Side effects of oxamyl on tomato [Lycopersicon esculentum Mill.; Campania] Russo, G. (Naples Univ., Portici (Italy). Dipartimento di Entomologia e Zoologia Agraria); Carella, D. (Regione Campania, Naples (Italy). Servizio di Sperimentazione, Informazione, Ricerca, Consulenza in Agricoltura); Bassi, A. (DuPont de Nemours Italiana S.p.A., Cologno Monzese, Milan (Italy)) ...
Atti delle Giornate Fitopatologiche (Italy),
(2004)
Conference Proceeding
Oxamyl, when applied to tomato plants, showed positive side effects on the plant development and yield, without any symptom of phytotoxicity
L'oxamyl, comunque applicato, ha evidenziato effetti ...collaterali positivi sullo sviluppo delle piante e sulle rese produttive, non facendo emergere alcun fenomeno di fitotossicità
Neutrino deep-inelastic scattering provides a means to study both the strange and charm content of the nucleon. The NuTeV experiment (Fermilab E-8Neutrino deep-inelastic scattering provides a means ...to study both the strange and charm content of the nucleon. The NuTeV experiment (Fermilab E-815) takes full advantage of separated neutrino and anti-neutrino beams to probe the nucleon. The strange sea is studied with charged-current charm production resulting in an opposite-signed two muon final state. The charm content of the nucleon is probed via neutral-current charm production creating an event with a single wrong-signed muon. Preliminary results are presented for both analyses.
The NuTeV experiment uses neutrino deep-inelastic scattering from separate neutrino and anti-neutrino beams to study the structure of the nucleon. Charged-current production of charm is sensitive to ...the strange content of the nucleon while neutral-current charm production probes the charm content. Preliminary analyses of both topics are presented along with discussion of possible momentum asymmetry in the strange sea.
The NuTeV experiment at Fermilab presents a determination of the electroweak mixing angle. High purity, large statistics samples of muon-neutrino and muon-antineutrino events allow the use of the ...Paschos-Wolfenstein relation. This considerably reduces systematic errors associated with charm production and other sources. With Standard Model assumptions, this measurement of sin2thw indirectly determines the W boson mass to a precision comparable to direct measurements from high energy e+e- and p-pbar colliders. NuTeV measures sin^2theta_W (on-shell) = 0.2253 +/- 0.0019(stat) +/- 0.0010(syst) which implies M_W = 80.26 +/- 0.11 GeV.
We report the measurement of sin^2 theta_W in nu N deep inelastic scattering from the NuTeV experiment. By using separate neutrino and anti-neutrino beams, NuTeV is able to determine sin^2 theta_W ...with smaller systematic and similar or smaller statistical errors when compared to previous neutrino experiments. NuTeV measures sin^2 theta_W (on-shell) = 0.2253 +/- 0.0019(stat.) +/- 0.0010(sys.), which implies M_W = 80.26 +/- 0.11 GeV/c^2.
Most children with Autism Spectrum Disorder (ASD) have co-occurring language impairments and some of these autism-specific language difficulties are also present in their non-autistic first-degree ...relatives. One of the possible neural mechanisms associated with variability in language functioning is alterations in cortical gamma-band oscillations, hypothesized to be related to neural excitation and inhibition balance.
We used a high-density 128-channel electroencephalography (EEG) to register brain response to speech stimuli in a large sex-balanced sample of participants: 125 youth with ASD, 121 typically developing (TD) youth, and 40 unaffected siblings (US) of youth with ASD. Language skills were assessed with Clinical Evaluation of Language Fundamentals.
First, during speech processing, we identified significantly elevated gamma power in ASD participants compared to TD controls. Second, across all youth, higher gamma power was associated with lower language skills. Finally, the US group demonstrated an intermediate profile in both language and gamma power, with nonverbal IQ mediating the relationship between gamma power and language skills.
We only focused on one of the possible neural contributors to variability in language functioning. Also, the US group consisted of a smaller number of participants in comparison to the ASD or TD groups. Finally, due to the timing issue in EEG system we have provided only non-phase-locked analysis.
Autistic youth showed elevated gamma power, suggesting higher excitation in the brain in response to speech stimuli and elevated gamma power was related to lower language skills. The US group showed an intermediate pattern of gamma activity, suggesting that the broader autism phenotype extends to neural profiles.
Clinical trials in autism spectrum disorder (ASD) often rely on clinician rating scales and parent surveys to measure autism‐related features and social behaviors. To aid in the selection of these ...assessments for future clinical trials, the Autism Biomarkers Consortium for Clinical Trials (ABC‐CT) directly compared eight common instruments with respect to acquisition rates, sensitivity to group differences, equivalence across demographic sub‐groups, convergent validity, and stability over a 6‐week period. The sample included 280 children diagnosed with ASD (65 girls) and 119 neurotypical children (36 girls) aged from 6 to 11 years. Full scale IQ for ASD ranged from 60 to 150 and for neurotypical ranged from 86 to 150. Instruments measured clinician global assessment and autism‐related behaviors, social communication abilities, adaptive function, and social withdrawal behavior. For each instrument, we examined only the scales that measured social or communication functioning. Data acquisition rates were at least 97.5% at T1 and 95.7% at T2. All scales distinguished diagnostic groups. Some scales significantly differed by participant and/or family demographic characteristics. Within the ASD group, most clinical instruments exhibited weak (≥ |0.1|) to moderate (≥ |0.4|) intercorrelations. Short‐term stability was moderate (ICC: 0.5–0.75) to excellent (ICC: >0.9) within the ASD group. Variations in the degree of stability may inform viability for different contexts of use, such as identifying clinical subgroups for trials versus serving as a modifiable clinical outcome. All instruments were evaluated in terms of their advantages and potential concerns for use in clinical trials.
Lay Summary
Evaluating interventions for autism often relies on clinician rating scales and parent surveys to measure results. We compared several common measurement instruments to evaluate which were most likely to be completed, distinguished children with and without ASD, and were impacted by participant and family characteristics. We also examined whether the instruments measured similar aspects of social ability and provided consistent scores across a short period of time. Results may be used to guide better selection of tests for future studies of autism interventions.
Data from the CCFR E770 Neutrino Deep Inelastic Scattering (DIS) experiment at Fermilab contain events with large Bjorken x (x>0.7) and high momentum transfer (Q^2>50 (GeV/c)^2). A comparison of the ...data with a model based on no nuclear effects at large x, shows a significant excess of events in the data. Addition of Fermi gas motion of the nucleons in the nucleus to the model does not explain the excess. Adding a higher momentum tail due to the formation of ``quasi-deuterons'' makes some improvement. An exponentially falling F_2 \propto e^-s(x-x_0) at large x, predicted by ``multi-quark clusters'' and ``few-nucleon correlations'', can describe the data. A value of s=8.3 \pm 0.7(stat.)\pm 0.7(sys.) yields the best agreement with the data.
Postprandial dyslipidemia is recognized as an important complication of insulin-resistant states, and recent evidence implicates intestinal lipoprotein overproduction as a causative factor. The ...mechanisms linking intestinal lipoprotein overproduction and aberrant insulin signaling in intestinal enterocytes are currently unknown. Intestinal insulin sensitivity and lipid metabolism were studied in a fructose-fed hamster model of insulin resistance and metabolic dyslipidemia. Intestinal lipoprotein production in chow-fed hamsters was responsive to the inhibitory effects of insulin, and a decrease in circulating levels of triglyceride-rich apolipoprotein (apo)B48-containing lipoproteins occurred 60 min after insulin administration. However, fructose-fed hamster intestine was not responsive to the insulin-induced downregulation of apoB48-lipoprotein production, suggesting insulin insensitivity at the level of the intestine. Enterocytes from the fructose-fed hamster exhibited normal activity of the insulin receptor but reduced levels of insulin receptor substrate-1 phosphorylation and mass and Akt protein mass. Conversely, the protein mass of the p110 subunit of phosphatidylinositol 3-kinase, protein tyrosine phosphatase-1B, and basal levels of phosphorylated extracellular signal-related kinase (ERK) were significantly increased in the fructose-fed hamster intestine. Modulating the ERK pathway through in vivo inhibition of mitogen-activated protein/ERK kinase 1/2, the upstream activator of ERK1/2, we observed a significant decrease in intestinal apoB48 synthesis and secretion. Interestingly, enhanced basal ERK activity in the fructose-fed hamster intestine was accompanied by an increased activation of sterol regulatory element-binding protein. In summary, these data suggest that insulin insensitivity at the level of the intestine and aberrant insulin signaling are important underlying factors in intestinal overproduction of highly atherogenic apoB48-containing lipoproteins in the insulin-resistant state. Basal activation of the ERK pathway may be an important contributor to the aberrant insulin signaling and lipoprotein overproduction in this model.
Observations on bud fertility in eight grapevines (Vitis vinifera L.) Forlani, M; Gioffe, D. (Naples Univ. (Italy). Istituto di Coltivazioni Arboree); Coppola, V. (Scuola di Viticoltura e di Enologia, Conegliano Veneto (Italy))
Rivista di Viticoltura e di Enologia (Italy),
(Aug 1981), Letnik:
34, Številka:
8
Journal Article
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