Introduction: Due to dissimilarities in the availability of poisons in different areas and lack of enough control over the purchase and sale of some dangerous rodenticides, it is prudent to establish the distribution of rodenticide poisoning in each region. Therefore, this study was performed to evaluate the demographic factors, types of poisons, duration of hospitalization and mortality of pat...

A simple method was developed for determination of illudin S in fungi (Omphalotus guepiniformis: poisonous mushroom) and a food that caused food poisoning, using liquid chromatography tandem mass spectrometry (LC/MS/MS). Illudin S in fungi and the food that caused food poisoning was extracted with methanol and then cleaned up with an Oasis HLB cartridge. LC separation was performed with an octa...

OBJECTIVE To identify the hospital admission data set that best captures the incidence of acute poisoning in rural Sri Lanka. METHODS Data were collected on all acute poisoning cases admitted to 34 primary and 1 referral hospital in Anuradhapura district from September 2008 to January 2010. Three admission data sets were compared with the "true" incidence of acute poisoning to determine the s...

BACKGROUND Preschool children have a high risk of poisoning. While medicines prescribed by primary care are potential poisoning agents, the risk factors for poisoning from medication are not well described. AIM To identify risk factors for medicinal and non-medicinal poisoning in preschool children. DESIGN AND SETTING Population-based nested case-control study using The Health Improvement ...

Background: Human serum paraoxonase 1 (PON1) hydrolyzes organophosphate (OP) compounds and so significantly alters an individual’s susceptibility to the toxicity of these chemicals. The study was designed to assess the serum PON1 activity in a series of patients with OP poisoning. Methods: Suspected OP poisoning patients presented within 6 hours of...

BACKGROUND We aimed herein to assess demographic, etiological, and clinical characteristics of patients presenting to our hospital's emergency department with acute poisoning. METHOD This study included a total of 509 (0.27%) patients diagnosed with poisoning at our emergency department within a 3-year period. This was a retrospective study.  RESULTS Seventy-one point three (n = 363) percen...

This paper describes Householder reduction of a rectangular sparse matrix to small band upper triangular form. Using block Householder transformations gives good orthogonality, is computationally efficient, and has good potential for parallelization. The algorithm is similar to the standard dense Householder reduction used as part of the usual dense SVD computation. For the sparse algorithm, th...

A detailed investigation of trends in suicide rates in Scotland from 1974 to 1984 showed a complex pattern. Overall rates for men increased by 40% with the greatest increases in those aged 45-64. In contrast, rates for women showed a small decline, which was most noticeable in those aged 15-24. The well recognised decline in poisoning by domestic gas was seen over this period, and suicide by th...

BACKGROUND Acute pesticide poisoning in developing countries is a considerable problem, requiring diagnosis and treatment. This study describes how training of health care workers in Uganda affects their ability to diagnose and manage acute pesticide poisoning. METHOD A postintervention cross-sectional study was conducted using a standardized questionnaire. A total of 326 health care workers ...

As machine learning becomes widely used for automated decisions, attackers have strong incentives to manipulate the results and models generated by machine learning algorithms. In this paper, we perform the first systematic study of poisoning attacks and their countermeasures for linear regression models. In poisoning attacks, attackers deliberately influence the training data to manipulate the...