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Showing 1 to 12 of 21 entries
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The formation of a large summertime Saharan dust plume: Convective and synoptic-scale analysis.

Journal of geophysical research. Atmospheres : JGR

Roberts AJ, Knippertz P.
PMID: 25844277
J Geophys Res Atmos. 2014 Feb 27;119(4):1766-1785. doi: 10.1002/2013JD020667. Epub 2014 Feb 26.

Haboobs are dust storms produced by the spreading of evaporatively cooled air from thunderstorms over dusty surfaces and are a major dust uplift process in the Sahara. In this study observations, reanalysis, and a high-resolution simulation using the Weather...

The importance of rare, high-wind events for dust uplift in northern Africa.

Geophysical research letters

Cowie SM, Marsham JH, Knippertz P.
PMID: 27667872
Geophys Res Lett. 2015 Oct 16;42(19):8208-8215. doi: 10.1002/2015GL065819. Epub 2015 Oct 08.

Dust uplift is a nonlinear thresholded function of wind speed and therefore particularly sensitive to the long tails of observed wind speed probability density functions. This suggests that a few rare high-wind events can contribute substantially to annual dust...

The role of deep convection and nocturnal low-level jets for dust emission in summertime West Africa: Estimates from convection-permitting simulations.

Journal of geophysical research. Atmospheres : JGR

Heinold B, Knippertz P, Marsham JH, Fiedler S, Dixon NS, Schepanski K, Laurent B, Tegen I.
PMID: 25893153
J Geophys Res Atmos. 2013 May 27;118(10):4385-4400. doi: 10.1002/jgrd.50402. Epub 2013 May 29.

[1] Convective cold pools and the breakdown of nocturnal low-level jets (NLLJs) are key meteorological drivers of dust emission over summertime West Africa, the world's largest dust source. This study is the first to quantify their relative contributions and...

Identifying errors in dust models from data assimilation.

Geophysical research letters

Pope RJ, Marsham JH, Knippertz P, Brooks ME, Roberts AJ.
PMID: 27840459
Geophys Res Lett. 2016 Sep 16;43(17):9270-9279. doi: 10.1002/2016GL070621. Epub 2016 Sep 03.

Airborne mineral dust is an important component of the Earth system and is increasingly predicted prognostically in weather and climate models. The recent development of data assimilation for remotely sensed aerosol optical depths (AODs) into models offers a new...

Add-on Cannabidiol Treatment for Drug-Resistant Seizures in Tuberous Sclerosis Complex: A Placebo-Controlled Randomized Clinical Trial.

JAMA neurology

Thiele EA, Bebin EM, Bhathal H, Jansen FE, Kotulska K, Lawson JA, O'Callaghan FJ, Wong M, Sahebkar F, Checketts D, Knappertz V.
PMID: 33346789
JAMA Neurol. 2021 Mar 01;78(3):285-292. doi: 10.1001/jamaneurol.2020.4607.

IMPORTANCE: Efficacy of cannabidiol has been demonstrated in seizures associated with Lennox-Gastaut and Dravet syndromes but appears not yet to have been established in conditions with primarily focal seizures, such as tuberous sclerosis complex (TSC).OBJECTIVE: To evaluate efficacy and...

Cause of death in MS: long-term follow-up of a randomised cohort, 21 years after the start of the pivotal IFNβ-1b study.

BMJ open

Goodin DS, Ebers GC, Cutter G, Cook SD, O'Donnell T, Reder AT, Kremenchutzky M, Oger J, Rametta M, Beckmann K, Knappertz V.
PMID: 23204140
BMJ Open. 2012 Nov 30;2(6). doi: 10.1136/bmjopen-2012-001972. Print 2012.

OBJECTIVES: Compared with controls, multiple sclerosis (MS) patients die, on average, 7-14 years prematurely. Previously, we reported that, 21 years after their participation in the pivotal randomised, controlled trial (RCT) of interferon β-1b, mortality was reduced by 46-47% in...

Fractional Montgomery effect: a self-imaging phenomenon.

Journal of the Optical Society of America. A, Optics, image science, and vision

Lohmann AW, Knuppertz H, Jahns J.
PMID: 16134844
J Opt Soc Am A Opt Image Sci Vis. 2005 Aug;22(8):1500-8. doi: 10.1364/josaa.22.001500.

Self-imaging means image formation without the help of a lens or any other device between object and image. There are three versions of self-imaging: the classical Talbot effect (1836), the fractional Talbot effect, and the Montgomery effect (1967). Talbot...

Climatology of nocturnal low-level jets over North Africa and implications for modeling mineral dust emission.

Journal of geophysical research. Atmospheres : JGR

Fiedler S, Schepanski K, Heinold B, Knippertz P, Tegen I.
PMID: 25893154
J Geophys Res Atmos. 2013 Jun 27;118(12):6100-6121. doi: 10.1002/jgrd.50394. Epub 2013 Jun 21.

[1] This study presents the first climatology for the dust emission amount associated with Nocturnal Low-Level Jets (NLLJs) in North Africa. These wind speed maxima near the top of the nocturnal boundary layer can generate near-surface peak winds due...

Survival in commercially insured multiple sclerosis patients and comparator subjects in the U.S.

Multiple sclerosis and related disorders

Kaufman DW, Reshef S, Golub HL, Peucker M, Corwin MJ, Goodin DS, Knappertz V, Pleimes D, Cutter G.
PMID: 25876474
Mult Scler Relat Disord. 2014 May;3(3):364-71. doi: 10.1016/j.msard.2013.12.003. Epub 2013 Dec 25.

OBJECTIVE: Compare survival in patients with multiple sclerosis (MS) from a U.S. commercial health insurance database with a matched cohort of non-MS subjects.METHODS: 30,402 MS patients and 89,818 non-MS subjects (comparators) in the OptumInsight Research (OIR) database from 1996...

Laquinimod Safety Profile: Pooled Analyses from the ALLEGRO and BRAVO Trials.

International journal of MS care

Sørensen PS, Comi G, Vollmer TL, Montalban X, Kappos L, Dadon Y, Gorfine T, Margalit M, Sasson N, Rubinchick S, Knappertz V.
PMID: 28243182
Int J MS Care. 2017 Jan-Feb;19(1):16-24. doi: 10.7224/1537-2073.2015-024.

BACKGROUND: Laquinimod 0.6 mg is a once-daily, oral, disease-modifying therapy in development for the treatment of multiple sclerosis (MS) that was investigated in two double-blind, placebo-controlled, phase 3 trials: ALLEGRO and BRAVO.METHODS: Data from these studies were pooled to...

Time course of glatiramer acetate efficacy in patients with RRMS in the GALA study.

Neurology(R) neuroimmunology & neuroinflammation

Davis MD, Ashtamker N, Steinerman JR, Knappertz V.
PMID: 28210662
Neurol Neuroimmunol Neuroinflamm. 2017 Feb 08;4(2):e327. doi: 10.1212/NXI.0000000000000327. eCollection 2017 Mar.

OBJECTIVE: To determine the time to efficacy onset of glatiramer acetate (GA) 40 mg/mL 3-times-weekly formulation (GA40).METHODS: This post hoc analysis of data from the 1-year, double-blind, placebo-controlled phase of the Glatiramer Acetate Low-Frequency Administration study (NCT01067521) of GA40...

Role of Nuclear Factor (Erythroid-Derived 2)-Like 2 Signaling for Effects of Fumaric Acid Esters on Dendritic Cells.

Frontiers in immunology

Hammer A, Waschbisch A, Knippertz I, Zinser E, Berg J, Jörg S, Kuhbandner K, David C, Pi J, Bayas A, Lee DH, Haghikia A, Gold R, Steinkasserer A, Linker RA.
PMID: 29312359
Front Immunol. 2017 Dec 22;8:1922. doi: 10.3389/fimmu.2017.01922. eCollection 2017.

To date, the intracellular signaling pathways involved in dendritic cell (DC) function are poorly understood. The antioxidative transcription factor nuclear factor (erythroid-derived 2)-like 2 (Nrf2) has been shown to affect maturation, function, and subsequent DC-mediated T cell responses of...

Showing 1 to 12 of 21 entries