Search results for "Tobacco"

Nuclear calcium signaling: An emerging topic in plants

2011

International audience; The calcium ion is probably one of the most studied second messenger both in plant and animal fields. A large number of reviews have browsed the diversity of cytosolic calcium signatures and evaluated their pleiotropic roles in plant and animal cells. In the recent years, an increasing number of reviews has focused on nuclear calcium, especially on the possible roles of nuclear calcium concentration variations on nuclear activities. Experiments initially performed on animal cells gave conflicting results that brought about a controversy about the ability of the nucleus to generate its own calcium signals and to regulate its calcium level. But in plant cells, several …

Externalizing Behaviors and Cigarette Smoking as Predictors for Use of Illicit Drugs: A Longitudinal Study Among Finnish Adolescent Twins

2010

We examined whether externalizing problem behaviors (hyperactivity–impulsivity, aggressiveness, and inattention) predict illicit drug use independently, or whether their associations with drug use are mediated through cigarette smoking. We used a prospective longitudinal design within theFinnTwin12-17study among Finnish adolescents with baseline at age 12 and follow-up surveys at ages 14 and 17. Path models were conducted withMplusand included 1992 boys and 2123 girls. The outcome was self-reported ever use of cannabis or other illicit drugs at age 17. The predictors were: externalizing behaviors (hyperactivity–impulsivity, aggressiveness, and inattention) assessed by teachers and parents (…

Plant iNOS: conquest of the Holy Grail

2003

In animals, nitric oxide (NO) is produced by a family of enzymes named nitric oxide synthases (NOSs). Although no NOS-like gene has been found in the Arabidopsis thaliana genome, biochemical studies have suggested that a NOS-like protein is likely to be activated in plants resisting pathogens. This protein has been recently identified as a variant P protein of glycine decarboxylase. This discovery means that studies of nitric oxide signalling functions in plants are now entering a new phase.

Application of pressurized fluid extraction to determine cadmium and zinc in plants

2006

Abstract A procedure for the determination of Cd and Zn in plants is proposed. The metals are extracted by pressurized fluid extraction (PFE). Operational conditions are: pressure 1500 psi, temperature 75 °C, static time 5 min, flush volume 35%, purge time 60 s, cycles 1 and 1,2-diaminocyclohexane- N , N , N ′, N ′-tetraacetic acid (CDTA) 0.01 M at pH 4.5 as extracting solution. Determination of Zn is carried out by flame atomic absorption spectroscopy and depending on the concentration level, Cd content is determined by flame or electrothermal atomic absorption spectroscopy. Certified samples of Virginia tobacco leaves, tea leaves, spinach leaves, poplar leaves, a commercial spinach sample…

Which are the communication styles of anti-tobacco spots that most impress adolescents?

2019

Abstract Objectives To evaluate emotions and opinions of Italian adolescents aged 13-18 years old about different anti-tobacco spots delivered by the mass media campaigns over the world. Methods A multicenter cross-sectional study was conducted. Italian students from different regions were enrolled. A video that collected 7 anti-tobacco spots from all over the world. The spots describe the tobacco dependence, the health damages and the tobacco components using different communication styles (funny, scientific, dramatic, comedians, shocking, and sad). Information on age, gender, smoking status of family and peers were gathered. Descriptive and univariate analysis of emotional and cognitive r…

Attitudes of Italian dental and dental hygiene students to tobacco-use cessation (TUC)

2008

Involvement of Lipoxygenase-dependent Production of Fatty Acid Hydroperoxides in the Development of the Hypersensitive Cell Death induced by Cryptoge…

1999

Lipid peroxidation was investigated in relation with the hypersensitive reaction in cryptogein-elicited tobacco leaves. A massive production of free polyunsaturated fatty acid (PUFA) hydroperoxides dependent on a 9-lipoxygenase (LOX) activity was characterized during the development of leaf necrosis. The process occurred after a lag phase of 12 h, was accompanied by the concomitant increase of 9-LOX activity, and preceded by a transient accumulation of LOX transcripts. Free radical-mediated lipid peroxidation represented 10% of the process. Inhibition and activation of the LOX pathway was shown to inhibit or to activate cell death, and evidence was provided that fatty acid hydroperoxides ar…

Gender and Sex in Medical Practice: An Exploratory Study on Knowledge, Behavior, and Attitude among Sicilian Physicians

2022

Personalized medicine is a new paradigm in health care, and the concept of socio-cultural gender, as opposed to biological sex, emerged in several medical approaches. This exploratory study aimed to investigate the knowledge of sex and gender in clinical medicine among Sicilian physicians. Data collection was based on an online survey sent to the members of the Medical Councils of Sicily (Italy). The questionnaire included nine specific items about awareness and attitudes regarding gender medicine and its importance in clinical practice. 8023 Sicilian physicians received the solicitation e-mail and only 496 responded. Regarding the knowledge of gender medicine, 71.1% of participants stated …

The Adolescent Label Impact Index in a Multicentric Observational Study. Have the Tobacco Advertisements an Impact on the Adolescents?

2020

Background: Pictorial warnings may contribute to lower attractiveness of smoking, particularly among adolescents. The present study compared the impact of two different label styles of tobacco product warnings (textual and pictorial) among adolescents in a new standardized way, using the Adolescent Label Impact Index (ALII). Methods: A school-based cross-sectional study was conducted. Adolescent aged 10–20 years completed an online questionnaire. The ALII score was used to assess the impact of only-textual (ALII-T) and pictorial advertisements (ALII-P). Results: A total of 1,759 students (68.4% response-rate) declared that graphic warnings have a significant impact than textual ones (p <…

Le tecniche investigative nel contrasto ai traffici di migranti, stupefacenti e sigarette

2019

The paper is aimed at analysing investigative techniques used in the fight against trafficking of migrants, drugs and tobaccos at national as well as at European level