bluuebunny/crossref_metadata_2025 huggingface dataset:
Highly Sensitive Detection of CB [7] Based on Fluorescence Resonance Energy Transfer between RhB and Gold Nanoparticles
Authors: Zeng Yan , Shi Qikun , Yang Xiran , Chatterjee Sobhan , Lv Zaosheng , Liang Feng
Published: December 2019

Background:

Cucurbit[n]uril (CB[n], n=5, 6, 7, 8 and 10）is a type of macrocyclic compounds
formed by n glycerol units and 2n methylene. The different sizes of the cavity lead to the
different chemical characteristics of CB[n]. Therefore, it is very important to distinguish and detect
CB[n].

Methods:

At room temperature, Rhodamine B was added to a gold nanoparticles solution. The above
mixture was respectively mixed with different concentrations of Cucurbituril[n] or β-cyclodextrin
solutions. The fluorescence spectra and ultraviolet-visible spectra of samples were determined.

Results:

It was found that 1.2nM gold nanoparticles could quench the fluorescence of 1μM Rhodamine
B completely. After adding a certain amount of Cucurbituril[7], the fluorescence intensity of
Rhodamine B was restored. Compared with other macrocyclic compounds, such as Cucurbituril[5],
Cucurbituril[6] and β-cyclodextrin, we found that this method had unique selectivity for Cucurbituril[
7]. Under the optimal conditions, the fluorescence recovery efficiency was linearly proportional
to the concentration of Cucurbituril[7] in the range of 0.8-8 μg·mL-1. The detection limit was 0.21
μg·mL-1.

Conclusion:

The research established an effective and practical FRET-based detection method for
CB[7] with RhB as a donor and the gold nanoparticles as the acceptor. The system had unique and
extensive selectivity for CB[7].
PET/CT and the Response to Immunotherapy in Lung Cancer
Authors: Evangelista Laura , Sepulcri Matteo , Pasello Giulia
Published: December 2019

Objective:

In recent years, the introduction of immune checkpoint inhibitors has significantly
changed the outcome of patients affected by lung cancer and cutaneous melanoma. Although the
clinical advantages, the selection of patients and the evaluation of response to immunotherapy remain
unclear, the immune-related Response Evaluation Criteria in Solid Tumor (irRECIST) was proposed as
an update of the RECIST criteria for the assessment of response to immunotherapy. However, morphological
images cannot predict early response to therapy that represents a challenge in clinical practice.
18F-FDG PET/CT before and after immunotherapy has an indeterminate role, demonstrating ambiguous
results due to inflammatory effects secondary to activation of the immune system. The aim of the
present review was to analyze the role of PET/CT as a guide for immunotherapy, by analyzing the
current status and future perspectives.

Methods:

A literature search was conducted in order to select all papers that discussed the role of
PET/CT with FDG or other tracers in the evaluation or prediction of response to immunotherapy in
lung cancer patients.

Results:

Many papers are now available. Many clinical trials have demonstrated the efficacy of immunotherapy
in lung cancer patients. FDG PET/CT can be used for the prediction of response to immunotherapy,
while its utility for the evaluation of response is not still clearly reported. Moreover, the standardization
of FDG PET/CT interpretation is missing and different criteria, such as information, have
been investigated until now.

Conclusions:

The utility of FDG PET/CT for patients with lung cancer undergoing immunotherapies is
still preliminary and not well addressed. New agents for PET are promising, but large clinical trials are
mandatory.
Internationalization at Home, COIL and Intercomprehension
Authors: Guimarães Felipe Furtado , Mendes Ana Rachel Macêdo , Rodrigues Lisiane Mendes , Paiva Raquel Soprani dos Santos , Finardi Kyria Rebeca
Published: December 2019

This study aims to explore the concept, benefits, challenges and activities related to Internationalization at Home (IaH), defined as the integration of international/intercultural dimensions into the formal/informal curriculum in domestic learning environments (Beelen & Jones, 2015), as an alternative for more inclusive activities in higher education, within the process of internationalization. The study also offers a review of studies carried out mainly in Brazil by a Brazilian research group. Considering the importance of information and communication technologies (ICTs) in current practices of education and international exchange, this study explores possibilities of approaches such as COIL (Collaborative Online International Learning), allied with the Intercomprehension approach (IA) to suggest the development of more multilingual and inclusive activities, which foster IaH as an alternative to current and hegemonic internationalization practices. The paper concludes with some suggestions for the incorporation of such approaches, assuming that IaH should be prioritized in the internationalization agenda once it caters for a larger audience and, as such, is more inclusive and democratic.
“Doing” Internationalization
Authors: Beck Kumari , Ilieva Roumiana
Published: December 2019

In the context of an increasing commodification of education in a neoliberal academy, this paper explores the usefulness of frameworks for principled internationalization of higher education.  We review recent theoretical analyses of ideologies and orientations of higher education internationalization as well as suggested approaches for principled and ethical internationalization as important signposts in that regard. We discuss data on the everyday experiences of internationalization of faculty, students and staff in one Faculty in Canada in light of these perspectives and propose guidelines that could influence internationalization practices in a more ethical and principled direction.
Till We Meet Again
Authors: Tan Poh
Published: December 2019

A Farewell letter from Editor-in-Chief, Poh Tan.
O ser, a máquina e a solidão
Authors: Fioruci Wellington Ricardo
Published: December 2019

O presente artigo tem por objetivo analisar o filme Her, dirigido e roteirizado pelo realizador estadunidense Spike Jonze em 2013, com vistas a explorar as relações entre sociedade e tecnologia propostas pela obra cinematográfica. Neste sentido, destacam-se no filme a problemática da solidão do indivíduo e os conflitos relativos à alteridade potencializados e mediados pela relação do homem com a tecnologia, temas caros à sociedade contemporânea.
Recensie van: Jan Van Rijswijck: Boegbeeld van het sociale liberalisme / Lode Hancké (1993)
Authors: Wils Lode
Published: December 2019

recensie
Recensie van: Paul de Mont, 1895-1950, Onder redactie van Rozemie Steyaert en Frédéric van Waeijenberghe (1995)
Authors: Van Hees Pieter
Published: December 2019

recensie
Recensie van: Histoire du Congrès wallon d’octobre 1945. Un avenir politique pour la Wallonie ? / Philippe Raxhon (1995)
Authors: Wils Lode
Published: December 2019

recensie
О природе аномальной температурной зависимости коэффициента Холла, наблюдающейся в полупроводниковых кристаллах твердых растворов Bi-=SUB=-2-=/SUB=-Te_3-Sb-=SUB=-2-=/SUB=-Te-=SUB=-3-=/SUB=-
Authors: Степанов Н.П.
Published: December 2019

Based on the analysis of the results of experimental studies, it is shown that in crystals Bi2Te3-Sb2Te3, in which the amount of electrical conductivity at 4.2 K exceeds 1.5•106 Cм/м , a certain process is being intensified to increase electrical conductivity in the range of 4.2 to 15 K. Subsequent decrease in the amount of electrical conductivity with a temperature increase from 15 K and before the beginning of the dominance of its own conductivity, accompanied by an abnormal increase in the coefficient Hall may be partly due to the decrease in the intensity of the process. It is suggested that in the conditions of convergence of plasma energy and the width of the prohibited zone, the influence of plasmon-phonon-polaritones can provide the opposite effect polarization that forms the basis of this process.
Антикорреляция интенсивности стимулированного пикосекундного излучения GaAs и характерного времени остывания носителей заряда
Authors: Агеева Н.Н. , Броневой И.Л. , Забегаев Д.Н. , Кривоносов А.Н.
Published: December 2019

During the powerful picosecond optical pumping, intense stimulated picosecond emission arises in a thin GaAs layer. It was found that, firstly, the maximum emission intensity decreases with increasing diameter of the pump beam (the pump energy density is fixed). Secondly, this dependence is anticorrelated with the dependence on the diameter of the characteristic relaxation time of the emission. And this time, in turn, is associated with the characteristic cooling time of charge carriers, which is slowed down due to heating of the carriers by emission. As a result, the autocorrelation indicated in the title is revealed.
Выращивание и свойства монокристаллов FeIn-=SUB=-2-=/SUB=-S-=SUB=-3.6-=/SUB=-Se-=SUB=-0.4-=/SUB=-
Authors: Боднарь И.В.
Published: December 2019

Abstract FeIn_2S_3.6Se_0.4 single crystals are grown by planar crystallization of the melt (the vertical Bridgman method). The composition and crystal structure of the crystals are determined. It is established that the single crystals crystallize with the formation of the cubic spinel structure. From the transmittance spectra in the region of the fundamental absorption edge, the band gap of the single crystals is determined. Thermal expansion of the FeIn_2S_3.6Se_0.4 single crystals is studied by the dilatometric technique in the temperature range from 80 to 550 K, and the coefficients of thermal expansion are determined. From the coefficients of thermal expansion determined, the Debye temperatures and the root-mean-square (rms) dynamic displacements of atoms are calculated. It is shown that, as temperature is elevated, the Debye temperatures decrease and the rms dynamic displacements of atoms increase. Magnetic studies show that the FeIn_2S_3.6Se_0.4 single crystals are paramagnetic materials at temperatures down to 12.4 K.
Высокочастотная проводимость неупорядоченных полупроводников в области перехода от линейной к квадратичной частотной зависимости
Authors: Ормонт М.А. , Звягин И.П.
Published: December 2019

Abstract Features of the high-frequency conductivity of disordered semiconductors related to hopping electron transport over the impurity band are discussed. The frequency dependence of the real part of the low-temperature phononless conductivity in the region of the transition (crossover) from the linear to quadratic frequency dependence of the conductivity is calculated in the pair approximation. It is shown that the crossover in the terahertz-frequency range is related to the transition of the conductivity from the variable-range to fixed-range hopping regime with increasing frequency.
Температурная зависимость потерь в механическом резонаторе, изготовленном методом прямого сращивания кремниевых пластин
Authors: Прохоров Л.Г. , Светаев А.В. , Лунин Б.С. , Запотылько Н.Р. , Катков А.А. , Митрофанов В.П.
Published: December 2019

Cooling of devices made of monocrystalline silicon to a temperature of 123 K, at which the coefficient of thermal expansion of silicon exhibits a zero crossing, improves their stability and reduces noise. In the temperature range (100 - 295 K), the temperature dependences of the losses (damping) in a tuning fork mechanical resonator made of silicon strips and connected by direct bonding technique were investigated. This allows non-destructive monitoring of the quality of the bonding, as well as to identify the peculiarities of behavior and changes that occur at the bonding interface over time.
Формирование наночастиц Au и особенности травления подложки Si после облучения атомарными и молекулярными ионами
Authors: Тужилкин М.С. , Беспалова П.Г. , Мишин М.В. , Колесников И.Е. , Карабешкин К.В. , Карасев П.А. , Титов А.И.
Published: December 2019

Formation of metal nanoparticles on silicon substrate by thin gold film irradiation with accelerated atomic and molecular ions is shown. Structures obtained were etched by metal-assisted catalytic chemical technique to get porous silicon structure. Size of gold nanoparticles and the structure of porous siliconstrongly depend on kind of incident species and ion dose. A local increase in the energy release density at the target surface that takes place during molecular ion bombardment significantly reduce the doses required for the formation of predetermined film morphology and the distribution of nanoparticles on the surface, while at the same time molecules exhibit lower radiation effect on the substrate. Luminescent properties of porous silicon do not depend on the kind of ion used, and can be tuned by composition of an etching solution
Управление синтезом и составом полупроводников. Малодефектный карбид кремния и низкоразмерный селенид кадмия
Authors: Зломанов В.П.
Published: December 2019

Abstract The details of the controlled synthesis and basic performances determining the properties of the semiconductor substances—composition, structure, size and morphology of the particles forming them—were discussed. The nontrivial, but important for the functional use of semiconductors, criteria of purity and homogeneity were expressed. The noted details of the materiology of semiconductors were discussed with the example of the synthesis of low-defect wafers of silicon carbide, and also low-dimensional powders of cadmium selenide.
Процесс кристаллизации при наличии течения
Authors: Эйдельман Е.Д. , Дурнев М.А.
Published: December 2019

A calculation method of size distribution of heavily postcritical nucleation centers in the presence of a flow in melt or vapour for first-order phase transition, i.e., crystallization or condensation, is proposed. The considered method has been confirmed by an experimental investigation of the centrifugal casting of Al.
Синтез тонких пленок TiN, Ti и TiSi-=SUB=-2-=/SUB=- для контактной системы солнечных элементов
Authors: Нусупов К.Х. , Бейсенханов Н.Б. , Бакранова Д.И. , Кейнбай С. , Турахун А.А. , Султан А.А.
Published: December 2019

Abstract The influence of deposition parameters, such as: the magnetron power in the range 690–1400 W, the silicon substrate temperature 23–170°C, the N_2 gas flow rate 0.9–3.6 L/h, the Ar gas flow rate 0.06‒3.6 L/h, the ratio of N_2/Ar gas flows 1–60 on the thickness, the density, and the composition of the deposited films is analyzed. The maximum density 5.247 g/cm^3 corresponding to the TiN_0.786 = Ti_56N_44 composition has been achieved at the following deposition parameters: 1200 W, N/Ar = 1.8/0.06 L/h = 30, 0.8 Pa, 320 s, and 100°C. At temperatures 700–800°C, the mutual diffusion of titanium and silicon atoms through the interface leads to the active nucleation, the formation of nanocrystals and low-resistance metallization layers. X-ray diffraction shows that, during annealing at 700°C (30 min, Ar), the formation of phase TiSi_2 due to the diffusion of Ti atoms into silicon is twice more intense than the formation of Ti_5Si_3 due to the diffusion of silicon atoms into titanium as a result of high hardness of titanium. The average sizes of TiSi_2 decreases from 7.1 to 5.6 nm at 750°C due to the crystallization of the nuclei and increase to 9.2 nm at 800°C.
Электронная структура и оптические свойства соединения FeAl-=SUB=-2-=/SUB=-
Authors: Князев Ю.В. , Лукоянов А.В. , Кузьмин Ю.И.
Published: December 2019

Electronic structure and optical properties of the FeAl2 intermetallic compound are investigated. Spin-polarized calculations of the electronic structure were carried out, magnetic moments of the atoms were determined. Optical properties of the compound were measured by ellipsometric technique in spectral interval 0.22 – 15 μm. It is shown that the experimental optical conductivity is satisfactory interpreted on the base of the calculated density of electronic states.
Влияние ангармонизма на тепловыделение и упрочнение металлов при квазистатическом растяжении
Authors: Судьенков Ю.В.
Published: December 2019

Abstract In this paper, we present the analysis of results of experimental studies of energy dissipation and variations of the transverse strain coefficients under quasistatic tensile stress of metals. The nature of changes in these processes at different stages of deformation is considered: elastic, nonlinear, transition from elastic to developed plastic flow, and developed plastic flow. It is shown that at all stages there is a correlation of changes in independently measured strain parameters: temperature, transverse strain coefficients, and hardening. The decisive effect of the interaction potential anharmonicity on the nature of the processes of changes in modules and dissipation at the nonlinear stage of deformation is discussed.
О магнитных состояниях зигзагообразной кромки графеновой наноленты
Authors: Давыдов С.Ю.
Published: December 2019

Abstract Using a simple structural model and the multicenter Anderson Hamiltonian, Green’s functions are obtained for the atoms of the zigzag edge of an epitaxial graphene nanoribbon. The electronic structure of the free nanoribbon is discussed in detail. Specifically, expressions for the band spectrum and density of states are found and estimates of the occupation numbers and magnetic moments are given. For a nanoribbon strongly bonded to a metal substrate, the criteria for the appearance of magnetic moments are determined. As it is shown for both free and epitaxial nanoribbons, the probability of the appearance of magnetic moments and their magnitude for zigzag edge atoms that have two nearest neighbors is higher than for atoms with three nearest neighbors.
Экспериментальное исследование влияния наночастиц на процессы испарения жидкостей
Authors: Минаков А.В. , Лобасов А.С. , Пряжников М.И. , Тарасова Л.С. , Василенко Н.Я. , Рудяк В.Я.
Published: December 2019

Evaporation of nanofluids based on distilled water and the silicium and zirconium dioxides, aluminium oxide as well as the diamond has been experimentally studied. The average diameter of the SiO2 nanoparticles was 25 nm, of the ZrO2 nanoparticles was 105 nm, of the Al2O3 nanoparticles was 43 nm and of the diamond nanoparticles was 5 nm. The synchronous thermoanalyser STA 449 С Jupiter was used in the investigation of the evaporation processes. The dependences of the evaporation rate on the volume concentration of the nanoparticles were obtained as a result of the experimental studies. It was shown that as the nanoparticles volume concentration increases the nanofluids evaporation rates monotonically increase too.
Дискретно-капельный режим обледенения цилиндра в поперечном переохлажденном потоке
Authors: Кашеваров А.В. , Стасенко А.Л.
Published: December 2019

It is developed a physicomathematical model of the spatial-temporal evolution of an ice layer growing upon colliding with a solid surface of individual droplets sliding along the surface and solidifying on it, that leads to a two-dimensional roughness (ice hillocks). By the example of a circular cylinder in cross-flow, illustrations of the calculation results for a set of governing parameters typical for the ground-based experiments in an aircooling tunnel are given.
Нелинейная теория обратных и боковых ионно-звуковых волн в плазме с однонаправлено движущимися ионами
Authors: Дубинов А.Е. , Китаев И.Н.
Published: December 2019

Рассмотрены наклонные ионно-звуковые волны в плазме, в которой ионы движутся однонаправлено. В рамках линейной теории выведено двумерное дисперсионное соотношение и показано, что в системе возможны обратные и боковые волны. Развитая в работе нелинейная теория обратных и боковых волн базируется на выводе и анализе псевдопотенциала Сагдеева. Вычислены нелинейные профили обратной и боковой ионно-звуковых волн. Найдено, что профили обратной и боковой волн неотличимы от профиля обычной прямой ионно-звуковой волны. Ключевые слова: плазма, ионно-звуковая волна, обратная волна, боковая волна, псевдопотенциал Сагдеева.
Особенности механизма диффузии в структуре алюминий-кремний при облучении ее поверхности внеэлектродной плазмой высоковольтного газового разряда
Authors: Колпаков В.А. , Кричевский С.В.
Published: December 2019

Features of the diffusion mechanism in Al-Si structure when its surface is irradiated by off-electrode plasma of high-voltage gas discharge at discharge current I=50 mA, accelerating voltage U=4 kV and radiation durations 90 s < t ≤ 600 s are investigated. Model for calculating the concentration profiles of aluminum impurity distribution in silicon plate as a function of Al-Si structure irradiation parameters is proposed; corresponding analytical dependences and also good consent of the theory and experiment are obtained. It is shown that the maximum values of diffusant concentration are reached at a penetration depth of electrons into the semiconductor because of forming of vacancies by them in a layer (х ≈ 0.25 μm). Specified is followed by increase at 2-3 orders of coefficient of thermal diffusion.
Электрохимическая эмиссия при деформировании и разрушении алюминий-магниевого сплава в водной среде
Authors: Шибков А.А. , Гасанов М.Ф. , Золотов А.Е. , Желтов М.А. , Денисов А.А. , Кольцов Р.Ю. , Кочегаров С.С.
Published: December 2019

Spatio-temporal structures of Portevin-Le Chatelier deformation bands at the pre-failure stage, necking and destruction of an aluminum-magnesium alloy, deformable in an aqueous medium, were investigated by a complex of in situ methods, including high-speed video of the surface and an electrochemical emission method. The latter is based on measuring and analyzing jumps in the electrode potential of a deformable metal under the conditions of the manifestation of intermittent deformation. It is established that discrete signals of electrochemical emission in the frequency band of 10 Hz - 10 kHz contain information on the number of deformation bands, the moments of nucleation and stages of their growth, the statistical temporal structure of the bands, etc. A characteristic series of signals at the pre-failure stage is revealed − an electrochemical precursor neck formation and specimen fracture. The connection between the generation of electrochemical emission signals and the localization of plastic deformation and the destruction of an oxide film on an aluminum alloy surface in contact with an aqueous medium is discussed.
Упругость и неупругость объемных кристаллов нитрида галлия
Authors: Гузилова Л.И. , Кардашев Б.К. , Печников А.И. , Николаев В.И.
Published: December 2019

The results of the elastic and microplastic study of GaN single crystals and polycrystalline slabs are presented. Both types of the crystals grown by gas-phase epitaxy in HVPE reactor at deposition on sapphire and ceramic substrates respectively have a specific of structure. It was shown that crystals in slabs are grown in [10-10] perpendicular to substrate but have not primary directions in plane of substrate. The single crystals contains deep V-shaped defects (pits). The experimental results have been analyzed on the basis of existing the theoretical aspects of the influence of dislocations and grain boundaries on the acoustic and mechanical properties of crystals.
Применение магнито-индуцированных переходов в атомах -=SUP=-87-=/SUP=-Rb в когерентных оптических процессах
Authors: Саргсян А. , Вартанян Т.А. , Саркисян Д.
Published: December 2019

The prospects of using Fg = 1-Fe = 3 magnetically induced (MI) transitions of the 87Rb D2 line to form optical resonances in strong magnetic fields up to 3 kG have been experimentally demonstrated. A micrometer-thick cell filled with the Rb atomic vapor is used. A simple and convenient method for determining the magnetic induction with a micron spatial resolution is presented. In this case, there is no need for a reference frequency spectrum. The probability of the MI transition in the magnetic field range of 0.3–2 kG may exceed the probability of a “normal” atomic transition; therefore, it is reasonable to use MI transition at the frequency of “coupling” or probe lasers in Lambda- and V systems to form EIT- resonance (also called dark resonance) in the process of electromagnetically induced transparency (EIT). The formation of dark resonances in strong magnetic fields, when there is a frequency shift of the dark resonance up to ~ 10 GHz, has a number of practical applications. Note that when using “ordinary” atomic transitions in the Lambda- system for magnetic fields of > 1 kG, dark resonances are practically absent.
Формирование трехмерных униполярных импульсов при движении зарядов в вакууме
Authors: Розанов Н.Н.
Published: December 2019

Using the analogy with the electrostatics, in general, the problem of the spatial (three-dimensional) distribution of the electric area of the radiation pulses, which is defined as the time integral of the electric field strength, is resolved in general case when the radiation is generated by the movement of electric charges in a vacuum. The possibility of the formation of unipolar radiation pulses, in which the main polarization component does not change sign during the pulse, is demonstrated.
ИК спектроскопия бидистиллированной и дейтериевой воды в условиях геометрического ограничения в нанопорах стекла
Authors: Быков А.В. , Старокуров Ю.В. , Салецкий А.М.
Published: December 2019

The IR spectra of H2O and D2O were studied under the conditions of geometric restriction in nanoporous glass (PG) matrices with different pore sizes. It was found that with increasing pore size of PG in the region of 2 nm < R < 6 nm there is a decrease in the proportion of water with a strong H bond and an increase in the proportion of water with a weak H - bond of molecules. At R > 6 nm, no change in the structure of geometrically bounded H2O and D2O is observed. While for D2O the effect is smaller (because of the stronger connection of D – O compared to H – O). It has been shown that H2O molecules, which form bonds with the pore surface, are mainly formed from hydrogen bond network molecules whose vibrations are not in phase, while for D2O, such bonds with the surface are formed from hydrogen bond network molecules whose vibrations occur in phase.
Люминесцентные хемосенсорные свойства комплексных соединений Eu(III)
Authors: Петроченкова Н.В. , Мирочник А.Г.
Published: December 2019

Обнаружены люминесцентные хемосенсорные свойства карбоксилатодибензоилметанатов Eu(III). Показано, что взаимодействие комплексов Eu(III) с парами аммиака или метиламина приводит к увеличению интенсивности люминесценции Eu(III). Предложен механизм оптического отклика, связанный с взаимодействием между молекулами аналита и комплекса Eu(III) и блокированием процесса тушения люминесценции. Ключевые слова: европий(III), карбоксилатодибензоилметанаты, люминесценция, хемосенсоры, аммиак, метиламин.
Перераспределение оптической мощности в плечах волноводного Y-разветвителя при локальной внешней засветке подложки ниобата лития
Authors: Парфенов М.В. , Тронев А.В. , Ильичев И.В. , Агрузов П.М. , Шамрай А.В.
Published: December 2019

Optical tuning of the splitting ratio in an integrated optical Y-branch on lithium niobate (LiNbO3) substrate was investigated. Regions of an Y-branch susceptible to the external illumination were defined. Tuning of the splitting ratio in the range of 2% was experimentally demonstrated, which can be effectively used for improvement of Mach-Zehnder modulators extinction ratio.
Адсорбция атомов бария на карбиде кремния
Authors: Давыдов С.Ю. , Посредник О.В.
Published: December 2019

Adsorption of barium atoms on the C- and Si-faces of the 3C- 6H- and 4H-SiC polytypes is considered within the scope of the Haldane-Anderson model. Charge transfer from Ba atoms to the substrate is analyzed with the account of the band and local states of the adsorbed system. The ionic and metallic con-tributions to the adsorption energy are estimated. To improve some obtained results surface molecule model is used.
Зависимость нагрева стабилизированных нержавеющей сталью токоограничивающих элементов на основе ВТСП-лент второго поколения от воздействия тока и параметров теплоотвода на границе с жидким азотом
Authors: Самойленков С.В. , Щербаков В.И. , Кумаров Д.Р. , Горбунова Д.А.
Published: December 2019

Fault current heating of the current limiting modules made of 2G HTS tapes and stabilized with stainless steel was studied. It is demonstrated that the speed of current limiting element heating hardly depends on the degree of the stainless steel stabilization. The ways to improve the heat transfer with the help of the increase of the elements’ surface area were demonstrated with the use of a mathematical model taking into account parameters of heat transfer to liquid nitrogen.
Магнитоэлектроакустическая динамика в стрейнтронной ячейке памяти с произвольным доступом
Authors: Преображенский В.Л. , Крутянский Л.М. , Tiercelin N. , Pernod P.
Published: December 2019

Straintronic principle of nonvolatile magnetoelectric random access memory (MELRAM) draws much attention due to the prospects of ultra-low energy consumption in storage devices. The switching of magnetic moments by pulsed deformation of elastically coupled magnetic and piezoelectric subsystems is accompanied by excitation of acoustic oscillations in the memory cells. Oscillation period in nanoscale cells is comparable with the magnetic moment switching time, which can affect the information recording process. In the present paper the influence of acoustic excitations on the magnetic switching dynamics is studied by numerical modeling with application to a magnetostrictive cell 50×50×400 nm3 on a PMN-PT <011> substrate. Parameters of voltage control pulses that can insure reliable switching of magnetic states of the system are determined.
Эффективные массы и характерные скорости носителей в низкоразмерных структурах A-=SUB=-N-=/SUB=-B-=SUB=-8-N-=/SUB=-
Authors: Давыдов С.Ю.
Published: December 2019

On the bases of simple structural models and earlier proposed theory the esti-mates of energy gap widths, effective masses and character velocities in 2D sheets, nanoribbons and chains for 26 graphene-like AN B8-N. compounds are obtained. It is shown that the decoration of the nanoribbons and chains leads to the cardinal change of their electronic spectrum.
Новый проводящий полимер для литий-ионных аккумуляторов
Authors: Басистая А.О. , Карушев М.П. , Чепурная И.А. , Быков В.А. , Тимонов А.М.
Published: December 2019

Conductive polymer based on a Nickel complex with N4 Schiff base were prepared for the first time, its electrochemical properties and the nature of charge carriers were investigated, and the fundamental possibility of using the polymer as a functional cathode additive in lithium-ion batteries was shown.
Моделирование заряд-разрядных характеристик суперконденсаторов на основе эквивалентной схемы с фиксированными параметрами
Authors: Ильющенков Д.С. , Томасов А.А. , Гуревич С.А.
Published: December 2019

The paper shows the possibility of describing the charge-discharge characteristics of supercapacitors with porous carbon electrodes using a simple equivalent circuit with constant capacitances and resistances. Using numerical simulation, it is shown that there is a relationship between the parameters of the equivalent circuit and the pore structure of the electrode material. The simulation results also indicate the inhomogeneous nature of the charging of various groups of pores of the electrode material in the structure of the supercapacitor.
Influence of Health Literacy on Effects of Patient Rating Websites: Survey Study Using a Hypothetical Situation and Fictitious Doctors
Authors: Schulz Peter Johannes , Rothenfluh Fabia
Published: December 2019

Background

Physician rating websites (PRWs) are a device people use actively and passively, although their objective capabilities are insufficient when it comes to judging the medical performance and qualification of physicians. PRWs are an innovation born of the potential of the Internet and boosted very much by the longstanding policy of improving and encouraging patient participation in medical decision-making. A mismatch is feared between patient motivations to participate and their capabilities of doing so well. Awareness of such a mismatch might contribute to some skepticism of patient-written physician reviews on PRWs.

Objective

We intend to test whether health literacy is able to dampen the effects that a patient-written review of a physician’s performance might have on physician choice.

Methods

An experiment was conducted within a survey interview. Participants were put into a fictitious decision situation in which they had to choose between two physicians on the basis of their profiles on a PRW. One of the physician profiles contained the experimental stimulus in the form of a friendly and a critical written review. The dependent variable was physician choice. An attitude differential, trust differential, and two measures of health literacy, the newest vital sign as an example of a performance-based measure and eHealth Literacy Scale as an example of a perception-based measure, were tested for roles as intermediary variables. Analysis traced the influence of the review tendency on the dependent variables and a possible moderating effect of health literacy on these influences.

Results

Reviews of a physician’s competence and medical skill affected participant choice of a physician. High health literacy dampened these effects only in the case of the perception-based measure and only for the negative review. Correspondingly, the effect of the review tendency appeared to be stronger for the positive review. Attitudes and trust only affected physician choice when included as covariants, considerably increasing the variance explained by regression models.

Conclusions

Findings sustain physician worries that even one negative PRW review can affect patient choice and damage doctors’ reputations. Hopes that health literacy might raise awareness of the poor basis of physician reviews and ratings given by patients have some foundation.
Effectiveness of One-Way Text Messaging on Attendance to Follow-Up Cervical Cancer Screening Among Human Papillomavirus–Positive Tanzanian Women (Connected2Care): Parallel-Group Randomized Controlled Trial
Authors: Linde Ditte S , Andersen Marianne S , Mwaiselage Julius , Manongi Rachel , Kjaer Susanne K , Rasch Vibeke
Published: December 2019

Background

Rapid human papillomavirus (HPV) DNA testing is an emerging cervical cancer screening strategy in resource-limited countries, yet it requires follow-up of women who test HPV positive.

Objective

This study aimed to determine if one-way text messages improved attendance to a 14-month follow-up cervical cancer screening among HPV-positive women.

Methods

This multicenter, parallel-group randomized controlled trial was conducted at 3 hospitals in Tanzania. Eligible participants were aged between 25 and 60 years, had tested positive to a rapid HPV test during a patient-initiated screening, had been informed of their HPV result, and had a private mobile phone with a valid number. Participants were randomly assigned in a 1:1 ratio to the intervention or control group through an incorporated algorithm in the text message system. The intervention group received one-way text messages, and the control group received no text messages. The primary outcome was attendance at a 14-month health provider-initiated follow-up screening. Participants were not blinded, but outcome assessors were. The analysis was based on intention to treat.

Results

Between August 2015 and July 2017, 4080 women were screened for cervical cancer, of which 705 were included in this trial—358 women were allocated to the intervention group, and 347 women were allocated to the control group. Moreover, 16 women were excluded before the analysis because they developed cervical cancer or died (8 from each group). In the intervention group, 24.0% (84/350) women attended their follow-up screening, and in the control group, 23.8% (80/335) women attended their follow-up screening (risk ratio 1.02, 95% CI 0.79-1.33).

Conclusions

Attendance to a health provider-initiated follow-up cervical cancer screening among HPV-positive women was strikingly low, and one-way text messages did not improve the attendance rate. Implementation of rapid HPV testing as a primary screening method at the clinic level entails the challenge of ensuring a proper follow-up of women.

Trial Registration

ClinicalTrials.gov NCT02509702; https://clinicaltrials.gov/ct2/show/NCT02509702.

International Registered Report Identifier (IRRID)

RR2-10.2196/10.2196/15863
Systematic Review of Economic Impact Studies of Artificial Intelligence in Health Care
Authors: Wolff Justus , Pauling Josch , Keck Andreas , Baumbach Jan
Published: December 2019

Background

Positive economic impact is a key decision factor in making the case for or against investing in an artificial intelligence (AI) solution in the health care industry. It is most relevant for the care provider and insurer as well as for the pharmaceutical and medical technology sector. Although the broad economic impact of digital health solutions in general has been assessed many times in literature and the benefit for patients and society has also been analyzed, the specific economic impact of AI in health care has been addressed only sporadically.

Objective

This study aimed to systematically review and summarize the cost-effectiveness studies dedicated to AI in health care and to assess whether they meet the established quality criteria.

Methods

In a first step, the quality criteria for economic impact studies were defined based on the established and adapted criteria schemes for cost impact assessments. In a second step, a systematic literature review based on qualitative and quantitative inclusion and exclusion criteria was conducted to identify relevant publications for an in-depth analysis of the economic impact assessment. In a final step, the quality of the identified economic impact studies was evaluated based on the defined quality criteria for cost-effectiveness studies.

Results

Very few publications have thoroughly addressed the economic impact assessment, and the economic assessment quality of the reviewed publications on AI shows severe methodological deficits. Only 6 out of 66 publications could be included in the second step of the analysis based on the inclusion criteria. Out of these 6 studies, none comprised a methodologically complete cost impact analysis. There are two areas for improvement in future studies. First, the initial investment and operational costs for the AI infrastructure and service need to be included. Second, alternatives to achieve similar impact must be evaluated to provide a comprehensive comparison.

Conclusions

This systematic literature analysis proved that the existing impact assessments show methodological deficits and that upcoming evaluations require more comprehensive economic analyses to enable economic decisions for or against implementing AI technology in health care.

Trial Registration
Perilaku Cuci Tangan Pakai Sabun Studi Kualitatif pada Ibu-Ibu di Kampung Nelayan Muara Angke Jakarta Utara; Studi Kualitatif
Authors: Mustikawati Intan Silviana
Published: December 2019

Washing Hand Behavior Using Soap Among Mothers’ of Underfive Children at Kampung Nelayan Muara Angke, Jakarta Utara. A Qualitative Study Introduction. The result of Joint Monitoring Program (JMP) showed the low prevalence of washing handusing soap at five critical important times.Objective. This study was aimed at gathering indepth information regarding the behavior as well as itssupporting factors and obstacles among mothers of underfive years old children living at a fishing villageMuara Angke, North Jakarta.Methods. The study employed qualitative approached and used purposive technique to got 5 informantsmothers of underfive years old childern, one informant from fishermen group and one puskesmas’ staff. Stepsin analyzing data consist of reducing data, presenting data, dan setting a conclusion. Results. Household mother informants aged 25-35 tahun, have highschool level of education. Family withmonthly income above Rp 3.000.000,00 installed pipewater fasilities. There is no public water fascilitiescould be used for washing hand, The Puskesmas had not conducted a PHBS campaign and public training.Most household informants comprehended what is and benefit of washing hand with soap, diseases could beprovoke by washing hand without soap; some mothers could state the critical important time to wash hand with soap; yet most of them could not state the steps and proper technique of healthy washing hand. Theattitude of informants toward washing hand was positive. Most informants report that they did not alwayswashing hand with soap at 5 critical times recommended and that their acts of washing hand were improper. Conclutions. With positive knowledge on and attitude toward washing hand with soap, the habit of proper washing of mothers could be improve through training and reduce the obstacle.
Perilaku Gizi, Status Gizi, dan Morbiditas Penyakit Infeksi pada Petani dan Buruh Tani Perempuan di Pemalang
Authors: Purwaningtyas Desiani Rizki
Published: December 2019

Kualitas sumber daya manusia (SDM) pertanian merupakan faktor penting dalam keberhasilan pembangunan Indonesia sebagai negara agraris. Pembangunan kualitas SDM pertanian erat kaitannya dengan status gizi dan morbiditas penyakit infeksi yang juga berhubungan dengan perilaku gizi. Oleh karena itu, penelitian ini bertujuan untuk mengkaji perilaku gizi, status gizi, dan morbiditas penyakit infeksi pada petani dan buruh tani padi perempuan di Kecamatan Taman Kabupaten Pemalang, Jawa Tengah. Penelitian ini merupakan studi kuantitatif dengan desain cross-sectional. Subyek pada penelitian ini adalah 97 petani dan buruh tani pada perempuan di Kecamatan Taman Kabupaten Pemalang, Jawa Tengah dengan teknik sampling cluster random sampling. Pengumpulan data melalui pengukuran antropometri dan wawancara dengan menggunakan kuesioner. Uji statistik yang digunakan adalah Chi-Square. Hasil penelitian ini menunjukkan bahwa sebagian besar contoh memiliki pengetahuan gizi yang kurang, sikap gizi positif, praktek gizi dan keamanan pangan sedang, status gizi normal berdasarkan IMT dan LLA, dan morbiditas penyakit infeksi yang rendah. Uji Chi-Square menunjukkan pengetahuan gizi berhubungan nyata dengan status gizi berdasarkan IMT. Morbiditas penyakit infeksi tidak berhubungan nyata dengan status gizi berdasarkan IMT, tetapi berhubungan nyata dengan status gizi berdasarkan lingkar lengan atas (LLA).
EFEKTIFITAS PENGGUNAAN MEDIA PEMBELAJARAN E-LEARNING PADA MATA KULIAH QOWAIDULLUGHOH DI PRODI PAI FAI UHAMKA
Authors: Fitriliza Fitriliza
Published: December 2019

E-learning based learning media is technology based learning where learning material is presented in the form of audio visual such as video. This type of research is an experimental study to determine the effectiveness of learning media that is treated. The study population was all semester II PAI UHAMKA students in South Jakarta. The sample used in this study was taken randomly, namely the PAI classes A, B and C. The data collected included primary data. The results of this study were obtained from primary data. Primary data were obtained from pre-test and post-test results of students. There is an increase in the pre-test and post-test results in the experimental class and a decrease in the pre-test and post-test results in the control class. The average results obtained from the experimental class from 59.36 to 71.76 and in the control class from 72.82 to 70.64. The difference in mean results shows an increase in pre-test and post-test results and it can be concluded that the e-learning-based learning media is effectively used in learning.
A AGENDA 2030 PARA O DESENVOLVIMENTO SUSTENTÁVEL DA ONU E SEUS ATORES: O IMPACTO DO DESENVOLVIMENTO SUSTENTÁVEL NAS RELAÇÕES INTERNACIONAIS.
Authors: De Carvalho Francisco Toniolo
Published: December 2019

O presente artigo visa apresentar o papel dos atores locais nas relações internacionais dentro do contexto de concretização dos 17 objetivos elencados na Agenda 2030 para o Desenvolvimento Sustentável da Organização das Nações Unidas (ONU). Estes são 17 objetivos estão elencados ao longo de um documento formal ratificado pelos 193 Estados membros da ONU. Para isso, o artigo apresenta um breve histórico da construção do conceito de desenvolvimento sustentável bem como uma análise da evolução do conceito de atores internacionais nas principais teorias das relações internacionais com o objetivo de evidenciar qual a função dos atores locais no plano das relações internacionais através do seu papel de implementadores dos objetivos da Agenda 2030. A metodologia utilizada enfatizou a revisão bibliográfica e a análise documental, em especial da Agenda 2030 para o Desenvolvimento Sustentável. A conclusão mostra que a Agenda 2030 eleva o papel das cidades como atores das relações internacionais.
MODELO ECOLÓGICO DE GERAÇÃO DO CRIME: UM CAMINHO PARA A (IN)SEGURANÇA PÚBLICA BRASILEIRA
Authors: Detoni Maurício Paraboni
Published: December 2019

O cenário brasileiro encontra-se notadamente marcado pelo empirismo na condução das políticas de segurança pública, tendo o “medo do crime”, fomentado pelos meios de comunicação, como respectivo balizador, implicando em uma estratégia equivocada de hiperencarceramento. Tais práticas fizeram com que o Brasil alcançasse níveis alarmantes de criminalidade no ano de 2016, onde sete pessoas foram assassinadas por hora e um carro roubado ou furtado por minuto. Como alternativa, apresentou-se o Modelo Ecológico de Geração do Crime, o qual objetiva trabalhar o contexto das comunidades, através de sua dinamicidade social e temporal, considerando a natureza multifacetada da violência, apontando medidas saneadoras para cada nível de influência sobre o comportamento. Em síntese, buscou-se compreender os fatores que levam a ocorrência dos delitos, permitindo adoção de estratégias de prevenção à violência de forma direcionada e aprimorada.
DESAFIOS DA AJUDA HUMANITÁRIA INTERNACIONAL: DIREITO DAS VÍTIMAS E DEVER DOS ESTADOS
Authors: Bijos Leila , Silva Gabriela Mendes
Published: December 2019

A ajuda humanitária decorre do direito internacional humanitário como um dever de solidariedade imposto aos Estados. Destaca-se o contexto histórico dos direitos humanos e as normas internacionais sobre o auxílio humanitário, bem como a atuação da ONU e do CICV junto aos Estados como fortes atores humanitários. O Brasil exerce a cooperação internacional por meio de projetos desenvolvidos em outras nações para reconstruir regiões atingidas por catástrofes naturais, adotando medidas de proteção em favor das vítimas, como a Operação de Paz Centro Africana, que contou com uma coordenadora brasileira. Do ponto de vista do direito internacional, embora a soberania dos Estados seja um princípio basilar nas relações internacionais, sua aplicação irrestrita não pode servir como supedâneo para a negativa de ajuda humanitária por parte dos Estados, objeto desta pesquisa qualitativa.