AIMS We evaluated the effect of modified Davidson's fixative (mDF) on the number of lymph nodes examined and staging in patients with colon carcinoma. METHODS The results of two different fixation methods used in the pathological preparation of the resection specimens were analyzed. A traditional formalin preparation with manual dissection of all nodes was performed in 117 colon specimens bet...

The objective of this study was to determine the effects of some boron compounds, which have fire retardant properties, as well as melamineurea-formaldehyde (MUF) resins having different melamine contents (10%, 15%, and 20%) on some physical and mechanical properties of medium density fiberboard (MDF) panels. It was found that the water absorption (WA) and thickness swelling (TS) of MDF panels ...

Massive Data Flow (MDF) is everywhere these days; from data about neural cells, social insects and genetic networks, to Lifelog (digital storage of a person’s visual and audio life log) and SNS (Social network service) data streams. Current web and device technology has made it possible for us to record detailed and massive data flows of artificial and real living systems. But how can we analyz...

We have used Hubble Space Telescope Wide Field Planetary Camera 2 observations to construct a color-magnitude diagram (CMD) for the bulge of M31 at a location ∼1.6 kpc from the galaxy’s center. Using scaled-solar abundance theoretical red giant branches with a range of metallicities, we have translated the observed colors of the stars in the CMD to abundances and constructed a metallicity distr...

The paper presents a unitary approach of the use of a Molecular Descriptors Family in structure-property/activity relationships, particularly in modelling the chromatographic retention times of polychlorinated biphenyls. Starting from molecular structure, viewed as a graph, and considering the bonds and bond types, atom types and often the 3D geometry of the molecule, a huge family of molecular...

The antituberculotic activity of some polyhydroxyxanthones was estimated using the Molecular Descriptors Family on Structure Activity Relationships methodology. From a total number of 298110 real and distinct calculated descriptors, 94843 were significantly different and entered into multiple linear regression analysis. The best performing bi-varied model was obtained by use of all polyhydroxyx...

We examine the metallicity distribution function (MDF) and fraction of carbon-enhanced metal-poor (CEMP) stars in a sample that includes 86 stars with [Fe/H] ≤ −3.0, based on high-resolution, high-S/N spectroscopy, of which some 32 objects lie below [Fe/H] = −3.5. After accounting for the completeness function, the “corrected” MDF does not exhibit the sudden drop at [Fe/H] = −3.6 that was found...

In this study wheat straw was taken from Ankara province. In order to produce dry process MDF, urea formaldehyde resin was used at the ratio of 8 %, 10 % and 12 %, 1 % ammonium chloride was used as hardening agent on the basis of dry fiber weight. On the other hand, 5, 6 and 7 min. pressing times were applied. Alcohol benzene, cold water, hot water and 1 % NaOH solubility of wheat straw were 5....

This report describes the development of a language based on VHDL intended to simplify the use of IDDQ instrumentation in production testing. This language called 'Monitor Description Fonnat' or MDF, is part of the development by QTAG (Quality Test Action Group) of an infrastructure for quiescent current testing. The MDF can be used with commercial supported QTAG monitors (lDDQ measurement equi...

در این مقاله رفتار سوپرپلاستیک آلیاژ sn-1%bi در شرایط mdf شده، توسط آزمون پانچ برشی در دمای اتاق (t>0.6tm) موردبررسی قرار گرفت. نتایج آزمون پانچ برشی مقدار ضریب حساسیت به نرخ کرنش (m)  را برای نمونه­های 2، 4، 6 و 8 پاس mdf شده به ترتیب 11/0، 23/0، 35/0 و 53/0 گزارش کرد. این مقادیر نیز نشان می­دهد که نمونه­های 6 و 8 پاس mdf شده رفتار سوپرپلاستیک را تجربه می­کنند. تصاویر میکروسکوپ نوری نشان دادند...