bluuebunny/crossref_metadata_2025 huggingface dataset:
Sophie Olúwọlé's Major Contributions to African Philosophy
Authors: Presbey Gail
Published: May 2020

This article provides an overview of the contributions to philosophy of Nigerian philosopher Sophie Bọ´sẹ`dé Olúwọlé (1935–2018). The first woman to earn a philosophy PhD in Nigeria, Olúwọlé headed the Department of Philosophy at the University of Lagos before retiring to found and run the Centre for African Culture and Development. She devoted her career to studying Yoruba philosophy, translating the ancient Yoruba Ifá canon, which embodies the teachings of Orunmila, a philosopher revered as an Óríṣá in the Ifá pantheon. Seeing his works as examples of secular reasoning and argument, she compared Orunmila's and Socrates' philosophies and methods and explored similarities and differences between African and European philosophies. A champion of African oral traditions, Olúwọlé argued that songs, proverbs, liturgies, and stories are important sources of African responses to perennial philosophical questions as well as to contemporary issues, including feminism. She argued that the complementarity that ran throughout Yoruba philosophy guaranteed women's rights and status, and preserved an important role for women, youths, and foreigners in politics.
Transfer of methicillin-resistant Staphylococcus aureus by fist bump versus handshake
Authors: Pinto-Herrera Natalia C. , Jones Lucas D. , Ha Wilson , Alhmidi Heba , Li Daniel F. , Wilson Brigid M. , Donskey Curtis J.
Published: May 2020

For patients with methicillin-resistant Staphylococcus aureus (MRSA) colonization, a traditional fist-bump greeting did not significantly reduce MRSA transfer in comparison to a handshake. However, transfer was reduced with a modified fist bump that minimized the surface area of contact and when hand hygiene was performed before the handshake.
MISSILE DEFENSES AND STRATEGIC STABILITY IN ASIA: EVIDENCE FROM SIMULATIONS
Authors: Sankaran Jaganath
Published: May 2020

The contention over the quantity and quality of regional missile defenses forward-deployed by the United States in the Asia-Pacific region animates much of the US–China disagreement about strategic stability. The Chinese argue that the deployed assets exceed reasonable defensive requirements and suggest that if these missile-defense deployments continue, they will be forced to increase the size of their nuclear arsenal. In disagreement, the United States claims that regional missile defenses are defensive by design, limited in scope, and necessary to defeat a North Korean missile campaign. In this article, a series of simulation experiments were developed to empirically test these opposing arguments over missile defenses and strategic stability. The simulations indicate that current deployments are necessary for defense and proportional to the threat. The analysis also argues that current deployments do not possess the ability to alter the US–China strategic nuclear balance significantly. The article concludes with a discussion of other subjective aspects of national security that may explain Chinese concerns and explore possible ways to reassure China.
Is There a Distinct Quebec Media Subsystem in Canada? Evidence of Ideological and Political Orientations among Canadian News Media Organizations
Authors: Thibault Simon , Bastien Frédérick , Gosselin Tania , Brin Colette , Scott Colin
Published: May 2020

In their much-quoted typology of Western media systems, Hallin and Mancini (2004) associate Canada's media system with what they call the “Liberal model,” given its strong professionalization and limited politicization. They also hypothesize the existence of a more professional and more politicized media subsystem in Quebec. This article tests their hypothesis with data from a 2018 survey of 209 experts across Canada. The findings do not support the hypothesis of a media subsystem in Quebec. However, they show a diversity of ideological and political orientations among news media organizations, which has important empirical and theoretical implications for the study of political communication in Canada.
MAKING MARIA THERESIA ‘KING’ OF HUNGARY
Authors: VARGA BENEDEK M.
Published: May 2020

This article examines the succession of Maria Theresia as ‘king’ of Hungary in 1741, by questioning the notion of the ‘king's two bodies’, an interpretation that has dominated the scholarship. It argues that Maria Theresia's coming to the throne challenged both conceptions of gender and the understanding of kingship in eighteenth-century Hungary. The female body of the new ruler caused anxieties which were mitigated by the revival of the medievalrex femineustradition as well as ancient legal procedures aiming to stress the integrity of royal power when it was granted to a woman.
Consonant dissimilarity in Biblical Hebrew defective nouns
Authors: Aïm Emmanuel
Published: May 2020

Co-occurrence restrictions on Biblical Hebrew root consonants have received thorough treatment in the specialized literature. However, combinations involving glides on the one hand, and nominal roots on the other, have received very little attention. The aim of this paper is to argue for an incompatibility between medial consonants and final glides in defective nouns: a final w cannot generally follow a homorganic medial root consonant, viz. labial p, b, m and velar k, g, q. The III-w roots are rare: they came about as a result of a well-documented historical process and are found almost only in nominal roots. Previous investigations have overlooked this incompatibility owing to the incomplete scope of the studies.
Information Fusion of GPS, INS and Odometer Sensors for Improving Localization Accuracy of Mobile Robots in Indoor and Outdoor Applications
Authors: Yousuf Sofia , Kadri Muhammad Bilal
Published: May 2020

In mobile robot localization with multiple sensors, myriad problems arise as a result of inadequacies associated with each of the individual sensors. In such cases, methodologies built upon the concept of multisensor fusion are well-known to provide optimal solutions and overcome issues such as sensor nonlinearities and uncertainties. Artificial neural networks and fuzzy logic (FL) approaches can effectively model sensors with unknown nonlinearities and uncertainties. In this article, a robust approach for localization (positioning) of a mobile robot in indoor as well as outdoor environments is proposed. The neural network is utilized as a pseudo-sensor that models the global positioning system (GPS) and is used to predict the robot’s position in case of GPS signal loss in indoor environments. The data from proprioceptive sensors such as inertial sensors and GPS are fused using the Kalman and the complementary filter-based fusion schemes in the outdoor case. To eliminate the position inaccuracies due to wheel slippage, an expert FL system (FLS) is implemented and cascaded with the sensor fusion module. The proposed technique is tested both in simulation and in real scenarios of robot movements. The simulations and results from the experimental platform validate the efficacy of the proposed algorithm.
Depth Estimation for Local Colon Structure in Monocular Capsule Endoscopy Based on Brightness and Camera Motion
Authors: Xu Lei , Li Jing , Hao Yang , Zhang Peisen , Ciuti Gastone , Dario Paolo , Huang Qiang
Published: May 2020

We present a 3D reconstruction method using brightness and camera motion estimation for registering local colon structure in colonoscopy. The proposed method is based on reverse projection from 2D fold contours to 3D space, motion estimation from 3D reconstructed points between neighboring frames, and model registration to reconstruct the fold structure. On the synthetic colon, the average percentages of the reconstructed depth error and circumference error are about 14.2% and 15.2%, respectively. The accuracy is enough for the navigation and control in capsule robot. This work demonstrates that the proposed method is superior to the methods using single-frame-based brightness intensity.
Eye Movements and White Matter are Associated with Emotional Control in Children Treated for Brain Tumors
Authors: Moxon-Emre Iska , Taylor Margot J. , Farb Norman A. S. , Oyefiade Adeoye A. , Taylor Michael D. , Bouffet Eric , Laughlin Suzanne , Skocic Jovanka , de Medeiros Cynthia B. , Mabbott Donald J.
Published: May 2020

Objective:

Children treated for brain tumors often experience social and emotional difficulties, including challenges with emotion regulation; our goal was to investigate the attention-related component processes of emotion regulation, using a novel eye-tracking measure, and to evaluate its relations with emotional functioning and white matter (WM) organization.

Method:

Fifty-four children participated in this study; 36 children treated for posterior fossa tumors, and 18 typically developing children. Participants completed two versions of an emotion regulation eye-tracking task, designed to differentiate between implicit (i.e., automatic) and explicit (i.e., voluntary) subprocesses. The Emotional Control scale from the Behavior Rating Inventory of Executive Function was used to evaluate emotional control in daily life, and WM organization was assessed with diffusion tensor imaging.

Results:

We found that emotional faces captured attention across all groups (F(1,51) = 32.18, p < .001, η2p = .39). However, unlike typically developing children, patients were unable to override the attentional capture of emotional faces when instructed to (emotional face-by-group interaction: F(2,51) = 5.58, p = .006, η2p = .18). Across all children, our eye-tracking measure of emotion regulation was modestly associated with the parent-report emotional control score (r = .29, p = .045), and in patients it was associated with WM microstructure in the body and splenium of the corpus callosum (all t > 3.03, all p < .05).

Conclusions:

Our findings suggest that an attention-related component process of emotion regulation is disrupted in children treated for brain tumors, and that it may relate to their emotional difficulties and WM organization. This work provides a foundation for future theoretical and mechanistic investigations of emotional difficulties in brain tumor survivors.
Secondary Fluorescence of 3D Heterogeneous Materials Using a Hybrid Model
Authors: Yuan Yu , Demers Hendrix , Wang Xianglong , Gauvin Raynald
Published: May 2020

In electron probe microanalysis or scanning electron microscopy, the Monte Carlo method is widely used for modeling electron transport within specimens and calculating X-ray spectra. For an accurate simulation, the calculation of secondary fluorescence (SF) is necessary, especially for samples with complex geometries. In this study, we developed a program, using a hybrid model that combines the Monte Carlo simulation with an analytical model, to perform SF correction for three-dimensional (3D) heterogeneous materials. The Monte Carlo simulation is performed using MC X-ray, a Monte Carlo program, to obtain the 3D primary X-ray distribution, which becomes the input of the analytical model. The voxel-based calculation of MC X-ray enables the model to be applicable to arbitrary samples. We demonstrate the derivation of the analytical model in detail and present the 3D X-ray distributions for both primary and secondary fluorescence to illustrate the capability of our program. Examples for non-diffusion couples and spherical inclusions inside matrices are shown. The results of our program are compared with experimental data from references and with results from other Monte Carlo codes. They are found to be in good agreement.
Involvement of the Salivary Glands in the Suicidal Defensive Behavior of Workers inNeocapritermes opacus(Blattaria, Isoptera, Termitidae)
Authors: Costa-Leonardo Ana Maria , Janei Vanelize , Santos Amanda Marcelino Ribeiro dos , Silva Iago Bueno da
Published: May 2020

Suicidal behavior in termite workers is an extreme defensive strategy, probably a consequence of having a low number of soldiers available in the colony and there being high predation from enemies. We investigated the suicidal mechanism in workers of the Neotropical termiteNeocapritermes opacus, which involves salivary gland autothysis followed by body cuticle rupture and the release of a defensive secretion. Autothysis was triggered by a physical stimulus such as a soldier bite that causes the protrusion of the salivary acini, burst reservoirs, and foregut. Histochemical and ultrastructural analyses showed salivary acini composed of peripheral parietal cells and two types of central cells, types I and II. Type I cells are filled with large electron-lucent secretory vesicles, which reacted positively to bromophenol blue and xylidine-Ponceau tests, indicating the occurrence of proteins. Type II cells are elongated and display smaller apical secretory vesicles. Parietal cells present an intracellular canaliculus with dense microvilli and cytoplasm rich in mitochondria and large electron-dense vesicles, which may participate in the self-destructive mechanism. Worker suicidal behavior was previously reported forN. taracuaandN. braziliensis.N. opacusis a new species in which a salivary weapon has been developed and factors contributing to this altruistic response are discussed.
Seltene Ursache einer arteriellen Hypertonie
Authors: Meier Marc A. , Gaisl Thomas , Schmidt Dörthe
Published: May 2020

Zusammenfassung. Eine 54-jährige Patientin leidet unter einer arteriellen Hypertonie, die sich trotz ausgebauter Triple-Therapie insuffizient einstellen liess. Zusätzlich bestand eine Gewichtszunahme von 10 kg innerhalb eines Jahres und es wurde neu ein Diabetes mellitus Typ 2 diagnostiziert. Das bei Verdacht auf eine sekundäre Hypertonieform durchgeführte Magnetresonanztomogramm des Abdomens visualisierte einen im Durchmesser 6 cm grossen karzinomsuspekten Nebennierentumor. Ein ACTH-unabhängiges Cushing-Syndrom konnte mittels 24-h-Urinsammlung, 1-mg-Dexamethason-Suppressionstest und Mitternachtscortisol diagnostiziert werden. Es wurde die Indikation zur laparoskopischen Tumorexzision gestellt. Pathologisch konnte die Diagnose eines Nebennierenrindenkarzinoms bestätigt werden.
Mononeuritis multiplex als diagnostische Herausforderung
Authors: Gloor Elvira , Henzi Anna , Langenegger Thomas , Bodmer Michael
Published: May 2020

Zusammenfassung. Die eosinophile Granulomatose mit Polyangiitis (EGPA, ehemals Churg-Strauss-Syndrom) ist eine Krankheit mit vielen Gesichtern. Aufgrund der variablen Gefäss- und Organbeteiligung kann sich EPGA klinisch sehr unterschiedlich manifestieren. Wir berichten über einen 60-jährigen Patienten mit bekanntem Asthma bronchiale, Pansinusitis und neu einer ausgeprägten Bluteosinophilie sowie einer akuten, rasch progredienten Mononeuritis multiplex. Die Diagnose konnte schliesslich histologisch gesichert werden. Nach Beginn der Therapie kann der Patient wieder mit Gehilfen selbstständig gehen.
High-throughput density functional perturbation theory and machine learning predictions of infrared, piezoelectric, and dielectric responses
Authors: Choudhary Kamal , Garrity Kevin F. , Sharma Vinit , Biacchi Adam J. , Hight Walker Angela R. , Tavazza Francesca
Published: May 2020

Many technological applications depend on the response of materials to electric fields, but available databases of such responses are limited. Here, we explore the infrared, piezoelectric, and dielectric properties of inorganic materials by combining high-throughput density functional perturbation theory and machine learning approaches. We compute Γ-point phonons, infrared intensities, Born-effective charges, piezoelectric, and dielectric tensors for 5015 non-metallic materials in the JARVIS-DFT database. We find 3230 and 1943 materials with at least one far and mid-infrared mode, respectively. We identify 577 high-piezoelectric materials, using a threshold of 0.5 C/m2. Using a threshold of 20, we find 593 potential high-dielectric materials. Importantly, we analyze the chemistry, symmetry, dimensionality, and geometry of the materials to find features that help explain variations in our datasets. Finally, we develop high-accuracy regression models for the highest infrared frequency and maximum Born-effective charges, and classification models for maximum piezoelectric and average dielectric tensors to accelerate discovery.
Author Correction: Role of HDAC9-FoxO1 Axis in the Transcriptional Program Associated with Hepatic Gluconeogenesis
Authors: Chen Jizheng , Zhang Zhilei , Wang Ning , Guo Min , Chi Xiumei , Pan Yu , Jiang Jing , Niu Junqi , Ksimu Sulaiman , Li John Zhong , Chen Xinwen , Wang Qian
Published: May 2020

An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Aluminium-induced component engineering of mesoporous composite materials for low-temperature NH3-SCR
Authors: Li Ge , Wang Baodong , Ma Ziran , Wang Hongyan , Ma Jing , Zhao Chunlin , Zhou Jiali , Lin Dehai , He Faquan , Han Zhihua , Sun Qi , Wang Yun
Published: May 2020

Supported Mn2O3 is useful in achieving high dinitrogen selectivity at low temperature during ammonia-selective catalytic reduction (SCR). However, its controlled synthesis is challenging when the supporting material is the conventional pure silicon SBA-15 mesoporous molecular sieve. Here we show that silicon and aluminium in fly ash, the solid waste produced by coal-fired power plants, can be used to synthesize an Al-SBA-15 mesoporous molecular sieve support, which can guide the growth of Mn2O3 in the as-synthesized Fe-Mn/Al-SBA-15 NH3-SCR catalyst. Its superior catalytic performance is demonstrated by the high NOx conversion (≥90%) and selectivity (≥86%) at low temperatures (150–300 °C). The combined theoretical and experimental results reveal that the introduction of Al induces the growth of Mn2O3 catalysts. Our findings, therefore, provide a strategy for the rational design of low-temperature NH3-SCR catalysts through dopant-induced component engineering of composite materials.
Ligand regulation to prepare an Fe, N, S tri-codoped hollow carbon electrocatalyst for enhanced ORR performance and Zn–air batteries
Authors: Wu Yi , Yang Yvting , Gao Taotao , Chen Xiaojuan , Huang Zhihan , Zhang Jinmei , Guo Yong , Xiao Dan
Published: May 2020

By regulating the ligands of Fe-based complex to prepare enhanced ORR eletrocatalyst.
Correction: Self-assembled natLiCl–CeCl3 directionally solidified eutectics for thermal neutron detection
Authors: Cheng Shuangliang , Hunneke Rachel E. , Tian Mengkun , Lukosi Eric , Zhuravleva Mariya , Melcher Charles L. , Wu Yuntao
Published: May 2020

Correction for ‘Self-assembled natLiCl–CeCl3 directionally solidified eutectics for thermal neutron detection’ by Shuangliang Cheng et al., CrystEngComm, 2020, DOI: 10.1039/c9ce01884k.
New anticandidal Cu(i) complexes with neocuproine and ketoconazole derived diphenyl(aminomethyl)phosphane: luminescence properties for detection in fungal cells
Authors: Starosta Radosław , de Almeida Rodrigo F. M. , Puchalska Małgorzata , Białońska Agata , Panek Jarosław J. , Jezierska Aneta , Szmigiel Ida , Suchodolski Jakub , Krasowska Anna
Published: May 2020

Anticandidal activity and a complex luminescence in water solutions of the new copper(i) complexes with a ketoconazole derived phosphane ligand.
Thermally induced intra-molecular transformation and metalation of free-base porphyrin on Au(111) surface steered by surface confinement and ad-atoms
Authors: Sen Dipayan , Błoński Piotr , Torre Bruno de la , Jelínek Pavel , Otyepka Michal
Published: May 2020

We investigated chemical transformations of a fluorinated free-base porphyrin, 5,10,15,20-tetrakis(4-fluorophenyl)-21,23H-porphyrin under a Au(111) surface confinement and including gold adatoms by using an experiment and DFT calculations.
Correction: Controlling the dynamics of colloidal particles by critical Casimir forces
Authors: Magazzù Alessandro , Callegari Agnese , Staforelli Juan Pablo , Gambassi Andrea , Dietrich Siegfried , Volpe Giovanni
Published: May 2020

Correction for ‘Controlling the dynamics of colloidal particles by critical Casimir forces’ by Alessandro Magazzù et al., Soft Matter, 2019, 15, 2152–2162, DOI: 10.1039/C8SM01376D.
CC‐ROGI‐FLL based control for grid‐tied photovoltaic system at abnormal grid conditions
Authors: Kumar Abhishek , Kewat Seema , Singh Bhim , Jain Rashmi
Published: May 2020

This study presents a single stage grid‐interfaced solar photovoltaic (SPV) system using a multifunctional complex coefficient reduced ordered generalised integrator (CC‐ROGI) based frequency‐locked loop (FLL) control. The main contributions of this study, include (i) the extrication of fundamental active components from load currents using CC‐ROGI‐FLLbased control to generate the reference grid currents for voltage source converter (VSC) switching, (ii) VSC works as a distribution static compensator, which performs multi‐functions like harmonics mitigation, reactive power compensation, unity power factor operation and grid currents balancing, (iii) this CC‐ROGI‐FLL also extricates the fundamental grid voltages component even under grid voltage harmonic distortion and grid voltages unbalancing. Moreover, SPV power feed‐forward component is assimilated in this control to reduce the oscillations in grid currents under variable irradiance. Simulated and experimental results show satisfactory behaviour of the system at different conditions like load unbalancing, variable solar irradiance and abnormal grid conditions. The comparative performance of CC‐ROGI‐FLL control with other FLL and phaselocked loop controls are shown in this study. This CC‐ROGI‐FLL control has manifested a good steady state performance and dynamic response. The total harmonic distortions of grid currents are found well within the limits of the IEEE‐519 standard, even under abnormal grid conditions.
Vehicle collision avoidance motion planning strategy using artificial potential field with adaptive multi‐speed scheduler
Authors: Wahid Nurbaiti , Zamzuri Hairi , Amer Noor H. , Dwijotomo Abdurahman , Saruchi Sarah Atifah , Mazlan Saiful Amri
Published: May 2020

This study presents an adaptive motion planning strategy for automated vehicle collision avoidance systems to be associated with the variation of collision speed region based on the position of the obstacle. This is done by designing the motion planner using an artificial potential field (APF) with the incorporation of an adaptive multi‐speed scheduler using fuzzy system in the motion planning structure. The knowledge database information is developed based on the risk perception of the driver that consists of APF parameters and was optimised by using particle swarm optimisation algorithm. This study contributes to the improvement of a feasible reference motion generated by the motion planner that can be converted into desired control signals. The reference motion resulted to provide the control command that managed to avoid collision successfully by evasive manoeuvre without lane departure when adapting to variation in the vehicle speeds with different obstacle positions. The results indicated the reduction of the lateral error with respect to the reference avoidance trajectory data of up to 87% compared to base‐type APF with maximum reference lateral motion is reduced of up to 26%. Then, a hardware‐in‐loop test is conducted to verify the proposed strategy using a steering wheel system.
Probabilistic active distribution network equivalence with correlated uncertain injections for grid analysis
Authors: Huang Bin , Li Zhigang , Zheng Jiehui , Wu Q.H.
Published: May 2020

Equivalent modelling for active distribution networks (ADNs) is essential for improving the efficiency of analysing transmission networks. Current equivalent modelling methods for ADNs neglect the probabilistic characteristics of renewable energy sources (RESs) and loads. To address this issue, this study proposes a probabilistic equivalent modelling method (PEMM) for ADNs considering the uncertainty of RESs and loads. The uncertainty of the RESs and loads is transferred to the equivalent boundary bus injection using the properties of cumulant and power transfer matrices. The PEMM is extended to incorporate the correlations of RESs through an orthogonal transformation. A sampling method using the Gaussian copula function is employed to generate the correlated samples and the joint cumulants, providing the input data for the PEMM. The comparative results of the case studies on two different test systems demonstrate the effectiveness of the PEMM. The equivalent model developed in this study is a practical solution for analysing the transmission network efficiently and taking the uncertainty of RESs and loads in the ADNs into account simultaneously.
Simple and fast computation photovoltaic emulator using shift controller
Authors: Ayop Razman , Wei Tan Chee , Lawan Bukar Abba
Published: May 2020

Photovoltaic (PV) emulator (PVE) is a non‐linear power supply that produces a similar output to that of the PV module. It requires a closed‐loop controller such as the proportional–integral (PI) and fuzzy logic controllers to operate properly. The PI controller has a low‐computational burden and is not robust since the transient response varies under different load conditions. Although the fuzzy logic controller is robust, it requires high‐computation capability. This study proposed an alternative approach called the shift controller for the PVE to easily compute and maintain a fast transient response under various load conditions. The performance of the proposed shift controller for the PVE is compared with the performance of the PVEs using the PI and fuzzy logic controllers, respectively. The controllers are simulated using MATLAB/Simulink and implemented using dSPACE ds1104 for experimental validation. The results show that the proposed shift controller computes up to 18 times faster than the fuzzy logic controller. The proposed controller also responds faster to load change than the PI controller.
A new damselfly genus and species from Baltic amber (Odonata: Zygoptera: Euphaeidae)
Authors: Ferwer Wolfgang , Nel André
Published: May 2020

The new euphaeid genus and species,WolfgangeuphaeaferweriNel, are described from the Middle Eocene Baltic amber. It belongs to the Paleogene subfamily Eodichrominae. This new discovery confirms to remarkable past diversity of this family that contains now as many extinct genera and recent ones. They were distributed in North America and Europe, while the family is now-a-day only present in the Old World. There seems to have been a “replacement” of the Euphaeidae by the Calopterygidae during the latest Oligocene and the Neogene.
A simplified model for optimizing active caloric regenerators
Authors: Mandel Savannah
Published: May 2020

A simplified model for calculating the thermal effectiveness of active caloric regenerators can help screen caloric materials and improve future designs.
Spiral fluid device separates cells that stopped dividing from their healthy counterparts
Authors: Bandari Anashe
Published: May 2020

Being able to isolate senescent cells from healthy ones can help understand and treat age-related diseases.
Step by step monitoring of the surface modification of nanoparticles
Authors: Mandel Savannah
Published: May 2020

Using a micro-liquid inkjet printer and time of flight secondary ion mass spectrometry imaging, researchers observe step by step surface modification of nanoparticles for biomedical applications.
Quantization of electromagnetic modes and angular momentum on plasmonic nanowires*
Authors: Zhu Guodong , Guo Yangzhe , Dong Bin , Fang Yurui
Published: May 2020

Quantum theory of surface plasmons is very important for studying the interactions between light and different metal nanostructures in nanoplasmonics. In this work, using the canonical quantization method, the SPPs on nanowires and their orbital and spin angular momentums are investigated. The results show that the SPPs on nanowire carry both orbital and spin momentums during propagation. Later, the result is applied to the plasmonic nanowire waveguide to show the agreement of the theory. The study is helpful for the nano wire based plasmonic interactions and the quantum information based optical circuit in the future.
Suppression of Coriolis error in weak equivalence principle test using 85Rb–87Rb dual-species atom interferometer*
Authors: Duan Wei-Tao , He Chuan , Yan Si-Tong , Ji Yu-Hang , Zhou Lin , Chen Xi , Wang Jin , Zhan Ming-Sheng
Published: May 2020

Coriolis effect is an important error source in the weak equivalence principle (WEP) test using atom interferometer. In this paper, the problem of Coriolis error in WEP test is studied theoretically and experimentally. In theoretical simulation, the Coriolis effect is analyzed by establishing an error model. The measurement errors of Eötvös coefficient (η) in WEP test related to experimental parameters, such as horizontal-velocity difference and horizontal-position difference of atomic clouds, horizontal-position difference of detectors, and rotation compensation of Raman laser’s mirror are calculated. In experimental investigation, the position difference between 85Rb and 87Rb atomic clouds is reduced to 0.1 mm by optimizing the experimental parameters, an alternating detection method is used to suppress the error caused by detection position difference, thus the Coriolis error related to the atomic clouds and detectors is reduced to 1.1× 10−9. This Coriolis error is further corrected by compensating the rotation of Raman laser’s mirror, and the total uncertainty of η measurement related to the Coriolis effect is reduced as δη = 4.4 × 10−11.
Study on γ-ray source from the resonant reaction 19F(p,αγ) 16O at E
p = 340 keV*
Authors: Liu Fu-Long , Yang Wan-Sha , Wei Ji-Hong , Wu Di , He Yang-Fan , Li Yu-Chen , Ma Tian-Li , Shen Yang-Ping , Fan Qi-Wen , He Chuang-Ye , Guo Bing , Wang Nai-Yan
Published: May 2020

High energy γ-ray can be used in many fields, such as nuclear resonant fluorescence, nuclear medicine imaging. One of the methods to generate high-energy γ-ray is nuclear resonant reaction. The 19F (p,αγ) 16O reaction was used to generate 6.13-MeV γ-ray in this work. The angular distribution of 6.13-MeV γ-ray was measured by six LaBr3 detectors. The thick-target yield curve of 6.13-MeV γ-ray had been measured. The maximum yield was determined to be (1.85 ± 0.01) × 10−8
γ/proton, which was measured by HPGe detector and LaBr3 detector. The absolute efficiency of all the detectors was calibrated using 60 Co and 27Al (p,γ) 28Si reaction at E
p = 992 keV. The cross section and total resonant width of the reaction were determined to be 95.1±1.0 mb (1 b = 10−24 cm2) and Γ
CM = 2.21±0.22 keV, respectively.
Hyperbolic metamaterials for high-efficiency generation of circularly polarized Airy beams*
Authors: Chen Lin , Li Huihui , Hao Weiming , Yin Xiang , Wang Jian
Published: May 2020

Metasurfaces have exhibited considerable capability for generating Airy beams. However, the available plasmonic/dielectric metasurfaces Airy-beam generators have low transmission efficiency and/or poor quality of generated beam because they lack the amplitude modulation. Hyperbolic metamaterials (HMMs) have recently provided an alternative strategy for building high-performance meta-devices that are capable of flexibly modulating the phase, amplitude and polarization state of light. Here we reveal that both the propagation phase and the Pancharatnam–Berry phase can contribute to the local transmission phase of circularly polarized electromagnetic waves by using HMMs. This thus provides us with great freedom to design HMM units with different cross-sections to independently control the transmission phase and amplitude. Here, we design circularly polarized Airy-beam generators in the microwave and near-infrared domains, which require binary phase and polynary amplitude, and validate the good performance in the microwave experiment. Our work can facilate the generation of a complicated light field that highly requires independent and complete control of the transmission phase and amplitude under circularly polarized incidence.
Coupling analysis of transmission lines excited by space electromagnetic fields based on time domain hybrid method using parallel technique*
Authors: Ye Zhi-Hong , Wu Xiao-Lin , Li Yao-Yao
Published: May 2020

We present a time domain hybrid method to realize the fast coupling analysis of transmission lines excited by space electromagnetic fields, in which parallel finite-difference time-domain (FDTD) method, interpolation scheme, and Agrawal model-based transmission line (TL) equations are organically integrated together. Specifically, the Agrawal model is employed to establish the TL equations to describe the coupling effects of space electromagnetic fields on transmission lines. Then, the excitation fields functioning as distribution sources in TL equations are calculated by the parallel FDTD method through using the message passing interface (MPI) library scheme and interpolation scheme. Finally, the TL equations are discretized by the central difference scheme of FDTD and assigned to multiple processors to obtain the transient responses on the terminal loads of these lines. The significant feature of the presented method is embodied in its parallel and synchronous calculations of the space electromagnetic fields and transient responses on the lines. Numerical simulations of ambient wave acting on multi-conductor transmission lines (MTLs), which are located on the PEC ground and in the shielded cavity respectively, are implemented to verify the accuracy and efficiency of the presented method.
Analysis on sustainability status of cocoa plantation smallholders
Authors: Fairuzia N , Krisnamurthi B , Rifin A
Published: May 2020

This research was conducted in North Luwu Regency to analyze the sustainability of cocoa plantation smallholders based on an assessment of the index and the sustainability status using the Rap-Cocoa technique with the Multidimensional Scaling (MDS) method. The data used are primary and secondary. The primary data were obtained from direct interviews with farmers and some cocoa experts. The secondary data were obtained from the Statistics Indonesia, ministry of agriculture Republic of Indonesia, and literature that supported this research. The results of the Rap-Cocoa ordination technique with the MDS method indicated that the sustainability index value of cocoa plantation smallholders in the North Luwu Regency ranges from 38.81-57.32. The four regions on North Luwu Regency respectively are Masamba, Sabbang, Babeunta, and Mappedeceng subdistricts are on sustainable category status and for two regions are Malangke Barat and Sukamaju subdistricts are less sustainable. The index value and sustainability status of cocoa plantation smallholders in North Luwu Regency on each dimension indicated that the three dimensions (economic, social and environment) specify Baebunta subdistrict as a relatively large index value in two dimensions compared to the other five subdistricts, respectively social (47.87) and environment (63.27).
Farmers rasionality in doing land conversion
Authors: Ali M S S , Bakri R , Rukmana D , Demmallino E B , Salman D , Marsuka
Published: May 2020

All actions taken by farmers are not simply focused on benefits that can be obtained today. They also think about sustainability and the ability to make profits in the future. This study aims to discover the sustainability of the results of land conversion that has been carried out by the farmers in Tadokkong Village, Pinrang Regency. This research was conducted in Tadokkong Village, Lembang District, Pinrang Regency, South Sulawesi. Data collection was gathered through interviews and questionnaires obtained from the farmers. Analysis of the data used in this study was descriptive qualitative. Data were processed using a Likert scale. The results of this research indicated the sustainability of land conversion derived from three dimensions. First, the economic aspect to see the benefits derived from land conversion. Second is the ecological dimension to see the impact on the environment and the last is the social dimension to know the relationship cooperation between the farmers.
Sex ratio and first maturity size of matano ricefish (Oryzias matanensis Aurich, 1935) at Lake Towuti, South Sulawesi, Indonesia
Authors: Rinandha A , Aomar S B , Tresnati J , Yanuarita D , Umar M T
Published: May 2020

Matano Ricefish (Oryzias matanensis Aurich, 1935) is an endemic freshwater fish with economic value. This study aims at determining the sex ratio and first maturity size of Matano ricefish. The study was conducted from November 2017 to October 2018 in Lake Towuti, South Sulawesi. Sample was held analysis the Fisheries Biology Laboratory, Department of Fisheries, Hasanuddin University. Total number of fish obtained during the study was 880 individu, consist of 410 male fish and 470 female fish. Sex ratio was analyzed with the chi-square test, while the average size at first gonad maturity was estimated using the Spearman-Karber method. The results showed that the sex ratio of male and female medaka ricefish was 1.00: 1.15, while size at first maturity of male gonad was 36.46 mm, and the female was 34.37 mm.
Development of model for honey bee management in hasanuddin university educational forest
Authors: Malamassam D
Published: May 2020

The Potency of Hasanuddin University Educational Forest (HU-Edufor) needs to be managed well as a research and education site, so that the forest concerned can contribute in supporting forest development in a broad sense. Forest Honey is one of mentioned potency that has an important role in the economic development strategy of rural communities and the sustainable agriculture sector. This research aims to study the potential of honey bee products and formulate a honey bee management model in the HU- Edufor. The research method used is the Field Survey and data analysis uses a qualitative analysis approach. The research results obtained about the potential yield of honey bee products in 3 (three) villages, namely Rompegading, Limampoccoe and Labuaja villages around the HU- Edufor based on the total amount of honey production per month as much as 584 liters / month and annual production of 4.742 liters / year, while based on the total the number of bee colonies harvested monthly is 351 colonies / month and annually is 1.910 colonies / year. The model of developing honey bees in the HU-Edufor is carried out through community empowerment activities together with the management of the HU-Edufor, village and district governments, related agencies, and banks as capital owners, in terms of cultivation, harvesting and post-harvest, until in processing and product marketing, so that honey and beekeeping business can provide optimal results.
Employment wage and wage system (human, animal and machine) at each stage of rice farming in irrigated rice fields
Authors: Rukmana D , Mahyuddin  , Salam M , Tenriawaru A N , Akhsan  , Riadi A F
Published: May 2020

The purpose of this study was to analyze the wage system and labor costs (human, animal, and machine) used at each stage of rice farming in irrigated rice fields in Mulyasri Village, Tomoni District, East Luwu Regency, South Sulawesi. The sample of respondents in this study was 32 irrigated rice farmers. Data collection method used in this study was by conducting interviews and questionnaires. The data analysis method used in this research was a quantitative descriptive method. This research was conducted from October 2018 to November 2018. The results of the study used was the wage system in the village of Mulyasri namely wholesale and daily labor costs IDR 64,105,-/HOK (land processing), IDR 62,000,-/HOK (seeding), IDR107,327,-/HOK (planting), IDR 62,000,-/HOK (fertilizing), IDR 45,000,-/HOK (pest control), IDR 28,000/sack (harvest), and IDR419,749,-/HOK (post-harvest).
Mangrove management collaboration in the Marusu coastal region of Maros regency
Authors: Yusran  , Sabar A
Published: May 2020

Coastal area is a gateway for various human development activities. In other words, the coastal region is the first time and received the most pressure compared to other regions. The aim of this study is to identify mangrove damage and its causes to formulate collaborative management that is more directed towards sustainable management while taking into aspects of the function and role of mangroves as a tool for natural coastal protection and security. The research conducted from April to November 2019 in the coastal area of Marusu, Maros Regency, South Sulawesi Province. Data collection is done through map analysis, survey and in-depth interviews. Mangrove ecosystem analysis, satellite imagery data and SWOT analysis are used to achieve the research objectives. The area of mangrove forests in 2009, 2014, 2016 and 2019 was 105.85 Ha, 101.07 Ha, 92.06 Ha and 100.06 Ha, respectively. Changes in land cover since 2009 towards the end of 2014, the conversion of mangrove forests into ponds and dry land agriculture from 2009 to 2014 covered 5.83 (5.51%) and 6.82 Ha (6.64%). Damage to mangrove forests contributes to abrasion, intrusion of sea water, and loss of habitat for animals such as birds, mammals, reptiles, insects, and various marine biota. SWOT analysis a sustainable management strategy in the form of SO. Zoning of mangrove ecosystems, into the core zone and cultivation zone. ST, Policies and regulations that are appropriate and binding. WO, Knowledge upgrading regarding the benefits of the existence of mangrove forests. WT, management of mangrove forests based on pentahelix partnerships.
Development strategy of brown rice farming
Authors: Rahmadanih  , Rukka R M , Saadah  , Arsyad M , Amiruddin A , Sukmawati  , Anisa A
Published: May 2020

Dryland is one of the resources that have great potential for agricultural development, especially fields that produce rice to meet people’s food needs. Paddy fields consist of several varieties, one of which is brown rice. The research was conducted in Paminggalang Village, Sendana Subdistrict, West Sulawesi, Indonesia by considering that the farmers are utilizing dry land as farmland for paddy fields. Information collected is in the form of internal factors consisting of the position of resources and farm performance. In addition, external factors include the social environment, economic environment, ecological environment, technological environment, and government policy. Some possible development strategies for brown rice farming. They are input supply strategies, cultivation strategies, harvest strategies, and marketing strategies.
Maximizing opportunities towards brown rice farming production
Authors: Rukka R M , Sukmawati  , Rahmadanih  , Saadah  , Arsyad M , Amiruddin A , Sulili A , Khaerati R
Published: May 2020

One of the efforts made by the government in meeting the community’s food needs is through the use of dry land as an agricultural area. Dryland is one of the resources that have great potential for agricultural development, especially fields that produce rice. This research was conducted in Paminggalang Village, Sendana Subdistrict, with the consideration of this area utilizing dry land as farmland for paddy fields. Information collected is in the form of internal factors consisting of the position of resources and farm performance. Then external factors include the social environment, economic environment, ecological environment, technological environment, and government policy. The analysis was carried out using the SWOT approach, which uses IFE calculations, EFE, IE matrix, SPACE matrix, and SWOT matrix. There are nine attributes of strength, five attributes of weakness, five attributes of opportunity, and three attributes of threat. IFE and EFE calculations showed that internal factors are the most dominant factor, with the strongest factor being the most dominant compared to weakness. The position of Oryza nivara paddy farming in Paminggalang Village in the IE matrix and the SPACE matrix are respectively in a place to guard and maintain and support aggressive strategies. The results showed that there are three strategies to capture available opportunities (S-O) that need to be maximized. Such as developing brown rice field rice products by optimizing available resources, maximizing the use of the land area as well as the number of inputs available to obtain good quality brown rice with higher selling prices and developing markets and market share.
Preparation of cookies from banana flour, soy flour, and Moringa leaf flour as an emergency food product
Authors: Hasan N W , Putri T P , Zainal
Published: May 2020

Emergency food is a processed food product specifically designed for consumption in post-natural disaster conditions. The food can be provided for 15 days until having adequate assistance. Emergency food products must meet the daily energy requirements of individuals, around 2100 kcal per day. One of the emergency food products is cookies. The purpose of this study was to evaluate the nutritional compound, hardness, and organoleptic properties of emergency food in the form of cookies, prepared from Saba banana flour, soy flour, and Moringa flour. The treatment in this research using a single factor, namely different composition of the flour with three variables and three replications. The three variables were F1 (banana flour 25%, soy flour 10%, and Moringa flour 10%), F2 (banana flour 15%, soy flour 15%, and Moringa flour 15%), and F3 (banana flour 20%, soy flour 20%, and Moringa flour 5%). The parameters were macro nutritional components, such as protein (Kjedhal extraction), fat content (Soxhlet method), and carbohydrate (difference method). It was also evaluated water content (wet basis by drying oven), ash content (furnace), fiber content, hardness (Texture analyzer), calorie (by calculation), and hedonic sensory test in terms of color, taste, aroma, and texture. The results showed that all treatments fulfill the calorie requirement of emergency food. In terms of hardness, F2 resulted in the hardest texture of cookies but still eatable. Organoleptic test results showed that cookies with the use of 20% banana flour, 20% soybean flour, and 5% moringa flour favored by the panelists.
Combine rice harvester performance test in Takalar Regency
Authors: Iqbal  , Supratomo  , Azis A
Published: May 2020

Post-harvest handling of rice is a very strategic effort to support increase in rice production. The main problem of the farmers in handling the harvest and post-harvest rice is high yield loss and bad quality grain and rice produced. Combine rice harvester is a rice harvester that can cut the stems of plants, shed and clean grain while walking in the field. The purpose of this study was to determine the work capacity and efficiency of a combined rice harvester in rice fields in Takalar regency. The results of the research are the use of rice harvesting machines in the rice field can accelerate the process of rice harvesting. The work capacity of the combine rice capacity is 5 hectares per day with 70 Horse Power.
Land suitability index to estimate the land potential for arabica coffee plantation: A case of Tompobulu District, Bantaeng Regency
Authors: Lopulisa C , neswati R , Norsyam M
Published: May 2020

This study aims to estimate the potential of land in Tompobulu district, Bantaeng Regency for the development of Arabica coffee plantation based on the land suitability index. The criteria of land suitability based on Sys et al. (1993), the land suitability index (LSI) calculated by using the parametric methods with the Khiddir equation. The correlation analysis between LSI and coffee yield by using Pearson correlation analysis. The results show that the climate suitability index in the study areas was around 48 (marginally suitable) with a limiting factor is rainfall of 3,337 mm/year. The result of the study shows that the LSI values ranged from 15.2 to 37.5 and was classified marginally suitable (S3) and currently not suitable (N1). Class S3 covered the area of around 3,926.92 ha or 62.42% while class N1 around 2,364.67 ha or 37,8%. The limiting factors are climate, salinity, CaCO3, coarse fragments, soil depth and texture in single or in combinations. The correlation between the LSI and Arabica coffee yields is relatively strong with a correlation coefficient higher than 0.9 (r> 0.9).