Aim
 The aim of study to evaluate the bedside percutaneous dilatation tracheostomy, performed with Fiberoptic bronchoscopy guided Griggs technique using a mini-tracheostomy needle, by residents in intensive care unit retrospectively.
 Materials and Methods
 Percutaneous tracheostomys 20 patients needle. All tracheostomy procedures were resident who was currently undergoing reside...

Understanding conditions in the Earth's interior requires data derived from laboratory experiments. Such experiments provide important insights into under which mineral reactions take place as well processes that control localization of deformation deep Earth. We performed Griggs-type general shear combination with numerical models, based on continuum mechanics, to quantify effect evolving samp...

Geological processes involving deformation and/or reactions are highly influenced by the rock grain size, especially if diffusion-controlled take place such as metamorphic and diffusion creep. Although many processes, inducing grain-size reduction, documented understood at relatively high stresses low temperatures (e.g., cataclasis) well lower stress higher temperature conditions bulging subgra...

Since the Supreme Court’s landmark decision in Dothard v. Rawlinson in 1977, gender-based disparate impact litigation has been limited in scope, but there remains room for growth. This Comment focuses on one particularly successful subset of gender-based disparate impact cases, physical-selection procedures. An examination of these decisions shows that plaintiffs have faced an uphill battle in ...

PREDICTING THE SEVERITY OF DUCHENNE MUSCULAR DYSTROPHY: IMPLICATIONS FOR TREATMENT To the Editor: Variability in disease severity in Duchenne muscular dystrophy (DMD) is considered a biological phenomenon, possibly due to genetic or epigenetic mechanisms. It was exciting to read the article by Pegoraro et al.1 describing the discovery of osteopontin as a possible modifier gene. As discussed in ...

The k-residue of a graph, introduced by Jelen in a 1999 paper, is a lower bound on the k-independence number for every positive integer k. This generalized earlier work by Favaron, Mahéo, and Saclé, by Griggs and Kleitman, and also by Triesch, who all showed that the independence number of a graph is at least as large as its Havel-Hakimi residue, defined by Fajtlowicz. We show here that, for ev...

The present paper continues the work begun by Anstee, Griggs and Sali on small forbidden configurations. In the notation of (0,1)-matrices, we consider a (0,1)-matrix F (the forbidden configuration), an m × n (0,1)-matrix A with no repeated columns which has no submatrix which is a row and column permutation of F , and seek bounds on n in terms of m and F . We give new exact bounds for some 2× ...

Though the nitrate drugs have been widely used to alleviate or prevent angina pectoris for nearly 100 years, the mechanism of their action remains unknown. The two possibilities that have been most widely considered are (a) that they cause an increase in oxygen supply to the heart through coronary vasodilatation and increase in coronary flow, and (b) that they cause a reduction in energy expend...

In 1977, Metrizamide (Amipaque), the first non-ionic water based contrast agent became available, and was thus in direct competition with Pantopaque. Marketing studies of Pantopaque between 1976 and 1977 showed that the product accounted for 82% of Lafayette's product sales. A highly lucrative commodity! In 1977, Alcon proposed acquisition of Lafayette (Alcon itself had been acquired that same ...