bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hypertension induced by pregnancy and neonatal outcome: Results from a retrospective cohort study in preterm under 34 weeks
Authors: Rocha de Moura Marta David , Margotto Paulo Roberto , Nascimento Costa Karina , Carvalho Garbi Novaes Maria Rita 
Published: August 2021

ObjectiveThe present study seeks to assess the impact of gestational hypertensive disorders on premature newborns below 34 weeks and to establish the main morbidities and mortality in the neonatal period and at 18 months.Materials and methodsA retrospective observational study was carried out with 695 premature newborns of gestational age (GA) between 24 and 33 weeks and 6 days, born alive in the Neonatal ICU of Brasília’s Mother and Child Hospital (HMIB), in the period from January 1, 2014, to July 31, 2019. In total, 308 infants were born to hypertensive mothers (G1) and 387 to normotensive mothers (G2). Twin pregnancies and diabetic patients with severe malformations were excluded. Outcomes during hospitalization and outcomes of interest were evaluated: respiratory distress syndrome (RDS), brain ultrasonography, diagnosis of bronchopulmonary dysplasia (BPD), diagnosis of necrotizing enterocolitis, retinopathy of prematurity, breastfeeding rate at discharge, survival at discharge and at 18 months of chronological age and relationship between weight and gestational age.ResultsNewborns with hypertensive mothers had significantly lower measurements of birth weight and head circumference. The G1 group had a higher risk small for gestational age (OR 2.4; CI 95% 1.6–3.6; p <0.00), as well as a greater risk of being born with a weight less than 850 g (OR 2.4; 95% CI 1.2–3.5; p <0.00). Newborns of mothers with hypertension presented more necrotizing enterocolitis (OR 2.0; CI 95% 1.1–3.7); however, resuscitation in the delivery room and the need to use surfactant did not differ between groups, nor did the length of stay on mechanical ventilation, or dependence on oxygen at 36 weeks of gestational age. Survival was better in newborns of normotensive mothers, and this was a protective factor against death (OR 0.7; 95% CI 0.5–0.9; p <0.01). In the follow-up clinic, survival at 18 months of chronological age was similar between groups, with rates of 95.3% and 92.1% among hypertensive and normotensive mothers, respectively. Exclusive breastfeeding at discharge was 73.4% in the group of hypertensive women and 77.3% in the group of normotensive mothers. There were no significant differences between groups.ConclusionAmong the analyzed outcomes, arterial hypertension during pregnancy can increase the risk of low weight, small babies for gestational age (SGA), deaths in the neonatal period and enterocolitis, with no differences in weight and survival at 18 months of chronological age. Arterial hypertension presents a high risk of prematurity in the neonatal period, with no difference at 18 months of age.
The narrative function of temporal signs: toward a semio-narratology approach
Authors: Zeng Jun , Wang Mengqiu 
Published: August 2021

Abstract
Both narrative semiotics and semio-narratology are concerned with the relationship between “history” and “structure,” and consequently the academic focus in these areas has shifted to time. Do “temporal signs” exist? How is time semiotized by signs in narration? How do the narrative functions of temporal signs work? This paper answers these questions and explores semio-narratology, in a break with the ahistorical discourses of narrative semiotics, by way of a detailed analysis of The True Story of Ah Q and other works of modern fiction.
Konstruktive interkulturelle Organisationsentwicklung durch paradigmatische Perspektivenvielfalt
Authors: Barmeyer Christoph 
Published: August 2021

ZusammenfassungOrganisationsentwicklung hat zum Ziel, das Problemlösungspotenzial und die Selbsterneuerungsfähigkeit von Organisationen zu erhöhen. Dabei versucht Organisationsentwicklung die Zielerreichung der Organisation unter gleichzeitiger Einbeziehung der Bedürfnisse der Mitarbeiter und anderer involvierter Stakeholder zu unterstützen. Im interkulturellen Kontext ist Organisationsentwicklung zusätzlich mit Herausforderungen konfrontiert, die zum Beispiel das unterschiedliche Verständnis von Organisationen als soziale Systeme oder die Beteiligung und Mitwirkung von Mitarbeitern an Entscheidungen und Arbeitsprozessen betrifft.Zentral für gelingende Interkulturalität ist Perspektivenvielfalt, denn in einem interpretativen Verständnis wird Wirklichkeit konstruiert und hängt von den Hintergründen und Sichtweisen der beteiligten Akteure ab. Diesermultiparadigmatische Ethnorelativismuskann dabei helfen Interkulturalität in Organisationen in ihrer Vielfalt und Differenziertheit zu erfassen.In diesem Artikel werden zentrale Themenfelder der interkulturellen Organisationsentwicklung multiperspektivisch anhand multipler Kulturen und unterschiedlicher paradigmatischer Grundhaltungen illustriert. Multiperspektivische Sichtweisen zeigen in Richtung einer konstruktiven interkulturellen Organisationsentwicklung, die kulturelle Vielfalt in Lern- und Entwicklungsprozesse überführt.
Performance analysis of adaptive smart controllers for islanded microgrid
Authors: Bhattacharya Aniruddha B. , Singh Madhusudan 
Published: August 2021

AbstractThis paper presents implementation of control method for dual control of Voltage and Current control and Power sharing coupled with Demand Response for the islanded microgrid. These three controller viz Voltage and current controller, Power sharing controller and smart load controller while acting in unison can able to maintain long layoff from the connection requirement of the main grid. The paper uses state space inverter based generator model with close loop Voltage and Current control and Power sharing controller will enhance microgrid stability and transient response where smart load controller which uses state space model for voltage,current and Phase Locked Loop units to estimate reserve power available from smart load for better voltage and frequency regulation. Voltage current Controller and Power Sharing Controller will also assist the microgrid for smooth disconnection of microgrid from main grid while smart load controller will use its point of load voltage control for smooth islanding of microgrid. This control technique henceforth called tripartite control technique, compared with classical controller connected to microgrid in maintaining frequency, voltage with power sharing of the inverter driven by renewable generator. This paper investigate the operation performance issues of test Microgrid using Tripartite Control Technique. Simulation results indicate close approximation with experimental results
Theoretical investigations on correlations between elastic behavior of Al-based alloys and their electronic structures
Authors: Liu Wen , Zhang Chi , Wang Chunge , Yan Xiang , Hu Xiaoxiong , Xu Pingjun , Ye Xinyu , Zhuang Zhongzhu , Liu Pengfei , Lei Shuyu 
Published: August 2021

Abstract
In this work, using the first-principles method, the alloying stability, electronic structure, and elastic properties of Al-based intermetallics were investigated. It was found that these alloys have a strong alloying ability and structural stability due to the negative formation energies and the cohesive energies. The valence bonds of these intermetallic compounds are attributed to the valence electrons of Cu 3δ states for AlCu3, Cu 3δ and Zr 4δ states for AlCu2Zr, and Al 3s, Zr 5s and 4δ states for AlZr3, respectively. Furthermore, the correlation between elastic properties of these intermetallic compounds and their electronic structures was revealed. The results show that structural parameters and elastic properties such as bulk modulus, shear modulus, Young’s modulus, Poisson’s ratio and anisotropy agreed well with experimental results.
Multiwave interaction solutions for a (3 + 1)-dimensional B-type Kadomtsev–Petviashvili equation in fluid dynamics
Authors: Cui Wenying , Liu Yinping , Li Zhibin 
Published: August 2021

Abstract
In this paper, a (3 + 1)-dimensional B-type Kadomtsev–Petviashvili (BKP) equation is investigated and its various new interaction solutions among solitons, rational waves and periodic waves are obtained by the direct algebraic method, together with the inheritance solving technique. The results are fantastic interaction phenomena, and are shown by figures. Meanwhile, any higher order interaction solutions among solitons, breathers, and lump waves are constructed by an N-soliton decomposition algorithm developed by us. These innovative results greatly enrich the structure of the solutions of this equation.
The incidence of different forms of ileus following surgery for abdominal birth defects in infants: a systematic review with a meta-analysis method
Authors: Eeftinck Schattenkerk Laurens D. , Musters Gijsbert D. , Nijssen David J. , de Jonge Wouter J. , de Vries Ralph , van Heurn L.W. Ernest , Derikx Joep P.M. 
Published: August 2021

Abstract

Objectives
Ileus following surgery can arise in different forms namely as paralytic ileus, adhesive small bowel obstruction or as anastomotic stenosis. The incidences of these different forms of ileus are not well known after abdominal birth defect surgery in infants. Therefore, this review aims to estimate the incidence in general between abdominal birth defects.

Content
Studies reporting on paralytic ileus, adhesive small bowel obstruction or anastomotic stenosis were considered eligible. PubMed and Embase were searched and risk of bias was assessed. Primary outcome was the incidence of complications. A meta-analysis was performed to pool the reported incidences in total and per birth defect separately.

Summary
This study represents a total of 11,617 patients described in 152 studies of which 86 (56%) had a follow-up of at least half a year. Pooled proportions were calculated as follows; paralytic ileus: 0.07 (95%-CI, 0.05–0.11; I
2=71%, p≤0.01) ranging from 0.14 (95% CI: 0.08–0.23) in gastroschisis to 0.05 (95%-CI: 0.02–0.13) in omphalocele. Adhesive small bowel obstruction: 0.06 (95%-CI: 0.05–0.07; I
2=74%, p≤0.01) ranging from 0.11 (95% CI: 0.06–0.19) in malrotation to 0.03 (95% CI: 0.02–0.06) in anorectal malformations. Anastomotic stenosis after a month 0.04 (95%-CI: 0.03–0.06; I
2=59%, p=0.30) ranging from 0.08 (95% CI: 0.04–0.14) in gastroschisis to 0.02 (95% CI: 0.01–0.04) in duodenal obstruction. Anastomotic stenosis within a month 0.03 (95%-CI 0.01–0.10; I
2=81%, p=0.02) was reviewed without separate analysis per birth defect.

Outlook
This review is the first to aggregate the known literature in order approximate the incidence of different forms of ileus for different abdominal birth defects. We showed these complications are common and the distribution varies between birth defects. Knowing which birth defects are most at risk can aid clinicians in taking prompt action, such as nasogastric tube placement, when an ileus is suspected. Future research should focus on the identification of risk factors and preventative measures. The incidences provided by this review can be used in those studies as a starting point for sample size calculations.
Kinematics of global mean thermosteric sea level during 1993–2019
Authors: İz H. Bâki 
Published: August 2021

Abstract
Because oceans cover 71% of Earth’s surface, ocean warming, consequential for thermal expansion of sea water, has been the largest contributor to the global mean sea level rise averaged over the 20
th
and the early 21
st
century. This study first generates quasi-observed monthly globally averaged thermosteric sea level time series by removing the contributions of global mean sea level budget components, namely, Glaciers, Greenland, Antarctica, and Terrestrial Water Storage from satellite altimetry measured global sea level changes during 1993–2019. A baseline kinematic model with global mean thermosteric sea level trend and a uniform acceleration is solved to evaluate the performance of a rigorous mixed kinematic model. The model also includes coefficients of monthly lagged 60 yearlong cumulative global mean sea surface temperature gradients and control variables of lunisolar origins and representations for first order autoregressive disturbances. The mixed kinematic model explains 94% (Adjusted R
2)1 of the total variability in quasi-observed monthly and globally averaged thermosteric time series compared to the 46% of the baseline kinematic model’s Adjusted R
2. The estimated trend, 1.19±0.03 mm/yr., is attributed to the long-term ocean warming. Whereas eleven statistically significant (α = 0.05) monthly lagged cumulative global mean sea surface temperature gradients each having a memory of 60 years explain the remainder transient global mean thermosteric sea level changes due to the episodic ocean surface warming and cooling during this period. The series also exhibit signatures of a statistically significant contingent uniform global sea level acceleration and periodic lunisolar forcings.
Kinematic GNSS positioning results compared against Agisoft Metashape and Pix4dmapper results produced in the San Joaquin experimental range in Fresno County, California
Authors: Berber M. , Munjy R. , Lopez J. 
Published: August 2021

Abstract
RTKLIB which is an open source Global Navigation Satellite Systems (GNSS) software has gained rapid acceptance among Surveying professionals thanks to recent developments in UAS (Unmanned Aerial System) technology. RTKLIB enables standard and precise point positioning (PPP) in real-time and post-processing modes to be performed. As such, UAS users utilize this software to analyze GNSS data collected by GNSS systems on UAS. By being versatile and free, RTKLIB is commonly used by many; however, it is not the only freely available GNSS software. There are also freely available online GNSS data processing software running on servers. These online GNSS data processing services provide data processing in static, kinematic and rapid static modes. Because UAS collect data in kinematic mode, in this study, kinematic data processing by aforementioned software (CSRS-PPP, GAPS and APPS) is analyzed. The results coming from these software are compared against the results produced by photogrammetric software (Agisoft Metashape and Pix4Dmapper). The aim of this practical project is to produce generalizable knowledge about the performance of these software. It is found out that RTKLIB and CSRS-PPP achieved cm-level precision. Yet, GAPS and APPS achieved dm-level precision both for horizontal and vertical coordinates. This study demonstrates the precision and accuracy expected from these software if they are used for kinematic GNSS data processing.
Semiprimeness of semigroup algebras
Authors: Guo Junying , Guo Xiaojiang 
Published: August 2021

AbstractAbundant semigroups originate from p.p. rings and are generalizations of regular semigroups. The main aim of this paper is to study the primeness and the primitivity of abundant semigroup algebras. We introduce and studyD∗{{\mathcal{D}}}^{\ast }-graphs and Fountain matrices of a semigroup. Based onD∗{{\mathcal{D}}}^{\ast }-graphs and Fountain matrices, we determine when a contracted semigroup algebra of a primitive abundant semigroup is prime (respectively, semiprime, semiprimitive, or primitive). It is well known that for any algebraA{\mathcal{A}}with unity,A{\mathcal{A}}is primitive (prime) if and only if so isMn(A){M}_{n}\left({\mathcal{A}}). Our results can be viewed as some kind of generalizations of such a known result. In addition, it is proved that any contracted semigroup algebra of a locally ample semigroup whose set of idempotents is locally finite (respectively, locally pseudofinite and satisfying the regularity condition) is isomorphic to some contracted semigroup algebra of primitive abundant semigroups. Moreover, we obtain sufficient and necessary conditions for these classes of contracted semigroup algebras to be prime (respectively, semiprime, semiprimitive, or primitive). Finally, the structure of simple contracted semigroup algebras of idempotent-connected abundant semigroups is established. Our results enrich and extend the related results on regular semigroup algebras.
Several explicit formulas for (degenerate) Narumi and Cauchy polynomials and numbers
Authors: Qi Feng , Dağlı Muhammet Cihat , Lim Dongkyu 
Published: August 2021

Abstract
In this paper, with the aid of the Faà di Bruno formula and by virtue of properties of the Bell polynomials of the second kind, the authors define a kind of notion of degenerate Narumi numbers and polynomials, establish explicit formulas for degenerate Narumi numbers and polynomials, and derive explicit formulas for the Narumi numbers and polynomials and for (degenerate) Cauchy numbers.
Pathways to radicalization in adolescence: The development of ideological beliefs, acceptance of violence, and extremist behavior
Authors: Bliesener Thomas , Schröder Carl Philipp , Lehmann Lena 
Published: August 2021

Abstract
This paper examines the link between attitudes, the acceptance of violence and the performance of extremist acts. It is tested, if different ideologies of extremism develop commonalities in their positions, attitudes and structures. Data from a school survey of more than 6,700 9th grade students from Germany serves as the empirical basis. The results show among other things that different extremist ideologies (right-wing, left-wing, Islamism) covary on the level of attitudes, acceptance of violence and extremist behavior. In a further step of analysis, the theoretically based paths of initially extremist attitudes, then an additional approval of violence and finally the commission of extremist acts was examined approximately in a person-oriented approach. Except for one path, the analyses of radicalization patterns confirm a model that commences on the cognitive level, followed by the acceptance of deviant means to reach ideological goals and finally leading to extremist acts.
Evaluation of S-N curves including failure probabilities using short-time procedures
Authors: Acosta Ruth , Boller Christian , Doktor Markus , Wu Haoran , Jost Hanna , Weber Fabian , Starke Peter 
Published: August 2021

AbstractIn recent years, different short-time procedures have been developed that significantly reduce the experimental effort required to generate S-N curves and thus S-N databases. Methods like StressLife, StrainLife, and SteBLife are some of those which have shown enormous potential in this respect. In this contribution, the practicability of the SteBLife method is shown. Two S-N curve evaluation strategies based on temperature and magnetic field measurements are presented. These take statistical evaluation into account, describing a material’s scatter in terms of fatigue life. In order to demonstrate the versatility of the approach and to underline the advantages in terms of effort saved when compared to conventional procedures, the process on how to get the required information obtained is shown for three unalloyed and low-alloyed steels under different heat treatment conditions.
Optimal design and experimental investigation of teeth connection joint on a filament wound composite transmission shaft
Authors: Luo Rui , Li Yong , Huan Dajun , Wang Wuqiang , Wang Junsheng , Jiao Yang , Zhu Kang , Zhou Yan 
Published: August 2021

Abstract
For limited weight reduction and avoidance of composite damage caused by the press mounting of the traditional metal teeth press-fit joint, a novel teeth connection joint technique of the fiber wound composite transmission shaft was investigated by theoretical analysis, finite element simulation, and experiment verification. Based on the mechanics of composite materials, the expressions of equilibrium torsional stiffness and static torsional strength were derived. According to the three-dimensional Chang-Chang failure criterion, its finite element model of progressive damage analysis was established through the user material subroutine. Applying the fast curing resin system, a typical sample of the structure was prepared through co-curing for the static torsional strength test, and its failure details of the fracture surface were observed by using a scanning electron microscope, which confirmed the validity of theoretical and numerical results. Based on this, the influence of the ply method and geometric characteristics on the failure strength was studied, and the optimal design of the joint was realized by the genetic algorithm. Compared with the press-fit joint, this structure reduces weight by 70 % under the same joint strength, which provides a new way for the connection of the composite transmission shaft.
Mehrheitswahlen in Mehrpersonenwahlkreisen: Ein Schweizer Erfolgsrezept?
Authors: Eichenberger Reiner , Portmann Marco , Schafer Patricia , Stadelmann David 
Published: August 2021

Zusammenfassung
Die Schweiz gilt als wirtschaftlich und gesellschaftlich erfolgreich. Was steckt dahinter und was können andere Länder davon lernen? Eine verbreitete und mit moderner Ökonomie gut vereinbare Erklärung sind ihre besonderen politischen Institutionen mit direkter Demokratie und kleinräumigem Föderalismus. Tatsächlich aber hat die Schweiz eine dritte Institution, deren Rolle bisher verkannt wird: ihr Wahlsystem. Es beruht auf einer einmaligen Mischung von Verhältniswahlen und Mehrheitswahlen, wobei die meisten Parlamentssitze in Verhältniswahlen, aber die für viele Politiker attraktiveren Mandate in den Regierungen sowie im Ständerat in Mehrheitswahlen besetzt werden. Dabei finden die Mehrheitswahlen meist in Mehrpersonenwahlkreisen und nicht wie international üblich in Einpersonenwahlkreisen statt. Diese Mischung gibt den Parteien Anreize, für die Mehrheitswahlen weniger Kandidaten aufzustellen, als Sitze zu besetzen sind, und es veranlasst die ambitionierten Politiker, sich in der Mitte des politischen Spektrums zu positionieren. Als Folge werden zumeist Kandidaten aller großen Parteien gewählt und die Regierungen und Parlamentsdelegationen sind parteilich stark durchmischt, was eine entscheidende Ursache der für die Schweiz typischen „Konkordanz“ und hohen politischen Stabilität ist.
Comparison of biochemical and immunological biomarker levels of patients with COVID-19 with healthy individuals
Authors: Ercin Ugur , Turk Aribas Emel , Tuncbilek Semra , Kaya Canturk , Sepici Dincel Aylin , Bilgihan Ayse , Tekeli Mehmet Emin 
Published: August 2021

Abstract

Objectives
It was aimed to compare Alpha-1 antitrypsin (AAT), Alpha-1 acid glycoprotein (AGP), Total Immunoglobulin M (Total IgM), Total Immunoglobulin G (Total IgG), Galectin-3 (Gal3), and severe acute respiratory syndrome coronavirus 2 IgG (SARS-CoV-2 IgG) levels in patients with COVID-19 and healthy individuals.

Methods
The study included a total of 86 participants, 44 patients diagnosed with COVID-19 by real-time reverse transcription-polymerase chain reaction (rRT-PCR) test and 42 as the control group. AAT, AGP, Total IgM, and Total IgG levels were measured using the immunoturbidimetric method. Gal3 and SARS-CoV-2 IgG levels were measured using the chemiluminescent microparticle immunoassay method.

Results
AAT, AGP, Total IgG, Gal3, and SARS-CoV-2 IgG levels were found to be significantly higher in the patient group compared to the control group (p<0.001 for all tests). In the patient group, there was a moderate correlation between AAT-AGP and SARS-CoV-2 IgG-AAT (r=0.692; r=0.561, respectively).

Conclusions
High levels of AAT, AGP, Total IgG, Gal3, and SARS-CoV-2 IgG in the patient group and correlations between variables suggest that these parameters may be involved in the pathogenesis of the disease and provide an idea about the prognosis of the disease. However, new studies on this subject are needed in order to clearly reveal the laboratory tests related to the clinical course of the disease.