bluuebunny/crossref_metadata_2025 huggingface dataset:
Wireless link pairing toward secured 6G networks
Authors: Hussein Ahmed F. , Elgala Hany
Published: June 2020

Hybrid wireless networks are foreseen to play a major role in the
visioning and planning of the sixth generation (6G) network. Most of
the 6G applications are human-centric, and thus high security and
privacy are key features. Recently, physical layer (PHY) security has
become an emerging area of research. This work introduces a novel, to
the best of our knowledge, PHY security approach called wireless link
pairing (WiLP). In WiLP, signals received from both air interfaces in
a hybrid radio frequency and optical network are required for
successful signal reconstruction and processing at the receiver. The
transmitted packets based on the IEEE 802.11 standards are redesigned,
and improvements in performance are validated via simulations and
experimental measurements using software-defined radio platforms. The
obtained results demonstrate improvements in bit-error rate (BER) and
the secrecy capacity for multiple modulation and coding
schemes.
Edge mode bifurcations of two-dimensional topological lasers
Authors: Gündoğdu Sinan , Thingna Juzar , Leykam Daniel
Published: June 2020

Topological lasers are of growing interest as a way to achieve disorder-robust single-mode lasing using arrays of coupled resonators. We study lasing in a two-dimensional coupled resonator lattice exhibiting transitions between trivial and topological phases, which allows us to systematically characterize the lasing modes throughout a topological phase. We show that, unlike conventional topological robustness that requires a sufficiently large bulk band gap, bifurcations in topological edge mode lasing can occur even when the band gap is maximized. We show that linear mode bifurcations from single-mode to multi-mode lasing can occur deep within the topological phase, sensitive to both the pump shape and lattice geometry. We suggest ways to suppress these bifurcations and preserve single-edge mode lasing.
Plasmonic nanojet: an experimental demonstration: publisher’s note
Authors: Minin Igor V. , Minin Oleg V. , Glinskiy Igor A. , Khabibullin Rustam A. , Malureanu Radu , Lavrinenko Andrei V. , Yakubovsky Dmitry I. , Arsenin Aleksey V. , Volkov Valentyn S. , Ponomarev Dmitry S.
Published: June 2020

This publisher’s note contains corrections to Opt. Lett.
45, 3244 (2020)OPLEDP0146-959210.1364/OL.391861.
Vortex Smith–Purcell radiation generation with holographic grating
Authors: Wang Mengxuan , Liu Fang , Lin Yuechai , Cui Kaiyu , Feng Xue , Zhang Wei , Huang Yidong
Published: June 2020

Smith–Purcell radiation (SPR) is the electromagnetic wave generated by free electrons passing above a diffraction grating, and it has played an important role in free-electron light sources and particle accelerators. Orbital angular momentum (OAM) is a new degree of freedom that can significantly promote the capacity of information carried by an electro-magnetic beam. In this paper, we propose an integrable method for generating vortex Smith–Purcell radiation (VSPR), namely, SPR carrying OAM, by having free-electron bunches pass on planar holographic gratings. VSPRs generated by different electron energies, with different topological charges of the OAM, radiation angles, and frequencies are demonstrated numerically. It is also found that, for high-order radiation, the topological charge of the OAM wave will be multiplied by the radiation order. This work introduces a new way to generate SPR with OAM and provides a method to achieve an integratable and tunable free-electron OAM wave source at different frequency regions.
The effect of lightning impulse characteristics and line arrester to the lightning protection performance on 150 kV overhead lines: ATP-EMTP computational approach
Authors: Murdiya Fri , Febrizal Febrizal , Stevany Cecilia , Sano Havel Alindo , Firdaus Firdaus
Published: June 2020

This simulation study presents the effect of lightning strikes on the performance of arresters at 150 kV overhead lines. Lightning strikes have several parameters that affect the performance of line arresters (LA), namely lightning charge, and impulse energy. The simulation was attempted by injection of a direct strike to the ground wire with the peak voltage of 10 MV. The peak voltage was varied in terms of wavefront time (Tf) and the duration of lightning impulses (tau). In order to calculate current, charge and impulse energy of LA from various variations of Tf and tau, the trapezoidal numerical integration method is used. The current and impulse energy arising due to direct strikes and various variations of Tf and tau will be compared for each phase so that the influence of Tf and tau can be obtained from the performance of the LA and the current charge and impulse energy values are still within the limits of the IEEE C62.11 standard. The installation of LA and the position of arresters affected the peak voltage of lightning on the phase line when lightning struck it. The line arresters provide a drop in the peak voltage of lightning in phase lines. By installing line arresters in each tower, it will reduce the peak voltage of lightning on the phase line more significantly than the standalone line arrester. It is shown that the line arresters have to install at least six towers to reduce the peak voltage in the phase lines.
Effect of isolates of entomopathogenic fungi in the coconut eye borer
Authors: Alencar Lima Hully Monaísy , De Melo Rodrigues Vanessa , Rodrigues Sabino Anderson , Cardoso dos Santos Maria Quiteria , Soares de Lima Ivanildo , Guimarães Duarte Adriana , Santo Negrisoli Junior Aldomario , Manoel da Silva João
Published: June 2020

The objective of this study was to evaluate the effect of entomopathogenic fungi on adults of Rhynchophorus palmarum (Coleoptera: Curculionidae). The experimental design was completely randomized in a factorial design (5x3) + control, composed of five treatments (isolated IBCB 66, CPATC 032, CPATC 057 and T9, and the commercial product Boveril®) and three concentrations of each fungus (107, 108 and 109 conidia.mL-1). The data of confirmed mortality were submitted to analysis of variance (ANOVA) using the Proc ANOVA of SAS, and the means compared by Tukey test at 5% probability. To determine percentage survival, confirmed mortality data were subjected to Log-Rank test using the Kaplan-Meyer method. Subsequently the values of LC50 and LT50 were estimated submitting mortality confirmed the Probit analysis. For the concentration 108 conidia.mL-1, the isolates CPATC 032 and CPATC 057 caused confirmed mortality of 52 and 44% of the adults of R. palmarum, respectively. At the concentration 109 conidia.mL-1, the isolates CPATC 032 and CPATC 057 caused mortality of 64 and 52% of the insects, respectively. For the CPATC 032 isolate, in the three concentrations tested, the insects had an average survival of 11 to 12 days. The TL50 of isolate CPATC 032 at concentrations 108 and 109 conidia.mL-1 was approximately 17 days. All isolates tested and the Boveril® product are pathogenic to R. palmarum.
Droplet Digital PCR Detects Low-Density Infection in a Significant Proportion of Helicobacter Pylori-Negative Gastric Biopsies of Dyspeptic Patients
Authors: Ramírez-Lázaro María José , Lario Sergio , Quílez María Elisa , Montserrat Antònia , Bella Maria Rosa , Junquera Félix , García-Martínez Lorena , Casalots Àlex , Parra Tamara , Calvet Xavier
Published: June 2020

INTRODUCTION:

Helicobacter pylori-infected individuals may present low-density infection, undetectable by conventional tests such as histology, rapid urease test, or urea breath test. Droplet digital polymerase chain reaction (ddPCR) is more sensitive than other polymerase chain reaction methods. We aimed to evaluate the ability of ddPCR to detect H. pylori infection in patients diagnosed as negative by conventional tests.

METHODS:

Dyspeptic patients (n = 236) were tested for H. pylori by histology, urea breath test, and rapid urease test. Patients were classified as having 3 positive (n = 25, control group), 2 positive (n = 12), one positive (n = 41), or zero positive (n = 158) diagnostic tests. DNA was extracted from gastric biopsies. Triplicate ddPCR testing for each of the 16S rDNA, ureA, and vacA(s) genes was performed using a QX200 ddPCR system (Bio-Rad). A gene was considered positive when detected by at least 2 of 3 repeated ddPCRs. H. pylori positivity was defined as having 2 or more positive genes.

RESULTS:

All the biopsies of the control patients were positive for all 3 16S rDNA, ureA, and vacA(s) genes. H. pylori infection was detected in 57 (36%), 22 (54%), and 9 (75%) patients with zero, 1, and 2 positive diagnostic tests, respectively. The density of infection was 5, 121, 599, and 3,133 copies of H. pylori genome equivalents for patients with zero, 1, and 2 of 3 positive test results and for the control group, respectively.

DISCUSSION:

ddPCR detected low-density “occult” H. pylori infection in a significant proportion (36%) of patients diagnosed as negative by conventional methods. The number of conventional positive tests was related to the density of infection.
Física Filosófica
Authors: Menezes Luiz Maurício Bentim da Rocha
Published: June 2020

Expomos o trabalho em andamento no projeto de extensão “Física Filosófica”, que tem o intuito de desenvolver a formação de alunos do Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro, assim como o público externo que tenha interesse no âmbito da interdisciplinaridade e em diferentes assuntos. A parte que apresentamos aqui foi desenvolvida nos anos de 2018 e 2019 e colocamos os resultados neste trabalho. A metodologia que utilizamos para o desenvolvimento deste projeto consiste na apresentação de uma série de palestras como temáticas diferentes que relacionem as disciplinas de humanidades, exatas e biológicas, levando ao aperfeiçoamento dos participantes nessas áreas.
Marxian Socio-Political Economic Theory: Two Schools of Thought: Part-II
Authors: Sehgal M. L.
Published: June 2020

Marx, an idealist, who believed ‘Capitalism to be an Evil’ and ‘Socialism a Harbinger of Prosperity’, propagated his economic ideas whose basic Pillar was the Labor Theory of Value (LTV) which included Surplus –Value (SV), Falling Tendency of  Rate of Profit, Price of a Commodity, Supply and Demand’ Relation, Inflation and Interest Rates. His Socio-political thought included the state would be the Monopolist without anybody owning any private property with religion being the opiate of the masses. He preached class struggle but ignored the middle class. He wanted to do away the State even with the violent Revolution. All this brought him in conflict both with his contemporary economists as well as with the future generation of economists. The 150 old Socio-political Economic Theory of Marx, though a noble idea, could not stand the test of the times and started falling under its weight. The duality in the minds of the people about its utility and applicability is best described by the celebrated Physicist- Einstein’s viewpoint which speaks volumes of the aura of the man   named Karl Heinrich Marx:   

“I am convinced (that) there is only one way to eliminate these grave evils, namely through the establishment of a socialist economy, accompanied by an educational system which would be oriented toward social goals. In such an economy, the means of production are owned by society itself and are utilized in a planned fashion. A ‘planned economy’, which adjusts production to the needs of the community, would distribute the work to be done among all those able to work and would guarantee a livelihood to every man, woman, and child”

 But look at the lurking fear in the mind of the genius about the ‘planned economy’ as:

“Nevertheless, it is necessary to remember that a  planned economy is not yet socialism. A planned economy as such may be accompanied by the ‘complete enslavement of the individual’. The achievement of socialism requires the solution of some extremely difficult socio-political problems: how is it possible, because of the far-reaching ‘centralization of political and economic power’, to ‘prevent bureaucracy from becoming all-powerful and overweening’? How can the ‘rights of the individual be protected’ and therewith a ‘democratic counterweight to the power of bureaucracy be assured’?”
Development of assisted reproductive technology services in Thailand between 2008 and 2014 before the new law: Results generated from the National ART Registry, Royal Thai College of Obstetricians and Gynecologists
Authors: Chiamchanya Charoenchai , Pruksananonda Kamthorn
Published: June 2020

Background

While the assisted reproductive technology (ART) relieves the burden of infertility in many couples, it presents significant public health challenges due to the substantial risk for multiple birth delivery and preterm birth, which are associated with poor maternal and fetal health outcomes. For this reason, it is important to monitor the development and effectiveness of ART services in Thailand.

Objective

To analyze the trends of ART services in Thailand between 2008 and 2014.

Methods

ART clinics in Thailand are required to submit data to the Royal Thai College of Obstetricians and Gynecologists via the National Reporting System. The data from 2008 to 2014 were collected and analyzed.

Results

The number of ART centers was increased from 35 to 47. The total fresh ART cycles were also increased from 3,723 to 6,516. The percentage values of intracytoplasmic sperm injection (ICSI), in vitro fertilization, gamete intrafallopian transfer, and zygote intrafallopian transfer cycles were changed from 77.87 to 95.59, 21.43 to 4.31, 0.21 to 0.09, and 0.45 to 0.05, respectively. The clinical pregnancy rates were 28.79–33.19, 22.84–51.34, 14.29–42.86, and 0.00–26.67, respectively. The clinical pregnancy rates in fresh vs. frozen-thawed cycles were 31.01–36.33 vs. 31.54–37.34 (P < 0.05). The clinical pregnancy rates in female age <35 vs. 35–39 vs. ≥40 years were 36.97–40.70 vs. 32.74–33.42 vs. 21.08–31.34, respectively (P < 0.001), and the percentage values of multifetal pregnancy rate were 18.75 vs. 13.30 and 13.69, respectively (P < 0.001). There were increasing preimplantation genetic screening (PGS) cycles, with the percentage of the clinical pregnancy rate (25.90–42.63, P < 0.05). The clinical pregnancy rates in medium-sized ART centers (100–300 cycles per year) vs. in small and large centers were 30.79–41.14 vs. 28.01–34.04 and 8.70–40.35, respectively (P < 0.001). Trends of increasing percentage of ART birth rate to total birth rate ratio were 0.24–0.34 (P < 0.05).

Conclusions

There were higher clinical pregnancy rates in frozen-thawed cycles. Higher multifetal pregnancy rate and clinical pregnancy rate were also found in younger females. There were increasing uses of ICSI and PGS. A trend toward increasing ART birth to total birth ratio was observed.
Das Werk als Nutzungsobjekt in den Schranken für Lehre, Forschung und Bibliotheken (§§ 60a, 60c, 60e UrhG)
Authors: Gräbitz Anja
Published: June 2020

Dieser Artikel behandelt die neu geschaffenen Schranken für Lehre, Forschung und Bibliotheken (§§ 60a, 60c, 60e UrhG), welche die Nutzung eines urheberrechtlich geschützten Werks in unterschiedlichem Umfang erlauben. Für die einzelnen Schrankenregelungen werden jeweils deren Tatbestände, Erweiterungen und gegebenenfalls die entsprechenden Bereichsausnahmen ausführlich dargestellt. Dabei wird an den entsprechenden Stellen auf die praktischen Probleme bei der Anwendung der Schrankenbestimmungen näher eingegangen.
Properties of Laser Additive Deposited Metallic Powder of Inconel 625
Authors: Danielewski Hubert , Antoszewski Bogdan
Published: June 2020

Paper presents results of laser additive manufacturing. Deposition of nickel based super alloy Inconel 625 was performed. Laser metal deposition is advanced manufacturing process dedicated for prototyping and low scale series production. Inconel 625 is nickel based super alloy, with high heat resistance properties. Therefore due material properties and chemical composition is characterized as a difficult to machining [1, 2]. Additive manufacturing process using focused photons beam for selective deposition of metallic powder in laser engineered net shaping (LENS) method can be used as alternative technology. High energy density of controllable laser beam combining with coaxial delivery system allow to precise deposited metallic powder. Manufacturing process are based on selective melting of additional material using laser radiation and crystallization process. An additional material in form of filler wire as well as metallic powder can be used. Advantages of using metallic powder are higher level of process control, nevertheless adequate selection of process parameters are required. High energy density of laser beam and rapid crystallization process affect on metallographic structure of deposited material. Thermal energy absorbed in material affect on phase transformation.Molten powder mixing with base material changing metallographic structure. Chemical composition of obtained overlay weld are combination of base and additive material. Therefore to achieve stable crystallization process chemical composition of additive material wassimilar to base material. Additional alloying elements could affect on mechanical properties. Deposition process using TruLaserCell 1005 laser machine was performed. To determine properties of manufactured material metallographic analysis and destructive tests were performed.
Insights on intermolecular FMN-heme domain interaction and the role of linker length in cytochrome P450cin fusion proteins
Authors: Belsare Ketaki D. , Ruff Anna Joëlle , Martinez Ronny , Schwaneberg Ulrich
Published: June 2020

Cytochrome P450s are an important group of enzymes catalyzing hydroxylation, and epoxidations reactions. In this work we describe the characterization of the CinA–CinC fusion enzyme system of a previously reported P450 using genetically fused heme (CinA) and FMN (CinC) enzyme domains fromCitrobacter braaki. We observed that mixing individually inactivated heme (-) with FMN (-) domain in the CinA-10aa linker - CinC fusion constructs results in recovered activity and the formation of (2S)-2β-hydroxy,1,8-cineole (174 µM), a similar amount when compared to the fully functional fusion protein (176 µM). We also studied the effect of the fusion linker length in the activity complementation assay. Our results suggests an intermolecular interaction between heme and FMN parts from different CinA–CinC fusion protein similar to proposed mechanisms for P450 BM3 on the other hand, linker length plays a crucial influence on the activity of the fusion constructs. However, complementation assays show that inactive constructs with shorter linker lengths have functional subunits, and that the lack of activity might be due to incorrect interaction between fused enzymes.
Predictors of puberty-related health behaviors among girl adolescents in Chahar Mahal Bakhtiari
Authors: Sakineh Rakhshanderou , Mohtasham Ghaffari , Ali Ramezankhani , Leila Gholami Dastenaee
Published: June 2020

Introduction

It is important to recognize the various dimensions of puberty and planning for the education of adolescents and their parents who are on the verge of this course. The present study aimed to investigate predictors of puberty health behavior in adolescent girls.

Materials & Methods

This correlational study was carried out on 280 female students from the eighth and ninth grades of high school who were selected by multi-stage random sampling method. The data gathering tool was a researcher-made questionnaire whose validity was assessed using the face and content validity method (Panel view of the experts) and its reliability was tested by test-retest and internal consistency. The collected data were analyzed by SPSS 16 using descriptive statistics, Pearson correlation coefficient and multiple regression at a significant level less than 0.05.

Results

Regression results with stepwise analysis showed that demographic variables other than the age of students (p = 0.031) had no effect on the adoption of puberty health behaviors, but their students’ knowledge and their attitude were good predictors of behaviors Health is puberty. Among the underlying and psychological variables, was the strongest prediction (Beta = 0.48). Attitude with knowledge and age was 34.9% of variance for explaining puberty health behaviors in adolescents.

Conclusion

Considering the power of predictors such as knowledge and attitude, it is possible to develop puberty health behaviors by increasing knowledge of students and providing correct and appropriate information to them and improving attitudes.
The necessity of education about reproductive health of female adolescents to mothers in Iran: a qualitative study
Authors: Salehin Shahrbanoo , Simbar Masoumeh , Keshavarz Zohre , Nasiri Malihe
Published: June 2020

Objectives

Parents are challenged to provide the required information about reproductive issues for their adolescents. The study aims to explain women’s perception of the necessity of education about adolescent girls, reproductive health to mothers.

Methods

This research is a qualitative content analysis. Sampling was performed using purposeful sampling to saturation of data. The study sample included 26 mothers and 14 key informants. To collect data, semi-structured interviewing was used. Data trustworthiness was verified based on Lincoln and Guba’s criteria and the data was analyzed using conventional content analysis with MAXQDA10 software.

Results

Four themes and 13 main categories each with some subcategories were extracted in this research. The themes and categories included: “risky social-environmental factors (existence of inappropriate educational resources, a challenge between tradition and modernity in the society, social harms, and educational barriers)”, weakness in awareness, attitude, and family relationships (mother's limited awareness, mother's negative attitude, improper interaction between the parents and the adolescent in the family, and lack of discussion about sexual and reproductive matters in the family), problems associated with sexual and reproductive health of adolescent girls (puberty changes, insufficient perception, and understanding of the process of puberty and harms arising from early education), and high-risk behaviors of adolescents and their consequences (the adolescent's maladaptive behaviors and their outcomes).

Conclusion

The results of this research necessitate education of adolescent girls' reproductive health to mothers.
Effect of a school-based intervention in eating habits among school children: quasi experimental study, Tunisia
Authors: Ben Cheikh Asma , Maatoug Jihène , Ghammam Rim , Chouikha Firas , Mallat Amal , Ghannem Hassen
Published: June 2020

Objective

The present study aimed to assess whether six months intervention program with parents' implication in primary schools is able to decrease morning snack consumption among children aged 6–12 years.

Methods

We carried out a quasi-experimental study with two groups of schoolchildren in the region of Sousse (Tunisia) from 2015 to 2016. One primary school in each group was selected. In each school, we randomly selected a sample size of schoolchildren and their parents. The intervention was based on healthy eating habits promotion.

Results

The consumption of morning snacks the day before data collection, reported by children, decreased significantly in post-intervention in both intervention and control groups.The decrease of consumption of morning snacks was significantly higher in intervention group (p=0.009). According to parents, the proportion of children who had the habit of eating morning snack decreased significantly from pre to post-intervention in intervention group (p<0.001).

Conclusion

A healthy environment should be created through effective school policies to prevent obesity.
Comparing self-perceived global self-esteem and physical self-esteem among children and adolescents in Southeastern Sweden, investigated in 2000 and 2017
Authors: Raustorp Anders , Fröberg Andreas
Published: June 2020

Objectives

To compare self-perceived global self-esteem (GSE) and physical self-esteem (PSE) among children and adolescents aged 11 and 14 years in Southeastern Sweden, investigated in 2000 and 2017.

Methods

The present study consists of two independent cross-sectional study-cohorts from Southeastern Sweden, investigated in 2000 and 2017. The same protocol, procedures, and instruments were used in 2000 and 2017. In October 2000, data for self-perceived GSE and PSE, and anthropometry were collected from 11-years old children (Grade 5) (n=74) and 14-years old adolescents (Grade 8) (n=84). In October 2017, children (n=186) and adolescents (n=140) from the same grade-levels, schools and classrooms provided data for the same variables as in 2000. GSE and PSE were assessed with the Children and Youth Physical Self-Perception Profile (CY-PSPP).

Results

Self-perceived GSE was higher in 2017 as compared to 2000 among both 11-years old boys (p<0.001) and girls (p<0.001) and 14-years old boys (p=0.008) and girls (p<0.001). Similarly, self-perceived PSE was higher in 2017 as compared to 2000 among both 11-years old boys (p<0.001) and girls (p=0.023) and 14-years old boys (p=0.025) and girls (p=0.002).

Conclusions

Self-perceived GSE and PSE among children and adolescents aged 11 and 14 years in Southeastern Sweden were higher in 2017 as compared to 2000. These results are not in agreement with the increased psychological ill-health as being reported among children and adolescents during the last decade in Sweden.
Stressful life events and depressive symptoms among adolescents in Malaysia: the mediating role of maladaptive cognitive schema
Authors: Wong Yi Shan , Zulkefly Nor Sheereen , Tan Kit-Aun
Published: June 2020

Objectives

The present study aimed to examine the mediational role of maladaptive cognitive schema in the association between stressful life events, which are operationalised as major (i. e. negative life events) and minor (i. e. daily hassles) life stressors, and depressive symptoms among adolescents.

Methods

A cross-sectional correlational study was conducted to recruit participants across four selected states of Kedah, Kelantan, Melaka and Selangor in Peninsular Malaysia. This study involved a total of 1,032 adolescents from 25 government secondary schools, identified using probability proportional to size cluster sampling technique. Data were collected through a self-report questionnaire.

Results

Using structural equation modelling analyses, findings revealed a full mediation effect of maladaptive cognitive schema between negative life events and depressive symptoms, and a partial mediation effect between daily hassles and depressive symptoms.

Conclusions

This study provided valuable insights about the significance of maladaptive cognitive schema as a mediator in the stress-depression association and advanced the understanding of mechanism underlying development of depressive symptoms among adolescents in Malaysia. Findings also benefit the clinical practice in the development of targeted depression prevention and intervention programs.
Predictors of health practices among a group of Iranian adolescent pregnant women: a cross-sectional study
Authors: Hadian Tahereh , Sanaz Moosavi , Shahla Meedya , Sakineh Mohammad-Alizadeh-Charandabi , Eesa Mohammadi , Mojgan Mirghafourvand
Published: June 2020

Introduction

The health practices of pregnant women can affect maternal and fetal health, and pregnancy outcomes. Understanding the predictors of health practices in adolescent pregnant women can help improve these practices. The present study aimed to determine the predictors of health practices in adolescent pregnant women.

Materials and methods

This cross-sectional study was conducted on 316 adolescent pregnant women in health centers of Tehran (capital of Iran). The participants were selected through the census method. The data were collected using the socio-demographic, obstetrics and health practices questionnaires and analyzed using Pearson correlation coefficient, independent t-test, one-way ANOVA, and general linear model.

Results

The mean score of health practice was 135.29 ± 9.08, ranging from 34 to 170. The highest and the lowest mean score pertained to the avoidance of harmful drugs and opiates subscale (29.79) and the balance of rest and exercise subscale (13.15), respectively. The general linear model showed that a lower level of education, a history of abortion, lack of involvement in pre-pregnancy counseling, and delayed attendance for prenatal care, reduced the health practice score. However, high level of emotional support from the spouse increased the health practice score.

Conclusions

The findings highlighted the factors effective on health practices including involvement in pre-pregnancy counseling, early prenatal care and emotional support for the adolescent pregnant woman.
Structural dependence of transmission characteristics for photonic crystal fiber with circularly distributed air-holes
Authors: Mondal Kajal
Published: June 2020

In this study, design and transmission characteristics of a special type of photonic crystal fiber (PCF) geometry namely, circular-lattice photonic crystal fiber (C-PCF) structure are presented. The cladding of the structure consists by a cylindrically symmetrical distribution of air-holes in the silica background and the core is created by omitting one air-hole at the center. The structure provides high degree of flexibility in the fiber design and hence tailorable modal properties. Structural dependence of transmission characteristics of the geometry is numerically investigated by using finite difference mode convergence algorithm. The wavelength responses of fiber parameters, such as effective refractive index, chromatic dispersion, mode-effective area, and nonlinear coefficient of the structure are systematically investigated. Besides, effective V-parameter and single-mode operation of the fiber are also evaluated and discussed. The simulation results show the possibility of large negative dispersion and dispersion flattened nature of the geometry.
Die Stellung von Religion im politischen Denken des Aristoteles
Authors: Piepenbrink Karen
Published: June 2020

Der vorliegende Aufsatz geht der Frage nach, aus welchen Gründen religiöse Aspekte im politischen Denken des Aristoteles – verglichen mit dem anderer zeitgenössischer Philosophen wie auch mit der politischen Praxis seiner Zeit – nicht prominent vertreten sind. Dabei beleuchtet er insbesondere den Umstand, dass Aristoteles der sozialintegrativen wie auch der identitätsstiftenden Funktion des Kultes im Hinblick auf die Polisgemeinschaft keine zentrale Bedeutung beimisst. Der Beitrag deutet dies auf dem Hintergrund der spezifischen Fragestellungen wie auch der politischen Prämissen des Philosophen, darunter seine Fokussierung der Stasisproblematik und der Arm-Reich-Dichotomie. Angesichts dessen gelangt Aristoteles – abweichend von vielen seiner Zeitgenossen – zu der Einschätzung, dass sich soziale Kohäsion vorrangig durch das Austarieren konkurrierender Ansprüche fördern lässt, weniger durch Rekurse auf gemeinschaftsstiftende religiöse Vorstellungen oder kollektive Kultpraktiken.
Parents’ Awareness and Involvement in Dealing with Cyberbullying
Authors: Tal Tamir , Prebor Gila
Published: June 2020

The purpose of this study is to examine the extent to which parents of children aged 10–12 are aware that cyberbullying is a widespread phenomenon, how they deal with acts of cyberbullying performed by or toward their child, whether they take active steps toward preventing cyberbullying by and/or toward their child, and to what extent they are willing to invade their child’s privacy to this end.

The study employs a quantitative methodology. One hundred and thirty-three parents were selected from a convenient sample of parents of children in grades 4–6 in a number of public elementary schools. It was found that most parents have heard about cyberbullying, mainly through the various media and not as a result of communicating with their child. Although parents understand that there are psychological effects on victims and criminal consequences for aggressors, most do not deepen their knowledge on the issue. Most parents assume that they can control the phenomenon and distance their child from it and that their child was not involved in cyberbullying. These findings contrast with findings from other studies indicating that most children were involved in cyberbullying to a certain degree. Identifying the reason behind this gap and ways to decrease it requires further investigation.

Many studies have focused on cyberbullying among adolescents (ages 13–17) and less so on children aged 10–12. In this study, we chose to focus on children aged 10–12 because evidence indicates that children in this age group are more exposed to the phenomenon.
Facile synthesis of sulfur@titanium carbide Mxene as high performance cathode for lithium-sulfur batteries
Authors: Zhang Fan , Zhou Yunlei , Zhang Yi , Li Dongchan , Huang Zhichao
Published: June 2020

The design of sulfur hosts with polar, sulfurphilic, and conductive network is critical to lithium-sulfur (Li-S) batteries whose potential applications are greatly limited by the lithium polysulfide shuttle effect. Mxenes, possessing layered-stacked structures and high electrical conductivities, have a great potential in sulfur hosts. Herein, sulfur nanoparticles uniformly decorated on titanium carbide Mxene (S@Ti3C2Tx Mxene) are synthesized via a hydrothermal method and then utilized as a cathode for lithium-sulfur batteries. This unique architecture could accommodate sulfur nanoparticles expansion during cycling, suppress the shuttling of lithium polysulfide, and enhance electronical conductivity. Consequently, the S@Mxene with a high areal sulfur loading (∼4.0 mg cm−2) exhibits a high capacity (1477.2 mAh g−1) and a low capacity loss per cycle of 0.18% after 100 cycles at 0.2 C. This work may shed lights on the development of high performance sulfur-based cathode materials for Li-S batteries.
Metal-insulator-metal nanoresonators – strongly confined modes for high surface sensitivity
Authors: Duffett George , Wirth Ralph , Rayer Mathieu , Martins Emiliano R. , Krauss Thomas F.
Published: June 2020

Photonic and plasmonic refractive index sensors are able to detect increasingly smaller refractive index changes and concentrations of clinically relevant substances. They typically exploit optical resonances and aim to maximise the field overlap with the analyte in order to achieve high sensitivity. Correspondingly, they operate on the basis of maximizing the bulk sensitivity, which favours spatially extended modes. We note that this strategy, counter-intuitively, is not necessarily suitable for detecting biomolecules and one should focus on the surface sensitivity instead. Here, we show that by confining light tightly in metal-insulator-metal (MIM) nanoresonators, the surface sensitivity is significantly increased despite a clear decrease in bulk sensitivity. In particular, we experimentally show the operation of third order MIM resonators which support both extended surface plasmon polariton (SPP) modes and localized MIM modes. We are able to demonstrate that the MIM mode has a sensitivity of 55 nm/RIU to a 10 nm layer, which is approximately twice as high as that of the SPP mode. Overall, our work emphasizes the importance of the surface sensitivity over the more commonly used bulk sensitivity and it shows a novel approach for improving it. These insights are highly relevant for the design of next generation optical biosensors.
Crystal structure of [(bis(1,10-phenanthroline-κ2
N,N′)-(2-carboxy-4-(3-carboxy-5-carboxylatophenoxy)benzoato-κ2O:O′))nickel(II) monohydrate, (1,10-phenanthroline-κ2
N:N′)-(μ2-(5-(3′,4′-dicarboxylphenoxy)-isophthalate-κ2O:O′))nickel(II)], C40H24N4O9Ni ⋅ H2O
Authors: Yao Li-Ping
Published: June 2020

C40H26N4O10Ni, triclinic, P1̄ (no. 2), a = 11.5851(8) Å, b = 11.5875(7) Å, c = 13.3921(8) Å, α = 81.440(5)°, β = 77.913(6)°, γ = 76.014(6)°, V = 1696.65(18) Å3, Z = 2, R
gt(F) = 0.0516, wR
ref(F
2) = 0.1203, T = 293(2) K.
The Discarded Mind: From Divine Ideas to Secular Concepts
Authors: Orr James
Published: June 2020

This article proposes an overdue corrective to declinist genealogies of modernity that trace a trajectory from the participatory ontology of late-antique and high-scholastic metaphysics – in which created reality is taken to exemplify patterns in God’s creative blueprint – to a nominalist ontology of discrete, singular particulars whose unity and intelligibility is grounded only in the linguistic capacities of the human subject. It does so by advancing two connected historical claims. First, the shift should be understood less in terms of the substitution of universals for vocal signifiers, as historical accounts of the rise of nominalism have tended to argue, but rather in terms of the slow substitution of divine ideas for human concepts. Second, from the earliest origins of the split between continental and analytic philosophy, the shift from divine intellectualism to secular conceptualism generated sceptical threats both for the phenomenological tradition – crystallized most dramatically in the dilemma of ‘correlationism’ that variously occupies Husserl, Merleau-Ponty, and Quentin Meillassoux – but equally acutely for analytic metaphysics, from Frege’s concepts and Russell’s universals to Michael Dummett’s semantic verificationism. The article concludes that for all the differences between these stances, they are forms of ersatz participatory realism that each endorse an intellectualist account of reality free of the theological commitments that once underpinned it, even though this came at the cost of a wholesale rejection of realism.
Adaptive magnetic suspension anti-rolling device based on frequency modulation
Authors: Gao Sumei , Xu Longxiang , Jin Chaowu , Chen Qianwei
Published: June 2020

Joint stabilizers and new technology stabilizers are hotspots of ship stabilizing technology research at the present stage. This study proposes a magnetic suspension stabilizing method; expounds the working principle of magnetic suspension stabilization, respectively; establishes the mathematical model of the magnetic suspension stator and the stabilization mass block and the mathematical model of magnetic stabilizer and ship; and stimulates the displacement, velocity, and acceleration. On the basis of the simulation, a set of magnetic suspension stabilizers have been designed; the stability of suspension has been tested; and, respectively, the acceleration value of stator and stabilization mass block has been measured by loading 0–500 Hz sine voltage excitation signal on electromagnetic coil; thus, the feasibility of the magnetic suspension stabilizer has been verified.
Chemogenetic Suppression of GnRH Neurons during Pubertal Development Can Alter Adult GnRH Neuron Firing Rate and Reproductive Parameters in Female Mice
Authors: Dulka Eden A. , DeFazio R. Anthony , Moenter Suzanne M.
Published: June 2020

Gonadotropin-releasing hormone (GnRH) neurons control anterior pituitary, and thereby gonadal, function. GnRH neurons are active before outward indicators of puberty appear. Prenatal androgen (PNA) exposure mimics reproductive dysfunction of the common fertility disorder polycystic ovary syndrome (PCOS) and reduces prepubertal GnRH neuron activity. Early neuron activity can play a critical role in establishing circuitry and adult function. We tested the hypothesis that changing prepubertal GnRH neuron activity programs adult GnRH neuron activity and reproduction independent of androgen exposure in female mice. Activating (3Dq) or inhibitory (4Di) designer receptors exclusively activated by designer drugs (DREADDs) were targeted to GnRH neurons using Cre-lox technology. In control studies, the DREADD ligand clozapine n-oxide (CNO) produced the expected changes in GnRH neuron activityin vitroand luteinizing hormone (LH) releasein vivo. CNO was administered to control or PNA mice between two and three weeks of age, when GnRH neuron firing rate is reduced in PNA mice. In controls, reducing prepubertal GnRH neuron activity with 4Di increased adult GnRH neuron firing rate and days in diestrus but did not change puberty onset or GABA transmission to these cells. In contrast, activating GnRH neurons had no effect on reproductive parameters or firing rate and did not rescue reproductive phenotypes in PNA mice. These studies support the hypothesis that prepubertal neuronal activity sculpts elements of the adult reproductive neuroendocrine axis and cyclicity but indicate that other PNA-induced programming actions are required for full reproductive phenotypes and/or that compensatory mechanisms overcome activity-mediated changes to mitigate reproductive changes in adults.
Defining Left Bundle Branch Block Patterns in Cardiac Resynchronisation Therapy: A Return to His Bundle Recordings
Authors: Tung Roderick , Upadhyay Gaurav A
Published: June 2020

Left bundle branch block (LBBB) is associated with improved outcome after cardiac resynchronisation therapy (CRT). One historical presumption of LBBB has been that the underlying pathophysiology involved diffuse disease throughout the distal conduction system. The ability to normalize wide QRS patterns with His bundle pacing (HBP) has called this notion into question. The determination of LBBB pattern is conventionally made by assessment of surface 12-lead ECGs and can include patients with and without conduction block, as assessed by invasive electrophysiology study (EPS). During a novel extension of the classical EPS to involve left-sided recordings, we found that conduction block associated with the LBBB pattern is most often proximal, usually within the left-sided His fibres, and these patients are the most likely to demonstrate QRS correction with HBP for resynchronisation. Patients with intact Purkinje activation and intraventricular conduction delay are less likely to benefit from HBP. Future EPS are required to determine the impact of newer approaches to conduction system pacing, including intraseptal or left ventricular septal pacing. Left-sided EPS has the potential to refine patient selection in CRT trials and may be used to physiologically phenotype distinct conduction patterns beyond LBBB pattern.
Forest landscape nomination in the Komi-Permyatsky language
Authors: Rakin Anatoly N.
Published: June 2020

Introduction. The article discusses the nomination of the forest landscape in the Komi-Permyatsky language, a separate microsystem, as a part of the terrestrial landscape vocabulary. It has its own structural organization, certain composition of nomination objects and a specific set of lexical means for their nomination. The purpose of the article is to establish systemic features typical for this category of nomination only, distinguish it from other components of land vocabulary, determine the composition of the vocabulary, systematize this microsystem and identify the sources and main stages of its formation and development.
Materials and methods. The main source of the material was the vocabulary of the Komi-Permyatsky language contained in lexicographic publications. Additional data was obtained as a result of a survey of native speakers of the Komi-Permyatsky language using a specially developed questionnaire. It also used comparative, historical, synchronous-comparative, descriptive and statistical research methods.
Results and discussion. As a result of the linguistic analysis, a system for the forest landscape nomination in the Komi-Permyatsky language is presented. It is established that unambiguous and ambiguous names are distinguished at the semantic level among nominative units, which, as a rule, have a direct meaning. Based on the subject-conceptual content, the entire set of nominations, in accordance with denotative signs, is classified into six main subgroups. The primordial fund of the microsystem is characterized by the presence of all four components of ancient vocabulary: Pre-Perm, Common Perm, Pracomi and the proper Komi-Permyatsky. A part of the native vocabulary that arose during the period of the independent existence of the Komi-Permyatsky language and which does not have genetic correlations with other related languages is analyzed taking into account the specific features of structural and word-building system. As a classification criterion for monomial tokens, it employs the derivative or non-derivative criteria of the words. For compound names it employs the belongings of the components to the corresponding parts of speech. A foreign vocabulary of Komi-Permyatsky words used for the forest landscape consists of one type of borrowing.
Conclusion. The vocabulary of the forest landscape of the Komi-Permyatsky language has ancient origins; its formation and development proceeded over many millennia on the basis of internal resources. The number of borrowings increased in the late periods of the Komi-Permyatsky language as a result of the penetration of the corresponding number of words from the Russian literary language and its northern dialects.
Probability Transform Based on the Ordered Weighted Averaging and Entropy Difference
Authors: Pan Lipeng , Deng Yong
Published: June 2020

Dempster-Shafer evidence theory can handle imprecise and unknown information, which has attracted many people. In most cases, the mass function can be translated into the probability, which is useful to expand the applications of the D-S evidence theory. However, how to reasonably transfer the mass function to the probability distribution is still an open issue. Hence, the paper proposed a new probability transform method based on the ordered weighted averaging and entropy difference. The new method calculates weights by ordered weighted averaging, and adds entropy difference as one of the measurement indicators. Then achieved the transformation of the minimum entropy difference by adjusting the parameter r of the weight function. Finally, some numerical examples are given to prove that new method is more reasonable and effective.
Proposed Fuzzy Real-Time HaPticS Protocol Carrying Haptic Data and Multisensory Streams
Authors: Kontogiannis Sotirios , Kokkonis George
Published: June 2020

Sensory and haptic data transfers to critical real-time applications over the Internet require better than best effort transport, strict timely and reliable ordered deliveries. Multi-sensory applications usually include video and audio streams with real-time control and sensory data, which aggravate and compress within real-time flows. Such real-time are vulnerable to synchronization to synchronization problems, if combined with poor Internet links. Apart from the use of differentiated QoS and MPLS services, several haptic transport protocols have been proposed to confront such issues, focusing on minimizing flows rate disruption while maintaining a steady transmission rate at the sender. Nevertheless, these protocols fail to cope with network variations and queuing delays posed by the Internet routers.

This paper proposes a new haptic protocol that tries to alleviate such inadequacies using three different metrics: mean frame delay, jitter and frame loss calculated at the receiver end and propagated to the sender. In order to dynamically adjust flow rate in a fuzzy controlled manners, the proposed protocol includes a fuzzy controller to its protocol structure. The proposed FRTPS protocol (Fuzzy Real-Time haPticS protocol), utilizes crisp inputs into a fuzzification process followed by fuzzy control rules in order to calculate a crisp level output service class, denoted as Service Rate Level (SRL). The experimental results of FRTPS over RTP show that FRTPS outperforms RTP in cases of congestion incidents, out of order deliveries and goodput.