Judenspiegel : oder 100 neuenthüllte, heutzutage noch geltende, den Verkehr der Juden mit den Christen betreffende Gesetze der Juden ; mit einer die Entstehung und Weiterentwicklung der jüdischen Gesetze darstellenden höchst interessanten Einleitung

von Justus [d.i. August Briemann]

Pulsed versus continuous wave CO2 laser excisions of 100 oral fibrous hyperplasias: a randomized controlled clinical and histopathological study

BACKGROUND In experimental animal studies, pulsing the CO2 laser beam has been shown to reduce the thermal damage zone of excised oral mucosal tissue. However, there is still controversy over whether this is borne out under clinical conditions. OBJECTIVE To compare the outcome following excisional biopsies of fibrous hyperplasias using a pulsed (cf) versus a continuous wave (cw) CO2 laser mode regarding the thermal damage zone, duration of surgeries, intra- and postoperative complications, postoperative pain sensation, scarring and/or relapse during the initial 6 months. MATERIALS AND METHODS One hundred Swiss-resident patients with a fibrous hyperplasia in their buccal mucosa were randomly assigned to the cw mode (5 W) or the cf mode (140 Hz, 400 microseconds, 33 mJ, 4.62 W) group. All excisions were performed by one single oral surgeon. Postoperative pain (2 weeks) was recorded by visual analogue scale (VAS; ranging from 0 to 100). Intake of analgesics and postoperative complications were recorded in a standardized study form. The maximum width of the collateral thermal damage zone was measured (µm) in excision specimens by one pathologist. Intraoral photographs at 6-month follow-up examinations were evaluated regarding scarring (yes/no). RESULTS Median duration of the excision was 65 seconds in the cw and 81 seconds in the cf group (P = 0.13). Intraoperative bleeding occurred in 16.3% of the patients in the cw and 17.7% of the cf group. The median value of the thermal damage zone was 161(±228) μm in the cw and 152(± 105) μm in the cf group (P = 0.68). The reported postoperative complications included swelling in 19% and minor bleeding in 6% without significant differences between the two laser modes. When comparing each day separately or the combined mean VAS scores of both groups between Days 1-3, 1-7, and 1-15, there were no significant differences. However, more patients of the cw group (25%) took analgesics than patients of the cf group (9.8%) resulting in a borderline significance (P = 0.04). Scarring at the excision site was found in 50.6% of 77 patients after 6 months, and more scars were identified in cases treated with the cf mode (P = 0.03). CONCLUSIONS Excision of fibrous hyperplasias performed with a CO2 laser demonstrated a good clinical outcome and long-term predictability with a low risk of recurrence regardless of the laser mode (cf or cw) used. Scarring after 6 months was only seen in 50.6% of the cases and was slightly more frequent in the cf mode group. Based on the findings of the present study, a safety border of 1 mm appears sufficient for both laser modes especially when performing a biopsy of a suspicious soft tissue lesion to ensure a proper histopathological examination.

Ms. hebr. oct. 100 - Minḥat Yehuda

Vorbesitzer: Abraham Merzbacher

Aron Isak : ett hundraårsminne ; några anteckningar tillegnade Stockholms nosaiska församlings sjukhjelps- och begrafnings-sällskap til dess 100. årsdag

[Verf.: Josef Seligmann]

Der synagogale Gesang : eine Studie ; zum 100. Geburtstage Salomon Sulzer's und 10. Todestage Louis Lewandowski's (1904), nebst deren Biographien

dargest. von Aron Friedmann

Der synagogale Gesang : eine Studie ; zum 100. Geburtstage Salomon Sulzer's und 10. Todestage Louis Lewandowski's (1904), nebst deren Biographien

dargest. von Aron Friedmann

Zum 100. Geburtstage des königlichen Musikdirektors Professor weiland Louis Lewandowski

hrsg. von Aron Friedmann

Heinrich Graetz : Abhandlungen zu seinem 100. Geburtstage (31. Oktober 1917)

hrsg. von M. Brann

Jacob Simonsen og Hustru Rose født Hahn og deres Forfaedre : 100 Aar efter Jacob Simonsens Fødsel

udg. af S. H. Simonsens Børn ved Josef Fischer

CO Oxidation on Pt(100): New Insights based on Combined Voltammetric, Microscopic and Spectroscopic Experiments

We present an experimental study of the CO electro-oxidation on Pt(100)-(1 × 1) electrodes employing electrochemical methods in combination with in situ scanning tunneling microscopy (STM) and shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS). We discussed the nature and stability of the active sites in the preignition region in the presence of dissolved CO (COb) and monitored substrate structure changes during the COb electro-oxidation process. We corroborated that the electro-oxidation kinetics is determined decisively by the history of CO adlayer formation. A new mechanism was proposed for Pt(100) electrode deactivation in the preignition region after excursion of electrode potential to COb ignition region. We believe that this mechanism takes place on Pt surfaces independently on their crystallographic orientation.