Search results for "parity"
showing 10 items of 513 documents
Predicting who fails to meet the physical activity guideline in pregnancy: a prospective study of objectively recorded physical activity in a populat…
2016
Background A low physical activity (PA) level in pregnancy is associated with several adverse health outcomes. Early identification of pregnant women at risk of physical inactivity could inform strategies to promote PA, but no studies so far have presented attempts to develop prognostic models for low PA in pregnancy. Based on moderate-to-vigorous intensity PA (MVPA) objectively recorded in mid/late pregnancy, our objectives were to describe MVPA levels and compliance with the PA guideline (≥150 MVPA minutes/week), and to develop a prognostic model for non-compliance with the PA guideline. Methods From a multi-ethnic population-based cohort, we analysed data from 555 women with MVPA recorde…
Leading the way toward fuel parity in photovoltaics: The utility-scale market in Sicily, Italy
2016
The global photovoltaic (PV) market has been growing exponentially since almost twenty years. This huge demand for photovoltaic systems has been mainly driven by public subsidies in the form of a variet y of national incentive schemes. However, in Countries where successful incentive schemes have been pioneered and are now – as planned - being brought to an end, the PV market is called to the challenge of surviving without any incentive to the end user. Grid and fuel-parity represent the keystone of this emerging new phase in the history of this renewable energy technology. In this paper we present a sensitivity analysis showing that in Sicily, Italy, the Levelized Cost of Energy from utili…
Reversal of Gender Disparity in Journalism Education- Study of Ghana Institute of Journalism
2017
Journalism has practically become a feminine profession across the world. To understand the root of the flow of women into the Journalism profession it is pertinent to begin at the university education level. Gallagher’s 1992 worldwide survey of female students in 83 journalism institutions reveals a significant increase in number of female students. Djerf-Pierre (2007) and others argue along Bourdieu’s conception of education as a form of social capital which empowers, enables and enhances women’s competitiveness in a pre-dominantly androgynous social arena. The study analyses 16 years of enrolment data of the Academic Affairs Unit of the Ghana Institute of Journalism (GIJ), a leading Jour…
Hacia una escuela multicultural: la presencia creciente de inmigrantes en el sistema educativo español
2002
El inusitado crecimiento de la inmigración en los últimos años ha transformado en buena medida la escuela española, incrementando su carácter multicultural, acentuando algunas diferencias entre la red pública y la privada o concertada, obligando a transformaciones notables para adaptar la escuela a la nueva realidad y sus necesidades. El artículo aborda los ritmos de llegada, la distribución territorial del nuevo alumnado y su tendencia a la concentración en la escuela pública, pero también analiza cuestiones de gran influencia en el ámbito educativo como el insuficiente conocimiento de nuestra(s) lengua(s), las diferencias religiosas, la concentración excesiva en algunos centros concretos …
Gray code for permutations with a fixed number of cycles
2007
AbstractWe give the first Gray code for the set of n-length permutations with a given number of cycles. In this code, each permutation is transformed into its successor by a product with a cycle of length three, which is optimal. If we represent each permutation by its transposition array then the obtained list still remains a Gray code and this allows us to construct a constant amortized time (CAT) algorithm for generating these codes. Also, Gray code and generating algorithm for n-length permutations with fixed number of left-to-right minima are discussed.
A trace partitioned Gray code forq-ary generalized Fibonacci strings
2015
AbstractWe provide a trace partitioned Gray code for the set of q-ary strings avoiding a pattern constituted by k consecutive equal symbols. The definition of this Gray code is based on two different constructions, according to the parity of q. This result generalizes, and is based on, a Gray code for binary strings avoiding k consecutive 0's.
Load mismatch of grid-connected photovoltaic systems: Review of the effects and analysis in an urban context
2013
Abstract The mismatch between generated and consumed electricity is a relevant topic of the energy and economic assessment of photovoltaic (PV) systems. Due to the load mismatch some amount of PV electricity may be exported to the grid because the electrical demand is temporarily lower than production, whereas a consumption, which is higher than production and/or that does not match the available PV generation, will require to be supplemented by the public grid electricity. The presence of the load mismatch can cause the effect of disadvantageously purchasing electricity from the grid and/or squandering the unexploited PV energy. If only a very small part of the PV generation is used to sup…
Electronic structure of the ytterbium monohydroxide molecule to search for axionlike particles
2021
Recently, the YbOH molecule has been suggested as a candidate to search for the electron electric dipole moment (eEDM), which violates spatial parity ($P$) and time-reversal ($T$) symmetries [I. Kozyryev and N. R. Hutzler, Phys. Rev. Lett. 119, 133002 (2017)]. In the present paper, we show that the same system can be used to measure coupling constants of the interaction of electrons and nucleus mediated by axionlike particles. The electron-nucleus interaction produced by the axion exchange can contribute to a $T,P$-violating EDM of the whole molecular system. We express the corresponding $T,P$-violating energy shift produced by this effect in terms of the axion mass and product of the axion…
Lines on the Dwork pencil of quintic threefolds
2012
We present an explicit parametrization of the families of lines of the Dwork pencil of quintic threefolds. This gives rise to isomorphic curves which parametrize the lines. These curves are 125:1 covers of certain genus six curves. These genus six curves are first presented as curves in P^1*P^1 that have three nodes. It is natural to blow up P^1*P^1 in the three points corresponding to the nodes in order to produce smooth curves. The result of blowing up P^1*P^1 in three points is the quintic del Pezzo surface dP_5, whose automorphism group is the permutation group S_5, which is also a symmetry of the pair of genus six curves. The subgroup A_5, of even permutations, is an automorphism of ea…
Gauge and Yukawa unification with broken R-parity
1998
We study gauge and Yukawa coupling unification in the simplest extension of the Minimal Supersymmetric Standard Model (MSSM) which incorporates R-Parity violation through a bilinear superpotential term. Contrary to what happens in the MSSM, we show that bottom-tau unification at the scale M_GUT where the gauge couplings unify can be achieved for any value of tan(beta) by choosing appropriately the sneutrino vacuum expectation value. In addition, we show that bottom-tau-top unification occurs in a slightly wider tan(beta) range than in the MSSM.