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Charged Scalars in Transient Stellar Electromagnetic Fields

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Chinese Physics Letters 2011年第1期28卷 20-23页

作者： marina-Aura Dariescu Ciprian Dariescu Ovidiu Buhucianu Faculty of Physics A1. I. Cuza' University Bd. Carol I No. 11 700506 Iaoi Romania

We consider a non-rotating strongly magnetized object, whose magnetic induction is of the form Bx= Bo （t） sin kz. In the electromagnetic field generated by only one component of the four-vector potential, we solve the Klein- Gordon equation and discuss the sudden growth of the scalar wave functions for wavenumbers inside computable ranges. In the case of unexcited transversal kinetic degrees, we write down the recurrent differential system for the amplitude functions and compute the respective conserved eurrents.

关键词： Astrophysics and astroparticles

Silver impregnated carbon for adsorption and desorption of elemental mercury vapors

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Journal of Environmental Sciences 2011年第9期23卷 1578-1583页

作者： Despina Karatza marina Prisciandaro Amedeo Lancia Dino Musmarra Dipartimento di Ingegneria Chimica Universitàdi Napoli "Federico II" Dipartimento di Chimica Ingegneria Chimica e MaterialiUniversitàde L’Aquila Centro Interdipartimentale di Ricerca in Ingegneria Ambientale Dipartimento di Ingegneria CivileSeconda Universitàdegli Studi di NapoliReal Casa dell’AnnunziataVia Roma 2981031 Aversa (CE)Italy

The Hg 0 vapor adsorption experimental results on a novel sorbent obtained by impregnating a commercially available activated carbon （Darco G60 from BDH） with silver nitrate were *** study was performed by using a fundamental approach,in an apparatus at laboratory scale in which a synthetic flue gas,formed by Hg 0 vapors in a nitrogen gas stream,at a given temperature and mercury concentration,was flowed through a fixed bed of adsorbent *** curves and adsorption isotherms were obtained for bed temperatures of 90,120 and 150°C and for Hg 0 concentrations in the gas varying in the range of 0.8–5.0 mg/m 3 .The experimental gas-solid equilibrium data were used to evaluate the Langmuir parameters and the heat of *** experimental results showed that silver impregnated carbon was very effective to capture elemental mercury and the amount of mercury adsorbed by the carbon decreased as the bed temperature *** addition,to evaluate the possibility of adsorbent recovery,desorption was also *** runs showed that both the adsorbing material and the mercury could be easily recovered,since at the end of desorption the residue on solid was almost *** material balance on mercury and the constitutive equations of the adsorption phenomenon were integrated,leading to the evaluation of only one kinetic parameter which fits well both the experimentally determined breakthrough and desorption curves.

关键词： mercury carbon MSW incinerators adsorption desorption silver nitrate

Evolution of anti-lgE treatment

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Cellular & Molecular Immunology 2016年第3期13卷 409-410页

作者： Cristoforo Incorvaia marina Mauro Allergy/Pulmonary Rehabilitation Istituti Clinici di Perfezionamento Hospital Milan Italy Allergy Unit Sant'Anna Hospital Como italy

The central role played by IgE antibodies in the pathophysiology of allergic diseases makes anti-IgE treatment of paramount importance. However, the development of anti-IgE drugs has taken more than two decades, from the first in vitro experiments in the 1970s to the availability of omalizumab as a safe and effective agent. Omalizumab was evaluated in a large number of studies following its approval by regulatory agencies for the treatment of severe allergic asthma not controlled by standard drug therapy.

关键词： OMALIZUMAB ASTHMA

An Experimental Investigation of the Dissipation Mechanisms in the Suction Side Boundary Layer of a Turbine Blade

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Journal of Thermal Science 2008年第4期17卷 289-297页

作者： Francesca Satta Daniele Simoni marina Ubaldi Pietro Zunino Dipartimento di Macchine Sistemi Energetici e Trasporti-Università di Genova

The present work is part of an extensive experimental activity carried out by the authors in recent years aimed at investigating the boundary layer transition phenomenon in turbine blades. The large scale of the cascade and the use of advanced LDV instrumentation and precision probe traversing mechanism resulted in high degree of spatial resolution and high accuracy of measurements. The main dissipation mechanism determining the profile losses in turbomachinery blades is the work of deformation of the mean motion within the boundary layer operated by both viscous and turbulent shear stresses. In the present paper, the local viscous and turbulent deformation works have been directly evaluated from the detailed measurements of boundary layer mean velocity and Reynolds shear stress. The results show the distributions and the relative importance of the viscous and turbulent contributions to the loss production, in relation with the boundary layer states occurring along the turbine profile.

关键词： Axial flow turbines Profile boundary layer Energy dissipation mechanism Boundary layer transition Laser Doppler measurements.

Population specific fitness response of Drosophila subobscura to lead pollution

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Insect Science 2013年第2期20卷 245-253页

作者： Bojan Kenig marina Stamenkovic-Radak Marko Andelkovic Institute for Biological Research Sinia Stankovic University of Belgrade Faculty of Biology University of Belgrade Serbian A cademy of Sciences and Arts Belgrade Serbia

Differences in heavy metal tolerance among separate populations of the same species have often been interpreted as local adaptation. Persistence of differences after removing the stressor indicates that mechanisms responsible for the increased tolerance were genetically determined. Drosophila subobscura Collin （Diptera： Drosophilidae） pop- ulations were sampled from two localities with different history of heavy metal pollution, and reared for eight generations in the laboratory on a standard medium and on media with different concentrations of lead （Pb）. To determine whether flies from different natural populations exposed to the Pb-contaminated media in the laboratory show population spe- cific variability in fitness components over generations, experimental groups with different concentrations of lead were assayed in three generations （F2, Fs, and Fs） for fecundity, de- velopmental time, and egg-to-adult viability. On the contaminated medium, fecundity was reduced in later generations and viability was increased, irrespective of the environmental origin of populations. For both populations, developmental time showed a tendency of slowing down on media with lead. Faster development was observed in later generations. Preadaptation to contamination, meaning higher fecundity, higher viability, and faster egg to adult development in all studied generations, was found in D. subobscura originating from the locality with a higher level of heavy metal pollution,

关键词： environmental background fitness components heavy metal interpopulation differences laboratory evolution local adaptation

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氨基酸组合物护发功效及机理探究

日用化学工业（中英文） 2024年第9期54卷 1059-1068页

作者：范加谊喻文莘卞筱颖岳岭佳王靖常宽江南大学化学与材料工程学院江苏无锡214122 联合利华(中国)投资有限公司上海200335

为了研究氨基酸组合物对损伤头发的修护功效,通过拉伸测试、梳理测试等方法评价了氨基酸原料对于发丝的修护效果,实验结果表明:测试中氨基酸组合物原料可以使屈服区拉力提升29.4%,使头发的梳理功分别下降22.4%(干梳)、18.1%(湿梳)。通... 详细信息

为了研究氨基酸组合物对损伤头发的修护功效,通过拉伸测试、梳理测试等方法评价了氨基酸原料对于发丝的修护效果,实验结果表明:测试中氨基酸组合物原料可以使屈服区拉力提升29.4%,使头发的梳理功分别下降22.4%(干梳)、18.1%(湿梳)。通过谱学表征以及荧光渗透试验和应力松弛试验的结果,可以认为氨基酸组合物通过渗透进入发丝的方式,修护其中被破坏的化学键、提高分子间作用力从而达到增韧的效果,并使得发丝脂质向头发表面聚集,对头发表面性质起到修护效果,改善了头发的梳理性,特别是对烫发染发导致的受损头发具有显著的修护效果。

关键词：氨基酸头发护理化学键拉伸性能仿生氨基酸

Targeting Janus tyrosine kinase 3 （JAK3） with an inhibitor induces secretion of TGF-β by CD4＋ T cells

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Cellular & Molecular Immunology 2012年第4期9卷 350-360页

作者： marina Cetkovic-Cvrlje Marin Olson Ketaki Ghate Department of Biological Sciences St. Cloud State University St. Cloud MN USA Laboratory for Immunology St. Cloud State University St. Cloud MN USA

Regulatory T cells （Tregs） are critical for the peripheral maintenance of the autoreactive T cells in autoimmune disorders such as type 1 diabetes （TID）. Pharmacological inhibition of Janus tyrosine kinase 3 （JAK3） has been proposed as a basis for new treatment modalities against autoimmunity and allogeneic responses. Targeting JAK3 with an inhibitor has previously been shown to exhibit protective action against the development of T 1D in non-obese diabetic （NOD） mice. As the mechanism of such preventative action has been unknown, we hypothesized that JAK3 inhibition induces generation of Tregs. Here, we show that the JAK3 inhibitor 4-（4＇-hydroxyphenyl）-amino-6,7-dimethoxyquinazoline （WHI-P131） suppresses proliferation of short-term cultured NOD CD4＋ T cells through induction of apoptosis, while promoting survival of a particular population of long-term cultured cells. It was found that the surviving cells were not of the CD4＋CD25＋FoxP3＋ phenotype. They secreted decreased amounts of IL-IO, IL-4 and interferon （IFN）-y compared to the cells not exposed to the optimal concentrations of JAK3 inhibitor. However, an elevated transforming growth factor （TGF）-β secretion was detected in their supernatants. In vivo treatment of prediabetic NOD mice with WHI-P131 did not affect the frequency and number of splenic and pancreatic lymph node CD4＋FoxP3＋ Tregs, while generating an elevated numbers of CD4＋FoxP3- TGF-β-secreting T cells. In conclusion, our data suggest an induction of TGF-β-secreting CD4＋ T cells as the underlying mechanism for antidiabetogenic effects obtained by the treatment with a JAK3 inhibitor. To our knowledge, this is the first report of the JAK3 inhibitor activity in the context of the murine Tregs.

关键词： FoxP3 Janus tyrosine kinase 3 (JAK3) inhibition regulatory T cells (Tregs) TGF-β type 1 diabetes (TID)

Tunneling of Relativistic Bosons Induced by Magnetic Fields in the Magnetar’s Crust

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Chinese Physics Letters 2015年第10期32卷 26-29页

作者： marina-Aura Dariescu Ciprian Dariescu Denisa-Andreea Mihu Faculty of Physics Alexandru Ioan Cuza University of Iasi Bd

The present work is devoted to the study of bosons evolving in the frozen magnetar＇s crust endowed with an ultra-strong magnetic field orthogonal to an electric field, both described by periodic functions. We discuss the quantum tunneling process through the one-dimensional potential barrier along Oz. The solutions to the Klein- Gordon equation are expressed in terms of Mathieu＇s functions which, for computable particle＇s energy range, are turning from oscillatory to exponentially growing modes along Oz. Within the Jeffreys Wentzel Kramers- Brillouin framework, the transmission coefficient is computed for the particle momentum in the middle of the instability range.

关键词： Tunneling of Relativistic Bosons Induced by Magnetic Fields in the Magnetar’s Crust

Sediment regime of the Danube River in Serbia

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International Journal of Sediment Research 2013年第4期28卷 470-485页

作者： marina BABIC MLADENOVIC Vasiljka KOLAROV Vanja DAMJANOVIC Jaroslav Cerni Institute for the Development of Water Resources Department for River Engineering

The total length of the Danube section in Serbia is 587.5 km,and it has three specific sections:(1) Pannonian Plain Danube(or the Middle Danube) has all characteristics of lowland *** stretch downstream of Novi Sad is under the influence of the Iron Gate 1 backwater during low water flows;(2) Iron Gate Danube,where the river is confined in the *** it is a reservoir,with completely altered natural characteristics.(3) Western Pontic Danube(or the Lower Danube),downstream of the *** paper presents the sediment regime in the Serbian sector of the Danube River,both upstream and within the Iron Gate *** field investigation data were used to describe the most important parameters of sediment transport and deposition processes,including riverbed composition and suspended sediment characteristics(grain size and concentration).The influence of large tributaries of the Danube(the Tisza,the Sava,and the Velika Morava) is also *** conducted in the Iron Gate 1reservoir under the Sediment Regime and Morphological Changes Monitoring Program is also *** obtained during implementation of the Program form the basis for the description of changes in the Danube sediment regime that occurred following erection of the Iron Gate *** revealed that the most important consequence of the Iron Gate I IIPNS Dam is permanent deposition of sediment in the Iron Gate Gorge portion of the reservoir,the water and environmental management implications of which are becoming increasingly ***,upstream stretches of the reservoir are not subject to uniform sedimentation processes;instead,the sediment regime depends on current hydrologic and hydraulic conditions within the watercourse and/or the hydro-power plant operating mode.

关键词： Sediment regime Morphological changes Danube Serbia