Online persuasion: An examination of gender differences in computer-mediated interpersonal influence.

The purpose of this research was to investigate how computer-mediated communication affects persuasion in dyadic interactions. Two studies compared participants' attitudes after hearing a series of arguments from a same-gender communicator via either e-mail or face-to-face interaction. In Study 1, women showed less message agreement in response to e-mail versus face-to-face messages, whereas men showed no difference between communication modes. Study 2 replicated this finding and examined the impact of prior interaction with the communicator. For women, the condition that provided the least social interaction led to the least message agreement. For men, the condition that provided the most social challenge led to the least message agreement. Results are interpreted in terms of gender differences in interaction style. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Characterization and upgrading of bio-oils produced by rapid thermal processing

Flash pyrolysis oils have a high oxygen content. The presence of numerous and various oxygenated functions give these oils unwanted characteristics that may be improved by the elimination of oxygen by catalytic hydrotreating. This paper deals with the chemical characterization of RTP oils by liquid-liquid fractionation followed by mass spectrometric determination of the individual compounds. In a second part, the hydrodeoxygenation reactions were approached using model compounds selected on the basis of the characterization.

The CH₂Cl₂ acidic fractions of the oils are mainly composed of phenolic structures. Nevertheless, the phenolic molecules are differently substituted depending on the pyrolysis conditions: carboxyl and carbonyl groups for short residence times and methoxy groups for long residence times. All the main chemical groups present in pyrolysis oils can be eliminated using nickel-molybdenum and cobalt-molybdenum traditional hydrotreating catalysts. The reactivity, the activation energies and the products of the hydrodeoxygenation conversion of the various oxygenated groups were determined.     

Epirubicin in hepatocellular carcinoma: pharmacokinetics and clinical activity

BACKGROUND: Severe combined immunodeficient (SCID) mice develop Epstein-Barr virus (EBV) containing human lymphoproliferative disease (LPD) tumors when reconstituted with human peripheral blood leukocytes (PBLs) from EBV-seropositive donors, but LPD tumors do not develop in the presence of immunosuppressive agents, such as cyclosporine A or corticosteroids. METHODS: Therefore, LPD development in SCID mice was used as a model to explore the relationship among B cells, T cells, and EBV in vivo. SCID mice were engrafted with PBLs isolated by leukapheresis from a single EBV-seropositive donor. Purified populations of CD3+ lymphocytes (T cells) or CD19+ lymphocytes (B cells) were isolated and engrafted into SCID mice. RESULTS: SCID mice engrafted with purified CD3+ lymphocytes (T cells) or CD19+ lymphocytes (B cells) did not develop LPD. In contrast, mice engrafted with purified B cells developed LPD if they were co-engrafted with purified T cells or if they were inoculated with infectious EBV. CONCLUSIONS: This study confirms the requirement of T cells or active EBV infection in the development of LPD in animals engrafted with B cells latently infected with EBV. A greater understanding of the cellular and viral interactions leading to transformation and malignancy may allow the development of specific interventional therapies for malignancies in the immunosuppressed host.     

How Are Social Identities Linked to Self-Conception and Intergroup Orientation? The Moderating Effect of Implicit Theories.

Social identity approaches assume that social identification affects both self-conception and intergroup orientation. The authors contend that such social identification effects are accentuated when people hold a fixed view of human character and attribute immutable dispositions to social groups. To these individuals, social identities are immutable, concrete entities capable of guiding self-conception and intergroup orientation. Social identification effects are attenuated when people hold a malleable view of human character and thus do not view social identities as fixed, concrete entities. The authors tested and found support for this contention in three studies that were conducted in the context of the Hong Kong 1997 political transition, and discussed the findings in terms of their implications for self-conceptions and the meaning of social identification. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Experimental validation of a spectral direct solar radiation model

A model of spectral direct radiation of the sun at the ground compared with the spectral measurements performed by a monochromator has evidenced a satisfactory agreement. However, some discrepancies, mainly in the shorter wavelength range, have been evaluated. In order to point out the causes of these discrepancies, long series of data of direct integral radiation, water vapour content, aerosol turbidity together with standard meteorological data have been performed. These causes are defined by means of a statistical analysis.     

Dating deception: Gender,online dating,and exaggerated self-presentation

This study examined how differences in expectations about meeting impacted the degree of deceptive self-presentation individuals displayed within the context of dating. Participants filled out personality measures in one of four anticipated meeting conditions: face-to-face, email, no meeting, and a control condition with no pretense of dating. Results indicated that, compared to baseline measures, male participants increased the amount they self-presented when anticipating a future interaction with a prospective date. Specifically, male participants emphasized their positive characteristics more if the potential date was less salient (e.g., email meeting) compared to a more salient condition (e.g., face-to-face meeting) or the control conditions. Implications for self-presentation theory, online social interaction, and online dating research will be discussed.     

Lactoferrin,Quercetin, and Hydroxyapatite Act Synergistically against Pseudomonas fluorescens

Pseudomonas fluorescens is an opportunistic, psychotropic pathogen that can live in different environments, such as plant, soil, or water surfaces, and it is associated with food spoilage. Bioactive compounds can be used as antimicrobials and can be added into packaging systems. Quercetin and lactoferrin are the best candidates for the development of a complex of the two molecules absorbed on bio combability structure as hydroxyapatite. The minimum inhibiting concentration (MIC) of single components and of the complex dropped down the single MIC value against Pseudomonas fluorescens. Characterization analysis of the complex was performed by means SEM and zeta-potential analysis. Then, the synergistic activity (C_syn) of single components and the complex was calculated. Finally, the synergistic activity was confirmed, testing in vitro its anti-inflammatory activity on U937 macrophage-like human cell line. In conclusion, the peculiarity of our study consists of optimizing the specific propriety of each component: the affinity of lactoferrin for LPS; that of quercetin for the bacterial membrane. These proprieties make the complex a good candidate in food industry as antimicrobial compounds, and as functional food.     

Atrazine Inhalation Causes Neuroinflammation,Apoptosis and Accelerating Brain Aging

Background: exposure to environmental contaminants has been linked to an increased risk of neurological diseases and poor outcomes. Chemical name of Atrazine (ATR) is 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diamine, and it is the most commonly used broad-spectrum herbicide in agricultural crops. Several studies have demonstrated that ATR has the potential to be harmful to the brain’s neuronal circuits. Until today nobody has explored the effect of ATR inhalation on young and aged mice. Methods: young and aged mice were subject to 25 mg of ATR in a vehicle made with saline and 10% of Dimethyl sulfoxide (DMSO) every day for 28 days. At the end of experiment different behavioral test were made and brain was collected. Results: exposure to ATR induced the same response in terms of behavioral alterations and motor and memory impairment in mice but in aged group was more marked. Additionally, in both young and aged mice ATR inhalations induced oxidative stress with impairment in physiological antioxidant response, lipid peroxidation, nuclear factor kappa-light-chain-enhancer of activated B cells (nf-κb) pathways activation with consequences of pro-inflammatory cytokines release and apoptosis. However, the older group was shown to be more sensitive to ATR inhalation. Conclusions: our results showed that aged mice were more susceptible compared to young mice to air pollutants exposure, put in place a minor physiologically response was seen when exposed to it.     

Detection of feed-derived maize DNA in goat milk and evaluation of the potential of horizontal transfer to bacteria

The presence and the transforming capacity of feed-derived DNA in milk obtained from eight lactating goats fed on maize E176 silage were evaluated. The presence of single- and multi-copy maize genes was monitored by real-time PCR and conventional PCR. Chromosomal and plastid DNA extracted directly from maize flour and silage were readily amplifiable by conventional PCR, however, only chloroplast-specific gene fragments of 199 and 532 bp were detected in about 60 and 20%, respectively, of the milk samples analysed. Quantification by real time PCR yielded 9.5 (±6.7) × 10² plant gene copies/mL of milk sediment. In contrast, all milk samples were negative for the chromosomally located maize zein gene or the E176 specific cry1Ab transgene. The minimum concentration of plant DNA required for detection was 0.01 ng/mL raw milk for the chloroplast-specific fragment and 1 ng/mL for the cry1Ab transgene. The detection limit was determined by spiking milk samples with plant DNA prior to DNA extraction. The transformation capability of DNA in milk was evaluated after constructing a marker rescue system in Acinetobacter baylyi strain BD413 based on recombinational repair of the bla _TEM gene. Two systems were developed that allowed the plant marker gene to recombine with the bacterial chromosome [A. baylyi BD413 (pUC-bla)] or plasmids [A. baylyi BD413 (pBBR1MCS-2Φ)]. The two systems showed the same efficiency of transformation, yielding 10⁻⁵ transformants per recipient cell (t/r) using plasmid pUC18 or a 1,873 bp fragment as donor DNA, and 3.5 × 10⁻¹¹ t/r using DNA isolated from flour (E176). No transformants were detected when exposing the recipient bacterium to DNA extracted from maize (E176) silage or from milk obtained from goats feed maize (E176).     

Evaluation of nanocomposites containing graphene nanoplatelets: Mechanical properties and combustion behavior

Polypropylene (PP) nanocomposites containing graphene nanoplatelets (GNPs) with different loadings were fabricated via masterbatch compounding–melt blending processing technique. Morphological studies showed that the method employed provided uniform GNPs dispersion in the matrix, orienting the nanoplatelets along the same direction the flow of matter. Enhancements of storage and Young's modulus occurred, increasing GNP content, and the improvement was more obvious when a compatibilizer, the PP‐grafted‐maleic anhydride, was introduced to achieve a better GNP dispersion and distribution within the matrix. For all the nanocomposites, even for those compatibilized, it was not possible to fully exploit the GNP toughening effect since a stiffening and embrittling effect prevailed. Thermogravimetric analysis showed that GNP incorporation has improved the thermal stability of the nanocomposites. In addition, cone calorimetry results showed that GNPs can act as intumescent flame retardant and significantly reduced the heat release rate, thus improving the flame retardancy of the PP matrix. POLYM. ENG. SCI., 59:2062–2071, 2019. © 2019 Society of Plastics Engineers