bluuebunny/crossref_metadata_2025 huggingface dataset:
BALANCING AN AIRCRAFT WITH SYMMETRICALLY DEFLECTED SPLIT ELEVATOR AND RUDDER DURING SHORT LANDING RUN
Authors: Ba Zuhair Mohammed
Published: May 2019

This article investigates methods for balancing aircraft during short straight-line landing run realized by employing split rudder and elevator as air-brakes after touchdown. For standard atmospheric and runway conditions, directional and longitudinal balance equations for aircraft of conventional configuration such as Il-86 are presented. Methods depend on operational and mechanical approaches, where the first requires manual or automatic trim of shortly peaking small pitching, yawing, and rolling moments using dynamic forces while the second suggest some re-design of elevator and rudder control channels to limit deflection angles. The paper describes in detail each method disadvantages and suggests the adoption of automatic operational approach due to less required system modifications and piloting skills.
Quiet-Sun Explosive Events Observed in He ii λ304 with MOSES-06
Authors: Rust Thomas , Kankelborg Charles C.
Published: May 2019

In this paper the unique data from the Multi-Order Solar Extreme-Ultraviolet Spectrograph (MOSES) are used to investigate transition region explosive events in the He ii
λ304 spectral line. Particular attention is paid to two example events: one blueshifted jet and one bidirectional jet. Observations suggest that these events consist exclusively of high-velocity (∼100 km s−1) plasma. These two and other examples presented here exhibit a striking lack of emission in the line core. No acceleration phase is observed at the onset of either event. In total, 41 examples of explosive events are identified, including 5 blueshifted jets, 2 redshifted jets, and 10 bidirectional jets. The remaining 24 events resist simple classification, but observations indicate compact, highly Doppler-shifted emission. Event spatial scales and lifetimes are consistent with published explosive event characteristics. Data from the Michelson Doppler Imager provide magnetic context to the MOSES observations. Bidirectional jets lacking line core emission are interesting because they are predicted in models of Petschek reconnection in the transition region.
PSR J1926-0652: A Pulsar with Interesting Emission Properties Discovered at FAST
Authors: Zhang Lei , Li Di , Hobbs George , Agar Crispin H. , Manchester Richard N. , Weltevrede Patrick , Coles William A. , Wang Pei , Zhu Weiwei , Wen Zhigang , Yuan Jianping , Cameron Andrew D. , Dai Shi , Liu Kuo , Zhi Qijun , Miao Chenchen , Yuan Mao , Cao Shuyun , Feng Li , Gan Hengqian , Gao Long , Gu Xuedong , Guo Minglei , Hao Qiaoli , Huang Lin , Jiang Peng , Jin Chengjin , Li Hui , Li Qi , Li Qisheng , Liu Hongfei , Pan Gaofeng , Pan Zhichen , Peng Bo , Qian Hui , Qian Lei , Shi Xiangwei , Song Jinyou , Song Liqiang , Sun Caihong , Sun Jinghai , Wang Hong , Wang Qiming , Wang Yi , Xie Xiaoyao , Yan Jun , Yang Li , Yang Shimo , Yao Rui , Yu Dongjun , Yu Jinglong , Yue Youling , Zhang Chengmin , Zhang Haiyan , Zhang Shuxin , Zheng Xiaonian , Zhou Aiying , Zhu Boqin , Zhu Lichun , Zhu Ming , Zhu Wenbai , Zhu Yan
Published: May 2019

We describe PSR J1926−0652, a pulsar recently discovered with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Using sensitive single-pulse detections from FAST and long-term timing observations from the Parkes 64 m radio telescope, we probed phenomena on both long and short timescales. The FAST observations covered a wide frequency range from 270 to 800 MHz, enabling individual pulses to be studied in detail. The pulsar exhibits at least four profile components, short-term nulling lasting from 4 to 450 pulses, complex subpulse drifting behaviors and intermittency on scales of tens of minutes. While the average band spacing P
3 is relatively constant across different bursts and components, significant variations in the separation of adjacent bands are seen, especially near the beginning and end of a burst. Band shapes and slopes are quite variable, especially for the trailing components and for the shorter bursts. We show that for each burst the last detectable pulse prior to emission ceasing has different properties compared to other pulses. These complexities pose challenges for the classic carousel-type models.
On the Gamma-Ray Nebula of Vela Pulsar. I. Very Slow Diffusion of Energetic Electrons within the TeV Nebula
Authors: Bao Yiwei , Liu Siming , Chen Yang
Published: May 2019

High-energy particle transport in pulsar wind nebulae (PWNe) plays an essential role in explaining the characteristics revealed in multiwavelength observations. In this paper, the TeV–gamma-ray-emitting electrons in the Vela X PWN are approximated to be injected impulsively when the cocoon is formed due to the interaction between the SNR reverse shock and the PWN. By solving the diffusion-loss equation analytically, we reproduce the broadband spectral energy distribution and surface brightness profile simultaneously. The diffusion coefficient of TeV electrons and positrons, which is well constrained by the spectral and spatial properties of the TeV nebula, is thus determined to be 1 × 1026 cm2 s−1 for 10 TeV electrons and positrons. This coefficient is more than three orders of magnitude lower than that in the interstellar medium, in agreement with a constraint recently obtained from HAWC observations of a TeV nebula associated with the Geminga pulsar. These results suggest that slow diffusion of high-energy particles might be common in PWNe.
A Consistent Set of Empirical Scaling Relations for Spiral Galaxies: The (vmax, MoM)–(σ0, MBH, ϕ) Relations
Authors: Davis Benjamin L. , Graham Alister W. , Combes Françoise
Published: May 2019

Using the latest sample of 48 spiral galaxies having a directly measured supermassive black hole mass, M
BH, we determine how the maximum disk rotational velocity, v
max (and the implied dark matter halo mass, M
DM), correlates with the (i) black hole mass, (ii) central velocity dispersion, σ
0, and (iii) spiral-arm pitch angle, ϕ. We find that

M

BH

∝

v

max

10.62
±
1.37

∝

M

DM

4.35
±
0.66

, significantly steeper than previously reported, and with a total root mean square scatter (0.58 dex) similar to that about the M
BH–σ
0 relation for spiral galaxies—in stark disagreement with claims that M
BH does not correlate with disks. Moreover, this M
BH–v
max relation is consistent with the unification of the Tully–Fisher relation (involving the total stellar mass, M
*,tot) and the steep

M

BH

∝

M

*
,
tot

3.05
±
0.53

relation observed in spiral galaxies. We also find that

σ

0

∝

v

max

1.55
±
0.25

∝

M

DM

0.63
±
0.11

, consistent with past studies connecting stellar bulges (with σ
0 ≳ 100 km s−1), dark matter halos, and a nonconstant v
max/σ
0 ratio. Finally, we report that

tan
∣
ϕ
∣
∝
(
−
1.18
±
0.19
)
log

v

max

∝
(
−
0.48
±
0.09
)
log

M

DM

, providing a novel formulation between the geometry (i.e., the logarithmic spiral-arm pitch angle) and kinematics of spiral galaxy disks. While the v
max–ϕ relation may facilitate distance estimations to face-on spiral galaxies through the Tully–Fisher relation and using ϕ as a proxy for v
max, the M
DM–ϕ relation provides a path for determining dark matter halo masses from imaging data alone. Furthermore, based on a spiral galaxy sample size that is double the size used previously, the self-consistent relations presented here provide dramatically revised constraints for theory and simulations.
Luminosity–Luminosity Correlations in Flux-limited Multiwavelength Data
Authors: Singal J. , Petrosian V. , Haider J. , Malik S.
Published: May 2019

We explore the general question of correlations among different waveband luminosities in a flux-limited multiband observational data set. Such correlations, often observed for astronomical sources, may be either intrinsic or induced by the redshift evolution of the luminosities and the data truncation due to the flux limits. We first address this question analytically. We then use simulated flux-limited data with three different known intrinsic luminosity correlations and prescribed luminosity functions and evolution similar to the ones expected for quasars. We explore how the intrinsic nature of luminosity correlations can be deduced, including exploring the efficacy of partial correlation analysis with redshift binning in determining whether luminosity correlations are intrinsic and finding the form of the intrinsic correlation. By applying methods that we have developed in recent works, we show that we can recover the true cosmological evolution of the luminosity functions and the intrinsic correlations between the luminosities. Finally, we demonstrate the methods for determining intrinsic luminosity correlations on actual observed samples of quasars with mid-infrared, radio, and optical fluxes and redshifts, finding that the luminosity–luminosity correlation is significantly stronger between mid-infrared and optical than that between radio and optical luminosities, supporting the canonical jet-launching and heating model of active galaxies.
Are the Double-mode Bulge RR Lyrae Stars with Identical Period Ratios the Relic of a Disrupted Stellar System?
Authors: Kunder Andrea , Tilton Alex , Maertens Dylon , Ogata Jonathan , Nataf David , Rich R. Michael , Johnson Christian I. , Gilligan Christina , Chaboyer Brian
Published: May 2019

Radial velocities of 15 double-mode bulge RR Lyrae (RR01) stars are presented, 6 of which belong to a compact group of RR01 stars in pulsation space, with the ratio of first-overtone period to fundamental mode period, P

fo
/P

f
 ∼ 0.74, and P

f
 ∼ 0.44. It has been suggested that these pulsationally clumped RR01 stars are a relic of a disrupted dwarf galaxy or stellar cluster, as they also appear to be spatially coherent in a vertical strip across the bulge. However, the radial velocities of the stars presented here, along with proper motions from Gaia DR2, show a large range of radial velocities, proper motions, and distances for the bulge RR01 stars in the pulsation clump, much larger than the RR01 stars in the Sagittarius dwarf galaxy (Sgr). Therefore, in contrast to the kinematics of the RRL stars belonging to Sgr, and those in and surrounding the bulge globular cluster NGC 6441, there is no obvious kinematic signature within the pulsationally clumped RR01 stars. If the pulsationally clumped RR01 stars belonged to the same system in the past and were accreted, their accretion in the inner Galaxy was not recent, as the kinematic signature of this group has been lost (i.e., these stars are now well-mixed within the inner Galaxy). We show that the apparent spatial coherence reported for these stars could have been caused by small number statistics. The orbits of the RR01 stars in the inner Galaxy suggest that they are confined to the innermost ∼4 kpc of the Milky Way.
No Evidence for Lunar Transit in New Analysis of Hubble Space Telescope Observations of the Kepler-1625 System
Authors: Kreidberg Laura , Luger Rodrigo , Bedell Megan
Published: May 2019

Observations of the Kepler-1625 system with Kepler and the Hubble Space Telescope have suggested the presence of a candidate exomoon, Kepler-1625b I, a Neptune-radius satellite orbiting a long-period Jovian planet. Here we present a new analysis of the Hubble observations, using an independent data reduction pipeline. We find that the transit light curve is well fit with a planet-only model, with a best-fit

equal to 1.01. The addition of a moon does not significantly improve the fit quality. We compare our results directly with the original light curve from Teachey & Kipping, and find that we obtain a better fit to the data using a model with fewer free parameters (no moon). We discuss possible sources for the discrepancy in our results, and conclude that the lunar transit signal found by Teachey & Kipping was likely an artifact of the data reduction. This finding highlights the need to develop independent pipelines to confirm results that push the limits of measurement precision.
Reading/writing as tangle: metafiction as motion
Authors: Olsen Lance
Published: May 2019

Serait-il fructueux de penser métafiction et réflexivité comme ayant moins à voir avec une certaine catégorie de textes qu’avec le type d’imagination du lecteur, qui vient travailler la textualité elle-même ? Cet article « critifictif » produit cette possibilité en explorant l’idée de l’irréductibilité – l’idée que lorsque se lançant dans la lecture d’un texte de métafiction, novateur, et par conséquent difficile, le lecteur n’atteindra jamais la première page ... et c’est en cela que se trouve précisément la joie de telles entreprises, au plan politique, ontologique et épistémologique.
Entre épiderme et psyché
Authors: Golse Bernard
Published: May 2019

Après avoir rappelé la place stratégique de la peau entre le dedans et le dehors, l’auteur envisage quelques problématiques particulières (l’audition cutanée, la bisexualité psychique et l’interdit du toucher) pour montrer que l’impact des relations cutanées précoces demeure gravé au plus profond du psychisme humain, avec des possibilités de réactivation tout au long de la vie.
Les sensations cutanées favorisent la réassurance affective du bébé comme de sa mère
Authors: Monzée Joël
Published: May 2019

À sa naissance, le bébé déposé sur le ventre de sa mère, peau à peau, va doucement remonter vers les seins. Il les palpera quelques instants de la main et prendra sa première tétée. Dans ces instants précieux, il apparaît que la maman va libérer massivement de l’ocytocine, une hormone aux propriétés essentielles pour asseoir le lien d’attachement mère-enfant. Cette hormone va, par la suite, jouer un rôle primordial dans la qualité des relations affectives ainsi que dans l’équilibrage de plusieurs systèmes de régulation, dont la boucle de stress et l’immunité. Par ailleurs, les neurosciences affectives montrent comment les amygdales vont déclencher la réponse au stress, mais également comment le processus de réassurance peut utiliser les sensations – notamment, celles de la peau – pour calmer leur activité et tempérer l’excès d’émotion à travers le système polyvagal qui, toute la vie, favorise la disponibilité à la relation affective sereine.
Une fleur sur la peau : l’enveloppement, une méthode écologique douce
Authors: Delion Pierre
Published: May 2019

Les enveloppements humides recèlent de belles potentialités thérapeutiques, dans la mesure où ils s’appuient sur les qualités physiologiques de la peau et sur les propriétés psychopathologiques de l’image du corps. Cet article fait le point sur les hypothèses de travail qui peuvent expliquer l’efficacité de ce traitement, et rappelle que l’environnement humain est incontournable pour délivrer des soins psychiques.
Assessment of high-intensity over-ground conditioning and simulated racing on aerobic and anaerobic capacities in racehorses
Authors: Bond S. , Greco-Otto P. , Sides R. , Léguillette R. , Bayly W.M.
Published: May 2019

A prospective, randomised study assessed the impact of high-intensity racetrack conditioning on aerobic and anaerobic capacities in seasoned Thoroughbred racehorses. The effect of 10 weeks race conditioning and two simulated races on V̇O2max and maximum accumulated oxygen deficit (MAOD) were evaluated. An incremental treadmill test to determine V̇O2max, followed by three supramaximal runs to fatigue (at speeds (V105%, V115%, V125%) corresponding to oxygen requirements 105%, 115% and 125% of V̇O2max, in randomised order) were performed at each timepoint (T1 [pre-conditioning] and T2 [post-conditioning]). Prior to T1, racehorses were briefly de-trained for four-six weeks and given low-level treadmill conditioning to prepare them for the more strenuous race conditioning after T1. Paired variables between T1 and T2 were analysed using a paired t-test. A 2-way RM ANOVA compared variables with >1 measurement. Speed at V̇O2max (P=0.04) and V̇O2max (P=0.01) increased with conditioning. Calculated speeds for the supramaximal runs increased for V105% (P=0.02) and V115% (P=0.03) but not for V125% (P=0.08). There was no conditioning effect on time to fatigue (P=0.34), although it was different between all intensities (2.8, 2.2 and 1.4 mins at V105%, V115% and V125% respectively at T2). O2 demand increased with conditioning (P=0.02) for each supramaximal intensity. On average, horses’ aerobic capacity improved 4.43% after conditioning. MAOD was unchanged with conditioning (P=0.25) and unaffected by exercise intensity. Fit racehorses that have undergone repeated intensive training programs, experience smaller, incremental improvement than completely unfit horses. The anaerobic capacity of previously trained racehorses is relatively stable, despite brief periods of de-training.
Felipe Bigarny a la luz de su testamento e inventarios de bienes
Authors: Vasallo Toranzo Luis
Published: May 2019

El hallazgo del testamento y de la totalidad de los inventarios, tasaciones —solo se conocía parcialmente la burgalesa—, almonedas y partija de los bienes de Felipe Bigarny permite desentrañar algunos de los interrogantes que rodeaban a su persona. En primer lugar se concreta parte de su periplo francés previo a su vecindad burgalesa, se prueba su relación con Gil de Siloe al llegar a Castilla, se aclaran algunas cuestiones familiares, se documentan ciertas obras inéditas y se repasan algunos de los artefactos de los que se rodeó y de los libros con los que se instruyó y sirvió para su práctica artística.
Educational level, marital status and sex as social gender discharge determinants in chronic obstructive pulmonary disease exacerbations: a time-to-event analysis
Authors: Giannico Orazio Valerio , Ambrosino Immacolata , Patano Francesco , Germinario Cinzia , Quarto Michele , Moretti Anna Maria
Published: May 2019

The aim of this study is to evaluate, in patients hospitalized for COPD exacerbation, how educational level, marital status and sex (social gender indicators) affect the home discharge probability (main effects) and how interact with each other in affecting this probability (effect modification). Data for all patients discharged with a principal diagnosis of COPD with exacerbation (ICD-9 491.21) by Apulian hospitals between 2013 and 2017 were retrieved from the National Hospital Discharge Register Database. A multivariable multi-stratified frailty cox proportional-hazard regression with interaction terms was fitted in order to assess the effect of sex, educational level and marital status on the time-to-event for home discharge through the estimation of hazard ratios. Adjusting for several patient and hospitalization characteristics and for healthcare facilities, low educational level (<8 years of schooling) is associated with a lower probability of being discharged to home in both sexes and in all marital status categories (HR 0.92, 95%CI 0.87-0.97, p=0.0020). Female sex is associated with a lower probability of being discharged to home only in married patients (HR 0.83, 95%CI 0.78-0.88, p<0.0001). Marital status different from married is associated with a lower probability of being discharged to home only in male patients, in particular single patients (HR 0.82, 95%CI 0.74-0.92, p=0.0009), separated or divorced patients (HR 0.71, 95%CI 0.58-0.86, p=0.0005) and widowed patients (HR 0.87, 95%CI 0.80-0.95, p=0.0018). Differently from findings about protective effect of education, the evidence of different effects of sex on home discharge probability among civil statuses and of different effect of civil status among sexes is supposed to be a proxy for social gender health and healthcare inequalities.
Addressing the problem of mass poverty in the Sub-Saharan Africa: Conversational thinking as a tool for inclusive development
Authors: Chimakonam Jonathan O.
Published: May 2019

I argue that one way in which a problem such as mass poverty in the sub-Saharan Africa can be addressed is through inclusive development, which is a pro poor, pro all, programme. However, it appears that the theoretical framework that can deliver the values of inclusive development has yet to be clearly sorted out. This is because, while bringing together all actors and factors, inclusive development should not subsume individual endowments to collective values. I fault Amartya Sen’s Capabilities approach which mounts a defence of development through democratic deliberation as treating the individual in a way that seemingly trivialises the sort of relationship—a complementary one— required for inclusive development to happen, and Thaddeus Metz’s ubuntu approach which though upholds individual endowments, tends to also appeal to the collective in a way that appears to place premium on some collective values like solidarity which, I think, can blur the line between individual endowments and collective values. So, I claim that inclusive development can better be delivered using the approach of conversational thinking which has the capacity to drive the values of inclusive development such as complementarity and comprehensiveness while at the same time sufficiently isolating the endowments of the individuals from the trappings of the collective. Conversational thinking achieves this by taking the nature of the relationships of the relevant variables to factor into the effort aimed at combating social protection problems such as poverty.Keywords: Sub-Saharan Africa, Inclusive development, Conversational thinking, Mass poverty, African philosophy.
Sustainable-inclusive development through conversational thinking: The case for Africa – China relations
Authors: Enyimba Maduka
Published: May 2019

My aim in this paper is to show the necessity and possibility of  implementing inclusive development that is sustainable in Africa-China relations using the Conversational technique. I contend that the foremost challenges facing inclusive and sustainable developments are the dearth of constructive and balanced relationships. If a programme of development is constructive, that is, takes into consideration every relevant variable and practicable measure, it would be sustainable; and if it is balanced, that is, being fair to all groups, it would be inclusive. Michelle and Paula (2012) have proposed that inclusive development is possible through a community-based strategy. This approach is bedeviled with difficulties which conversational thinking overcomes. Conversational thinking is a new approach in philosophical cogitation developed from the African place, but universally relevant. Its significance lies in the fact that it recognises the relevance of contending variables in a given project, and creates room for their creative engagement that opens new vistas for thought, concepts and interactions. Conversational thinking prioritises relationships that exist among development variables or groups designated as either nwansa (out-group) or nwanju (in-group) and purveys strategies for making such relationships constructive and balanced. In highlighting the importance of cultivating constructive and balanced relationships and sustaining the same, I appeal to conversational philosophy as the needed pathway for the implementation of the ideals of sustainable-inclusive development in Africa-China relations. My methods will be expository, prescriptive and analytic. Keywords: Sustainability, Inclusive Development, Conversational Thinking, Chimakonam, Africa-China Relations.
Inclusive development: some perspectives from African communitarian philosophy
Authors: Mosima Pius M.
Published: May 2019

In this paper, I argue that traditional African communitarian values such as togetherness, mutual cooperation and solidarity are more consistent with the social structure and the political organization of many traditional  societies in Africa and could be a veritable framework for implementing a program of inclusive development. I establish that African communitarian values take into consideration the contributions of all stakeholders,  including the poor, vulnerable, and the marginalized in a bid to address development issues. I also provide strong reasons for implementing communitarian strategies of togetherness, solidarity and mutual  cooperation which support mutual interdependence and could promote inclusive development in Africa. I draw examples from traditional African ethic with communitarian values salient among small self-governing communities, and reflect on the ethic / politics of consensus in light of important developmental challenges facing the world today. I draw the conclusion that a critical and creative reevaluation of the communitarian values may help Africans and the rest of humanity in meeting the challenges of inclusive development. Keywords: Inequality, Inclusive Development, Liberalism, African  Communitarianism, Ontology, Wellbeing, African Socialism
Inclusive development of Naga Tribes in Nagaland: Strategy for sustainability
Authors: Humtsoe Mhadeno Y. , Soundari M. Hilaria
Published: May 2019

Naga Tribal communities residing in rural Nagaland are deprived of access to adequate health care services, livelihood opportunities, road connectivity, sanitation and education. About 71.14 percent (Census, 2011) of Naga Tribes inhabit rural areas; most of these tribal communities are engaged in agriculture and allied activities for livelihood. The absence of adequate road network suitable for all weather, public transportation system, and high cost of transportation fares hinder the mobility of the tribal communities in the rural areas. The confinement of development to the urban areas has led to interdistrict disparities and dearth of basic facilities in the rural communities. This study intends to portray the socio-economic status of the Naga Tribal communities in rural areas. The study will identify infrastructural challenges of the Naga tribal communities. Descriptive Research Design have been adopted and the study includes only secondary data. The Survey method was used in the analysis of the collected secondary data. The implementation of inclusive development has become an urgent need, in order to provide basic infrastructures with equity to the Naga tribal community in rural Nagaland. The study will show how achieving inclusive development can contribute to the realization of Sustainable Development Goals (SDGs) at the national and global level.Key words: Inclusive Development, Naga Tribes
Influence of ENSO and MJO on the zonal structure of tropical tropopause inversion layer using high-resolution temperature profiles retrieved from COSMIC GPS Radio Occultation
Authors:   Noersomadi, Tsuda Toshitaka , Fujiwara Masatomo
Published: May 2019

Abstract. Using COSMIC GPS Radio Occultation (RO) observations from
January 2007 to December 2016, we retrieved temperature profiles with the
height resolution of about 0.1 km in the upper troposphere and lower
stratosphere (UTLS). We investigated the distribution of static stability
(N2) and the zonal structure of the tropopause inversion layer (TIL) in
the tropics, where a large change in the temperature gradient occurs associated
with sharp variations in N2. We show the variations in the mean N2
profiles in coordinates relative to the cold-point tropopause (CPT). A very
thin (<1 km) layer is found with average maximum N2 in the
range of 11.0–12.0×10-4 s−2. The mean and standard
deviation of TIL sharpness, defined as the difference between the maximum
N2 (max⁡N2) and minimum N2 (min⁡N2)
within ±1 km of the CPT, is (10.5±3.7)×10-4 s−2. The max⁡N2 is typically located within 0.5 km above CPT. We focused on the variation in TIL sharpness in two longitude regions,
90–150∘ E (Maritime Continent; MC) and 170–230∘ E
(Pacific Ocean; PO), with different land–sea distribution. Seasonal
variations in TIL sharpness and thickness were related to the deep convective
activity represented by low outgoing longwave radiation (OLR) during the
Australian and Asian monsoons. The deviation from the mean sharpness
(sharpness anomaly) was out of phase with the OLR anomaly in both the MC and
PO. The correlation between the sharpness anomaly over the MC and PO and the sea
surface temperature (SST) Niño 3.4 index was −0.66 and +0.88,
respectively. During La Niña (SST Niño 3.4 <-0.5 K) in the MC and
El Niño (SST Niño 3.4 >+0.5 K) in the PO, warmer SSTs in the MC
and PO produce more active deep convection that tends to force the air upward
to the tropopause layer and increase the temperature gradient there. The
intraseasonal variation in sharpness anomaly during slow and fast episodes
of the Madden–Julian Oscillation (MJO) demonstrates that eastward
propagation of the positive sharpness anomaly is associated with organized deep
convection. Deep convection during MJO will tend to decrease N2 below
CPT and increase N2 above CPT, thus enlarging the TIL sharpness. Convective
activity in the tropics is a major control on variations in tropopause
sharpness at intraseasonal to interannual timescales.
Sensitivity of CHIMERE to changes in model resolution and chemistry over the northwestern Iberian Peninsula
Authors: Brands Swen , Fernández-García Guillermo , Tesouro Montecelo Marcos , Gallego Fernández Nuria , Saunders Estévez Anthony David , Carracedo García Pablo Enrique , Neto Venancio Anabela , Melo da Costa Pedro , Costa Tomé Paula , Otero Christina , Macho María Luz , Taboada Juan
Published: May 2019

Abstract. Here, the capability of the chemical weather forecasting model CHIMERE (version 2017r4) to reproduce summertime surface ozone, particulate matter and nitrogen dioxide concentrations in complex terrain is investigated. The study area is the northwestern Iberian Peninsula, where both coastal and mountain climates can be found in direct vicinity and a large fraction of the land area is covered by forests. Fed by lateral boundary conditions from the ECMWF Composition Integrated Forecast System, meteorological data from the Weather Research and Forecasting Model (WRF) and the HTAP v2.2 emission inventory, CHIMERE's performance compared to observations is tested with a range of sensitivity experiments, exploring the role of horizontal and vertical resolution and the effects of applying distinct chemistry mechanisms. Using a high horizontal and vertical resolution yields the most balanced verification results. If both the daily maximum and minimum values are important for the given application, then the full Melchior mechanism should be used. If, however, the daily maxima are considered more important than the minima, SAPRC should be used instead. In any case, model performance for nitrogen dioxide is clearly not satisfactory for our study region, probably indicating deficiencies in the emission inventory.
Upgraded global mapping information for earth system modelling: an
application to surface water depth at ECMWF
Authors: Choulga Margarita , Kourzeneva Ekaterina , Balsamo Gianpaolo , Boussetta Souhail , Wedi Nils
Published: May 2019

Abstract. Water bodies influence local weather and climate, especially in lake-rich areas (e.g. lake regions in Canada and northern Russia). In 2015 a parametrization to represent inland water bodies was included in the Integrated Forecasting System (IFS) used operationally at the European Centre for Medium-Range Weather Forecasts (ECMWF) to produce global weather predictions. The parameterization is based on the Fresh-water Lake model (FLake). In the IFS, FLake runs on any inland surface grid-point. It thus depends on global, realistic and complete lake depth and lake cover data as input. Operationally used lake depths make use of the Global Lake Data Base (GLDBv1) over lakes, a default value of 25 m where lake depth information is missing, and over the ocean bathymetry from ETOPO1. In this study we present the upgraded GLDBv3 dataset, which makes use of mean depth estimates based on geological origin over land, and the GEBCO ocean bathymetry. To assess the impact of using GLDBv3 instead of GLDBv1 in-situ measurements of lake water surface temperatures and information on ice formation/disappearance dates for 27 lakes collected by the Finnish Environment Institute were used for verification. The dataset includes daily temperature measurements and ice formation/disappearance dates recorded by observers. A set of surface experiments were carried out using the IFS and atmospheric forcing from the ERA5 reanalysis to test the operational and new lake depths. These simulations were done at a grid spacing of about 9 km and covered the 5-year period 2010–2014. When verified against in-situ lake depth measurements, the new lake depths in GLDBv3 have a much lower mean absolute error, bias and standard deviation error compared to the current operationally used GLDBv1 depths. Indirect verification was used to compare measured and modelled lake water surface temperatures and ice formation/disappearance dates. On average the mean absolute error of lake surface temperatures is reduced by 13.4 %, biases are reduced by 12.5 % and the standard deviation error by 20.3 % when GLDBv3 is used instead of GLDBv1. Seasonal verification of mixed layer depth temperature and ice formation/disappearance dates (using lake mixing seasons) revealed a cold bias in meteorological forcing from ERA5. However, for spring, summer and autumn verification confirms an overall reduction in the errors in surface water temperatures. For winter verification based on ice formation/disappearance dates shows no statistically significant change in ice disappearance date errors.
Expansión de Lemna valdiviana Phil. (Araceae) en la Península Ibérica: Una nueva cita en Galicia
Authors: Medina Domingo Leopoldo , Galán de Mera Antonio
Published: May 2019

Se cita por primera vez Lemna valdiviana Phil. en Galicia. Se comenta su ecología y expansión en la Península Ibérica como planta invasora.
Determinants of Capital Adequacy Ratio (CAR) in MENA Region: Islamic vs. Conventional Banks
Authors: El-Ansary Osama , El-Masry Ahmed A. , Yousry Zainab
Published: May 2019

Purpose: The purpose of this research is to conduct a comparative analysis of CAR determinants between Islamic and conventional banks.Design/methodology/approach: The analysis is conducted using GMM on annual data for 38 Islamic banks (IBs) and 75 conventional banks (CBs) in 10 MENA countries during 2009-2013. CAR is used as a dependent variable and is measured by the Basel framework. The independent variables are: profitability; liquidity risk; credit risk; bank size; deposits to assets; operational efficiency; portfolio risk; and two macro-economic variables (GDP growth rate and average world governance indicators for each country).Findings: The results show that both IBs and CBs have a significant association between CAR and (bank size, operational efficiency, and GDP growth rate) and CAR is affected retroactively on the long-run. In IBs the results show a significant association between CAR and deposits to assets ratio. However, CBs results show an association between CAR and (profitability, credit risk, and portfolio risk). Practical implications: The empirical evidence accentuates the difference between both banking systems and the importance to enforce the application of the Islamic Financial Services Board (IFSB) proposal on IBs based in different jurisdictions. This will enhance the IBs stability and efficiency; and achieve standardization of CAR calculation between IBs. Originality/value: Filling the gap in the Islamic finance literature by trying to examine whether factors influencing CAR are similar between both banking systems or to confirm on the view that they are completely different and should not adhere to the same regulatory bodies.
ANAIS DO 1º ENCONTRO DE SAÚDE COLETIVA
Authors: Universidade Federal do Paraná UFPR
Published: May 2019

As propostas de ensino-aprendizagem centradas na pesquisa dos fatores determinantes e condicionantes da saúde/doença são capazes de impulsionar relevantes mudanças nos direcionamentos da assistência individual e coletiva. Visando potencializar este movimento de transformação, o Programa de Pós-Graduação em Saúde Coletiva realizou  o Encontro de Saúde Coletiva, em Curitiba, na Universidade Federal do Paraná, no período de 09  a  10 de dezembro  de 2016 e teve  como tema “A Pesquisa na Saúde Coletiva”. Este evento constituiu um espaço privilegiado de incentivo à produção científica na área e divulgação dos conhecimentos produzidos no Paraná, contribuindo para a formação de recursos humanos e o aprimoramento dos cuidados em saúde, por meio de trocas de experiências e possibilidades de parcerias com pesquisadores regionais e nacionais.  Comissão Organizadora1º Encontro de Saúde Coletiva: A Pesquisa na Saúde ColetivaCuritiba, dezembro de 2016.
OCORRÊNCIA DO DIABETE MELLITUS GESTACIONAL EM USUÁRIAS DO SISTEMA ÚNICO DE SAÚDE DO MUNICÍPIO DE PONTA GROSSA/PR.
Authors: POSSA Gisele De Oliveira Krubniki , OLIVEIRA Thais Latansio de
Published: May 2019

O termo Diabetes Mellitus Gestacional (DMG) é utilizado para designar a hiperglicemia diagnosticada pela primeira vez durante a gestação. Trata-se de um distúrbio metabólico semelhante ao Diabetes Mellitus do tipo 2, que não tem sua fisiopatologia completamente elucidada. O DMG é um potente causador de problemas materno-fetais. Devido aos casos de diabetes serem cada vez mais comuns este trabalho tem por objetivo verificar o percentual de DMG em gestantes usuárias do Sistema Único de Saúde do município de Ponta Grossa-PR no ano de 2016. Foram analisados os resultados de glicemia de jejum e Teste Oral de Tolerância à Glicose anterior e durante o período gestacional de 700 pacientes. Verificou-se que 6,2% das gestantes apresentaram critérios laboratoriais para o DMG, sendo que 53% das pacientes tinham idade ≥ 30 anos, eram secundigestas em sua maioria e possuíam ainda outros fatores de risco, dentre eles o de maior predominância, com 52% foi o Índice de Massa Corporal ≥ 30, indicando obesidade, fator diretamente relacionado com o desenvolvimento do DMG. Mediante o estudo, conclui-se que o percentual de gestantes com DMG está em conformidade com os resultados obtidos na literatura, sendo que a maioria das gestantes eram de idade materna avançada e possuíam outros fatores de risco associados ou não ao DMG.
Introducing the physician associate role in Ireland: Evaluation of a hospital based pilot project
Authors: Joyce Pauline , Hooker Roderick S. , Woodmansee Denni , DK Hill Arnold
Published: May 2019

Objective: Ireland has medical workforce challenges and a growing demand for services.  One strategy is to include Physician Associates (PAs) in healthcare settings.  A pilot study was undertaken with PAs recruited from North America and the United Kingdom to work in a large Dublin teaching hospital.Methods: Four PAs were deployed on surgical services.  Communication with the hospital staff preceded their employment.  A series of interviews were undertaken at the beginning [2015] and end [2017] of the project.  Data collection included surveys and interviews with staff and PAs.Results: Despite a series of communications about the employment of PAs a lack of awareness among hospital staff prevailed.  This presented a challenge for the PAs to assume their role and for staff to bring them on board.  Once on board those staff who worked with the PAs found their role beneficial in terms of continuity of care and skillset.  Recommendations for inclusion of PAs in any new employment should include a more robust stakeholder engagement and promulgation throughout the wider healthcare system.Conclusion: Attitudes about the adoption of the PA have come slowly when first introduced in a country and Ireland seems no exception.  At the same time communication lessons were learned about introducing a new health provider role in Irish society.
On weakly periodic-like rings and commutativity theorems
Authors: Hazar Abu-Khuzam , Bell Howard E. , Yaqub Adil
Published: May 2019

A ring $R$ is called periodic if, for every $x$ in $R$, there exist distinct positive integers $m$ and $n$ such that $x^m=x^n$. An element $x$ of $R$ is called potent if $x^k=x$ for some integer $k>1$. A ring $R$ is called weakly periodic if every $x$ in $R$ can be written in the form $x=a+b$ for some nilpotent element $a$ and some potent element $b$ in $R$. A ring $R$ is called weakly periodic-like if every element $x$ in $R$ which is not in the center $C$ of $R$ can be written in the form $x=a+b$, with $a$ nilpotent and $b$ potent. Some structure and commutativity theorems are established for weakly periodic-like rings $R$ satisfying certain torsion-freeness hypotheses along with conditions involving some elements being central.
Classes with negative coefficients and starlike with respect to other points II
Authors: Halim Suzeini Abdul , Janteng Aini , Darus Maslina
Published: May 2019

A class $ S_{s}^{\star}T(\alpha,\beta,\sigma,k) $ of functions $ f $ which are analytic and univalent in the open unit disk $ {D=\{z:|z|
Generalized $ f $-nonexpansive R-subweakly commuting multivalued maps
Authors: Vijayaraju P. , Hemavathy R.
Published: May 2019

WWe prove coincidence point theorems for the generalized $ f $-nonexpansive R-subweakly commuting multivalued maps. Our results generalize and extend well known results for noncommuting maps.
Oscillation and nonoscillation of nonlinear neutral delay difference equations
Authors: Thandapani E. , Kumar P. Mohan
Published: May 2019

In this paper, the authors establish some sufficient conditions for oscillation and nonoscillation of the second order nonlinear neutral delay difference equation$$ \Delta^2 (x_n-p_nx_{n-k}) + q_nf(x_{n-\ell}) = 0, ~~n \ge n_0 $$where $ \{p_n\} $ and $ \{q_n\} $ are non-negative sequences with $ 0$
Robust stability of discrete-time systems of difference equations (Removed from Archives)
Authors: Zahreddine Ziad
Published: May 2019

This paper deals with the robust stability of discrete-time systems of difference equations. Given the nominal characteristic polynomial of a certain discrete-time system, we determine the maximum allowable perturbation that such a polynomial can undergo while preserving the Schur stability of the corresponding system.
On weakly prime submodules
Authors: Atani S. Ebrahimi , Farzalipour F.
Published: May 2019

Let $ R $ be a commutative ring with non-zero identity. We define a proper submodule $ N $ of an $ R $-module $ M $ to be weakly prime if $ 0\not = rm\in N $( $ r\in R, m\in M $) implies $ m\in N $ or $ rM\subseteq N $. A number of results concerning weakly prime submodules are given. For example, we give three other characterizations of weakly prime submodules.
Some results concerning frames in Banach spaces
Authors: Kaushik S. K.
Published: May 2019

A necessary and sufficient condition for the associated sequence of functionals to a complete minimal sequence to be a Banach frame has been given. We give the definition of a weak-exact Banach frame, and observe that an exact Banach frame is weak-exact. An example of a weak-exact Banach frame which is not exact has been given. A necessary and sufficient condition for a Banach frame to be a weak-exact Banach frame has been obtained. Finally, a necessary condition for the perturbation of a retro Banach frame by a finite number of linearly independent vectors to be a retro Banach frame has been given.
Generalized Vandermonde determinants for reversing Taylor's formula and application to hypoellipticity
Authors: Donno Giuseppe De
Published: May 2019

The problem of the hypoellipticity of the linear partial differential operators with constant coefficients was completely solved by H"{o}r-man-der in [5]. He listed many equivalent algebraic conditions on the polynomial symbol of the operator, each necessary and sufficient for hypoellipticity. In this paper we employ two Mitchell's Theorems (1881) regarding a type of Generalized Vandermonde Determinants, for inverting Taylor's formula of polynomials in several variables with complex coefficients. We obtain then a more direct and easy proof of an

equivalence for the mentioned H"{o}r-man-der's hypoellipticity conditions.
A refinement of the Gr"{u}ss inequality and applications
Authors: Cerone P. , Dragomir S. S.
Published: May 2019

A sharp refinement of the Gr"{u}ss inequality in the general setting of measurable spaces and abstract Lebesgue integrals is proven. Some

consequential particular inequalities are mentioned.
Strong convergence theorem for two asymptotically quasi-nonexpansive mappings with errors in Banach space
Authors: Saluja G. S.
Published: May 2019

In this paper, we study strong convergence of common fixed points of two asymptotically quasi-nonexpansive mappings and prove that if $K$ is a nonempty closed convex subset of a real Banach space $E$ and let $ S, T\colon K\to K $ be two asymptotically quasi-nonexpansive mappings with sequences $ \{u_n\}$, $\{v_n\}\subset [0,\infty) $ such that $ \sum_{n=1}^{\infty}u_n
On applications of differential subordination and superordination
Authors: Marikkannan N. , Ganesamoorthy C.
Published: May 2019

In the present investigation we obtain the sufficient conditions for normalized analytic functions $f$ to satisfy$$ q_1 \prec \frac{f^2}{z^2f'} \prec q_2, $$where $ q_1 $ and $ q_2 $ are univalent functions with $ q_1(0)= q_2(0)=1 $. Also we obtain the sandwich results involving Carlson-Shaffer linear operator, $ S\u{a}l\u{a} $gean derivative and Ruscheweyh derivative.
On pseudo generalized quasi-Einstein manifolds
Authors: Shaikh A. A. , Jana Sanjib Kumar
Published: May 2019

The object of the present paper is to introduce a type of non-flat Riemannian man- ifold called pseudo generalized quasi-Einstein manifold and studied some properties of such a manifold with several non-trivial examples.
Protective behavior against personalized ads: Motivation to turn personalization off
Authors: Strycharz Joanna , Van Noort Guda , Smit Edith , Helberger Natali
Published: May 2019

Data collection and processing for personalized advertising has become a common practice in the industry. For this reason, regulators have been aiming to empower consumers to exercise more control over their data. Companies that collect and process data for personalized advertising are required to be transparent and among others, provide consumers with technical knowledge about the personalization process. At the same time, they have started offering settings to withdraw consent for processing data for personalization purposes by opting out from personalized advertising. However, such opt-out functions remain mostly unused. Thus, this study investigates first, if technical knowledge about personalization empowers consumers to use such opt-out functions and second, what mechanisms can explain the empowering impact of knowledge. Drawing on Rogers’ (1975) protection motivation theory (PMT) and applying an innovative combination of traditional (online experiment, N = 425, Mage = 48) and computational (online behavior tracking, N = 80, Mage = 48) research methods, the study shows that technical knowledge has no empowering effect on consumers by indirectly lowering opt-out motivation and behavior. The results also demonstrate that perceived severity and response efficacy increase motivation to opt-out, while positive attitude towards personalization and perceived self-efficacy lower it. Being one of the first studies to apply PMT to personalization context and computational methods to measure opt-out, it offers several important societal and theoretical implications regarding consumer empowerment and personalized advertising online.