A positive polarity focus particle under negation

Author(s):  
Pierre Larrivée
2002 ◽  
Vol 16 (2) ◽  
pp. 114-118 ◽  
Author(s):  
Timo Ruusuvirta ◽  
Heikki Hämäläinen

Abstract Human event-related potentials (ERPs) to a tone continuously alternating between its two spatial loci of origin (middle-standards, left-standards), to repetitions of left-standards (oddball-deviants), and to the tones originally representing these repetitions presented alone (alone-deviants) were recorded in free-field conditions. During the recordings (Fz, Cz, Pz, M1, and M2 referenced to nose), the subjects watched a silent movie. Oddball-deviants elicited a spatially diffuse two-peaked deflection of positive polarity. It differed from a deflection elicited by left-standards and commenced earlier than a prominent deflection of negative polarity (N1) elicited by alone-deviants. The results are discussed in the context of the mismatch negativity (MMN) and previous findings of dissociation between spatial and non-spatial information in auditory working memory.


Author(s):  
Azeb Amha

This chapter examines expressions of commands (imperatives) in Wolaitta and the ways in which the imperative is distinguished from statements and questions. Although each sentence type is formally distinct, imperatives and questions share a number of morpho-syntactic properties. Similar to declarative and interrogative sentences, imperatives in Wolaitta involve verbal grammatical categories such as the distinction of person, number, and gender of the subject as well as negative and positive polarity. In contrast to previous studies, the present contribution establishes the function of a set of morphemes based on -árk and -érk to be the expression of plea or appeal to an addressee rather than politeness when issuing a command. Instead, politeness in commands is expressed by using plural (pro)nominal and verbal elements. The imperative in Wolaitta is a robust construction which is also used in formulaic speeches such as leave-taking as well as in blessing, curses, and advice.


Author(s):  
Е.П. Харченко

Введение. Коронавирус SARS-CoV-2 является новым вирусом, обладающим способностью осуществлять трансмиссию воздушно-капельным путем, вызывая тяжелое течение атипичной пневмонии, нередко сочетающейся с коагулопатиями. Роль структурных белков коронавируса в их патогенезе неизвестна. Цель исследования: с помощью биоинформационного анализа выявить в структурных белках коронавируса SARS-CoV-2 последовательности, гомологичные белкам системы гемостаза, и рассмотреть возможные сценарии их участия в патогенезе коагулопатий при COVID-19, а также объяснить существование вирусостатического эффекта гепарина. Материалы и методы. Для компьютерного анализа были использованы доступные в Интернете базы данных первичных структур белков коронавирусов и их рецепторов, а также поверхностных белков других вирусов, белков системы гемостаза и иммунной системы. Сравнивали аминокислотный состав белков и распределение оснόвных аминокислот (аргинина и лизина) в их первичных последовательностях. С целью выявления пептидного (иммуноэпитопного) родства структурных белков коронавирусов с белками системы гемостаза человека был выполнен поиск гомологичных последовательностей в их белках. Результаты. В структурных белках коронавируса SARS-CoV-2 выявлено множество последовательностей, гомологичных белкам системы гемостаза и иммунной системы. В отличие от коронавирусов SARS-CoV и MERS-CoV, S1-субъединица S-белка коронавируса SARS-CoV-2 имеет положительную полярность. Заключение. Множество последовательностей в структурных белках коронавируса SARS-CoV-2, гомологичных белкам системы гемостаза, потенциально способны вы- зывать различные сценарии патогенеза коагулопатий. Положительная полярность S1-субъединицы S-белка коронавируса SARS-CoV-2 позволяет объяснить неспецифическое взаимодействие ее с гепарином и его вирусостатический (неантикоагулянтный) эффект. Background. The coronavirus SARS-CoV-2 is a new virus capable of human-human transmission and inducing a severe atypical pneumonia often associated with coagulopathy. A role of SARS-CoV-2 structural proteins in coagulopathy pathogenesis is unknown. Objectives: to use a bioinformation analysis to identify SARS-CoV-2 sequences in the structural proteins that are homologous to hemostasis system proteins, regard their possible participation in coagulopathy pathogenesis and explain the antiviral effect of heparin. Materials / Methods. For computer analysis, Internet databases were used of the primary structures of coronavirus proteins and their receptors, as well as surface proteins of other viruses, proteins of hemostasis and immune systems. The amino acid composition of proteins and the distribution of basic amino acids (arginine and lysine) in their primary sequences were compared. For detection of peptide (immunoepitopic) relationship of coronaviruses structural proteins with human hemostasis proteins, a search for homologous sequences in their proteins was performed. Results. Many sequences have been identified in structural proteins of SARS-CoV-2 coronavirus that are homologous to the proteins of hemostasis and immune systems. In contrast with SARS-CoV and MERS-CoV coronaviruses, the S1-subunit of SARS-CoV-2 coronavirus S-protein has a positive polarity. Conclusions. Many sequences in SARS-CoV-2 structural proteins that homologous to hemostasis system proteins are potentially responsible for coagulopathy pathogenesis. The positive polarity of the S1-subunit of SARS-CoV-2 S-protein explains its nonspecific interaction with heparin and its virostatic (non-anticoagulant) effect.


1997 ◽  
Vol 56 (10) ◽  
pp. R5744-R5746 ◽  
Author(s):  
Hiromichi Adachi ◽  
Hiromitsu Ino ◽  
Akihisa Koizumi ◽  
Nobuhiko Sakai ◽  
Yoshikazu Tanaka ◽  
...  

2006 ◽  
Vol 64 (3-4) ◽  
pp. 259-262 ◽  
Author(s):  
Janusz Podliński ◽  
Jarosław Dekowski ◽  
Jerzy Mizeraczyk ◽  
Drazena Brocilo ◽  
Jen-Shih Chang

2016 ◽  
Vol 17 (2) ◽  
pp. 1-11
Author(s):  
Sumiyo Nishiguchi

Abstract This article asserts that the Japanese wide-scope mo ‘even’ in simple sentences are bipolar items (BPIs) antilicensed or forbidden by negation and licensed in a non-monotonic (NM) environment. BPIs share the features of negative polarity items (NPIs) as well as positive polarity items (PPIs). The Dutch ooit ‘ever’, the Serbo-Croatian i-series ‘and/even’, and the Hungarian is-series ‘and/even’ are antilicensed by clausemate negation and licensed by extraclausal negation (van der Wouden, 1997; Progovac, 1994; Szabolcsi, 2002) or non-monotonic negative (and positive, for Serbo-Croatian) emotive predicates. Adding an NPI rescues BPIs in uncomfortable clausemate negation.


Author(s):  
Stephan Vogel ◽  
Joachim Holbøll

<p>This research investigates the impact of high velocity air flow on Partial Discharge (PD) patterns generated in strongly inhomogeneous fields. In the laboratory, a needle plane electrode configuration was exposed to a high electrical DC-field and a laminar air flow up to 22 m/s. The needle was connected to a variable DC potential of up to 100 kV over a grounded plate in order to trigger different corona modes. The impact of the air flow on the space charges created in the vicinity of the electrode is evaluated by means of PD measurements in time domain. The results indicate that the wind increases the frequency and magnitude of partial discharges in the vicinity of the electrode due to an increased rate of space charge removal around the tip of the needle and in the gap. The positive polarity shows higher dependency on air flow compared to the negative polarity. It is shown that positive breakdown streamer corona can be extinguished if wind speeds of more than 14.3 m/s are applied to the electrode.</p>


2017 ◽  
Vol 27 ◽  
pp. 266
Author(s):  
Andreea Cristina Nicolae

In certain languages, disjunctions exhibit positive polarity behavior, which Szabolcsi (2002) argues can be diagnosed via the following four properties: (i) anti-licensing: no narrow scope interpretation under a clausemate negation, (ii) rescuing: acceptable in the scope of an even number of negative operators, (iii) shielding: acceptable under a clausemate negation if a universal quantifier intervenes, and (iv) locality of anti-licensing: acceptable in the scope of an extra-clausal negation. In recent work, Nicolae (2016, 2017), building on Spector 2014, argues that what distinguishes PPI disjunctions from polarity insensitive disjunctions is the fact that PPI-disjunctions obligatorily trigger epistemic inferences. That analysis, however, only accounts for the first two PPI properties. This paper extends that analysis to account for the second two properties, concluding that they should be seen as instantiations of the same phenomena, namely shielding by a universal quantifier.


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