93,939 research outputs found
Optical manipulation of arthropod pests and beneficials/ edited by David Ben-Yakir.
No full textIncludes bibliographical references and index."This is the first comprehensive book on the use of light to manipulate insect pests. It includes information on important arthropod pests, pollinators, biocontrol agents and also medical/veterinary pests, and discusses the potential use of optical manipulation to improve the health of plants, domestic animals and humans"--INTRODUCTION AND OVERVIEW / D. Ben-Yakir -- LIGHT IN THE AGRICULTURAL ENVIRONMENT / D. Ben-Yakir & G. Horváth -- ARTHROPOD VISION / D. Ben-Yakir, U.T. Lim & G. Horváth -- DIRECT AND INDIRECT EFFECTS OF UV RADIATION / D. Ben-Yakir -- VISUAL INTERACTIONS BETWEEN PLANTS AND ARTHROPODS / S. Lev-Yadun & D. Ben-Yakir -- DETERRENCE OF PESTS / X. Martini, J. Funderburk & D. Ben-Yakir -- ATTRACTION OF PESTS / D. Ben-Yakir, G. Horváth & R. van Tol -- ATTRACTION OF BENEFICIALS / M. Shimoda & D. Ben-Yakir -- MANIPULATION OF CHRONOBIOLOGY / A. Abrieux, D. Gottlieb & J. C. Chiu -- CURRENT STATUS AND FUTURE PROSPECTS / D. Ben-Yakir.1 online resource (xviii, 172 pages)
Wetting: Theory and Experiment
No full textComitato organizzatore: Amy Novick-Cohen, Alexander Nepomnyashchy, Leonid Pismen.
Comitato Scientifico: M. Ben Amar, S. Davis, L. Giacomelli, G. Gruen, J. King, D. Mukamel, A. Nepomnyashchy, A. Novick-Cohen, L. Pismen, Y. Pomeau, D. Quere.
The goal of the conference is to exchange information and discussion among numerous people interested in this field and coming from various disciplines, with an emphasis on the analytical and the asymptotic, the theoretical as well as the experimental
Yefet ben 'Ali's commentary on the Hebrew text of the Book of Job I-X
No full textThis thesis is a critical edition of the Judeo-Arabic
commentary on the Hebrew text of the Book of Job by one of
the greatest Karaites of his age (second half of the tenth
century A. D.), Yefet Ben 'Ali the Karaite.
An examination of the photocopies and microfilms of the
original Manuscripts of Yefet Ben 'Ali written in the XIth,
XIV-XVIIth, XVth and XVIth centuries resulted in a delimitation
of the number of chapters in this edition i.e. chapters I-X.
None of the four Manuscripts is complete and I have tried to
complete the presentation of the first ten chapters of Yefet's
commentary on the Book of Job by filling in the gaps of the
master copy which I used (Ms. A., Or. 2509 B. M. ) from the other
Manuscripts. I used it as a main text because it is almost
a complete copy compared with the others, as far as the first
ten chapters are concerned. The four Manuscripts which I used
are housed in the British Library in London.
This edition is prefaced by an introduction, comprising
a discussion of the information we possess about Yefet's life
in Basrah and Jerusalem, with reference to his works in general
and the authenticity of his work on the Book of Job in particular.
This is followed by a description and analysis of the commentary,
discussing the method used by the commentator, and how he made
it possible for large numbers of Jews in non-Arabic speaking
countries to make free use of his interpretations of biblical
texts allied to the Karaite theological viewpoint and its
relationship to Mu'tazilite views. There follows an analysis
of the language used by Yefet in his text and exegesis, i.e.
morphology, orthography and so on.
A comparison is then made with Saadia Gaon, including a brief
discussion of the language and exegesis of the two scholars which
deals with the fundamental characteristics of Judeo and classical
Arabic; in addition, notes on the text are appended in which attention
will be drawn to Yefet's characteristic vagueness in interpreting
the Hebrew text of the Book of Job.
Special attention is paid to the vowels in each of the Manuscripts, and
differences between the Manuscripts are footnoted throughout the
text of this edition.
The appendix takes cognisance of M. E., i.e. Opp. Add. 4.165
of the Bodleian Library, listing fully the differences between it and
the printed text of this edition
Insecticidal and anti-appetent activities of four Chrysanthemum species against Tribolium confusum Du Val (Coleoptera: Tenebrionidae)
No full textInsect pests are one of the major factors limiting the production and the storage of agricultural products. The use of synthetic pesticides limits the damage of these pests. However, the effectiveness of these products is continually eroded by the development of resistance in these pests and serious health and ecological disadvantages were detected. It is clear that there is an urgent need for alternative control measures, which must be active against the pests, safe to humans and environmentally friendly. Evaluation of local plants as sources of protectants is one of the promising ways to fulfil this need. In this study the essential oil of four Chrysanthemum species (C. macrotum, C. trifurcatum, C. segetum and C. fuscatum) were evaluated for their insecticidal activity against Tribolium confusum using tow methods: fumigation and consumption. The essential was diluted in acetone to obtain the concentration of 1%. For the fumigant activity, 100 μl of the solution was applied on filter paper (1x2.5 cm), after evaporating the solvent, each filter paper was placed on the underside of the screw cap of a glass vial and was screwed tightly onto the vial containing ten adults of Tribolium confusum. Concerning the evaluation of the anti-appetent activity, 5 μl of each Chrysanthemum species essential oil were applied on flour disc (95% wheat semolina and 5% beer yeast). The control received only acetone and five replicates were set up for each treatment and control. The results showed that essential oil obtained from flowers of C. macrotum and those from leaves of C. trifurcatum have the highest fumigant activity and cause respectively the mortality of 48 and 40% against adults of T. confusum. The study of anti-appetent effect on larvae of T. confusum showed that C. segetum flowers essential oil has the significant feeding deterrent index (92.45±4.61) followed by the leaves essential oil obtained from C. fuscatum (71.20±19.22), without having a significant mortality on this larvae.
The study of essential oil composition of the four Chrysanthemum species highlighted their richness on mono and sesqueterpenes that are known for their insecticidal activity.
Though these findings are preliminary, they could represent the basis for further investigations on the questions raised in this work. In particular, additional research is needed to investigate the susceptibility of other stages of the insect life, such as pupae and eggs and to improve our understanding of how mono- and sesquiterpenoids act on insects. Practically, in view of a possible use of the most active mono- and sesquiterpenoids, it should be pointed out that longer exposure periods could be needed to bridge the tolerant phases of insects, some of which could be present at the time of application
Plenary session at Rollins of Charles M. Blow, Ben Brotemarkle, and Dr. Walter D. Greason
No full textCharles M. Blow, Ben Brotemarkle, and Dr. Walter D. Greasonhttps://scholarship.rollins.edu/communities_conference/1086/thumbnail.jp
Precision measurement of D meson mass differences
No full textUsing three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass differences are made together with a measurement of the D 0 mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected in pp collisions at 7 TeV. Using the decay D 0 → K + K − K − π +, the D 0 mass is measured to be M(D0)=1864.75±0.15(stat)±0.11(syst)MeV/c2.
The mass differences
M(D+)−M(D0)=4.76±0.12(stat)±0.07(syst)MeV/c2,M(Ds)−M(D+)=98.68±0.03(stat)±0.04(syst)MeV/c2
are measured using the D 0 → K + K − π + π − and D+(s)→K+K−π+ mode
Study of DsJ decays to D+KS0 and D0K+ final states in pp collisions
No full textA study of D+K0S and D0K+ final states is performed in a sample of 1.0 fb−1 of pp collision data collected at a centre-of-mass energy of s√=7 TeV with the LHCb detector. We confirm the existence of the D∗s1(2700)+ and D∗sJ(2860)+ excited states and measure their masses and widths to be
m(D∗s1(2700)+) = 2709.2±1.9(stat)±4.5(syst) MeV/c2, Γ(D∗s1(2700)+) = 115.8±7.3(stat)±12.1(syst) MeV/c2, m(D∗sJ(2860)+) = 2866.1±1.0(stat)±6.3(syst) MeV/c2, Γ(D∗sJ(2860)+) = 69.9±3.2(stat)±6.6(syst) MeV/c2
1ST MEASUREMENT OF GAMMA(D(S)(+)-]MU+NU)/GAMMA(D(S)(+)-]PHI-PI+)
No full textComplete Author List:
ACOSTA D, ATHANAS M, MASEK G, PAAR H, BEAN A, GRONBERG J, KUTSCHKE R, MENARY S, MORRISON RJ, NAKANISHI S, NELSON HN, NELSON TK, RICHMAN JD, RYD A, TAJIMA H, SCHMIDT D, SPERKA D, WITHERELL MS, PROCARIO M, YANG S, BALEST R, CHO K, DAOUDI M, FORD WT, JOHNSON DR, LINGEL K, LOHNER M, RANKIN P, SMITH JG, ALEXANDER JP, BEBEK C, BERKELMAN K, BESSON D, BROWDER TE, CASSEL DG, CHO HA, COFFMAN DM, DRELL PS, EHRLICH R, GALIK RS, GARCIASCIVERES M, GEISER B, GITTELMAN B, GRAY SW, HARTILL DL, HELTSLEY BK, JONES CD, JONES SL, KANDASWAMY J, KATAYAMA N, KIM PC, KREINICK DL, LUDWIG GS, MASUI J, MEVISSEN J, MISTRY NB, NG CR, NORDBERG E, OGG M, PATTERSON JR, PETERSON D, RILEY D, SALMAN S, SAPPER M, WORDEN H, WURTHWEIN F, AVERY P, FREYBERGER A, RODRIGUEZ J, STEPHENS R, YELTON J, CINABRO D, HENDERSON S, KINOSHITA K, LIU T, SAULNIER M, SHEN F, WILSON R, YAMAMOTO H, ONG B, SELEN M, SADOFF AJ, AMMAR R, BALL S, BARINGER P, COPPAGE D, COPTY N, DAVIS R, HANCOCK N, KELLY M, KWAK N, LAM H, KUBOTA Y, LATTERY M, NELSON JK, PATTON S, PERTICONE D, POLING R, SAVINOV V, SCHRENK S, WANG R, ALAM MS, KIM IJ, NEMATI B, ONEILL JJ, SEVERINI H, SUN CR, ZOELLER MM, CRAWFORD G, DAUBENMIER CM, FULTON R, FUJINO D, GAN KK, HONSCHEID K, KAGAN H, KASS R, LEE J, MALCHOW R, MORROW F, SKOVPEN Y, SUNG M, WHITE C, WHITMORE J, WILSON P, BUTLER F, FU X, KALBFLEISCH G, LAMBRECHT M, ROSS WR, SKUBIC P, SNOW J, WANG PL, WOOD M, BORTOLETTO D, BROWN DN, FAST J, MCILWAIN RL, MIAO T, MILLER DH, MODESITT M, SCHAFFNER SF, SHIBATA EI, SHIPSEY IPJ, WANG PN, BATTLE M, ERNST J, KROHA H, ROBERTS S, SPARKS K, THORNDIKE EH, WANG CH, DOMINICK J, SANGHERA S, SHELKOV V, SKWARNICKI T, STROYNOWSKI R, VOLOBOUEV I, ZADOROZHNY P, ARTUSO M, HE D, GOLDBERG M, HORWITZ N, KENNETT R, MONETI GC, MUHEIM F, MUKHIN Y, PLAYFER S, ROZEN Y, STONE S, THULASIDAS M, VASSEUR G, ZHU G, BARTELT J, CSORNA SE, EGYED Z, JAIN V, SHELDON P, AKERIB DS, BARISH B, CHADHA M, CHAN S, COWEN DF, EIGEN G, MILLER JS, OGRADY C, URHEIM J, WEINSTEIN A
Synthesis of Unnatural Alfa-N-linked Glycopeptides with Potential Antifreeze Activity
No full textThe synthesis of neo-glycoconjugates has been gaining much attention in recent years due to the relevance of glycopeptides and glycoproteins in many biological processes.[i] Our group has been actively dedicating its efforts to the synthesis of α-N-linked glycosylamides and glycopeptides.[ii] α-N-linked glycopeptides are unnatural molecules, since they display an α linkage between the peptide side chain and the sugar moiety, unlike natural glycopeptides which connect the peptide to the glycan through a β-N-glycosidic bond. This novel type of glycosylation of peptides could introduce modifications that can mimic and/or interfere with molecular recognition events.[iii] Direct glycosylation of peptide chains is not viable for the synthesis of molecules with α-N-linked configuration, since the corresponding α-glycosyl amines isomerise to the β-anomers. Only very recently Nα-Fmoc-protected glycosyl amino acids have been efficiently and stereoselectively synthesized and linearly incorporated into a peptide sequence.[iii] In the present paper these novel building blocks have been employed for the synthesis of complex structures that resemble antifreeze glycopeptides (Figure 1).[iv] These sequences were prepared using solid phase synthesis with Fmoc protocol, experimenting with different conditions and also using microwave assisted solid phase synthesis, in an effort to enhance the reactivity of our unnatural building block. The α-N-linked glycopeptides were obtained with modest yields, their secondary structure was assessed by circular dichroism and their antifreeze properties were evaluated in the group of Prof. Robert N. Ben. Despite the fact that our compounds do not show significant antifreeze activity, this work constitutes the first attempt towards the synthesis of complex α-N-linked glycopeptides and has been useful to understand the behaviour, sometimes unexpected, of these molecules, in terms of reactivity and stability. [i] D. P. Gamblin, E. M. Scanlan, B. G. Davis, Chem. Rev. 2009, 109, 131-163. [ii] a) F. Nisic, A. Bernardi, Carbohydr. Res. 2011,346, 465-71. b) C. Colombo, A. Bernardi,Eur. J. Org. Chem. 2011, 3911–3919. [iii] F. Marcelo, F. J. Cañada, S. André, C. Colombo, F. Doro, H. J. Gabius, A. Bernardi, J. Jiménez-Barbero. Organic & Biomolecular Chemistry 2012, DOI: 10.1039/C2OB07135E. [iv] a) Garner, J.; Harding, M. M. ChemBioChem 2010, 11 2489-2498. b) Leclere, M; Kwok, K. B.; Luke K. W.; Allan, D. S.; Ben, R. N. Bioconjugate Chem. 2011, 22, 1804-1810
Attitudes toward sexuality in the Book of Ben Sira
No full textThe fact that Ben Sira seemingly has a negative attitude towards women or femininity can easily lead to the assumption that the work has a negative attitude toward sexuality. However, this thesis will seek to demonstrate that the author's view on sexuality is complex, subtle, and depends on the context of the individual sayings. First of all we have to make a distinction between the attitudes of the writer of the original Hebrew text of the book and that of the Greek translator. The two texts, produced in different social settings, circumstances, times and places, differ substantially at times in regard to sexuality. Therefore it is essential to treat them separately and to compare them. In addition, the Book of Ben Sira, the longest Jewish wisdom book, is a complex combination of carefully composed wisdom poems that structure the whole work, and of teachings on everyday issues including marriage, family life, self-control, desires and passions, and sexual promiscuity. The openness about issues of eroticism that characterizes some of the poems concerning personified female wisdom is unprecedented in the wisdom writings of Second Temple Judaism. Similarly, the sage dedicates a greater number of passages than other wisdom books, to the discussion of social relations especially in regard to family. In so doing his regular point of departure seems to be what benefits or damages these relations mean, and whether they bring disgrace to a person, especially through sexuality. These all have bearings on the author’s and translator’s views of sexuality, including the position a person or situation under discussion might have in the sage’s social value system. Therefore the thesis examines the wisdom poems, and all sayings that concern sexuality found in discussions of passions, relations with parents, daughters and sons, wives and husbands, and warnings against sexual wrongdoing, including prostitution and adultery. All this is done with a special regard to the differences between the Hebrew original text and the Greek translation
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