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Einleitung: Der freie anterolaterale Oberschenkellappen zeichnet sich durch seine hohe Variabilität aus. Größe des entnommenen Hautareals, Dicke des subkutanen Fettgewebes und Volumen des Muskelanteils lassen sich variabel gestalten. Zudem zeichnet sich dieser Lappen durch eine relativ[for full text, please go to the a.m. URL], 82. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie

Die hereditäre hämorrhagische Teleangiektasie (HHT) ist eine genetische Funktionsstörung der Gefäßneubildung. Multisystemische Angiodysplasie sind für rezidiv. Blutungen verantwortlich. VEGF ist ein entscheidendes Schlüsselprotein im Vorgang der Angiogenese. Avastin[for full text, please go to the a.m. URL], 82. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie

Einleitung: Die Kombination einer intramarginalen, chirurgischen Exzision mit der intraläsionalen Injektion von Glukokortikoiden stellt ein etabliertes Schema in der Behandlung von Keloiden dar. Wir entwickelten eine neuartige, individuell angepaßte Kompressionsschiene, welche sich als adjuvante[for full text, please go to the a.m. URL], 82. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie

Electric conductivity and structural details of the hole-doped polaron conductor La0.9Sr0.1FeO3 (LSF10) are reported. The conductivity of a single crystal shows an exponential increase with temperature with a maxi-mum of 100 S/cm at 700 K and with activation energy of about 375 meV, and a decrease for higher temperatures that follows a power law. The exponential increase of the electric conductivity for 300 K {\leg} T {\leg} 700 is accompanied by a shift of spectral weight in the photoemission valence band towards the Fermi level, indicative of a strong electron-phonon interaction. The subsequent decrease of the conductivity for T > 700 K is accompanied by a reversible phase transformation from orthorhombic to rhombohedral symmetry. The decreasing conductivity for T > 700 K is likely due to the reduction of the iron due to oxygen loss causing a decreasing hole concentration, as evidenced by a substantial chemical shift in the Fe K-shell x-ray absorption spectra. Two additional fine structures in the conductivity data at 357 K, this is, a small temperature reversible jump in the conductivity, and at 573 K, a slight reversible increase of the polaron activation energy, are correlated with an exceptionally strong decrease in spectral valence band intensity near the Fermi level, and with the onset of a corresponding structural transition.

Zur Therapie der Ohrmuschelkeloide existiert ein weitgefächertes Spektrum an beschriebenen Möglichkeiten. Weiterhin problematisch sind jedoch teilweise die Rezidivraten und lokal auftretenden Wundverschlussprobleme. Ein erfolgsversprechendes Modell zur Behandlung scheint die Kombination: intraläsionale[for full text, please go to the a.m. URL], 82. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie

Hydrogen demand has already significantly increased due to the industry needs. Mature technologies based on fossil fuels are not satisfactory due to greenhouse gas concerns. In response, a range of advanced processes are being developed throughout the world. Within the ‘International Energy Agency – Hydrogen Implementing Agreement – Task 25’, a multicriteria methodology was developed for the evaluation of high temperature hydrogen production processes. The aim is to guide R&D strategy by highlighting to which extent the processes may appear promising. The method that was developed is based on the elimination and choice translating the reality (ELECTRE). This study has conducted a first pass application to hydrogen production and highlights the importance of significant weightings and discriminating criteria. Decision makers can apply this method to extract their own subset of processes from the alternatives, according to their system of values defined through the selection of criteria and the associated weights.

Die vorbeschriebene Methode der transvestibulär plazierten „Alar strut grafts“ erscheint zur Korrektur der Mehrzahl von Nasenklappenstenosen geeignet. Klinisch lässt sich eine Untergruppe von Patienten identifizieren, bei denen eine zusätzliche Erweiterung sinnvoll erscheint.[for full text, please go to the a.m. URL], 81. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie

[no abstract available]

Der Vergleich von Ozon-Vertikalprofilen, die mit vier Lidarsystemen aufgenommen wurden, mit In-situ-Messungen nach der UV-Absorptions- und der Chemilumineszenzmethode auf einem Flugzeug, einem Fesselballon und einem Hochhaus zeigen gute Übereinstimmung, wenn die Lidarsysteme nach den Richtlinien der Kommission Reinhaltung der Luft (KRdL) im VDI und DIN betrieben werden; in der Tendenz ist eine geringe systematische Abweichung der Lidardaten gegenüber den In-situ-Daten nach unten zu erkennen, deren Ursache noch unklar ist. Bei der quantitativen Bewertung muss die sich aus den Unterschieden der In-situ-Ergebnisse untereinander ergebende, beträchtliche natürliche Variation der Ozonkonzentration in der unteren Troposphäre berücksichtigt werden. Die besten Resultate werden erzielt, wenn Datensätze, während deren Aufnahme infolge von Nebelschwaden oder Wolken steile Gradienten des Rückstreukoeffizienten vorlagen, mit einem speziellen Algorithmus oder von einem erfahrenen Operateur von der Auswertung ausgeschlossen werden.

The Schauinsland Ozone Precursor Experiment (SLOPE96) campaign was conducted in June 1996 to study the physicochemical transformation of pollutants and the production of photooxidants during; transport from the city of Freiburg to the Schauinsland mountain. For this purpose, chemical surface measurements were made at the entrance of the valley Großes Tal, and close to the Schauinsland summit, at 1200 m altitude on a saddle at the end of the valley. In addition, measurements of ozone, NO sub 2, and meteorological parameters were made on two tethered balloons and aboard a small. This paper describes the experimental setup and the measurements of ozone, odd-nitrogen compounds, carbonyl compounds, CO, and photolysis frequencies made during SLOPE96. The various instruments used on the different platforms were harmonized on the basis of intercomparison experiments in order to achieve a consistent picture. Large precursor concentrations from the nearby city of Freiburg are transported to Schauinsland in a valley wind system during stagnant high-pressure conditions. These conditions occurred only on 2 davs of the campaign, and only 1 day (June 5) was predictable enough to allow for deployment of the aircraft and the balloons. An OH concentration of 8 - 10 x 10 high 6 CM high -3 is derived from the rate of change of HNO sub 3 and NO sub 2 on June 5 at Schauinsland (1.5 - 3 ppb NO sub 2; J sub O1D about 2 x 10 high -5 s high -1), assuming quasi steady state and a homogeneous air mass. The ozone production rate as determined from the photostationary state of NO sub x at Schauinsland reached maximum daily values between 15 and 60 ppb h high -1 around noontime. On average, P(O sub 3) comprised about 30 % of the photolysis rate of NO sub 2. Similar to earlier observations at Schauinsland, a good correlation between P(O sub 3) and the product of UV radiation and precursor concentrations was found.

A project called Turkish-German Cooperation Project for Air Quality and Urban Development is developing a model that can be used in urban centers that want to first achieve urban air quality and its sustainability before implementing urban development plans. The initiative involves measurement and evaluation of air quality with respect to temporal and spatial variability, development of a detailed emission inventory to identify the external and internal source effects, and formulation of a simulation model and evaluation of the results for major urban air pollutants. Finally, the project requires assessment of current and future land-use. Progress in these areas is discussed.

After the publication of this work 1, we became aware of the fact that the frequency of the ultrasound transmitter that we used for determining the elastic moduli of the trabecular bone specimens was not correctly specified. The oscillation frequency of the ultrasound transmitter was 2 MHz (and not 100 MHz as stated in our work) while we used a sampling rate of 100 MHz. In our publication, the oscillation frequency and sampling rate were confounded. Therefore also the statement in the discussion that we might have determined elastic moduli of trabecular bone tissue rather than the elastic properties of whole specimens because we used an ultrasound frequency > 2 MHz is wrong and has to be omitted. For measurement, the cubic bone specimens were not immersed in Ringer's solution but only were kept moist all the time. Apart from these corrections concerning the methods and interpretation of the data, the results reported in our publication and the conclusions are absolutely correct. We apologize for the inconvenience that this inaccuracy may have caused.