Corrections to Tribimaximal Mixing from Nondegenerate Phases

We propose a seesaw scenario that possible corrections to the tribimaximal pattern of lepton mixing are due to the small phase splitting of the right-handed neutrino mass matrix. we show that the small deviations can be expressed analytically in terms of two splitting parameters($\delta_1$ and $\delta_2$) in the leading order. The solar mixing angle $\theta_{12}$ favors a relatively smaller value compared to zero order value ($35.3^\circ$), and the Dirac type CP phase $\delta$ chooses a nearly maximal one. The two Majorana type CP phases $\rho$ and $\sigma$ turn out to be a nearly linear dependence. Also a normal hierarchy neutrino mass spectrum is favored due to the stability of perturbation calculations.Comment: 19 pages 6 figures, Accepted by Mod. Phy. Lett.

Left-Right Asymmetry of Weak Interaction Mass of Polarized Fermions in Flight

The left-right polarization-dependent asymmetry of the weak interaction mass is investigated. Based on the Standard Model, the calculation shows that the weak interaction mass of left-handed polarized fermions is always greater than that of right-handed polarized fermions in flight with the same velocity in any inertial frame. The asymmetry of the weak interaction mass might be very important to the investigation of neutrino mass and would have an important significance for understanding the parity nonconservation in weak interactions.Comment: 8 pages, 2 figures, corrected calculatio

Neutrino Factories: Physics Potential

The physics potential of low-performance and high-performance neutrino factories is briefly reviewed..Comment: Talk presented at NUFACT02, London, 1-6 July, 2002. 8 pages, 5 figure

Papillae associated with the spinneret in some soil nematodes

This article does not have an abstract

Molybdenumisotopes in plume-influenced MORBs reveal recycling of ancient anoxic sediments

Under modern oxidising Earth surface conditions, dehydrated subducted slabs show Mo isotope compositions as low as δ98/95Mo = −1.5 ‰, compared to the depleted mantle δ98/95Mo = −0.2 ‰. Such light Mo isotope compositions reflect the redoxdependent aqueous mobility of isotopically heavy Mo associated with slab dehydration. Here we analysed basaltic glasses from the South-Mid Atlantic Ridge, whose parental melts are influenced by the enriched Discovery and Shona mantle plumes. We report increasingly higher δ98/95Mo of up to −0.1‰from the most depleted samples towards those tapping more enriched mantle sources. δ98/95Mo values correlate with radiogenic Sr and Nd isotopes, which indicates the recycling of Proterozoic sediments with a Mo isotopic composition that was not affected by subduction-related, oxic dehydration. We propose that the Mo isotope signatures were retained during subduction and reflect anoxic conditions during deep sea sedimentation in the mid-Proterozoic. Finally, Mo isotope fractionation between different terrestrial reservoirs likely depends on the slab redox budget, and therefore on the timing of subduction with regard to Earth’s surface oxygenation.Swiss National Science Foundation (SNSF) 1NF40-141881 Swiss National Science Foundation (SNSF)European Commission 636808European Research Council (ERC) RYC2020-030014-ISpanish Government 18250

UAV-Empowered Disaster-Resilient Edge Architecture for Delay-Sensitive Communication

The fifth-generation (5G) communication systems will enable enhanced mobile broadband, ultra-reliable low latency, and massive connectivity services. The broadband and low-latency services are indispensable to public safety (PS) communication during natural or man-made disasters. Recently, the third generation partnership project long term evolution (3GPPLTE) has emerged as a promising candidate to enable broadband PS communications. In this article, first we present six major PS-LTE enabling services and the current status of PS-LTE in 3GPP releases. Then, we discuss the spectrum bands allocated for PS-LTE in major countries by international telecommunication union (ITU). Finally, we propose a disaster resilient three-layered architecture for PS-LTE (DR-PSLTE). This architecture consists of a software-defined network (SDN) layer to provide centralized control, an unmanned air vehicle (UAV) cloudlet layer to facilitate edge computing or to enable emergency communication link, and a radio access layer. The proposed architecture is flexible and combines the benefits of SDNs and edge computing to efficiently meet the delay requirements of various PS-LTE services. Numerical results verified that under the proposed DR-PSLTE architecture, delay is reduced by 20% as compared with the conventional centralized computing architecture.Comment: 9,

Two new species of Plectidae from India (Nematoda : Araeolaimida)

Deux nouvelles espèces de #Plectidae sont décrites et illustrées. #Tylocephalus palmatus n. sp. présente les caractères suivants : L = 0,41-0,61 mm; a = 14-18; b = 3,6-4,3; c = 13,1-13,9; V = 42-49. Cette nouvelle espèce est proche de #T. auriculatus (Buetschli, 1873) Anderson, 1966 et de #T. andinus Zell, 1993. #Plectus refusus n. sp. présente les caractères suivants : L = 0,38-0,44 mm; a = 18-26; b = 3,08-3,93; c = 6,25-8,65; V = 41-53. Cette nouvelle espèce est proche de #P. geophilus de Man, 1880. (Résumé d'auteur

Description and developmental biology of Plectus zelli n.sp. (Nematoda : Araeolaimida)

Plectus zelli n. sp. is described and illustrated. It is closely related to P. opisthocirculus Andrassy, 1952 and P. inquirendus Andrassy, 1958, and also to P. sambesii Micolctzky, 1916. It has L = 0.57-0.83 mm, a = 18-26, b = 3.5-5.0, c = 8-13, V = 45-56; a continuous lip region, cephalic setae not reaching the apex of the cephalic region and paired lateral alae. P. zelli n. sp. reproduces by parthenogenesis, its embryonation time varies from 18-20 h. The first stage juveniles have paired primordia each of which form one sexual branch. The flexure in the ovary is formed at the time of the fouruh and final moulting. The total duration of life cycle from egg to adult is 7 to 9 days at 28 ± 2 °C