Search results for "NIP"
showing 10 items of 775 documents
Membrane Insertion and Biogenesis of the Turnip Crinkle Virus p9 Movement Protein
2010
ABSTRACT Plant viral infection and spread depends on the successful introduction of a virus into a cell of a compatible host, followed by replication and cell-to-cell transport. The movement proteins (MPs) p8 and p9 of Turnip crinkle virus are required for cell-to-cell movement of the virus. We have examined the membrane association of p9 and found that it is an integral membrane protein with a defined topology in the endoplasmic reticulum (ER) membrane. Furthermore, we have used a site-specific photo-cross-linking strategy to study the membrane integration of the protein at the initial stages of its biosynthetic process. This process is cotranslational and proceeds through the signal recog…
A review of Devenir Soi by Jacques Attali: through the lenses of liberalism and Buddhism
2015
Purpose – The purpose of this paper is to reinterpret Attali’s worldview through the lenses of liberalism and Buddhism by mobilizing the relevant literature, beyond the mere book review. This paper is an essay based on the book “Devenir Soi” by Jacques Attali, published in France in 2014. These analytical grids were chosen, because freedom and self-realization are two themes that pervade the book. Design/methodology/approach – After presenting the book structure, the objective and the methodological approach, we uncover Attali’s interrogation, namely how to free oneself from the omnipresence of evil, the withering away of the State and growing xenophobic populist self-entitlement. We make …
Witt vectors and Fermat quotients
2008
Abstract We give a representation of any integer as a vector of the Witt ring W ( Z p ) and relate it to the Fermat quotient q ( n ) = ( n p − 1 − 1 ) / p . Logarithms are introduced in order to establish an isomorphism between the commutative unipotent groups 1 + p W ( Z p ) and W ( Z p ) .
Manipulation of nanoparticles of different shapes inside a scanning electron microscope
2014
In this work polyhedron-like gold and sphere-like silver nanoparticles (NPs) were manipulated on an oxidized Si substrate to study the dependence of the static friction and the contact area on the particle geometry. Measurements were performed inside a scanning electron microscope (SEM) that was equipped with a high-precision XYZ-nanomanipulator. To register the occurring forces a quartz tuning fork (QTF) with a glued sharp probe was used. Contact areas and static friction forces were calculated by using different models and compared with the experimentally measured force. The effect of NP morphology on the nanoscale friction is discussed.
Context-aware summary generation for Web pages
2009
General purpose search engines provide users with lists of retrieved documents in response to their queries. The common structure of list elements includes the title of a document, its URL, and small snippet from the text. Snippets are evidence of occurrences of query's keywords in the document. The length of each snippet is just a couple of lines. They cannot play a role of summaries of retrieved documents: In many cases, they are not indicative and users cannot judge on the relevancy of documents. In our approach we use ontology as context description and that ontology will be used to describe user's main interest with respect to wanted summary and help to select weighting of key words an…
"Table 1" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Experimental differential Thrust distributions.
Nanodiamond Theranostic for Light-Controlled Intracellular Heating and Nanoscale Temperature Sensing
2021
Temperature is an essential parameter in all biological systems, but information about the actual temperature in living cells is limited. Especially, in photothermal therapy, local intracellular temperature changes induce cell death but the local temperature gradients are not known. Highly sensitive nanothermometers would be required to measure and report local temperature changes independent of the intracellular environment, including pH or ions. Fluorescent nanodiamonds (ND) enable temperature sensing at the nanoscale independent of external conditions. Herein, we prepare ND nanothermometers coated with a nanogel shell and the photothermal agent indocyanine green serves as a heat generato…
Alma Mater: 2013/ Ziema
2013
Andra Čudare. Gribu saprast, kas ir aiz debess malas ; Indra Gleizde. Kā var nepatikt Gēte? Daudzšķautņainā personība Valdis Bisenieks; Gita Siliņa. Zinātne un kultūra viena otrai palīdz; Andra Čudare. Svētā Četrvienība Teoloģijas fakultātē; LU Preses centrs. 14 uzņēmumi zem viena jumta; Leonardo Patačini. No Buenosairesas līdz Rīgai; Lauma Abramoviča, Evija Ansonska, Ilze Jansone, Jeļena Poļakova, Kristīne Zaksa. Aizrautība ārpus Universitātes sienām; Aija Taimiņa. Rīgas pirmajai tipogrāfijai – 425; Katrīna Žukova. Japāna ienāk Universitātes sporta zālē; Mikus Žagata. «Austrums» – cauri trim gadsimtiem un kontinentiem; LU Preses centrs. Katru ceturtdienu paver mākoņa malu; Aktuāli notikumi…
Data structures and algorithms for topological analysis
2014
International audience; One of the steps of geometric modeling is to know the topology and/or the geometry of the objects considered. This paper presents different data structures and algorithms used in this study. We are particularly interested by algebraic structures, eg homotopy and homology groups, the Betti numbers, the Euler characteristic, or the Morse-Smale complex. We have to be able to compute these data structures, and for (homotopy and homology) groups, we also want to compute their generators. We are also interested in algorithms CIA and HIA presented in the thesis of Nicolas DELANOUE, which respectively compute the connected components and the homotopy type of a set defined by…
Performance Measurement of Mobile Manipulators
2015
International audience; This paper describes a concept for measuring the reproducible performance of mobile manipulators to be used for assembly or other similar tasks. An automatic guided vehicle with an onboard robot arm was programmed to repeatedly move to and stop at a novel, reconfigurable mobile manipulator artifact (RMMA), sense the RMMA, and detect targets on the RMMA. The manipulator moved a laser retroreflective sensor to detect small reflectors that can be reconfigured to measure various manipulator positions and orientations (poses). This paper describes calibration of a multi-camera,motion capture system using a 6 degree-of-freedom metrology bar and then using the camera system…