bluuebunny/crossref_metadata_2025_split huggingface dataset:
Model Sistem Monitoring pH dan Kekeruhan pada Akuarium Air Tawar berbasis Internet of Things
Authors: Tadeus Dista Yoel , Azazi Khasnan , Ariwibowo Didik 
Published: April 2020

Ikan hias dan vegetasi air memiliki rentang toleransi terhadap nilai parameter lingkungan. Parameter tersebut hendaknya senantiasa diawasi demi kelangsungan hidupnya. Internet of Things (IoT) telah dimanfaatkan sebagai sistem monitoring dan otomasi parameter lingkungan ikan dan vegetasi air namun sistem ini membutuhkan biaya yang tinggi. Tujuan penelitian ini adalah mengembangkan suatu model sistem monitoring berbasis IoT berbiaya rendah untuk memberikan informasi parameter pH dan kekeruhan air setiap saat kepada pemilik ikan hias. Sistem ini dibangun menggunakan komponen opensource dan sensor berbiaya rendah. Data monitoring digunakan untuk mengaktifkan aktuator berupa filter air. Filter akan aktif apabila tingkat kekeruhan air sudah melebihi batas kekeruhan yang ditentukan. Pengujian kekeruhan air aquarium menunjukkan saat kekeruhan mencapai 3000 ntu pukul 14.12 pompa aktif dan filter bekerja sampai kekeruhan berada pada nilai 498 ntu pada pukul 17.00 dan pompa mati secara otomatis. Nilai pH dan kekeruhan air berhasil ditampilkan dengan baik di aplikasi Blynk pada ponsel. Hasil pengujian menyimpulkan bahwa sistem monitoring yang dikembangkan telah berhasil diimplementasikan dengan baik. Ornamental fish and aquatic vegetation have a tolerance range of environmental parameter values. These parameters should always be monitored for survival. Internet of Things (IoT) has been utilized as a monitoring and automation system for environmental parameters of fish and aquatic vegetation, but this system requires high costs. The purpose of this study is to develop a low-cost IoT-based monitoring system model to provide information on pH parameters and water turbidity at any time to ornamental fish owners. This system is built using opensource components and low-cost sensors. Monitoring data is used to activate the actuator in the form of a water filter. The filter will active if the turbidity level of water has exceeded the specified turbidity limit. The aquarium water turbidity test showed that when the turbidity reached 3000 ntu at 14.12 the pump was active and the filter worked until the turbidity was at 498 ntu at 17.00 and the pump automatically shut down. The pH value and the turbidity of the water were successfully displayed in the Blynk application on the cellphone. The test results concluded that the monitoring system developed was successfully implemented.
All-optical dynamic tuning of local excitonic emission of monolayer MoS2 by integration with Ge2Sb2Te5
Authors: Ouyang Hao , Chen Haitao , Tang Yuxiang , Zhang Jun , Zhang Chenxi , Zhang Bin , Cheng Xiang’ai , Jiang Tian 
Published: April 2020

Abstract
Strong quantum confinement and coulomb interactions induce tightly bound quasiparticles such as excitons and trions in an atomically thin layer of transitional metal dichalcogenides (TMDs), which play a dominant role in determining their intriguing optoelectronic properties. Thus, controlling the excitonic properties is essential for the applications of TMD-based devices. Here, we demonstrate the all-optical tuning of the local excitonic emission from a monolayer MoS2 hybridized with phase-change material Ge2Sb2Te5 (GST) thin film. By applying pulsed laser with different power on the MoS2/GST heterostructure, the peak energies of the excitonic emission of MoS2 can be tuned up to 40 meV, and the exciton/trion intensity ratio can be tuned by at least one order of magnitude. Raman spectra and transient pump-probe measurements show that the tunability originated from the laser-induced phase change of the GST thin film with charge transferring from GST to the monolayer MoS2. The dynamic tuning of the excitonic emission was all done with localized laser pulses and could be scaled readily, which pave a new way of controlling the excitonic emission in TMDs. Our findings could be potentially used as all-optical modulators or switches in future optical networks.
Effects of roughness and resonant-mode engineering in all-dielectric metasurfaces
Authors: Yang Hao , Liu He , Song Boxiang , Li Yuanrui , Meng Deming , Chen Buyun , Hu Pan , Wang Yunxiang , Ou Tse-Hsien , Povinelli Michelle L. , Wu Wei 
Published: April 2020

Abstract
The development of all-dielectric metasurfaces vigorously prompts the applications of optical metasurfaces for the visible and near-IR light range. Compared to IR or longer wavelength light, visible and near-IR light have shorter wavelengths. As a result, surface roughness and imperfections of all-dielectric metasurfaces have larger scattering or absorption of visible and near-IR light, thereby directly affecting the performance of an all-dielectric metasurface. In this article, a volume-current method is adopted to study the effect of metasurface roughness. Numerical calculations based on the finite difference time domain (FDTD) method are also used to study the relationship between the effects of metasurface roughness and the optical resonant modes. Numerical predictions based on our theoretical studies fit the experimental data well. Further, the effect of different roughness levels on the all-dielectric metasurface performance is predicted. More importantly, a method utilizing resonant-mode engineering to enhance the metasurface performance (e.g. incident angle insensitivity) is also proposed and demonstrated. This work deepens our understanding of the working mechanism of all-dielectric metasurfaces and paves the way for their use in a broad spectrum of applications.
Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation
Authors: Weeber Jean-Claude , Colas-des-Francs Gérard , Bouhelier Alexandre , Leray Aymeric , Vasilev Kirill , Yu Xiao , Hammani Kamal , Arocas Juan-Miguel , Gadret Gregory , Markey Laurent , Dubertret Benoit 
Published: April 2020

Abstract
Micro-ring resonators made of titanium dioxide were decorated with local light sources comprising CdSe/CdS colloidal quantum dot aggregates. The active micro-resonators are operated to achieve efficient evanescent excitation of nearby co-planar integrated waveguides. Coupled-mode analysis and numerical simulations are used to capture the dynamic of the optical interaction between locally activated resonators and integrated waveguides. In this context, we exemplify the key role of resonator intrinsic loss. Next, we show that locally activated or bus-waveguide excited resonators are in optimum waveguide interaction for the same so-called critical coupling condition, although the physical origin of this property is different for each configuration. More importantly, we found that a locally activated resonator is a fabrication imperfection tolerant configuration for the coupling light of local sources into waveguides. This remarkable property originates from the opposite change of the power cycling into the resonator and the waveguide coupling efficiency as a function of the resonator-waveguide separation gap. By operating an 8-μm-radius ring resonator with loaded quality factors around Q = 2100, we experimentally demonstrate a 5.5-dB enhancement of the power coupled into the output waveguide compared to a direct local source waveguide excitation.
Diffraction engineering for silicon waveguide grating antenna by harnessing bound state in the continuum
Authors: Xu Hongnan , Shi Yaocheng 
Published: April 2020

Abstract
Silicon waveguide grating antennas (SWGAs) have been widely employed to interface the guided and radiation modes in various integrated photonic systems. However, ultrasmall feature sizes or heteromaterial integrations are usually required to obtain long propagation length and small far-field divergence. Moreover, for conventional SWGAs, the diffraction strength is wavelength sensitive, so the output power and far-field divergence will deviate in the beam steering process. In this paper, we propose and demonstrate a novel approach to engineer the diffraction in SWGA by harnessing the bound state in the continuum (BIC). A new degree of freedom is attained in diffraction engineering by introducing the “modified” diffraction formula. The side-wall emission can be dramatically depressed by building the quasi-BIC at critical waveguide width, leading to ultrauniform diffraction. The extremely weak diffraction strength (~3.3 × 10−3 dB/μm) has been experimentally realized for the fabricated device with a large feature size (~60 nm). From the measurement results, one can predict a centimeter-scale propagation length and an ultrasmall divergence (~0.027°). Moreover, the diffraction strength dispersion can be flattened for SWGA with critical waveguide width. Such effect has also been experimentally verified. Our proposed design is the first one that introduces the BIC effect into SWGA optimization, paving the way for precise diffraction engineering and high-performance integrated optical antennas.
2D materials integrated with metallic nanostructures: fundamentals and optoelectronic applications
Authors: Yan Siqi , Zhu Xiaolong , Dong Jianji , Ding Yunhong , Xiao Sanshui 
Published: April 2020

Abstract
Due to their novel electronic and optical properties, atomically thin layered two-dimensional (2D) materials are becoming promising to realize novel functional optoelectronic devices including photodetectors, modulators, and lasers. However, light–matter interactions in 2D materials are often weak because of the atomic-scale thickness, thus limiting the performances of these devices. Metallic nanostructures supporting surface plasmon polaritons show strong ability to concentrate light within subwavelength region, opening thereby new avenues for strengthening the light–matter interactions and miniaturizing the devices. This review starts to present how to use metallic nanostructures to enhance light–matter interactions in 2D materials, mainly focusing on photoluminescence, Raman scattering, and nonlinearities of 2D materials. In addition, an overview of ultraconfined acoustic-like plasmons in hybrid graphene–metal structures is given, discussing the nonlocal response and quantum mechanical features of the graphene plasmons and metals. Then, the review summarizes the latest development of 2D material–based optoelectronic devices integrated with plasmonic nanostructures. Both off-chip and on-chip devices including modulators and photodetectors are discussed. The potentials of hybrid 2D materials plasmonic optoelectronic devices are finally summarized, giving the future research directions for applications in optical interconnects and optical communications.
Real-time and noninvasive tracking of injectable hydrogel degradation using functionalized AIE nanoparticles
Authors: Zhang Mengdi , Wang Zengliang , Huang Pengzhou , Jiang Guanwei , Xu Changpeng , Zhang Wentao , Guo Rui , Li Wenqiang , Zhang Xintao 
Published: April 2020

Abstract
Visually monitoring of the residual morphology and quantitatively determining the degradation degree of hydrogels applied in tissue repair therapy in a real-time and noninvasive manner were a crucial technological mean. Despite conventional organic fluorescent molecules commonly used as probe to capture the real-time clues of the labeled hydrogels, they still encounter obstacles, including intrinsic photobleaching, cytotoxicity, and unknown interference factor of degradation caused by the change from polymer structure of hydrogels, thus making it difficult to accurately obtain the information of the hydrogels in vivo. To address the hard nut, we designed the multifunctional hydrogel system with a real-time quantitative aggregation-induced emission fluorescent detection and photoacoustic imaging tracking based on tetraphenylethene (TPE) that possesses the trait of aggregation-induced emission and low photobleaching, bound on the surface of mesoporous dopamine microspheres (MPDAs), and subsequently loaded into the photo-crosslinked injectable hydrogels. In vitro results showed that MPDA-TPE had good compatibility, emitted strong fluorescence when embedded in hydrogels, and maintained stable fluorescence property unless the hydrogels were degraded. Meanwhile, a mathematical formula for the kinetic degradation of hydrogels was established between gravitational and visual degradation in vitro, which can be used to predict in vivo degradation. Furthermore, MPDA possessed the clear photoacoustic imaging effect to provide more accurate clues. The designed hydrogel system holds a potential role in prediction of the in vivo degradation of implanted materials in an accurate, convenient, and real-time noninvasive manner and is a meaningful treatment aid in tissue engineering.
Magnitude and Reliability of Velocity and Power Variables During Deadlifts Performed With and Without Lifting Straps
Authors: Jukic Ivan , García-Ramos Amador , Malecek Jan , Omcirk Dan , Tufano James J. 
Published: April 2020

Abstract
Jukic, I, García-Ramos, A, Malecek, J, Omcirk, D, and Tufano, JJ. Magnitude and reliability of velocity and power variables during deadlifts performed with and without lifting straps. J Strength Cond Res 36(5): 1177–1184, 2022—This study aimed to compare the magnitude and reliability of mean velocity (MV), peak velocity (PV), mean power (MP), and peak power (PP) between deadlifts performed with (DLw) and without (DLn) lifting straps. Sixteen resistance-trained men performed a DLn 1-repetition maximum (1RM) session followed by 4 experimental sessions (2 with each deadlift variant in a randomized order). Each experimental session comprised lifts at 20, 40, 60, and 80% of the DLn 1RM. No significant differences were found between DLw and DLn for MV, MP, PV, and PP at any load (p = 0.309–1.00; g = 0.00–0.19). All mechanical variables showed an acceptable reliability for both deadlift conditions at each relative load (coefficient of variation [CV] <8%; intraclass correlation coefficient [ICC] > 0.70; g < 0.5) with the only exception of MV at 60% 1RM for DLw (ICC = 0.62) and at 40% 1RM for DLn (ICC = 0.65). Furthermore, MV and PV generally had lower within-subject CV (CV = 3.56–5.86%) than MP and PP (CV = 3.82–8.05%) during both deadlift conditions. Our findings suggest that sport professionals might not need to consider implementing lifting straps with the aim to maximize velocity and power outputs with submaximal loads in a deadlift exercise. Because all mechanical variables measured showed an acceptable level of reliability for both DLw and DLn, they can all be used to track changes in performance during the deadlift exercise. However, velocity variables were slightly more consistent (lower CV), which makes them more appropriate to track DLw and DLn performance changes.
Semantical Interpretations of the Temporal Logic Systems CL and Kb with the Gaps of Traditional Truth-values
Authors: Pabijutaitė Živilė 
Published: April 2020

Over the past several decades, in the field of temporal logic there have been created a great number of semantical theories that provide different truth conditions for tensed propositions. In this article we deal with five non-bivalent semantical interpretations of the temporal logic systems CL (Cocchiarella Linear) and Kb (Kripke Branching): 1) Ł3 by J. Łukasiewicz; 2) K3 by S. C. Kleene; 3) Ockhamism by A. Prior; 4) supervaluationism by R. Thomason; 5) relativism by J. MacFarlane. The aim of this article is to present a detailed typology of the five semantical theories based on these criteria: a) the ability to deal with the problem of retrospective evaluation of future contingent propositions; b) the ability to deal with the problem of divine omniscience and free will; c) their relation to the law of excluded middle; d) their relation to other formulas that are intuitively acceptable in an intederministic context. It is argued that the only theory that satisfies all four criteria is the relativism of J. MacFarlane; however, it faces some serious challenges when dealing with the problem of retrospective evaluation of future contingent propositions in the theological context.
Kimya Öğretmenlerinin Alan Eğitimi Bilgisi Temelinde Öğretim Programı Bilgilerinin Fiziksel ve Kimyasal Değişimler Konusu Kapsamında İncelenmesi
Authors: ŞEN Ayse Zeynep , NAKİBOĞLU Canan 
Published: April 2020

Alan eğitimi bilgisi (AEB), öğretmenlerin bir şeyi
öğretme konusunda sahip oldukları bilgidir ve farklı alt bileşenleri
bulunmaktadır. Bunlardan biri, bu araştırmanın da odak noktası olan öğretim
programı bilgisidir. Bu araştırmanın amacı, deneyimli kimya öğretmenlerinin öğretim
programı bilgisini dokuzuncu sınıf kimya dersi öğretim programı bağlamında
incelemektir. Araştırma durum çalışması modeline göre tasarlanmış ve
katılımcılar farklı öğretim deneyimlerine sahip dört kimya öğretmenidir.
Veriler; gözlem, görüşme ve ders planı ile toplanmış ve daha sonra içerik
analizine göre analiz edilmiştir. Araştırmanın sonunda, katılımcıların
dokuzuncu sınıf kimya dersi öğretim programının felsefesinin kısmen farkında
oldukları söylenebilir. Bunların yarısı öğretim programının felsefesinin günlük
yaşam ile kimya kavramları arasında bir ilişki kurmak olduğunu, geri kalanı ise
kimyaya giriş olarak algıladığını ifade etmiştir. Ek olarak, katılımcıların
fiziksel ve kimyasal değişimler (FKD) konusundaki kazanım ve açıklamaları
belirlemeleri istendiğinde, sadece bir öğretmenin programda yer alan kazanımı
yazdığı sonucuna ulaşılmıştır. Diğer öğretmenlerden ikisi kazanımı programdan
almak yerine kendileri yeni bir kazanım yazmışlardır. Son olarak, katılımcıların FKD’nin öğretiminde
ders planına yazdıkları kazanım ve açıklamaları ne derece gerçekleştirdikleri
incelendiğinde katılımcıların bu kazanım ve açıklamalar ışığında konunun
öğretimini gerçekleştirdikleri söylenebilir.
Seismic Magnitudes, Corner Frequencies, and Microseismicity: Using Ambient Noise to Correct for High-Frequency Attenuation
Authors: Butcher Antony , Luckett Richard , Kendall J.-Michael , Baptie Brian 
Published: April 2020

ABSTRACTOver recent years, a greater importance has been attached to low-magnitude events, with increasing use of the subsurface for industrial activities such as hydraulic fracturing and enhanced geothermal schemes. Magnitude distributions and earthquake source properties are critical inputs when managing the associated seismic risk of these activities, yet inconsistencies and discrepancies are commonly observed with microseismic activity (M&lt;2). This, in part, is due to their impulse response being controlled by the medium, as opposed to the source. Here, an approach for estimating the high-frequency amplitude decay parameter from the spectral decay of ambient seismic noise (κ0_noise) is developed. The estimate does not require a pre-existing seismic catalog and is independent of the source properties, so avoids some of the main limitations of earthquake-based methods. We then incorporate κ0_noise into the Brune (1970) source model and calculate source properties and magnitude relationships for coal-mining-related microseismic events, recorded near New Ollerton, United Kingdom. This generates rupture radii ranging approximately between 10 and 100 m, which agrees with the findings of Verdon et al. (2018), and results in stress-drop values between 0.1 and 10 MPa. Calculating these properties without κ0_noise produces much higher rupture radii of between 100 and 500 m and significantly lower stress drops (∼1×10−2  MPa). Finally, we find that the combined κ0-Brune model parameterized with these source property estimates accurately capture the ML–Mw relationship at New Ollerton, and that stress drop heavily influences the gradient of this relationship.
Accuracy of automated urine dipstick test as a screening tool for proteinuria in hypertensive disorders of pregnancy
Authors: Sundaram Sankar , Kuriakose Ann Mili , P. Vijayan C. 
Published: April 2020

Background: Progressive proteinuria implies worsening of the condition in hypertensive disorders of pregnancy and hence its quantification guides clinician in making decision and planning treatment. The gold standard is 24 hour urine protein estimation. Urine sediment cytology, also known as ‘liquid renal biopsy’ identifies and analyses the extent of renal damage.Methods: Objectives of the study were to compare the efficacy of urine dipstick test to 24 hour urine protein estimation in detecting proteinuria in pre-eclampsic patients and to describe the findings in urine sediment examination in assessing proteinuria in above patients. Urine dipstick test and sediment cytology were performed on the urinary samples of 242 pregnant women with high BP recordings (BP>140/90 mm Hg) which were collected and tested in Department of Pathology, Government Medical College, Kottayam during the study period of 18 months. This was compared with 24 hour urine protein values (gold standard).Results: About 154 patients (63.63%) had significant proteinuria of more than 300mg/24hr. Dipstick method showed 78.57% sensitivity and 81.82% specificity for prediction of significant proteinuria. Positive predictive value and negative predictive value of urine dipstick test were 88.32% and 68.57% respectively. Urine sediment examination revealed the presence of casts only in 11.98% of study population. Conclusions: Diagnostic accuracy of automated urine dipstick test in assessing proteinuria was 79.75%. For grade 1 proteinuria, diagnostic accuracy was 79.81%, for Grade 2 it increased to 93.14% and for grade 3 & 4, accuracy was 98.68%. Urine sediment examination didn’t correlate with proteinuria and hence the extent of renal damage in pre-eclampsia.
Misoprostol sublingual en el tercer período del parto. Estudio clínico doble ciego, con asignación aleatoria, controlado con placebo en el Hospital de Maternidad Rafael Calvo de Cartagena
Authors: Angarita Peñaranda William , Rodríguez Yances Benjamín , Borre Arrieta Orlando 
Published: April 2020

Determinar la seguridad y eficacia del misoprostol sublingual en el manejo activo del alumbramiento.Materiales y métodosLa presente investigación es un estudio a doble ciego, prospectivo, con asignación aleatoria y controlado contra placebo. Se administró una dosis de 100 µg de misoprostol sublingual o placebo durante el tercer período de parto inmediatamente después del pinzamiento del cordón. Se cuantificó estrictamente el sangrado en un recipiente calibrado, la duración del alumbramiento, los signos vitales y los efectos colaterales.ResultadosEl sangrado promedio en el grupo de misoprostol fue 599,4 + 426,9 mL y en el grupo placebo fue 670,3 + 482,5 mL (p >0,05). Aunque se observó una disminución del sangrado en el grupo de misoprostol, la diferencia no fue estadísticamente significativa (p>0,05). La duración promedio del alumbramiento en el grupo de misoprostol fue de 431 + 231,8 seg y en el grupo placebo 517,6 + 412,7 seg. Aunque se observó una disminución del tiempo de alumbramiento en el grupo de misoprostol, la diferencia no fue estadísticamente significativa (p > 0,05). Los signos vitales tuvieron características similares en ambos grupos. No se presentaron efectos colaterales.ConclusiónLa dosis de 100 µg de misoprostol administrada vía sublingual en el tercer período del parto reduce el sangrado, el tiempo del alumbramiento, es bien tolerada y segura.