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Increasing the Brønsted acidity of Ph2PO2H by the Lewis acid B(C6F5)3. Formation of an eight-membered boraphosphinate ring [Ph2POB(C6F5)2O]2.

Chemical communications (Cambridge, England)

Kather R, Rychagova E, Sanz Camacho P, Ashbrook SE, Woollins JD, Robben L, Lork E, Ketkov S, Beckmann J.
PMID: 27538254
Chem Commun (Camb). 2016 Sep 21;52(73):10992-5. doi: 10.1039/c6cc06102h. Epub 2016 Aug 18.

Autoprotolysis of the metastable acid (C6F5)3BOPPh2OH, prepared in situ by the reaction of the rather weak Brønsted acid Ph2PO2H with the strong Lewis acid B(C6F5)3, gave rise to the formation of the eight-membered ring [Ph2POB(C6F5)2O]2 and C6F5H. The conjugate...

Graphene-Modified Interface Controls Transition from VCM to ECM Switching Modes in Ta/TaOx Based Memristive Devices.

Advanced materials (Deerfield Beach, Fla.)

Lübben M, Karakolis P, Ioannou-Sougleridis V, Normand P, Dimitrakis P, Valov I.
PMID: 26456484
Adv Mater. 2015 Oct 28;27(40):6202-7. doi: 10.1002/adma.201502574. Epub 2015 Sep 10.

By modification of the electrode-solid-electrolyte interface with graphene, transit from valence change memories (VCM) to electrochemical metallization memories (ECM) in the cell Ta(C)/Ta2 O5 /Pt is demonstrated, thus, bridging both mechanisms. The ECM operation is discussed in the light...

Influence of Environmental Factors on Phage-Bacteria Interaction and on the Efficacy and Infectivity of Phage P100.

Frontiers in microbiology

Fister S, Robben C, Witte AK, Schoder D, Wagner M, Rossmanith P.
PMID: 27516757
Front Microbiol. 2016 Jul 28;7:1152. doi: 10.3389/fmicb.2016.01152. eCollection 2016.

When using bacteriophages to control food-borne bacteria in food production plants and processed food, it is crucial to consider that environmental conditions influence their stability. These conditions can also affect the physiological state of bacteria and consequently host-virus interaction...

The use of oral fluids to monitor key pathogens in porcine respiratory disease complex.

Porcine health management

Hernandez-Garcia J, Robben N, Magnée D, Eley T, Dennis I, Kayes SM, Thomson JR, Tucker AW.
PMID: 28405463
Porcine Health Manag. 2017 Apr 05;3:7. doi: 10.1186/s40813-017-0055-4. eCollection 2017.

BACKGROUND: The usefulness of oral fluid (OF) sampling for surveillance of infections in pig populations is already accepted but its value as a tool to support investigations of porcine respiratory disease complex (PRDC) has been less well studied. This...

Statistical properties of linear-hyperbranched graft copolymers prepared via "hypergrafting" of AB(m) monomers from linear B-functional core chains: A molecular dynamics simulation.

The Journal of chemical physics

Rabbel H, Frey H, Schmid F.
PMID: 26723610
J Chem Phys. 2015 Dec 28;143(24):243125. doi: 10.1063/1.4935371.

The reaction of ABm monomers (m = 2, 3) with a multifunctional Bf-type polymer chain ("hypergrafting") is studied by coarse-grained molecular dynamics simulations. The ABm monomers are hypergrafted using the slow monomer addition strategy. Fully dendronized, i.e., perfectly branched...

Apoptosis in Untreated and Hormone-Treated Prostate Cancer of Various Histological Types.

Pathology oncology research : POR

Szende B, Lübben T, Romics, Vass L.
PMID: 11173610
Pathol Oncol Res. 1996;2(4):239-241. doi: 10.1007/BF02904817.

A total of 102 (66 untreated and 36 hormone-treated) prostate cancers were examined histologically in order to determine their histological grade and the percentage of apoptotic tumor cells. The less differentiated the tumors were, the higher the spontaneous apoptotic...

Analysis of the Topology of the Chromophore Binding Pocket of Phytochromes by Variation of the Chromophore Substitution Pattern.

Angewandte Chemie (International ed. in English)

Robben U, Lindner I, Gärtner W, Schaffner K.
PMID: 11268068
Angew Chem Int Ed Engl. 2001 Mar 16;40(6):1048-1050. doi: 10.1002/1521-3773(20010316)40:6<1048::aid-anie10480>3.0.co;2-9.

No abstract available.

First Mixed Fluoro-Chloro Group 4 Organometallics: Synthesis and Spectroscopic and Structural Characterization of [{(C(5)Me(5))ZrF(2)Cl}(4)], [{(C(5)Me(5))HfF(2)Cl}(4)], [(C(5)Me(5))(4)Zr(4)(&mgr;-F)(2)(&mgr;-F(2))(2)(&mgr;-Cl)(2)Cl(4)], [(C(5)Me(5))(4)Hf(4)(&mgr;-F)(2)(&mgr;-F(2))(2)(&mgr;-Cl)(2)Cl(4)], [(C(5)Me(4)Et)(2)ZrClF], and [(C(5)Me(5))(2)HfClF].

Inorganic chemistry

Murphy EF, Lübben T, Herzog A, Roesky HW, Demsar A, Noltemeyer M, Schmidt HG.
PMID: 11666158
Inorg Chem. 1996 Jan 03;35(1):23-29. doi: 10.1021/ic950822a.

Tetrameric [{(C(5)Me(5))MF(3)}(4)] (M = Zr, Hf) react smoothly with Me(3)SiCl in CH(2)Cl(2) at room temperature to give [{(C(5)Me(5))ZrF(2)Cl}(4)] (1) and [{(C(5)Me(5))HfF(2)Cl}(4)] (2), respectively, in high yield. Treatment of [{(C(5)Me(5))MF(3)}(4)] (M = Zr, Hf) with Me(2)AlCl in toluene gives mixtures...

Postmarketing surveillance study of the efficacy and tolerability of pioglitazone in insulin-resistant patients with type 2 diabetes mellitus in general practice.

Clinical drug investigation

Schöfl C, Lübben G.
PMID: 17536886
Clin Drug Investig. 2003;23(11):725-34. doi: 10.2165/00044011-200323110-00005.

OBJECTIVE: To evaluate the efficacy and tolerability of pioglitazone in patients with type 2 diabetes mellitus treated in general practice settings.DESIGN AND SETTING: This was a postmarketing surveillance study involving 2537 primary-care physicians throughout Germany.PATIENTS AND INTERVENTIONS: A total...

Professor Dr. Richard Bruynoghe: A 1951 overview of his bacteriophage research spanning three decades.

Bacteriophage

Lavigne R, Robben J.
PMID: 22666651
Bacteriophage. 2012 Jan 01;2(1):1-4. doi: 10.4161/bact.20024.

In 1921, Richard Bruynoghe and his student Joséph Maisin published on the first use of bacteriophages in a phage therapy context. At that time, Bruynoghe (a medical doctor) was affiliated as a professor at the KU Leuven (Belgium) for...

Correlation between charge-transfer and rotation of C60 on WO2/W(110).

Nanoscale

Bozhko SI, Krasnikov SA, Lübben O, Murphy BE, Radican K, Semenov VN, Wu HC, Levchenko EA, Chaika AN, Sergeeva NN, Shvets IV.
PMID: 23467592
Nanoscale. 2013 Apr 21;5(8):3380-6. doi: 10.1039/c3nr34087b. Epub 2013 Mar 07.

Understanding molecular switching between different charge states is crucial to further progress in molecule-based nano-electronic devices. Herein we have employed scanning tunnelling microscopy to visualize different charge states of a single C60 molecule within a molecular layer grown on...

The True Exercise of Leadership: a Blend of Balance, Endurance and Resistance Training?.

Military medicine

Robben P, Neff LA.
PMID: 30793184
Mil Med. 2019 May 01;184(5):115-116. doi: 10.1093/milmed/usz011.

The exercise of leadership demands leaders draw upon multiple capabilities in order to simultaneously enforce standards and achieve mission success while successfully nurturing candor and engagement within the organization. The following case highlights one officer's challenge related to balancing...

Showing 1 to 12 of 176 entries