نتایج جستجو برای: formaldehyde threshold limit values

تعداد نتایج: 792106  

2002
Ling Hu Peter C. B. Phillips

This paper develops an asymptotic theory for time series discrete choice models with explanatory variables generated as integrated processes and with multiple choices and threshold parameters determining the choices. The theory extends recent work by Park and Phillips (2000) on binary choice models. As in this earlier work, the maximum likelihood (ML) estimator is consistent and has a limit the...

The frequency behavior of the tunnel injection quantum dot vertical cavitysurface emitting laser (TIQD-VCSEL) is investigated by using an analyticalnumericalmethod on the modulation transfer function. The function is based on therate equations and is decomposed into components related to different energy levelsinside the quantum dot and injection well. In this way, the effect of the tunnelingpr...

Journal: :Journal of physics 2022

Abstract Formaldehyde is a very representative indoor organic pollutant, which can exist in spaces for long time. Using purified formaldehyde dehydrogenase improve the efficiency of degradation. Comparing enzyme activities externally at different temperatures and pH values, simple, rapid, rough evaluation method verifying removal by was preliminarily established.

Journal: :African journal of reproductive health 2005
Ellen M H Mitchell Karen Trueman Mosotho Gabriel Lindsey B Bickers Bock

A retrospective evaluation of attitudinal, behavioural and knowledge change among diverse stakeholder groups was conducted in Limpopo Province of South Africa to assess the effectiveness of a series of values clarification (VC) interventions. Telephone and face-to-face interview (193) results revealed that over two-thirds (70.2%) reported behavioural changes and 93.2% reported increased compass...

Journal: :CoRR 2012
Elie M. Adam Munther A. Dahleh Asuman E. Ozdaglar

We study a model for cascade effects over finite networks based on a deterministic binary linear threshold model. Our starting point is a networked coordination game where each agent’s payoff is the sum of the payoffs coming from pairwise interactions with each of the neighbors. We first establish that the best response dynamics in this networked game is equivalent to the linear threshold dynam...

Journal: :Journal of strength and conditioning research 2005
Carl D Paton William G Hopkins

In several recent studies, athletes experienced substantial gains in sprint and endurance performance when explosive training or high-intensity interval training was added in the noncompetitive phase of a season. Here we report the effect of combining these 2 types of training on performance in the competitive phase. We randomized 18 road cyclists to an experimental (n = 9) or control (n = 9) g...

2013
Marefat Siahkouhian Davar Khodadadi

PURPOSE Optimal training intensity and the adequate exercise level for physical fitness is one of the most important interests of coaches and sports physiologists. The aim of this study was to investigate the validity of the Narita et al target heart rate equation for the adequate exercise training level in sedentary young boys. METHODS Forty two sedentary young boys (19.07±1.16 years) undert...

Journal: :Genetics 1994
G A Churchill R W Doerge

The detection of genes that control quantitative characters is a problem of great interest to the genetic mapping community. Methods for locating these quantitative trait loci (QTL) relative to maps of genetic markers are now widely used. This paper addresses an issue common to all QTL mapping methods, that of determining an appropriate threshold value for declaring significant QTL effects. An ...

2006
Branko Ćurgus Robert I. Jewett

Let t 0. Select numbers randomly from the interval [0, 1] until the sum is greater than t. Let (t) be the expected number of selections. We prove that (t) = et for 0 t 1. Moreover, limt→+∞ ( (t)− 2t)= 3 . This limit is a special case of our asymptotic results for solutions of the delay differential equation f ′(t) = f (t) − f (t − 1) for t > 1. We also consider four other solutions of this equa...

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