Prof. Dr. Michael Wahl

Profil

• Digitalisierung und Inklusion – Grundsatzfragen und Gelingensbedingungen einer inklusiven digitalen Schul- und Unterrichtsentwicklung

  Quelle ↗

  Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2019 - 12/2021 Projektleitung: Dr. Heike Schaumburg

• Digitalisierung und Inklusion – Grundsatzfragen und Gelingensbedingungen einer inklusiven digitalen Schul- und Unterrichtsentwicklung (Teilprojekt IV)

  Quelle ↗

  Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2019 - 12/2021 Projektleitung: Prof. Dr. Raphael Christian Zender, Prof. Dr. Michael Wahl, Dr. Heike Schaumburg

• Digitalisierung und Inklusion - Grundsatzfragen und Gelingesbedingungen einer inklusiven digitalen Schul- und Unterrichtsentwicklung (Teilprojekt III)

  Quelle ↗

  Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2019 - 06/2022 Projektleitung: Prof. Dr. Michael Wahl, Prof. Dr. Niels Pinkwart, Dr. Heike Schaumburg

• EXIST Gründerstipendium SWIM360 - Entwicklung eines multifunktionalen Schwimmtrainingsgerätes

  Quelle ↗

  Förderer: BMWE: EXIST Zeitraum: 01/2019 - 12/2019 Projektleitung: Prof. Dr. Michael Wahl

• Ko-Aktivierung von Deutscher Gebärdensprache und deutscher Schriftsprache bei tauben bimodal-bilingualen Personen und hörenden L2/M2-Lerner*innen: Behaviorale und neuronale Korrelate im Entwicklungsverlauf

  Quelle ↗

  Förderer: DFG Sachbeihilfe Zeitraum: 07/2022 - 07/2025 Projektleitung: Prof. Dr. Agnes Kristina Villwock, Prof. Dr. Michael Wahl

• Labor Know-How als gemeinsame Ressource

  Quelle ↗

  Förderer: Berlin University Alliance (BUA) Zeitraum: 02/2021 - 07/2026 Projektleitung: Prof. Dr. Pia Knoeferle, Prof. Dr. Elke Greifeneder

• InnovationLab GmbH

  P

  77 Treffer63.1%
  • Interfaces in opto-electronic thin film multilayer devices
    P

    63.1%

• Science & Startups Berlin

  T

  6 Treffer59.0%
  • Zuwendung im Rahmen des Programms „exist – Existenzgründungen aus der Wissenschaft“ aus dem Bundeshaushalt, Einzelplan 09, Kapitel 02, Titel 68607, Haushaltsjahr 2026, sowie aus Mitteln des Europäischen Strukturfonds (hier Euro-päischer Sozialfonds Plus – ESF Plus) Förderperiode 2021-2027 – Kofinanzierung für das Vorhaben: „exist Women“
    T

    59.0%

• Consejería de Educación y Universidades del Gobierno de Canarias (CEU)

  P

  1 Treffer57.5%
  • Playing beyond CLIL
    P

    57.5%

• EuropaBeratung Berlin

  P

  1 Treffer57.5%
  • Playing beyond CLIL
    P

    57.5%

• Interacting UK Limited

  P

  1 Treffer57.5%
  • Playing beyond CLIL
    P

    57.5%

• Espoon Kaupunki

  P

  1 Treffer57.5%
  • Playing beyond CLIL
    P

    57.5%

• Muquans

  P

  17 Treffer56.1%
  • EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)
    P

    56.1%

• Berliner Senatsverwaltung für Bildung, Jugend und Familie

  PT

  13 Treffer55.8%
  • Begleitforschung zum Berliner Schulversuch Hybridunterricht
    P

    55.8%

• Velamed GmbH Medizintechnik & Biomechanische Konzepte, Köln

  P

  29 Treffer55.7%
  • EXGAVINE: Bewegungsspiele in der Virtuellen Realität als Therapieform neurologischer Erkrankungen
    P

    55.7%

• RetroBrain R&D UG

  P

  29 Treffer55.7%
  • EXGAVINE: Bewegungsspiele in der Virtuellen Realität als Therapieform neurologischer Erkrankungen
    P

    55.7%

• Local chemical and neurogenic regulation of cerebral vascular resistance.

  1978

  Physiological Reviews · 347 Zitationen · DOI

• Mediators of Blood-Brain Barrier Dysfunction and Formation of Vasogenic Brain Edema

  1988

  Journal of Cerebral Blood Flow & Metabolism · 296 Zitationen · DOI

  The characteristics and mechanisms enabling the blood-brain barrier (BBB) to maintain the milieu of the brain have been reviewed in detail elsewhere (Banks and Kastin, 1987; Bradbury, 1985; Crone, 1986a, 1987; Cornford, 1985; Davson, 1976; Er­ misch et aI. , 1985; Fenstermacher, 1985; Gjedde, 1983; Goldstein and Betz, 1986; Meisenberg and Simmons, 1983; Oldendorf, 1974; Pardridge, 1983; Rapoport, 1976a; Rapoport and Robinson, 1986). Before discussing the possible role of mediators in BBB opening some pertinent aspects of the BBB will be discussed briefly. The morphological substrate of the BBB in cere­ bral vessels is the continuous layer of endothelial cells with junctions and no or minimal vesic­ ular transport. The functional characteristics of BBB are the same as of tight epithelium such as (a) low diffusional permeability for water-soluble compounds, (b) low hydraulic conductivity, (c) high reflection coefficient, and (d) high electrical resis­ tance. All these parameters are indicative of low diffusional exchange of water-soluble solutes. As well as by the restricted diffusion the penetration of several mediators is also inhibited by an enzymatic degradation at the endothelial border. Although li­ pophilic compounds can easily cross the BBB by simple diffusion, the trans cellular transport of hy­ drophilic solutes is made possible by facilitated dif­ fusion and active transport. All these mechanisms permit a highly selective exchange between blood and brain and provide an optimally controlled ho-

• Perivascular Potassium and pH as Determinants of Local Pial Arterial Diameter in Cats

  1972

  Circulation Research · 288 Zitationen · DOI

  The effects of and the interaction between local perivascular variation in potassium and bicarbonate concentration on the diameter of pial arteries were studied in cats by the microapplication technique. At 11 mEq/liter of bicarbonate, a direct correlation existed between vascular diameter and K + concentrations between 0 and 10 mEq/liter. At K + concentrations between 10 and 20 mEq/liter, no further increase in vascular diameter was observed. At a K + concentration of 5 mEq/liter, an inverse relationship existed between pial arterial diameter and perivascular bicarbonate concentrations between 0 and 22 mEq/liter. At K + concentrations of 0 and 10 mEq/liter, the pial arterial diameter was determined strongly by the K + concentration and was only slightly, if at all, influenced by bicarbonate concentrations between 5 and 22 mEq/liter. At lower bicarbonate concentrations the local acidity induced a marked vasodilation. The results indicate that the diameter of pial arterioles in cats is affected by periarteriolar concentrations of K + and H + ; the degree of the vasoreaction induced by H + is modulated by K + .

• An ultrafast quantum random number generator with provably bounded output bias based on photon arrival time measurements

  2011

  Applied Physics Letters · 201 Zitationen · DOI

  We report the implementation of a quantum random number generator based on photon arrival times. Due to fast and high resolution timing we are able to generate the highest bitrate of any current generator based on photon arrival times. Bias in the raw data due to the exponential distribution of the arrival times is removed by postprocessing which is directly integrated in the field programmable logic of the timing electronics.

• Micropuncture evaluation of the importance of perivascular pH for the arteriolar diameter on the brain surface

  1970

  Pflügers Archiv - European Journal of Physiology · 187 Zitationen · DOI

• Fluorescence Lifetime Correlation Spectroscopy

  2006

  Journal of Fluorescence · 182 Zitationen · DOI

• Time-resolved fluorescence correlation spectroscopy

  2002

  Chemical Physics Letters · 176 Zitationen · DOI

• The dilatatory action of adenosine on pial arteries of cats and its inhibition by theophylline

  1976

  Pflügers Archiv - European Journal of Physiology · 176 Zitationen · DOI

• Accurate ground state potential of Cs2 up to the dissociation limit

  1985

  The Journal of Chemical Physics · 166 Zitationen · DOI

  Using the method of Doppler-free double resonance polarization spectroscopy transitions from selectively pumped levels (v′, J′) of the D1Σ+u state down to levels (v″, J″) of the X 1Σ+g state with v″= 0–140 have been measured with high accuracy. A long range analysis, based on 21 outer turning points of the IPA potential with v″=110-130 and on calculated exchange energies and second order van der Waals coefficients Cn with n=6, 8, 10, and 12 leads to a dissociation energy De =3649.5±0.8 cm−1 (0.452 49 eV). The influence of the third order C11 contribution and the hyperfine structure on the correct value of De are briefly discussed.

• Fast calculation of fluorescence correlation data with asynchronous time-correlated single-photon counting

  2003

  Optics Express · 153 Zitationen · DOI

  Fluorescence correlation spectroscopy (FCS) is a powerful spectroscopic technique for studying samples at dilute fluorophore concentrations down to single molecules. The standard way of data acquisition, at such low concentrations, is an asynchronous photon counting mode that generates data only when a photon is detected. A significant problem is how to efficiently convert such asynchronously recorded photon count data into a FCS curve. This problem becomes even more challenging for more complex correlation analysis such as the recently introduced combination of FCS and time-correlated single-photon counting (TCSPC). Here, we present, analyze, and apply an algorithm that is highly efficient and can easily be adapted to arbitrarily complex correlation analysis.

• Effects of Bradykinin on Permeability and Diameter of Pial Vessels<i>In vivo</i>

  1984

  Journal of Cerebral Blood Flow & Metabolism · 151 Zitationen · DOI

  The effect of bradykinin on the permeability and vasomotor response of pial vessels has been studied to enhance our understanding of the pathophysiological role of the kallikrein-kinin system in cerebral tissue. Intravital fluorescence microscopy of the pia arachnoidea was conducted using Na+-fluorescein, FITC-dextran, and FITC-albumin as low and high molecular weight blood-brain barrier indicators. Massive arterial dilatation evolved immediately upon administration of bradykinin by superfusion of the exposed cerebral surface. An increase of the arterial diameter by 40% was the maximal response found at bradykinin concentrations of 4 x 10(-5) M. Arterial dilatation became attenuated with continuous superfusion of the preparation with bradykinin. In pial veins, a moderate reduction of the vessel diameter was observed, however, only after prolonged superfusion of the preparation. Bradykinin led to selective opening of the blood-brain barrier for Na+-fluorescein at superfusate concentrations of greater than or equal to 4 x 10(-7) M, but not for FITC-dextran or FITC-albumin. Topical administration of l-isoproterenol (10(-4) M) was found to prevent extravasation of Na+-fluorescein in the presence of bradykinin concentrations of 4 x 10(-6) M. Protection of the blood-brain barrier by isoproterenol was not observed when higher concentrations of bradykinin were employed. Intracarotid infusion of bradykinin were employed. Intracarotid infusion of bradykinin led also to a selective opening of the blood-brain barrier for Na+-fluorescein, but not for FITC-dextran or FITC-albumin. In contrast to superfusion, this route of administration did not induce changes of the vasomotor behavior of the arteries or veins. Additional experiments with B1-agonists and -antagonists suggest that bradykinin causes the openings of the blood-brain barrier th rough an interaction with B2-receptors on endothelial cells, and arterial dilatation via interaction with B2-receptors on vascular smooth muscle cells. Our findings support the concept that the release of kinins in the brain during an acute cerebral lesion mediates secondary damaging processes by the enhancement of blood-brain barrier dysfunction.

• Involvement of calcitonin gene-related peptide (CGRP) and nitric oxide (NO) in the pial artery dilatation elicited by cortical spreading depression

  1994

  Brain Research · 145 Zitationen · DOI

• Measurement of masses and widths of excited charm mesons D and evidence for broad states

  2004

  Physics Letters B · 132 Zitationen · DOI

  Using data from the FOCUS experiment we analyze the $D^+\\pi^-$ and $D^0\\pi^+$ invariant mass distributions. We measure the $D_2^{*0}$ mass $M_{D_2^{*0}} = (2464.5 \\pm 1.1 \\pm 1.9) \\mev$ and width $\\Gamma_{D_2^{*0}} = (38.7 \\pm 5.3 \\pm 2.9) \\mev$, and the $D_2^{*+}$ mass $ M_{D_2^{*+}} = (2467.6 \\pm 1.5 \\pm 0.76) \\mev$ and width $ \\Gamma_{D_2^{*+}} = (34.1 \\pm 6.5 \\pm 4.2) \\mev$. We find evidence for broad structures over background in both the neutral and charged final state. If each is interpreted as evidence for a single L=1, $j_q=1/2$ excited charm meson resonance, the masses and widths are $M_{1/2}^0 =(2407 \\pm 21 \\pm 35) \\mev$, $\\Gamma_{1/2}^0 = (240 \\pm 55 \\pm 59) \\mev$, and $M_{1/2}^+ = (2403 \\pm 14 \\pm 35) \\mev$ $\\Gamma_{1/2}^+ = (283 \\pm 24 \\pm 34) \\mev$, respectively.

• Increase of adenosine content in cerebral cortex of the cat during bicuculline-induced seizure

  1980

  Pflügers Archiv - European Journal of Physiology · 126 Zitationen · DOI

• Composition of tubular fluid in the macula densa segment as a factor regulating the function of the juxtaglomerular apparatus.

  1967

  PubMed · 125 Zitationen

  In micropuncture experiments on the rat kidney, solutions of various electrolyte composition were injected toward the macula densa of single nephrons. In kidneys with a high renin content, the transient collapse of the proximal convolution of the same nephron occurred when sodium concentration was i

• Regulation of Cerebral Blood Flow — A Brief Review

  1993

  124 Zitationen · DOI

• Measurements of the perivascular PO2 in the vicinity of the pial vessels of the cat

  1979

  Pflügers Archiv - European Journal of Physiology · 115 Zitationen · DOI

• Charm system tests of CPT and Lorentz invariance with FOCUS

  2003

  Physics Letters B · 114 Zitationen · DOI

  We have performed a search for CPT violation in neutral charm meson oscillations. While flavor mixing in the charm sector is predicted to be small by the Standard Model, it is still possible to investigate CPT violation through a study of the proper time dependence of a CPT asymmetry in right-sign decay rates for D0→K−π+ and D0→K+π−. This asymmetry is related to the CPT violating complex parameter ξ and the mixing parameters x and y: ACPT∝(Reξ)y−(Imξ)x. Our 95% confidence level limit is −0.0068<(Reξ)y−(Imξ)x<0.0234. Within the framework of the Standard Model Extension incorporating general CPT violation, we also find 95% confidence level limits for the expressions involving coefficients of Lorentz violation of (−2.8<N(x,y,δ)(Δa0+0.6ΔaZ)<4.8)×10−16 GeV, (−7.0<N(x,y,δ)ΔaX<3.8)×10−16 GeV, and (−7.0<N(x,y,δ)ΔaY<3.8)×10−16 GeV, where N(x,y,δ) is the factor which incorporates mixing parameters x, y and the doubly Cabibbo-suppressed to Cabibbo-favored relative strong phase δ.

• Sputtered neutral silver clusters up to Ag18

  1993

  Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms · 107 Zitationen · DOI

• Permeability and vasomotor response of cerebral vessels during exposure to arachidonic acid

  1987

  Acta Neuropathologica · 107 Zitationen · DOI

• Dependency of Pial Arterial and Arteriolar Diameter on Perivascular Osmolarity in the Cat

  1973

  Circulation Research · 106 Zitationen · DOI

  The effect of perivascular osmolarity on the diameter of pial arteries was studied in cats by the microapplication technique. Between 251 and 360 mosmoles/liter, concentration-response curves were obtained for single vessels. Constriction occurred when perivascular osmolarity was decreased below 317 mosmoles/liter, and dilation occurred at osmolarities above this value. The effect was the same whether the osmolarity was changed by addition of mannitol or NaCl. Reduction of sodium concentration from 156 to 133 mEq/liter at constant osmolarity did not affect arteriolar diameter, but greater reductions in sodium concentration induced vasoconstriction. The results indicate that the resistance of pial arteries can be influenced by local changes in perivascular osmolarity.

• Mediators of brain edema and secondary brain damage

  1988

  Critical Care Medicine · 99 Zitationen · DOI

  Progress is our understanding of the roles of vasogenic and cytotoxic brain edema in secondary brain damage can be expected from studies of the ability of biochemical factors to open the blood-brain barrier, derange the microcirculation, and cause cell swelling and necrosis. Mediator compounds are considered to form or to become released in an area of primarily damaged brain (necrosis) and to enter the cerebral parenchyma through the broken blood-brain barrier from the intravascular space. Many biochemical factors must be considered. We suggested three criteria for determining the roles of mediators: a) they must inflict brain tissue damage, b) they must occur in pathologic concentrations or in compartments not normally present, and c) specific inhibition should attenuate secondary brain damage. These requirements are met by the kallikrein-kinin system and by glutamate. In the case of arachidonic acid and its many metabolites, the concept is difficult to test because fatty acids may be active only if not bound to proteins, and therapeutic inhibition might be difficult. A variety of mediators may enhance each other in a cascade manner by various initiating reactions that might be amenable for pharmacologic inhibition.

• VUV photoionization of sputtered neutral silver clusters

  1994

  Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms · 97 Zitationen · DOI

• The formation of clusters during ion induced sputtering of metals

  1996

  Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms · 94 Zitationen · DOI

• Endothelin-Induced Contraction and Relaxation of Rat Isolated Basilar Artery: Effect of BQ-123

  1994

  Journal of Cerebral Blood Flow & Metabolism · 88 Zitationen · DOI

  In ring segments from rat basilar artery (BA) the endothelin (ET) peptides ET-1, ET-2, and ET-3 induced concentration-related contractions. The order of potency was ET-1 = ET-2 > ET-3, while no differences occurred in the maximum contraction. The selective ETA receptor antagonist, BQ-123 (10(-10)-10(-4) M) alone elicited a small contraction only at 10(-4) M. In the presence of BQ-123 (10(-7)-10(-5) M), the concentration-response curve for ET-1 was shifted to the right without any decrease in maximum contraction, indicating competitive inhibition of ET-1 binding to the ETA receptor by BQ-123. The pA2 value calculated for BQ-123 was 6.935; the slope of the regression curve was 0.734. In contrast to ET-1, the contractile action of ET-3 was abolished by 10(-5) M BQ-123. In segments precontracted with 10(-6) M serotonin, ET-3, but not ET-1, induced relaxation at low concentrations (10(-11)-10(-8) M), with maximum relaxation amounting to 17.8 +/- 14.7% of precontraction (mean +/- SD; n = 16). The relaxant action of ET-3 was abolished in vessels incubated with NG-nitro-L-arginine (10(-5) M), an inhibitor of nitric oxide synthase. These results indicate that the ET-induced contraction of the isolated rat BA involves activation of the ETA receptor. The ET-3-induced relaxation of precontracted rat BA is apparently mediated by release of nitric oxide from the endothelium.

• Charité – Universitätsmedizin Berlin

  Labor Know-How als gemeinsame Ressource

  university

• Christian-Albrechts-Universität zu Kiel

  Digitalisierung und Inklusion – Grundsatzfragen und Gelingensbedingungen einer inklusiven digitalen Schul- und Unterrichtsentwicklung (Teilprojekt IV)

  university

• Europa-Universität Flensburg

  Digitalisierung und Inklusion – Grundsatzfragen und Gelingensbedingungen einer inklusiven digitalen Schul- und Unterrichtsentwicklung

  university

Name

Prof. Dr. Michael Wahl

Titel

Prof. Dr.

Fakultät

Kultur-, Sozial- und Bildungswissenschaftliche Fakultät

Institut

Institut für Rehabilitationswissenschaften

Arbeitsgruppe

Rehabilitationstechnik und neue Medien

Telefon

+49 30 2093-66774

HU-FIS-Profil

Quelle ↗

Zuletzt gescrapt

26.4.2026, 01:02:03