نتایج جستجو برای: chiral media

تعداد نتایج: 317554  

Journal: :the iranian journal of pharmaceutical research 0
farrin sattary javid pharmaceutical chemistry department, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. alireza shafaati pharmaceutical chemistry department, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. afshin zarghi pharmaceutical chemistry department, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

one of the problems encountered in ce separations of basic compounds is the adsorption of analytes onto the negatively charged capillary wall which could lead to poor repeatability of migration time and peak area. additionally, separation of enantiomers of chiral of basic drugs is commonly carried out in low ph buffer which contributes to strong ionic interaction of the cationic drug ions with ...

Journal: :Organic letters 2006
Rienk Eelkema Ben L Feringa

[structure: see text] A new system for the double amplification of the molecular chirality of simple chiral amines in achiral liquid crystalline media is described. It involves a conformationally flexible phosphoric acid based receptor that by binding to chiral amines induces chirality in the liquid crystalline matrix. Efficient cholesteric phase formation was shown by several chiral amines tha...

Journal: :Physical review letters 2000
Fischer Wiersma Righini Champagne Buckingham

Second-order nonlinear optical frequency conversion in isotropic systems is only dipole allowed for sum- and difference-frequency generation in chiral media. We develop a single-center chiral model of the three-wave mixing (sum-frequency generation) nonlinearity and estimate its magnitude. We also report results from ab initio calculations and from three- and four-wave mixing experiments in sup...

Journal: :Physical review letters 2011
T Aaltonen B Álvarez González S Amerio D Amidei A Anastassov A Annovi J Antos G Apollinari J A Appel A Apresyan T Arisawa A Artikov J Asaadi W Ashmanskas B Auerbach A Aurisano F Azfar W Badgett A Barbaro-Galtieri V E Barnes B A Barnett P Barria P Bartos M Bauce G Bauer F Bedeschi D Beecher S Behari G Bellettini J Bellinger D Benjamin A Beretvas A Bhatti M Binkley D Bisello I Bizjak K R Bland B Blumenfeld A Bocci A Bodek D Bortoletto J Boudreau A Boveia B Brau L Brigliadori A Brisuda C Bromberg E Brucken M Bucciantonio J Budagov H S Budd S Budd K Burkett G Busetto P Bussey A Buzatu C Calancha S Camarda M Campanelli M Campbell F Canelli A Canepa B Carls D Carlsmith R Carosi S Carrillo S Carron B Casal M Casarsa A Castro P Catastini D Cauz V Cavaliere M Cavalli-Sforza A Cerri L Cerrito Y C Chen M Chertok G Chiarelli G Chlachidze F Chlebana K Cho D Chokheli J P Chou W H Chung Y S Chung C I Ciobanu M A Ciocci A Clark G Compostella M E Convery J Conway M Corbo M Cordelli C A Cox D J Cox F Crescioli C Cuenca Almenar J Cuevas R Culbertson D Dagenhart N d'Ascenzo M Datta P de Barbaro S De Cecco G De Lorenzo M Dell'Orso C Deluca L Demortier J Deng M Deninno F Devoto M d'Errico A Di Canto B Di Ruzza J R Dittmann M D'Onofrio S Donati P Dong M Dorigo T Dorigo K Ebina A Elagin A Eppig R Erbacher D Errede S Errede N Ershaidat R Eusebi H C Fang S Farrington M Feindt J P Fernandez C Ferrazza R Field G Flanagan R Forrest M J Frank M Franklin J C Freeman Y Funakoshi I Furic M Gallinaro J Galyardt J E Garcia A F Garfinkel P Garosi H Gerberich E Gerchtein S Giagu V Giakoumopoulou P Giannetti K Gibson C M Ginsburg N Giokaris P Giromini M Giunta G Giurgiu V Glagolev D Glenzinski M Gold D Goldin N Goldschmidt A Golossanov G Gomez G Gomez-Ceballos M Goncharov O González I Gorelov A T Goshaw K Goulianos A Gresele S Grinstein C Grosso-Pilcher R C Group J Guimaraes da Costa Z Gunay-Unalan C Haber S R Hahn E Halkiadakis A Hamaguchi J Y Han F Happacher K Hara D Hare M Hare R F Harr K Hatakeyama C Hays M Heck J Heinrich M Herndon S Hewamanage D Hidas A Hocker W Hopkins D Horn S Hou R E Hughes M Hurwitz U Husemann N Hussain M Hussein J Huston G Introzzi M Iori A Ivanov E James D Jang B Jayatilaka E J Jeon M K Jha S Jindariani W Johnson M Jones K K Joo S Y Jun T R Junk T Kamon P E Karchin Y Kato W Ketchum J Keung V Khotilovich B Kilminster D H Kim H S Kim H W Kim J E Kim M J Kim S B Kim S H Kim Y K Kim N Kimura M Kirby S Klimenko K Kondo D J Kong J Konigsberg A V Kotwal M Kreps J Kroll D Krop N Krumnack M Kruse V Krutelyov T Kuhr M Kurata S Kwang A T Laasanen S Lami S Lammel M Lancaster R L Lander K Lannon A Lath G Latino I Lazzizzera T LeCompte E Lee H S Lee J S Lee S W Lee S Leo S Leone J D Lewis C-J Lin J Linacre M Lindgren E Lipeles A Lister D O Litvintsev C Liu Q Liu T Liu S Lockwitz N S Lockyer A Loginov D Lucchesi J Lueck P Lujan P Lukens G Lungu J Lys R Lysak R Madrak K Maeshima K Makhoul P Maksimovic S Malik G Manca A Manousakis-Katsikakis F Margaroli C Marino M Martínez R Martínez-Ballarín P Mastrandrea M Mathis M E Mattson P Mazzanti K S McFarland P McIntyre R McNulty A Mehta P Mehtala A Menzione C Mesropian T Miao D Mietlicki A Mitra H Miyake S Moed N Moggi M N Mondragon C S Moon R Moore M J Morello J Morlock P Movilla Fernandez A Mukherjee Th Muller P Murat M Mussini J Nachtman Y Nagai J Naganoma I Nakano A Napier J Nett C Neu M S Neubauer J Nielsen L Nodulman O Norniella E Nurse L Oakes S H Oh Y D Oh I Oksuzian T Okusawa R Orava L Ortolan S Pagan Griso C Pagliarone E Palencia V Papadimitriou A A Paramonov J Patrick G Pauletta M Paulini C Paus D E Pellett A Penzo T J Phillips G Piacentino E Pianori J Pilot K Pitts C Plager L Pondrom K Potamianos O Poukhov F Prokoshin A Pronko F Ptohos E Pueschel G Punzi J Pursley A Rahaman V Ramakrishnan N Ranjan I Redondo P Renton M Rescigno F Rimondi L Ristori A Robson T Rodrigo T Rodriguez E Rogers S Rolli R Roser M Rossi F Rubbo F Ruffini A Ruiz J Russ V Rusu A Safonov W K Sakumoto Y Sakurai L Santi L Sartori K Sato V Saveliev A Savoy-Navarro P Schlabach A Schmidt E E Schmidt M P Schmidt M Schmitt T Schwarz L Scodellaro A Scribano F Scuri A Sedov S Seidel Y Seiya A Semenov F Sforza A Sfyrla S Z Shalhout T Shears P F Shepard M Shimojima S Shiraishi M Shochet I Shreyber A Simonenko P Sinervo A Sissakian K Sliwa J R Smith F D Snider A Soha S Somalwar V Sorin P Squillacioti M Stancari M Stanitzki R St Denis B Stelzer O Stelzer-Chilton D Stentz J Strologas G L Strycker Y Sudo A Sukhanov I Suslov K Takemasa Y Takeuchi J Tang M Tecchio P K Teng J Thom J Thome G A Thompson E Thomson P Ttito-Guzmán S Tkaczyk D Toback S Tokar K Tollefson T Tomura D Tonelli S Torre D Torretta P Totaro M Trovato Y Tu F Ukegawa S Uozumi A Varganov F Vázquez G Velev C Vellidis M Vidal I Vila R Vilar J Vizán M Vogel G Volpi P Wagner R L Wagner T Wakisaka R Wallny S M Wang A Warburton D Waters M Weinberger W C Wester B Whitehouse D Whiteson A B Wicklund E Wicklund S Wilbur F Wick H H Williams J S Wilson P Wilson B L Winer P Wittich S Wolbers H Wolfe T Wright X Wu Z Wu K Yamamoto J Yamaoka T Yang

We report the most sensitive direct search for pair production of fourth-generation bottomlike chiral quarks (b') each decaying promptly to tW. We search for an excess of events with an electron or muon, at least five jets (one identified as due to a b or c quark), and an imbalance of transverse momentum by using data from pp collisions collected by the CDF II detector at Fermilab with an integ...

2006
R. J. Baxter

It has been known for some time that the Boltzmann weights of the chiral Potts model can be parametrized in terms of hyperelliptic functions, but as yet no such parametrization has been applied to the partition and correlation functions. Here we show that for N = 3 the function S(t p) that occurs in the recent calculation of the order parameters can be expressed quite simply in terms of such a ...

Journal: :Molecules 2017
Márcio S Silva

Nuclear magnetic resonance (NMR) is a powerful tool for the elucidation of chemical structure and chiral recognition. In the last decade, the number of probes, media, and experiments to analyze chiral environments has rapidly increased. The evaluation of chiral molecules and systems has become a routine task in almost all NMR laboratories, allowing for the determination of molecular connectivit...

Journal: :Chemical communications 2011
Keiji Hirose Yuka Yachi Yoshito Tobe

Based on non-linear response in phase transition events exhibiting a sharp transmittance change, an intelligent chiral sensor capable of chirality amplification in aqueous media was designed and constructed as poly(N-isopropylacrylamide) having chiral pseudo-18-crown-6. Both sensitivity and selectivity of the sensor surmount the limitation due to the law of mass action.

1996
H. Ammari

This paper deals with the scattering problem by an inhomogeneous object embedded in a chiral medium. A combined Hilbert space and integral equation method is employed to prove the existence and uniqueness of the solutions to the scattering problem. It is shown that the classical Silver-M uller radiation condition remains valid in chiral media.

2008
Chao Zhang Jun Cui

We investigate the reflection properties of electromagnetic/optical waves in isotropic chiral media. When the chiral parameter is strong enough, we show that an unusual negative reflection occurs at the interface of the chiral medium and a perfectly conducting plane, where the incident wave and one of reflected eigenwaves lie in the same side of the boundary normal. Using such a property, we fu...

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