and Salvinia auriculata Aubl. on fish farming effluent

Directory of Open Access Journals (Sweden)

JJ. Toledo

Full Text Available The increasing release of untreated fish farming effluents into water courses that flow to the Pantanal wetlands in Mato Grosso (Brazil may drive this ecosystem to eutrophication. Therefore, the growth of Azolla caroliniana Willd. and Salvinia auriculata Aubl. in fish farming effluent and their effect on its quality were evaluated for 48 days in a greenhouse. The results were compared to those obtained in a nutrient rich solution (Hoagland ½ medium. Azolla caroliniana showed lower relative growth rate in fish farming effluent (0.020 d-1 than in Hoagland ½ medium (0.029 d-1. However, S. auriculata grew slightly better in fish farming effluent (0.030 d-1 than in Hoagland ½ medium (0.025 d-1. The species apparently contributed to reduce nitrate and phosphate concentration in Hoagland ½ medium. However, in fish farming effluent, only electrical conductivity and pH were reduced by plants compared to the control without plants. Thus, A. caroliniana and S. auriculata show low potential for improving effluent quality.

Efeitos da toxicidade do zinco em folhas de Salvinia auriculata cultivadas em solução nutritiva Effects of zinc toxicity on leaves of Salvinia auriculata cultivated in nutrient solution

Directory of Open Access Journals (Sweden)

G. Wolff

2009-03-01

Full Text Available A macrófita aquática Salvinia auriculata tem sido utilizada em vários programas de monitoramento em corpos d'água passíveis de eutrofização, sendo considerada uma planta bioindicadora. Contudo, sabe-se que a salvínia também tem um potencial fitorremediador, acumulando em seus tecidos concentrações consideráveis de poluentes. Com isso, o objetivo deste trabalho foi avaliar o potencial fitorremediador e bioindicador dessa planta, avaliando as características morfológicas da salvínia quando submetida a doses excessivas de zinco (Zn, bem como o teor desse metal acumulado em seus tecidos. Os indivíduos foram coletados em águas livres de contaminação e cultivados sob condições controladas, em vasos com solução nutritiva, em casa de vegetação, e submetidos aos tratamentos com zinco na forma de ZnSO4. 7H2O, nas seguintes concentrações: 0; 2,5; 5,0; 7,5; e 10,0 mg L-1. As alterações morfológicas foram observadas diariamente e, após dez dias de exposição dos vegetais ao zinco, procedeu-se à colheita das plantas. As plantas colhidas foram lavadas, secas, pesadas, moídas e digeridas em solução com ácido nítrico e ácido perclórico, obtendo-se extratos para determinação dos teores de zinco por espectrofotometria de absorção atômica. Os resultados indicaram que S. auriculata apresentou danos morfológicos, com o desenvolvimento de lesões e necroses marginais nas folhas em concentrações de zinco na solução superiores à permitida pela legislação, porém não diferiram no que se refere ao crescimento populacional. Em relação ao acúmulo, a absorção de zinco pelas plantas aumentou proporcionalmente com a concentração do metal em solução. O zinco, quando em concentrações elevadas, tornou-se tóxico às plantas, sendo as alterações morfológicas de plantas de S. auriculata de fácil detecção, podendo ser utilizadas no biomonitoramento de ecossistemas aquáticos contaminados com zinco.The aquatic

Remaining Safe and Avoiding Dangers Online: A Social Media Q&A with Kimberly Mitchell

Science.gov (United States)

Prevention Researcher, 2010

2010-01-01

The news media is often full of stories about the dangers of social media, including such concerns as cyberbullying and sexting. In this article, Kimberly Mitchell, a researcher noted for her experience on youth internet victimization, answers questions about the risks of social media and how we can keep youth safe online. Questions in this Q&A…

The Reproductive Morphology and Physiological Age Grading of the Female Salvinia Weevil, Calder and Sands

Directory of Open Access Journals (Sweden)

Lee Eisenberg

2018-01-01

Full Text Available The morphology of the female Cyrtobagous salviniae Calder and Sands reproductive system is similar to other weevil species being meroistic and telotrophic. The reproductive system is composed of 2 ovaries each containing 2 ovarioles where the follicles mature. A physiological age grading system was developed where the continuum of ovarium development was divided into 2 nulliparous and 3 parous classes. This was based on the differentiation of the ovarioles, presence, and appearance of follicular relics, cuticle hardness/coloration, and fat body quantity/appearance. High correlation occurred between the parous classes and number of eggs produced where the P3 class had over 9-fold higher number of eggs in comparison with the P1 class. Mean number of eggs produced for each parous class was significantly different, however, overlap occurred. Such a system enables a determination of the past, present, and future reproductive status of field populations and mass-rearing colonies.

Third report on the Oak Ridge K-25 Site Biological Monitoring and Abatement Program for Mitchell Branch

Energy Technology Data Exchange (ETDEWEB)

Hinzman, R.L. [ed.; Adams, S.M.; Ashwood, T.L. [Oak Ridge National Lab., TN (United States)] [and others

1995-08-01

As a condition of the modified National Pollutant Discharge Elimination System (NPDES) permit issued to the Oak Ridge Gaseous Diffusion Plant (ORGDP; now referred to as the Oak Ridge K-25 Site) on September 11, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for the receiving stream (Mitchell Branch or K-1700 stream). On October 1, 1992, a renewed NPDES permit was issued for the K-25 Site. A biological monitoring plan was submitted for Mitchell Branch, Poplar Creek, Poplar Creek Embayment of the Clinch River and any unnamed tributaries of these streams. The objectives of BMAP are to (1) demonstrate that the effluent limitations established for the Oak Ridge K-25 Site protect and maintain the use of Mitchell Branch for growth and propagation of fish and other aquatic life and (2) document the effects on stream biota resulting from operation of major new pollution abatement facilities, including the Central Neutralization Facility (CNF) and the Toxic Substances Control Act (TSCA) incinerator. The BMAP consists of four tasks: (1) toxicity monitoring; (2) bioaccumulation monitoring; (3) assessment of fish health; and (4) instream monitoring of biological communities, including benthic macroinvertebrates and fish. This document, the third in a series, reports on the results of the Oak Ridge K-25 Site BMAP; it describes studies that were conducted over various periods of time between June 1990 and December 1993, although monitoring conducted outside this time period is included, as appropriate.

Third report on the Oak Ridge K-25 Site Biological Monitoring and Abatement Program for Mitchell Branch

International Nuclear Information System (INIS)

Hinzman, R.L.

1995-08-01

As a condition of the modified National Pollutant Discharge Elimination System (NPDES) permit issued to the Oak Ridge Gaseous Diffusion Plant (ORGDP; now referred to as the Oak Ridge K-25 Site) on September 11, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for the receiving stream (Mitchell Branch or K-1700 stream). On October 1, 1992, a renewed NPDES permit was issued for the K-25 Site. A biological monitoring plan was submitted for Mitchell Branch, Poplar Creek, Poplar Creek Embayment of the Clinch River and any unnamed tributaries of these streams. The objectives of BMAP are to (1) demonstrate that the effluent limitations established for the Oak Ridge K-25 Site protect and maintain the use of Mitchell Branch for growth and propagation of fish and other aquatic life and (2) document the effects on stream biota resulting from operation of major new pollution abatement facilities, including the Central Neutralization Facility (CNF) and the Toxic Substances Control Act (TSCA) incinerator. The BMAP consists of four tasks: (1) toxicity monitoring; (2) bioaccumulation monitoring; (3) assessment of fish health; and (4) instream monitoring of biological communities, including benthic macroinvertebrates and fish. This document, the third in a series, reports on the results of the Oak Ridge K-25 Site BMAP; it describes studies that were conducted over various periods of time between June 1990 and December 1993, although monitoring conducted outside this time period is included, as appropriate

Pigmentos lipossolúveis e hidrossolúveis em plantas de salvínia sob toxicidade por cromo Liposoluble and hydrosoluble pigments in salvinia under chromium toxicity

Directory of Open Access Journals (Sweden)

P.F. Pereira

2012-12-01

Full Text Available Devido à intensa utilização industrial, o cromo é considerado um importante poluente ambiental. O presente trabalho objetivou determinar os teores de pigmentos hidro e lipossolúveis em plantas de salvínia expostas a concentrações crescentes de Cr, visando estabelecer parâmetros bioquímicos para utilização dessa macrófita em programas de biomonitoramento e/ou fitorremediação da poluição causada por esse poluente metálico em ambientes aquáticos. As plantas foram submetidas a concentrações crescentes de Cr e avaliadas após quatro, seis e dez dias de tratamento. Os resultados dos ensaios permitiram concluir que plantas de salvínia sob condições de estresse por Cr apresentam reduções nas concentrações das clorofilas a, b e total e, em contraste, aumentos nas concentrações de antocianinas totais. Embora a concentração de carotenoides totais não tenha sido alterada em resposta ao Cr, as variações nas concentrações dos demais pigmentos lipossolúveis e dos pigmentos hidrossolúveis observadas nas folhas das plantas de salvínia podem ser utilizadas como parâmetros bioquímicos de biomonitoramento da poluição causada por esse elemento metálico em ambientes aquáticos.Due to widespread industrial use, chromium is considered a serious environmental pollutant. This study aimed to determine the content of hydrosoluble and liposoluble pigments in salvinia plants exposed to increasing concentrations of Cr, to establish biochemical parameters for the use of macrophyta in pollution bio-monitoring programs and/or phyto-remediation in aquatic environments by this pollutant metal. The plants were exposed to increasing concentrations of Cr and evaluated after four, six, and ten days of treatment. The test results showed that salvinia plants under stress conditions for Cr exhibit decreases in the concentrations of chlorophylls a, b, and total, and, in contrast, increases in anthocyanin concentrations. Although the

America's First Carl Sagan: Ormsby MacKnight Mitchel, Pre-Civil War Astronomer and Lecturer on the Cosmos

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Osterbrock, D. E.

2002-12-01

In the years before television, videos, radio. movies, or even loudspeakers, Ormsby MacKnight Mitchel (1809-1862) was the best-known popularizer of astronomy and the scientific study of the universe in nineteenth-century America. Each winter he traveled the country by railroad, steamer, and stagecoach, speaking to large paying crowds in principal cities from Boston, New York, and Philadelphia through Cincinnati to New Orleans on the cosmos and our place in it, with special attention to possible inhabitants of planers orbiting other stars. Mitchel had much the same attraction as Sagan did in our time, and awakened many people's interest in astronomy through the human angle, as Carl did. His argument was simple, and according to Frank Triplett goes back thousands of years: other stars are suns, our sun has planets with people on one of them, why should not other stars also have populated planets? But first Mitchel, like Sagan, always explained clearly the discoveries of astronomy that fleshed out this argument with facts. He emphasized the ``clockwork universe", governed by gravity, that Newton, Herschel, and Laplace had investigated and found to be stable. There were many other similarities between these two great popularizers. Mitchel's base was the Cincinnati Observatory, which he had founded, raising the funds for it himself in small contributions from hundreds of ``members", which he publicised as far more democratic than support from European kings and lords. He went abroad to get a telescope, and finally found his ``Great [12-inch] Refractor" in Munich, with help from John Quincy Adams, Astronomer Royal George Biddle Airy, and Paris Observatory Director Fracois Arago, in spite of a rebuff by President John Tyler. These episodes have similarities in Sagan's lobbying NASA for close-up images of Mars. Views of other American professional astronomers on life on other worlds will also be described briefly, from Denison Olmsted, Elias Loomis, Charles A. Young (who

A Misleading Review of Response Bias: Comment on McGrath, Mitchell, Kim, and Hough (2010)

Science.gov (United States)

Rohling, Martin L.; Larrabee, Glenn J.; Greiffenstein, Manfred F.; Ben-Porath, Yossef S.; Lees-Haley, Paul; Green, Paul; Greve, Kevin W.

2011-01-01

In the May 2010 issue of "Psychological Bulletin," R. E. McGrath, M. Mitchell, B. H. Kim, and L. Hough published an article entitled "Evidence for Response Bias as a Source of Error Variance in Applied Assessment" (pp. 450-470). They argued that response bias indicators used in a variety of settings typically have insufficient data to support such…

Effects of gamma radiation on pupae of oriental fruit moth, Grapholita molesta (Busck)(Lepidoptera: Tortricidae)

International Nuclear Information System (INIS)

Arthur, Valter; Silva, Lucia C.A S.; Modolo, Deborah M.; Leandro, Rodrigo Sebastiao Rossi; Arthur, Paula B.

2011-01-01

As insects increase in radio tolerance as they develop and usually several developmental stages of pest may present in fresh shipped commodity, it is important to know the radiation susceptibility of stages of the target insect before the establishment of ionizing radiation quarantine treatments. This study was performed to determine the radio tolerance of pupae of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidade), to gamma radiation. This specie is considered as on of the most serious worldwide pests for temperate fruits, especially peaches. Pupae of 3 days old were exposed to 0 (control), 25, 50, 75, 100, 125, 150, 175, 200, 250, 300 and 350 Gy of gamma radiation of source Cobalt-60, type Gammacell-220 at dose rate of 0,508 kGy/hour. Each treatment had 4 repetitions with 10 pupae in the total 40 pupae per treatment. Surviving pupae allowed to feed on an artificial diet. After irradiation the insects were keep in room with climatic conditions of 25 ±5 deg C and 70 ±5% RH. The results showed that the sterilizing dose to adults was 200Gy and that the dose of 350Gy was not sufficient to kill all pupae of insects. (author)

First report on the Oak Ridge K-25 Site Biological Monitoring and Abatement Program for Mitchell Branch

Energy Technology Data Exchange (ETDEWEB)

Smith, J.G. [ed.; Adams, S.M.; Kszos, L.A.; Ryon, M.G.; Southworth, G.R.; Loar, J.M.

1993-08-01

A modified National Pollutant Discharge Elimination System permit was issued to the Oak Ridge Gaseous Diffusion Plant (now referred to as the Oak Ridge K-25 Site) on September 11, 1986. The Oak Ridge K-25 Site is a former uranium-enrichment production facility, which is currently managed by Martin Marietta Energy Systems, Inc. for the US Department of Energy. As required in Part III (L) of that permit, a plan for the biological monitoring of Mitchell Branch (K-1700 stream) was prepared and submitted for approval to the US Environmental Protection Agency and the Tennessee Department of Environment and Conservation [formerly the Tennessee Department of Health and Environment (Loar et al. 1992b)]. The K-25 Site Biological Monitoring and Abatement Program (BMAP) described biomonitoring activities that would be conducted over the duration of the permit. Because it was anticipated that the composition of existing effluent streams entering Mitchell Branch would be altered shortly after the modified permit was issued, sampling of the benthic invertebrate and fish communities (Task 4 of BMAP) was initiated in August and September 1986 respectively.

First report on the Oak Ridge K-25 Site Biological Monitoring and Abatement Program for Mitchell Branch

International Nuclear Information System (INIS)

Smith, J.G.; Adams, S.M.; Kszos, L.A.; Ryon, M.G.; Southworth, G.R.; Loar, J.M.

1993-08-01

A modified National Pollutant Discharge Elimination System permit was issued to the Oak Ridge Gaseous Diffusion Plant (now referred to as the Oak Ridge K-25 Site) on September 11, 1986. The Oak Ridge K-25 Site is a former uranium-enrichment production facility, which is currently managed by Martin Marietta Energy Systems, Inc. for the US Department of Energy. As required in Part III (L) of that permit, a plan for the biological monitoring of Mitchell Branch (K-1700 stream) was prepared and submitted for approval to the US Environmental Protection Agency and the Tennessee Department of Environment and Conservation [formerly the Tennessee Department of Health and Environment (Loar et al. 1992b)]. The K-25 Site Biological Monitoring and Abatement Program (BMAP) described biomonitoring activities that would be conducted over the duration of the permit. Because it was anticipated that the composition of existing effluent streams entering Mitchell Branch would be altered shortly after the modified permit was issued, sampling of the benthic invertebrate and fish communities (Task 4 of BMAP) was initiated in August and September 1986 respectively

The analysis of creep characteristics of the surrounding rock of the carbonaceous rock tunnel based on Singh-Mitchell model

Science.gov (United States)

Luo, Junhui; Mi, Decai; Ye, Qiongyao; Deng, Shengqiang; Zeng, Fuquan; Zeng, Yongjun

2018-01-01

Carbonaceous rock has the characteristics of easy disintegration, softening, swelling and environmental sensitivity, which belongs to soft surrounding rock, and the deformation during excavation and long-term stability of the surrounding rock of carbonaceous rock tunnel are common problems in the construction of carbonaceous rock tunnel. According to the above, the Monitor and measure the displacement, temperature and osmotic pressure of the surrounding carbonaceous rock of the tunnel of Guangxi Hebai highway. Then it based on the obtaining data to study the creep mechanism of surrounding rock using Singh-Mitchell model and predict the deformation of surrounding rock before the tunnel is operation. The results show that the Singh-Mitchell creep model can effectively analyse and predict the deformation development law of surrounding rock of tunnel without considering temperature and osmotic pressure, it can provide reference for the construction of carbonaceous rock tunnel and the measures to prevent and reinforce it..

Looking back at the John Mitchell Crouch Fellowship: the most prestigious research award of the Royal Australasian College of Surgeons.

Science.gov (United States)

Boult, Margaret; Babidge, Wendy; Pleass, Susan; Scott, David

2015-10-01

The John Mitchell Crouch Fellowship is a generous endowment made to the Royal Australasian College of Surgeons (RACS) by the young neurosurgeon's family, following his death from a brain tumour. In this article, we examine the significance and legacy of the grant since its inception in 1979. This is the highest level of research fellowship awarded by the RACS recognizing early career excellence, as part of its significant research funding programme (over $1.7 million in 2015). John Mitchell Crouch recipients have been pioneers in various areas of medicine where they have developed new technologies, established research centres, improved patient safety and military surgery and embraced evidence-based medicine. The funds they received have directly contributed to research published in numerous highly respected peer-reviewed journals such as The New England Journal of Medicine; established new laboratories, helped fund clinical trials and allowed new directions of research to be pursued. Recipients of the John Mitchell Crouch Fellowship have been recognized with many awards including 11 Australian and New Zealand Honours to date. Many other significant research funds have been subsequently bestowed, including over 120 National Health Medical Research Council (NHMRC) grants to Australian and New Zealand recipients subsequent to their Fellowship. This article also shows the range of disciplines in which the award has supported cutting-edge research leading to benefits for patients and health care. © 2015 Royal Australasian College of Surgeons.

Sometimes Pursuits Don't Pan Out: Anticipated Destinations and Other Caveats--Comment on Hom, Mitchell, Lee, and Griffeth (2012)

Science.gov (United States)

Bergman, Mindy E.; Payne, Stephanie C.; Boswell, Wendy R.

2012-01-01

Hom, Mitchell, Lee, and Griffeth (2012) presented an extensive review of employee turnover research, reconceptualized the turnover criterion to include multiple destinations, and proposed to expand the predictor domain. They illuminated the multiple destinations employees pursue following turnover. By crossing desire to remain and volitional…

Further Clarifying Proximal Withdrawal States and the Turnover Criterion Space: Comment on Hom, Mitchell, Lee, and Griffeth (2012)

Science.gov (United States)

Maertz, Carl P., Jr.

2012-01-01

In "Reviewing Employee Turnover: Focusing on Proximal Withdrawal States and an Expanded Criterion," Hom, Mitchell, Lee, and Griffeth (2012) brought together many of the most important content and process factors in the employee turnover literature. In this paper, I attempt to clarify the true contributions of this framework for the turnover area…

Mitchell Receives 2013 Ronald Greeley Early Career Award in Planetary Science: Citation

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McKinnon, William B.

2014-07-01

The Greeley Early Career Award is named for pioneering planetary scientist Ronald Greeley. Ron was involved in nearly every major planetary mission from the 1970s until his death and was extraordinarily active in service to the planetary science community. Ron's greatest legacies, however, are those he mentored through the decades, and it is young scientists whose work and promise we seek to recognize. This year's Greeley award winner is Jonathan L. Mitchell, an assistant professor at the University of California, Los Angeles (UCLA). Jonathan received his Ph.D. from the University of Chicago, and after a postdoc at the Institute for Advanced Studies in Princeton, he joined the UCLA faculty, where he holds a joint appointment in Earth and space sciences and in atmospheric sciences.

Second report on the Oak Ridge K-25 Site Biological Monitoring and Abatement Program for Mitchell Branch

Energy Technology Data Exchange (ETDEWEB)

Smith, J.G. [ed.; Adams, S.M.; Hinzman, R.L.; Kszos, L.A.; Loar, J.M.; Peterson, M.J.; Ryon, M.G.; Southworth, G.R. [Oak Ridge National Lab., TN (United States); Crumby, W.D. [Automated Sciences Group, Inc., Oak Ridge, TN (United States)

1994-03-01

On September 11, 1986, a modified National Pollutant Discharge Elimination System permit was issued for the Oak Ridge Gaseous Diffusion Plant (ORGDP; now referred to as the Oak Ridge K-25 Site), a former uranium-enrichment production facility. As required in Part III of the permit, a Biological Monitoring and Abatement Program (BMAP) was developed for the biological monitoring of Mitchell Branch (K-1700 stream) and submitted for approval to the US EPA and the Tennessee Department of Environment and Conservation. The plan described biomonitoring activities that would be conducted over the duration of the permit. The objectives of the BMAP are to demonstrate that the effluent limitations established for the Oak Ridge K-25 Site protect and maintain the use of Mitchell Branch for growth and propagation of fish and other aquatic life, and to document the effects on stream biota resulting from operation of major new pollution abatement facilities. The BMAP consists of four tasks: ambient toxicity testing; bioaccumulation studies; biological indicator studies; and ecological surveys of stream communities, including benthic macroinvertebrates and fish. This document is the second in a series of reports presenting the results of the studies that were conducted over various periods of time between August 1987 and June 1990.

Toxicity of emamectin benzoate to Cydia pomonella (L.) and Cydia molesta (Busck) (Lepidoptera: Tortricidae): laboratory and field tests.

Science.gov (United States)

Ioriatti, Claudio; Anfora, Gianfranco; Angeli, Gino; Civolani, Stefano; Schmidt, Silvia; Pasqualini, Edison

2009-03-01

Emamectin benzoate is a novel macrocyclic lactone insecticide derived from naturally occurring avermectin molecules isolated by fermentation from the soil microorganism Streptomyces avermitilis Kim & Goodfellow. The present study aims to evaluate the toxicity of emamectin benzoate to codling moth, Cydia pomonella (L.), and oriental fruit moth, C. molesta (Busck), under laboratory and semi-field conditions. Dose response bioassays showed that emamectin benzoate had a high level of intrinsic toxicity to early-stage larvae of both species, and that contact activity might contribute significantly to mortality. In the semi-field trials, residual toxicity lasted for more than 1 week. Ovicidal activity was recorded only for C. pomonella (approximately 30%), irrespective of the concentrations tested. Field trials confirmed the efficacy of emamectin benzoate on codling moth when applied at 7 day intervals. Fruit damage, both from the first and second generations, was comparable with that on treatment with chlorpyrifos-ethyl, used as a chemical reference. Emamectin benzoate may be considered a valuable tool for the control of codling moth as a component of an IPM programme. Its collective advantages are: high efficacy, lack of cross-resistance with currently used products, control of secondary pests such as oriental fruit moth and selective toxicity that spares beneficials. 2008 Society of Chemical Industry

Forest change in high-elevation forests of Mt. Mitchell, North Carolina: re-census and analysis of data collected over 40 years

Science.gov (United States)

Laura Lusk; Matt Mutel; Elaine S. Walker; Foster. Levy

2010-01-01

The Black Mountain range of western North Carolina supports some of the most extensive but threatened high-elevation forests in the southern Appalachians. Of particular note, the insect pathogen, balsam woolly adelgid (Adelges piceae Ratzeburg), has been present on Mt. Mitchell for more than 50 years. In anticipation of potential changes in forest...

Further Clarification on the Hom, Mitchell, Lee, and Griffeth (2012) Model: Reply to Bergman, Payne, and Boswell (2012) and Maertz (2012)

Science.gov (United States)

Griffeth, Rodger W.; Lee, Thomas W.; Mitchell, Terence R.; Hom, Peter W.

2012-01-01

In this article, we reply to Bergman, Payne, and Boswell (2012) and Maertz (2012), who commented on our reconceptualization of the employee turnover criterion and proximal withdrawal states (Hom, Mitchell, Lee, & Griffeth, 2012). We agree with some points (e.g., anticipated destinations) but take issue with others (e.g., turnover intentions as…

Strengthening the role of universities in addressing sustainability challenges: the Mitchell Center for Sustainability Solutions as an institutional experiment

Directory of Open Access Journals (Sweden)

David D. Hart

2015-06-01

Full Text Available As the magnitude, complexity, and urgency of many sustainability problems increase, there is a growing need for universities to contribute more effectively to problem solving. Drawing upon prior research on social-ecological systems, knowledge-action connections, and organizational innovation, we developed an integrated conceptual framework for strengthening the capacity of universities to help society understand and respond to a wide range of sustainability challenges. Based on experiences gained in creating the Senator George J. Mitchell Center for Sustainability Solutions (Mitchell Center, we tested this framework by evaluating the experiences of interdisciplinary research teams involved in place-based, solutions-oriented research projects at the scale of a single region (i.e., the state of Maine, USA. We employed a multiple-case-study approach examining the experiences of three interdisciplinary research teams working on tidal energy development, adaptation to climate change, and forest vulnerability to an invasive insect. Drawing upon documents, observations, interviews, and other data sources, three common patterns emerged across these cases that were associated with more effective problem-solving strategies. First, an emphasis on local places and short-term dynamics in social-ecological systems research provides more frequent opportunities for learning while doing. Second, iterative stakeholder engagement and inclusive forms of knowledge co-production can generate substantial returns on investment, especially when researchers are dedicated to a shared process of problem identification and they avoid framing solutions too narrowly. Although these practices are time consuming, they can be accelerated by leveraging existing stakeholder relationships. Third, efforts to mobilize interdisciplinary expertise and link knowledge with action are facilitated by an organizational culture that emphasizes mutual respect, adaptability, and solutions

The search for asbestos within the Peter Mitchell Taconite iron ore mine, near Babbitt, Minnesota.

Science.gov (United States)

Ross, Malcolm; Nolan, Robert P; Nord, Gordon L

2008-10-01

Asbestos crystallizes within rock formations undergoing intense deformation characterized by folding, faulting, shearing, and dilation. Some of these conditions have prevailed during formation of the taconite iron ore deposits in the eastern Mesabi Iron Range of Minnesota. This range includes the Peter Mitchell Taconite Mine at Babbitt, Minnesota. The mine pit is over 8 miles long, up to 1 mile wide. Fifty three samples were collected from 30 sites within areas of the pit where faulting, shearing and folding occur and where fibrous minerals might occur. Eight samples from seven collecting sites contain significant amounts of ferroactinolite amphibole that is partially to completely altered to fibrous ferroactinolite. Two samples from two other sites contain ferroactinolite degraded to ropy masses of fibers consisting mostly of ferrian sepiolite as defined by X-ray diffraction and TEM and SEM X-ray spectral analysis. Samples from five other sites contain unaltered amphiboles, however some of these samples also contain a very small number of fiber bundles composed of mixtures of grunerite, ferroactinolite, and ferrian sepiolite. It is proposed that the alteration of the amphiboles was caused by reaction with water-rich acidic fluids that moved through the mine faults and shear zones. The fibrous amphiboles and ferrian sepiolite collected at the Peter Mitchell Mine composes a tiny fraction of one percent of the total rock mass of this taconite deposit; an even a smaller amount of these mineral fragments enter the ambient air during mining and milling. These fibrous minerals thus do not present a significant health hazard to the miners nor to those non-occupationally exposed. No asbestos of any type was found in the mine pit.

Interference of plant volatiles on pheromone receptor neurons of male Grapholita molesta (Lepidoptera: Tortricidae).

Science.gov (United States)

Ammagarahalli, Byrappa; Gemeno, César

2015-10-01

In moths, sex pheromone components are detected by pheromone-specific olfactory receptor neurons (ph-ORNs) housed in sensilla trichodea in the male antennae. In Grapholita molesta, ph-ORNs are highly sensitive and specific to the individual sex pheromone components, and thus help in the detection and discrimination of the unique conspecific pheromone blend. Plant odors interspersed with a sub-optimal pheromone dose are reported to increase male moth attraction. To determine if the behavioral synergism of pheromone and plant odors starts at the ph-ORN level, single sensillum recordings were performed on Z8-12:Ac and E8-12:Ac ph-ORNs (Z-ORNs and E-ORNs, respectively) stimulated with pheromone-plant volatile mixtures. First, biologically meaningful plant-volatile doses were determined by recording the response of plant-specific ORNs housed in sensilla auricillica and trichodea to several plant odorants. This exploration provided a first glance at plant ORNs in this species. Then, using these plant volatile doses, we found that the spontaneous activity of ph-ORNs was not affected by the stimulation with plant volatiles, but that a binary mixture of sex pheromone and plant odorants resulted in a small (about 15%), dose-independent, but statistically significant, reduction in the spike frequency of Z-ORNs with respect to stimulation with Z8-12:Ac alone. The response of E-ORNs to a combination of E8-12:Ac and plant volatiles was not different from E8-12:Ac alone. We argue that the small inhibition of Z-ORNs caused by physiologically realistic plant volatile doses is probably not fully responsible for the observed behavioral synergism of pheromone and plant odors. Copyright © 2015 Elsevier Ltd. All rights reserved.

The use of Salvinia auriculata as a bioindicator in aquatic ecosystems: biomass and structure dependent on the cadmium concentration.

Science.gov (United States)

Wolff, G; Pereira, G C; Castro, E M; Louzada, J; Coelho, F F

2012-02-01

This study shows, in a multiple-level approach, the responses of Salvinia auriculata to Cd pollution in aquatic ecosystems. S. auriculata ramets were cultivated in nutrient solution and subjected to five treatments with Cd for ten days. At the end of the experiment, the number of new ramets and the dry biomass were determined. For ultrastructural observations, the leaves of S. auriculata were analyzed using a scanning electron microscope and transmission electron microscope. At the end of the experiment, the plants exposed to Cd showed damage in the leaves including necrosis and chlorosis, stomate deformations and damaged trichomes. We observed a decrease in the number of new ramets and dry biomass of S. auriculata following the increase in Cd concentration in the solution. At the ultrastructural level, leaves exposed to Cd presented chloroplast deformations and deterioration in the cell wall. All the symptoms of toxicity were directly proportionate to the concentration of Cd in the solution. The results suggests that S. auriculata shows good potential for use as a bioindicator and it can be used in the biomonitoring of aquatic ecosystems contaminated by Cd.

The use of Salvinia auriculata as a bioindicator in aquatic ecosystems: biomass and structure dependent on the cadmium concentration

Directory of Open Access Journals (Sweden)

G. Wolff

Full Text Available This study shows, in a multiple-level approach, the responses of Salvinia auriculata to Cd pollution in aquatic ecosystems. S. auriculata ramets were cultivated in nutrient solution and subjected to five treatments with Cd for ten days. At the end of the experiment, the number of new ramets and the dry biomass were determined. For ultrastructural observations, the leaves of S. auriculata were analyzed using a scanning electron microscope and transmission electron microscope. At the end of the experiment, the plants exposed to Cd showed damage in the leaves including necrosis and chlorosis, stomate deformations and damaged trichomes. We observed a decrease in the number of new ramets and dry biomass of S. auriculata following the increase in Cd concentration in the solution. At the ultrastructural level, leaves exposed to Cd presented chloroplast deformations and deterioration in the cell wall. All the symptoms of toxicity were directly proportionate to the concentration of Cd in the solution. The results suggests that S. auriculata shows good potential for use as a bioindicator and it can be used in the biomonitoring of aquatic ecosystems contaminated by Cd.

Occurrence of nutrients and plant hormones (cytokinins and IAA) in the water fern Salvinia molesta during growth and composting

Czech Academy of Sciences Publication Activity Database

Arthur, G. D.; Stirk, W. A.; Novák, Ondřej; Hekera, P.; van Staden, J.

2007-01-01

Roč. 61, č. 2 (2007), s. 137-144 ISSN 0098-8472 R&D Projects: GA MŠk(CZ) LC06034; GA ČR GA206/05/0894 Institutional research plan: CEZ:AV0Z50380511 Source of funding: V - iné verejné zdroje ; V - iné verejné zdroje Keywords : auxins * culture medium * cytokinins Subject RIV: BO - Biophysics Impact factor: 1.810, year: 2007

Modified Mitchell osteotomy alone does not have higher rate of residual metatarsalgia than combined first and lesser metatarsal osteotomy

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Shu-Jung Chen

2015-04-01

Full Text Available Transfer metatarsalgia (TM is a common forefoot disorder secondary to hallux valgus (HV. Some authors suggest that a combined lesser metatarsal osteotomy while undergoing HV surgery improves metatarsalgia, whereas others concluded that isolated HV corrective osteotomy can improve symptomatic metatarsalgia. The main purpose of this retrospective study was to compare clinical outcomes in patients with and without combined lesser metatarsal osteotomy while receiving HV correction surgery. We retrospectively reviewed the patients who underwent osteotomy for HV correction between January 2000 and December 2010. All patients underwent HV correction with modified Mitchell osteotomy. Clinical evaluations including the American Orthopaedic Foot and Ankle Society score and residual metatarsalgia were assessed, and radiographic measurements were carried out. Sixty-five patients (83 feet meeting the selection criteria were enrolled. Thirty feet receiving a combined lesser metatarsal osteotomy were classified as the combined surgery (CS group, and the others were classified as the control (CN group (53 feet. The overall rate of persistent symptomatic metatarsalgia was 19.28% after operative treatment. There were six feet with residual metatarsalgia in the CS group, and 10 feet in the CN group. There was no significant difference in the rate of persistent symptoms between the two groups (p = 0.9. According to this result, modified Mitchell osteotomy alone did not have a higher rate of residual metatarsalgia than CS. We also found that the average recovery rate of TM was about 80.7% and those patients whose preoperative HV angle was > 30° had the higher risk of residual metatarsalgia after surgery.

Eco-distribution Mapping of Invasive Weed Limnocharis flava (L. Buchenau Using Geographical Information System: Implications for Containment and Integrated Weed Management for Ecosystem Conservation

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P. C. Abhilash

2008-03-01

Full Text Available Exotic weed invasion has been identified as one of the serious environmental problem impacting the structure, composition and function of biological diversity. They are aggressive colonizers, which have flexible habitat requirement and ability to outcompete native species. The present paper describes the distribution and autecology of an exotic weed Limnocharis flava (L. Buchenau (an emergent aquatic weed of ‘Limnocharitaceae’ in Kumarakom Grama Panchayat, one of the well known tourist spot of South India famous for its vast stretches of paddy fields, wetlands and backwaters. The mapping of L. flava in the entire study area has been done using Geographical Information System (Arc-info 8.3 version. The growth and distribution pattern of L. flava were studied quantitatively. Data on distribution, abundance, biomass, ecological associations and root zone nutrient quality of water and sediment samples were collected from different sampling points of Kumarakom. The study reflected that nutrients, water depth and land use patterns were the major factors responsible for the growth and proliferation of this exotic weed. The strategies for controlling L. flava invasion are discussed in detail. If early steps are not taken to eradicate this weed, it will become a problematic weed in the same way as other noxious aquatic weeds like Salvinia molesta D. Mitch and Eichhornia crassipes (C. Martius Solms-Laub.

Potential application of digital image-processing method and fitted logistic model to the control of oriental fruit moths (Grapholita molesta Busck).

Science.gov (United States)

Zhao, Z G; Rong, E H; Li, S C; Zhang, L J; Zhang, Z W; Guo, Y Q; Ma, R Y

2016-08-01

Monitoring of oriental fruit moths (Grapholita molesta Busck) is a prerequisite for its control. This study introduced a digital image-processing method and logistic model for the control of oriental fruit moths. First, five triangular sex pheromone traps were installed separately within each area of 667 m2 in a peach orchard to monitor oriental fruit moths consecutively for 3 years. Next, full view images of oriental fruit moths were collected via a digital camera and then subjected to graying, separation and morphological analysis for automatic counting using MATLAB software. Afterwards, the results of automatic counting were used for fitting a logistic model to forecast the control threshold and key control period. There was a high consistency between automatic counting and manual counting (0.99, P model, oriental fruit moths had four occurrence peaks during a year, with a time-lag of 15-18 days between adult occurrence peak and the larval damage peak. Additionally, the key control period was from 28 June to 3 July each year, when the wormy fruit rate reached up to 5% and the trapping volume was approximately 10.2 per day per trap. Additionally, the key control period for the overwintering generation was 25 April. This study provides an automatic counting method and fitted logistic model with a great potential for application to the control of oriental fruit moths.

Entre Dissection et Empathie: le cinéma en direct de Katie Mitchell

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Erica Magris

2016-05-01

Full Text Available L’article étudie deux spectacles réalisés par la metteuse en scène britannique Katie Mitchell à la Schaubühne de Berlin – Fraulein Julie (2010, en collaboration avec le vidéaste Leo Warner, et Die Gelbe Tapete (2013 – qui, comme dans un diptyque, explorent la vie intime de deux femmes souffrantes grâce à un dispositif ciné-théâtral complexe au fonctionnement spécifique. La simultanéité de deux régimes de présence sur scène, le jeu et le tournage, ainsi que de l’action scénique et du film, produit une tension permanente entre effets contradictoires – identification/distanciation, continuité/discontinuité, éclatement/concentration – tant sur les acteurs que sur les spectateurs, en créant une interface élastique qui enveloppe la scène et la salle et permet une immersion théâtrale dans la subjectivité.

Nitrogen nutrition of Salvinia natans: Effects of inorganic nitrogen form on growth, morphology, nitrate reductase activity and uptake kinetics of ammonium and nitrate

DEFF Research Database (Denmark)

Jampeetong, Arunothai; Brix, Hans

2009-01-01

In this study we assessed the growth, morphological responses, and N uptake kinetics of Salvinia natans when supplied with nitrogen as NO3-, NH4+, or both at equimolar concentrations (500 μM). Plants supplied with only NO3- had lower growth rates (0.17 ± 0.01 g g-1 d-1), shorter roots, smaller...... leaves with less chlorophyll than plants supplied with NH4+ alone or in combination with NO3- (RGR = 0.28 ± 0.01 g g-1 d-1). Ammonium was the preferred form of N taken up. The maximal rate of NH4+ uptake (Vmax) was 6-14 times higher than the maximal uptake rate of NO3- and the minimum concentration...... for uptake (Cmin) was lower for NH4+ than for NO3-. Plants supplied with NO3- had elevated nitrate reductase activity (NRA) particularly in the roots showing that NO3- was primarily reduced in the roots, but NRA levels were generally low (NH4...

Effects of inorganic nitrogen forms on growth, morphology, nitrogen uptake capacity and nutrient allocation of four tropical aquatic macrophytes (Salvinia cucullata, Ipomoea aquatica, Cyperus involucratus and Vetiveria zizanioides)

DEFF Research Database (Denmark)

Jampeetong, Arunothai; Brix, Hans; Kantawanichkul, Suwasa

2012-01-01

This study assesses the growth and morphological responses, nitrogen uptake and nutrient allocation in four aquatic macrophytes when supplied with different inorganic nitrogen treatments (1) NH4+, (2) NO3−, or (3) both NH4+ and NO3−. Two free-floating species (Salvinia cucullata Roxb. ex Bory...... and Ipomoea aquatica Forssk.) and two emergent species (Cyperus involucratus Rottb. and Vetiveria zizanioides (L.) Nash ex Small) were grown with these N treatments at equimolar concentrations (500 M). Overall, the plants responded well to NH4+. Growth as RGR was highest in S. cucullata (0.12±0.003 d−1......) followed by I. aquatica (0.035 ±0.002 d−1), C. involucratus (0.03±0.002 d−1) and V. zizanioides (0.02±0.003 d−1). The NH4+ uptake rate was significantly higher than the NO3− uptake rate. The free-floating species had higher nitrogen uptake rates than the emergent species. The N-uptake rate differed between...

An insight into the Northern Irish Troubles in France: Teaching English as a Foreign Language through Gary Mitchell's Loyal Women (2003) along the Common European Framework

OpenAIRE

Privas-Bréauté, Virginie

2014-01-01

The pedagogical qualities of drama have recently been put to the fore especially when it comes to learning a foreign language. If we read the Common European Framework for language learning carefully, we realize that we may choose a play to facilitate language acquisition, notably at university level, when the bases are supposedly already acquired, when the knowledge of the target language needs to be strengthened. We have chosen to demonstrate that a contemporary play like Gary Mitchell's Lo...

The use of radiation induced sterility for the control of the moths Laspeyresia pomonella L. and Laspeyresia molesta B. Part of a coordinated programme on the control of lepidopterous insects by the sterile male technique

International Nuclear Information System (INIS)

Tzalev, M.

1979-05-01

Various artificial media based on wheat germ-agar were evaluated for their suitability in rearing larvae of the codling-moth Laspeyresia pomonella L. and the oriental fruit moth Laspeyresia molesta B. A medium of green apples was used as a control. All larval media evaluated for the codling-moth produced comparable results; slightly better results, however, were obtained with a medium in which a mixture of apple puree, oat germs, milk and sugar had been added, and with the green apples alone. Similar results were also obtained with the oriental fruit moth; in this instance, however, the medium containing the apple puree etc. was slightly inferior. Media under cover maintained favourable condition for larval development for more than 40 days. On the other hand, uncovered media dessicated rapidly and consequently were unfavourable for larval development. In field ecological studies it was observed that the number of oriental fruit moths in trap catches declined when the rainfall exceeded 5 mm or the temperature fell below 10 0 C

Biologia da nidificação de Megachile (Moureapis benigna Mitchell

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Frederico Teixeira

2011-11-01

Abstract. This paper describes the biology, ecology and nest architecture of Megachile (Moureapis benigna Mitchell in trap nests (NA. The NA were installed in five forest fragments of 2.1 to 920ha, and two disturbed areas (pasture and plantation. We used bamboo canes (NB and black cardboard tubes placed on wooden boards (NC to attract nesting females. Bees occupied 17 NA (12 NB - 9 to 21mm in diameter - and 5 NC - 8 to 10mm in four forest fragments forming 26 nests (one to six nests per NB. No nest was founded in disturbed areas. There was no difference between NB and NC related to the size of formed nests (t= 0.31, p= 0.763, df= 25. The number of cells ranged from 1 to 13 per nest, being larger in NB than in NC (t= 2.26, p= 0.033, df= 25. The construction activity occurred during the rainy season (October to March, with no correlation to climate parameters. Emergence (1 to 12 per nest was correlated with humidity (t= 3.013, p= 0.006. Time to adult emergence varied from 1 to 141 days. The sex ratio was 1.8:1 male/female, differing from 1:1 (Χ2= 9.39, p<0.002. The parasites were Coelioxys otomita Cresson and two other species of Coelioxys. The species demonstrates plasticity in nesting substrate, and preference for cavities with diameters larger than 9mm. There is a possible dependence of the species to forest environments, since the higher occurrence of nesting was in forest areas in advanced stages of regeneration.

Mating disruption with low density diffusers for the management of oriental fruit moths (Lepidoptera: Tortricidae in apple orchards under subtropical climate in southern Brazil

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Lino Bittencourt Monteiro

2013-12-01

Full Text Available The oriental fruit moth, Grapholita molesta Busck, and fruit flies, Anastrepha fraterculus L., are the important apple pests under Subtropical climate in Southern Brazil, and control is normally accomplished with insecticides. An alternative strategy for the control of G. molesta is mating disruption, through the use of pheromones. Mating disruption strategies using a low density of dispensers (20 per hectare were tested in comparison with conventional pesticides for control of G. molesta in commercial Gala apple orchards in Fraiburgo, SC, for a period of five years. The average field efficiency period of mating disruption formulation over five years was 113 days. In this period the mating interruption index on mating disruption plots was 84.8% over five years. Damage to Gala apples by oriental moth larvae was low (<0.1% in mating disruption plots but did not differ from conventional plots, except in the third year. The use of mating disruption allowed for an average reduction of 5.2 insecticide treatments per year in Gala orchards during field efficiency period. It was necessary to apply 1.0 and 1.2 applications of insecticide to control of G. molesta and A. fraterculus, respectively. Mating disruption with a low density of diffusers proved to be an effective alternative to conventional methods for control of G. molesta in Gala apple orchards in subtropical climate in southern Brazil.

Desarrollo de una metodología in vitro para estimar la tasa de fermentación de los forrajes en el intestino grueso del cerdo

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Leterme Pascal

2005-12-01

Full Text Available La metodología para estimar la tasa de fermentación de los forrajes se desarrolló en dos etapas. La primera, de digestibilidad enzimática, simula la digestión ocurrida en el estómago e intestino delgado, mediante el empleo de pepsina y pancreatina; en esta se determina la digestibilidad de la materia seca. La segunda etapa de fermentación simula la fermentación que ocurre en el intestino grueso utilizando como inóculo heces de cerdo; en esta se determina la cantidad de gas producido durante la fermentación de los forrajes y la degradación de la fibra detergente neutra (FDN. Las dos etapas presentaron buena repetibilidad en el tiempo. Abstract Develop of an in vitro methodology to determine the forages fermentation in to the large intestine. The methodology was developing in two phases. The first phase (enzymatic digestibility simulates the digestion occurred in the stomach and small intestine, by means of the employment of pepsin and pancreatin; and the digestibility of the dry matter is determined. The second phase (in vitro fermentation simulates the fermentation that occurs in the large intestine utilizing pig faeces; the quantity of gas produced during the fermentation of the feedstuff is determined and determine the degradation of neutral detergent fiber (NDF. All the phases show a good repeatability throw the time. Key words: digestibility in vitro, pigs, fermentación, forages (Azolla filiculoides, Xanthosoma saggitifolium, Morus alba, Trichanthera gigantea y Salvinia molesta.

Physical, current, and other data from CTD casts, current meters, and drifting buoys from the NOAA ship Mt Mitchell in the Persian Gulf as part of the Straits of Hormuz project from 26 February 1992 to 22 June 1992 (NODC Accession 9600082)

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National Oceanic and Atmospheric Administration, Department of Commerce — Physical, current, and other data were collected from CTD casts, current meters, and drifting buoys from the NOAA ship Mt Mitchell in the Persian Gulf and other...

S.E. Mitchell Vascular Anomalies Flow Chart (SEMVAFC): A visual pathway combining clinical and imaging findings for classification of soft-tissue vascular anomalies

International Nuclear Information System (INIS)

Tekes, A.; Koshy, J.; Kalayci, T.O.; Puttgen, K.; Cohen, B.; Redett, R.; Mitchell, S.E.

2014-01-01

Classification of vascular anomalies (VAs) is challenging due to overlapping clinical symptoms, confusing terminology in the literature and unfamiliarity with this complex entity. It is important to recognize that VAs include two distinct entities, vascular tumours (VTs) and vascular malformations (VaMs). In this article, we describe SE Mitchell Vascular Anomalies Flow Chart (SEMVAFC), which arises from a multidisciplinary approach that incorporates clinical symptoms, physical examination and magnetic resonance imaging (MRI) findings to establish International Society for the Study of Vascular Anomalies (ISSVA)-based classification of the VAs. SEMVAFC provides a clear visual pathway for physicians to accurately diagnose Vas, which is important as treatment, management, and prognosis differ between VTs and VaMs

Identification of up-regulated genes from the metal-hyperaccumulator aquatic fern Salvinia minima Baker, in response to lead exposure.

Science.gov (United States)

Leal-Alvarado, Daniel A; Martínez-Hernández, A; Calderón-Vázquez, C L; Uh-Ramos, D; Fuentes, G; Ramírez-Prado, J H; Sáenz-Carbonell, L; Santamaría, J M

2017-12-01

Lead (Pb) is one of the most serious environmental pollutants. The aquatic fern Salvinia minima Baker is capable to hyper-accumulate Pb in their tissues. However, the molecular mechanisms involved in its Pb accumulation and tolerance capacity are not fully understood. In order to investigate the molecular mechanisms that are activated by S. minima in response to Pb, we constructed a suppression subtractive hybridization library (SSH) in response to an exposure to 40μM of Pb(NO 3 ) 2 for 12h. 365 lead-related differentially expressed sequences tags (ESTs) were isolated and sequenced. Among these ESTs, 143 unique cDNA (97 were registered at the GenBank and 46 ESTs were not registered, because they did not meet the GenBank conditions). Those ESTs were identified and classified into 3 groups according to Blast2GO. In terms of metabolic pathways, they were grouped into 29 KEGG pathways. Among the ESTs, we identified some that might be part of the mechanism that this fern may have to deal with this metal, including abiotic-stress-related transcription factors, some that might be involved in tolerance mechanisms such as ROS scavenging, membrane protection, and those of cell homeostasis recovery. To validate the SSH library, 4 genes were randomly selected from the library and analyzed by qRT-PCR. These 4 genes were transcriptionally up-regulated in response to lead in at least one of the two tested tissues (roots and leaves). The present library is one of the few genomics approaches to study the response to metal stress in an aquatic fern, representing novel molecular information and tools to understand the molecular physiology of its Pb tolerance and hyperaccumulation capacity. Further research is required to elucidate the functions of the lead-induced genes that remain classified as unknown, to perhaps reveal novel molecular mechanisms of Pb tolerance and accumulation capacity in aquatic plants. Copyright © 2017 Elsevier B.V. All rights reserved.

The capillary adhesion technique: a versatile method for determining the liquid adhesion force and sample stiffness

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Daniel Gandyra

2015-01-01

Full Text Available We report a novel, practical technique for the concerted, simultaneous determination of both the adhesion force of a small structure or structural unit (e.g., an individual filament, hair, micromechanical component or microsensor to a liquid and its elastic properties. The method involves the creation and development of a liquid meniscus upon touching a liquid surface with the structure, and the subsequent disruption of this liquid meniscus upon removal. The evaluation of the meniscus shape immediately before snap-off of the meniscus allows the quantitative determination of the liquid adhesion force. Concurrently, by measuring and evaluating the deformation of the structure under investigation, its elastic properties can be determined. The sensitivity of the method is remarkably high, practically limited by the resolution of the camera capturing the process. Adhesion forces down to 10 µN and spring constants up to 2 N/m were measured. Three exemplary applications of this method are demonstrated: (1 determination of the water adhesion force and the elasticity of individual hairs (trichomes of the floating fern Salvinia molesta. (2 The investigation of human head hairs both with and without functional surface coatings (a topic of high relevance in the field of hair cosmetics was performed. The method also resulted in the measurement of an elastic modulus (Young’s modulus for individual hairs of 3.0 × 105 N/cm2, which is within the typical range known for human hair. (3 Finally, the accuracy and validity of the capillary adhesion technique was proven by examining calibrated atomic force microscopy cantilevers, reproducing the spring constants calibrated using other methods.

KIC 8462852: Maria Mitchell Observatory Photographic Photometry 1930 to 1985

Science.gov (United States)

Castelaz, Michael; Barker, Thurburn

2018-01-01

KIC 8462852 is an F3V star which decreased 20% in visual brightness twice from 5 to 20 days (Boyajian et al., 2016, MNRAS, 457, 3988) in 2011 and again in 2013. New observations show decreases of a few percent in May 2017 (Waagen 2017, AAVSO Alert Notice, 579), and reanalysis of Kepler data shows a variation of 928.25 days and 22 dimming events (Kiefer et al. 2017, accepted). Photometry from the All-Sky Automated Survey for Supernovae and the All-Sky Automated Survey (ASAS) indicate two brightening episodes and a steady decrease in magnitude of 6.3 +/- 1.4 mmag/yr (Simon et al 2017, accepted). Photometric studies from photographic plate collections include a light curve from 1338 Harvard College Observatory plates over the period 1890 to 1989 (Schaefer 2016, ApJ, 822, L34) that indicates KIC 8462852 is dimming 0.164 +/- 0.013 magnitudes per century. Hippke et al. (2016, ApJ, 825, 73) present B and V light curves from photometry from the Sonneberg Observatory photographic plate collection (Brauer and Fuhrmann 1992, Die Sterne, 68, 19) covering the period from 1934 to 1995. The light curve suggests less than 3% or 0.03 magnitude per century decrease in brightness, consistent with the ASAS light curve and Kepler data.Another consistent set of astronomical photographic plates with KIC 8462852 are in the Maria Mitchell Observatory (MMO) collection (Strelnitski 2009 in ASP Conference Series Vol. 410 p. 96). This collection is located in the Astronomical Photographic Data Archive at the Pisgah Astronomical Research Institute. We extracted the photographic magnitudes of KIC 8462852 from 743 plates from 1930 to 1988. We chose 8 nearby comparison stars within one spectral subclass and within 0.05 magnitudes of KIC 8462852, and not identified as variables. The photometry is calibrated to the USNO B filter, closest in bandpass to the emulsion wavelength sensitivity. The light curve of KIC 8462852 suggests a trend of about 0.1 +/- 0.07 magnitudes per century decrease, an

Capacity of the aquatic fern (Salvinia minima Baker) to accumulate high concentrations of nickel in its tissues, and its effect on plant physiological processes

Energy Technology Data Exchange (ETDEWEB)

Fuentes, Ignacio I.; Espadas-Gil, Francisco; Talavera-May, Carlos; Fuentes, Gabriela; Santamaría, Jorge M., E-mail: jorgesm@cicy.mx

2014-10-15

Highlights: • We document the capacity of an aquatic fern to hyper-accumulate Ni. • Effects of high Ni concentrations uptake on plant performance is documented. • High concentration of Ni in tissues damage photosynthesis. • Damage is related to carboxylation mechanisms than to electron transfer efficiency. • S. minima is a good candidate for remediation of water bodies contaminated with Ni. - Abstract: An experiment was designed to assess the capacity of Salvinia minima Baker to uptake and accumulate nickel in its tissues and to evaluate whether or not this uptake can affect its physiology. Our results suggest that S. minima plants are able to take up high amounts of nickel in its tissues, particularly in roots. In fact, our results support the idea that S. minima might be considered a hyper-accumulator of nickel, as it is able to accumulate 16.3 mg g{sup −1} (whole plant DW basis). Our results also showed a two-steps uptake pattern of nickel, with a fast uptake of nickel at the first 6 to 12 h of being expose to the metal, followed by a slow take up phase until the end of the experiment at 144 h. S. minima thus, may be considered as a fern useful in the phytoremediation of residual water bodies contaminated with this metal. Also from our results, S. minima can tolerate fair concentrations of the metal; however, at concentrations higher than 80 μM Ni (1.5 mg g{sup −1} internal nickel concentration), its physiological performance can be affected. For instance, the integrity of cell membranes was affected as the metal concentration and exposure time increased. The accumulation of high concentrations of internal nickel did also affect photosynthesis, the efficiency of PSII, and the concentration of photosynthetic pigments, although at a lower extent.

The prioritisation of a short list of alien plants for risk analysis within the framework of the Regulation (EU No. 1143/2014

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Rob Tanner

2017-06-01

, Lespedeza cuneata, Lygodium japonicum, Pennisetum setaceum, Prosopis juliflora, Sapium sebiferum, Pistia stratiotes and Salvinia molesta.

Efficacy of bath and orally administered praziquantel and fenbendazole against Lepidotrema bidyana Murray, a monogenean parasite of silver perch, Bidyanus bidyanus (Mitchell).

Science.gov (United States)

Forwood, J M; Harris, J O; Deveney, M R

2013-11-01

We investigated the efficacy of praziquantel (PZQ) and fenbendazole (FBZ), each administered by bath and orally, against the monogenean Lepidotrema bidyana Murray, a gill parasite of the freshwater fish silver perch, Bidyanus bidyanus (Mitchell). PZQ and FBZ were each administered by bath at 10 mg L⁻¹ for 48 h and on surface-coated feed pellets at 75 mg kg⁻¹ per body weight (BW) per day for 6 days. Bath treatments of PZQ and FBZ had an efficacy of 99% and 91%, respectively, against adult L. bidyana. Oral treatments of PZQ and FBZ had an efficacy of 79% and 95%, respectively, against adult L. bidyana. Fish rejected feed pellets surface-coated with PZQ, suggesting that palatability of surface-coated PZQ-medicated feed is poor, which undermined efficacy. In all trials, some juvenile parasites were present on fish after treatment during efficacy assessment, indicating that efficacy may be lower against juvenile parasites or that recruitment occurred post-treatment, demonstrating that repeat treatments are necessary to effectively control L. bidyana in aquaculture. © 2013 John Wiley & Sons Ltd.

High genetic diversity and structured populations of the oriental fruit moth in its range of origin.

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Yan Zheng

Full Text Available The oriental fruit moth Grapholita ( = Cydia molesta is a key fruit pest globally. Despite its economic importance, little is known about its population genetics in its putative native range that includes China. We used five polymorphic microsatellite loci and two mitochondrial gene sequences to characterize the population genetic diversity and genetic structure of G. molesta from nine sublocations in three regions of a major fruit growing area of China. Larval samples were collected throughout the season from peach, and in late season, after host switch by the moth to pome fruit, also from apple and pear. We found high numbers of microsatellite alleles and mitochondrial DNA haplotypes in all regions, together with a high number of private alleles and of haplotypes at all sublocations, providing strong evidence that the sampled area belongs to the origin of this species. Samples collected from peach at all sublocations were geographically structured, and a significant albeit weak pattern of isolation-by-distance was found among populations, likely reflecting the low flight capacity of this moth. Interestingly, populations sampled from apple and pear in the late season showed a structure differing from that of populations sampled from peach throughout the season, indicating a selective host switch of a certain part of the population only. The recently detected various olfactory genotypes in G. molesta may underly this selective host switch. These genetic data yield, for the first time, an understanding of population dynamics of G. molesta in its native range, and of a selective host switch from peach to pome fruit, which may have a broad applicability to other global fruit production areas for designing suitable pest management strategies.

Absorption and degradation of 14C-2, 4-D by some free-floating aquatic weeds

International Nuclear Information System (INIS)

Singh, S.P.

1980-01-01

Plants of Salvinia, Lemna, Azolla and Limnobium, which are free-floating aquatic weeds, were grown separately in glass dishes containing initially 400 ml of nutrient solution and 2 μCi of 14 C-2,4-D under controlled conditions of temperature, light and relative humidity. The total uptake of 2,4-D by these plant species increased with the increasing duration of exposure to herbicide. 2,4-D uptake, calculated on per unit dry weight of weed, was maximum in case of Limnobium, followed by Salvinia, Lemna and Azolla. After 20 days of treatment, the highest radioactivity (24%) was obtained in the organic fraction of the extracts of Limnobium and Azolla; followed by Salvinia (8%) and Lemna (6%). In a separate experiment, root uptake and subsequent translocation of 14 C-2,4-D was also studied. At all the stages of sampling, more than half to 3/4th of the absorbed 14 C-2,4-D was found in the roots, and the remaining was present in the shoot. (author)

PhDAHP1 is required for floral volatile benzenoid/phenylpropanoid biosynthesis in Petunia × hybrida cv 'Mitchell Diploid'.

Science.gov (United States)

Langer, Kelly M; Jones, Correy R; Jaworski, Elizabeth A; Rushing, Gabrielle V; Kim, Joo Young; Clark, David G; Colquhoun, Thomas A

2014-07-01

Floral volatile benzenoid/phenylpropanoid (FVBP) biosynthesis consists of numerous enzymatic and regulatory processes. The initial enzymatic step bridging primary metabolism to secondary metabolism is the condensation of phosphoenolpyruvate (PEP) and erythrose-4-phosphate (E4P) carried out via 3-DEOXY-D-ARABINO-HEPTULOSONATE-7-PHOSPHATE (DAHP) synthase. Here, identified, cloned, localized, and functionally characterized were two DAHP synthases from the model plant species Petunia × hybrida cv 'Mitchell Diploid' (MD). Full-length transcript sequences for PhDAHP1 and PhDAHP2 were identified and cloned using cDNA SMART libraries constructed from pooled MD corolla and leaf total RNA. Predicted amino acid sequence of PhDAHP1 and PhDAHP2 proteins were 76% and 80% identical to AtDAHP1 and AtDAHP2 from Arabidopsis, respectively. PhDAHP1 transcript accumulated to relatively highest levels in petal limb and tube tissues, while PhDAHP2 accumulated to highest levels in leaf and stem tissues. Through floral development, PhDAHP1 transcript accumulated to highest levels during open flower stages, and PhDAHP2 transcript remained constitutive throughout. Radiolabeled PhDAHP1 and PhDAHP2 proteins localized to plastids, however, PhDAHP2 localization appeared less efficient. PhDAHP1 RNAi knockdown petunia lines were reduced in total FVBP emission compared to MD, while PhDAHP2 RNAi lines emitted 'wildtype' FVBP levels. These results demonstrate that PhDAHP1 is the principal DAHP synthase protein responsible for the coupling of metabolites from primary metabolism to secondary metabolism, and the ultimate biosynthesis of FVBPs in the MD flower. Copyright © 2014 Elsevier Ltd. All rights reserved.

Garrapatas molestas (Pesky Ticks)

Centers for Disease Control (CDC) Podcasts

2013-04-09

En este podcast los niños de Kidtastics hablan sobre los riesgos que pueden presentar las garrapatas y sobre cómo protegerse de ellas.  Created: 4/9/2013 by Centers for Disease Control and Prevention (CDC).   Date Released: 12/11/2013.

Combination of aquatic species and safeners improves the remediation of copper polluted water.

Science.gov (United States)

Panfili, Ivan; Bartucca, Maria Luce; Ballerini, Eleonora; Del Buono, Daniele

2017-12-01

In the last decades, many anthropogenic activities have resulted in heavy metal contamination of freshwaters and surrounding environments. This poses serious threats to human health. Phytoremediation is a cost-effective technology which is useful for remediating polluted soils and water. Recently, the use of aquatic free-floating plants has been proposed to remediate polluted water. In this context, a study on the capacity of two aquatic plants, Lemna minor (duckweed) and Salvinia auriculata (salvinia), to remediate Cu +2 (Cu) polluted water was carried out. Initially, the species were exposed to different copper concentrations (1, 5, 10, 20 and 50μmolL -1 ) in order to assess Cu +2 toxicity to the plants. In addition, plants were treated with two safeners (benoxacor and dichlormid), with the aim of pointing out any safening effect of these compounds on the aquatic species. Toxicity tests showed that safened plants had a greater Cu resistance, especially at the higher Cu doses. Finally, unsafened and safened plants were tested in the decontamination of water polluted by copper (1.2mgL -1 ). In general, duckweed removed higher amounts of Cu from polluted water than salvinia, and, surprisingly, for both the species the safeners significantly increased the plants' capacity to remove the metal from the polluted waters. Lastly, an HPLC-based method was developed and standardized to monitor the residual amounts of the two safeners in the water. While dichlormid was completely absorbed by duckweed within few days after the treatments, some residual amounts of both safeners were found in salvinia vegetated water after two weeks. In conclusion, the results of this research show that the use of aquatic species in combination with safeners is an attractive and reliable tool to make plants more effective in phytoremediation of water polluted with metals (or other toxic compounds). Copyright © 2017 Elsevier B.V. All rights reserved.

Oligochaeta (Annelida, Clitellata in the Aquatic Macrophytes in Dam of Ribeirão of Anhumas Screamers (Américo Brasiliense-Sp

Directory of Open Access Journals (Sweden)

Nathalie Aparecida De Oliveira Sanches

2014-06-01

Full Text Available Macrophytes have different morphological structural complexities, offering to animals the availability of various niches. These plants are also an important substrate for the development of periphyton, which has a high nutritional value and is one of the main foods of aquatic invertebrates, mainly Naididae. This study aimed at examinining the diversity of Oligochaeta community in macrophytes belonging to genus Egeria sp. and Salvinia sp., in lagoons of Ribeirão das Anhumas dam. These macrophytes have distinct three-dimensional characteristics and different habits, being Egeria fixed submerged and Salvinia free floating. The collections of macrophytes were carried out between the months of August 2012 and April 2013. Samples of 100g (wet weight of each genus were taken from plant biomass and the removal of the plants from the environment was made with the aid of a sieve with 0.21 mm mesh. Considering the two macrophytes analyzed, Egeria sp. was the one that presented greater diversity, richness and abundance in relation to Salvinia sp. These results demonstrate that macrophytes are important for the establishment of oligochaetes, mainly providing protection and food, and possibly the morphology and habit of the plants are the most influential factors in the association of oligofauna with these plants.

"Cheating under pressure: A self-protection model of workplace cheating behavior": Correction to Mitchel et al. (2017).

Science.gov (United States)

2018-01-01

Reports an error in "Cheating Under Pressure: A Self-Protection Model of Workplace Cheating Behavior" by Marie S. Mitchell, Michael D. Baer, Maureen L. Ambrose, Robert Folger and Noel F. Palmer ( Journal of Applied Psychology , Advanced Online Publication, Aug 14, 2017, np). In the article, the fit statistics in Study 3 were reported in error. The fit of the measurement model is: Χ²(362) = 563.66, p = .001; CFI = .94; SRMR = .05; RMSEA = .04. The fit of the SEM model is: Χ²(362) = 563.66, p = .001; CFI = .94; SRMR = .05; RMSEA = .04. (The following abstract of the original article appeared in record 2017-34937-001.) Workplace cheating behavior is unethical behavior that seeks to create an unfair advantage and enhance benefits for the actor. Although cheating is clearly unwanted behavior within organizations, organizations may unknowingly increase cheating as a byproduct of their pursuit of high performance. We theorize that as organizations place a strong emphasis on high levels of performance, they may also enhance employees' self-interested motives and need for self-protection. We suggest that demands for high performance may elicit performance pressure-the subjective experience that employees must raise their performance efforts or face significant consequences. Employees' perception of the need to raise performance paired with the potential for negative consequences is threatening and heightens self-protection needs. Driven by self-protection, employees experience anger and heightened self-serving cognitions, which motivate cheating behavior. A multistudy approach was used to test our predictions. Study 1 developed and provided validity evidence for a measure of cheating behavior. Studies 2 and 3 tested our predictions in time-separated field studies. Results from Study 2 demonstrated that anger mediates the effects of performance pressure on cheating behavior. Study 3 replicated the Study 2 findings, and extended them to show that self-serving cognitions

"Racial bias in mock juror decision-making: A meta-analytic review of defendant treatment": Correction to Mitchell et al. (2005).

Science.gov (United States)

2017-06-01

Reports an error in "Racial Bias in Mock Juror Decision-Making: A Meta-Analytic Review of Defendant Treatment" by Tara L. Mitchell, Ryann M. Haw, Jeffrey E. Pfeifer and Christian A. Meissner ( Law and Human Behavior , 2005[Dec], Vol 29[6], 621-637). In the article, all of the numbers in Appendix A were correct, but the signs were reversed for z' in a number of studies, which are listed. Also, in Appendix B, some values were incorrect, some signs were reversed, and some values were missing. The corrected appendix is included. (The following abstract of the original article appeared in record 2006-00971-001.) Common wisdom seems to suggest that racial bias, defined as disparate treatment of minority defendants, exists in jury decision-making, with Black defendants being treated more harshly by jurors than White defendants. The empirical research, however, is inconsistent--some studies show racial bias while others do not. Two previous meta-analyses have found conflicting results regarding the existence of racial bias in juror decision-making (Mazzella & Feingold, 1994, Journal of Applied Social Psychology, 24, 1315-1344; Sweeney & Haney, 1992, Behavioral Sciences and the Law, 10, 179-195). This research takes a meta-analytic approach to further investigate the inconsistencies within the empirical literature on racial bias in juror decision-making by defining racial bias as disparate treatment of racial out-groups (rather than focusing upon the minority group alone). Our results suggest that a small, yet significant, effect of racial bias in decision-making is present across studies, but that the effect becomes more pronounced when certain moderators are considered. The state of the research will be discussed in light of these findings. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

ANATOMICAL-HISTOLOGICAL OBSERVATIONS CONDUCTED ON AQUATIC FERNS IN THE DANUBE DELTA

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Anca SÂRBU

2017-12-01

Full Text Available This paper analyses aquatic ferns from the genera Azolla Lam., Marsilea L. and Salvinia Séguier, which occur in the Danube Delta, Romania, and comprises a series of anatomical and histological observations of taxonomical, chorological and eco-morphological importance. The research conducted on specimens collected between 2005-2013 from the natural habitats of the Danube Delta, but also from the extra-deltaic artificial habitats have enabled: i a reconsideration of some chorological aspects regarding the species of the genus Azolla in Romania; ii a greater understanding of the adaptive plasticity relative to the factor water for the taxon Marsilea quadrifolia L. collected from natural and artificial habitats; iii the enrichment of the data regarding the structural characteristics of the taxon Salvinia natans (L. All., particularly around the adaptive elements associated with living on the surface of the water.

Degradation of the Mitchell River fluvial megafan by alluvial gully erosion increased by post-European land use change, Queensland, Australia

Science.gov (United States)

Shellberg, J. G.; Spencer, J.; Brooks, A. P.; Pietsch, T. J.

2016-08-01

Along low gradient rivers in northern Australia, there is widespread gully erosion into unconfined alluvial deposits of active and inactive floodplains. On the Mitchell River fluvial megafan in northern Queensland, river incision and fan-head trenching into Pleistocene and Holocene megafan units with sodic soils created the potential energy for a secondary cycle of erosion. In this study, rates of alluvial gully erosion into incipiently-unstable channel banks and/or pre-existing floodplain features were quantified to assess the influence of land use change following European settlement. Alluvial gully scarp retreat rates were quantified at 18 sites across the megafan using recent GPS surveys and historic air photos, demonstrating rapid increases in gully area of 1.2 to 10 times their 1949 values. Extrapolation of gully area growth trends backward in time suggested that the current widespread phase of gullying initiated between 1880 and 1950, which is post-European settlement. This is supported by young optically stimulated luminescence (OSL) dates of gully inset-floodplain deposits, LiDAR terrain analysis, historic explorer accounts of earlier gully types, and archival records of cattle numbers and land management. It is deduced that intense cattle grazing and associated disturbance concentrated in the riparian zones during the dry season promoted gully erosion in the wet season along steep banks, adjacent floodplain hollows and precursor gullies. This is a result of reduced native grass cover, increased physical disturbance of soils, and the concentration of water runoff along cattle tracks, in addition to fire regime modifications, episodic drought, and the establishment of exotic weed and grass species. Geomorphic processes operating over geologic time across the fluvial megafan predisposed the landscape to being pushed by land used change across an intrinsically close geomorphic threshold towards instability. The evolution of these alluvial gullies is discussed

Aquatic plants as potential sources of antimicrobial compounds ...

African Journals Online (AJOL)

Resistance of pathogens to common veterinary antibiotics hampers mastitis treatment and motivates the discovery of new antimicrobials. In this study, extracts from two aquatic plants, Salvinia auriculata and Hydrocleys nymphoides, were assayed against bovine mastitis pathogens. Selected parts of plants were extracted ...

Biological Investigation of the Stimulated Flapping Motions of the Moth, Manduca sexta

Science.gov (United States)

2011-03-01

have gates that open and close in response to changes in the membrane potential ( Cambell Neil A, Reece, & Mitchell, 1999). To understand what...intensity of a stimulus ( Cambell Neil A, Reece, & Mitchell, 1999). This is very relevant to research conducted here because the AP threshold must be...Containing a Retrospective view of every discovery and practical improvement in the medical sciences., 428. Cambell Neil A, Reece, J. B., & Mitchell, L

Monitoring oriental fruit moth (Lepidoptera: Tortricidae) with sticky traps baited with terpinyl acetate and sex pheromone

Science.gov (United States)

Studies in Argentina and Chile during 2010-11 evaluated a new trap (Ajar) for monitoring the oriental fruit moth, Grapholita molesta (Busck). The Ajar trap was delta-shaped with a jar filled with a terpinyl acetate plus brown sugar bait attached to the bottom center of the trap. The screened lid of ...

The dominant erosion processes supplying fine sediment to three major rivers in tropical Australia, the Daly (NT), Mitchell (Qld) and Flinders (Qld) Rivers

Science.gov (United States)

Caitcheon, Gary G.; Olley, Jon M.; Pantus, Francis; Hancock, Gary; Leslie, Christopher

2012-05-01

The tropics of northern Australia have received relatively little attention with regard to the impact of soil erosion on the many large river systems that are an important part of Australia's water resource, especially given the high potential for erosion when long dry seasons are followed by intense wet season rain. Here we use 137Cs concentrations to determine the erosion processes supplying sediment to two major northern Australian Rivers; the Daly River (Northern Territory), and the Mitchell River (Queensland). We also present data from five sediment samples collected from a 100 km reach of the Cloncurry River, a major tributary of the Flinders River (Queensland). Concentrations of 137Cs in the surface soil and subsurface (channel banks and gully) samples were used to derive 'best fit' probability density functions describing their distributions. These modelled distributions are then used to estimate the relative contribution of these two components to the river sediments. Our results are consistent with channel and gully erosion being the dominant source of sediment, with more than 90% of sediment transported along the main stem of these rivers originating from subsoil. We summarize the findings of similar studies on tropical Australian rivers and conclude that the primary source of sediment delivered to these systems is gully and channel bank erosion. Previously, as a result of catchment scale modelling, sheet-wash and rill erosion was considered to be the major sediment source in these rivers. Identifying the relative importance of sediment sources, as shown in this paper, will provide valuable information for land management planning in the region. This study also reinforces the importance of testing model predictions before they are used to target investment in remedial action.

Heavy metal concentrations in Bottom Sediments of Ikpoba River ...

African Journals Online (AJOL)

MICHAEL HORSFALL

2014-06-23

Jun 23, 2014 ... macrophytes like salvinia sp and water hyacinth. (Eichornia crassipes). This station was the lowest in depth during the dry season. The water level however increased when it was heavily flooded during the rainy season. Activities here include making of sacrifices. Sediment Samples Collection, Preparation ...

Air Force UAVs: The Secret History

Science.gov (United States)

2010-07-01

iA Mitchell Institute Study i Air Force UAVs The Secret History A Mitchell Institute Study July 2010 By Thomas P. Ehrhard Report Documentation Page...DATES COVERED 00-00-2010 to 00-00-2010 4. TITLE AND SUBTITLE Air Force UAVs The Secret History 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c...opening phases of Operation Enduring Freedom in Afghanistan. By Thomas P. Ehrhard a miTchEll insTiTuTE sTudy July 2010 Air Force UAVs The Secret History

TERRAIN, MITCHELL COUNTY, IA

Data.gov (United States)

Federal Emergency Management Agency, Department of Homeland Security — Terrain data, as defined in FEMA Guidelines and Specifications, Appendix M: Data Capture Standards, describes the digital topographic data that was used to create...

Jack Mitchell : kallistage oma töötajaid / Jack Mitchell ; interv. Neeme Raud

Index Scriptorium Estoniae

Mitchell, Jack

2007-01-01

Kuidas üks maailma edukamaid ärimehi valib oma firmasse töötajaid, tema müügikultuurist ning peatselt ilmuvast teisest raamatust, kus peamiseks põhitõeks on oma töötajatest lugupidamine ning nende "kallistamine". Lisa: Jacki viis põhitõde

The Impact of User-Input Devices on Virtual Desktop Trainers

Science.gov (United States)

2010-09-01

Nintendo Entertainment System (SNES) game pad (From Mitchell, 2010...13 Figure 3. Original Playstation Game Controller (From Mitchell, 2010)............... 14 Figure 4. Nintendo -64...SISO Simulation Interoperability Standards Organization SNES Super Nintendo Entertainment System SD Standard Deviation ST Skilled Technical

Biological interactions in the co-occurrence of Eichhornia azurea and free-floating macrophytes - DOI: 10.4025/actascibiolsci.v31i4.5577

Directory of Open Access Journals (Sweden)

Sidinei Magela Thomaz

2009-08-01

Full Text Available The dynamic of plant communities is strongly influenced by biological interactions. We studied the effects of Eichhornia azurea on the growth of the free-floating macrophytes Eichhornia crassipes, Salvinia minima, Salvinia auriculata and Limnobium laevigatum. The experiments were carried out in three lakes of the upper Paraná river floodplain. We used 0.5 m side squares where these species grew for 11 days (S. auriculata and L. laevigatum and 17 days (E. crassipes and S. minima, in the presence and absence of E. azurea. There were no significant differences between the relative growth rates of macrophytes growing in the absence and presence of E. azurea. The relative interaction index showed the existence of competition between E. azurea and L. laevigatum, and neutrality with the other three species. There was no evidence of facilitation related to the improvement of physico-chemistry characteristics that could enhance macrophytes growth. However, we do not discard a ‘mechanical’ facilitation between E. azurea, which offers protection against wind and waves, and the other species of macrophytes

Caloric density of aquatic macrophytes in different environments of the Baía river subsystem, upper Paraná river floodplain, Brazil

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Célia de Almeida Lopes

2006-09-01

Full Text Available The aim of this work was to determine the caloric density of leaves, stems and roots of aquatic macrophytes in different environments of the Baía subsystem (Baía river and Fechada and Guaraná lagoons on the Upper Paraná river floodplain, in addition to identify the variability between ecological groups. Samplings of Eichhornia crassipes, Salvinia spp, Pistia stratiotes, Eichhornia azurea, Polygonum sp, Cyperaceae and Poaceae were carried out in February 2003. Spatial differences in the caloric densities were not observed for these plants. Caloric density values varied from 1906.9 cal/g dry weight (root to 4675.0 cal/g dry weight (leaf. However, significant differences between the caloric content averages of the vegetative structures were observed only for Polygonum sp and Salvinia spp. In relation to the ecological groups, the highest average value was verified for the emergent macrophytes (3529.7 ± 722.5, which were significantly different from the floating ones (3056.5 ± 571.0. There was no difference between the sites included in the subsystem when the caloric densities were compared.O presente trabalho teve por objetivo determinar a densidade calórica de folhas, caules e raízes de macrófitas aquáticas, em diferentes ambientes do subsistema Baía (Rio Baía e lagoas Fechada e do Guaraná na planície de inundação do alto rio Paraná, além de identificar a variabilidade entre grupos ecológicos. As amostragens foram realizadas em fevereiro de 2003, sendo coletadas amostras de diferentes macrófitas, Eichhornia crassipes, Salvinia spp, Pistia stratiotes, Eichhornia azurea, Polygonum sp, Cyperaceae e Poaceae. Diferenças espaciais nas densidades calóricas não foram observadas para as plantas estudadas. Os valores de densidade calórica variaram de 1906,9 cal/g de peso seco (raiz a 4675,0 cal/g de peso seco (folha. Entretanto, diferenças significativas entre as médias dos conteúdos calóricos das estruturas vegetativas foram

78 FR 12050 - Juneau Hydropower, Inc.; Notice of Successive Preliminary Permit Application Accepted for Filing...

Science.gov (United States)

2013-02-21

...-diameter stream diversion tunnel that would be converted to reservoir outlet works after project... afterbay to an outlet structure on a tributary to Sweetheart Creek; and an existing tributary stream... Mitchell, Business Manager, Juneau Hydropower, Inc. P.O. Box 22775, Juneau, AK 99802; email: duff.mitchell...

78 FR 2990 - Juneau Hydropower, Inc.; Notice of Successive Preliminary Permit Application Accepted for Filing...

Science.gov (United States)

2013-01-15

...-diameter stream diversion tunnel that would be converted to reservoir outlet works after project... afterbay to an outlet structure on a tributary to Sweetheart Creek; and an existing tributary stream... Mitchell, Business Manager, Juneau Hydropower, Inc. P.O. Box 22775, Juneau, AK 99802; email: duff.mitchell...

29 CFR 779.101 - Guiding principles for applying coverage and exemption provisions.

Science.gov (United States)

2010-07-01

... Apply: Basic Principles and Individual Coverage General Principles § 779.101 Guiding principles for... applies. (Walling v. General Industries Co., 330 U.S. 545; Mitchell v. Kentucky Finance Co., 359 U.S. 290..., 324 U.S. 490; Mitchell v. Kentucky Finance Co., supra; Arnold v. Kanowsky, supra; Calaf v. Gonzalez...

Effects of climate change on forest insect and disease outbreaks

Science.gov (United States)

David W. Williams; Robert P. Long; Philip M. Wargo; Andrew M. Liebhold

2000-01-01

General circulation models (GCMs) predict dramatic future changes in climate for the northeastern and north central United States under doubled carbon dioxide (CO2) levels (Hansen et al., 1984; Manabe and Wetherald, 1987; Wilson and Mitchell, 1987; Cubasch and Cess, 1990; Mitchell et al., 1990). January temperatures are projected to rise as much...

Disease: H01377 [KEGG MEDICUS

Lifescience Database Archive (English)

Full Text Available H01377 Mitchell-Riley syndrome Mitchell-Riley syndrome is a neonatal diabetes synd...rome that involves abnormalities of the anterior gut as well as diabetes. Patients with this syndrome are ty...aniels M, Liu X, Paz VP, Ye H, Highland HM, Hanis CL, Greeley SA ... TITLE ... Neonatal diabetes, gallbladder

26th National Neurotrauma Symposium

Science.gov (United States)

2008-12-31

Sanchez Alvaro I., Puyana Juan C., Fabio Anthony, Adelson P. David 81 COMPARATIVE NEUROPROTECTIVE EFFECTS OF CYCLOSPORIN A AND NIM811, A NON...Xiangbai, Fabio Anthony, Yuan Zhifang, Niyonkuru Christian, Wagner Amy 99 ACTIVATION OF MITOCHONDRIAL UNCOUPLING PROTEINS BY POLYUNSATURATED FATTY...Metabolism/Physiological Assessments TBI Mitchell Cohen University of California, San Francisco Ferguson Adam, Cohen Mitchell, Morabito Diane

Central Radar System, Over-the-Horizon Backscatter

Science.gov (United States)

1990-03-09

Magnolia virginiana Switchgrass Panicum virgatum FAC+ Tall mannagrass Glyceria grandis OBL Water fern Salvinia spp. and Marsilea vestita OBL Water...boxelder, (Acer negundo), oaks (Quercus spp.), willows (Salix spp.), chokecherry (Prunus virginiana ), plum (Prunus spp.), and russian olive (Elaeagnus...maintenance of the power lines may be required to trim or prune trees which may interfere with the lines. With the exception of the pole sites, the only

A Summary of the Naval Postgraduate School Research Program.

Science.gov (United States)

1983-05-01

Uno R. Kodres, Associate Professor of Computer Science, Mitchell L. Cotton, Associate Professor of Electrical Engineering and Rudolf Panholzer...method at hierarchical scopic levels will be develoned and * implemented. Professors Rudolf Panholzer and Mitchell Cotton, with Professor Uno Kodres of...anomalies between Hawaii and San Francisco have been completed ( Steiner , 1981; Steiner and Elsberry, 1981). Publications: R. L. Elsberry, S. A

Alleviating Stress In Police Agencies

OpenAIRE

Phillip Neely; Craig S. Cleveland

2013-01-01

Policestress has been examined in many studies, many of which have focused upon thedevelopment of prevention and treatment programs for the police officers(Maslach, 1982; Maslach & Jackson, 1979; Mitchell, 1983; Mitchell &Everly, 1993). The trend of combating stress began with the police agenciesusing employee assistance programs, funding conferences, conducting research,and establishing prevention programs, but the fact remains that the health ofpolice officers and their families bec...

Bombs and Umbrellas: Defending US Middle East Allies from a Nuclear-Armed Iran

Science.gov (United States)

2010-05-01

States Reconsider Their Nuclear Choices ed. Kurt Cambell , Robert Einhorn, and Mitchell Reiss. (Washington, DC: Brookings Institution Press, 2004...Lippman, “Saudi Arabia: The Calculations of Uncertainty,” The Nuclear Tipping Point: Why States Reconsider Their Nuclear Choices ed. Kurt Cambell , Robert...a Non-Nuclear Course.” In The Nuclear Tipping Point: Why States Reconsider Their Nuclear Choices ed. Kurt Cambell , Robert Einhorn, and Mitchell

The Potential Application and Risks Associated With the Use of Predatory Bacteria as a Bio-control Agent Against Wound Infections

Science.gov (United States)

2015-10-01

213: 428–431. 21. Dwidar M, Monnappa AK, Mitchell RJ (2012) The dual probiotic and antibiotic nature of Bdellovibrio bacteriovorus. BMB Rep 45: 71–78...and characterization of two bacteriophages with strong in vitro antimicrobial activity against Pseudomonas aeruginosa isolated from dogs with ocular...infections. Am J Vet Res 72: 1079–1086. 4. Dwidar M, Monnappa AK, Mitchell RJ (2012) The dual probiotic and antibiotic nature of Bdellovibrio

Validation of reference genes for quantitative real-time PCR during leaf and flower development in Petunia hybrida

Directory of Open Access Journals (Sweden)

Hause Bettina

2010-01-01

Full Text Available Abstract Background Identification of genes with invariant levels of gene expression is a prerequisite for validating transcriptomic changes accompanying development. Ideally expression of these genes should be independent of the morphogenetic process or environmental condition tested as well as the methods used for RNA purification and analysis. Results In an effort to identify endogenous genes meeting these criteria nine reference genes (RG were tested in two Petunia lines (Mitchell and V30. Growth conditions differed in Mitchell and V30, and different methods were used for RNA isolation and analysis. Four different software tools were employed to analyze the data. We merged the four outputs by means of a non-weighted unsupervised rank aggregation method. The genes identified as optimal for transcriptomic analysis of Mitchell and V30 were EF1α in Mitchell and CYP in V30, whereas the least suitable gene was GAPDH in both lines. Conclusions The least adequate gene turned out to be GAPDH indicating that it should be rejected as reference gene in Petunia. The absence of correspondence of the best-suited genes suggests that assessing reference gene stability is needed when performing normalization of data from transcriptomic analysis of flower and leaf development.

Consecuencias contables de la variación del tipo impositivo por la reforma fiscal del Impuesto sobre Sociedades

OpenAIRE

Rodríguez García, Ferran

2015-01-01

Hablar a estas alturas de la íntima, y frecuentemente molesta para los contables, relación entre contabilidad y fiscalidad puede parecer absurdo. No obstante, aunque no pretendemos descubrir nada nuevo, no es menos cierto que en situaciones de reforma tributaria como la que se avecina se hace mucho más patente esta relación, no por el hecho de que con la reforma vayan a cambiar substancialmente los aspectos relativos a las diferencias permanentes y temporarias a las que ya nos hemos acostumbr...

Efectos de la rotigotina sobre la sintomatología, calidad de vida e higiene de sueño en el síndrome de piernas inquietas en hemodiálisis

OpenAIRE

Vicent Esteve; Jose Carneiro; Gabriel Salazar; Mónica Pou; Irati Tapia; Miquel Fulquet; Verónica Duarte; Anna Saurina; Fátima Moreno; Manel Ramírez de Arellano

2018-01-01

Introducción: El síndrome de piernas inquietas (SPI) es un trastorno neurológico caracterizado por una molesta sintomatología, asociado a deterioro de calidad de vida e higiene de sueño. Rotigotina constituye una novedosa alternativa terapéutica, si bien existen escasos estudios publicados sobre rotigotina en pacientes en hemodiálisis (HD) con SPI. Objetivos: 1.- Establecer la prevalencia de SPI en nuestra unidad de HD. 2.- Evaluar la eficacia y el perfil de seguridad asociado a rotigotina...

Cellulase and xylanase activity during the decomposition of three aquatic macrophytes in a tropical oxbow lagoon

Directory of Open Access Journals (Sweden)

L Sciessere

2011-09-01

Full Text Available Due to the connection between enzymatic activity and degradation of different fractions of organic matter, enzyme assays can be used to estimate degradation rates of particulate and dissolved organic carbon in freshwater systems. The aim of this study was to quantify and model the enzymatic degradation involving the decomposition of macrophytes, describing temporal activity of cellulases (EC 3.2.1.4 and EC 3.2.1.91 and xylanase (EC 3.2.1.8 during in situ decomposition of three aquatic macrophytes (Salvinia sp., Eichhornia azurea and Cyperus giganteus on the surface and water-sediment interface (w-s interface of an oxbow lagoon (Óleo lagoon within a natural Brazilian Savanna Reserve. Overall, the enzymatic degradation of aquatic macrophytes in Óleo lagoon occurred during the whole year and was initiated together with leaching. Xylanase production was ca. 5 times higher than cellulase values due to easy access to this compound by cellulolytic microorganisms. Enzymatic production and detritus mass decay were similar on the surface and w-s interface. Salvinia sp. was the most recalcitrant detritus, with low mass decay and enzymatic activity. E. azurea and C. giganteus decomposition rates and enzymatic production were high and similar. Due to the physicochemical homogeneity observed in the Óleo lagoon, the differences between the decay rates of each species are mostly related with detritus chemical quality.

Nonlinear Relationships Between Particulate Absorption and Chlorophyll: Detritus or Pigment Packaging

Science.gov (United States)

1993-06-15

for another polar area. For samples from Antartic waters, the mean a*pan(4 3 5 ), normalized to chl a + pheo, was 0.0 18 m2 (mg chl a)-I (Mitchell and...specific absorption coefficients, was suggested as the cause of relatively low mean specific absorption coefficients in the Antartic . The values of c1...moored optical sensors in the Sargasso Sea. J. Geophys. Res. 97, 7399-7412. Mitchell, B.G., and 0. Holm-Hansen 1991. Bio-optical properties of Antartic

Air Force UAV’s: The Secret History

Science.gov (United States)

2010-07-01

iA Mitchell Institute Study i Air Force UAVs The Secret History A Mitchell Institute Study July 2010 By Thomas P. Ehrhard Report Documentation Page...DATES COVERED 00-00-2010 to 00-00-2010 4. TITLE AND SUBTITLE Air Force UAVs The Secret History 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c... The Secret History 2 Air Force UAVs: The Secret History2 air Force uaVs: The secret history Has any airplane in the past decade captured the public

Temperature Dependent Rubidium Helium Line Shapes and Fine Structure Mixing Rates

Science.gov (United States)

2015-09-01

tube biased at 1,275 V exhibited a dark signal bias of 4-6 nA with noise fluctuation of 0.04 nA, as monitored on a Keithley model 386 picoammeter with...Journal of Physical Chemistry, 74(1):187–196, 1970. [79] Wu, Sheldon SQ, Thomas F Soules , Ralph H Page, Scott C Mitchell, V Keith Kanz, and Raymond J...Society for Optics and Photonics, 2008. [80] Wu, Sheldon SQ, Thomas F Soules , Ralph H Page, Scott C Mitchell, V Keith Kanz, and Raymond J Beach

Temperature Dependent Rubidium-Helium Line Shapes and Fine Structure Mixing Rates

Science.gov (United States)

2015-09-17

tube biased at 1,275 V exhibited a dark signal bias of 4-6 nA with noise fluctuation of 0.04 nA, as monitored on a Keithley model 386 picoammeter with...Journal of Physical Chemistry, 74(1):187–196, 1970. [79] Wu, Sheldon SQ, Thomas F Soules , Ralph H Page, Scott C Mitchell, V Keith Kanz, and Raymond J...Society for Optics and Photonics, 2008. [80] Wu, Sheldon SQ, Thomas F Soules , Ralph H Page, Scott C Mitchell, V Keith Kanz, and Raymond J Beach

Biodigestion of the aquatics plants mixtures and biogas production; Biodigestao de misturas de plantas aquaticas e producao de biogas

Energy Technology Data Exchange (ETDEWEB)

Pereira, Roberto Guimaraes; Abreu, Fernando Luiz Barbuda de; Fernandes Filho, Jorge; Pereira, Maria Cristina Duarte Eiras [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil). Dept. de Engenharia Mecanica. Programa de Pos-Graduacao em Engenharia Mecanica]. E-mail: temrobe@vm.uff.br; Melo, Ricardo Bichara de [Light Servicos de Eletricidade S.A., Rio de Janeiro, RJ (Brazil). Gerencia de Estudos e Gestao de Geracao]. E-mail: rbmelo@light.com.br

2004-07-01

Several systems of generating electricity using water storage reservoirs. One problem that occurs constantly in these reservoirs is the accumulation of aquatic plants, such as Eichhornia crassipes, Eichhornia azurea, Pistia stratiotes and Salvinia that may cause serious problems for the system. Periodically, the biomass must be removed and disposed of appropriate form, so that does not cause contamination of soil, groundwater or allowing the proliferation of vectors. One possible destination is the use of biomass in a process of biodigestion, resulting in biogas. The bench of biodigester used in the experiment of biodigestion of aquatic plants is composed of a reactor containing the biomass, where the biogas is produced and a reservoir for the monitoring the production of biogas. The reactor is located inside a container containing water that can be heated by an electrical resistance, with the aim of maintaining the temperature inside the reactor around 35 deg C. The results of analysis of gas of the reactor was obtained using a gas chromatograph to CG MASTER of double ionization detector with a flame and thermal conductivity. These results show a percentage of 50% of methane in the biogas. Also, were analyzed the biomass in the biodigester for determination of humidity, total organic matter, waste mineral and organic carbon. The process of biodigestion of the mixture of aquatic plants: Eichhornia crassipes, Eichhornia azurea and Pistia stratiotes and Salvinia shows potential for obtaining biogas, with considerable levels of methane, in order to facilitate its recovery.

Farming: Animals or machines? | Mitchell | Southern African ...

African Journals Online (AJOL)

The intensive farming industry, where nonhuman animals are treated as machines in a production process, is abhorrent to many people, and more traditional farming may seem more acceptable ethically. Nowadays, one finds products on the market with labels such as organic and green, which suggest more humane ...

Biting midges (Diptera: Ceratopogonidae from Martín García Island, Argentina

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María M Ronderos

2011-09-01

Full Text Available Nearly 230 species of biting midges have been recorded or described from Argentina; 38 of them are known from the Buenos Aires province and only one is cited from Martín García Island. This paper presents the results raised from six collecting trips which took place on the island during spring 2005, summer 2006 and autumn 2009. Diverse sampling sites including permanent and temporary aquatic environments were chosen, most of the ten sampling sites were ponds of diverse origin, some of these environments were covered with floating vegetation as Lemna gibba, Lemna minuscule, Salvinia biloba, Salvinia minima, Azolla filiculoides, Limnobium laevigatum, Pistia stratiotes, Spirodela intermedia, Wolffiella oblonga and Wolffia columbiana. Other sites were placed in urban and suburban areas. Adults were collected with sweep nets at sunrise and sunset and with light traps at intervals of four to five hours at night, depending on electricity availability on the island. Larvae and pupae were collected with different implements depending on characteristics of each surveyed aquatic habitat. In free standing water, they were captured with small sieves or hand pipettes and micropipettes, flotation techniques were utilized for sampling vegetated areas, free and rooted floating hydrophytes were extracted for removing insects among them. Thirteen species of Ceratopogonidae were collected, three of Atrichopogon Kieffer, three of Forcipomyia Meigen, two of Dasyhelea Kieffer, four of Culicoides Latreille, and one of Bezzia Kieffer, all representing new records from the island. Rev. Biol. Trop. 59 (3: 1183-1194. Epub 2011 September 01.Alrededor de 230 especies de ceratopogónidos han sido registradas o descritas en Argentina, 38 de ellas son conocidas para la provincia de Buenos Aires y sólo una ha sido previamente citada para la Isla Martín García. En este trabajo se presentan los resultados obtenidos a partir de muestreos realizados en seis viajes a la isla

Biting midges (Diptera: Ceratopogonidae from Martín García Island, Argentina

Directory of Open Access Journals (Sweden)

María M Ronderos

2011-09-01

Full Text Available Nearly 230 species of biting midges have been recorded or described from Argentina; 38 of them are known from the Buenos Aires province and only one is cited from Martín García Island. This paper presents the results raised from six collecting trips which took place on the island during spring 2005, summer 2006 and autumn 2009. Diverse sampling sites including permanent and temporary aquatic environments were chosen, most of the ten sampling sites were ponds of diverse origin, some of these environments were covered with floating vegetation as Lemna gibba, Lemna minuscule, Salvinia biloba, Salvinia minima, Azolla filiculoides, Limnobium laevigatum, Pistia stratiotes, Spirodela intermedia, Wolffiella oblonga and Wolffia columbiana. Other sites were placed in urban and suburban areas. Adults were collected with sweep nets at sunrise and sunset and with light traps at intervals of four to five hours at night, depending on electricity availability on the island. Larvae and pupae were collected with different implements depending on characteristics of each surveyed aquatic habitat. In free standing water, they were captured with small sieves or hand pipettes and micropipettes, flotation techniques were utilized for sampling vegetated areas, free and rooted floating hydrophytes were extracted for removing insects among them. Thirteen species of Ceratopogonidae were collected, three of Atrichopogon Kieffer, three of Forcipomyia Meigen, two of Dasyhelea Kieffer, four of Culicoides Latreille, and one of Bezzia Kieffer, all representing new records from the island. Rev. Biol. Trop. 59 (3: 1183-1194. Epub 2011 September 01.

Dinâmica populacional da mariposa oriental em pomares de pessegueiro e ameixeira

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Hickel Eduardo Rodrigues

2003-01-01

Full Text Available O objetivo deste trabalho foi estudar a dinâmica populacional da mariposa oriental [Grapholita molesta (Busk] em pomares de pessegueiro e ameixeira. Os adultos foram monitorados em dois pomares de pessegueiro e um de ameixeira por cinco anos. Séries temporais equivalentes de temperaturas máximas e mínimas foram correlacionadas aos dados de flutuação populacional para se aferir a correspondência entre a ocorrência da praga e as flutuações de temperatura. A análise de Fourier das séries temporais das armadilhas de coleta de mariposas revelou dinâmicas cíclicas, com período principal médio de 53,91 semanas. Um período menor médio, de 7,45 semanas, também ficou evidente e se aproxima do tempo médio de geração do inseto. A análise do espectro de potência das séries temporais, com e sem periodicidade, revelou que a dinâmica populacional de G. molesta possui um componente regular, caracterizado pelos períodos observados, e outro componente irregular, reminiscente de ruído 1/f, caracterizado pelas variações de amplitude, aparentemente irregulares, na ocorrência do inseto. A combinação desses dois componentes ocasiona um processo com domínio de baixas freqüências, próprio das dinâmicas periódicas ruidosas. Os ciclos de aparecimento da praga ocorrem em fase com os ciclos de flutuação de temperaturas máximas e mínimas.

The Sandia MEMS passive shock sensor : FY08 design summary.

Energy Technology Data Exchange (ETDEWEB)

Walraven, Jeremy Allen; Baker, Michael Sean; Clemens, Rebecca C.; Mitchell, John Anthony; Brake, Matthew Robert; Epp, David S.; Wittwer, Jonathan W.

2008-11-01

This report summarizes design and modeling activities for the MEMS passive shock sensor. It provides a description of past design revisions, including the purposes and major differences between design revisions but with a focus on Revisions 4 through 7 and the work performed in fiscal year 2008 (FY08). This report is a reference for comparing different designs; it summarizes design parameters and analysis results, and identifies test structures. It also highlights some of the changes and or additions to models previously documented [Mitchell et al. 2006, Mitchell et al. 2008] such as the way uncertainty thresholds are analyzed and reported. It also includes dynamic simulation results used to investigate how positioning of hard stops may reduce vibration sensitivity.

Massachusetts Institute of Technology / Andres Sevtshuk

Index Scriptorium Estoniae

Sevtshuk, Andres, 1981-

2006-01-01

A. Sevtshuk oma magistritööst "The Self-aware City / Enesest teadlik linn". Juhendaja William J. Mitchell. Koolist Massachusetts Institute of Technology, selle arhitektuuriosakonnast, arhitektuuri teadusmagistrantuurist

ECM. Kauneim heli pärast vaikust / Immo Mihkelson

Index Scriptorium Estoniae

Mihkelson, Immo, 1959-

2007-01-01

Uutest Saksa plaadifirma ECM heliplaatidest Frode Haltli "Passing Images", Roscoe Mitchell "The Transatlantic Art Ensemble Composition", Chritian Wallumrod "TRhe Zoo Is Far", Valentin Silvestrov "Symphony No. 6"

Fatigue Strength Assessment of Welded Mild Steel Joints Containing Bulk Imperfections

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Martin Leitner

2018-04-01

Full Text Available This work investigates the effect of gas pores, as bulk imperfections, on the fatigue strength of welded mild steel joints. Two test series containing different butt joint geometries and weld process parameters are included in order to achieve two variable types of pore sizes. Based on the √area-parameter by Murakami, the test series can be grouped into imperfections exhibiting √area < 1000 µm and √area > 1000 µm. Fatigue tests at a load stress ratio of R = 0.1 are performed, which act as comparison for the subsequent fatigue estimation. To assess the fatigue resistance, the approaches by Murakami, De Kazinczy, and Mitchell are utilized, which highlight certain differences in the applicability depending on the imperfection size. It is found that, on one hand, Murakami’s approach is well suitable for both small and large gas pores depending on the applied model parameters. On the other hand, the fatigue concepts by De Kazinczy and Mitchell are preferably practicable for large defects with √area > 1000 µm. In addition, the method by Mitchell incorporates the stress concentration factor of the imperfection, which can be numerically computed considering the size, shape, and location of the gas pore, as presented in this paper.

78 FR 24353 - Provisions for Fees Related to Hazardous Materials Endorsements and Transportation Worker...

Science.gov (United States)

2013-04-25

... Mitchell, Office of Intelligence and Analysis (OIA), TSA-10, Transportation Security Administration, 601... Management System (FDMS) Web page at http://www.regulations.gov ; (2) Accessing the Government Printing...

Dermatology nursing in the community: The Mitchell's Plain ...

African Journals Online (AJOL)

Financial support came from. Rotary International and the pharmaceutical industry. e course was given international recognition for dermatology, with the inclusion of a leprosy module. Since its inception, we have trained 157 nurses from. South Africa, Botswana, Kenya, Lesotho,. Malawi, Niger, Sierra Leone, Zimbabwe and.

77 FR 67862 - Notice of Availability of the Final Environmental Assessment (EA) and Finding of No Significant...

Science.gov (United States)

2012-11-14

... City Hall, Engineering Department, 123 S. Lincoln St., Aberdeen, SD 57401. Alexander Mitchell Library.... Peck, Acting Manager, Manager, Bismarck Airport District Office FAA, Great Lakes Region. [FR Doc. 2012...

Air–water interface of submerged superhydrophobic surfaces imaged by atomic force microscopy

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Markus Moosmann

2017-08-01

Full Text Available Underwater air retention of superhydrophobic hierarchically structured surfaces is of increasing interest for technical applications. Persistent air layers (the Salvinia effect are known from biological species, for example, the floating fern Salvinia or the backswimmer Notonecta. The use of this concept opens up new possibilities for biomimetic technical applications in the fields of drag reduction, antifouling, anticorrosion and under water sensing. Current knowledge regarding the shape of the air–water interface is insufficient, although it plays a crucial role with regards to stability in terms of diffusion and dynamic conditions. Optical methods for imaging the interface have been limited to the micrometer regime. In this work, we utilized a nondynamic and nondestructive atomic force microscopy (AFM method to image the interface of submerged superhydrophobic structures with nanometer resolution. Up to now, only the interfaces of nanobubbles (acting almost like solids have been characterized by AFM at these dimensions. In this study, we show for the first time that it is possible to image the air–water interface of submerged hierarchically structured (micro-pillars surfaces by AFM in contact mode. By scanning with zero resulting force applied, we were able to determine the shape of the interface and thereby the depth of the water penetrating into the underlying structures. This approach is complemented by a second method: the interface was scanned with different applied force loads and the height for zero force was determined by linear regression. These methods open new possibilities for the investigation of air-retaining surfaces, specifically in terms of measuring contact area and in comparing different coatings, and thus will lead to the development of new applications.

KETAHANAN HIDUP BEBERAPA JENIS TUMBUHAN DI KAWASAN VOID BEKAS TAMBANG BATUBARA

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Kissinger Kissinger

2018-04-01

Full Text Available The selection of plant species for phytoremediation activities is very important in the conservation of soil, water, plant, and animal life to create a conducive environment within a community or ecosystem. Plant survival is one indication for the selection of phytoremediation plants. This study aims to determine the survival of some plants in void areas of coal mining. Types of plants used are surface water plants species and the edge of void plant species. The plants of surface water area consisting of Kiambang (Salvinia sp., Enceng gondok (Eichornia crassipes, Genjer (Limnocharis flava, and Kangkung (Ipomoea aquatica. The plants which planted on edge of void were purun tikus (Eleocharis dulcis and Bamban (Donax canniformis. Time of observation time was 6 months. Data were analyzed using a tabular matrix that contained the percentage of plant life/period time. The growth of the plant is specifically defined according to the color visibility and the development of plant form. The results of the study found that the highest surface survival species were Kiambang (Salvinia sp. and Kangkung (Ipomoea aquatica. Both of them still survive for 6 months of observation. The growth percentage of these two plants at the end of the observations are 36% and 20% respectively. Enceng gondok (Eichhornia crassipes has a survival for 4 months. Whole water plant growth was depressed by indications of death, tendencies to yellowish-brownish or blackish, and smaller body parts. Purun tikus (Eleocharis dulcis and Bamban (Donax canniformis grown on the edge of voids have a high survival. Both of them showed ≥95% survival at the end of observation time.

77 FR 18259 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

Science.gov (United States)

2012-03-27

... Industrial Resources in Kansas City, Missouri MPS) 2008-2020 Grand Blvd., Kansas City, 12000205 St. Louis...., Lewiston, 12000213 Mitchell County Penland Post Office and General Store, 1162 Penland Rd., Penland...

77 FR 52135 - Advisory Committee on Homeless Veterans, Notice of Meeting

Science.gov (United States)

2012-08-28

... an on-going assessment of the effectiveness of the policies, organizational structures, and services... patient privacy to conduct a site visit at the Donald J. Mitchell VA Outpatient Clinic, Griffiss Business...

Radford McAlester flight paths

Data.gov (United States)

U.S. Environmental Protection Agency — Heights and position of UAS from starting point. This dataset is associated with the following publication: Aurell, J., B. Mitchell, V. Chirayath, J. Jonsson, D....

Plaadid / Mart Normet

Index Scriptorium Estoniae

Normet, Mart, 1979-

2005-01-01

Uutest heliplaatidest Kelly Osbourne "Sleeping in the Nothing", The Black Eyed Peas "Monkey Business", Faith Evans "The First Lady", Joni Mitchell "Songs of a Prairie Girl", Mylene Farmer "Que L'ombre"

Mutagenicity of Oil Burn Emissions

Data.gov (United States)

U.S. Environmental Protection Agency — Description included in the dataset. This dataset is associated with the following publication: DeMarini, D., S. Warren, K. Lavrich, A. Flen, J. Aurell, B. Mitchell,...

Dataset of NRDA emission data

Data.gov (United States)

U.S. Environmental Protection Agency — Emissions data from open air oil burns. This dataset is associated with the following publication: Gullett, B., J. Aurell, A. Holder, B. Mitchell, D. Greenwell, M....

75 FR 7570 - Federal Advisory Committee; Military Leadership Diversity Commission (MLDC); Meeting Cancellation

Science.gov (United States)

2010-02-22

... Chief Steven A. Hady, Designated Federal Officer, MLDC, at (703) 602-0838, 1851 South Bell Street, Suite 532, Arlington, VA, E-mail [email protected] . Dated: February 16, 2010. Mitchell S. Bryman...

Bookeri lühinimekiri on valitud

Index Scriptorium Estoniae

2004-01-01

Briti prestiizhseima kirjandusauhinna "The Man Booker Prize" lühinimekirja on jõudnud järgmised autorid: Achmat Dangor, Sarah Hall, Alan Hollinghurst, David Mitchell, Colm T̤ibín, Gerard Woodward jt.

Kuidas parvest õigel ajal lahti lasta? / Sirje Pärismaa

Index Scriptorium Estoniae

Pärismaa, Sirje, 1958-

2015-01-01

Tartut külastas ning esines kaasava hariduse konverentsil õpetajatele Uus-Meremaa Canterbury ülikooli hariduskolledži professor David Mitchell, kes on töötanud eri- ja kaasava hariduse konsultandina mitmes riigis

Kuula. Koduperenaine, kuid mitte meeleheitel / Mart Juur

Index Scriptorium Estoniae

Juur, Mart, 1964-

2007-01-01

Briti duost Everything but the Girl. Heliplaatidest: Niko "The Frozen Borderline: 1968 - 1970", "A Tribute to Joni Mitchell", "Quentin Tarantino's "Death Proof' OST", "Timbaland "Timbaland presents: Shock Value", Kaiser Chiefs "Yours Truly, Angry Mob"

Assessment, water-quality trends, and options for remediation of acidic drainage from abandoned coal mines near Huntsville, Missouri, 2003-2004

Science.gov (United States)

Christensen, Eric D.

2005-01-01

Water from abandoned underground coal mines acidifies receiving streams in the Sugar Creek Basin and Mitchell Mine Basin near Huntsville, Missouri. A 4.35-kilometer (2.7-mile) reach of Sugar Creek has been classified as impaired based on Missouri's Water Quality Standards because of small pH values [mine drainage (AMD) from two mine springs as well as small and diffuse seeps were observed to have an effect on water quality in Sugar Creek. Metal and sulfate loads increased and pH decreased immediately downstream from Sugar Creek's confluence with the Calfee Slope and Huntsville Gob drainages that discharge AMD into Sugar Creek. Similar effects were observed in the Mitchell Mine drainage that receives AMD from a large mine spring. Comparisons of water-quality samples from this study and two previous studies by the U.S. Geological Survey in 1987-1988 and the Missouri Department of Natural Resources in 2000-2002 indicate that AMD generation in the Sugar Creek Basin and Mitchell Mine Basin is declining, but the data are insufficient to quantify any trends or time frame. AMD samples from the largest mine spring in the Calfee Slope subbasin indicated a modest but significant increase in median pH from 4.8 to 5.2 using the Wilcoxan rank-sum test (p mine spring in the Mitchell Mine Basin indicated an increase in median pH values from 5.6 to 6.0 and a decrease in median specific conductance from 3,050 to 2,450 ?S/cm during the same period. Remediation of AMD at or near the sites of the three largest mine springs is geochemically feasible based on alkalinity addition rates and increased pH determined by cubitainer experiments and geochemical mixing experiments using the computer model PHREEQCI. Alkalinity values for seven cubitainer experiments conducted to simulate anoxic treatment options exceeded the targeted value for alkalinity [90 mg/L as calcium carbonate (CaCO3)] specified in Missouri's Total Maximum Daily Load program by 18 percent or more, but maximum pH values were

Pop / Maria Ulfsak

Index Scriptorium Estoniae

Ulfsak, Maria, 1981-

2007-01-01

Heliplaatidest: Mando Diao "Never Seen the Light of Day", Joyce & Tutty Moreno "Samba Jazz & Outras Bossas", Neil Young "Chrome Dreams II", John Fogerty "Revival", Opium Flirt "Tehislend", Joni Mitchell "Shine", Serj Tankian "Elect the Dead"

PRESSURE - WATER and Other Data from ISLAS ORCADAS and Other Platforms From North Atlantic Ocean and Others from 19320101 to 19841231 (NODC Accession 9000018)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — CAUTION: This data set needs to be investigated with Don Collins before the abstract can be finalised. After Suchira's discussion with Mitchell it is confirmed that...

Olfaction in the Colorado potato beetle: Ultrastructure of antennal ...

Indian Academy of Sciences (India)

Author Affiliations. A Sen1 2 B K Mitchell1. Department of Entomology, University of Alberta, Edmonton T6G 2E3, Alta., Canada; Entomology Research Institute, Loyola College, Chennai 600 034, India ...

Heat-Related Illnesses

Medline Plus

Full Text Available ... Your Wishes Visiting The ER Who Takes Care Of You In An Emergency? Checking Into ... Illnesses Dr. Glenn Mitchell , Emergency physician at Mercy Health System in Chesterfield, Missouri Heat-related illness can be ...

75 FR 44050 - Qualification of Drivers; Exemption Applications; Vision

Science.gov (United States)

2010-07-27

..., Mitchell L. Carmen, Christopher R. Cone, Walter O. Connelly, Stephen B. Copeland, Armando P. D'Angeli..., Andrew C. Kelly, Jason W. King, James T. Leek, Billy J. Lewis, Velmer L. McClelland, Larry McCoy, Sr...

29 CFR 776.22b - Guiding principles.

Science.gov (United States)

2010-07-01

... process of production. 3 3 Mitchell v. Vollmer & Co., ante; Cf. Armour & Co. v. Wantock, 323 U.S. 126. (b... both closely related and directly essential to the covered production. 5 5 Armour & Co. v. Wantock...

Nontarget lepidoptera species found in the pheromone traps for selected Tortricid species in 2002 and 2003 years

Directory of Open Access Journals (Sweden)

Eva Hrudová

2005-01-01

Full Text Available Pheromone traps were used to monitor the following tortricid moths, i.e. Adoxophyes orana, Archips podanus, A. rosanus, Hedya nubiferana, Pandemis heparana, Spilonota ocellana, Cydia pomonella, Cydia funebrana and Cydia molesta in the localities Brno-Tuřany (Brno-město, Nebovidy (Brno-venkov and Prakšice (Uherské Hradiště. Other Lepidoptera non-target species were present in these target-species pheromone traps, i.e. Adoxophyes orana, Agrotis segetum, Amphipoea oculaea, Archips rosanus, Celypha striana, Cydia coronillana, Enarmonia formosana, Epiblema scutulanum, Epinotia huebneriana, Eucosma fervidana, Euxoa tritici, Hedya pruniana, H. nubiferana, Lymantria dispar, Noctua pronuba, Notocelia rosaecolana, N. roborana, Pammene albuginana, P. suspectana, Pandemis cerasana, Pyrausta rectefascialis, P. aurata, Spilonota ocellana, Yponomeuta malinellus and Zygaena purpuralis.

An evaluation of parental knowledge of childhood asthma in a family ...

African Journals Online (AJOL)

1997-01-01

Jan 1, 1997 ... A family practice in Mandalay, Mitchell's Plain, on the Cape Flats. ... In the past two decades medical treatment has improved significantly with the .... administration of medications would lead to addiction and render the ...

Fulltext PDF

Indian Academy of Sciences (India)

Madhu

2006-05-06

May 6, 2006 ... in the study of modern cellular and developmental biology (Kessin 2001). ..... Kenneth Raper began his Ph. D. studies at Harvard, he went home to North Carolina .... book Mount Mitchell and the Black Mountains. References.

Misdaad in die Suid-Afrikaanse onderwys soos weerspieël in die ...

African Journals Online (AJOL)

Erna Kinsey

gebruikers via die Internet beskikbaar (http://www.samedia.uovs.ac.za). ...... From newspaper reports one can deduce that a culture of crime and violence prevails in South African ..... Vandals trash Mitchell's Plain primary school. Cape Argus, 3.

The Role of Knowledge in Alliances: A Meta-Analysis

Science.gov (United States)

2006-01-01

development, shared manufacturing arrangements, common distribution agreements, and franchising (Grant and Baden-Fuller 2004; Varadarajan and... entreprenuership and firm market performance." Strategic Management Journal, 22(6/7), 701-711. Singh, K., & Mitchell, W. (1996). "Precarious

Heat-Related Illnesses

Medline Plus

Full Text Available ... ICE” in Your Cell Phone Prepare for Disasters Communication With Your Family And Your Doctor About Your ... Dr. Glenn Mitchell , Emergency physician at Mercy Health System in Chesterfield, Missouri Heat-related illness can be ...

Comparison of three ice cloud optical schemes in climate simulations with community atmospheric model version 5

Science.gov (United States)

Zhao, Wenjie; Peng, Yiran; Wang, Bin; Yi, Bingqi; Lin, Yanluan; Li, Jiangnan

2018-05-01

A newly implemented Baum-Yang scheme for simulating ice cloud optical properties is compared with existing schemes (Mitchell and Fu schemes) in a standalone radiative transfer model and in the global climate model (GCM) Community Atmospheric Model Version 5 (CAM5). This study systematically analyzes the effect of different ice cloud optical schemes on global radiation and climate by a series of simulations with a simplified standalone radiative transfer model, atmospheric GCM CAM5, and a comprehensive coupled climate model. Results from the standalone radiative model show that Baum-Yang scheme yields generally weaker effects of ice cloud on temperature profiles both in shortwave and longwave spectrum. CAM5 simulations indicate that Baum-Yang scheme in place of Mitchell/Fu scheme tends to cool the upper atmosphere and strengthen the thermodynamic instability in low- and mid-latitudes, which could intensify the Hadley circulation and dehydrate the subtropics. When CAM5 is coupled with a slab ocean model to include simplified air-sea interaction, reduced downward longwave flux to surface in Baum-Yang scheme mitigates ice-albedo feedback in the Arctic as well as water vapor and cloud feedbacks in low- and mid-latitudes, resulting in an overall temperature decrease by 3.0/1.4 °C globally compared with Mitchell/Fu schemes. Radiative effect and climate feedback of the three ice cloud optical schemes documented in this study can be referred for future improvements on ice cloud simulation in CAM5.

Cloud MicroAtlas∗

Indian Academy of Sciences (India)

∗Any resemblance to the title of David Mitchell's book is purely intentional! RESONANCE | March 2017. 269 .... The most comprehensive reference we know of on the subject of cloud microphysics is the book .... Economic and. Political Weekly ...

Rezhissura momenta / Dmitri Babitshenko

Index Scriptorium Estoniae

Babitshenko, Dmitri

2006-01-01

Šveitsi fotograafi Graham Mitchelli tööde näitusest "The Big Picture" Tallinna restoranis Pegasus. Autori kommentaarid. G. Mitchell on elanud pool aastat Tallinnas ning näitusefotod on tehtud Tallinnas ja selle ümbruses

Seasonal variation in the biochemical composition of red seaweed ...

Indian Academy of Sciences (India)

ence of the nutritional quality of water that can be used for mass cultivation of Catenella ... purposes such as feed, fertilizer and as a source ... organic matter in the ecosystem (Mitchell and ..... colourant in marine fish aquaculture (Johnson.

a comparison of bond perform with reinforcements from son of bond ...

African Journals Online (AJOL)

User

steel that are manufactured from metal scraps (re- ... metal scraps from re-cycle obsolete vehicle and machine ..... (PAC) Reinforced With Glass-Fibre-Reinforced. Polymer ... 99 – 113. [8] Abrishami H. H. and Mitchell D. (1992) “Simulation of.

Towards a Flexible Theater Air Warfare Doctrine

National Research Council Canada - National Science Library

Gunzinger, Mark A

1996-01-01

"Billy Mitchell was right." These words hung in the foyer of the Air Force Air Command and Staff College during Desert Storm, reflecting the belief that air power had finally come of age in the skies over Iraq...

Critical Studies in Teaching and Learning - Vol 5, No 2 (2017)

African Journals Online (AJOL)

Developing scholarship of teaching and learning through a community of enquiry · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Vivienne Bozalek, Arona Dison, Melanie Alperstein, Veronica Mitchell, 1-15 ...

DIGITAL FLOOD INSURANCE RATE MAP DATABASE, Mitchell County, GA

Data.gov (United States)

Federal Emergency Management Agency, Department of Homeland Security — The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk...

Search Results | Page 764 | IDRC - International Development ...

International Development Research Centre (IDRC) Digital Library (Canada)

Results 7631 - 7640 of 9581 ... Judith D. Mitchell, University of Victoria ... The papers in this volume were selected from presentations made in a number of ... The past 50 years, however, have seen the forests of Southeast Asia largely disappear.

Heat-Related Illnesses

Science.gov (United States)

... Share this! EmergencyCareForYou » Emergency 101 » Heat-Related Illnesses Heat-Related Illnesses Dr. Glenn Mitchell , Emergency physician at ... about heat cramps and heat stroke and exhaustion. Heat Cramps Symptoms include muscle spasms, usually in the ...

Dance Theatre of Harlem: Inspiring the Deprived

Science.gov (United States)

Weil, Henry

1976-01-01

The Dance Theatre of Harlem, which includes both a school and a publicly performing dance company, is described from its inception by its artistic director, Arthur Mitchell, to its current activities. Budgets, student characteristics, and philosophy are discussed. (LBH)

TISSUE DISPOSITION OF DIMETHYLARSINIC ACID IN THE MOUSE AFTER ACUTE ORAL ADMINISTRATION

Science.gov (United States)

TISSUE DISPOSITION OF DIMETHYLARSINIC ACID IN THE MOUSE AFTER ACUTE ORAL ADMINISTRATIONMichael F. Hughes, Ph.D., Brenda C. Edwards, Carol T. Mitchell and Elaina M. Kenyon, Ph.D. United States Environmental Protection Agency, Office of Research and Development, Nation...

perception and attitudes of parents towards teenage pregnancy

African Journals Online (AJOL)

PROF. BARTH EKWEME

Mitchel, 2007). In response to the problem of ... teenage pregnancy is about 32% in the rural areas and. 10% in the ..... internet as well as breakdown of traditional mechanisms for coping .... girls in Ecuador's Amazon Basin: A case-control study.

77 FR 66663 - Senior Executive Service; Combined Performance Review Board (PRB)

Science.gov (United States)

2012-11-06

... Director, BPD; Leonard R. Olijar, Chief Financial Officer/Associate Director, BEP; Beverly Ortega Babers, Chief Administrative Officer, United States Mint; Cheri Mitchell, Chief Financial Officer/Assistant... States Mint; Mary G. Ryan, Deputy Administrator, TTB. Alternate Members Marty Greiner, Chief Financial...

78 FR 40459 - Applications for New Awards; Technical Assistance and Dissemination To Improve Services and...

Science.gov (United States)

2013-07-05

... that have traditionally been underrepresented based on race, color, national origin, linguistic... have traditionally been underrepresented based on race, color, national origin, linguistic diversity... elementary schools. School Psychology Quarterly, 23, 462-473. Bradshaw, C. P., Mitchell, M. M., & Leaf, P. J...

Southern African Journal of Anaesthesia and Analgesia - Vol 23, No ...

African Journals Online (AJOL)

Robert Wise, Kim de Vasconcellos, David Skinner, Reitze Rodseth, Dean Gopalan, David Muckart, Zohra Banoo, Tashmin Bisseru, Steve Blakemore, Jenine de Meyer, Michael Faurie, Kom Govender, Timothy Hardcastle, Prakash Jeena, Nicky Kalafatis, Kroshlan Kistan, Theroshnie Kisten, Carolyn Lee, Colin Mitchell, ...

75 FR 30197 - Science and Technology Reinvention Laboratory Personnel Management Demonstration Project...

Science.gov (United States)

2010-05-28

... address its problems in human resources management: Accessions and internal placements, sustainment, and... pay setting and adjustment, recognition, and career advancement opportunities; (3) Human Resources (HR... FURTHER INFORMATION CONTACT: Office of Naval Research: Ms. Margaret J. Mitchell, Director, Human Resources...

SCIL Executive Summaries.

Science.gov (United States)

Samuels, Alan R.; And Others

1987-01-01

These five papers by speakers at the Small Computers in Libraries 1987 conference include: "Acquiring and Using Shareware in Building Small Scale Automated Information systems" (Samuels); "A Software Lending Collection" (Talab); "Providing Subject Access to Microcomputer Software" (Mitchell); "Interfacing Vendor…

1 - 5_Bunza

African Journals Online (AJOL)

DR. AMINU

2014-06-01

Jun 1, 2014 ... Diabetic nephropathy is a common phenomenon in patients with diabetes. Its prevalence risk ... ketoacidosis, or hyperosmolar coma (David, 2001). As ..... Haffner, S.M, Stern, M.p, Gruber, M.k, Hazuda, H.P,. Mitchel, M.D,and ...

ENERGY POLICY

OpenAIRE

Avrupa Topluluğu Enstitüsü, Marmara Üniversitesi

2015-01-01

John Mitchell considers EU policies on energy supply security; Tera Allas on energy security of supply in the UK: the way forward; Peter Odell assesses public/private partnerships on the UKCS; Olivier Appert provides an overview of French energy policy.

Corporate Governance

International Development Research Centre (IDRC) Digital Library (Canada)

Andy Knight; David Malone; Faith Mitchell. Finance and Audit Committee. Members: Denis Desautels (Chairman); Ahmed Galal;. Frieda Granot; Elizabeth Parr-Johnston; Andrés Rozental;. Gordon Shirley. Governance Committee. Members: The Honourable Barbara McDougall (Chairman);. Claude-Yves Charron; Denis ...

77 FR 15994 - Southern Region Recreation Resource Advisory Committee

Science.gov (United States)

2012-03-19

... DEPARTMENT OF AGRICULTURE Forest Service Southern Region Recreation Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting via teleconference. SUMMARY: The Southern Region... and requests to Southern Region Recreation RAC, Caroline Mitchell, P.O. Box 1270, Hot Springs, AR...

Metode de atracţie şi localizare a faunei utile în agrocenoza culturii de piersic ca factor biologic de control al densităţii speciilor dăunătoare

Directory of Open Access Journals (Sweden)

Mihai BATCO

2016-06-01

Full Text Available The use of such biorational means as nectariferous plants (Eruca sativa, Fagopyrum esculentum, Phacelia tanacetifolia, Satureja hortensis, Lobulalaria maritima, Dracocephalum moldavica and lawn grasses, protein-carbohydrate compositions and methyl salicylate as factors influencing the beneficial fauna in peach orchard agrocenosis has contributed to the attraction and location of 26 species of Encyrtidae belonging to 19 genera. The species capable to influence the numeric dynamics of economically important species such as oriental moth (Grapholita molesta Busck, peach twig borer (Anarsia lineatella Z, San Jose scale (Diaspidiotus perniciosus Comst., fruit apple scale (Eulecanium coryli L. were nominated. Encyrtidae species whose hosts are potential pests of peach trees, as well as hyperparasite species and parasites of beneficial predatory insects were registered. The stages for timely application of biorational means for useful fauna in the peach orchard agrocenosis during the vegetation period were established. Rezumat. Aplicarea mijloacelor bioraţionale precum culturile nectarifere (Eruca sativa, Fagopyrum esculentum, Phacelia tanacetifolia, Satureja hortensis, Lobulalaria maritima, Dracocephalum moldavica şi iarba de gazon, compoziţiile proteico-glucidice şi metilsalicilatul ca factori de influenţă asupra faunei benefice în agrocenoza culturii de piersic au contribuit la atracţia şi localizarea a 26 specii de Encyrtidae, care se atribuie la 19 genuri. Sunt nominalizate speciile capabile de a influenţa dinamica numerică a speciilor economic importante, aşa ca molia orientală (Grapholita molesta Busck, molia vărgată (Anarsia lineatella Z, păduchele din San Jose (Diaspidiotus perniciosus Comst., păduchele ţestos fals al mărului (Eulecanium coryli L.. Au fost semnalate specii de Encyrtidae ale căror gazde sunt dăunători potenţiali ai piersicului şi de asemenea specii hiperparazite şi paraziţi ai insectelor pr

Mgbakoigba: Journal of African Studies - Vol 7, No 1 (2017)

African Journals Online (AJOL)

Killing, viewed from a conflict resolution perspective: a 'just punishment' using the Shona people's lenses · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Obediah Dodo, Enock Chikohora, Alois Muzenje, Gloria Dodo, Mitchell Zihanzu, 1-13 ...

Mappaemundi, Maps and the Romantic Aesthetic in Children's Books

Science.gov (United States)

Doherty, Peter

2017-01-01

This article considers the extent to which medieval "mappaemundi" are an important precedent for literary cartographies in fiction for children. It connects the notion of embeddedness to Peta Mitchell's (2011) suggestion that "mappaemundi" refused to entertain the later, post-Enlightenment cartographic distinction between…

Identification of Bioethical Dilemmas, Ethical Reasoning, and Decision-Making in Military Emergency Medicine Departments

Science.gov (United States)

2000-05-01

2000. A cover letter attached to the five page questionnaire explained the nature and scope of the study, informed the providers of voluntary ... euthanasia , rather than the application of ethics (theories, principles, concepts, rules) to clinical practice (Msyer, Kerridge & Mitchell, 1995). Not

A Comprehensive Context for Mobile-Code Deployment

Science.gov (United States)

2005-01-01

18 Gal, Probst, Franz, 2003 Freund, Mitchell, 1999 Sohr, 1999, 2001 Microsoft, 2000 LSDRG, 2002 Dean, Felten, Balfanz , Wallach, 2003 Govindavajhala...D. Balfanz . Java security: Web browsers and beyond. In D. E. Denning and P. J. Denning, editors, Internet Besieged: Countering Cyberspace Scofflaws

Heat-Related Illnesses

Medline Plus

Full Text Available ... Share this! EmergencyCareForYou » Emergency 101 » Heat-Related Illnesses Heat-Related Illnesses Dr. Glenn Mitchell , Emergency physician at ... about heat cramps and heat stroke and exhaustion. Heat Cramps Symptoms include muscle spasms, usually in the ...

Improving Diagnosis of Sepsis After Burn Injury Using a Portable Sepsis Alert System

Science.gov (United States)

2016-10-01

Research Nurse Researcher Identifier (e.g. ORCID ID): Nearest person month worked: 1 Contribution to Project: Mr. Mitchell will assure that...Goal(s): This project is to provide physiological data, using a large animal model of hemodynamic shock. Role: Principal Investigator Sponsor

Oral Health in Rural Communities

Science.gov (United States)

... people with partial edentulism when compared to urban (Urban, 38.4%, High Poverty Rural 51.3%, Other Rural, 45%). Counties with high rates of full edentulism are also rural (Urban, 4.3%, High-Poverty Rural 10.5%, Other Rural, 8.2%). ( Mitchell, ...

75 FR 34074 - Postal Pricing Methods

Science.gov (United States)

2010-06-16

... Methods AGENCY: Postal Regulatory Commission. ACTION: Notice of proposed rulemaking. SUMMARY: The... price sensitivity (elasticity) to volumes actually mailed during the rebate program. This method is... indicated by the market elasticity. Mitchell Comments at 4-6. Postal Service method. In its data collection...

Probabilistic models for structured sparsity

DEFF Research Database (Denmark)

Andersen, Michael Riis

sparse solutions to linear inverse problems. In this part, the sparsity promoting prior known as the spike-and-slab prior (Mitchell and Beauchamp, 1988) is generalized to the structured sparsity setting. An expectation propagation algorithm is derived for approximate posterior inference. The proposed...

Des liens constructifs au Costa Rica | IDRC - International ...

International Development Research Centre (IDRC) Digital Library (Canada)

Une femme sur un chantier de construction. Madelaine Artavia Sotela. Madelaine Artavia Sotela a lancé sa propre entreprise de construction, dont la croissance est en partie attribuable au programme de WEConnect International. Alanna Mitchell, Canadian Geographic. WEConnect International jumelle des entreprises ...

The development of a wetland classification and risk assessment index (WCRAI) for non-wetland specialists for the management of natural freshwater wetland ecosystems

CSIR Research Space (South Africa)

Oberholster, Paul J

2014-02-01

Full Text Available Botany 55, 247-260. Mitchell, P., 1990. The Enviromental Conditions of Victoria Streams, Department of Water Resources, Melbourne, Victoria. Mitsch, W.J., Gosselink, J.G., 2000. Wetlands 3 third edition, John Wiley& Sons Inc, New York. Morant, P.D., 1983...

Apollo 14 crewmen near site of volcanic eruption on Hawaii

Science.gov (United States)

1970-01-01

Prime crewmen and backup crewmen of the Apollo 14 mission look over an area near the site of a volcanic eruption in Aloi Alae, Hawaii. Astronauts Alan B. Shepard Jr. (leaning with left hand on ground) and Edgar D. Mitchell (behind Shepard, wearing dark glasses) are the prime crewmen scheduled to walk on the moon. Astronauts Eugene A. Cernan (almost obscured at extreme left) and Joe H. Engle (partially visible, on Cernan's right) are back-up crew commander and lunar module pilot, respectively, for the mission. Others in the photograph are Pat Crosland (in hard hat), a geologist and a park ranger in Hawaii Volcanoes National Park; Michael C McEwen (facing Mitchell) of the Geology Branch, Lunar and Earth Sciences Division, Manned Spacecraft Center; and Astronaut Bruce McCandless II, who made the trip to serve as a spacecraft communicator during simulations of extravehicular activity (EVA) on the lunar surface.

Apple biological and physiological disorders in the orchard and in postharvest according to production system

Directory of Open Access Journals (Sweden)

Carlos Roberto Martins

2013-03-01

Full Text Available The study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and degeneration ('Gala', and bitter pit ('Fuji' and 'Catarina'. The incidence of postharvest rot was not influenced by apple production system.

Isolation of non-sulphur photosynthetic bacterial strains efficient in hydrogen production at elevated temperatures

Energy Technology Data Exchange (ETDEWEB)

Singh, S.P.; Srivastava, S.C. (Banaras Hindu Univ., Varanasi (IN). Centre of Advanced Study in Botany)

1991-01-01

Four strains of non-sulphur photosynthetic bacteria were isolated from root zone associations of aquatic plants like Azolla, Salvinia and Eichhornia, as well as the deep-water rice. Based on the gross cell morphology and pigmentation, the isolates resembled Rhodopseudomonas sp. and have been designated as BHU strains 1 to 4, respectively. When subjected to elevated temperature (from 33-45{sup o}C), substantial growth/hydrogen production could be observed only in strains 1 and 4. Strains 2 and 3 on the other hand, showed diminished growth and negligible hydrogen photoproduction. The BHU strains 1 and 4 have been selected as the most active (thermostable) hydrogen producing strains of local origin as far as the Indian tropical climate is concerned. (author).

CCoAOMT Down-Regulation Activates Anthocyanin Biosynthesis in Petunia.

Science.gov (United States)

Shaipulah, Nur Fariza M; Muhlemann, Joëlle K; Woodworth, Benjamin D; Van Moerkercke, Alex; Verdonk, Julian C; Ramirez, Aldana A; Haring, Michel A; Dudareva, Natalia; Schuurink, Robert C

2016-02-01

Anthocyanins and volatile phenylpropenes (isoeugenol and eugenol) in petunia (Petunia hybrida) flowers have the precursor 4-coumaryl coenzyme A (CoA) in common. These phenolics are produced at different stages during flower development. Anthocyanins are synthesized during early stages of flower development and sequestered in vacuoles during the lifespan of the flowers. The production of isoeugenol and eugenol starts when flowers open and peaks after anthesis. To elucidate additional biochemical steps toward (iso)eugenol production, we cloned and characterized a caffeoyl-coenzyme A O-methyltransferase (PhCCoAOMT1) from the petals of the fragrant petunia 'Mitchell'. Recombinant PhCCoAOMT1 indeed catalyzed the methylation of caffeoyl-CoA to produce feruloyl CoA. Silencing of PhCCoAOMT1 resulted in a reduction of eugenol production but not of isoeugenol. Unexpectedly, the transgenic plants had purple-colored leaves and pink flowers, despite the fact that cv Mitchell lacks the functional R2R3-MYB master regulator ANTHOCYANIN2 and has normally white flowers. Our results indicate that down-regulation of PhCCoAOMT1 activated the anthocyanin pathway through the R2R3-MYBs PURPLE HAZE (PHZ) and DEEP PURPLE, with predominantly petunidin accumulating. Feeding cv Mitchell flowers with caffeic acid induced PHZ expression, suggesting that the metabolic perturbation of the phenylpropanoid pathway underlies the activation of the anthocyanin pathway. Our results demonstrate a role for PhCCoAOMT1 in phenylpropene production and reveal a link between PhCCoAOMT1 and anthocyanin production. © 2016 American Society of Plant Biologists. All Rights Reserved.

A DATABASE FOR TRACKING TOXICOGENOMIC SAMPLES AND PROCEDURES WITH GENOMIC, PROTEOMIC AND METABONOMIC COMPONENTS

Science.gov (United States)

A Database for Tracking Toxicogenomic Samples and Procedures with Genomic, Proteomic and Metabonomic Components Wenjun Bao1, Jennifer Fostel2, Michael D. Waters2, B. Alex Merrick2, Drew Ekman3, Mitchell Kostich4, Judith Schmid1, David Dix1Office of Research and Developmen...

Beyond the drip-line: a high-resolution open-air Holocene hunter-gatherer sequence from highland Lesotho

CSIR Research Space (South Africa)

Mitchell, P

2011-03-01

Full Text Available the drip-line: a high-resolution open-air Holocene hunter-gatherer sequence from highland Lesotho Peter Mitchell1, Ina Plug2, Geoff Bailey3, Ruth Charles4, Amanda Esterhuysen5, Julia Lee Thorp6, Adrian Parker7 & Stephan Woodborne8 The activities...

Psychometric analysis of the performance data of simulation-based assessment: A systematic review and a Bayesian network example

NARCIS (Netherlands)

de Klerk, Sebastiaan; Veldkamp, Bernard P.; Eggen, Theodorus Johannes Hendrikus Maria

2015-01-01

Researchers have shown in multiple studies that simulations and games can be effective and powerful tools for learning and instruction (cf. Mitchell & Savill-Smith, 2004; Kirriemuir & McFarlane, 2004). Most of these studies deploy a traditional pretest-posttest design in which students usually do a

Nudge lullaby

NARCIS (Netherlands)

de Haan, T.; Linde, J.

2011-01-01

Libertarian paternalism (Thaler and Sunstein 2003), using peoples own heuristics and biases to steer them to better choices while preserving choice freedom, has shown to be an effective and popular policy paradigm. It has also sparked many philosophical debates (e.g. Mitchell (2005) and Sugden

21st Century Military-Media Relationships: Improving Relations and the Narrative Through Education

Science.gov (United States)

2014-04-30

involvement that our commanders have traditionally allocated to conventional maneuver 21 Bob Drury and Tom Clavin, The Heart of Everything That Is...October 2, 2013). 60 Drury , Bob and Tom Clavin. The Heart of Everything That Is. New York: Simon & Schuster, 2013. Fuse, Koji, Mitchell

Les dessous de l'opération Licorne en Côte d'Ivoire : pour une ...

African Journals Online (AJOL)

chifaou.amzat

14 avr. 2010 ... troops or military forces by one independent country […] across the ..... des ressources est renforcé par l'annexe II de l'Accord colonial de défense ..... Mitchell, C.R, 1970, « Civil Strife and the Involvement of External Parties »,.

78 FR 34655 - Science and Technology Reinvention Laboratory Personnel Management Demonstration Project...

Science.gov (United States)

2013-06-10

... CONTACT: Office of Naval Research: Ms. Margaret J. Mitchell, Director, Human Resources Office, Office of... established position management criteria, and (2) Pay Band V of the S&E Professional Career Track require... Personnel Management Demonstration Project, Department of Navy, Office of Naval Research (ONR); Proposed...

A Comparative Study of Administrator and Special Education Teacher Perceptions of Special Education Teacher Attrition and Retention

Science.gov (United States)

Sheldrake, Danielle Angelina

2013-01-01

This mixed methods study identifies perceived causes of and solutions to the attrition of special education teachers. Researchers have documented that special education teaching positions encounter higher attrition rates than their general education peers (Katsiyannis, Zhang, & Conroy in Olivarez & Arnold, 2006; Mitchell & Arnold,…

Comparing the Efficacy of Airpower and Heavy Ground Power

Science.gov (United States)

2011-12-01

diminished loss of life and treasure and will thus be a distinct benefit to civilization,”50 another advertisement for airpower’s efficiency. Mitchell...VA: RAND Corporation, 2005. Stone, John. The Tank Debate: Armour and the Anglo-American Military Tradition. London: Harwood Academic Publishers

76 FR 53927 - Kansas; Major Disaster and Related Determinations

Science.gov (United States)

2011-08-30

... determinations. DATES: Effective Date: July 29, 2011. FOR FURTHER INFORMATION CONTACT: Peggy Miller, Office of... Public Assistance and Hazard Mitigation will be limited to 75 percent of the total eligible costs...: Barton, Clay, Cloud, Hamilton, Jewell, Lincoln, Logan, Lyon, Marion, Mitchell, Morton, Osage, Osborne...

A URANIUM THORIUM DATED LATE EEMIAN OR EARLY MIDLANDIAN ORGANIC DEPOSIT FROM NEAR KILFENORA BETWEEN SPA AND FENIT, CO KERRY, IRELAND

NARCIS (Netherlands)

HEIJNIS, H; RUDDOCK, J; COXON, P

This paper discusses the dating of stratigraphically important Quaternary sequences from a site near Fenit, Co. Kerry, which have been the subject of debate since they were first described by Mitchell in 1970. The overall stratigraphy of the Quaternary deposits have been investigated and detailed

ACCUMULATION AND METABOLISM OF ARSENIC IN MICE AFTER REPEATED ADMINISTRATION OF ARSENATE

Science.gov (United States)

Accumulation and metabolism of arsenic in mice after repeated oral administration of arsenate, Hughes, M. F., Kenyon, E. M., Edwards, B. C., Mitchell, C. T., Del Razo, L. M., and Thomas, D. J. The human carcinogen inorganic arsenic (iAs) is a pervasive environmental ...

Engine Handling.

Science.gov (United States)

1983-02-01

circumstances, be significant. Two of the most important - temperature distortion and flow swirl, are discussed below. 2048 6.1 Intake Temperature...gasdynamischer ParameterUberwachung. VDI -Fortschritt-Bericht, Reihe 7. Mr- 67, 1982 8 London, A.L., Biancardi, R.R.. Mitchell, J.W.: The Transient

Des liens constructifs au Costa Rica | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

18 oct. 2017 ... Une femme sur un chantier de construction. Madelaine Artavia Sotela. Madelaine Artavia Sotela a lancé sa propre entreprise de construction, dont la croissance est en partie attribuable au programme de WEConnect International. Alanna Mitchell, Canadian Geographic. WEConnect International jumelle ...

75 FR 61135 - Privacy Act of 1974; System of Records

Science.gov (United States)

2010-10-04

... Business Innovative Research (SBIR) Organizations/Groups. CATEGORIES OF RECORDS IN THE SYSTEM: Information... title, by any of the following methods: * Federal Rulemaking Portal: http://www.regulations.gov . Follow...,'' dated February 8, 1996 (February 20, 1996; 61 FR 6427). Dated: September 29, 2010. Mitchell S. Bryman...

Browse Title Index

African Journals Online (AJOL)

Items 1 - 50 of 69 ... ... with enabling and constraining teaching and learning environments, Abstract PDF. Mabokang Monnapula-Mapesela. Vol 5, No 2 (2017), Developing scholarship of teaching and learning through a community of enquiry, Abstract PDF. Vivienne Bozalek, Arona Dison, Melanie Alperstein, Veronica Mitchell.

Download this PDF file

African Journals Online (AJOL)

Neuropsychiatry and behavioural psychology. Neuropsychiatry and Behavioural Neurology Explained. Alex J. Mitchell. Pp. 525. Edinburgh: Saunders. 2004. ISBN 0-7020-. 2688-3. Neuropsychiatry is an exciting and rapidly evolving field of psy- chiatry. ... is colourful and has lots of useful illustrations and text boxes to sup-.

carcass amino acid composition and utilization of dietary amino

African Journals Online (AJOL)

Maynard (1954), Fisher & Scott (1954), Forbes &. Rao (1959), Hartsook & Mitchell (1956). King (1963) showed that individual amino acids in the carcass could differ widely from the requirement by the anirnal for those particular amino acids used for purposes other than protein synthesis and subsequent retention. How-.

Negative Emotional Reactions to Challenging Behaviour and Staff Burnout: Two Replication Studies

Science.gov (United States)

Rose, David; Horne, Sharon; Rose, John L.; Hastings, Richard P.

2004-01-01

Background: Hastings, R. P. ["American Journal on Mental Retardation" (2002) Vol. 107, pp. 455-467] hypothesized that staff negative emotional reactions to challenging behaviour might accumulate over time to affect staff well-being. Only one previous study (Mitchell, G.& Hastings, R. P. ["American Journal on Mental…

City Car = The City Car / Andres Sevtshuk

Index Scriptorium Estoniae

Sevtshuk, Andres, 1981-

2008-01-01

Massachusettsi Tehnoloogiainstituudi (MIT) meedialaboratooriumi juures tegutseva Targa Linna Grupi (Smart City Group) ja General Motorsi koostööna sündinud kaheistmelisest linnasõbralikust elektriautost City Car. Nimetatud töögrupi liikmed (juht William J. Mitchell, töögruppi kuulus A. Sevtshuk Eestist)

The nature of intractable conflict: Resolution in the twenty-first century

African Journals Online (AJOL)

man's violent aggressive nature which could result in warlike actions and responses. Using examples from primatology, Mitchell is able to suggest how environments impact on later human behaviour. Chapter two explains, using Johan Galtung's triangular model of conflict structure. (a constant theme throughout the book), ...

Assembling Aarhus West

DEFF Research Database (Denmark)

Krogh, Mads

2017-01-01

of “glocalized” rap as ‘resistance vernaculars’ or ‘global noise’ (cf. Hawkins et al. 2004, Mitchell 2001) risk maintaining overly homogenous understandings of genre. In particular, I appeal to the Deleuzian concept of assemblage to highlight heterogeneity – and more specifically continuous de- and re...

Pathways to Resilience in Semi-Arid Economies (PRISE)

International Development Research Centre (IDRC) Digital Library (Canada)

rlarbey

PRISE Goal. This research will support the emergence of equitable, climate resilient economic development in semi-arid lands through research excellence and ... change in semi-arid areas, and how is the private sector adapting? 4. How do ... Role. Individual. Contact email. Lead Principal Investigator. Dr Tom Mitchell.

Enhancing Inter-Firm Networks and Interorganizational Strategies. Research in Management Consulting Series.

Science.gov (United States)

Buono, Anthony F., Ed.

This book contain papers 13 papers on enhancing inter-firm networks, including by intervening in mergers and acquisitions and developing strategic alliances and partnerships. The following papers are included: "Introduction" (Anthony F. Buono); "Making Mergers and Acquisitions Work: A Guide to Consulting Interventions" (Mitchell Lee Marks);…

Duped by the Frailty Myth: USMC Gender Based Physical Fitness Standards

Science.gov (United States)

2012-05-07

by modifying the PFT on three occasions (see figure 1). Today the PFT for women consists of a three-mile run, abdominal crunches, and the FAH (see...TECOM, Quantico, VA, August 1-5, 2012. Mitchell, Brian. Weak link: The Feminization of the American Military. Washington D.C

Reactive transport and the genesis of kimberlites

DEFF Research Database (Denmark)

Pilbeam, Llewellyn; Nielsen, Troels; Waight, Tod Earle

was short magmatic temperatures of ~900oC were supported. ! [1] Nielsen & Sand (2008), Canadian Mineralogist 46, 1043- 1061 [2] Ardnt, Guitreau, Boullier, Le Roex, Tommasi, Cordier & Sobolev (2010), Journal of Petrology 51, 573-602 [3] Mitchell (2008), Journal of Volcanology and Geothermal Research 174, 1...

Working Papers in Educational Linguistics, 1996-1997.

Science.gov (United States)

Furumoto, Mitchell A., Ed.; And Others

1997-01-01

Reports of language research in the 1996 issue include: "Corpus Planning for the Southern Peruvian Quechua Language" (Serafin M. Coronel-Molina); "Foreign Language Planning in U.S. Higher Education: The Case of a Graduate Business Program" (Mitchell A. Furumoto); "Charting New Directions: Of Communication in a Social…

Globalization--Education and Management Agendas

Science.gov (United States)

Cuadra-Montiel, Hector, Ed.

2012-01-01

Chapters in this book include: (1) Internationalization and Globalization in Higher Education (Douglas E. Mitchell and Selin Yildiz Nielsen); (2) Higher Educational Reform Values and the Dilemmas of Change: Challenging Secular Neo-Liberalism (James Campbell); (3) "Red Light" in Chile: Parents Participating as Consumers of Education Under…

USING IN VIVO GAS UPDATE STUDIES TO ESTIMATE METABOLIC RATE CONSTANTS FOR CCL CHEMICALS: 1,1-DICHLOROPROPANE AND 2,2-DICHLOROPROPANE

Science.gov (United States)

USING IN VIVO GAS UPTAKE STUDIES TO ESTIMATE METABOLIC RATE CONSTANTS FOR CCL CHEMICALS: 1,1-DICHLOROPROPENE AND 2,2-DICHLOROPROPANE. Mitchell, C T, Evans, M V, Kenyon, E M. NHEERL, U.S. EPA, ORD, ETD, RTP, NC The Safe Drinking Water Act Amendments of 1996 required ...

A Spoken English Recognition Expert System.

Science.gov (United States)

1983-09-01

34Speech Recognition by Computer," Scientific American. New York: Scientific American, April 1981: 64-76. 16. Marcus, Mitchell P. A Theo of Syntactic...prob)...) Pcssible words for voice decoder to choose from are: gents dishes issues itches ewes folks foes comunications units eunichs error * farce

Growth, carcase and meat characteristics of stress susceptible and ...

African Journals Online (AJOL)

Growth, carcase and meat characteristics of stress susceptible and stress resistant. South African Landrace gilts. P.H. Heinze*. Animal and Dairy Science Research Institute, Private Bag X2, Irene, 1675Republic of South Africa. G. Mitchell. Department of Physiology, Medical School, University of the Witwatersrand, York ...

Tehing mulla ja päikesega / Heiki Raudla

Index Scriptorium Estoniae

Raudla, Heiki, 1975-

2006-01-01

Ühendriikide ning kogu maailma novaatorlike farmerite tippu kuuluvad isa ja poeg, Wade ning Clay Mitchell, praktiseerivad kulude minimeerimiseks ja tulude maksimeerimiseks ainulaadset riba-(vahele)viljelust, maa harimisel kasutavad nad ülitäpset automaatjuhtimist. Vt. samas: Põlvest põlve; Strip-intercropping - tagasi muistsete võtete juurde

Obesity and Associated Adverse Health Outcomes Among U.S. Military Members and Veterans: Findings from the Millennium Cohort Study

Science.gov (United States)

2016-06-27

Jenkins; David Luxton, PhD; Danielle Mitchell; Kristin Motylinski; Anna Nagel, MPH; Chiping Nieh, PhD; Chris O’Malley, MPH; Ser- guey Parkhomovsky...1996;143:228-239. 36. Barlas FM, Higgins WB, Pflieger JC, Diecker K. 2011 Department of Defense Health Related Behaviors Survey of Active Duty

Microbiological stimulation of phytoremediation process using Salvinia natans to mercury contamined water

OpenAIRE

Filyarovskaya Viktoriya; Sitarska Magdalena; Traczewska Teodora; Wolf Mirela

2017-01-01

An alternative to traditional cleaning methods of heavy metals in the water environment is phytoremediation. They efficiency depends on used technological process conditions as well as plant species. One of the most dangerous metallic elements mercury plays a particular role, which is a trace element and a physiologically foreign in living organisms. Mercury has a high degree of toxicity with strong affinity to thiol groups. This may cause an adverse effect on the enzymatic processes and cons...

The Role of Interstate Policy Organizations in State Higher Education Policy Processes: Perceptions of Policymakers and Policy Shapers

Science.gov (United States)

Michelau, Demaree K.

2010-01-01

Political science offers rich explanations for how different types of organizations that are focused on public policy decisions (e.g., boundary organizations, interest groups, policy networks (or communities), and think tanks) influence public policy processes (Cash, Clark, Alcock, Dickson, Eckley, Guston, Jager, and Mitchell 2003; Guston 2001;…

Multimorbidity in a large district hospital: A descriptive cross ...

African Journals Online (AJOL)

Mitchell's Plain District Hospital, Western Cape Department of Health, Cape Town, South Africa. Corresponding author: E de .... group as a whole, 6.3% of patients had mental illness. .... be investigated, research can also be focused specifically on reducing .... strongly affected by social stigma, particularly in the case of illicit.

Proceedings of the Conference on Toxicology (18th) Held in Dayton, Ohio on 1-3 November 1988

Science.gov (United States)

1990-07-01

contacting the authors or Mitchell and Gauthier, Inc. ACKNOWLEDGMENTS We thank Dr. Allen Vinegar , NSI Technology Services Corp., for allowing us use of...forestomach by fermentation , yet when dosed, the drinking water gives tumors. I guess I would be interested in your speculation or comments as to why you

Towards a democratisation of new media spaces in multilingual ...

African Journals Online (AJOL)

Kate H

strict domain use and other official and social structurings of language. ... focused on the interaction between English and Zambian languages (cf. ..... about the beauty and “sexual attractiveness” of Nsenga women (Mitchell 1956:8; Epstein .... tujilijili as a highly addictive alcohol that also reduces a man's physical strength ...

The Piter Jelles Medialab: longitudinal research on a secondary school as a living lab, a roadmap to basic knowledge media innovation

NARCIS (Netherlands)

Huizing, K.J.; de Vries, Sjoerd A.; Poelstra, R.

2013-01-01

NHL University in Leeuwarden (The Netherlands) signed an agreement with the Piter Jelles secondary school Leeuwarder Lyceum in order to monitor the implementation and use of the iPad in its classes. The Piter Jelles secondary school acts as a living lab. According to Mitchel, a living lab represents

Heritage management and sustainable development in perspective: theory, law, and practice

NARCIS (Netherlands)

Veldpaus, L.

2015-01-01

Books reviewed: Heritage Planning: Principles and Process by Harold Kalman, Routledge, 2014, 344 pp., £36.99, ISBN 978-1-13-801792-4; Conserving Cultural Landscapes: Challenges and New Directions by Ken Taylor, Archer St. Clair, Nora J. Mitchell (eds.), Routledge, 2015, 394 pp., £90.00, ISBN

Muusika / Aimar Ventsel

Index Scriptorium Estoniae

Ventsel, Aimar, 1970-

2005-01-01

Uutest heliplaatidest "Sandra Sillamaa", "The Concretes", The Juan Maclean "Less Than Human", Joni Mitchell "Songs Of A Prairie Girl", Pedegree "Growing Apart", Shelton San "EP", The Five Corners Quintet "Chasin' The Jazz Gone By", "The Story of Popular Black Music", Foo Fighters "In Your Honor", A "Teen Dance Ordinance"

Global view of remote sensing of rangelands: Evolution, applications, future pathways [Chapter 10

Science.gov (United States)

Matt Reeves; Robert A. Washington-Allen; Jay Angerer; E. Raymond Hunt; Ranjani Wasantha Kulawardhana; Lalit Kumar; Tatiana Loboda; Thomas Loveland; Graciela Metternicht; R. Douglas. Ramsey

2015-01-01

The term "rangeland" is rather nebulous, and there is no single definition of rangeland that is universally accepted by land managers, scientists, or international bodies (Lund, 2007; Reeves and Mitchell, 2011). Dozens and possibly hundreds (Lund, 2007) of definitions and ideologies exist because various stakeholders often have unique objectives...

U.S. Foreign Aid to the Palestinians

Science.gov (United States)

2009-04-29

article by five Members of Congress: Ileana Ros-Lehtinen, John A. Boehner, Eric Cantor , Mike Pence, and Thaddeus McCotter, “Ros-Lehtinen et al.: Cut...continued commitment to a two-state solution, and has appointed former Senator George Mitchell as its Special Envoy for Middle East Peace

Seer 2008 Session III Discussant Remarks

Science.gov (United States)

Medina, Jacquie

2009-01-01

Three research abstracts dealt with program outcomes and the factors that affect them. Morgan (2008) dealt with the potential influence of sensation-seeking personality traits on perceived risk and perceived competence in adventure experiences. Two abstracts by Bobilya, Akey, and Mitchell, Jr. (2008) and Austin, Martin, Mittelstaedt, Schanning,…

MS&G, When Worlds Collide: A Primer for Potential

Science.gov (United States)

2006-07-01

120 Broad Area Announcement ( BAA ) ................................................................ 121 Small...nor do they track or have the resources to monitor RFPs, BAAs , MURIs, SBIRs, STTRs, etc. Game companies find the maze of government contracting...in 1974, and 1 Beck , John, C. and Mitchell Wade. Got Game. Boston, MA: Harvard Business School

COMPARATIVE METABOLISM OF ARSENIC IN MICE AFTER A SINGLE OR REPEATED ORAL ADMINISTRATION OF ARSENATE

Science.gov (United States)

COMPARATIVE METABOLISM OF ARSENIC IN MICE AFTER A SINGLE OR REPEATED ORAL ADMINISTRATION OF ARSENATEMichael F. Hughes*1, Elaina M. Kenyon1, Brenda C. Edwards1, Carol T. Mitchell1, Luz Maria Del Razo2 and David J. Thomas11US EPA, ORD, NHEERL, ETD, PKB, Research Triangle Pa...

77 FR 63301 - Juneau Hydropower, Inc.; Notice of Draft License Application and Preliminary Draft Environmental...

Science.gov (United States)

2012-10-16

.... 791(a)-825(r). h. Applicant Contact: Duff Mitchell, Business Manager, Juneau Hydropower, Inc., P.O... information at the end of your comments. For assistance, please contact FERC Online Support at FERCOnline... access the document. For assistance, contact FERC Online Support. You may also register online at http...

75 FR 61474 - Juneau Hydropower, Inc.; Notice of Intent To File License Application, Filing of Pre-Application...

Science.gov (United States)

2010-10-05

... Hydropower, Inc.; Notice of Intent To File License Application, Filing of Pre-Application Document, and....: 13563-001. c. Dated Filed: July 28, 2010. d. Submitted By: Juneau Hydropower, Inc. e. Name of Project... Commission's regulations. h. Potential Applicant Contact: Duff W. Mitchell, Juneau Hydropower, Inc., P.O. Box...

76 FR 51022 - Juneau Hydropower, Inc.; Notice of Scoping Meeting and Site Visit and Soliciting Scoping Comments...

Science.gov (United States)

2011-08-17

... Hydropower, Inc.; Notice of Scoping Meeting and Site Visit and Soliciting Scoping Comments for an Applicant...: Alternative Licensing Process. b. Project No.: 13563-001. c. Applicant: Juneau Hydropower, Inc. d. Name of... Mitchell, Business Manager, Juneau Hydropower, Inc., P.O. Box 22775, Juneau, AK 99802; 907-789-2775, e...

France, Germany, Greece and the United Kingdom: An Analysis and Comparison of Budget Deficits and Defense Spending

Science.gov (United States)

2011-09-01

reduced to avoid inflation (Mitchell, 2005).” In the mid-1950s, Milton Friedman was arguing against Keynes’ theories on how to foster economic growth...economics edited by David H. Henderson. “ Friedman .” Retrieved from: http://www.econlib.org/library/Enc/bios/Friedman.html Library of Economics and

Prospective post traumatic stress disorder symptom trajectories in active duty and separated military personnel

Science.gov (United States)

2017-01-30

Center, San Diego, CA, USA b The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA c Teachers College, Columbia...Gordon Lynch; Denise Lovec- Jenkins ; Rayna Matsuno PhD; Danielle Mitchell; Kristin Motylinski; Anna Nagel MPH; Chiping Nieh PhD; Chris O’Malley MPH

A Working Ranch with an Effective Medusahead Management Program

Science.gov (United States)

Since 2005, rancher Ben McGough, owner of the Circle Bar Ranch in Mitchell, Oregon, has been working with USDA-ARS rangeland ecologist Roger Sheley to implement EBIPM on the ranch. More than 600 acres were infested with medusahead (Taeniatherum caput-medusae) when they began working together. We de...

29 CFR 776.29 - Instrumentalities and channels of interstate commerce.

Science.gov (United States)

2010-07-01

... OF 1938 Construction Industry Individual Employee Coverage in the Construction Industry § 776.29... v. Brown Engineering Co., ante. (d) Construction of new facilities. (1) In a case before the United... construction employees from being engaged in commerce. 32 Mitchell v. Vollmer, ante; Bennett. v. V. P. Loftis...

Mitchells Over the Pacific: The Dynamics of B-25 Innovation

Science.gov (United States)

2013-06-01

Tsili-Tsili. Initially, they flew in jeeps and trailers , but these smaller vehicles were too small for their needs. The two and a half ton trucks...this thesis, but are worthy of a Hollywood movie . His war for the US ended on 30 October 1944. He was on the ground, setting up the Tacloban...manufacturer, but also because it was receptive to innovative ideas. The corporation welcomed Pappy Gunn to their Inglewood plant, gave him access to

DIGITAL FLOOD INSURANCE RATE MAP DATABASE, MITCHELL COUNTY, IOWA, USA

Data.gov (United States)

Federal Emergency Management Agency, Department of Homeland Security — The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk Information And supporting data used to develop the risk data. The primary risk;...

Revisiting the Model of Creative Destruction: St. Jacobs, Ontario, a Decade Later

Science.gov (United States)

Mitchell, Clare J. A.; de Waal, Sarah B.

2009-01-01

Ten years ago, the model of creative destruction was developed to predict the fate of communities that base their development on the commodification of rural heritage (Mitchell, C.J.A., 1998. Entrepreneurialism, commodification and creative destruction: a model of post-modern community development. Journal of Rural Studies 14, 273-286). Its…

75 FR 78734 - R & M Sales Company, Inc.; Revocation of Registration

Science.gov (United States)

2010-12-16

... merchandise.'' Id. at 2. In his testimony, Mr. Mitchell stated that he could not recall ever having been... not make a contemporaneous record of either destruction. Id. Given the frailties of human memory, the... knows about typical purchasing patterns of stores serving similar markets, and if so, not sell to the...

"Malama I Ka 'Aina, Sustainability": Learning from Hawai'i's Displaced Place and Culture-Based Science Standard

Science.gov (United States)

Chinn, Pauline W. U.

2011-01-01

This response to Mitchell and Mueller's "A philosophical analysis of David Orr's theory of ecological literacy" comments on their critique of Orr's use of the phrase "ecological crisis" and what I perceive as their conflicting views of "crisis." I present my views on ecological crisis informed by standpoint theory and…

Computer Games Functioning as Motivation Stimulants

Science.gov (United States)

Lin, Grace Hui Chin; Tsai, Tony Kung Wan; Chien, Paul Shih Chieh

2011-01-01

Numerous scholars have recommended computer games can function as influential motivation stimulants of English learning, showing benefits as learning tools (Clarke and Dede, 2007; Dede, 2009; Klopfer and Squire, 2009; Liu and Chu, 2010; Mitchell, Dede & Dunleavy, 2009). This study aimed to further test and verify the above suggestion,…

Animated Asphalt

DEFF Research Database (Denmark)

Paldam, Camilla Skovbjerg

2015-01-01

to be understood? How does animation differ in different media? And in particular by focusing on and questioning the gender positions inherent in Mitchell’s theory. Animation has an erotic component of seduction and desire, and what pictures want, becomes for Mitchell, what women want. There is of course no simple...

AMAMM - All Media Are Mixed Media

DEFF Research Database (Denmark)

All Media Are Mixed Media Alle medier er blandingsmedier. Alle kunstarter er kompositte. Alle sanser er sammensatte. Alle medialiteter er miksede og mangfoldige. Alle er AMAMM. Denne påstand står centralt i ord-, billed- og medie-teoretikeren W.J.T. Mitchells forfatterskab. I hosstående bog tager...

Sharing Cookies: A Case Study

Science.gov (United States)

Salls, Jenny

2014-01-01

Rational number interpretations can include part-whole, measure, ratio, quotient, and operator. These are all subconstructs of partitioning (Barnett-Clarke et al. 2010; Behr et al. 1980; Clarke, Roche, and Mitchell 2008; Flores, Samson, and Yanik 2006). Each of these subconstructs uses different cognitive skills (Driscoll 1984), so it is important…

Public sector district health system: Is seven to ten minutes enough ...

African Journals Online (AJOL)

The development of a municipality based district health system has created an opportunity to practice family medicine in Mitchells Plain, but lack of clinical time to practice family medicine in the current setting raises questions about the quality and efficiency of primary health care in the municipality based district based ...

International Journal of Science and Technology(STECH) Bahir Dar ...

African Journals Online (AJOL)

Nneka Umera-Okeke

In many countries, the use of energy crops, including the use of Jatropha as feedstock ... assessment of ecological and economic information for identifying the .... 2012 on a 0.5 x 0.5-degree grid (Mitchell et al., 2003). ..... scale deployment of dedicated bioenergy crops in the UK." Renewable and. Sustainable. Energy.

Job Embeddedness May Hold the Key to the Retention of Novice Talent in Schools

Science.gov (United States)

Watson, Jennifer Moradian

2018-01-01

Teacher retention has been studied for decades, yet it has recently assumed renewed significance due to current teacher shortages. This study was designed to determine whether teachers' job embeddedness (JE) is related to turnover. JE is found in organizational literature (Mitchell, Holtom, Lee, Sablynski, & Erez, 2001) and has been a robust…

Strategic Studies Quarterly. Volume 8, Number 1, Spring 2014

Science.gov (United States)

2014-01-01

columnist in the IT trade press: “My fear is that when it comes to cyber war- fare there is no Billy Mitchell today in Washington,” http...from Michael Roth and Murat Sever, “The Kurdish Workers Party (PKK) as Criminal Syndicate : Funding Terrorism through Organized Crime,” Studies in

Small scale banana farmers' awareness level and adoption of ...

African Journals Online (AJOL)

Descriptive statistics and binary logit regression were employed for data analyses. The results show that although majority of the farmers (96.67%) were aware of and had access to improved banana varieties, only 15.83% of them adopted the use of improved planting materials. Gros mitchel, Cavendish and sweet bananas ...

Commentary: Mediation Analysis, Causal Process, and Cross-Sectional Data

Science.gov (United States)

Shrout, Patrick E.

2011-01-01

Maxwell, Cole, and Mitchell (2011) extended the work of Maxwell and Cole (2007), which raised important questions about whether mediation analyses based on cross-sectional data can shed light on longitudinal mediation process. The latest article considers longitudinal processes that can only be partially explained by an intervening variable, and…

Analysis of the Potential Impact of Additive Manufacturing on Army Logistics

Science.gov (United States)

2013-12-01

10 2. Dentistry ..............................................................................................11 3...our children , Zoe Zimmerman and Olivia and Mitchell Allen for their tremendous love, support, and encouragement in our writing of this MBA project...illustrates how AM can reduce the number of parts required for assembly, reduce weight, and improve performance. 2. Dentistry Johnston (2011) describes

Covert Shifts of Attention Function as an Implicit Aid to Insight

Science.gov (United States)

Thomas, Laura E.; Lleras, Alejandro

2009-01-01

Previous research shows that directed actions can unconsciously influence higher-order cognitive processing, helping learners to retain knowledge and guiding problem solvers to useful insights (e.g. Cook, S. W., Mitchell, Z., & Goldin-Meadow, S. (2008). Gesturing makes learning last. "Cognition," 106, 1047-1058; Thomas, L. E., & Lleras, A. (2007).…

Transitory Connections: The Reception and Rejection of Jean Piaget's Psychology in the Nursery School Movement in the 1920s and 1930s

Science.gov (United States)

Beatty, Barbara

2009-01-01

In 1927, nursery school educator Lucy Sprague Mitchell heralded Jean Piaget's psychology as of "outstanding interest" and wrote in "Progressive Education" that it should be of "immense service" to psychologists, teachers, and parents. In 1929, psychologist Lois Meek praised Piaget's research in the National Society for the Study of Education's…

78 FR 29379 - BLM Director's Response to the Appeal by the Governors of Utah and Wyoming of the BLM Assistant...

Science.gov (United States)

2013-05-20

... Shale and Tar Sands Resources on Lands Administered by the Bureau of Land Management (BLM) in Colorado... Shale and Tar Sands Resources on Lands Administered by the BLM in Colorado, Utah, and Wyoming, which..., Lakewood, CO 80215 or Mitchell Leverette, BLM Division Chief, Solid Minerals, 202-912-7113, ( [email protected

29 CFR 783.21 - Guiding principles for applying coverage and exemption provisions.

Science.gov (United States)

2010-07-01

... 29 Labor 3 2010-07-01 2010-07-01 false Guiding principles for applying coverage and exemption...'s Provisions § 783.21 Guiding principles for applying coverage and exemption provisions. It is clear... it applies (Walling v. General Industries Co., 330 U.S. 545; Mitchell v. Kentucky Finance Co., 359 U...

FOOD PREFERENCE DATA BY FAECAL ANALYSIS FOR AFRICAN ...

African Journals Online (AJOL)

MITCHELL, B. L. 1963. A first list of plants collected in the Kafue National Park. Puku, I: 75-191. ORR, D. 1. C. 1964. Grazing succession of game animals in Ngorongoro Crater. Tanganyika. Game Department, Dar es Salaam (typescript). ROBERTS, B. R. 1963. Ondersoek in die plantegroei van die Willem Pretorius Wildtuin.

A whole stand growth and yield system for young longleaf pine plantations in Southwest Georgia

Science.gov (United States)

John R. Brooks; Steven B. Jack

2006-01-01

A whole stand growth and yield system for planted longleaf pine (Pinus palustris Mill.) was developed from permanent plot data collected annually over an 8 year period. The dataset consists of 12 intensively-managed longleaf pine plantations that are located in Lee, Worth, Mitchell, and Baker counties in southwest Georgia. Stand survival, dominant...

The Shock and Vibration Digest, Volume 17, Number 12

Science.gov (United States)

1985-12-01

Alvisd, AN.T.................. 2280 Agraavl, .N .......... 2476, 2488 Alzheimer , .................. 2300 b.-’... Aguilar, J .................. 1289...1601 Clough, R.1............. 240, 1986 Chi, R.M .................... 2517 Coo, C.J .................... 1479 S Chia , C.Y ........................ 81...V.G ..................... 703 Mitchell, L.D ..... 50, 390, 855 Menq. Chia -Hsiang ............ 1600 .. ................ 1427, 1439, 1502 Menz, P

Chemical Constituents and Biological Properties of the Marine Soft ...

African Journals Online (AJOL)

1001/PKIMIA/811187); and the authors. (F.A.) and (Y.C.K.) are also grateful to. Universiti Sains Malaysia for the USM fellowship awards. . REFERENCES. 1. John Faulkner D. Marine natural products. Natural. Product Reports, 1999; 16(2): 155-198. 2. Bowden BF, Coll JC, Mitchell SJ. Studies of. Australian soft corals. XXI.

Archie Mafeje and the Pursuit of Endogeny: Against Alterity and ...

African Journals Online (AJOL)

seriane.camara

2009-05-14

May 14, 2009 ... The Kalela Dance (Mitchell 1956) and Epstein's Politics in an Urban African. Community (Epstein 1958), which both point to ..... (read 'tribes') and venomous beasts… As a matter of fact, I like black mambas lethal as they are and wish Africans could ..... land or watering hole. Significantly, Wolpe misread the ...

Prevention of Post-Radiotherapy Failure in Prostate Cancer by Vitamin D

Science.gov (United States)

2005-03-01

cur- 55. Mitchell MF, Hittelman WN, Hong WK et al. The natural history cumin , a chemo preventive agent, in patients with high-risk or of cervical...chromosomal DNA loops during oxidative stress . Genes & Dev 13:1553-1560. 16 1999 Chen AY, Choy H and Rothenberg ML. DNA topoisomerase I-targeting drugs as

Traditional African Religion: A Resource Unit.

Science.gov (United States)

Garland, William E.

This resource unit is based on research conducted by Lynn Mitchell and Ernest Valenzuela, experienced classroom teachers of African history and culture. The unit consists of an introduction by Mr. Garland and two major parts. Part I is an annotated bibliography of selected sources on various aspects of traditional African Religion useful in…

Microbiological Quality of Street-Vended Foods and Ready-To

African Journals Online (AJOL)

Dr Olaleye

sampled at point sale. PHLS, Communicable Disease and. Public Health, vol. 3, number 3. Sago, S.K., Little, C.L., Ward, L., Gillespie, I.A., Mitchel,. T.L. (2003). Microbiological study of ready-to-eat salad vegetables from retail establishments uncovers a national outbreak of salmonellosis. Journal of Food Protection 66(3):.

Too Many Choices?

Science.gov (United States)

Gardner, Howard

2002-01-01

Reviews two books, "The Other Boston Busing Story: What's Won and Lost across the Boundary Line" (Susan E. Eaton) and "Kingdom of Children: Culture and Controversy in the Homeschooling Movement" (Mitchell L. Stevens), which provide revealing perspectives on the experiences of those American families who veture beyond the traditional local school.…

A Study of Gaps in Attack Analysis

Science.gov (United States)

2016-10-12

Communications Security, CCS 2003, Washington, DC, USA, October 27-30, 2003, pages 281–289, 2003. [9] Adam Barth, Collin Jackson, and John C. Mitchell. Robust...Proceedings of the 2014 IEEE Symposium on Security and Privacy, SP ’14, pages 605–620, Washington, DC, USA, 2014. IEEE Computer Society. [42] Trevor Jim

The Benefits and Limitations of Formality

Science.gov (United States)

Kane, Michael

2008-01-01

Michael Kane comments on three articles in this issue: (1) "Is Psychometrics Pathological Science?" (Joel Mitchell); (2) "Latent Variable Theory" (Denny Borsboom); and (3) "Constructs, Concepts, and the Worlds of Possibility" (Keith Markus). He states that the common thread in these three articles is the goal of putting measurement practice on a…

Journal of Biosciences | Indian Academy of Sciences

Indian Academy of Sciences (India)

2006-05-06

May 6, 2006 ... Home; Journals; Journal of Biosciences; Volume 31; Issue 2. Kenneth Raper, Elisha Mitchell and Dictyostelium. Eugene R Katz. Perspectives Volume 31 Issue 2 June 2006 pp 195-200. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/jbsc/031/02/0195-0200 ...

Selling the brand inside.

Science.gov (United States)

Mitchell, Colin

2002-01-01

When you think of marketing, chances are your mind goes right to your customers--how can you persuade more people to buy whatever it is you sell? But there's another "market" that's equally important: your employees. Author Colin Mitchell argues that executives by and large ignore this critical internal audience when developing and executing branding campaigns. As a result, employees end up undermining the expectations set by the company's advertising--either because they don't understand what the ads have promised or because they don't believe in the brand and feel disengaged or, worse, hostile toward the company. Mitchell offers three principles for executing internal branding campaigns--techniques executives can use to make sure employees understand, embrace, and "live" the brand vision companies are selling to the public. First, he says, companies need to market to employees at times when the company is experiencing a fundamental challenge or change, times when employees are seeking direction and are relatively receptive to new initiatives. Second, companies must link their internal and external marketing campaigns; employees should hear the same messages that are being sent to the market-place. And third, internal branding campaigns should bring the brand alive for employees, creating an emotional connection to the company that transcends any one experience. Internal campaigns should introduce and explain the brand messages in new and attention-grabbing ways and then reinforce those messages by weaving them into the fabric of the company. It is a fact of business, writes Mitchell, that if employees do not care about or understand their company's brands, they will ultimately weaken their organizations. It's up to top executives, he says, to give them a reason to care.

Effects of climate change on rangeland vegetation in the Northern Rockies Region [Chapter 7

Science.gov (United States)

Matt C. Reeves; Mary E. Manning; Jeff P. DiBenedetto; Kyle A. Palmquist; William K. Lauenroth; John B. Bradford; Daniel R. Schlaepfer

2018-01-01

Rangelands are dominated by grass, forb, or shrub species, but are usually not modified by using agronomic improvements such as fertilization or irrigation (Lund 2007; Reeves and Mitchell 2011) as these lands would normally be considered pastures. Rangeland includes grassland, shrubland, and desert ecosystems, alpine areas, and some woodlands (box 7.1). This chapter...

Emerging Beliefs Frustrate Ecological Literacy and Meaning-Making for Students

Science.gov (United States)

Fleischer, Stuart

2011-01-01

In their treatise, Mitchell and Mueller extend David Orr's notions of ecological literacy (2005) to include biophilia (Wilson "1984") and ecojustice (Mueller "2009"). In his writings, David Orr claims that the US is in an "ecological crisis" and that this stems from a crisis of education. The authors outline Orr's theory of ecological literacy as…

75 FR 29296 - Proposed Flood Elevation Determinations

Science.gov (United States)

2010-05-25

... Tanana An area north of the Tanana +431 +432 Fairbanks-North Star River and Chena River. River levee and... of Old Airport Road and Mitchell Expressway to the west. An area north of the Tanana None +446 River...)....... Approximately 460 feet None +1004 Unincorporated Areas upstream of West Charles of Fayette County. Street. City...

76 FR 33974 - Changes to the Schedule of Operations Regulations

Science.gov (United States)

2011-06-10

... cited approvingly to an older Supreme Court decision, Steiner v. Mitchell, 350 U.S. 247 (1956), in which... clothes in Steiner clearly qualify as non-unique gear. On the other hand, a comment submitted by an... example, in Steiner, the Supreme Court considered whether changing into and out of old work clothes at a...

The Rangeland Vegetation Simulator: A user-driven system for quantifying production, succession, disturbance and fuels in non-forest environments

Science.gov (United States)

Matt Reeves; Leonardo Frid

2016-01-01

Rangeland landscapes occupy roughly 662 million acres in the coterminous U.S. (Reeves and Mitchell 2011) and their vegetation responds quickly to climate and management, with high relative growth rates and inter-annual variability. Current national decision support systems in the U.S. such as the Interagency Fuels Treatment Decision Support System (IFT-DSS) require...

75 FR 81998 - Notice of Performance Review Board Membership

Science.gov (United States)

2010-12-29

..., Thomas N. Mr. Leikach, Kalmen I. Mr. Lewis, David H. RDML Ligler, Frances S. Dr. Maguire, Margaret M. Ms... McManamon, James P. RDML McNair, John W. Mr. Meadows, Linda J. Ms. Mitchell, Stephen E. Mr. Montgomery, John..., Office of Civilian Human Resources, telephone 202-685-6341. Dated: December 22, 2010. H.E. Higgins...

EFFECT OF DOSE ON THE EXCRETION AND METABOLISM OF MONOMETHYLARSONIC ACID IN THE MOUSE

Science.gov (United States)

EFFECT OF DOSE ON THE EXCRETION AND METABOLISM OF MONOMETHYLARSONIC ACID IN THE MOUSEM F Hughes1, V Devesa2, B C Edwards1, C T Mitchell1, E M Kenyon1, and D J Thomas1. 1US EPA, ORD, NHEERL, ETD, Research Triangle Park, NC; 2UNC-CH, CEMALB, Chapel Hill, NCMonomethylar...

Peace and violence in contempo-· rary Africa: a possi~ility of. inter ...

African Journals Online (AJOL)

beings are many and vary in customs, beliefs and outlook". Now, the question is: What is cultural relativism? Following in the footsteps of. Mitchell (1979), Otakpor (1993:60) defines cultural relativism as the doctrine that "a culture can only be understood in its own terms, and that standards from other cultures cannot (my ...

pour le trimestre qui a pris fin le 30 juin 2013

International Development Research Centre (IDRC) Digital Library (Canada)

Office 2004 Test Drive User

30 juin 2013 ... Conseil des gouverneurs du CRDI. Le mandat des gouverneurs suivants a pris fin le 27 mai 2013 : Margaret Biggs, d'Ottawa, en Ontario;. Faith Mitchell, de Washington, aux États-Unis; Elizabeth Parr-Johnston, de Chester Basin, en Nouvelle-Écosse; Gordon Shirley, de Kingston, en Jamaïque; l'honorable ...

Speedminton: Using the Tactical Games Model in Secondary Physical Education

Science.gov (United States)

Oh, Hyun-Ju; Bullard, Susan; Hovatter, Rhonda

2011-01-01

Teaching and learning of sport and sports-related games dominates the curriculum in most secondary physical education programs in America. For many secondary school students, playing games can be exciting and lead to a lifetime of participation in sport-related activities. Using the Tactical Games Model (TGM) (Mitchell et al., 2006) to teach the…

29 CFR 784.21 - Guiding principles for applying coverage and exemption provisions.

Science.gov (United States)

2010-07-01

... 29 Labor 3 2010-07-01 2010-07-01 false Guiding principles for applying coverage and exemption... Application of Coverage and Exemptions Provisions of the Act § 784.21 Guiding principles for applying coverage... (Walling v. General Industries Co., 330 U.S. 545; Mitchell v. Kentucky Finance Co., 359 U.S. 290: Tobin v...

Apple biological and physiological disorders in the orchard and in postharvest according to production system Distúrbios biológicos e fisiológicos no pomar e na pós-colheita de maçãs em função do sistema de produção

Directory of Open Access Journals (Sweden)

Carlos Roberto Martins

2013-03-01

Full Text Available The study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and degeneration ('Gala', and bitter pit ('Fuji' and 'Catarina'. The incidence of postharvest rot was not influenced by apple production system.O objetivo deste trabalho foi avaliar a ocorrência de distúrbios biológicos e fisiológicos, tanto em nível de campo como em pós-colheita, de maçãs 'Gala', 'Fuji' e 'Catarina', produzidas em pomares conduzidos em quatro sistemas de produção: convencional, transição convencional-orgânico, integrado e orgânico. As maçãs foram avaliadas quanto à presença de danos ocasionados por distúrbios biológicos e fisiológicos no pomar e em pós-colheita. Os maiores danos foram atribuídos às pragas, principalmente à Anastrepha fraterculus em sistema orgânico e à Grapholita molesta em sistema de transição convencional-orgânico. As maçãs produzidas em sistema orgânico tiveram maiores danos em pós-colheita ocasionados por distúrbios fisiológicos do que as dos demais sistemas de produção. Nas frutas produzidas em sistema orgânico, os danos, em sua maioria foram com degenerescência e depressão lenticelar para a cv. Gala, e bitter pit para as cvs. Fuji e Catarina. A incidência de podridões pós-colheita não foi influenciada pelo sistema de

Biological Monitoring and Abatement Program for the Oak Ridge K-25 Site

International Nuclear Information System (INIS)

Kszos, L.A.; Adams, S.M.; Ashwood, T.L.; Blaylock, B.G.; Greeley, M.S.; Loar, J.M.; Peterson, M.J.; Ryon, M.G.; Smith, J.G.; Southworth, G.R.; Shoemaker, B.A.; Hinzman, R.L.

1993-02-01

A proposed Biological Monitoring and Abatement Program (BMAP) for the Oak Ridge K-25 Site was prepared in December 1992 as required by the renewed National Pollutant Discharge Elimination System permit that was issued on October 1, 1992. The proposed BMAP consists of four tasks that reflect different but complementary approaches to evaluating the effects of K-25 Site effluents on the ecological integrity of Mitchell Branch, Poplar Creek, and the Poplar Creek embayment of the Clinch River. These tasks include (1) ambient toxicity monitoring, (2) bioaccumulation monitoring, (3) assessment of fish health, and (4) instream monitoring of biological communities. This overall BMAP plan combines established protocols with current biological monitoring techniques to assess environmental compliance and quantify ecological recovery. The BMAP will also determine whether the effluent limits established for the K-25 Site protect the designated use of the receiving streams (Mitchell Branch, Poplar Creek, and Clinch River) for growth and propagation of fish and other aquatic life. Results obtained from this biological monitoring program will also be used to document the ecological effects (and effectiveness) of remedial actions

Biological Monitoring and Abatement Program for the Oak Ridge K-25 Site

Energy Technology Data Exchange (ETDEWEB)

Kszos, L. A.; Adams, S. M.; Ashwood, T. L.; Blaylock, B. G.; Greeley, M. S.; Loar, J. M.; Peterson, M. J.; Ryon, M. G.; Smith, J. G.; Southworth, G. R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Environmental Sciences Div.; Shoemaker, B. A. [Oak Ridge K-25 Site, TN (United States); Hinzman, R. L. [Oak Ridge Research Inst., TN (United States)

1993-02-01

A proposed Biological Monitoring and Abatement Program (BMAP) for the Oak Ridge K-25 Site was prepared in December 1992 as required by the renewed National Pollutant Discharge Elimination System permit that was issued on October 1, 1992. The proposed BMAP consists of four tasks that reflect different but complementary approaches to evaluating the effects of K-25 Site effluents on the ecological integrity of Mitchell Branch, Poplar Creek, and the Poplar Creek embayment of the Clinch River. These tasks include (1) ambient toxicity monitoring, (2) bioaccumulation monitoring, (3) assessment of fish health, and (4) instream monitoring of biological communities. This overall BMAP plan combines established protocols with current biological monitoring techniques to assess environmental compliance and quantify ecological recovery. The BMAP will also determine whether the effluent limits established for the K-25 Site protect the designated use of the receiving streams (Mitchell Branch, Poplar Creek, and Clinch River) for growth and propagation of fish and other aquatic life. Results obtained from this biological monitoring program will also be used to document the ecological effects (and effectiveness) of remedial actions.

Dioxobridged complexes of molybdenum (IV) and tungsten (IV) with ...

Indian Academy of Sciences (India)

Unknown

Acknowledgement. We thank Rhone Poulenc, Paris, France for supplying MPM and M/s Bayer A G,. Leverkusen, Germany for providing PCPD and TFPH as gift samples. References. 1. Hewitt E J 1959 Biol. Rev. 34 333. 2. Kay A and Mitchell P C H 1970 J. Chem. Soc. A 2421. 3. Russell Melby L 1969 Inorg. Chem. 8 1539.

The biological value of proteins in mixed grass hays

NARCIS (Netherlands)

El-Samman, S.

1961-01-01

Biological values of protein in grasshays cut in two years and at different times of the year were estimated in 9 trials with groups of 2 to 4 male Texel lambs, by different methods: 1) the method of Thomas and Mitchell: a) assuming a value of 3.438 for metabolic faecal protein or b) using values

Improvements in medium range weather forecasting system of India

Indian Academy of Sciences (India)

system is based on the latest Grid Statistical Interpolation (GSI) scheme and it has the provision to use most of .... ified Simplified-Arakawa Scheme (SAS) (Han and. Pan 2010). ..... Kim Y-J and Arakawa A 1995 Improvement of orographic gravity wave ... Yang F, Mitchell K, Hou Y-T, Dai Y, Deng X, Wang Z and. Liang X-Z ...

Anisotropic Dislocation Line Energy and Crack Tip Dislocation Nucleation in (alpha)RDX

Science.gov (United States)

2013-11-01

Mitchell, R.L.; Knap, J.; Chung, P.W., Role of molecule flexibility on the nucleation of dislocations in molecular crystals. App. Phys. Lett. 2013...uniform stres , under-estimate of stressses (Get from S) Br=0; for i=1:3 Br=Br+sum(S(i,1:3)); end Br=1/Br; % Shear Modulus Gr=4/15*(S(1,1

29 CFR 776.23 - Employment in the construction industry.

Science.gov (United States)

2010-07-01

... work for or on behalf of a firm which is engaged in interstate commerce or in the production of goods for such commerce. 8 8 Mitchell v. Joyce Agency, 348 U.S. 945, affirming 110 F. Supp. 918; Fleming v... employee is engaged in both covered and non-covered work during the workweek he is entitled to the benefits...

Sustainability in the UK construction minerals industry

OpenAIRE

Mitchell, Clive

2015-01-01

Sustainability in the UK construction minerals industry Clive Mitchell, Industrial Minerals Specialist, British Geological Survey, Nottingham, UK Email: Sustainability is not just about environmental protection it also concerns biodiversity, community relations, competence, employment, geodiversity, health and safety, resource efficiency, restoration and stakeholder accountability. The UK construction minerals industry aims to supply essential materials in a sustainabl...

Mustad pilved. White label : Bombillaz Raggamasta. Kuula / DJ Pickney Tiger

Index Scriptorium Estoniae

DJ Pickney Tiger, pseud., 1970-

2007-01-01

Rockansambli Tharaphita heliplaadist "Iidsetel sünkjatel radadel". DJ-mix'ist. Heliplaatidest: LCD Soundsystem "Sound of Silver", " A Tribute To Joni Mitchell", "Black Rebel Motorcycle Club "Baby 81", "The Tragic Treasury", Knob "Thir3een ways to go", Timbaland Presents "Shock Value", Skazo "Gde Respect?", Neverstore "Sevenhundred Sundays", Poiskõsõ "Tii päält iist!"

American Practical Navigator. An Epitome of Navigation. Volume 1

Science.gov (United States)

1977-01-01

Survey and Mr. Anthony S. Basile of this Center for their oontributions to the nautical chart chapter; Mr. Peter A. Mitchell, Naval Ocear.o- graphic Office...angle SB.f, which is exterior to the triangle ABA !, and hence equal to the sum of angles SALM and AM1O. A’M Ix-. 426 SEXTANT ALTITUDE CORRECTIONS

El Instituto Español de Entomología (CSIC y la multitud molesta

Directory of Open Access Journals (Sweden)

Martín Albaladejo, Carolina

2016-06-01

Full Text Available The Spanish Institute of Entomology (IEE was founded in 1941, direct heir of the former Entomology Section of the National Museum of Natural Science. Among the tasks assigned to the new Institute was to provide “to the interested centers the data resulting from the work that he made with insects with economic and public health significance”. Gonzalo Ceballos was appointed Director; his proposals, alongside the work of the institutions responsible for forest management, turned up the IEE into one of the driving forces of many initiatives in this field. His management also provided an excellent opportunity to meet the objectives for which the Institute was conceived. Three forms of participation were distinguished on the study, management and control of forest pests. On one hand, the involvement of the IEE in resolving queries from individuals, companies and institutions; second, the development of scientific projects supported by the Juan de la Cierva Board of Trustees and, finally, collaborations with different departments belonging of the Ministry of Agriculture. It is stated that, the lack of specialized personnel assigned to the IEE pests’ management was a serious drawback to continue the initiatives of Ceballos be developed beyond management.En 1941 se creó el Instituto Español de Entomología (IEE, heredero directo de la antigua Sección de Entomología del Museo Nacional de Ciencias Naturales. Entre las labores encomendadas al nuevo establecimiento estaba la de aportar «a los Centros de aplicación los datos resultantes de los trabajos que en él se efectúen con los insectos, de interés económico y sanitario». Gonzalo Ceballos fue nombrado Director y sus propuestas, junto al trabajo de las instituciones encargadas de la gestión forestal, hicieron del IEE uno de los centros motores de muchas iniciativas en este campo. Su dirección supuso, además, una excelente oportunidad para cumplir los objetivos con los que fue concebido el Instituto. En este artículo se distinguen tres formas de participación respecto al estudio, gestión y control de plagas forestales. Por un lado, la implicación del IEE en la resolución de consultas de particulares, empresas e instituciones; en segundo lugar, el desarrollo de proyectos subvencionados por el Patronato Juan de la Cierva y, finalmente, las colaboraciones con diferentes cuerpos dependientes del Ministerio de Agricultura. Se constata que la falta de personal especializado en plagas adscrito al IEE supuso un grave inconveniente para que las iniciativas de Ceballos se desarrollaran más allá de su gestión.

Kuidas alliansid taas edukaks muuta / Mitchell P Koza, Arie Y Lewin

Index Scriptorium Estoniae

Koza, Mitchell P

2002-01-01

Alliansside strateegiast lähtuvalt jagunevad need kasutus- (exploitation) ja uurimisallianssideks (exploration alliances). Autorid kirjeldavad 3 liiki strateegilisi alliansse - ärilised, õppimis- ja hübriidalliansid ning nende põhimõttelisi erinevusi

Pinyon/juniper woodlands [Chapter 4

Science.gov (United States)

Robin J. Tausch; Sharon Hood

2007-01-01

Pinyon-juniper woodlands occur in 10 states and cover large areas in many of them. These woodlands can be dominated by several species of pinyon pine (Pinus spp. L.) and juniper (Juniperus spp. L.) (Lanner 1975; Mitchell and Roberts 1999; West 1999a). A considerable amount of information is available on the expansion of the woodlands that has occurred over large parts...

A Summary of the 42-year Follow up of Vietnam Prisoners of War: Mortality and Morbidity Findings

Science.gov (United States)

2017-12-20

lower risk of psychiatric illness and better long-term physical and psychological health than repatriates who are more pessimistic...follow-up at the Robert E. Mitchell Center for POW Studies. Repatriate health at the time of repatriation for those military personnel who...associated with diagnoses aggregated within International Classification of Diseases (ICD) categories (National Center for Health Statistics, 2010) have

DMPD: Critical role of toll-like receptors and nucleotide oligomerisation domain inthe regulation of health and disease. [Dynamic Macrophage Pathway CSML Database

Lifescience Database Archive (English)

Full Text Available and nucleotide oligomerisation domain inthe regulation of health and disease. Pu...bmedID 17535871 Title Critical role of toll-like receptors and nucleotide oligomerisation domain inthe regulation of health...17535871 Critical role of toll-like receptors and nucleotide oligomerisation domain inthe regulation of heal...th and disease. Mitchell JA, Paul-Clark MJ, Clarke GW, McMaster SK, Cartwright N. J

The relationship between vertical cup‑disc ratio and body mass ...

African Journals Online (AJOL)

2013-02-16

Feb 16, 2013 ... Varma R, Tielsch JM, Quigley HA, Hilton SC, Katz J, Spaeth GL, et al. Race, age, gender, and refractive error‑related differences in the normal disc. Arch. Ophthalmol 1994;112:1068‑78. 10. Healey PR, Mitchell P, Smith W, Wang JJ. The influence of age and intraocular pressure on the optic cup in a normal ...

Smart and intelligent sensor payload project

Science.gov (United States)

2009-01-01

Engineers working on the smart and intelligent sensor payload project include (l to r): Ed Conley (NASA), Mark Mitchell (Jacobs Technology), Luke Richards (NASA), Robert Drackett (Jacobs Technology), Mark Turowski (Jacobs Technology) , Richard Franzl (seated, Jacobs Technology), Greg McVay (Jacobs Technology), Brianne Guillot (Jacobs Technology), Jon Morris (Jacobs Technology), Stephen Rawls (NASA), John Schmalzel (NASA) and Andrew Bracey (NASA).

A Validity Review of the Color Company Competition at the United States Naval Academy

Science.gov (United States)

2006-06-01

organization’s employees by implementing effective and efficient interventions (Chyung, 2005, p. 23).” These professional researchers have...An organization’s or subgroup’s ‘memoirs’ can imbue attached 14 individuals with improved senses of relatedness and belongingness (i.e. go...compensation and incentives can ensure that employees feel valued and sufficiently motivated (Nalbantian & Schotter, 1997; Mitchell, 1982; Chyung, 2005

FTIR Analyses of Hypervelocity Impact Deposits: DebriSat Tests

Science.gov (United States)

2015-03-27

DEPT SPACE MATERIALS LABORATORY ENGINEERING & TECHNOLOGY GROUP Shant Kenderian, DIRECTOR DEPT MATERIALS PROCESSING DEPT SPACE MATERIALS LABORATORY...ENGINEERING & TECHNOLOGY GROUP © The Aerospace Corporation, 2015. All trademarks, service marks, and trade names are the property of their respective owners...mitchell.nolan.ctr@us.af.mil SECURITY CLASSIFICATION UNCLASSIFIED Brian Roebuck AEDC brian.roebuck@us.af.mil Norman Fitz-Coy University of Florida nfc

Essays on the real effects of exchange rate-based stabilizations

OpenAIRE

Krois, Bettina

2004-01-01

Die lateinamerikanischen Währungskrisen lenkten erst kürzlich wieder das Augenmerk auf die Gefahren wechselkursbasierter Stabilisierungen (WKBS). Dies sind Inflationsstabilisierungsprogramme, die den nominalen Wechselkurs als vorrangiges geldpolitisches Instrument einsetzen. Die vorliegende Dissertation dokumentiert die Wirkung der Stabilisierungen und präsentiert Erklärungsmodelle für deren stilisierte Fakten. Das erste Kapitel untersucht in Burns-Mitchell-Diagrammen typische reale und mone...

Monitoramento de problemas com plantas aquáticas e caracterização da qualidade de água e sedimento na UHE Mogi-Guaçu Monitoring problems with aquatic plants and characterization of water and sediment quality at UHE Mogi-Guaçu

Directory of Open Access Journals (Sweden)

A.L. Cavenaghi

2005-06-01

Full Text Available Este trabalho foi realizado na UHE Mogi-Guaçu, pertencente à AES Tietê S.A. Levantamento de plantas aquáticas e amostragem de água e sedimento foram realizados em julho de 2001 (estação seca, novembro de 2001 (início da estação chuvosa e março de 2002 (final da estação chuvosa. Foram feitas 846 análises de água e 516 de sedimento, avaliando-se 47 características da água e 41 do sedimento. Espécies marginais e flutuantes foram as principais infestantes do reservatório, merecendo destaque as espécies Brachiaria subquadripara, Eichornia crassipes, Polygonum lapathifolium, Panicum rivulare, Salvinia auriculata e Pistia stratiotes. A turbidez e conseqüente baixa transmissão de luz pela coluna d'água impossibilitaram o desenvolvimento de plantas submersas. Teores de fósforo e nitrogênio encontrados tanto na água quanto no sedimento mostraram-se suficientes para suportar o crescimento de plantas aquáticas. A ocorrência de plantas marginais e flutuantes estava associada ao intenso processo de sedimentação observado no reservatório.This research was carried out at the Mogi Guaçu reservoir owned by AES Tiete. Assessment of aquatic plants and water and sediment sampling were carried out in July 2001 (dry season, November 2001 (start of rainy season and March 2002 (end of rainy season. A total of 846 water and 516 sediment analyses were performed, with 47 water and 41 sediment characteristics being evaluated. Marginal and floating species were the main weeds in the reservoir, the most outstanding being Brachiaria subquadripara, Eichornia crassipes, Polygonum lapathifolium, Panicum rivulare, Salvinia auriculata and Pistia stratiotes. Turbidity and low light transmission by water column made the growth of the submerged plants impossible. Phosphorus and nitrogen concentration both in the water and sediment was adequate to support aquatic plant growth. The occurrence of marginal and floating plants was associated with the intense

Salinity and pH effects on floating and emergent macrophytes in a constructed wetland.

Science.gov (United States)

Hadad, H R; Mufarrege, M M; Di Luca, G A; Maine, M A

2017-04-01

Salvinia herzogii, Pistia stratiotes and Eichhornia crassipes (floating species) were the dominant macrophytes in a constructed wetland (CW) over the first years of operation. Later, the emergent Typha domingensis displaced the floating species, becoming dominant. The industrial effluent treated at this CW showed high pH and salinity. The aim of this work was to study the tolerance of floating species and T. domingensis exposed to different pH and salinity treatments. Treatments at pH 8, 9, 10 and 11 and salinities of 2,000; 3,000; 4,000; 6,000; and 8,000 mg L -1 were performed. Floating macrophytes were unable to tolerate the studied pH and salinity ranges, while T. domingensis tolerated higher pH and salinity values. Many industrial effluents commonly show high pH and salinity. T. domingensis demonstrated to be a suitable macrophyte to treat this type of effluents.

A gateway to the Gulf

International Nuclear Information System (INIS)

Crawford, A.P.

1992-01-01

One day in February 1991, a man strolling along a bucolic stretch of rural real estate in Alabama heard the call of what he later discovered to be a red-cockaded woodpecker. A rare event, this would ordinarily have been a pleasant surprise. When officials at the Federal Energy Regulatory Commission (FERC) in Washington, D.C., got word of the red's siting, they took notice. And when Dan Mitchell and Jamie Craddock at United Gas Pipe Line Co. in Houston found out, they just shook their heads --- again. The red-cockaded woodpecker is but one of the uniquely named, federally protected species native to South Alabama that Mitchell and Craddock had to constantly concern themselves with as they attempted to ensure the environmental and regulatory compliance of United's recently completed 28-mile Gateway gas pipeline near gas-rich Mobile Bay. Until May 1, when United put Gateway into service, it had taken more than six years to plan and construct the most environmentally correct route for the pipeline. This paper discusses the largest portion of Gateway's route which is piney forest or agricultural land with the wetlands area prevalent in the southern end of the route

Quantitative inheritance of crop timing traits in interspecific hybrid Petunia populations and interactions with crop quality parameters.

Science.gov (United States)

Warner, Ryan M; Walworth, Aaron E

2010-01-01

The leaf unfolding rate (i.e., development rate) and the number of nodes forming prior to floral initiation are 2 factors determining production times for floriculture crops. Wild relative species of the cultivated petunia (Petunia x hybrida Vilm.) that exhibited faster development rates than modern cultivars and may therefore be useful genetic sources to develop cultivars with decreased production time were identified. Three interspecific F(2) families, Petunia exserta Stehmann x P. axillaris (Lam.) Britton et al., P. x hybrida 'Mitchell' x P. axillaris, and P. axillaris x P. integrifolia (Hook.) Schinz & Thell. all exhibited transgressive segregation for development rate and node number below the first flower. Development rate and time to flower segregated independently in all families. Leaf number below the first flower was positively correlated with leaf unfolding rate in all families except P. axillaris x P. integrifolia. Time to flower was positively correlated with flower bud number in the P. x hybrida 'Mitchell' x P. axillaris and P. axillaris x P. integrifolia families only. Based on these results, wild Petunia germplasm should be useful for developing petunia cultivars with reduced crop production times, but some negative effects on crop quality parameters may need to be overcome.

The Agency of Action: Kinetic Culture and American Policy in the Wake of 9/11

Science.gov (United States)

2013-06-01

time and space with similar proportions to that of the mid-century airplane, the great “civilizing” force of Billy Mitchell’s day.2 The means of war...shift in the ways of war—victory through information dominance.3 2 William “ Billy ” Mitchell...former Assistant Secretary of Defense for Policy and Plans and Special Advisor to the Secretary of Defense, political scientist Graham Allison

The Importance of Why: An Intelligence Approach for a Multi-Polar World

Science.gov (United States)

2016-04-04

December 27, 2015). 12. 2 Jupiter Scientific, “Definitions of Important Terms in Chaos Theory ,” Jupiter Scientific website, http...Important Terms in Chaos Theory .” Linearizing a system is approximating a nonlinear system through the application of linear system model. 25...Complexity Theory to Anticipate Strategic Surprise,” 24. 16 M. Mitchell Waldrop, Complexity: The Emerging Science at the Edge of Order and Chaos (New

Design charts for arbitrarily pivoted, liquid-lubricated flat-sector-pad thrust bearing

Science.gov (United States)

Etsion, I.

1977-01-01

A flat, sector-shaped geometry for a liquid-lubricated thrust bearing is analyzed considering both the pitch and roll of the pad. Results are presented in design charts that enable a direct approach to the design of point- and line-pivoted, tilting pad bearings. A comparison is made with the Mitchell bearing approximation and it is found that this approximation always overestimates load capacity.

State-of-the-Art Assessment -- Shelter Habitability.

Science.gov (United States)

1982-09-01

sewage disposal systems, chlorination of public water supplies, pasteurization of milk , general sanitary precautions in the food processing industry, etc...be ruled out. A recent article in the New England Journal of Medicine examined the threat of communicable diseases to survivors of a nuclear war and...Low temperature, which causes increased mucus secretion and favors transmission [109]. Mitchell [83] and Johnston et al. [89] concluded that

Proceedings of the International Wire and Cable Symposium (29th) Held at Cherry Hill, New Jersey on November 18, 19 and 20, 1980.

Science.gov (United States)

1980-11-01

Comunicaciones , S.A. Elizabeth, NJ Zaragoza, SPAIN Ilmercable Corporation Cabot Corporation El Dorado, Arkansas Boston, MA American Hoechst Corporation...FILLING RELATIONSHIP TO TRANSMISSION, V. Abadia, J. Z. COMPOUND, D. M. Mitchell, R. Sabia, Bell Lab- Avalos, Cables de Comunicaciones , S. A., Zaragoza...RESISTANCE PROBLEMS AND ITS RELATIONSHIP TO TRANSMISSION V. Abadia and J.Z. Avalos CABLES DE COMUNICACIONES , S,A, ABSTRACT TABLE I A good number of

The Shock and Vibration Bulletin. Part 4. Prediction and Experimental Techniques, Isolation and Damping

Science.gov (United States)

1973-06-01

D. 0. Smallwood , Sandia Laboratories, Albuquerque, New Mexico and A. F. Witte, Kaman Sciences, Colorado Springs, Colorado fi TRANSIENT VIBRATION...TEST TECHNIQUE USING LEAST FAVORABLE RESPONSES D. O. Smallwood , Sandia Laboratories, Albuquerque, New Mexico PAPERS APPEARING IN PART 2 Structural...Dynamic Systems, Measure- ments and Control, March 1971. 12. Favour, John D., Maclom C. Mitchell, and Norman L. Olson, "Transient Test Techniques for

Operate to Know: An Operational and Intelligence for the Operational Level of War

Science.gov (United States)

2014-06-13

operationalizing induction, redefining the role of the commander as well as rebalancing the functions of operations and intelligence. Complexity...the Task: A Memoir (New York: Portfolio Hardcover, 2013), 149-154. 68 Mitchell, Complexity: A Guided Tour, 169-185. 47 a mix of both passive...Wehrmacht evolved as a result of a rebalancing and harmonizing of physical-military capabilities, a new combined arms system is emerging where intelligence

An Integrated Research Program for the Modeling, Analysis and Control of Aerospace Systems

Science.gov (United States)

1992-03-03

Fabiano, Jr. - Brown University Mitchell Feigenbaum - Rockefeller University Elena Fernandez - Institudo de Desarrollo Techologico, para la Industria...system. The system runs under DEC Ultrix; we have installed the GKS graphics system and language compilers (FORTRAN and C). The DELIGHT.MIMO software ...which links a sophisticated non-smooth optimization package to some linear system software , is on the system. The package was kindly furnished by

Emerging beliefs frustrate ecological literacy and meaning-making for students

Science.gov (United States)

Fleischer, Stuart

2011-03-01

In their treatise, Mitchell and Mueller extend David Orr's notions of ecological literacy (2005) to include biophilia (Wilson 1984) and ecojustice (Mueller 2009). In his writings, David Orr claims that the US is in an "ecological crisis" and that this stems from a crisis of education. The authors outline Orr's theory of ecological literacy as a lens to understand Earth's ecology in view of long-term survival. In their philosophical analysis of Orr's theory, Mitchell and Mueller argue that we move beyond the "shock doctrine" perspective of environmental crisis. By extending Orr's concept of ecological literacy to include biophilia and ecojustice, and by recognizing the importance of experience-in-learning, the authors envision science education as a means to incorporate values and morals within a sustainable ideology of educational reform. Through this forum, I reflect on the doxastic logic and certain moral and social epistemological concepts that may subsequently impact student understanding of ecojustice, biophilia, and moral education. In addition, I assert the need to examine myriad complexities of assisting learners to become ecologically literate at the conceptual and procedural level (Bybee in Achieving scientific literacy: from purposes to practices, Heinemann Educational Books, Portsmouth, 1997), including what Kegan (In over our heads: the mental demands of modern life, Harvard University Press, Cambridge, 1994) refers to as "Third Order" and "Fourth Order" thinking: notions of meaning-construction or meaning-organizational capacity to understand good stewardship of the Earth's environment. Learners who are still in the process of developing reflective and metacognitive skills "cannot have internal conversation about what is actual versus what is possible, because no `self' is yet organized that can put these two categories together" (p. 34). Mitchell and Mueller indicate that middle school learners should undergo a transformation in order to reflect

Zora’s Politics: A Brief Introduction

Directory of Open Access Journals (Sweden)

Ernest Julius Mitchell II

2013-09-01

Full Text Available In his introduction to reading Zora Neale Hurston’s politics, Mitchell argues that contemporary scholarship has misread Hurston in significant ways, distorting Hurston’s work and reputation to serve contesting political agendas; thus, in recent years, she has been associated with “a bewildering array of affiliations: republican, libertarian, radical democrat, reactionary conservative, black cultural nationalist, anti-authoritarian feminist, and woman-hating protofascist.” Recuperating Hurston from this impossible political melee of labels, Mitchell argues, requires a careful reading of Hurston’s work dating from her earliest pieces in the late 1920s, as well as surveying her many yet to be published manuscripts and letters; it requires recognition of the transnational and comparative lens through which she reported on political maneuvers and military histories, as well as reading not only her strong criticisms but also her silences, ironic phrasings, and nuanced critiques in her writings on global colonial enterprises. Mitchell’s introduction to the two Hurston essays here reprinted, “I Saw Negro Votes Peddled” (1950 and “Why the Negro Won’t Buy Communism” (1951—courtesy of the American Legion Magazine—is set in the larger frame of his assertion that Hurston’s work should be read with a deep appreciation of her staunch anticolonialism. Tracing her political philosophy through her views of how race and religion are used to valorize an international culture of violence that serves imperialistic and colonial ends, Mitchell takes his reader on a tour of Hurston’s transnational commentary—from the US occupation of Haiti, to the Spanish and British on the Florida peninsula; from Communist Russia and China, to election practices in the US—to set the stage for our encounters with these rarely read Hurston essays. Reading Mitchell’s “Zora’s Politics: A Brief Introduction” provides a firm foundation for a more

Suppression of oriental fruit moth (Grapholita molesta, Lepidoptera: Tortricidae) populations using the sterile insect technique

International Nuclear Information System (INIS)

Genchev, N.

2002-01-01

The Oriental fruit moth (OFM) is a major insect pest of peaches in Bulgaria. Its control usually requires several insecticide treatments per season. This, however, gives rise to serious toxic residue problems. A program for suppression of OFM populations involving the use of sterile-insect technique (SIT) has been developed as an alternative to the chemical methods for OFM. Relevant information regarding laboratory rearing, radiation and basic biology are presented here. Expected effects of some release programs are modelled using appropriate mathematical simulations. Results obtained in a small field experiment showed high efficacy of a program integrating F 1 male sterility technique and classic SIT. (author)

Controle de tortricídeos em macieira com duas formulações de Bacillus thuringiensis var. Kustaki em Fraiburgo-SC Tortricid moth control in apple with two formulation of Bacillus thuringiensis var. Kustaki in Fraiburgo-SC

Directory of Open Access Journals (Sweden)

Lino Bittencourt Monteiro

2010-06-01

Full Text Available Grapholita molesta e Bonagota cranaodes são duas importantes pragas de pomares de macieira controlada por inseticidas. O objetivo deste estudo foi testar duas formulações de Bacillus thuringiensis var. kurstaki (Btk para o controle desses tortricídeos. Parcelas de macieira 'Fuji' foram pulverizadas com Dipel PM e Dipel SC, nas concentrações de 100 ml por100 L de calda. A eficiência do Btk foi comparada com os inseticidas tebufenozide (Mimic 240 SC - 90 ml por 100 L e clorpyrifos (Lorsban 480 BR - 150 ml por 100 L. Duas vezes por semana, eram avaliadas as capturas de pragas em armadilha do tipo Delta. As avaliações de danos nos frutos foram realizadas antes e na colheita, sendo classificados os frutos em função do agrupamento em cachopa e a sua localização na planta. Os tratamentos com Btk tiveram mais danos do que os químicos. Houve uma tendência de maiores danos na parte interna, próximo ao tronco das macieiras e o agrupamento dos frutos não influenciou na presença de danos. Ambas as formulações de Dipel foram eficientes quando comparados com Mimic e Lorsban.Grapholita molesta and Bonagota cranaodes are two key pests in apple orchards controlled by insecticides. The objective of the present study was to test two formulas of Bacillus thuringiensis var. kurstaki to control these tortricid moths. Plot of 'Fuji' apple trees were sprayed with Dipel PM and Dipel SC, at a concentration of 100ml por 100 l liquid. The efficiency of Btk was compared with the insecticides tebuphenozide (Mimic 240 SC - 90 ml por 100 L and chlorpyrifos (Lorsban 480 BR - 150 ml por 100 L. The capture of pests in a Delta-type trap was assessed twice a week. Fruit damage was evaluated pre- and post- harvest and the fruit were classified by branch-end clustering and location on the plant. The treatments with B. thuringiensis were more damaged than those with chemical treatments. There tended to be more damage in the internal part, close to the apple tree

American Naval Thinking in the Post-Cold War Era: The U.S. Navy and the Emergence of a Maritime Strategy, 1989-2007

Science.gov (United States)

2013-06-01

reoccurrence of global depression and world war by establishing regimes soon after the Second World War that addressed the factors that were thought to have...Princeton, NJ: Princeton University, 1986), 164. 8 John B. Hattendorf, John R. Wadleigh, and B. Mitchell Simpson, Sailors and Scholars: The Centennial ...Simpson. Sailors and Scholars: The Centennial History of the United States Naval War College. Newport, RI: U.S. Naval War College, 1984. 387

Fire Service Emergency Management Handbook

Science.gov (United States)

1985-01-01

Adapted from Formulating Public Policy in Emergency Management Course Book and ResourceMRanual for Public OTTicials, ILMA Emergency Management Institute...659-2447 (202) 785-2757 Christian Reformed World Relief Presbyterian Church in U.S. Committee General Assemby Mission Board C. Neil Molenaar 341 Ponce...Healer, Mind as Slayer. New York: Delta Books , 1977. 86B:6 B-45 4) Mitchell, J.T., & Resnik, HLP: Emergency Response to Crisis: A Crisis Intervention

Injuries and Illnesses of Vietnam War POWs Revisited: I. Navy Risk Factors

Science.gov (United States)

2016-01-05

protein-calorie deficiency nor vitamin deficiency, both traditional scourges of POWs, were a significant problem among POWs held in North Vietnam...TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Robert E . Mitchell Center for Prisoner of War Studies,220 Hovey...Injury/Poisoning, Infectious, Nervous and Special Senses, Skin and Musculoskeletal (in descending order). The prevalence of any diagnosis in each of

Examining Regionalization Efforts to Develop Lessons Learned and Consideration for Department of Defense Medical Facilities

Science.gov (United States)

2017-03-23

outsourcing effects of military maintenance depots. They found maintenance depots were not working at full capacity and in some cases privatizing the...need to look at the impact of the consolidated departments and if a common goal can be achieved. Funding differences can also affect regionalization...therefore be out of service until fixed. Mitchell & Pasch [5] added that there could be a customer service impact consolidating local facilities into

A Hybrid Approach to Composite Damage and Failure Analysis Combining Synergistic Damage Mechanics and Peridynamics

Science.gov (United States)

2017-12-31

Composite Damage and Failure Analysis Combinin Synergistic Damage Mechanics and Peridynamics 6. AUTHOR(S) 5b. GRANT NUMBER N00014-16-1-2173 5c...NUMBER 8. PERFORMING ORGANIZATION REPORT NUMBER Texas A&M Engineering Experiment Station (TEES) 400 Harvey Mitchell Parkway, Suite 300 College...1.3 related to Synergistic Damage Mechanics and Tasks 2.2 and 2.4 related to Peridynamics, as described in the project proposal. The activities

Development of Personalized Cancer Therapy for Men with Advanced Prostate Cancer

Science.gov (United States)

2015-10-01

MD Anderson. Fusion analysis of the first 19 cases demonstrates 10 cases are ETS fusion positive, while 9 cases are ETS fusion negative. Notably...Foundation Grants Officer: Jane Zuber, Director, Contracts & Grants, Texas A&M Univ. System 400 Harvey Mitchell Pkwy South, Suite 300 College Station, TX...prostate cancer PDXs for expression of targets of interest to company. 18 ARAUJO, John None BROOM, Bradley ACTIVE Bioinformatics Gift ( Weinstein

Rainwater Harvesting for Military Installations -The Time is Now

Science.gov (United States)

2010-06-01

Alternate Water Sources US Army Corps of Engineers® Engineer Research and Development Center - Water Reuse - Desalination - Produced Water...RAINWATER HARVESTING - Ground Water Recharge - Graywater Reuse - Sewer Mining Other Water Use/Alternate Water Sources Options What can be done to increase...WATER NO TOME El AGUA .. US Army Corps of Engineers® Engineer Research and Development Center Mitchell Physics RWH 386,800 GPY AC 1,058,300 GPY

Steven Hawking to visit Texas A&M in spring

CERN Multimedia

Xavier, D

2002-01-01

Stephen Hawking will visit Texas A&M University from Feb. 24 to March 21 2003 to participate in the inaugural meeting of the George P. and Cynthia W. Mitchell Institute for Fundamental Physics. This institute will bring several of the world's top physicists to A&M for a month-long exploration of the latest ideas on topics ranging from superstrings to M-theory and supergravity (1/2 page).

Mechanisms of Coagulation Abnormalities and Trauma

Science.gov (United States)

2011-07-01

Medicine & Dentistry , Queen Mary University of London, London, UK 3 and Department of Anesthesia , University of Alabama at Birmingham, Birmingham, AL 4... local hypoperfusion and fibrin clot formation. Other groups have confirmed these findings in the gut, liver, and lung. Furthermore, skin biopsies from...Brohi,‡ Daniel Frith,‡ Jean-François Pittet,*† and Mitchell J. Cohen* The Departments of *Surgery and † Anesthesia , University of California, San

Workshop on AI (Artificial Intelligence) and Simulation (2nd) Held in Seattle, Washington on 14 July 1987,

Science.gov (United States)

1987-07-01

vast difference between how the user conceptualizes a problem and how the problem will ultimately be represented in the simulation model. By providing...imposes a DEMOS-like framwork on the simulation model, forcing its description in terms of entities, resources, queues and events. A monitoring system...R.E.Stepp, Learning from Observation: Conceptual Clustering, in Michalski,R.S., J.G.Carbonell and T.M.Mitchell(eds), Machine Learning, Tioga

Research Laboratory of Electronics Progress Report Number 134

Science.gov (United States)

1991-12-31

N. Paine Undergraduate Students John E. Barbarian, Charles G. Freeman, James A. Grimm, Matthew J. Marjanovic , David Mitchell, Wan Morshidi, Lee-Peng...Brian A. Rubin Darlene J. Ford Huiying Li Rohit Sakhuja Eliza Fulton Michael H. Lim Alexis P. Silitch Curtis A. Gabrielson Matthew J. Marjanovic David...Sharon Y. 291 LBlanc, Cindy 277 Manufacturing Processes 232 Leader, Harry 336 Marjanovic , Matthew J. 163, 174 Lee, David S. 33 Martin, Alexander 163

A One-System Theory Which is Not Propositional.

Science.gov (United States)

Witnauer, James E; Urcelay, Gonzalo P; Miller, Ralph R

2009-04-01

We argue that the propositional and link-based approaches to human contingency learning represent different levels of analysis because propositional reasoning requires a basis, which is plausibly provided by a link-based architecture. Moreover, in their attempt to compare two general classes of models (link-based and propositional), Mitchell et al. have referred to only two generic models and ignore the large variety of different models within each class.

Bibliography of Scientific Publications 1995-2010

Science.gov (United States)

2010-09-29

Space, and Environmental Medicine, 72(3), 241. Sausen, K., Clark, J., Ambrose, M., Mitchell, R., Stiney, M., & Bower, E. (2001). Gait and balance in...responses to the 9D5 underwater egress trainer [Abstract]. Aviation, Space, and Environmental Medicine, 74(4), 383. O’Donnell, A. M., Morgan, C. A...microsim part-task trainer as an adjunct to primary naval flight instruction [Abstract]. Aviation, Space, and Environmental Medicine, 76(3), 226

Modified Bayesian Kriging for Noisy Response Problems for Reliability Analysis

Science.gov (United States)

2015-01-01

52242, USA nicholas-gaul@uiowa.edu Mary Kathryn Cowles Department of Statistics & Actuarial Science College of Liberal Arts and Sciences , The...Forrester, A. I. J., & Keane, A. J. (2009). Recent advances in surrogate-based optimization. Progress in Aerospace Sciences , 45(1–3), 50-79. doi...Wiley. [27] Sacks, J., Welch, W. J., Toby J. Mitchell, & Wynn, H. P. (1989). Design and analysis of computer experiments. Statistical Science , 4

Toward an Interpersonal Paradigm for Superior-Subordinate Communication.

Science.gov (United States)

1983-11-01

Super- vision in a Large Industrial Organization." Disserta- tion Abstracts International, 34 (1974), 4460A (Kent State). Farace , Richard V.; Peter R...see, among others, Haney, 1976; Farace , Monge, and Russell, 1977; Mitchell, 1970; McMurry, n.d.; Harriman, 1974), and a problem for which no dearth of...for subordinates a positive 31 correlation exists between trust and their supervisors’ per- ceived willingness to listen. Farace , Monge, and Russell

Roots and Causes That Created the PKK Terrorist Organization

Science.gov (United States)

2013-09-01

Kurdish Workers Party (PKK) as Criminal Syndicate : Funding Terrorism through Organized Crime, A Case Study,” Studies in Conflict & Terrorism 30, no. 10...and outside of the group. Rival organizations and individuals were put on the spot. Even columnists , criticizing Apocu movement, were targeted. A...Oslo’da Neler Oldu?” Aksam Gazetesi, April 24, 2013. Roth, Mitchel P. and Murat Sever. 2007. “The Kurdish Workers Party (PKK) as Criminal Syndicate

Air Force Institute of Technology Research Report 2008

Science.gov (United States)

2009-05-01

Air Force Student, Summer 2008, Naval Postgraduate School, Monterey, CA. FIORINO, STEVEN, T., Lt Col Bartell, R.J., Krizo, M.J., Fiorino, S.T...Tomography. AFIT/GAP/ENP/08-M04. Faculty Advisor: Dr. William F. Bailey. Sponsor: AFRL/RZ. HAUSMAN , ALEXANDER R., Direct Initiation through...Sponsor: 314 OG/CC. MITCHELL, LAWRENCE W.S., Fee for Service Air Refueling: A Summary Market Analysis. AFIT/IMO/ENS/08-12. Faculty Advisor: Dr

Persistence of Gulf War oil versus intertidal morphology and sediments - one year later

International Nuclear Information System (INIS)

Montello, T.M.; Hayes, M.O.; Michel, J.; Al-Momen, A.H.; Al-Mansi, A.M.; Aurand, D.V.

1993-01-01

A study of the persistence of oil in the intertidal habitats of the Saudi Arabian coast was carried out one year after the Gulf war spill in conjunction with the National Oceanic and Atmospheric Administration ship Mt. Mitchell's ROPME Sea Cruise. A total of 10 kilometers of transects were surveyed at 20 stations, representing heavily oiled sheltered beaches, tidal flats, algal mats, halophyte saltmarshes, and mangroves at the heads of bays

CSR and Entrepreneurship: Drivers for Social Responsibility in German Business Start-Ups

OpenAIRE

Weiss, Stephanie

2013-01-01

The relationship between entrepreneurship and ethics is complex and multifaceted (Fisscher, et al., 2005). When a firm comes into existence, it enters relationships with various stakeholders (Mitchell & Cohen, 2006). Other than merely managing different stakeholder claims, entrepreneurs are forming relationships with stakeholders from private and professional networks, who provide the knowledge and resources needed to found and establish a business (Dimov, 2007). As a result, attention to st...

Makers of the United States Air Force,

Science.gov (United States)

1987-01-01

gratitude and thanks to the Aerospace Educational Foun- dation for its strong support and major financial contribution toward the successful research...several times when the Air Force-and its predecessors-was rescued from financial or organizational 2 INTRODUCTION: MEN WITH A MISSION doldrums by a poor...job included a willingness to keep a skeptical eye on the shenanigans of Assistant Chief of Air Service Billy Mitchell and other air zealots. Knerr

Categories and Commutative Algebra

CERN Document Server

Salmon, P

2011-01-01

L. Badescu: Sur certaines singularites des varietes algebriques.- D.A. Buchsbaum: Homological and commutative algebra.- S. Greco: Anelli Henseliani.- C. Lair: Morphismes et structures algebriques.- B.A. Mitchell: Introduction to category theory and homological algebra.- R. Rivet: Anneaux de series formelles et anneaux henseliens.- P. Salmon: Applicazioni della K-teoria all'algebra commutativa.- M. Tierney: Axiomatic sheaf theory: some constructions and applications.- C.B. Winters: An elementary lecture on algebraic spaces.

Archeology and Native American Religion at the Leon River Medicine Wheel.

Science.gov (United States)

1996-02-01

varieties of plants. The eastern side of including pecan (Carya illinoinensis), slippery elm the facility (East Range) is typified by dense (Ulmus rubra...southern part of the Cross Timbers and Prairies texana), and cedar elm (Ulmus crassifolia). A Vegetation Area. Alired and Mitchell (1955) term variety of...south (West Fort americana), American elm (Ulmus americana), Hood) are generally more open, ranging from TRC MARIAH ASSOCIATES, INC. (662-21

Development of Flame Resistant Combat Uniform Fabrics Made from Long Staple Wool and Aramid Blend Yarn

Science.gov (United States)

2013-04-15

Kentwool recombed the wool top ( wool is first combed during the production of wool top); a second combing process is an optional step sometimes used in...RESISTANT COMBAT UNIFORM FABRICS MADE FROM LONG STAPLE WOOL AND ARAMID BLEND YARN by Parvez Mehta* Mitchell Driggers* and Carole...SUBTITLE DEVELOPMENT OF FLAME RESISTANT COMBAT UNIFORM FABRICS MADE FROM LONG STAPLE WOOL AND ARAMID BLEND YARN 5a. CONTRACT NUMBER W911QY-11

Forecasting Irish Inflation: A Composite Leading Indicator

OpenAIRE

Quinn, Terry; Mawdsley, Andrew

1996-01-01

This paper presents the results of research into the construction of a composite leading indicator of the Irish rate of inflation, as measured by the annual percentage change in the Consumer Price Index (CPI). It follows the work of Fagan and Fell (1994) who applied the business cycle leading indicator methodology, initially established by Mitchell and Burns (1938,1946), to construct a composite leading indicator of the Irish business cycle.

Impulsive Action, Psychological Stress, and Behavioral Sensitization to Nicotine in a Rat Model of lmpulsivity

Science.gov (United States)

2010-06-30

Bodily changes in pain, hunger , fear, and rage. New York: Harper and Row. Cannon, W. B. (1932). The wisdom ofthe body. New York: Norton. Camp, D. M...Report (Vol. 58, pp. 1227-1232). Clark L., Cools R., & Robbins T.W. (2004). The neuropsychology of ventral prefrontal cortex: Decision-making and...R, McFarland, B., Hitzemann, RJ., & Mitchell, S.H. (2006). Neuropsychological function and delay discounting in methamphetamine-dependent

Eesti algatatud maksurevolutsioon pühib üle maailma / Daniel J. Mitchell

Index Scriptorium Estoniae

Mitchell, Daniel J.

2005-01-01

Heritage Fondi analüütik hindab Eesti osa teiste riikide maksupoliitika mõjutajana, samas leiab ta, et maksurevolutsioon on olnud nii edukas ja maksukonkurents nii suur, et selle käimalükkaja - Eesti - alandab oma maksumäära, et teistega sammu pidada

Mitchell Receives 2013 Ronald Greeley Early Career Award in Planetary Science: Response

Science.gov (United States)

Mitchell, Jonathan L.

2014-07-01

I am honored to receive this award in memory of Ron Greeley. Although I did not have the opportunity to know him, I had the pleasure of getting to know his wife, Cynthia, at a luncheon prior to the special awards session at the AGU Fall Meeting. Cynthia is an intelligent and elegant southern woman with a confident gaze. She spoke fondly of Ron and of her sincere respect for his work ethic and dedication to planetary science. What most impressed me, though, was the respect Ron showed to her and the kids by always "giving them the evenings"; no matter how busy things got, Ron always kept his evenings open for Cynthia. This clearly meant the world to her. As a family man, I can only hope that my wife and kids will speak so kindly of me many years from now. I would like to dedicate this award to them in gratitude for their seemingly unconditional love and support.

Comparison of Optical and Multi-Waveband Variations of Selected Gamma-ray Bright Blazars in 2012

Science.gov (United States)

Schultz, Benjamin; Jorstad, S. G.; Marscher, A. P.; Williamson, K. E.; Walker, G. E.

2013-01-01

We present multi-wavelength observations of several gamma-ray bright blazars. We combine optical data obtained with the 17-inch CCD telescope of Maria Mitchell Observatory with space- and ground-based observations carried out with a variety of instruments. These include a number of other optical telescopes, the Fermi Gamma-Ray Space Telescope at photon energies of 0.1-200 GeV, and the Swift satellite at 0.3-10 keV plus optical and UV wavelengths. Three of the observed blazars proved to be particularly active - BL Lac, Mrk501, and CTA-102. BL Lac was of special interest, displaying remarkable activity in multiple wavelengths during this observation period, including the optical, in which it underwent its largest observed flare in a number of years. In addition, CTA-102 has recently undergone an unprecedented multi-wavelength outburst. We cross-correlate the variations in the different wavebands in an effort to guide theoretical interpretations of the optical and high-energy emission from blazars. This project was supported by NSF/REU grant AST-0851892 and the Nantucket Maria Mitchell Association. The research at Boston University was supported in part by NSF grant AST-0907893 and by NASA through Fermi grant NNX11AQ03G.

Air-Ground Integration: Preliminary Results from the Coalition Attack Guidance Experiment (The International C2 Journal Volume 5, Number 3, 2011)

Science.gov (United States)

2011-01-01

Mitchell (DNK), Royal Danish Defence College Sandeep Mulgund (USA), The MITRE Corporation Mark Nissen (USA), Naval Postgraduate School Mink Spaans (NLD...Research Management 25(1): 28-33. Cash, J.I., Jr., F.W. McFarlan, J.L. McKenney, and M.R. Vitale. 1988. Corporate Information Systems Management 2nd...Between Structure and Technology. In Handbook of Organizational Design vol. 2: 3-38, eds. P. C. Nystrom and W. H. Starbuck . New York, NY: Oxford

Selection of Dogs for Land Mine and Booby Trap Detection Training. Volume I

Science.gov (United States)

1976-09-01

Sarcoptes scabier, the 12 causes of demodectic and sarcoptic mange , respectively, may be speci- fically diagnosed by microscopic examination of skin scrapings...8217 UNCLASSIFIED 10 - SELECTION OF DOGS FOR LAND MINE AND BOOBY TRAP DETECTION TRAINING (U) FINAL TECHNICAL REPORT VOLUME i by Daniel S. Mitchell...1 ...... I " SELECTION OF DOGS k- FOR LAND MINE AND OOlBY TRAP DETECTION TRAINING * Contract -3C p t DAA1WC.LYA by , /ODaniel S

Scratch

Directory of Open Access Journals (Sweden)

Razvan BOLOGA

2006-01-01

Full Text Available The article is a brief introduction to the highly innovative product SCRATCH developed at MIT Media Lab by Professor Mitchell Resnick and his team. The product is intended to be used by young children with ages between 10 and 19 years in order to understand the programming basics. The key advantage of SCRATCH is the fact that it does not require any mathematical knowledge in order to use it.

A Pilot Study: Evaluation of the Effects of Treatment with 0.75% Topical Capsaicin in Patients with Reflex Sympathetic Dystrophy Using Three Phase Bone Scintigraphy

Science.gov (United States)

1991-01-28

years topical capsaicin has recieved growing attention in the treatment of specific pain syndromes. Derived primarily from neonatal and adult rat...dorsal roots19󈧚, cornea19, and coeliac ganglion23 . Similar, and generally parallel, depletions have been shown for cholecystokinin.16-23 A review this...stimulation. Therapy of causalgia has its roots in S. Wier Mitchell’s civil war experience beginning at the United States Army Hospital for Diseases on

The impact of packaging design on health product perceptions

OpenAIRE

Riley, Debra; Martins da Silva, Peter; Behr, Sabrina

2015-01-01

Packaging design has been studied in a variety of contexts but findings remain inconsistent, particularly on the impact of individual elements (e.g. Mitchell & Papvassiliou, 1999; Becker, Rompay, Schifferstein and Galetzka, 2011; Siloyoi & Speece, 2007). Although several studies have found visual cues (picture, typography, colour) to be the most impactful on consumer attention and attitude (e.g. Folkes & Matta, 2004; Silayoi & Speece, 2004), most studies have focused on other elements such as...

Prevalence and natural history of ALK positive non-small-cell lung cancer and the clinical impact of targeted therapy with ALK inhibitors

OpenAIRE

Chia, Puey Ling; John,Thomas; Dobrovic,Alex; Mitchell,Paul

2014-01-01

Puey Ling Chia,1 Paul Mitchell,1 Alexander Dobrovic,2–4 Thomas John1,2,4 1Department of Medical Oncology, Olivia-Newton John Cancer and Wellness Centre, Victoria, Australia; 2Ludwig Institute for Cancer Research, Austin Health, Victoria, Australia; 3Department of Pathology, University of Melbourne, Victoria, Australia; 4School of Cancer Medicine, La Trobe University, Victoria, Australia Abstract: Improved understanding of molecular drivers of carcinogenesis has led to significant p...

Factors Impacting Intra-District Collaboration: A Field Study in a Midwest Police Department

Science.gov (United States)

2018-03-01

Delinquency 50, no. 4 (2004): 516–541; Neil Brewer, Patricia Mitchell, and Nathan Weber, “Gender Role, Organizational Status, and Conflict Management...attendance from both the patrol and detective divisions. During weekly COMPSTAT meetings, P6 explains, the staff goes over statistics and “the...and White Police Officers.” Crime & Delinquency 50, no. 4 (2004): 516–541 Thibault, Edward A., Lawrence M. Lynch, R. Bruce McBride, and Gregory Walsh

Cognitive Changes in Presymptomatic Parkinson’s Disease

Science.gov (United States)

2006-09-01

Society, 8(2), 203) Hillier, A, Beversdorf, D.Q., Raymer , A., Williamson, D.J.G., & Heilman, K.M. Abnormal emotional word ratings in parkinson’s...disease. (submitted). Raymer A, Beversdorf D, Mitchell A, Williamson D, Heilman KM. Emotion word ratings in individuals with Parkinson’s Disease...Rhodes, Robert ; Mielke, Jeannine B. ; Riestra, Alonso ; Womack, Kyle ; Okun, Michael S. ; Reeves, Dennis L. ; Crosson, Bruce ; 1, 2 1, 2 1 1 1 3 1

VizieR Online Data Catalog: The MASSIVE survey. VI. Warm ionized gas. (Pandya+, 2017)

Science.gov (United States)

Pandya, V.; Greene, J. E.; Ma, C.-P.; Veale, M.; Ene, I.; Davis, T. A.; Blakeslee, J. P.; Goulding, A. D.; McConnell, N. J.; Nyland, K.; Thomas, J.

2017-10-01

This paper is based on integral-field spectra obtained with the Mitchell Spectrograph (formerly VIRUS-P) on the 2.7m Harlan J. Smith Telescope at McDonald Observatory. The spectra cover the wavelength range from ~3500Å to ~5800Å. We generally have three dithered pointings for a total of 738 spectra per galaxy. See the MASSIVE survey description in Paper I: Ma+, 2014, J/ApJ/795/158 (1 data file).

Evaluation and Analysis of a Multi-Band Transceiver for Next Generation Telemetry Applications

Science.gov (United States)

2014-06-01

UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Morgan State University (INC) 1700 E Cold Spring LN, Baltimore MD 21251-0002 8...Eng., Samuel Berhanu, and Willie L. Thompson II, D.Eng Morgan State University , The Clarence M. Mitchell Jr. School of Engineering Center of... DDC ) BAND SELECTION Kintex FPGA DIGITAL RADIO RECEIVER DIGITAL RADIO TRANSMITTER ADC Fs < 225 MSPS Fs = 400 MHz RF BW = 36 MHz FREQ TRANSLATION VIA

Les ombres noires de Saint Domingue: The Impact of Black Women on Gender and Racial Boundaries in Eighteenth- and Nineteenth-Century France

OpenAIRE

Mitchell, Robin

2010-01-01

AbstractLes ombres noires de Saint Domingue: The Impact of Black Women on Gender & Racial Boundaries in Eighteenth- and Nineteenth-Century FrancebyRobin MitchellDoctor of Philosophy in HistoryUniversity of California, BerkeleyProfessor Tyler Stovall, ChairThere were few black women on French soil in the nineteenth century, yet images of and discussions about them are found in political, artistic, scientific, and various social milieus. This paradox is explored for its symbolic and nationali...

Dust settles at Dalrymple Bay Terminal

International Nuclear Information System (INIS)

2006-01-01

With an annual loading capacity approaching 60Mt, Queensland's Dalrymple Bay Coal Terminal is one of the largest and most efficient coal export facilities in Australia. Each day, DBCT handles thousands of tonnes of coal transported directly from the Bowen Basin via an electrified railway and bound, ultimately, for out-loading onto bulk carrier ships. It is little wonder then that dust control and an accurate knowledge of coal moisture content are key priorities for DBCT. In early 2004, these priorities, together with an undertaking to the Co-ordinator General to reduce dust emissions, saw DBCT investigate the CSIRO-developed Low Frequency Microwave (LFM) Moisture Analyser. The LFM Analyser is specifically designed to deliver accurate, online measurements of moisture in continuous on-conveyor applications. At this stage, it was already enjoying significant success in the iron ore market with BHP Billiton Iron Ore investing in multiple units as part of its moisture control strategy for the Marra Mamba ore-types. The LFM Analysers, now being commercialised by spin-out company Intalysis, were commissioned in July 2004. Babcock and Brown Infrastructure (BBI), the company that holds the long-term leasehold of DBCT, was heavily involved in the analyser's commissioning. BBI's electrical supervisor Doug Mitchell says the analyser offers the means for DBCT to meet the environmental conditions of the terminal license while at the same time enabling it to meet its individual contract obligations with the terminal customers. 'This basically involves ensuring the moisture content for each coal type does not exceed that which has been agreed upon with terminal customer,' Mitchell says. DBCT has installed two analysers on the in loading conveyors, each about 100m from the coal discharge hoppers. They are fitted to steel cord belts at a nominal speed of around 6m/sec that carry the coal to either 4250tph or 5500tph yard stacking machines, depending on the string selected for

Avaliação da sensibilidade de diversas espécies de plantas daninhas aquáticas ao carfentrazone-ethyl, em ambiente controlado Assessment of sensitivity of several aquatic weeds to carfentrazone-ethyl under controlled environment

Directory of Open Access Journals (Sweden)

L.L. Foloni

2005-06-01

Full Text Available Plantas aquáticas, especialmente macrófitas, tornam-se sério problema em hidrelétricas, afetando a múltipla utilização dos corpos d'água, incluindo produção de peixes e atividades de pesca, perdas d'água por evapotranspiração, esportes aquáticos, canoagem, irrigação e produção de energia nas usinas hidrelétricas. Com o objetivo de analisar o potencial de uso do carfentrazone-ethyl no controle das principais plantas daninhas aquáticas no Brasil, foi instalado um experimento em vasos com água. Utilizaram-se os seguintes tratamentos herbicidas (g i.a. ha-1: carfentrazone-ethyl a 15, 30 e 60; glyphosate a 4.536; 2,4-D a 4.690; imazapyr a 1.250; e uma testemunha sem herbicida. Esses tratamentos foram testados nas seguintes espécies: Eichhornia crassipes, Salvinia auriculata, Pistia stratiotes, Myriophyllum aquaticum, Brachiaria arrecta, Hydrocotyle umbellata, Typha sp. e Echinochloa polystachya. As avaliações foram efetuadas aos 7, 14, 21 e 28 dias após os tratamentos. Os resultados mostraram que o carfentrazone-ethyl foi eficiente no controle de E. crassipes (maior dose e P. stratiotes (duas maiores doses, com efeito supressivo sobre S. auriculata. Foi observado que nas outras plantas daninhas estudadas não houve eficiência de controle.Aquatic weeds, especially macrophytes, are a serious problem in hydroelectric plant systems, affecting the multiple use of water, such as fish production and fishing activities, water losses by evapotranspiration, aquatic sports, boating, irrigation and hydroelectric power production. An experiment using boxes filled with water was carried out to analyze the potential use of carfentrazone-ethyl in the control of the main aquatic weeds in Brazil. The following herbicide treatments (g i.a. ha-1 were used: carfentrazone-ethyl at 15, 30 and 60; glyphosate at 4,536; 2,4D at 4,690; imazapyr at 1,250, and no herbicide. These treatments were tested on the species: Eichhornia crassipes, Salvinia

Gum in apricot (Prunus armeniaca L. shoots induced by methyl jasmonate

Directory of Open Access Journals (Sweden)

Marian Saniewski

2013-12-01

Full Text Available It has been well known that some fungal pathogens (Monilia laxa, M. fructigena, Cytospora cincta, larvae of Grapholita molesta and plant hormone - ethylene, induce gummosis in apricot shoots. Methyl jasmonate (JA-Me was also found to induce gummosis in apricot shoots as well as biotic and abiotic factors mentioned above. In order to know the mode of action of JA-Me on gum induction and/or formation, chemical composition of polysaccharides (after hydrolysis in gums of apricot shoots induced by JA-Me compared with those by ethephon and their mixture, and naturally occurring ones was studied, resulted in the succesful identification of monosaccharides, and the similarity of a composition consisting of xylose, arabinose and galactose at molar ratio 1:10:14, respectively. These results suggest that beside different inducers of gum in apricot the mechanism of polysaccharides biosynthesis of gums is the same or similar. The physiological role for JA-Me on gum induction and/or formation in apricot shoots, and other species are also discussed.

Neurofisiología y funciones mentales

Directory of Open Access Journals (Sweden)

Carlos Moreno B.

1994-04-01

Full Text Available El editor de la revista Nature, al comentar una revisión sobre el estado de las neurociencias, el 15 de octubre de 1981, afirmo: "En cierto sentido, las neurociencias están en el filo de la navaja de la nueva biología. Enriquecidas por la información novedosa y fortalecidas con un desfile vertiginoso de nuevas técnicas, están comprometidas con una de las más molestas y antiguas preguntas: ¿Cómo lleva a cabo sus funciones la representación física de la mente, llamada cerebro? Pero en otro sentido, las neurociencias incluyen algunas de las investigaciones más fastidiosas. EI continuo progreso de la técnica, tan veloz como podamos imaginarlo, es con frecuencia una fuente de frustración y desilusión para los investigadores. La que está de moda este año con las neuronas, puede ser el descarte del próximo... En general, las neurociencias están en el negocio de fabricar ladrillos sin barro.

Gamma irradiation as a phytosanitary treatment for fresh pome fruits produced in Patagonia

Science.gov (United States)

Pérez, J.; Lires, C.; Horak, C.; Pawlak, E.; Docters, A.; Kairiyama, E.

2009-07-01

Argentina produces 1.8 million tons/year of apples ( Malus domestica L.) and pears ( Pyrus communis L.) in the Patagonia region. Cydia pomonella, codling moth, and Grapholita molesta, Oriental fruit moth, ( Lepidoptera: Tortricidae) are quarantine pests in pome fruits. Irradiation is a promising phytosanitary treatment because a dose of 200 Gy completely prevents pest adult emergence. A pilot irradiation process of commercially packaged 'Red Delicious' apples and 'Packham's Triumph' pears was performed in an irradiation facility with a Cobalt 60 source. Quality analyses were carried out at 0, 2, 4, 6 and 8 months of storage (1 °C, RH 99%) to evaluate fruit tolerance at 200, 400 and 800 Gy. Irradiation at 200 and 400 Gy had no undesirable effects on fruit quality (pulp firmness, external colour, soluble solids content (SSC), titratable acidity (TA) and sensory evaluations). Irradiation of 'Red Delicious' apples and 'Packham's Triumph' pears can be applied as a commercial quarantine treatment with a minimum absorbed dose of 200 Gy (to control codling moth and Oriental fruit moth) and <800 Gy (according to quality results).

Placas máculonoduliformes hiperpigmentadas pruriginosas en niño de dos años de edad Nodular, brownish macules and pruriginous patches in a two years old boy

Directory of Open Access Journals (Sweden)

AD Pérez-Elizondo

2011-12-01

Full Text Available Se atiende a paciente masculino de dos años de edad, con numerosas placas máculonoduliformes discretamente sobreelevadas, de tinte marronáceo bien definidas, ovaladas e irregulares, muy pruriginosas, localizadas en tronco involucrando especialmente dorso. Tiempo de evolución: desde los seis meses de vida. Se refieren molestas agudizaciones y remisiones parciales, sin desaparición lesional completa a intervalos variables. Se observan episodios ampollosos y de urticación ocasionales, durante la exposición solar y baño corporal con agua caliente. La presentación clínica característica correlacionada con los hallazgos histopatológicos, confirma el diagnóstico de urticaria pigmentosa.A 2-year old male patient with multiple nodular and brownish itchy macules and patches, located at the back of the trunk was received medical attention at a children´s hospital. Frequent flares and incomplete remissions with blister and weal outbreaks after sun exposure and hot water baths were the rule. The distinctive cutaneous lesions as well as histopathological findings confirm urticaria pigmentosa.

Oceanic Chemistry and Biology Group (ONR Code 422CB) Program Science Report, FY 81,

Science.gov (United States)

1982-03-01

Current Micro- biol.). (c) P.J. Boyle and R. Mitchell, " Vibrio cholerae associated with a tropical crustacean wood-borer." (In Prep.). (d) S. Graham, D...participating in 4 cruises.L Two of these are undertaken in association with Dr. David Reid for 28a- Cu intercomparison (Gulf of Mexico and the Gulf of...of Panama, Western North Atlantic shelf waters, Mediterranean, and Northern Gulf of Mexico . This work has involved generation of a data base larger

Charles Dicken’s Use of Folklore: A Study of Elements in Bleak House

Science.gov (United States)

1981-04-21

asserts the association between death and blackness by misquoting Shakespeare ; in Hamlet Shakespeare refers to the "fell sergeant, Death," ~66 and Dickens...2t464. One can find many allusions to works by Shakespeare in Dickens’s novels. The relevance of Shakespeare as a source is a field that awaits extensive... Shakespeare Land (London: Mitchell Hughes and Clarke, 1929), p.41. 3Cora Linn Daniels, ed. Encyclopedia of Superstitions, Folklore and the Occult Sciences of

How to measure the regional impact of industrial tourism?

OpenAIRE

Alexander Otgaar; Jeroen Klijs

2011-01-01

Already in the 1980s industrial tourism - people visiting operational companies - has been identified as a growing segment of regional tourism industries. Since then the pressure on companies to open their doors for other members of the society has only increased. Several scholars (e.g. Frew, 2000; Soyez, 1993; Mitchell & Orwig, 2002) have discussed the relevance of industrial tourism for regions and firms. There are several reasons to promote industrial tourism but also to keep doors closed....

The things we learned on Liberty Island: designing games to help people become competent game players

OpenAIRE

Pelletier, Caroline

2005-01-01

Although interest in the use of games to support education is growing (e.g. Dawes & Dumbleton, 2001; McFarlane et al, 2002; Mitchell & Savill-Smith, 2004), there is relatively little research into how people learn to play games. This is surprising, since VanDeventer and White (2002) have demonstrated that game players demonstrate characteristics of expert behaviour and Gee (2003) argues that highly successful implicit theories of learning are embedded in well-designed games. In spite ...

US Army Medical Bioengineering Research and Development Laboratory Annual Progress Report for FY 84. Volume 1

Science.gov (United States)

1984-10-01

guanidIne nitrate, is biodegraded slowly in surface waters alone and relatively rapidly if present with metabolizable carbon, in which case the compound...Operation." AORN Journal 40 (1984):330. Goethals, Gerald B. "So, You Want to be in Movies ?" Today’s OR Nurse 6 (1984):36-37. Goyal, Sagar M., S.A. Schaub...Development Laboratory MR 8-84 (May 1984). Mitchell, Wayne R. Preliminarx Results of Biodegradation Studies for Guanidine Nitrate. US Army Medical

Measuring Business Cycle Time.

OpenAIRE

Stock, James H

1987-01-01

The business cycle analysis of Arthur F. Burns and Wesley C. Mitchell and the National Bureau of Economic Research presumed that aggregate economic variables evolve on a time scale defined by business cycle turning points rather than by months or quarters. Do macroeconomic variables appear to evolve on an economic rather than a calendar time scale? Evidence presented here suggests that they do. However, the estimated economic time scales are only weakly related to business cycle time scales, ...

Latin America Report, No. 2761

Science.gov (United States)

1983-11-08

find common ground - fine." Mitchell said that the opposition was fighting not just the Labour Party but ’ the Westminister System of "first...market" and was not looking after the farmers as he had intended it to do. On an alternative to the Westminister System, he saw the establishment of...dutiable im- ports was covered by incentive legislation and brought in little or no tax. The report envisages that revi- sion of the Common

Stennis Space Center celebrates Diversity Day

Science.gov (United States)

2009-01-01

Kendall Mitchell of the Naval Oceanographic Office (right) learns about the culture of Bolivia from Narda Inchausty, president of the Foreign Born Wives Association in Slidell, La., during 2009 Diversity Day events at NASA's John Stennis Space Center. Stennis hosted Diversity Day activities for employees on Oct. 7. The day's events included cultural and agency exhibits, diversity-related performances, a trivia contest and a classic car and motorcycle show. It also featured the first-ever sitewide Stennis Employee Showcase.

Characterization of the Pathological and Biochemical Markers that Correlate to the Clinical Features of Autism

Science.gov (United States)

2012-10-01

neurodegenerative disorders, including schizophrenia [45, 46], bipolar disorder [47], Parkinson’s disease and Alzheimer’s disease [18, 48]. Extensive...Prostaglandins Leukot Essent Fatty Acids 67:341–343 36. Adams JB, Audhya T, McDonough-Means S, Rubin RA, Quig D , Geis E, Gehn E, Loresto M, Mitchell J, Atwood S...Barnhouse S, Lee W (2011) Effect of a vitamin /mineral supplement on children and adults with autism. BMC Pediatr 11:111 37. Al Gadani Y, El Ansary A

Linear and Nonlinear Time-Frequency Analysis for Parameter Estimation of Resident Space Objects

Science.gov (United States)

2017-02-22

Vector Machines”, IEEE Trans. on Neural Networks , vol. 13(2), March 2002. [11] T. M. Mitchell, “Machine Learning”, McGraw-Hill, 1997 76DISTRIBUTION A...by the observer is given by: L = n∑ j=1 S(µ, µ0, α)ρjaj (31) where S is the scattering law (or Bidirectional Reflectance Distribution Function, BRDF...vector ma- chine learning”, Adv. Neural Information Processing Systems (NIPS*2000), Cambridge, MA, MIT Press, vol.13, 2001. [9] J., Wetson, and C

The Shock and Vibration Bulletin. Part 4. Structural Dynamics, Systems Identification, Computer Applications.

Science.gov (United States)

1977-09-01

FUNDAMENTAL FREQUENCIES OF ORTHOTROPIC PLATES WITH VARIOUS PLANFORMS AND EDGE CONDITIONS C.W. Bert, The University of Oklahoma, Norman , OK DYNAMIC RESPONSE OF...OF AN ADAPTIVE FILTER AS A DIGITAL TRACKING FILTER D.O. Smallwood and D.L. Gregory, Sandia Laboratories, Albuquerque, NM TOTAL MISSION ENVIRONMENTAL...Engineering, July 1962 . , 6. John D. Favour, MaClom C. Mitchell and 18. S.R. Ibrahim and E.C. Mikulcik, "A Time Norman L. Olson, "Transient Test Tech

Comparison Of Optical, UV, X-ray, And Gamma-ray Variations Of Selected Blazars In 2011

Science.gov (United States)

Consiglio, Santina; Marscher, A. P.; Jorstad, S. G.; Walker, G.

2012-01-01

We present multi-wavelength observations of several gamma-ray bright blazars. We combine optical data obtained at Maria Mitchell Observatory on Nantucket Island with space- and ground-based observations carried out with a variety of instruments. These include a number of other optical telescopes, the Fermi Gamma-ray Space Telescope at photon energies of 0.1-200 GeV, the Rossi X-Ray Timing Explorer at 2.4-10 keV, and the Swift satellite at 0.3-10 keV plus optical and UV wavelengths. Three of the observed blazars proved to be particularly active - BL Lac, 3C 279, and PKS 1510-089. BL Lac was of special interest, varying greatly in optical brightness from night to night. In addition, as reported by the VERITAS group, it exhibited a remarkable, short-lived flare at TeV gamma-ray energies on one of the nights. We cross-correlate the variations in the different wavebands in an effort to guide theoretical interpretations of the optical and high-energy emission from blazars. This project was supported by NSF/REU grant AST-0851892 and by the Nantucket Maria Mitchell Association. The research at Boston University was supported in part by NSF grants AST-0907893, and by NASA through Fermi grants NNX08AV65G and NNX11AQ03G.

ODORANT1 Regulates Fragrance Biosynthesis in Petunia FlowersW⃞

Science.gov (United States)

Verdonk, Julian C.; Haring, Michel A.; van Tunen, Arjen J.; Schuurink, Robert C.

2005-01-01

Floral scent is important to plant reproduction because it attracts pollinators to the sexual organs. Therefore, volatile emission is usually tuned to the foraging activity of the pollinators. In Petunia hybrida, volatile benzenoids determine the floral aroma. Although the pathways for benzenoid biosynthesis have been characterized, the enzymes involved are less well understood. How production and emission are regulated is unknown. By targeted transcriptome analyses, we identified ODORANT1 (ODO1), a member of the R2R3-type MYB family, as a candidate for the regulation of volatile benzenoids in Petunia hybrida cv W115 (Mitchell) flowers. These flowers are only fragrant in the evening and at night. Transcript levels of ODO1 increased before the onset of volatile emission and decreased when volatile emission declined. Downregulation of ODO1 in transgenic P. hybrida Mitchell plants strongly reduced volatile benzenoid levels through decreased synthesis of precursors from the shikimate pathway. The transcript levels of several genes in this pathway were reduced by suppression of ODO1 expression. Moreover, ODO1 could activate the promoter of the 5-enol-pyruvylshikimate-3-phosphate synthase gene. Flower pigmentation, which is furnished from the same shikimate precursors, was not influenced because color and scent biosynthesis occur at different developmental stages. Our studies identify ODO1 as a key regulator of floral scent biosynthesis. PMID:15805488

Bacterial extracellular polymeric substances (EPS): A carrier of heavy metals in the marine food-chain

Digital Repository Service at National Institute of Oceanography (India)

Bhaskar, P.V.; Bhosle, N.B.

Microbiology, Maier, R.M., Pepper, I.L. and Gerba, C.P., eds., Academic Press, San Diego, 2000. Schlekat, C.E., Decho, A.W. and Chandler, G.T. Dietary assimilation of cadmium associated with bacterial exopolymer sediment coatings by the estuarine amphipod...H environments. Appl. Environ. Microbiol., 55: 1249-1257; 1989. Ford, T.E., Maki, J.S. and Mitchell, R. The role of metal-binding bacterial exopolymers in corrosion processes. Corrosion/87, Paper no. 380, NACE publications, California; 1987. Geesey, G...

Proceedings of the Army Science Conference (15th) Held at West Point, New York on 17-19 June 1986. Volume 2. Principal Authors H through L.

Science.gov (United States)

1986-06-20

Miziolek, Andrzej W. Mescall, John F. Improved Modeling of Fracture in Il 41 .. ii. Tracy, Carl Ceramic Armors Meyer, Fred P. Hardening of High Silica...Mitchell, Glen W. See Simmons, Ronald IV 127 ’ ... Miziolek, Andrzej W. See Melius, Carl F. Il 25 Moerkirk, Robert P. See Ross, Raymond L. Ill 299...Trans. Comput., Vol. C-21, pp. 179-1 86. 4. Duda , R.Oo and P.E. Hart (1973) Pattern Classification and Scene Analysis, John Wiley & Sons, New York. 5

Cyber Security and Reliability in a Digital Cloud

Science.gov (United States)

2013-01-01

Runs the Mission  Mr. Bret Hartman  RSA  The Intelligent Security  Operations Center and  Advanced Persistent Threats  Mr. Chris C. Kemp  OpenStack  Cloud...Software  OpenStack  Cloud Software  Mr. Pravin Kothari  CipherCloud  Cloud Data Protection  Dr. John C. Mitchell  Stanford University  Innovation in

Comparison of Shear Shredder with Hammermill for Size Reduction of Navy Solid Waste

Science.gov (United States)

1986-03-01

IVY CASE) IS. $1,249,650 $1,002,420 11" MAJOR EQUIPMENT ,EPL-..EMENT COST $ $737,660 $499,100 144 115 KAXINL’ PRACTICAL PROJECT LIfE YEARS 20 20 116...DC DEFFUELSUPPCEN DFSC-OWE, Alexandria VA DLSIE Army Logistics Mgt Center, Fort Lee . VA DOE Whid’Ocean Tech Div. Tobacco. ’AD ENVIRONMENTAL PROTECHION...UNIVERSITY W.B. Ledbetter . College Station. TX UNIVERSITY OF CALIFORNIA Energy Engineer, Davis CA; Prof E.A. Pearson. Berkeley, CA; CE Dept (Mitchell

Understanding Drug Resistance to Targeted Therapeutics in Malignant B-Cell Lymphoproliferative Disorders (B-LPDs)

Science.gov (United States)

2014-10-01

1063-70. PMC2783430. 2. Zhang J, Jima DD, Jacobs C, Fischer R, Gottwein E, Huang G, Lugar PL, Lagoo AS, Rizzieri DA, Friedman DR, Weinberg JB...Khoury, Thomas R Klumpp, Hillard M Lazarus, Victor A Lewis, Philip L McCarthy, David A Rizzieri, Mitchell Sabloff, Jeff Szer, Martin S Tallman, and...malignant human B cells identifies hundreds of novel microRNAs. Blood. 2010;116(23):e118-27 5. Zhang J, Jima DD, Jacobs C, Fischer R, Gottwein E, Huang G

The social and psychological impact of endometriosis on women's lives: a critical narrative review

OpenAIRE

Culley, Lorraine; Law, Caroline; Hudson, Nicky; Denny, E.; Mitchell, H.; Baumgarten, M.; Raine-Fenning, N.

2013-01-01

The attached file is a pre – copy – editing, author produced PDF of an article accepted for publication in Human Reproduction Update following peer review. The definitive publisher – authenticated version (Culley, L, Law, C, Hudson, N, Denny, E, Mitchell, H, Baumgarten, M, Raine – Fenning, N (2013) The social and psychological impact of endometriosis on women’s lives: a critical narrative review. Hum. Reprod. Update 19 (6): 625 – 639) is available online at: http://humupd.oxfordjournals.org/...

The Air University Pantheon of Air, Space, and Cyberspace Power Thinkers

Science.gov (United States)

2009-08-01

Air Force would not have come as soon as it did. Learn more . . . • James J. Cooke, Billy Mitchell (Boulder, CO: L. Rienner, 2002). • Alfred F...Winter 1974): 18–25. • James Parton, “Air Force Spoken Here”: General Ira Eaker and the Command of the Air (Bethesda, MD: Adler and... Adler , 1986). 99 100 101 Dr. Theodore von Kármán (1881–1963) ♦ Father of supersonic flight ♦ Guggenheim Aeronautics Laboratory professor at the

High Frontier, The Journal for Space & Missile Professionals. Volume 4, Number 4

Science.gov (United States)

2008-08-01

the Hidden Story of America’s Space Espionage (New York, NY: Simon & Schuster, 2003), 364. 2 Dwayne A. Day, John M. Logsdon, and Brian Latell, Eye...is lengthy but includes folks like Lt Gen Mike Hamel, Lt Gen Tom Sheridan, Maj Gen Jimmy Morrell, Maj Gen Jim Armour , Maj Gen Mitch Mitchell, Brig...Security: Security was very tight. For example, shortly af- ter I was appointed DDNRO I was visited by Clarence “Kel- ly” Johnson , with whom I had worked

Vitamin D Supplementation for Prevention of Post-Traumatic Osteoarthritis: Evaluation in Animal and Clinical Models

Science.gov (United States)

2015-10-01

2011 May 1;48(5):1140-5. Epub 2011 Feb 02. 26. Wareham NJ, Jakes RW, Rennie KL, Schuit J, Mitchell J, Hennings S, Day NE. Validity and repeatability of a...telopeptide of type I collagen (serum CTx): effects of gender, age, menopausal status, posture , daylight, serum cortisol, and fasting. Bone. 2002 Jul;31(1...osteoporotic fractures by postural instability and bone density. BMJ. 1993 Oct 30;307(6912):1111-5. 40. Stegman MR, Recker RR, Davies KM, Ryan RA, Heaney

New Epigenetic Therapeutic Intervention for Metastatic Breast Cancer

Science.gov (United States)

2017-04-01

Metastasis” 04/20/2017 Distinguished Scientist Speaker, University of Southern Alabama Mitchell Cancer Institute, Mobile , AL, “Role and Regulation...tracks for Il21 andRock2, two important genes in Th17 cell differentiation (Figure 3G ). Further, the functional dif- ferences of Brd2 and Brd4 in gene...terminal Dub3 (Fig. 2f). Consistent with this, Dub3 only stabilized the N-terminal but not the C-terminal fragments of Snail1 (Fig. 2g ). The interaction

Cadmium and chromium removal kinetics from solution by two aquatic macrophytes

International Nuclear Information System (INIS)

Sune, N.; Sanchez, G.; Caffaratti, S.; Maine, M.A.

2007-01-01

The aim of this work was to determine chromium and cadmium bioaccumulation processes of two free-floating macrophytes commonly used in wetlands for water treatment: Salvinia herzogii and Pistia stratiotes. Metal removal from the solution involves two stages: a fast one and a slow one. The fast stage of the Cd uptake is significantly different for each species, while it is not significantly different in Cr uptake. The most important processes of Cd uptake are biological ones in S. herzogii and adsorption, chelation and ionic exchange are in P. stratiotes. The main processes of Cr uptake in both macrophytes are adsorption, chelation and ion exchange. The slow stage is different for each species and metal. Cr precipitation induced by roots occurs in P. stratiotes. Cr uptake through leaves is probably the main cause of the increase of Cr in the aerial parts of S. herzogii. - Cd uptake processes are biological processes in S. herzogii and adsorption, chelation and ionic exchange are in P. stratiotes, whereas Cr uptake processes in both macrophytes are adsorption, chelation and ion exchange

rbcL gene sequences provide evidence for the evolutionary lineages of leptosporangiate ferns.

Science.gov (United States)

Hasebe, M; Omori, T; Nakazawa, M; Sano, T; Kato, M; Iwatsuki, K

1994-06-07

Pteriodophytes have a longer evolutionary history than any other vascular land plant and, therefore, have endured greater loss of phylogenetically informative information. This factor has resulted in substantial disagreements in evaluating characters and, thus, controversy in establishing a stable classification. To compare competing classifications, we obtained DNA sequences of a chloroplast gene. The sequence of 1206 nt of the large subunit of the ribulose-bisphosphate carboxylase gene (rbcL) was determined from 58 species, representing almost all families of leptosporangiate ferns. Phlogenetic trees were inferred by the neighbor-joining and the parsimony methods. The two methods produced almost identical phylogenetic trees that provided insights concerning major general evolutionary trends in the leptosporangiate ferns. Interesting findings were as follows: (i) two morphologically distinct heterosporous water ferns, Marsilea and Salvinia, are sister genera; (ii) the tree ferns (Cyatheaceae, Dicksoniaceae, and Metaxyaceae) are monophyletic; and (iii) polypodioids are distantly related to the gleichenioids in spite of the similarity of their exindusiate soral morphology and are close to the higher indusiate ferns. In addition, the affinities of several "problematic genera" were assessed.

Laboratory tests for the phytoextraction of heavy metals from polluted harbor sediments using aquatic plants.

Science.gov (United States)

Mânzatu, Carmen; Nagy, Boldizsár; Ceccarini, Alessio; Iannelli, Renato; Giannarelli, Stefania; Majdik, Cornelia

2015-12-30

The aim of this study was to investigate the concentrations and pollution levels of heavy metals, organochlorine pesticides, and polycyclic aromatic hydrocarbons in marine sediments from the Leghorn Harbor (Italy) on the Mediterranean Sea. The phytoextraction capacity of three aquatic plants Salvinia natans, Vallisneria spiralis, and Cabomba aquatica was also tested in the removal of lead and copper, present in high concentration in these sediments. The average detectable concentrations of metals accumulated by the plants in the studied area were as follows: >3.328 ± 0.032 mg/kg dry weight (DW) of Pb and 2.641 ± 0.014 mg/kg DW of Cu for S. natans, >3.107 ± 0.034 g/kg DW for V. spiralis, and >2.400 ± 0.029 mg/kg DW for C. aquatica. The occurrence of pesticides was also analyzed in the sediment sample by gas chromatography coupled with mass spectrometry (GC/MS). Due to its metal and organic compound accumulation patterns, S. natans is a potential candidate in phytoextraction strategies. Copyright © 2015 Elsevier Ltd. All rights reserved.

Volcanogenic-hydrothermal iron-rich materials from the southern part of the Central Indian Ocean Basin

Digital Repository Service at National Institute of Oceanography (India)

Iyer, S; Gupta, S; Charan, S; Mills, O.P.

. This may further be corroborated by the E–W elongation of some of the N–S-oriented seamounts, caused by the addition of magmatic materials and are thus indicative of more than one episode of volcanism. There are additional evidences which indicate volcanic...-brown material from the Japan Basin. Mar. Geol. 129, 331–336. Aumento, F., Mitchell, W.S., 1975. Magnetic spherules from the Mid-Atlantic Ridge. Geology 3, 407–410. Barrett, T.J., Friedrichsen, H., 1982. Elemental and isotopic composition of some metalliferous...

Role of Stat3 and ErbB2 in Breast Cancer

Science.gov (United States)

2013-12-01

Nemoto, K.E. Pestell , K. Cooley, E.C. Southwick, D.A. Mitchell, W. Furey, R. Gussio, D.W. Zaharevitz, B. Joo, P. Wipf, Identification of a potent...7). Inorg Chem 2008, 47:2798–2804. 26. Bromberg JF, Wrzeszczynska MH, Devgan G, Zhao Y, Pestell RG, Albanese C, et al: Stat3 as an oncogene. Cell...Biochem Biophys Res Commun 382: 440-444, 2009. 7 Bromberg JF, Wrzeszczynska MH, Devgan G, Zhao Y, Pestell RG, Albanese C and Darnell JE Jr.: Stat3 as an

Os stakeholders da indústria hoteleira: uma classificação a partir de seus interesses ambientais

OpenAIRE

Ortíz, Yessica Victoria; Vargas Martínez, Elva Esther; Nava Rogel, Rosa María; Castillo Nechar, Marcelino

2016-01-01

Esta investigación tiene como fin clasificar a los stakeholders de la industria hotelera que pueden influir en las decisiones organizacionales, en particular, en su responsabilidad ambiental. La clasificación se realiza a partir de los vínculos, los atributos, la preocupación ambiental y la influencia sobre la gestión ambiental de los hoteles. Se utilizó el sistema de Rawlins (2006) y el modelo de atributos y prominencia de Mitchell, Agle y Wood (1997). El estudio posibilita el reconocimiento...

Los stakeholders de la industria hotelera: una clasificación a partir de sus intereses ambientales

OpenAIRE

Yessica Victoria Ortiz

2016-01-01

Esta investigación tiene como fin clasificar a los stakeholders de la industria hotelera que pueden influir en las decisiones organizacionales, en particular, en su responsabilidad ambiental. La clasificación se realiza a partir de los vínculos, los atributos, la preocupación ambiental y la influencia sobre la gestión ambiental de los hoteles. Se utilizó el sistema de Rawlins (2006) y el modelo de atributos y prominencia de Mitchell, Agle y Wood (1997). El estudio posibilita el reconocimiento...

85 dBA: is it protective enough to prevent hearing loss in South African miners?

CSIR Research Space (South Africa)

Edwards, A

2009-09-01

Full Text Available .(2007) was found to be exacerbated by workload and heat stress. In addition, the development of TTS and potentially NIHL is accelerated by smoking, and hearing loss is accelerated by drugs for the treatment of tuberculosis (TB) and by HIV/AIDS (Khoza... Pulmonary Disease in Workers of Southern Italy. Journal of Occupational & Environmental Medicine, 50(3):366-370. Campbell, K.C., Meech, R.P., Klemens, J.J., Gerberi, M.T., Dysstad, S.S., Larsen, D.L., Mitchell, D.L., El-Azizi, M., Verhulst, S...

Levantamento de plantas aquáticas no reservatório de Salto Grande, Americana-SP Aquatic plant survey in Salto Grande reservoir in Americana-SP, Brazil

Directory of Open Access Journals (Sweden)

D. Martins

2011-03-01

Full Text Available O objetivo deste estudo foi determinar a frequência relativa e o nível de infestação de cada espécie da flora aquática presente no reservatório de Salto Grande, Americana-SP. O levantamento e a identificação das plantas aquáticas foram realizados percorrendo-se as margens do reservatório em uma embarcação. Ao longo dele foram estabelecidos 20 pontos de avaliação, sendo todos eles fotografados e georreferenciados. Foram atribuídos valores de 0 a 100% tanto para as espécies presentes como para os espaços livres de macrófitas aquáticas que eventualmente pudessem ocorrer dentro dos pontos amostrados. Com os dados referentes ao número de indivíduos e pontos avaliados, foi determinada a frequência relativa de cada espécie. Foram identificadas 13 espécies em todo o reservatório, sendo 12 vasculares e uma de alga-verde (Chlorella spp.. Entre as espécies vasculares, nove eram plantas emersas flutuantes, as quais poderiam estar ou não ancoradas no leito do reservatório: Alternanthera philoxeroides, Brachiaria subquadripara, Cyperus difformis, Echinochloa polystachia var. spectabilis, Eichhornia crassipes, Panicum rivulare, Pistia stratiotes, Salvinia auriculata e Typha angustifolia. Outras três espécies foram encontradas somente em solo firme alagado: Aeschynomene sensitiva, Hedychium coronarium e Mimosa pigra.The objectives of this work were to determine the relative frequency and infestation level of each species present in the Salto Grande Reservoir in Americana-SP. The survey and identification of the aquatic plants were carried out in the Salto Grande reservoir on a boat. Twenty evaluation sites were established along the reservoir, photographed and geo-referenced. Values from 0 to 100% were assigned for both the species present and for the aquatic plants that could possibly occur within the sampled sites. Based on the number of individuals and points evaluated, the relative frequency of each species was determined

Mercury net methylation in five tropical flood plain regions of Brazil: high in the root zone of floating macrophyte mats but low in surface sediments and flooded soils.

Science.gov (United States)

Guimarães, J R; Meili, M; Hylander, L D; de Castro e Silva, E; Roulet, M; Mauro, J B; de Lemos, R

2000-10-16

In aquatic systems, bottom sediments have often been considered as the main methylmercury (MeHg) production site. In tropical floodplain areas, however, floating meadows and flooded forests extend over large areas and can be important Hg methylating sites. We present here a cross-system comparison of the Hg net methylation capacity in surface sediments, flooded soils and roots of floating aquatic macrophytes, assayed by in situ incubation with 203Hg and extraction of formed Me203 Hg by acid leaching and toluene. The presence of mono-MeHg was confirmed by thin layer chromatography and other techniques. Study areas included floodplain lakes in the Amazon basin (Tapajós, Negro and Amazon rivers), the Pantanal floodplain (Paraguay river basin), freshwater coastal lagoons in Rio de Janeiro and oxbow lakes in the Mogi-Guaçú river, São Paulo state. Different Hg levels were added in assays performed in 1994-1998, but great care was taken to standardise all other test parameters, to allow data comparisons. Net MeHg production was one order of magnitude higher (mean 13.8%, range 0.28-35) in the living or decomposing roots of floating or rooted macrophyte mats (Eichhornia azurea, E. crassipes, Paspalum sp., Eleocharis sellowiana, Salvinia sp., S. rotundifolia and Scirpus cubensis) than in the surface layer of underlying lake sediments (mean 0.6%, range 0.022-2.5). Methylation in flooded soils presented a wide range and was in some cases similar to the one found in macrophyte roots but usually much lower. In a Tapajós floodplain lake, natural concentrations of MeHg in soil and sediment cores taken along a lake-forest transect agreed well with data on net methylation potentials in the same samples. E. azurea, E. crassipes and Salvinia presented the highest methylation potentials, up to 113 times higher than in sediments. Methylation in E. azurea from six lakes of the Paraguay and Cuiabá rivers, high Pantanal, was determined in the 1998 dry and wet seasons and ranged from

Caracterização da qualidade de água e sedimento na UHE Americana relacionados à ocorrência de plantas aquáticas Characterization of water and sediment quality at the Americana reservoir related to the occurrence of aquatic plants

Directory of Open Access Journals (Sweden)

E.D. Velini

2005-06-01

Full Text Available Este trabalho foi realizado na UHE Americana, pertencente à Companhia Paulista de Força e Luz, e faz parte de um projeto de pesquisa e desenvolvimento realizado em conjunto com a Faculdade de Ciências Agronômicas (UNESP de Botucatu. Foram realizadas amostragens de água e sedimento nos meses de outubro e dezembro de 2003 e fevereiro, abril e junho de 2004. Selecionaram-se seis pontos de coleta no reservatório, sendo cinco a montante da barragem e um a jusante. Levantamentos de flora foram realizados nos meses de dezembro de 2003 e abril e julho de 2004, sendo constatados elevados teores de nitrogênio e fósforo nas amostras de água, com valores médios de 3,867 mg L-1 para nitrato, 0,706 mg L-1 para amônia, 1,372 mg L-1 para nitrito e 151,979 µg L-1 para fosfato dissolvido na água. O sedimento apresentou elevado nível de fertilidade, com médias de 32,18 g kg-1 para matéria orgânica, 68,87 mg dm-3 para P, 36,96 mmol dm-3 para Ca e 11,88 mmol dm-3 para Mg. Espécies marginais e flutuantes foram as principais infestantes do reservatório, destacando-se Brachiaria subquadripara, Eichhornia crassipes, Pistia stratiotes e Salvinia auriculata.This work was carried out at the Americana Reservoir, owned by Companhia Paulista de Força e Luz, and was part of a joint R & D project with Faculdade de Ciências Agronômicas - Botucatu - São Paulo - Brazil. Water and sediment samplings were collected in October and December 2003 and February, April and June 2004. Six sampling points were selected, being five upstream the barrage and one downstream. Flora assessment was carried out in December 2003, April and July 2004. High levels of nitrogen and phosphorus were observed in the water samples with average values of 3.867 mg L-1 for nitrate, 0.706 mg L-1 for ammonia, 1.372 mg L-1 for nitrite and 151.979 µg L-1 for phosphate dissolved in water. Sediment presented a high level of fertility with mean values of 31.18 g kg-1 for organic matter, 68

PENGENDALIAN KROMIUM (CR YANG TERDAPAT DI LIMBAH BATIK DENGAN METODE FITOREMEDIASI

Directory of Open Access Journals (Sweden)

Andik Setiyono

2017-07-01

Full Text Available Motif dan warna batik dihasilkan dengan pewarna yang mengandung logam berat kromium (Cr. Industri batik secara umum tergolong usaha kecil dan menengah sehingga sebagian besar tidak mengolah limbah batik yang mengandung logam berat Cr. Tujuan penelitian ini adalah memberikan alternatif solusi dari dampak pencemaran Cr dengan memanfaatkan berbagai tumbuhan untuk menyerap Cr pada limbah batik. Penelitian ini adalah kuasi eksperimen dengan rancangan desain pre and post test. Tanaman air yang dipilih adalah enceng gondok (Eichornia crassipes, kayu apu (Pistia stratiotes, dan kayambang (Salvinia cucullata yang ditanam pada wadah yang berisi air limbah selama 5 hari. Konsentrasi Cr pada air limbah kelompok 1 menurun dari 0,0546 mg/l menjadi 0,0378 mg/l setelah diberi perlakuan dengan enceng gondok. Konsentrasi Cr pada air limbah kelompok 2 menurun dari 0,0488 mg/l menjadi 0,0315 mg/l setelah diberi perlakuan dengan kayambang. Konsentrasi Cr pada air limbah kelompok 1 menurun dari 0,0464 mg/l menjadi 0,0240 mg/l setelah diberi perlakuan dengan kayu apu. Hasil uji statistik dengan uji Kruskal Wallis menunjukkan nilai p= 0,280 sehingga disimpulkan tidak ada perbedaan penyerapan Cr yang terdapat pada limbah batik pada jenis tanaman enceng gondok, kayu apu, dan kayambang.   Kata Kunci : Cr, Limbah batik, Fitoremediasi   Abstract Batik motifs and colors are produced with dyes containing heavy metal chromium (Cr. Batik industries is generally classified as small and medium enterprises, so most of them do not process batik waste containing heavy metal Cr. The purpose of this research was to provide alternative solution from Cr pollution impact by utilizing various plants to absorb Cr in batik waste. This research was a quasi experiment with pre and post test design. The selected aquatic plants were water hyacinth or “enceng gondok” (Eichornia crassipes, “kayu apu” (Pistia stratiotes, and “kayambang” (Salvinia cucullata. They were grown in

Biological Monitoring and Abatement Program for the Oak Ridge K-25 Site

International Nuclear Information System (INIS)

Kszos, L.A.; Adams, S.M.; Ashwood, T.L.; Blaylock, B.G.; Greeley, M.S.; Loar, J.M.; Peterson, M.J.; Ryon, M.G.; Smith, J.G.; Southworth, G.R.; Hinzman, R.L.; Shoemaker, B.A.

1993-04-01

A proposed Biological Monitoring and Abatement Program (BMAP) for the Oak Ridge K-25 Site was prepared in December 1992 as required by the renewed National Pollutant Discharge Elimination System permit that was issued on October 1, 1992. The proposed BMAP is based on results of biological monitoring conducted from 1986 to 1992 and discussions held on November 12, 1992, between staff of Martin Marietta Energy Systems, Inc. (Oak Ridge National Laboratory and the K-25 Site), and the Tennessee Department of Environment and Conservation, Department of Energy Oversight Division. The proposed BMAP consists of four tasks that reflect different but complementary approaches to evaluating the effects of K-25 Site effluents on the ecological integrity of Mitchell Branch, Poplar Creek, and the Poplar Creek embayment of the Clinch River. These tasks include (1) ambient toxicity monitoring, (2) bioaccumulation monitoring, (3) assessment of fish health, and (4) instream monitoring of biological communities. This overall BMAP plan combines established protocols with current biological monitoring techniques to assess environmental compliance and quantify ecological recovery. The BMAP will also determine whether the effluent limits established for the K-25 Site protect the designated use of the receiving streams (Mitchell Branch, Poplar Creek, and Clinch River) for growth and propagation of fish and other aquatic life. Results obtained from this biological monitoring program will also be used to document the ecological effects (and effectiveness) of remedial actions

Biological Monitoring and Abatement Program for the Oak Ridge K-25 Site

Energy Technology Data Exchange (ETDEWEB)

Kszos, L.A.; Adams, S.M.; Ashwood, T.L.; Blaylock, B.G.; Greeley, M.S.; Loar, J.M.; Peterson, M.J.; Ryon, M.G.; Smith, J.G.; Southworth, G.R. (Oak Ridge National Lab., TN (United States)); Hinzman, R.L. (Oak Ridge Research Inst., TN (United States)); Shoemaker, B.A. (Oak Ridge K-25 Site, TN (United States))

1993-04-01

A proposed Biological Monitoring and Abatement Program (BMAP) for the Oak Ridge K-25 Site was prepared in December 1992 as required by the renewed National Pollutant Discharge Elimination System permit that was issued on October 1, 1992. The proposed BMAP is based on results of biological monitoring conducted from 1986 to 1992 and discussions held on November 12, 1992, between staff of Martin Marietta Energy Systems, Inc. (Oak Ridge National Laboratory and the K-25 Site), and the Tennessee Department of Environment and Conservation, Department of Energy Oversight Division. The proposed BMAP consists of four tasks that reflect different but complementary approaches to evaluating the effects of K-25 Site effluents on the ecological integrity of Mitchell Branch, Poplar Creek, and the Poplar Creek embayment of the Clinch River. These tasks include (1) ambient toxicity monitoring, (2) bioaccumulation monitoring, (3) assessment of fish health, and (4) instream monitoring of biological communities. This overall BMAP plan combines established protocols with current biological monitoring techniques to assess environmental compliance and quantify ecological recovery. The BMAP will also determine whether the effluent limits established for the K-25 Site protect the designated use of the receiving streams (Mitchell Branch, Poplar Creek, and Clinch River) for growth and propagation of fish and other aquatic life. Results obtained from this biological monitoring program will also be used to document the ecological effects (and effectiveness) of remedial actions.

Elaboration of a strategy to control the peach twig borer Anarsia lineatella Zeller in the Sefrou region in Morocco

Directory of Open Access Journals (Sweden)

Asfers Adil

2016-12-01

Full Text Available Trapping by specific sex pheromones initiated in 2009 to monitor three pests, peach twig borer (Anarsia lineatella, oriental fruit moth (Cydia molesta and plum fruit moth (Grapholita funebrana revealed the greater importance of peach twig borer in comparison to the others. The results of monitoring the development of larval stages over time and the accumulated degree-days from biofix show that the pest develops five generations per year, one of which undergoes a diapause. In 2009 and 2010 chemical control based on tolerance threshold of 10 males/trap/2 weeks showed unsatisfactory results. With this method, the percentage of affected fruits increased from 6.8% in 2009 to 18.6% in 2010 despite the application of four treatments of organophosphate-based insecticides in 2009 and the application of four treatments in 2010 using active ingredients from different chemical families (pyrethroid, organophosphate and chlorinicotinyl. On the other hand, management of the peach twig borer by the degree-days method tested and planned on the basis of a bifenthrin treatment between 150 to 204 degree-days accumulated from biofix, gave interesting results where the percentage of affected fruits hardly exceeded 0.5% over the four years of study

Are adult life history traits in oriental fruit moth affected by a mild pupal heat stress?

Science.gov (United States)

Zheng, Jincheng; Cheng, Xiongbin; Hoffmann, Ary A; Zhang, Bo; Ma, Chun-Sen

2017-10-01

Thermal stress at one life stage can affect fitness at a later stage in ectotherms with complex life cycles. Most relevant studies have focused on extreme stress levels, but here we also show substantial fitness effects in a moth when pupae are exposed to a relatively mild and sublethal heat stress. We consider the impact of a 35°C heat stress of 2h in three geographically separate populations of the oriental fruit moth (OFM, Grapholita molesta) from northern, middle and southern China. Heat stress negatively affected fecundity but increased adult heat resistance and adult longevity. Fitness effects were mostly consistent across populations but there were also some population differences. In the Shenyang population from northern China, there was a hormetic effect of heat on female longevity not evident in the other populations. Adults from all populations had higher LT 50 s due to heat stress after pupal exposure to the sublethal stress. These results highlight that the pupal stage is a particularly sensitive window for development and they have implications for seasonal adaptation in uncertain environments as well as changes in pest dynamics under climate warming. Copyright © 2017 Elsevier Ltd. All rights reserved.

Contaminación acústica en la zona 3 de la ciudad de Querétaro: comparación de los niveles de ruido reales y los apreciados por los habitantes

Directory of Open Access Journals (Sweden)

Ivan Peñaloza Pineda

2016-01-01

Full Text Available En este artículo se describen los daños ocasionados la contaminación acústica en distintos niveles, expuestos en diversos estudios científicos; se muestran mediciones de decibeles in situ, así como los resultados de un estudio exploratorio que expone la percepción respecto a la contaminación acústica de 168 habitantes de una zona determinada de la ciudad de Querétaro, con el objetivo de encontrar el grado de afectación percibida para determinar si hay concordancia al respecto. El presente artículo forma parte de una investigación encaminada al desarrollo de un producto orientado a la disminución del ruido en las viviendas. Nuestros hallazgos indican que, aunque cerca de 60% de los encuestados encuentra el ruido de la zona como “elevado”, e identifica los vehículos y las motocicletas como la fuente de ruido más molesta, al mismo tiempo no son conscientes de las afectaciones en el desempeño de sus actividades como consecuencia de los niveles de contaminación acústica en la zona.

¿Qué democracia tenemos?, ¿Qué democracia queremos?

Directory of Open Access Journals (Sweden)

Joan Subirats

2011-10-01

Full Text Available En los últimos tiempos, los Estados tienen crecientes dificultades ya no para controlar, sino simplemente para responder o acomodarse a dinámicas económicas y financieras que les desbordan por completo. Frente a todo ello, mucha gente en España y en otros países, se empieza a mostrar tremendamente molesta por la docilidad y servidumbre política. Hemos pasado del conflicto social que buscaba respuesta en el sistema democrático, a un conflicto social que entiende que no hay respuesta posible sin transformar y modificar también el propio sistema democrático.Palabras clave: Democracia, participación, ciudadanía________________Abstract: In the last time, the states have difficultys to control or answer of economic and finantial dynamics. In front of that, many people in Spain and in other countries shows discomfort for the politic docility. From the social conflict which expect an answer in the democratic system we are in a new social conflict which understand the answer is in a transformation of democratic system.Keywords: democracy, participation, citizenship

Natural road construction materials of Southern Africa

CSIR Research Space (South Africa)

Weinert, HH

1980-01-01

Full Text Available respectively. p. 210. column 4: Insert Notre in rect311glc directly below heading Matrix. p. 240, paragraph 5, line 4: J 770 should read I 700. I ~I -~ r THE NATURAL ROAD CONSTRUCTION MATERIALS OF SOUTHERN AFRICA ACADEMICA I PRETORIA ICAPE TOWN ISBN... and the author acknowledges gratefully the valuable assistance and the trouble taken by the following persons: Southern African road authorities: Mr W. J. Biesenbach, Mr H. K. Geel, Mr C. L. Laubscher, Mr G. P. Marais, Mr R. L. Mitchell, Mr I. P. A. Smit, Mr C...

Analytical singular-value decomposition of three-dimensional, proximity-based SPECT systems

Energy Technology Data Exchange (ETDEWEB)

Barrett, Harrison H. [Arizona Univ., Tucson, AZ (United States). College of Optical Sciences; Arizona Univ., Tucson, AZ (United States). Center for Gamma-Ray Imaging; Holen, Roel van [Ghent Univ. (Belgium). Medical Image and Signal Processing (MEDISIP); Arizona Univ., Tucson, AZ (United States). Center for Gamma-Ray Imaging

2011-07-01

An operator formalism is introduced for the description of SPECT imaging systems that use solid-angle effects rather than pinholes or collimators, as in recent work by Mitchell and Cherry. The object is treated as a 3D function, without discretization, and the data are 2D functions on the detectors. An analytic singular-value decomposition of the resulting integral operator is performed and used to compute the measurement and null components of the objects. The results of the theory are confirmed with a Landweber algorithm that does not require a system matrix. (orig.)

Local governing of climate change in Denmark

DEFF Research Database (Denmark)

Berthou, Sara Kristine Gløjmar; Ebbesen, Betina Vind

2016-01-01

This paper is concerned with the ways in which Danish municipalities seek to mitigate climate change through a range of governance strategies. Through the analysis of ten municipal climate plans using the framework of Mitchell Dean, as well as extensive ethnographic fieldwork in two municipalities......, this paper explores how local climate change mitigation is shaped by particular rationalities and technologies of government, and thus seeks to illustrate how the strategies set out in the plans construe climate change mitigation from a certain perspective, thereby rendering some solutions more likely than...

The Gibson and Piggott osteotomy for adult hallux valgus.

Science.gov (United States)

Rangrez, Arshad Bashir; Dar, Tahir Ahmed; Badoo, Abdul Rashid; Wani, Sharief Ahmed; Dhar, Shabir Ahmed; Mumtaz, Imran; Ahmed, Muzzaffar

2012-01-01

The Gibson and Piggott procedure for hallux valgus is based on sound surgical principles addressing the basic pathologies of this disorder. However, this procedure has not been studied extensively in the literature in comparison to the Mitchell and Chevron osteotomies. We report a prospective study conducted on 50 adult feet with hallux valgus. The Gibson and Piggot osteotomy was done on all the feet. We obtained 76% excellent and 18% good results with this procedure. The results bear out the fact that this procedure is a useful procedure for the management of this disorder.

Obituary: Henry Albers (1925-2009)

Science.gov (United States)

Chromey, Fred

2011-12-01

Henry Albers, professor of astronomy at Vassar College for over thirty years, died March 29, 2009, in Fairhope, Alabama. For his work at Vassar, where he held the Maria Mitchell Chair, Albers received the first Maria Mitchell Women in Science Award for his inspiration of women astronomers. He said "In the final analysis it is the students who bring the joy into teaching." As a professional astronomer, Albers did observational work on Galactic structure in the southern Milky Way, and on the structure of the Magellanic Clouds. In retirement, Albers published Maria Mitchell - A Life in Journals and Letters, the firsthand account of America's first woman astronomer. Albers's research was on photographic near-infrared spectroscopy of red giant stars in the southern Milky Way, some proper motion studies, and on the structure of the Magellanic Clouds. A series of seven NSF grants supported his six trips to Chile to make spectroscopic observations, as well as his sabbatical collaborations at Minnesota, Leiden, and the Royal Observatory in Edinburgh. Henry Albers arrived at Vassar in 1958, to find an astronomy program that had been recently absorbed by the physics department, and that was suffering neglect after the retirement of Maud Makemson. For the next 31 years, with incredible energy -- he sometimes taught seven courses a year -- he built the astronomy program into one double in size (from one to two tenure lines), whose th century facilities have been replaced with a st century observatory. For a remarkable stretch of 20-some-years, Albers and physicist Bob Stearns, with considerable grace, alternated chairmanship of the joint department of physics and astronomy. Henry Albers was a devoted citizen of Vassar College and an enthusiastic participant in the process of faculty governance at that institution. He would have been the first to concede that his enthusiasm was sometimes excessive, and that his contributions at faculty meetings occasionally failed to move the

Occurrence of antibiotics in water, sediments, aquatic plants, and animals from Baiyangdian Lake in North China.

Science.gov (United States)

Li, Wenhui; Shi, Yali; Gao, Lihong; Liu, Jiemin; Cai, Yaqi

2012-11-01

This study investigated the presence and distribution of 22 antibiotics, including eight quinolones, nine sulfonamides and five macrolides, in the water, sediments, and biota samples from Baiyangdian Lake, China. A total of 132 samples were collected in 2008 and 2010, and laboratory analyses revealed that antibiotics were widely distributed in the lake. Sulfonamides were the dominant antibiotics in the water (0.86-1563 ng L(-1)), while quinolones were prominent in sediments (65.5-1166 μg kg(-1)) and aquatic plants (8.37-6532 μg kg(-1)). Quinolones (17.8-167 μg kg(-1)) and macrolides [from below detection limit (BDL) to 182 μg kg(-1)] were often found in aquatic animals and birds. Salvinia natans exhibited the highest bioaccumulation capability for quinolones among three species of aquatic plants. Geographical differences of antibiotic concentrations were greatly due to anthropogenic activities. Sewage discharged from Baoding City was likely the main source of antibiotics in the lake. Risk assessment of antibiotics on aquatic organisms suggested that algae and aquatic plants might be at risk in surface water, while animals were likely not at risk. Copyright © 2012 Elsevier Ltd. All rights reserved.

Water quality and communities associated with macrophytes in a shallow water-supply reservoir on an aquaculture farm.

Science.gov (United States)

Sipaúba-Tavares, L H; Dias, S G

2014-05-01

Plankton communities and macrofauna associated to aquatic macrophyte stands in a shallow water-supply reservoir (21°14'09″S; 48°18'38″W) on an aquaculture farm were compared to evaluate the relationship between organism densities and some abiotic features of the reservoir. Water and communities associated were sampled at two sites, one in an area with the predominance of Eichhornia azurea (Sw.) Kunth and the other with the predominance of Salvinia auriculata Aublet. Communities associated with macrophytes were sampled with floating quadrants (0.5 m2); the macrophytes were washed and plankton and macrofauna were fixated with 4% formalin and 1% lugol iodine; the specimens were then identified and counted. Plankton and macrofauna communities associated with S. auriculata and E. azurea had a similar diversity of species but different (pmacrophytes presence in the shallow reservoir is a strong predictor of favourable conditions to maintain great diversity plankton community and macrofauna associated with plants. The role of macrophytes is important for not only stabilising the clear-water state and maintaining high diversity of organisms associated, but also it seems to be a good alternative to maintaining desirable water-supply quality for aquaculture farms.

Removal of Metal Nanoparticles Colloidal Solutions by Water Plants

Science.gov (United States)

Olkhovych, Olga; Svietlova, Nataliia; Konotop, Yevheniia; Karaushu, Olena; Hrechishkina, Svitlana

2016-11-01

The ability of seven species of aquatic plants ( Elodea canadensis, Najas guadelupensis, Vallisneria spiralis L., Riccia fluitans L., Limnobium laevigatum, Pistia stratiotes L., and Salvinia natans L.) to absorb metal nanoparticles from colloidal solutions was studied. It was established that investigated aquatic plants have a high capacity for removal of metal nanoparticles from aqueous solution (30-100%) which indicates their high phytoremediation potential. Analysis of the water samples content for elements including the mixture of colloidal solutions of metal nanoparticles (Mn, Cu, Zn, Ag + Ag2O) before and after exposure to plants showed no significant differences when using submerged or free-floating hydrophytes so-called pleuston. However, it was found that the presence of submerged hydrophytes in aqueous medium ( E. canadensis, N. guadelupensis, V. spiralis L., and R. fluitans L.) and significant changes in the content of photosynthetic pigments, unlike free-floating hydrophytes ( L. laevigatum, P. stratiotes L., S. natans L.), had occur. Pleuston possesses higher potential for phytoremediation of contaminated water basins polluted by metal nanoparticles. In terms of removal of nanoparticles among studied free-floating hydrophytes, P. stratiotes L. and S. natans L. deserve on special attention.

Retrofitting Garden-Style Apartments in Brooklyn, New York

Energy Technology Data Exchange (ETDEWEB)

Nolen, Heather [Steven Winter Associates, Inc., Norwalk, CT (United States); Maxwell, Sean [Steven Winter Associates, Inc., Norwalk, CT (United States); Neri, Robin [Steven Winter Associates, Inc., Norwalk, CT (United States); Grab, Joanna [Steven Winter Associates, Inc., Norwalk, CT (United States)

2016-02-01

This research effort sought to achieve a solution package that yields energy savings greater than 30% over the pre-existing conditions in a minimally intrusive multifamily retrofit project. The Consortium for Advanced Residential Buildings (CARB) partnered with L+M Development Partners, Inc. on a Mitchell-Lama Housing Program project, Marcus Garvey Village, in Brooklyn, NY (Climate Zone 4A). The Mitchell-Lama Housing Program is a form of housing subsidy in the state of New York that provides affordable rental and cooperative housing to moderate- and middle-income families. Marcus Garvey Village was founded in 1975 and contains 625 residential units (ranging from studios to 5-bedroom units) in thirty-two 4-story garden-style apartment structures built with concrete and faced in light brown brick. The single largest challenge for implementation of energy conservation measures at Marcus Garvey was working within occupied spaces. Measures are being implemented in phases to minimize disruption. As of August 2015, the retrofit work is over 50% complete. The wall insulation, sealing of the through wall AC vent, and installation of new oil-filled electric baseboards with advanced controls are conducted at one time, limiting disruption to the living room space. In a similar fashion, the kitchen work is done, then the bathroom. The final selection of energy conservation measures is projected to save 26.5% in source energy with a cost just under $3.7 million and utility bill savings of nearly $480,000 (of an average $1.8 million annual utility cost for the development).

Two-Decade Monitoring of MWC349 in Optical and Radio: New Results

Science.gov (United States)

Thomashow, Eydon; Jorgenson, Regina A.; Strelnitski, Vladimir; Walker, Gary; Maria Mitchell Observatory (MMO) Research Experiences for Undergraduate (REU) Interns, 2017

2018-01-01

Maria Mitchell Observatory (MMO) has completed the two-decade long monitoring of MWC 349 in the optical and radio domains. This poster presentation will be primarily devoted to the new results obtained by optical photometry with broad and narrow band filters and observations of the variability in the masing H30 radio line during the observational season of 2017. The H30 emission arises in the circumstellar disk of the MWC 349A component of the visual double star (with 2.4 arcsec separation between the A and B components). Variable optical emission is also believed to be due to star A. By combining our optical observations with earlier MMO observations, we not only confirmed the previously known quasi-period of ~230 days, but confirmed a second period of ~700 days. One of the most interesting results of radio monitoring is the long-term variability of the systemic radial velocity of star A, as determined through averaging the radial velocities of the two masing peaks arising in the circumstellar disk. This may be the first case where a possible hidden close companion of a star (a lower mass star or a massive protoplanet) is detected by monitoring the radial velocity of the star via the spectral line radiation from its disk. E.T. completed this project as a 2017 MMO NSF REU intern and would like to thank the other interns for their help in conducting the optical observations. This project was supported in part by the NSF REU grant AST-1358980 and by the Nantucket Maria Mitchell Association.

Persistent growth of a young andesite lava cone: Bagana volcano, Papua New Guinea

Science.gov (United States)

Wadge, G.; McCormick Kilbride, B. T.; Edmonds, M.; Johnson, R. W.

2018-05-01

Bagana, an andesite lava cone on Bougainville Island, Papua New Guinea, is thought to be a very young central volcano. We have tested this idea by estimating the volumes of lava extruded over different time intervals (1-, 2-, 3-, 9-, 15-, 70-years) using digital elevation models (DEMs), mainly created from satellite data. Our results show that the long-term extrusion rate at Bagana, measured over years to decades, has remained at about 1.0 m3 s-1. We present models of the total edifice volume, and show that, if our measured extrusion rates are representative, the volcano could have been built in only 300 years. It could also possibly have been built at a slower rate during a longer, earlier period of growth. Six kilometres NNW of Bagana, an andesite-dacite volcano, Billy Mitchell, had a large, caldera-forming plinian eruption 437 years ago. We consider the possibility that, as a result of this eruption, the magma supply was diverted from Billy Mitchell to Bagana. It seems that Bagana is a rare example of a very youthful, polygenetic, andesite volcano. The characteristics of such a volcano, based on the example of Bagana, are: a preponderance of lava products over pyroclastic products, a high rate of lava extrusion maintained for decades, a very high rate of SO2 emission, evidence of magma batch fractionation and location in a trans-tensional setting at the end of an arc segment above a very steeply dipping and rapidly converging subduction zone.

Building America Case Study: Retrofitting Garden-Style Apartments, Brooklyn, New York

Energy Technology Data Exchange (ETDEWEB)

H. Nolen, S. Maxwell, R. Neri, J. Grab

2016-12-01

This research effort sought to achieve a solution package that yields energy savings greater than 30 percent over the pre-existing conditions in a minimally intrusive multifamily retrofit project. The Consortium for Advanced Residential Buildings (CARB) partnered with L+M Development Partners, Inc. on a Mitchell-Lama Housing Program project, Marcus Garvey Village, in Brooklyn, NY (Climate Zone 4A). The Mitchell-Lama Housing Program is a form of housing subsidy in the state of New York that provides affordable rental and cooperative housing to moderate- and middle-income families. Marcus Garvey Village was founded in 1975 and contains 625 residential units (ranging from studios to 5-bedroom units) in thirty-two 4-story garden-style apartment structures built with concrete and faced in light brown brick. The single largest challenge for implementation of energy conservation measures at Marcus Garvey was working within occupied spaces. Measures are being implemented in phases to minimize disruption. As of August 2015, the retrofit work is over 50 percent complete. The wall insulation, sealing of the through wall AC vent, and installation of new oil-filled electric baseboards with advanced controls are conducted at one time, limiting disruption to the living room space. In a similar fashion, the kitchen work is done, then the bathroom. The final selection of energy conservation measures is projected to save 26.5 percent in source energy with a cost just under $3.7 million and utility bill savings of nearly $480,000 (of an average $1.8 million annual utility cost for the development).

CCoAOMT Down-Regulation Activates Anthocyanin Biosynthesis in Petunia1

Science.gov (United States)

Shaipulah, Nur Fariza M.; Muhlemann, Joëlle K.; Woodworth, Benjamin D.; Van Moerkercke, Alex; Ramirez, Aldana A.; Haring, Michel A.; Schuurink, Robert C.

2016-01-01

Anthocyanins and volatile phenylpropenes (isoeugenol and eugenol) in petunia (Petunia hybrida) flowers have the precursor 4-coumaryl coenzyme A (CoA) in common. These phenolics are produced at different stages during flower development. Anthocyanins are synthesized during early stages of flower development and sequestered in vacuoles during the lifespan of the flowers. The production of isoeugenol and eugenol starts when flowers open and peaks after anthesis. To elucidate additional biochemical steps toward (iso)eugenol production, we cloned and characterized a caffeoyl-coenzyme A O-methyltransferase (PhCCoAOMT1) from the petals of the fragrant petunia ‘Mitchell’. Recombinant PhCCoAOMT1 indeed catalyzed the methylation of caffeoyl-CoA to produce feruloyl CoA. Silencing of PhCCoAOMT1 resulted in a reduction of eugenol production but not of isoeugenol. Unexpectedly, the transgenic plants had purple-colored leaves and pink flowers, despite the fact that cv Mitchell lacks the functional R2R3-MYB master regulator ANTHOCYANIN2 and has normally white flowers. Our results indicate that down-regulation of PhCCoAOMT1 activated the anthocyanin pathway through the R2R3-MYBs PURPLE HAZE (PHZ) and DEEP PURPLE, with predominantly petunidin accumulating. Feeding cv Mitchell flowers with caffeic acid induced PHZ expression, suggesting that the metabolic perturbation of the phenylpropanoid pathway underlies the activation of the anthocyanin pathway. Our results demonstrate a role for PhCCoAOMT1 in phenylpropene production and reveal a link between PhCCoAOMT1 and anthocyanin production. PMID:26620524

A game is a game is a game

DEFF Research Database (Denmark)

Jørgensen, Ida Kathrine Hammeleff

2017-01-01

Recently self-referentiality have occurred as a trend among game designers and have also enjoyed sporadic attention in academia. However, in academia, discussions of self-referential games often rest on proceduralist arguments and a too exclusive focus on the game object. This paper draws...... on the typology of meta-pictures developed by art historian J.W.T. Mitchell. Based on this typology, this paper discusses the notion of meta-games and suggest a broad conception of such games that includes not only the game object, but also the player and the discourse in which it is interpreted....

Stability of parameters in repeated TVA measures

DEFF Research Database (Denmark)

Sørensen, Thomas Alrik

Several recent studies have explored the limitations of human visual short-term memory or VSTM (e.g. Luck & Vogel, 1997; Wheeler & Treisman, 2002; Alvarez & Cavanagh, 2004). Usually researchers agree that VSTM is limited to a capacity of about 3 to 4 objects at any given moment (Cowan, 2001......). Capacity of short-term memory is measured in a range of studies often using the change detection paradigm (CD). However, the whole report paradigm (WR) may be a more reliable paradigm (Cusack, Lehmann, Veldsman, & Mitchell, 2009). Moreover, each individual WR trial yield more information compared to a CD...

Audit culture revisited

DEFF Research Database (Denmark)

Shore, Cris; Wright, Susan

2015-01-01

the financial and the moral meet’ we ask, what new kinds of ‘ethics of accountability’ does audit produce? We build on the work of Mitchell (1999), Trouillot (2001) and Merry (2011) to identify five ways in which the techniques and logics of financial accountancy have notable ‘audit effects...... these new financialized techniques of governance, not least through the work of the ‘Big 4’ accountancy firms, and trace their impact across a number of different fields, from administration and the military to business corporations and universities. Following Strathern’s observation that audit is ‘where...

Mean ozone and water vapour height profiles for Southern hemisphere region using radiosonde or ozonesonde and haloe satelite data

CSIR Research Space (South Africa)

Sivakumar, V

2009-01-01

Full Text Available obtained from HALOE datasets 6 3.3. SHADOZ mean Ozone The mean ozone obtained from SHADOZ ozonesonde insitu measurement; from Nairobi located at 1.27°S and 36.8°E, Malindi at 2.99°S and 40.2°E and Irene at 25.9°S and 28.22°E, stations are displayed... - 2090. 8 2. Lohmann, M.S., et al., Water vapor profile using LEO - LEO Intersatellite Links. Danish Metereological Institute. Atmospheric Ionosphere Research. 3. Jones, R.L. and Mitchell,J.F.B., (1991) Climate change - is water vapor...

Visual Studio 2010 and NET 4 Six-in-One

CERN Document Server

Novak, Istvan; Granicz, Adam

2010-01-01

Complete coverage of all key .NET 4 and Visual Studio 2010 languages and technologies. .NET 4 is Microsoft's latest version of their core programming platform, and Visual Studio 2010 is the toolset that helps write .NET 4 applications. This comprehensive resource offers one-stop shopping for all you need to know to get productive with .NET 4. Experienced author and .NET guru Mitchel Sellers reviews all the important new features of .NET 4, including .NET charting and ASP.NET charting, ASP.NET dynamic data and jQuery, and the addition of F# as a supported package language. The expansive coverag

CARACTERIZACION MORFOMETRICA DE LA GERMINACION DE CHLORAEA CRISPA LINDL. (ORCHIDACEAE) USANDO UN ANALISIS DE IMAGEN

OpenAIRE

Verdugo, Gabriela; Marchant, Jorge; Cisternas, Mauricio; Calderón, Ximena; Peñaloza, Patricia

2007-01-01

Mediante la técnica de análisis de imagen se evaluó las etapas de germinación de un lote de semillas de Chloraea crispa Lindl. Se pudo observar las cuatro etapas de germinación propuestas por Mitchell. La etapa cero corresponde a semillas sin germinar, éstas son alargadas, curvadas en uno de sus extremos, y alcanzan un largo promedio de 0,5 mm. En la etapa uno se aprecia un incremento sólo en ancho debido al crecimiento del embrión, en la etapa dos hay cambios tanto en la forma como en el aum...

H09220: NOS Hydrographic Survey , Mitchell Point to Point Saint John, Alaska, 1971-08-18

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...

The age, growth, and feeding habits of the whitefish Coregonus clupeaformis (Mitchell), of Lake Champlain

Science.gov (United States)

Van Oosten, John; Deason, Hilary J.

1939-01-01

This study is based on 120 whitefish collected in northern Lake Champlain (Missisquoi Bay) in 1930 and on 175 whitefish taken in southern Lake Champlain in 1931. Since the whitefish population had not been exploited commercially after 1912 in United States waters and after 1915 in Canadian waters, its study should be of interest in showing the characteristics of a population practically untouched by man. Data have been presented on length frequencies, age composition, growth, coefficient of condition, sex ratio, standard length-total length relationship, and feeding habits. The data indicated that the Missisquoi Bay population was disturbed (probably by the early fall seining of 1930) before our samples were taken so that the original length distributions no longer existed. The southern Lake Champlain material, however, showed a consistency which indicated that the population had not been exploited to any extensive degree, if at all. When the northern population was compared with the southern the former was found to differ from the latter in the following respects, which differences pointed to some disturbance of the northern stock in the lake 1. By possession of lower modes and smaller grand averages of length. 2. By absence of very old individuals. 3. By absence of a series of equally abundant age groups or, in other words, by the presence of a decided dominance of one or two age groups. 4. By a radical disagreement between the sexes in their age-frequency distribution. 5. By a disagreement between the sexes with respect to maximum lengths attained. All of the differences between the two collections could, however, not be attributed to exploitation. The following characteristics indicated the presence of two distinct populations in the lake 1. Presence of a spawning ground at each end of the lake. 2. Differences in calculated lengths and increments of length (growth rates). 3. Differences in the actual lengths and weights of corresponding age groups at capture. 4. Differences in the coefficient of condition and the length-weight relationship. The discovery of the presence of apparently two separate populations of whitefish in Lake Champlain was wholly unexpected by us.

Sublethal Effects of Neonicotinoid Insecticide on Calling Behavior and Pheromone Production of Tortricid Moths.

Science.gov (United States)

Navarro-Roldán, Miguel A; Gemeno, César

2017-09-01

In moths, sexual behavior combines female sex pheromone production and calling behavior. The normal functioning of these periodic events requires an intact nervous system. Neurotoxic insecticide residues in the agroecosystem could impact the normal functioning of pheromone communication through alteration of the nervous system. In this study we assess whether sublethal concentrations of the neonicotinoid insecticide thiacloprid, that competitively modulates nicotinic acetylcholine receptors at the dendrite, affect pheromone production and calling behavior in adults of three economically important tortricid moth pests; Cydia pomonella (L.), Grapholita molesta (Busck), and Lobesia botrana (Denis & Schiffermüller). Thiacloprid significantly reduced the amount of calling in C. pomonella females at LC 0.001 (a lethal concentration that kills only 1 in 10 5 individuals), and altered its calling period at LC 1 , and in both cases the effect was dose-dependent. In the other two species the effect was similar but started at higher LCs, and the effect was relatively small in L. botrana. Pheromone production was altered only in C. pomonella, with a reduction of the major compound, codlemone, and one minor component, starting at LC 10 . Since sex pheromones and neonicotinoids are used together in the management of these three species, our results could have implications regarding the interaction between these two pest control methods.

Produtividade, incidência de podridão-parda e danos por pragas em pêssego cultivado sob produção integrada

Directory of Open Access Journals (Sweden)

Louise Larissa May de Mio

2011-10-01

Full Text Available O sistema de produção integrada (IP é uma tecnologia que permite aumentar a segurança alimentar, diminuir a aplicação de produtos químicos e o impacto ambiental. Este trabalho comparou dois pomares de pêssego da cultivar Chimarrita, um deles sob produção integrada e o outro sob manejo convencional (CP, situados na Lapa, Paraná, Brasil. O manejo do pomar CP foi o usualmente aplicado pelos produtores locais, e o manejo IP foi o recomendado pelas Normas Brasileiras de Produção Integrada de Pêssego. Durante três safras (2002, 2003 e 2004, produtividade, calibre dos frutos, incidência de podridão parda e danos (causados por Grapholita, Anastrepha, lagartas e outras causas foram quantificados em ambos os sistemas. O número de aplicações de inseticidas e fungicidas no CP foi maior que no IP, tal qual ocorreu com a incidência de podridão-parda. Grapholita molesta, Anastrepha spp. e lagartas foram mantidas sob controle durante as três safras. A produtividade, bem como o tamanho dos frutos, foram maiores no IP, indicando as vantagens desse sistema de produção.

Vers que t’encalça

Directory of Open Access Journals (Sweden)

2017-12-01

Full Text Available Maria Cabrera i CallísSeiem cosint hipotesis sobre el pedrís: ara una cadeneta de veritats ara una cadeneta de mentides, la possibilitat d’entendre’ns i el misteri eucarístic de la carn que és la teva quan te m’allunyes. Se’ns havia fet pura qüestió de perspectiva, el dolor. Ens movíem cautelosos com l’ocell del dubte, i l’ull hipnotic de la ballesta ens sotjava. Ja no apreníem, sols repetíem els noms del guepard, les fluorescencies de l’esquerda als ventricles del cor i la lleganya molesta dels verbs: la fina costura de pell que ens oposa a les pedres. Havíem mastegat un silenci espes com el record de la boira els matins de ser nen; tu marxaves lent com un ramat de bens pel camí de l’aigua i et vas fer bosc. De tant callar varem aprendre a parlar-nos per la follia del buit, i el significat se’ns va tornar mera llei d’escola: una cortesia de les mans, de tant en tant, per obliterar la ferotgia de la raça. Així se’n perdi la mena, de l’estimar-se dels xais!

Classroom management, student-teacher relationships and quality in education

DEFF Research Database (Denmark)

Christensen, Mette Vedsgaard

Knowledge about classroom management is crucial for both teachers’ and students’ well-being and educational success. Studies have indicated that teaching and learning cannot take place effectively in poorly managed classrooms (Jones & Jones, 2012; Marzano, Marzano & Pickering, 2003), and research...... classroom management strategies and teacher-student relations, and by adjusting and applying insights from theory in pedagogical practice, we have introduced new ways of managing learning environments....... unanimously concludes that the competence to establish and maintain good teacher-student relations is a central teacher competence (Nordenbo et al., 2008;Cornelius Whiite, 2007; Mitchell, 2008; Hattie, 2009).This paper presents the findings from recent research and development projects concerning classroom...

Quantum physics of an elementary system in de Sitter space

International Nuclear Information System (INIS)

Rabeie, A.

2012-01-01

We present the coherent states of a scalar massive particle on 1+3-de Sitter space. These states are vectors in Hilbert space, and they are labeled by points in the associated phase space. To do this, we use the fact that the phase space of a scalar massive particle on 1+3-de Sitter space is a cotangent bundle T * (S 3 ) which is isomorphic with the complex sphere S C 3 . Then by using the heat kernel on '' S C 3 '' that was presented by Hall-Mitchell, we construct our coherent states. At the end, by these states we quantize the classical kinetic energy on de Sitter space. (orig.)

FCJ-174 Constructing the contemporary via digital cultural heritage

Directory of Open Access Journals (Sweden)

Torsten Andreasen

2015-06-01

Full Text Available The present article questions the construction of 'the contemporary' in digital cultural heritage archives as specific strategic articulations between past and present with regard to the future. A historical exploration of the discourse of cultural heritage presents three strategic axes supposedly executed by the archive. Via a fourfold problematisation of the notion of the contemporary these axes are further developed with regard to W.J.T. Mitchell and Georges Didi-Huberman's respective readings of Warburg's Atlas Mnemosyne and Malraux's Musée imaginaire. The article finally questions the possibility of ascribing inherent epistemological, existential, empirical and geopolitical force to a given technological archival order.

'The Right Time and the Right Place': An Interview with Jacques Miller.

Science.gov (United States)

Anderson, Warwick

2016-01-01

Professor Jacques F.P. Miller spoke about his career in immunology with Warwick Anderson on 3 February 2014. Born in Nice, France, Miller attended high school and medical school in Sydney, Australia. As a Ph.D. student and postgraduate researcher in London, Miller discovered the immunological function of the thymus gland. Spending the rest of his career at the Walter and Eliza Hall Institute for Medical Research in Melbourne, Miller conducted pioneering research in lymphocyte population dynamics and the mechanisms of the human immune response. With Graham Mitchell, he demonstrated that mammalian lymphocytes can be divided into what became known as T cells and B cells, which interact to produce antibodies.

Dipole moments of the rho meson

International Nuclear Information System (INIS)

Hecht, M.B.; McKellar, B.H.P.

1997-04-01

The electric and magnetic dipole moments (EDM) of the rho meson are calculated using the propagators and vertices derived from the quantum chromodynamics Dyson-Schwinger equations. Results obtained from using the Bethe-Salpeter amplitude studied by Chappell, Mitchell et. al., and Pichowsky and Lee, are compared. The rho meson EDM is generated through the inclusion of a quark electric dipole moment, which is left as a free variable. These results are compared to the perturbative results to obtain a measure of the effects of quark interactions and confinement. The two dipole moments are also calculated using the phenomenological MIT bag model to provide a further basis for comparison

Limnological and botanical characterization of larval habitats for two primary malarial vectors, Anopheles albimanus and Anopheles pseudopunctipennis, in coastal areas of Chiapas State, Mexico.

Science.gov (United States)

Savage, H M; Rejmankova, E; Arredondo-Jim'enez, J I; Roberts, D R; Rodr'iguez, M H

1990-12-01

Field surveys of mosquito breeding sites on the Pacific coastal plain and foothill regions of southern Chiapas, Mexico, were carried out in the dry and wet seasons of 1988. At each site, selected environmental variables were measured or estimated, presence and percent cover of aquatic plants recorded, a water sample collected for subsequent analyses, and 10-30 dips made for mosquito larvae. Logistic regression and discriminant analyses revealed that the occurrence of Anopheles albimanus larvae in both the wet and dry seasons was positively associated with planktonic algae and negatively associated with altitude. In the dry season, An. albimanus larvae were largely restricted to the margins of permanent water bodies and were associated with the presence of floating plants, particularly Eichhornia crassipes. During the wet season An. albimanus larvae were positively associated with emergent plants, particularly seasonally flooded Cyperaceae, and phosphorus (PO4) concentrations, and were negatively associated with abundant filamentous algae, high levels of total suspended solids (TSS) and Salvinia. In the dry season, An. pseudopunctipennis larvae were positively associated with filamentous algae, altitude and the presence of Heteranthera if encountered in a riverine setting, and were negatively associated with water depth. During the wet season, flooding eliminated typical flood plain An. pseudopunctipennis habitats, and larvae were rarely encountered.

Use of biomass sorbents for oil removal from gas station runoff.

Science.gov (United States)

Khan, Eakalak; Virojnagud, Wanpen; Ratpukdi, Thunyalux

2004-11-01

The use of biomass sorbents, which are less expensive and more biodegradable than synthetic sorbents, for oil removal from gas station runoff was investigated. A bench-scale flume experiment was conducted to evaluate the oil removal and retention capabilities of the biomass sorbents which included kapok fiber, cattail fiber, Salvinia sp., wood chip, rice husk, coconut husk, and bagasse. Polyester fiber, a commercial synthetic sorbent, was also experimented for comparison purpose. Oil sorption and desorption tests were performed at a water flow rate of 20 lmin-1. In the oil sorption tests, a 50 mgl(-1) of used engine oil-water mixture was synthesized to simulate the gas station runoff. The mass of oil sorbed for all sorbents, except coconut husk and bagasse, was greater than 70%. Cattail fiber and polyester fiber were the sorbents that provided the least average effluent oil concentrations. Oil selectivity (hydrophobic properties) and physical characteristics of the sorbents are the two main factors that influence the oil sorption capability. The used sorbents from the sorption tests were employed in the desorption tests. Results indicated that oil leached out of all the sorbents tested. Polyester fiber released the highest amount of oil, approximately 4% (mass basis) of the oil sorbed. copyright 2004 Elsevier Ltd.

Overview of physical oceanographic measurements taken during the Mt. Mitchell Cruise to the ROPME Sea Area

International Nuclear Information System (INIS)

Reynolds, R.M.

1993-01-01

The ROPME Sea Area (RSA) is one of the most important commercial waterways in the world. However, the number of direct oceanographic observations is small. An international program to study the effect of the Iraqi oil spill on the environment was sponsored by the ROPME, the Intergovernmental Oceanographic Commission, and the National Oceanic and Atmospheric Administration (NOAA)

Dissecting Tissue-Specific Transcriptomic Responses from Leaf and Roots under Salt Stress in Petunia hybrida Mitchell

Science.gov (United States)

Villarino, Gonzalo H.; Hu, Qiwen; Scanlon, Michael J.; Mueller, Lukas; Mattson, Neil S.

2017-01-01

One of the primary objectives of plant biotechnology is to increase resistance to abiotic stresses, such as salinity. Salinity is a major abiotic stress and increasing crop resistant to salt continues to the present day as a major challenge. Salt stress disturbs cellular environment leading to protein misfolding, affecting normal plant growth and causing agricultural losses worldwide. The advent of state-of-the-art technologies such as high throughput mRNA sequencing (RNA-seq) has revolutionized whole-transcriptome analysis by allowing, with high precision, to measure changes in gene expression. In this work, we used tissue-specific RNA-seq to gain insight into the Petunia hybrida transcriptional responses under NaCl stress using a controlled hydroponic system. Roots and leaves samples were taken from a continuum of 48 h of acute 150 mM NaCl. This analysis revealed a set of tissue and time point specific differentially expressed genes, such as genes related to transport, signal transduction, ion homeostasis as well as novel and undescribed genes, such as Peaxi162Scf00003g04130 and Peaxi162Scf00589g00323 expressed only in roots under salt stress. In this work, we identified early and late expressed genes in response to salt stress while providing a core of differentially express genes across all time points and tissues, including the trehalose-6-phosphate synthase 1 (TPS1), a glycosyltransferase reported in salt tolerance in other species. To test the function of the novel petunia TPS1 allele, we cloned and showed that TPS1 is a functional plant gene capable of complementing the trehalose biosynthesis pathway in a yeast tps1 mutant. The list of candidate genes to enhance salt tolerance provided in this work constitutes a major effort to better understand the detrimental effects of salinity in petunia with direct implications for other economically important Solanaceous species. PMID:28771200

Overview of physical oceanographic measurements taken during the Mt. Mitchell Cruise to the ROPME Sea Area

Energy Technology Data Exchange (ETDEWEB)

Reynolds, R.M.

1993-03-31

The ROPME Sea Area (RSA) is one of the most important commercial waterways in the world. However, the number of direct oceanographic observations is small. An international program to study the effect of the Iraqi oil spill on the environment was sponsored by the ROPME, the Intergovernmental Oceanographic Commission, and the National Oceanic and Atmospheric Administration (NOAA).

Vision to Victory - Space, Mahan, and Mitchell: The Role of the Visionary in Cross-Organizational Innovation

National Research Council Canada - National Science Library

Gaudlip, Fred

2001-01-01

.... MNS change is, by definition, a cross-organizational change. In this light, this thesis expands upon existing military innovation thought by using the concept of strategic vision to investigate the role of the visionary in MNS change...

Vision to Victory - Space, Mahan, and Mitchell: The Role of the Visionary in Cross-Organizational Innovation

Science.gov (United States)

2001-06-01

Strategic Leadership and Decision - Making : Strategic Vision,” 4 December 2000, National Defense University, on-line, Internet, 24 April 2001. “Strategic...and Decision - Making : Strategic Vision,” 4 December 2000, National Defense University, on-line, Internet, 24 April 2001. 22 Vision Communication...297-309. “Strategic Leadership and Decision Making : Strategic Vision.” National Defense University, 4 Dec 00, n.p. On-line. Internet, 24 April

Dissecting Tissue-Specific Transcriptomic Responses from Leaf and Roots under Salt Stress in Petunia hybrida Mitchell

Directory of Open Access Journals (Sweden)

Gonzalo H. Villarino

2017-08-01

Full Text Available One of the primary objectives of plant biotechnology is to increase resistance to abiotic stresses, such as salinity. Salinity is a major abiotic stress and increasing crop resistant to salt continues to the present day as a major challenge. Salt stress disturbs cellular environment leading to protein misfolding, affecting normal plant growth and causing agricultural losses worldwide. The advent of state-of-the-art technologies such as high throughput mRNA sequencing (RNA-seq has revolutionized whole-transcriptome analysis by allowing, with high precision, to measure changes in gene expression. In this work, we used tissue-specific RNA-seq to gain insight into the Petunia hybrida transcriptional responses under NaCl stress using a controlled hydroponic system. Roots and leaves samples were taken from a continuum of 48 h of acute 150 mM NaCl. This analysis revealed a set of tissue and time point specific differentially expressed genes, such as genes related to transport, signal transduction, ion homeostasis as well as novel and undescribed genes, such as Peaxi162Scf00003g04130 and Peaxi162Scf00589g00323 expressed only in roots under salt stress. In this work, we identified early and late expressed genes in response to salt stress while providing a core of differentially express genes across all time points and tissues, including the trehalose-6-phosphate synthase 1 (TPS1, a glycosyltransferase reported in salt tolerance in other species. To test the function of the novel petunia TPS1 allele, we cloned and showed that TPS1 is a functional plant gene capable of complementing the trehalose biosynthesis pathway in a yeast tps1 mutant. The list of candidate genes to enhance salt tolerance provided in this work constitutes a major effort to better understand the detrimental effects of salinity in petunia with direct implications for other economically important Solanaceous species.

Visualising ‘Unacceptable’ Lives? The Moving Story of Hikari to tomo ni (With the Light: Raising an Autistic Child, 2001-2010

Directory of Open Access Journals (Sweden)

Mio Bryce

2014-08-01

Full Text Available In this article we will interrogate the notion of ‘the unacceptable’ by tracing the movement of a particular text – a series of manga novels by Keiko Tobe entitled Hikari to tomo ni (With the Light: Raising an Autistic Child, 2001-2010 – from serialisation in a Japanese women’s magazine, to publication in Japanese as a series of manga novels, to publication in English in book form. In following this text – a narrative of parenting a child with autism from birth to adolescence - through its various contexts of production and reception, we want to raise doubts about a shibboleth of a particular kind of media and cultural studies - that the unacceptability of a text in mainstream popular or political contexts makes it particularly interesting from a scholarly point of view. Our account of Hikari to tomo ni’s movement through its various contexts of publication and reception supports Mitchell and Snyder’s argument that disability politics does not allow easy categorization of representations into ‘straightforward catalogues of “acceptable” and “unacceptable”’ (Mitchell and Snyder, 2001, 213. The context of the original publication of the serial in Japan demonstrates the barriers to publication of manga centring on experiences of disablement. Such stories were seen as commercially unacceptable not only because they seemed difficult to market as entertainment, but also because they required the use of contested language which might draw unprofitable attention. Tobe’s work and its enthusiastic reception by the readers of For Mrs. ultimately overcame publishers’ qualms. Yet the visual strategies adopted by Hikari to tomo ni and the reception of this manga in an English language context demonstrate the way its writer and publishers manage its apparently unacceptable theme.

Assessment of primary school students’ decision-making related to tactical contexts

Directory of Open Access Journals (Sweden)

David Guitiérrez

2012-07-01

Full Text Available The purpose of this study was to assess and understand prior tactical knowledge and game performance as well as the relationship between the different components of game performance in invasion games. The participants (N = 22; girls: 13; boys: 9 were Physical Education students (ages: 11-12 with a low expertise in invasion games (they were selected among those with no other background in invasion games than PE lessons. Their game performance was videotaped, after which measures of motor execution and cognitive components were developed from observational analysis. Decision- making was measured on two levels: a decision-making restricted to the performance of technical-tactical skills; and b decision-making focused on adapting to the offensive tactical contexts of the game. Participants played an eight-minute-long 4-versus-4 generic invasion game. The latter was designed to meet both developmental needs and previous learning, so interference between motor execution ability and decision-making performance was minimized. The findings revealed that these students already had a basic concept of offensive and defensive game situations, both on-the-ball and off-the-ball. No significant differences were found between players’ performance in penetrating-the-defense contexts and in those where they kept ball possession. The findings additionally highlighted the existence of significant relationships between decision-making and skill execution in getting open, tackling, marking off-ball and double teaming. Other links between game performance components are discussed throughout the paper. The importance of assessing game performance taking into account tactical contexts is also supported (Gutiérrez, González, García-López, & Mitchell, 2011, as well as some of the GCA pedagogical principles, e.g. the use of modified games (Oslin & Mitchell, 2006.

Educational outreach to general practitioners reduces children's asthma symptoms: a cluster randomised controlled trial

Directory of Open Access Journals (Sweden)

Sladden Michael

2007-09-01

Full Text Available Abstract Background Childhood asthma is common in Cape Town, a province of South Africa, but is underdiagnosed by general practitioners. Medications are often prescribed inappropriately, and care is episodic. The objective of this study is to assess the impact of educational outreach to general practitioners on asthma symptoms of children in their practice. Methods This is a cluster randomised trial with general practices as the unit of intervention, randomisation, and analysis. The setting is Mitchells Plain (population 300,000, a dormitory town near Cape Town. Solo general practitioners, without nurse support, operate from storefront practices. Caregiver-reported symptom data were collected for 318 eligible children (2 to 17 years with moderate to severe asthma, who were attending general practitioners in Mitchells Plain. One year post-intervention follow-up data were collected for 271 (85% of these children in all 43 practices. Practices randomised to intervention (21 received two 30-minute educational outreach visits by a trained pharmacist who left materials describing key interventions to improve asthma care. Intervention and control practices received the national childhood asthma guideline. Asthma severity was measured in a parent-completed survey administered through schools using a symptom frequency and severity scale. We compared intervention and control group children on the change in score from pre-to one-year post-intervention. Results Symptom scores declined an additional 0.84 points in the intervention vs. control group (on a nine-point scale. p = 0.03. For every 12 children with asthma exposed to a doctor allocated to the intervention, one extra child will have substantially reduced symptoms. Conclusion Educational outreach was accepted by general practitioners and was effective. It could be applied to other health care quality problems in this setting.

Western Gas Sands Project status report

Energy Technology Data Exchange (ETDEWEB)

Atkinson, C.H.

1978-11-30

Progress of government-sponsored projects directed toward increasing gas production from the low-permeability gas sands of the western United States is summarized. A Technology Implementation Plan (TIP) meeting was held at the CER office in Las Vegas, Nevada, October 16--19 to initiate the implementation phase of the Enhanced Gas Recovery (EGR) working group activities. A WGSP Logging Program meeting was conducted on October 24, 1978, at CER offices to define the problems associated with logs in tight gas sands. CER personnel and the project manager attended a two-day course on the fundamentals of core and reservoir analysis in Denver, Colorado, and met with USGS personnel to discuss USGS work on the WGSP. A meeting was held to discuss a contract for coring a Twin Arrow well on the Douglas Creek Arch, Colorado. CER Corporation personnel attended the Geological Society of America Annual Meeting held in Toronto, Canada, October 23--27 and a Gas Stimulation Workshop at Sandia Laboratories in Albuquerque, New Mexico, October 11 and 12 to discuss recent mineback experiments conducted at the Nevada Test Site. Fiscal year 1979 projects initiated by USGS and the Energy Technology Centers and National Laboratories are progressing as scheduled. Mobil Research and Development Corporation fractured zone 8 of the F-31-13G well in Rio Blanco County, Colorado. Colorado Interstate Gas Company poured the concrete pad for the compresser expected to be delivered in December and were laying pipeline between the wells at month end. The Mitchell Energy well, Muse Duke No. 1 was flowing on test at a rate of 2,100 Mcfd and preparations proceeded to fracture the well on November 15 with approximately 1,000,000 gal of fluid and 3,000,000 lb of sand. Terra Tek completed laboratory analyses of cores taken from the Mitchell Energy well.

Response of heat shock protein genes of the oriental fruit moth under diapause and thermal stress reveals multiple patterns dependent on the nature of stress exposure.

Science.gov (United States)

Zhang, Bo; Peng, Yu; Zheng, Jincheng; Liang, Lina; Hoffmann, Ary A; Ma, Chun-Sen

2016-07-01

Heat shock protein gene (Hsp) families are thought to be important in thermal adaptation, but their expression patterns under various thermal stresses have still been poorly characterized outside of model systems. We have therefore characterized Hsp genes and their stress responses in the oriental fruit moth (OFM), Grapholita molesta, a widespread global orchard pest, and compared patterns of expression in this species to that of other insects. Genes from four Hsp families showed variable expression levels among tissues and developmental stages. Members of the Hsp40, 70, and 90 families were highly expressed under short exposures to heat and cold. Expression of Hsp40, 70, and Hsc70 family members increased in OFM undergoing diapause, while Hsp90 was downregulated. We found that there was strong sequence conservation of members of large Hsp families (Hsp40, Hsp60, Hsp70, Hsc70) across taxa, but this was not always matched by conservation of expression patterns. When the large Hsps as well as small Hsps from OFM were compared under acute and ramping heat stress, two groups of sHsps expression patterns were apparent, depending on whether expression increased or decreased immediately after stress exposure. These results highlight potential differences in conservation of function as opposed to sequence in this gene family and also point to Hsp genes potentially useful as bioindicators of diapause and thermal stress in OFM.

Review of the regions and global warming: Impacts and response strategies

International Nuclear Information System (INIS)

Schmandt, J.; Clarkson, J.

1992-01-01

This book is a compilation of essays prepared by the winners and finalists of the 1991 competition for the George and Cynthia Mitchell International Prize for Sustainable Development. In that year, the prize was awarded for outstanding papers on regional implications of global climate change. In the introduction that precedes the 19 essays, the editors establish that the volume focuses on mitigative and adaptive strategies that can be carried out regionally. Because the authors of the essays are from a wide range of locations and affiliations, they present a diverse set of perspectives on the global change issue. The essays are simultaneously scholarly and of uniformly high readability, and should be understandable to a general college-level audience

A dream come true: being President of ASHRM.

Science.gov (United States)

Oppenberg, Andrew A

2014-01-01

During our 33rd Annual Conference of the American Society for Healthcare Risk Management, I had the absolute honor and privilege to thank our 2013 ASHRM board and staff along with the ASHRM membership. On behalf of the membership I extended heartfelt thanks for a job well done to our retiring board members, friends, and colleagues: Faye Shepherd, Ellen Grady-Venditti, Michael Midgley, and Immediate Past President Mary Anne Hilliard. Together, we welcomed 2014 ASHRM board members and witnessed the oath of office to Hala Helm, David Sine, and Sherrill Peters, along with President-Elect Ellen Grady-Venditti and our 2014 President Jacque Mitchell. © 2014 American Society for Healthcare Risk Management of the American Hospital Association.

Gamifier un quiz – Effet graduel sur la performance, l’immersion et la perception de compétence

OpenAIRE

le Maire, Nathalie; Fauconnier, Marie-Laure; Colaux, Catherine; Verpoorten, Dominique

2016-01-01

Dans un contexte marqué par l’arrivée d’une génération pour laquelle les technologies, les réseaux sociaux et les jeux en ligne relèvent de l’évidence (Stein, 2013; Weiler, 2004), le jeu a souvent été qualifié de véhicule d’une pédagogie rendant l’étudiant acteur de son apprentissage, conférant une dimension de défi aux activités éducatives et générant une motivation intrinsèque (Foster, 2008; Kang & Tan, 2008; McFarlane et al., 2002; Mitchell & Savill-Smith, 2004; Papastergiou, 2009). Ce pot...

Euristica del senso. Iconic turn e semiotica dell'immagine

Directory of Open Access Journals (Sweden)

Angela Mengoni

2012-12-01

Full Text Available Taking cue from the epistolary exchange between Gottfried Boehm and Tom Mitchell, the article explores the relationship between the so-called Bildkritik and the visual semiotics. Rather than focusing on the explicit quotation of semiotic concepts or authors, the paper proposes to examine the heuristic approach to the image that characterizes both the analytical dimension of the Bildkritik and the semiotics of the image developed by the French generative semiotics.Taking into account the immanent approach of both traditions and some key-operators (such as ‘iconic difference’ and ‘sémiotique plastique’, the acknowledgement of an active sense-generating capability of the ‘visual’ will emerge as a common feature.

Controle de pragas e doenças, maturação e qualidade de maçãs 'imperial gala' submetidas ao ensacamento Control of insect pests and diseases, maturity and quality of 'imperial gala' apples submitted to bagging

Directory of Open Access Journals (Sweden)

Rosângela Teixeira

2011-06-01

Full Text Available O objetivo deste trabalho foi avaliar a eficiência de diferentes embalagens no ensacamento de maçãs para o controle de pragas e doenças, e sua influência na maturação e qualidade dos frutos, em pomar sob sistema orgânico. O experimento foi conduzido em pomar com plantas de dez anos de idade da cultivar Imperial Gala, sobre porta-enxerto 'Marubakaido', com filtro EM-9, localizado no município de São Joaquim-SC, nas safras 2007/2008 e 2008/2009. Os frutos foram ensacados, após o raleio, com embalagens plásticas transparentes microperfuradas ou de tecido não texturizado (TNT. Frutos não ensacados constituíram o tratamento-controle. Na colheita, os frutos foram avaliados quanto aos danos provocados por mosca-das-frutas (Anastrepha fraterculus, mariposa-oriental (Grapholita molesta, lagarta-enroladeira (Bonagota salubricola e pulgão-lanígero (Eriosoma lanigerum, incidência das doenças sarna-da-macieira (Venturia inaequalis e podridão-amarga (Colletotrichum gloeosporioides, e atributos físico-químicos de maturação e qualidade e teor de cálcio (Ca nos frutos. O ensacamento, independentemente do tipo de material utilizado, reduziu os danos de insetos-praga, porém não foi eficiente no controle de doenças nos frutos. O ensacamento não comprometeu o desenvolvimento de coloração vermelha na casca e o teor de Ca nos frutos. De modo geral, o ensacamento antecipou o processo de maturação, caracterizado pela redução na firmeza de polpa e na textura da casca e da polpa, e pelo aumento no índice de iodoamido.This work was carried out to evaluate the efficiency of different fruit bagging materials to insect pests and diseases control, and its influence on maturity and quality of the fruits in an organic apple orchard. The experiment was conducted in an orchard with ten years old 'Imperial Gala' apple trees grafted on 'Marubakaido' rootstock (with a filter of EM-9, in São Joaquim, State of Santa Catarina, in 2007/08 and 2008

Kinetics of Cr(III) and Cr(VI) removal from water by two floating macrophytes.

Science.gov (United States)

Maine, M A; Hadad, H R; Sánchez, G; Caffaratti, S; Pedro, M C

2016-01-01

The aim of this work was to compare Cr(III) and Cr(VI) removal kinetics from water by Pistia stratiotes and Salvinia herzogii. The accumulation in plant tissues and the effects of both Cr forms on plant growth were also evaluated. Plants were exposed to 2 and 6 mg L(-1) of Cr(III) or Cr(VI) during 30 days. At the end of the experiment, Cr(VI) removal percentages were significantly lower than those obtained for Cr(III) for both macrophytes. Cr(III) removal kinetics involved a fast and a slow component. The fast component was primarily responsible for Cr(III) removal while Cr(VI) removal kinetics involved only a slow process. Cr accumulated principally in the roots. In the Cr(VI) treatments a higher translocation from roots to aerial parts than in Cr(III) treatments was observed. Both macrophytes demonstrated a high ability to remove Cr(III) but not Cr(VI). Cr(III) inhibited the growth at the highest studied concentration of both macrophytes while Cr(VI) caused senescence. These results have important implications in the use of constructed wetlands for secondary industrial wastewater treatment. Common primary treatments of effluents containing Cr(VI) consists in its reduction to Cr(III). Cr(III) concentrations in these effluents are normally below the highest studied concentrations in this work.