bluuebunny/crossref_metadata_2025_split huggingface dataset:
Approximation properties of Kantorovich type q-Balázs-Szabados operators
Authors: Özkan Esma Yıldız 
Published: January 2019

Abstract
In this paper, we introduce a new kind of q-Balázs-Szabados-Kantorovich operators called q-BSK operators. We give a weighted statistical approximation theorem and the rate of convergence of the q-BSK operators. Also, we investigate the local approximation results. Further, we give some comparisons associated with the convergence of q-BSK operators.
Kinetic Analysis for Biodesulfurization of Dibenzothiophene using R. rhodochrous Adsorbed on Silica
Authors: Canales Christian , Eyzaguirre Johanna , Baeza Patricio , Aballay Paulina , Ojeda Juan 
Published: January 2019

Abstract
Experimental biodesulfurization (BDS) data for dibenzothiophene (DBT) (1.0-7.0 mM) with Rhodococcus rhodochorus immobilized by adsorption on silica, were adjusted with liquid-film kinetic model (Fisher coefficient, F = 592.74 and probability value p << 0.05 and r
2 = 0.97). Simulations predict the presence of considerable amounts of DBT surrounding the particles, which would be available for the cells adsorbed on the surface of silica. The greatest percentage removal (50 %) was obtained for adsorbed cell system over the suspended bacterial cells (30 %), showing that sulfur substrates are more bioavailable when the bacterial cells are adsorbed on silica. The liquid-film modelling with diffusional effects provides proper theoretical basis to explain the BDS performance obtained using adsorbed cells.
Mushrooms as Biomonitors of Heavy Metals Contamination in Forest Areas
Authors: Świsłowski Paweł , Rajfur Małgorzata 
Published: January 2019

Abstract
The aim of the research was to assess the level of contamination with heavy metals (manganese, iron, nickel, copper, zinc, cadmium and lead) in two forest areas selected in different places in Poland: the first one in the Swietokrzyskie Province (forests of the Staporkow Forest Division) and the second one in the Opolskie Province (forests of the Kup Forest Division). The degree of contamination of these forest areas with analytes was found using edible large-fruited mushrooms naturally occurring there - the research was carried out using passive biomonitoring method. Heavy metals in mushrooms (separately in stems and hats) as well as in soil samples were determined by atomic absorption spectrometry with excitation in flame (F-AAS). The obtained results were interpreted by assessing the degree of contamination of forest areas on the basis of concentrations of heavy metals in mushrooms. The obtained results indicate an increased accumulation of heavy metals in hats than in mushrooms stems. On the basis of the obtained data, significant contamination of forest areas with selected heavy metals was also found. This is confirmed by the possibility of using mushrooms as biomonitors in passive biomonitoring of forest areas, which are heavy metal accumulators. In the interpretation of the test results, the phytocumuling factor (PF) was also used. The degree of accumulation of heavy metals, from given forest areas - from soil to mushrooms - was assessed on the basis of determined PF coefficients. In addition, good bioavailability of the analysed analytes by mushrooms was found. Additionally, on the basis of the conducted studies, the possibility of mushroom consumption was assessed - they are not suitable for consumption due to the fact that the permissible concentration standards of heavy metals contained in mushrooms were exceeded.
Thermal Analysis of Longitudinal Fin with Temperature-Dependent Properties and Internal heat Generation by a Novel Intelligent Computational Approach Using Optimized Chebyshev Polynomials
Authors: Shivanian Elyas , Kazemi Ramin , Keshtkar Mahdi 
Published: January 2019

Abstract
In this work, heat transfer in a longitudinal rectangular fin with temperature-dependent thermal properties and internal heat generation is studied and more accurate results obtained in respect of the previous investigations. The advanced heat transfer models have been used to study the effects of thermo-geometric parameters, coefficient of heat transfer and thermal conductivity parameters on the temperature distribution, heat transfer and thermal performance of the longitudinal rectangular fin. It is applied a novel intelligent computational approach for searching the solution. In order to achieve this aim, the governing equation is transformed into an equivalent problem whose boundary conditions are such that they are convenient to apply reformed version of Chebyshev polynomials of the first kind. These Chebyshev polynomials based functions construct approximate series solution with unknown weights. The mathematical formulation of optimization problem consists of an unsupervised error which is minimized by tuning weights via interior point method. The trial approximate solution is validated by imposing tolerance constrained into optimization problem.
Efficient Blind Adaptive CSE to Reduce Cyclic Prefix Length in Direct Detection Optical OFDM Systems
Authors: Benieddi Asmaa , Elahmar Sid Ahmed 
Published: January 2019

Abstract
Direct detection optical orthogonal frequency division multiplexing (DDO-OFDM) systems for a long-reach of standard single mode fiber (SSMF) require a large length of cyclic prefix (CP) to avoid the inter-symbol interference (ISI) effect caused by group velocity dispersion (GVD). Unfortunately, this method is inefficient due to the energy wasted in CP samples. In order to reduce the CP length and to mitigate the residual ISI, a novel blind adaptive channel shortening equalizer (CSE) is proposed in this paper. Based on the orthogonality between subcarriers in the fast Fourier transform (FFT) property, the proposed algorithm attempts to minimize the sum-squared correlation (SSCM) between each sample located in a well-defined window to update the CSE coefficients. Thus, the combined channel-CSE response is shortened. Therefore, it can cancel the residual ISI effect due to the GVD and the short CP length. The performance of the system is evaluated on basis of bit error rate (BER) versus optical signal to noise ratio (OSNR) for different CP lengths. The simulation results validate the new algorithm SSCM and show that it can reduce the CP length with a much better system improvement than existing algorithms.
Mode Conversion Based on Lateral Misalignment between Two Multi-Ring Core Fibers for MDM System
Authors: Sabitu Rabiu Imam , Malekmohammadi Amin 
Published: January 2019

Abstract
In this report, mode conversion based on the lateral misalignment between two similar multi-ring core fibers (M-RCFs) is proposed. The conversion was achieved by varying the lateral height (y) and the distance (x) that separates the two M-RCFs. Based on the achieved coupled power of 94%, this technique may find application as a conversion device during multiplexing in mode-division multiplexed systems (MDM).
Toward a Coherent Framework: A Typology and Conceptualization of CSO Regulatory Regimes
Authors: DeMattee Anthony J. 
Published: January 2019

AbstractScholarship and practitioners interested in civil society organizations (CSOs) around the world have drawn attention to the growing set of laws—both restrictive and permissive—governing CSO activities. To date, however, there have been limited efforts to typologize these regulations which hinders the ability to analyze their emergence and effects. This article seeks to move scholarship toward a coherent framework by first, introducing a broad typology of governance, formation, operations, and resources provisions that allows for a systematic study of CSO laws and policies across contexts; and second, proposing four ideal-types of regulatory regimes, rigid-conservatism, bureaucratic-illiberalism, permissionless-association, and legitimized-pluralism. These regulatory regimes are political institutions that consist of multiple laws and constitutional protections that govern and protect civil society. The article theorizes the effect of each ideal-type regulatory regime on CSOs’ organizational ecology. To provide a concrete example, I apply the typology to the case of Kenya to show how its regulatory regime has changed incrementally over time. Methodologically, the article uses an iterative, inductive review and analysis of academic articles, book chapters, and practitioner reports contributing to our understanding of the laws and policies that regulate CSOs, or what I call CSO regulatory regimes.
Ultraschallbasierte Messung der Strömungsgeschwindigkeit von Flüssigkeiten und Gasen für den Einsatz in Drainageleitungen in Tunneln
Authors: Schwarz Michael , Uhl Bernhard , Zagar Bernhard G. , Stur Michael 
Published: January 2019

Zusammenfassung
Ein Zug, der durch einen Tunnel fährt, kann abhängig von seiner Geschwindigkeit eine starke Druckwelle verursachen. Diese kann unter ungünstigen Bedingungen die Druckverhältnisse im Tunnelentwässerungssystem negativ beeinflussen. Um diesen Effekt zu untersuchen, wird ein Messsystem benötigt, das die Strömungsverhältnisse im Drainagerohr sowohl für Luft als auch für Wasser mit hoher zeitlicher Auflösung misst. Da Bahntunnel meist ein sehr geringes Gefälle aufweisen, kann es unter Umständen auch zur kritischen Richtungsumkehr der Strömung von zunächst Luft und dann auch Wasser kommen. In diesem Beitrag wird ein ultraschallbasiertes Messsystem vorgestellt, das die simultane vorzeichenrichtige Messung der Strömungsgeschwindigkeiten von Luft und Wasser ermöglicht. Es basiert auf dem akustischen Laufzeitdifferenzverfahren und ist zur Erfassung von Strömungsgeschwindigkeiten im Bereich weniger cm/s bis maximal m/s geeignet. Der Aufbau des Messsystems wird vorgestellt und anschließend seine Leistungsfähigkeit anhand von Messdaten gezeigt.
Centrifuge Modeling of Axial Pipe-Soil Interaction of Deep-Water Pipelines
Authors: Satchithananthan U. , Ullah S. N. , Lee F. H. , Chen Z. , Gu H. 
Published: January 2019

Abstract
This article describes equipment primarily developed for modeling axial pipe-soil interaction of offshore pipelines in a beam centrifuge. The equipment can displace the pipe axially and simulate vertical forces or oscillations acting on the pipe while the pipe is instrumented to measure the contact stresses, pore pressure, and sliding resistance. Axial motion is actuated by a servomotor actuator coupled to a chain-drive system that moves the pipe in the axial direction relative to the soil bed. A closed-loop servo-driven vertical actuator simulates the vertical forces or oscillations acting on the pipe. The centrifuge model tests were conducted under 10-g model gravity. The pipe penetration response, axial pipe-soil resistance, and pore pressure behavior beneath the pipe were investigated. A higher axial pipe-soil resistance was measured for axial shearing of the pipe that was relatively slow compared to rapid axial shearing. For rapid pipe shearing, high excess pore pressure was generated at the pipe invert compared to relatively low pore water pressure for slower movement of the pipe. The results show that the developed equipment is capable of producing highly consistent results over the range of drained and undrained response, which also agree well with recently reported finite element studies and shear box tests conducted to explore long-term axial friction. This makes the equipment potentially useful for generating high-quality data under controlled conditions in the centrifuge for mechanistic and validation studies.
The Ventral Midline Thalamus Mediates Hippocampal Spatial Information Processes upon Spatial Cue Changes
Authors: Jung Dahee , Huh Yeowool , Cho Jeiwon 
Published: January 2019

The ventral midline thalamus, consisting of the reuniens and rhomboid nuclei (RE/Rh), is a thalamic structure interconnected with the limbic systems including the hippocampus. Recently, many studies have revealed that this structure plays distinctive roles in spatial learning and memory in collaboration with hippocampal functions. However, what aspects of spatial information process are influenced by the RE/Rh is not clearly known. To elucidate the roles of RE/Rh in spatial information processing and its effects on hippocampal activity, specifically with the manipulation of spatial contents, we measured hippocampal-dependent spatial memory performance and hippocampal place cell activities after RE/Rh lesion using male C57BL/6J × 129/SvJae hybrid mice. We found that the lesion altered the behavioral aptitude in recognizing locational changes of an object. Furthermore, CA1 place cells in the lesion group showed different spatial representation patterns in recognizing the environment with cue locational changes compared with the control group. Interestingly, the patterns of CA1 place cells in recognizing the same environment previously visited were not disrupted in the lesion group compared with the control group. These findings demonstrate that the ventral midline thalamus (RE/Rh) is important in recognizing the spatial relationships, especially when spatial rearrangement of cue position was introduced.SIGNIFICANCE STATEMENTThe ventral midline thalamic nuclei (reuniens and rhomboid) interact with the hippocampus to influence various cognitive functions requiring spatial memories, yet what aspects of spatial information process are influenced by these nuclei is not clearly known. Here, we reveal that these nuclei play a crucial role in modulating hippocampal properties only with locational rearrangement of cues, not with the familiar arrangement. These nuclei are distinctively involved in cue-dependent spatial information processes of CA1 place cells. In particular, we suggest that these nuclei modulate spatial information processing on discrete components, especially when the spatial cue relationship is modified.
KEKERASAN DALAM PACARAN PADA REMAJA
Authors: Purnama Fenita 
Published: January 2019

Menurut Legal Resources Center untuk Keadilan Jender dan Hak Asasi Manusia (LRC-KJHAM) Jawa Tengah, pada awal hingga pertengahan 2014 tercatat korban kasus kekerasan terhadap perempuan berjumlah 386 perempuan. Dari ratusan korban itu, terdapat enam orang meninggal dunia karena kasus kekerasan dalam pacaran (KDP). LRC-KJHAM Jawa Tengah menyatakan kasus kekerasan terhadap perempuan di Jawa Tengah tersebar di 31 kabupaten dan kota. Kasus paling banyak terjadi di Kota Semarang dengan 117 kasus. Tujuan penelitian ini adalah untuk mengetahui faktor-faktor yang mempengaruhi kekerasan dalam pacaran pada remaja di Kota Semarang. Jenis Penelitian ini merupakan penelitian deskriptif analitik dengan tipe Explanatory Research dengan pendekatan kuantitatif. Jumlah sampel penelitian adalah 260 sampel. Hasil penelitian menunjukkan bahwa terdapat hubungan antara variabel frekuensi pacaran (nilai p = 0,001), self esteem (nilai p = 0,041), self image (nilai p = 0,000), dan persepsi tentang peran gender (nilai p = 0,048) dengan kekerasan dalam pacaran . Pada analisis multivariat, secara bersama-sama ada pengaruh frekuensi pacaran, self image, self esteem, dan persepsi tentang peran gender terhadap kekerasan dalam pacaran pada remaja Kota Semarang. Variabel yang paling berpengaruh terhadap kekerasan dalam pacaran adalah self image (OR 3,330). Saran dalam penelitian ini adalah Bagi Instansi terkait baik Dinas Pendidikan maupun sekolah dapat memberikan pendidikan dan penyuluhan mengenai peningkatan self image, self esteem, dan persepsi tentang peran gender guna mencegah kekerasan dalam pacaran.
Acceptance and Commitment Therapy for Parental Management of Childhood Asthma: An RCT
Authors: Chong Yuen-yu , Mak Yim-wah , Leung Sui-ping , Lam Shu-yan , Loke Alice Yuen 
Published: January 2019

BACKGROUND:
Few trials have been conducted to address the psychological difficulties of parents in managing their child’s asthma. Fostering parental psychological flexibility through Acceptance and Commitment Therapy (ACT) may help parents to accept these psychological difficulties and improve their management of childhood asthma.

METHODS:
In this randomized controlled trial, a 4-session, group-based ACT plus asthma education (ACT group) was compared with an asthma education talk plus 3 telephone follow-ups (control group) to train parents of children diagnosed with asthma. The use of health care services due to asthma exacerbations in children and the psychological well-being of their parents were assessed before, immediately after, and at 6 months after the intervention.

RESULTS:
A total of 168 parents and their children aged 3 to 12 years with asthma were consecutively recruited in a public hospital in Hong Kong. When compared with the control group, children whose parents were in the ACT group made significantly fewer emergency department visits (adjusted 6-month incidence rate ratio = 0.20; confidence interval [CI] 0.08 to 0.53; P = .001) due to asthma exacerbations at 6 months postintervention. These parents also reported a decrease in psychological inflexibility (mean difference = −5.45; CI −7.71 to −3.30; P = .014), less anxiety (mean difference = −2.20; CI −3.66 to −0.73; P = .003), and stress (mean difference = −2.50; CI −4.54 to −0.47; P = .016).

CONCLUSIONS:
Integrating ACT into parental asthma education was effective at decreasing parental anxiety and stress and reducing the asthma-related emergency department visits of children at 6 months postintervention.
Addressing Racial Inequities in Breastfeeding in the Southern United States
Authors: Merewood Anne , Bugg Kimarie , Burnham Laura , Krane Kirsten , Nickel Nathan , Broom Sarah , Edwards Roger , Feldman-Winter Lori 
Published: January 2019

BACKGROUND:
Race is a predictor of breastfeeding rates in the United States, and rates are lowest among African American infants. Few studies have assessed changes in breastfeeding rates by race after implementing the Ten Steps to Successful Breastfeeding (hereafter referred to as the Ten Steps), and none have assessed the association between implementation and changes in racial disparities in breastfeeding rates. Our goal was to determine if a hospital- and community-based initiative in the Southern United States could increase compliance with the Ten Steps, lead to Baby-Friendly designation, and decrease racial disparities in breastfeeding.

METHODS:
Hospitals in Mississippi, Louisiana, Tennessee, and Texas were enrolled into the Communities and Hospitals Advancing Maternity Practices initiative from 2014 to 2017 and received an intensive quality improvement and technical assistance intervention to improve compliance with the Ten Steps. Community partners and statewide organizations provided parallel support. Hospitals submitted monthly aggregate data stratified by race on breastfeeding, skin-to-skin care, and rooming in practices.

RESULTS:
The disparity in breastfeeding initiation between African American and white infants decreased by 9.6 percentage points (95% confidence interval 1.6–19.5) over the course of 31 months. Breastfeeding initiation increased from 66% to 75% for all races combined, and exclusivity increased from 34% to 39%. Initiation and exclusive breastfeeding among African American infants increased from 46% to 63% (P &lt; .05) and from 19% to 31% (P &lt; .05), respectively. Skin-to-skin care after cesarean delivery was significantly associated with increased breastfeeding initiation and exclusivity in all races; rooming in was significantly associated with increased exclusive breastfeeding in African American infants only.

CONCLUSIONS:
Increased compliance with the Ten Steps was associated with a decrease in racial disparities in breastfeeding.
Az önkéntes gyermektelenség pszichológiája: Szakirodalmi áttekintés
Authors: Kis Andrea 
Published: January 2019

Jelen elméleti fókuszú tanulmány az önkéntes gyermektelenség jelenségkörének pszichés és szociológiai vonatkozásairól szóló jelentősebb kutatások eredményeit foglalja össze mind nemzetközi, mind hazai kutatásokat alapul véve. Szisztematikus kulcsszókeresés módszerével elsősorban az angol nyelvű adatbázisokban elérhető tanulmányok kerültek áttekintésre, de a magyar szakirodalom is felhasználásra került.A téma napjaink társadalmi változásainak egyik fontos és sokszínű eleme, mégis periférikus helyzetűnek nevezhető. Hazánkban szinte egyáltalán nem, míg a nemzetközi szakirodalomban igen mozaikosan jelenik meg – nagy időbeli és térbeli eltérések akadnak egy-egy vizsgálat vagy tanulmány megjelenése között. Emiatt jelen írás céljai közé tartozik az is, hogy ezen paraméterek figyelembevételével egységesebb képet alkothassunk nem csupán magáról a témáról, de a téma kutatási hátterének jelen helyzetéről is.A szakirodalmi háttér figyelembevételével egyértelműnek tűnő következtetés az, hogy a gyermektelenség mellett határozók olyan speciális csoportot alkotnak a gyermektelenek között, mely közel sem homogén, mégis bizonyos specifikus pszichés és szociáldemográfiai jellemzők mentén jól differenciálható. Nehéz azonban ezen a csoporton belül kategóriákat felállítani és a pontos fogalmi háttér tekintetében is megoszlanak a vélemények. Elmondható az is, hogy gyerekcipőben jár a jelenség hazai vizsgálata – magyar szerzők eddig elsősorban szociológiai vagy demográfiai megközelítéssel vizsgálták a jelenségkört.A pszichés ok-okozati mechanizmusokat feltárni hivatott vizsgálatok kicsiny száma és eredményeik fragmentáltsága szintén nehézzé teszi a téma személyiséglélektani és fejlődéslélektani vetületeiről való érdemi gondolkodást. Ami a szociálpszichológiai megközelítést illeti, a pronatalista társadalmak által devianciának interpretált gyermekmentesség társadalmi elfogadására és a stigmák eltörlésére irányuló lehetőségek vizsgálata kevéssé kutatott téma, de egyes tanulmányok felvetik ennek szükségességét. A magyarországi gyakorlatban mindez ma még nem magától értetődő.Összességében a tanulmány célja a fentebb körvonalazott eredmények ismertetése, valamint a további, a témába vágó pszichológiai kutatások ösztönzése.
CoCrFeMnNi high-entropy alloys reinforced with Laves phase by adding Nb and Ti elements
Authors: Qin Gang , Li Zibo , Chen Ruirun , Zheng Huiting , Fan Chenlei , Wang Liang , Su Yanqing , Ding Hongsheng , Guo Jingjie , Fu Hengzhi 
Published: January 2019

Abstract
Ein Vergleich verschiedener Abferkelsysteme
Authors: Höbel Christina , Patzkéwitsch Dorian , Reese Sven , Erhard Michael , Klein Sandrina 
Published: January 2019

Zusammenfassung
Ziel dieser Studie war, Auswirkungen von alternativen Abferkelbuchten (Buchten mit temporärer Fixierung) auf das Verhalten von Mutter-schweinen und Ferkeln aufzuzeigen. Zudem sollten die Produktionsdaten in zwei verschiedenen alternativen Abferkelbuchten und in der konventionellen Haltung im Kastenstand unter praktischen Bedingungen verglichen werden. Material und Methoden: Im Versuchszeitraum (April 2016 – Februar 2017) wurden in acht Durchgängen die Produktionsdaten von insgesamt 113 Sauen in zwei alternativen Abferkelbuchten („Petra“ [P] und „Freya“ [F]) und im konventionellen Kastenstand (K) erfasst. In Verhaltensbeobachtungen bei 103 Mutter-schweinen und ihren Ferkeln wurde das Ablegeverhalten der Sauen nach definierten Parametern für ein „vorsichtiges“ Ablegen und das Aktivitätsverhalten der Ferkel untersucht. Des Weiteren erfolgte eine Analyse der einzelnen Erdrückungsvorgänge. Ergebnisse: Die Produktionsleistungen der Tiere differierten in den drei Abferkelbuchten nicht signifikant. Der Großteil der Erdrückungsverluste ereignete sich in allen Buchtensystemen bei geschlossenem Abferkelstand. In den beiden alternativen Abferkelbuchten zeigten die Sauen ein achtsameres Ablegen als im Kastenstand. Die Ferkelaktivität war in Bucht F im Vergleich zu den Buchten K und P im gesamten Beobachtungszeitraum signifikant höher (p < 0,001). Schlussfolgerung und klinische Relevanz: Den Ergebnissen zufolge wirkt sich eine Reduktion der Fixierungsdauer im Abferkelstand und ein höheres Platzangebot positiv auf das Verhalten der Mutterschweine aus. Auch auf das Verhalten der Ferkel konnte ein positiver Einfluss der alternativen Abferkelbuchten dargestellt werden. Eine Fixierung der Mutterschweine über die komplette Säugezeit zur Vermeidung von Ferkelverlusten stellt aufgrund der in dieser Untersuchung erfassten Produktionsleistungen keine Notwendigkeit dar und ist aus Tierschutzsicht nicht zu vertreten.