Since the classical experiments of D a ndy and Blackfan (5) it has been generally recognized that the chorioid plexuses are the principal sources of cerebrospinal fluid. Controversy still exists, however, concerning the method of production of the fluid. I t has been held by some authorities tha t the cerebrospinal fluid is actively secreted by the epithelial cells of the plexuses and by others...

for benign esophageal stricture for pa− tients in whom surgery is not feasible [1]. Repeated bougienage by the patients themselves, “self−dilation,” has been proven safe and effective [2]. The major complication of bougienage is esophageal perforation, although the incidence is only 0.04 %±0.2 % [3]. Case. A 74−year−old man, diagnosed as achalasia 7 years ago, underwent routine Maloney esophage...

UNLABELLED The purpose of this commentary is to describe the unintended effects ethics committees may have on research and to analyse the regulatory and administrative problems of clinical trials. DISCUSSION The Finnish law makes an arbitrary distinction between medical research and other health research, and the European Union's directive for good clinical trials further differentiates drug ...

Across cultures, people try to "undo" bad luck with superstitious rituals such as knocking on wood, spitting, or throwing salt. We suggest that these rituals reduce the perceived likelihood of anticipated negative outcomes because they involve avoidant actions that exert force away from one's representation of self, which simulates the experience of pushing away bad luck. Five experiments test ...

where K ( X ) is the Grothendleck group (2) of complex vector bundles over X. The generaI theory of these K-groups, as developed in [1], has found many applications in topology and related fields. Since the periodicity theorem is the foundation stone of all this theory i t seems desirable to have an elementary proof of it, and it is the purpose of this paper t(~ present such a proof. Our proof ...

In general, in the production of projection slides, one is limited to the use of s tandard lantern slide plates. If the original electron micrograph negatives vary in contrast, it is often difficult to produce, within an acceptable range of density, a series of slides for projection. In an a t tempt to overcome this difficulty, diazotype color films have been tested as an alternative to the sta...

From Middle Age onwards, the philosophers and theologians devoted notable endeavors to explain the evilness in the Hebrew-tradition. Whether one figure out God is an entity characterized by love, compression and omnipresence, it remains to be seen why he creates exactly his most staunch enemy, or why one of his loved and wisest angels converts in a corrupted being decisively launched to tempt t...

AIM Surgery for epilepsy is a significant treatment alternative with favorable outcomes in the pediatric age group. In this study we present the surgical outcomes of pediatric population referred to our center. MATERIAL AND METHODS The clinical data of 126 patients (≤18 years) with lesional partial epilepsies operated in our center between 1995- 2011 were evaluated retrospectively. Parameters...

A L T H O U G H many articles on surgical subjects have been reported in medical journals there have been few articles on the healing of anorectal wounds. For several years at the Medical College of South Caro!ina, a clinical study of postoperative anorectal wound healing has been carried out. In order to obtain objective evidence and to communicate information more accurately, all anorectal wo...

Car commercials, like many advertisements, tempt its viewers with comfort, capability, or safety features, as well as being well‐engineered, affordable, attractive, large or compact sized, or fuel efficient. This study examines the pitches in YouTube car commercial video clips from the 1960s until 2014. We coded a total of 263 total car commercials based on pitch, setting, narrator, decade, and...