bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical investigation of flow boiling heat transfer in helically coiled tube under constant heat flux
Authors: Abdous 1 Mohammad Ali , Holagh Shahriyar Ghazanfari , Saffari Hamid 
Published: March 2019

Numerical study of subcooled and saturated flow boiling in the curved and helically coiled tubes in presence of phase change is one of the challenging area of CFD studies. In this paper, the CFD modeling of the nucleate and convective flow boiling in the small helically coiled tube at low vapor quality (up to the 18.93 percent) region is studied. A proper Eulerian-based mathematical model is used for interphase exchange forces and heat transfer between two phases in CFD modeling using Bulk boiling model. The results show that, the inner and the bottom wall of the helically coiled tube have the lowest and the highest heat transfer coefficient, respectively. The effect of change in coil diameter, helical pitch and tube diameter is investigated on the counters of vapor volume fraction. It is seen that at low vapor quality flows, the heat transfer coefficient is enhanced by decreasing in coil diameter, tube diameter and increasing in coil pitch of helically coiled tube.
Physical fitness of women over 50 years of age and self-esteem quality of life and health
Authors: Tomczak Mariusz , Ignasiak Zofia , Sławińska Teresa 
Published: March 2019

Summary

Study aim: The aim of this study was to examine whether in women over 50 years of age the rate of decline in physical fitness with age affects the self-assessment of health and quality of life.

Material and methods: The survey was conducted among 113 women, aged 50–70. The women were divided into two groups: of low and high assessment of their own health and quality of life (WHOQOL-bref). The strength of the dominant hand muscles was tested and the Senior Functional Fitness Test was performed [21]. Linear regression analysis was used in the studies.

Results: Women satisfied with their health and quality of life were characterized by alower rate of decline in physical fitness after the age of 50, in particular the strength of the dominant hand muscles, aerobic capacity, upper body flexibility, and speed and coordination, than the dissatisfied or undecided women.

Conclusions: Physical fitness of women is important in assessing one’s own health and quality of life.
Why the Microlevel Determines the Future of the Social Market Economy?
Authors: Nass Elmar 
Published: March 2019

Abstract
The main concern of this paper was to identify the homogeneity between the micro- and macro-level of social market economy. It shows the transfer of the normative main idea of the social market economy to concepts of leadership ethics with which it is compatible concerning the basic ideas. They will be identified as leadership models of the social market economy and therefore differentiated from those that contradict these ideas. To this end, an attempt will first be made to recall the normative foundations of the social market economy. Leadership will be henceforth identified as an application area of this value basis on the microlevel. Subsequently, the systematic approach will be traced for a transfer from the macro-level to the microlevel.
Consistent Multivariate Seasonal Adjustment for Gross Domestic Product and its Breakdown in Expenditures
Authors: Bikker Reinier , van den Brakel Jan , Krieg Sabine , Ouwehand Pim , van der Stegen Ronald 
Published: March 2019

Abstract
Seasonally adjusted series of Gross Domestic Product (GDP) and its breakdown in underlying categories or domains are generally not consistent with each other. Statistical differences between the total GDP and the sum of the underlying domains arise for two reasons. If series are expressed in constant prices, differences arise due to the process of chain linking. These differences increase if, in addition, a univariate seasonal adjustment, with for instance X-13ARIMA-SEATS, is applied to each series separately. In this article, we propose to model the series for total GDP and its breakdown in underlying domains in a multivariate structural time series model, with the restriction that the sum over the different time series components for the domains are equal to the corresponding values for the total GDP. In the proposed procedure, this approach is applied as a pretreatment to remove outliers, level shifts, seasonal breaks and calendar effects, while obeying the aforementioned consistency restrictions. Subsequently, X-13ARIMA-SEATS is used for seasonal adjustment. This reduces inconsistencies remarkably. Remaining inconsistencies due to seasonal adjustment are removed with a benchmarking procedure.
Is the Top Tail of the Wealth Distribution the Missing Link between the Household Finance and Consumption Survey and National Accounts?
Authors: Chakraborty Robin , Kavonius Ilja Kristian , Pérez-Duarte Sébastien , Vermeulen Philip 
Published: March 2019

AbstractThe financial accounts of the household sector within the system of national accounts report the aggregate asset holdings and liabilities of all households within a country. In principle, when household wealth surveys are explicitly designed to be representative of all households, aggregating these microdata should correspond to the macro-aggregates. In practice, however, differences are large. We first discuss conceptual and generic differences between those two sources of data. Thereafter, we investigate missing top tail observation from wealth surveys as a source of discrepancy. By fitting a Pareto distribution to the upper tail, we provide an estimate of how much of the gap between the micro- and macrodata is caused by the underestimation of the top tail of the wealth distribution. Conceptual and generic differences, as well as missing top tail observations, explain part of the gap between financial accounts and survey aggregates.
Using Administrative Data to Evaluate Sampling Bias in a Business Panel Survey
Authors: D’Aurizio Leandro , Papadia Giuseppina 
Published: March 2019

Abstract
We examine two sources of bias for the Bank of Italy’s panel business survey of Industrial and Services Firms:
1) the bias caused by panel attrition; and
2) the bias created by delays in the distributional data on the reference population, needed for computing the survey weights.
As for the first source of bias, the estimates strongly dependent on big firms’ values are less affected by panel attrition than those representing firms’ average behavior, independent of their sizes. Positive economic results make it easier to enroll new firms in the survey, in order to replace firms dropping out because of bad economic performances. However, the economic results of new entrances become more aligned to those of the population, once they enter the sample.
A very different result emerges for the second source of bias, since, when the population size is highly variable, the information delays produce a bias for the estimates influenced by the contribution of great firms, but the effect is negligible for the estimates not dependent on firm size.
Cross-National Comparison of Equivalence and Measurement Quality of Response Scales in Denmark and Taiwan
Authors: Liao Pei-shan , Saris Willem E. , Zavala-Rojas Diana 
Published: March 2019

AbstractThe split-ballot multitrait-multimethod (SB-MTMM) approach has been used to evaluate the measurement quality of questions in survey research. It aims to reduce the response burden of the classic MTMM design, which requires repeating alternative formulations of a survey measure to the same respondent at least three times, by using combinations of two methods in multiple groups. The SB-MTMM approach has been applied to the European Social Survey (ESS) to examine the quality of questions across countries, including the differences in response design and measurement errors. Despite wide application of the SB-MTMM design in Europe, it is yet unknown whether the same quality of survey instruments can be achieved in both a different cultural context and in a logographic writing system, like the one in Taiwan.This study tests for measurement invariance and compares measurement quality in Taiwan and Denmark, by estimating the reliability and validity of different response scales using the SB-MTMM approach. By using the same questions as in the ESS, a cross-cultural comparison is made, in order to understand whether the studied response scales perform equally well in Taiwan, compared to a European country. Results show that quality estimates are comparable across countries.
An Evolutionary Schema for Using “it-is-what-it-is” Data in Official Statistics
Authors: Lothian Jack , Holmberg Anders , Seyb Allyson 
Published: March 2019

AbstractThe linking of disparate data sets across time, space and sources is probably the foremost current issue facing Central Statistical Agencies (CSA). If one reviews the current literature looking for the prevalent challenges facing CSAs, three issues stand out: 1) using administrative data effectively; 2) big data and what it means for CSAs; and 3) integrating disparate data set (such as health, education and wealth) to provide measurable facts that can guide policy makers. CSAs are being challenged to explore the same kind of challenges faced by Google, Facebook, and Yahoo, which are using graphical/semantic web models for organizing, searching and analysing data. Additionally, time and space (geography) are becoming more important dimensions (domains) for CSAs as they start to explore new data sources and ways to integrate those to study relationships. Central agency methodologists are being pushed to include these new perspectives into their standard theories, practises and policies. Like most methodologists, the authors see surveys and the publications of their results as a process where estimation is the key tool to achieve the final goal of an accurate statistical output. Randomness and sampling exists to support this goal, and early on it was clear to us that the incoming “it-is-what-it-is” data sources were not randomly selected. These sources were obviously biased and thus would produce biased estimates. So, we set out to design a strategy to deal with this issue.This article presents a schema for integrating and linking traditional and non-traditional datasets. Like all survey methodologies, this schema addresses the fundamental issues of representativeness, estimation and total survey error measurement.
Evidence-Based Monitoring of International Migration Flows in Europe
Authors: Willekens Frans 
Published: March 2019

Abstract
In Europe, the monitoring and management of migration flows are high on the political agenda. Evidence-based monitoring calls for adequate data, which do not exist. The sources of data on international migration differ significantly between countries in Europe and the initiatives to improve data collection and produce comparable data, including new legislation, did not yield the expected outcome. Scientists have developed statistical models that combine quantitative and qualitative data from different sources to derive at estimates of migration flows that account for differences in definition, undercoverage, undercount and other measurement problems. Official statisticians are reluctant to substitute estimates for measurements. This article reviews the progress made over the last decades and the challenges that remain. It concludes with several recommendations for better international migration data/estimates. They range from improved cooperation between actors to innovation in data collection and modelling.
Crowning Moments: Transformative populist use of the media and the case of Carl I. Hagen
Authors: Mjelde Hilmar 
Published: March 2019

Abstract
This article presents the concept of a “crowning moment” and proposes an explanation for the media-savviness of many populist leaders – an under-theorised ability often referred to in existing research. A crowning moment is an instance in which populist leaders take advantage of opportunities that arise in their surroundings to achieve a or multiple major policy, political and/or personal goals through skilful use of the media that earns them recognition as savvy politicians. The concept is exemplified through an analysis of Norwegian Progress Party leader Carl I. Hagen’s role in the 1987 no-confidence motion against the Labour Party government. Stoking up and exploiting media interest in dramatic fashion, Hagen managed to redefine himself as a national political leader and made his party appear responsible.
Genetic Diversity and Structure of Northern Populations of the Declining Coastal Plant Eryngium maritimum
Authors: Ieviņa Baiba , Rostoks Nils , Syed Naeem H. , Flavell Andrew J. , Ievinsh Gederts 
Published: March 2019

Abstract
Genetic diversity among 13 northern populations of the declining coastal plant Eryngium maritimum L. at the northernmost extent of the species distribution range was studied using retro-transposon-based SSAP molecular markers. Diversity indices varied extensively among populations; some showing extremely low diversity whereas other populations exhibited moderate amounts of genetic variation. Differentiation among populations was highly variable as well. Interestingly, differentiation among northern populations was not influenced strongly by geographic distance. Closely situated populations were often more divergent than more distant populations suggesting other factors may be responsible for genetic structuring of E. maritimum populations. We propose that the following genetic and environmental factors combine together in a complex relationship to mould the present genetic structure of E. maritimum populations in this region: (1) historic biogeographical processes; (2) local environmental conditions at each site; (3) success of sexual reproduction and proportion of clonal propagation; (4) size of the population and influence of genetic drift; (5) level of fragmentation and isolation. Lastly, we suggest that the sustainable existence of Latvian populations is seriously threatened, unless recommended conservation measures are implemented.
Isolation and characterization of polymorphic microsatellite loci for Pistacia chinensis Bunge (Anacardiaceae)
Authors: Ding Zhaohong , Lu Jianbo 
Published: March 2019

Abstract

Pistacia chinensis Bunge (Anacardiaceae) is a native, dioecious, perennial arbor, and an important bioenergy plant. Twelve microsatellite markers were developed for P. chinensis to evaluate genetic diversity and population genetic structure when this species was subject to landscape fragmentation. Twelve polymorphic microsatellite loci were developed in P. chinensis using a microsatellite-enriched genomic library based on magnetic beads. These loci were characterized in 24 individuals from three populations located on Thousand Island Lake, Zhejiang Province, China. The number of alleles per locus varied from three to sixteen. The observed and expected heterozygosity ranged from 0.1250 to 0.8750 and 0.2333 to 0.8917, respectively. These microsatellite loci will be applied in further studies on the population genetic diversity and genetic structure of P. chinensis. This study will improve understanding of the effects of landscape fragmentation, and help conserve and manage the species.
Chemical composition of ‘Kiaat’ (Pteropcarpus angolensis) bark and the effect of herb pastes on the quality changes in marinated cat fish during chilled storage
Authors: B. O. T Ifesan B. A. Origbemisoye, 
Published: March 2019

Kiaat (Pterocarpus angolensis) bark, which is valued for its high medicinal effects, was subjected to proximate analysis, while the extract from its bark was examined for, phytochemicals and minerals compositions. Kiaat bark was mixed with garlic, to preserve minced fresh catfish and was stored at 4 oC for 9 days. Physical and chemical characteristics were analysed. The results of proximate composition revealed that kiaat bark contains high crude fibre (30.67%), protein (17.33%) and low contents of fat (2.98%). Phytochemical screening showed that the kiaat bark has flavonoid (1.90%), tannin (5.79%) alkaloid (2.96%) and phenol (5.90%) contents. The mineral determination revealed that kiaat bark contained high calcium (24.50 mg/100g), iron (17.20 mg/100g) content with very small amount of lead (0.01 mg/100g). The pH (6.30) of the minced cat fish marinated with kiaat bark+garlic at day 0 tends to be more acidic with increase in storage days and was 4.80 at day 9. The total volatile nitrogen values (TVB) (0.30 mg/100 g-5.46 mg/100 g) were lower than the standard limit (<35 mg/100 g sample). Trimethylamine in minced fish preserved with kiaat paste+garlic was 0.36 mgN/100g which later decreased to 0.16 mgN/100g at day 9, while values for samples with only kiaat bark and the control ranged from 0.64 mgN/100g -0.8 mgN/100g at day 9. Results further showed that thiobarbituric acid reactive substances (TBARs) values raised in all marinated samples during storage, especially in control sample (2.1-5.0 mgma\100g), sample with kiaat paste (0.2-4.2mgma\100g) and fish treated with kiaat paste+garlic (0.24-3.67mgma\100g). Addition of garlic to kiaat bark paste may be a preffered method to increase shelf-life of fresh catfish during chilled storage.
Cytotoxic Activity of Parmelia perlata Extracts against Artemia Salina
Authors: Mayilsamy M. , Geetharamanan K. 
Published: March 2019

The brine shrimp lethality bio assay represents a rapid, inexpensive and simple bioassay for testing plant extracts bioactivity which in most cases correlates reasonably well with cytotoxic and antitumor properties. The assay is considered to be a very useful tool for preliminary assessment of toxicity. In the present study the lichen Parmelia perlata was extracted with solvents of varying polarity such as hexane, ethyl acetate, acetone and methanol and tested for hatch inhibition of cysts of Artemia salina and cytotoxic activities against Artemia salina naupilii. The highest cytotoxic potential among all the plant extracts tested was explored from the hexane extract of P. perlata which showed 100% brine shrimp mortality at 100ppm. The least activity among all the plant extracts was found in the methanol extract ofÂ P. perlata.
Topographical Pressure Pain Sensitivity Maps of the Feet Reveal Bilateral Pain Sensitivity in Patients With Unilateral Plantar Heel Pain
Authors: Ríos-León Marta , Ortega-Santiago Ricardo , Madeleine Pascal , Fernández-de-las-Peñas César , Plaza-Manzano Gustavo 
Published: March 2019

Background Plantar heel pain is one of the most common foot pain conditions treated by health care providers. Objectives To investigate differences in topographical pressure pain sensitivity maps of the feet between patients with unilateral plantar heel pain and healthy individuals, and to determine the relationship between topographical pressure maps, pain intensity, disability, and fascia thickness. Methods Thirty-five patients with unilateral plantar heel pain and 35 matched healthy controls participated in this cross-sectional, case-control study. Pressure pain thresholds (PPTs) were assessed over 7 plantar locations on each foot. Topographical pressure pain sensitivity maps of the plantar region were generated using the averaged PPT of each assessed point. Pain and related disability were assessed with a numeric pain-rating scale (0–10) and the Foot and Ankle Ability Measure, respectively. Plantar fascia thickness was measured via ultrasound. All outcomes were obtained by an assessor blinded to the participants' condition. Results Topographical pressure sensitivity maps revealed lower bilateral PPTs in patients with plantar heel pain compared to healthy controls, and a higher PPT on the calcaneus bone (P<.01). Women had lower PPTs than men in all areas (P<.001). Individuals with plantar heel pain also had thicker fascia, but only on the affected side, compared to healthy controls. Higher pressure pain sensitivity in the foot was associated with higher pain intensity at first step in the morning and thicker fascia at the calcaneus bone. Conclusion People with unilateral plantar heel pain had generalized bilateral pressure pain sensitivity in the plantar region of the foot. Greater pain intensity and fascia thickness were associated with higher pressure pain sensitivity in people with plantar heel pain. Level of Evidence Case-control study, level 4. J Orthop Sports Phys Ther 2019;49(9):640–646. Epub 26 Mar 2019. doi:10.2519/jospt.2019.8813
O discurso político no feminino: identidade social (Rainha Mariana da Espanha e Governadora Roseana do Maranhão)
Authors: Ferreira Dina Maria M. 
Published: March 2019

The painting by Velásquez of Queen Marianna from Spain is tampered with by the media so as to picture the ‘royalty’ of Governor Roseana of Maranhão, one of the Brazilian states. Two contingent historical moments meet in the endurance of feminine power. Pragmatism and mythology crisscross in the universe which underlies and determines meaning.
Poder e negociação de identidades em reuniões acadêmicas
Authors: Brandão Cibele 
Published: March 2019

This paper is concerned about an analysis of power relations constituted by academic members in micro-interactions, as well as in the practice of identities negotiation that emerge from these interactions. The analysis shows how identities are constructed when academics establish power relations in the institutional setting of academic meetings. Power is observed in relation to asymmetric discourse, resistant discourse and in the struggle for the control of turns and agenda.
PENGAWASAN PEMERINTAH TERHADAP PELAKSANAAN PROGRAM PEMBAGIAAN ALAT TANGKAP DI KECAMATAN BISSAPPU KABUPATEN BANTAENG
Authors: Jufri Jufri , Said Alimuddin , Rahim Samsir 
Published: March 2019

The purpose of this was to find out how the geverment supervision on the implementation of fishing gear program in Bissappu district Bantaeng regency as well as to know the factors that influenced the supervision of the implementation in the district. Type of research was qualitative. This study used case study type. Date collection techiniques used in the form of questionnaires. Observation and documentation. The result of this study indicated that the supervision carried ouy by the geverment was monitoring and controlling and there was aa significant influence between the government supervision on the program of distribution of fishing gear in Bissappu District Bantaeng regency. Goverment supervion was strongly influenced by leadership, effectiveness and welfare. Keywords: Government Supervision, Community Empowerment, and Welfare