Toxic potency of quartz-containing dusts, including coal mine dusts, is usually inhibited by protective clay mineral layers on the surface of quartz particles. This investigation of 11 dusts recovered from lungs of coal miners with different silicosis grade shows that such layers persist during long-term contact with human lung tissues. On the other hand, the results suggest that an apparently ...

In the article, conditions of bioecological development pest species, dynamics during vegetation period and criterion harmfulness, types diseases are studied in fields. Information on biological effectiveness measures controlling pests encountered fields is given. KEY WORDS: cucurbits crops, melon, melon fly, porosity making diseases, control.

BACKGROUND We assessed whether the Australian plain packs with larger graphic health warnings (GHWs) achieved three specific objectives of reducing the appeal of tobacco, increasing health warning effectiveness and reducing the ability of packaging to mislead about smoking harms. METHODS We compared responses from continuous cross-sectional telephone surveys of n=2176 cigarette smokers during...

OBJECTIVE The purpose of this study was to determine how patients' beliefs about antihyperglycemic and antihypertensive medications relate to medication underuse and health status. RESEARCH DESIGN AND METHODS In diabetic patients from an economically distressed region, we assessed perceived necessity and harmfulness for antihyperglycemic (n = 803) and antihypertensive (n = 573) medications, p...

This article aims to discuss the crime of "pig-butchering scams" in securities market and its legal regulation. First, introduces definition harmfulness. Secondly, analyses current regulations on China. It points out problems, such as bottlenecks applying laws difficulty collecting evidence. Finally, suggests improving regulations, strengthening supervision reducing investor information asymmet...

One of the main drawbacks winter wheat varieties cultivated in Kazakhstan is their lack resistance to common root rot. In 2020-2022, samples affected by rot were taken earing phase stationary experiments department field crops and plant protection Kazakh research institute agriculture growing Almaty region. The aimed study harmfulness commercial wheat. weather did not significantly affect disea...

The purpose of the study was to identify forage plants and specialized entomophages wheat thrips in agrocenoses winter spring grain crops cultivated Samara region. highest number adult pests noted (2365.0 ind./100 strokes), lowest barley (565.0 strokes). Egg laying by thrip females occurred on all crops. Larvae were ears wheat, triticale, barley, with exception barley. During research, two iden...