bluuebunny/crossref_metadata_2025 huggingface dataset:
É possível alcançarmos a blindagem coronária em dentes tratados endodonticamente? – revisão de literatura Is it possible to achieve coronary shielding in endodontically treated teeth? – literature review
Authors: Guimarães Victoria Burmann Da Silva , Vieira Carolina Clasen , Souza Nadia Ferreira de , Santos Luciane Geanini Pena dos , De Almeida-Gomes Fabio , Pappen Fernanda Geraldo
Published: August 2019

Introduction: The coronary shield, known as the intra-orifice barrier, is defined as a placement of a restorative material at the entrance of the root canal orifice after 3mm of gutta-percha and aiming to increase the resistance of the tooth to the fracture in addition to preventing coronary infiltration. Objective: to report and discuss the existing data in the dental literature regarding the materials available to perform the intra-orifice barrier in endodontically treated teethand to indicate if the desired coronary shield is really achievable. Literature review: The materials analyzed were composite resin, glass ionomer cement (CIV), zinc oxide based materials, silver amalgam and mineral trioxide aggregate (MTA). Results: composites of resin and bulkfill / flow in their results when compared with other materials like MTA. Silver amalgam, zinc oxide-based materials, and CIV do not result in terms of intra-orifice barrier. MTA was favorable in relation to microleakage, but did not reinforce a root structure. Conclusion: No material restorer is able to completely protect the infiltrations.However, as conventional composite resins and bulk-fill flow are the materials with the best properties associated with satisfactory results, however, the need for scientific studies comparing the materials used as an intra-orifice barrier.
Dental extraction in patients with HIV/AIDS: report of two cases
Authors: Sloniak Mariane Cristina , Todero Sara Regina Barancelli , Lyra Luciana Aparecida , Fontana Elenara Beatriz , Batista Paulo Sérgio , De Lima Antonio Adilson Soares
Published: August 2019

Introduction and objective: The oral health of patients with HIV infection is often compromised by caries and periodontal disease. Thus, many patients need to undergo oral surgical procedures. Case report: This article describes two cases of patients with HIV infection who had undergone exodontia due to prosthetic indications. Both patients had been hospitalized for treatment of respiratory complications from HIV infection and were referred for dental treatment. In the first case, the adult patient had generally good oral health. However, the treatment plan for the installation of a removable prosthesis required the removal of tooth 38 since it was fairly inclined to the mesial. The second patient had poor oral conditions due to advanced periodontal disease. Thus, all upper arch teeth were removed in a single session followed by the installationof an immediate total prosthesis. No postoperative complications were recorded and the healing process occurred without incident for both patients. Dental treatment of patients with asymptomatic HIV infection does not differ from that performed for any other patient in practice. Nevertheless, patients in advanced stages of disease may require special treatment and an individual treatment plan must be developed for even routine procedures. Conclusion: The dental careof these individuals often requires more rigorous clinical follow-up for maintaining oral health. The performance of dental surgery in patients with HIV infection does not require technical modifications, but does require a complete anamnesis.
Modes of Action and Clinical Efficacy of Particulate Hydroxyapatite in Preventive Oral Health Care − State of the Art
Authors: Enax Joachim , Fabritius Helge-Otto , Fabritius-Vilpoux Kathia , Amaechi Bennett T. , Meyer Frederic
Published: August 2019

Background:

Particulate Hydroxyapatite (HAP; Ca5(PO4)3(OH)) is being increasingly used as multifunctional active ingredient in oral care. Due to its high similarity to human enamel crystallites, it is considered as a biomimetic agent.

Objective:

The aim of this narrative review is to identify the modes of action of HAP in preventive oral health care based on published studies. The outcomes are expected to improve the understanding of the effects of HAP in the oral cavity and to provide a knowledge base for future research in the field of biomimetic oral care.

Methods:

The data analyzed and discussed are primarily based on selected published scientific studies and reviews fromin vivo,in situ, andin vitrostudies on HAP in the field of preventive oral health care. The databases Cochrane Library, EBSCO, PubMed and SciFinder were used for literature search.

Results:

We identified different modes of action of HAP in the oral cavity. They are mainly based on (I) Physical principles (e.g. attachment of HAP-particles to the tooth surface and cleaning properties), (II) Bio-chemical principles (e.g. source of calcium and phosphate ions under acidic conditions and formation of an interface between HAP-particles and the enamel), and (III) Biological principles (e.g. HAP-particles interacting with microorganisms).

Conclusion:

Although more mechanistic studies are needed, published data show that HAP has multiple modes of action in the oral cavity. Since the effects address a wide range of oral health problems, HAP is a biomimetic agent with a broad range of applications in preventive oral health care.
A Case of Anti-Glomerular Basement Membrane Crescentic Glomerulonephritis in a Female Renal Allograft Recipient with Unknown Native Disease: Retrospective Molecular Confirmation of Alport Disease
Authors: Vankalakunti Mahesha , Parekh Ashish , B. Thimmegowda Anil K. , Sreedhara Rajanna
Published: August 2019

Anti-Glomerular Basement Membrane (anti-GBM) crescentic glomerulonephritis developing in an allograft is a rare phenomenon. A patient with Alport syndrome receiving a renal transplant is at risk of developing anti-GBM glomerulonephritis, due to the absence of normal COL4α3, COL4α4 and COL4α5 trimer of the collagen network. Two unique challenges with planning kidney transplant in such a patient include- ideal donor selection; and risk of developing anti-GBM nephritis. We report a case of post-transplant anti-GBM crescentic glomerulonephritis in a female recipient with unknown native kidney disease who was diagnosed with Alport disease when she presented with hematuria and proteinuria nearly 2 years postrenal transplant. Allograft outcome in our case was unfavourable, patient reaching end-stage kidney disease within 6-month of diagnosis. The patient remains on continuous ambulatory peritoneal dialysis and currently active on the deceased donor transplant waiting list.
Acute Kidney Injury as a Rare Complication of Prallethrin Poisoning (“All-Out”) in a Child
Authors: KS Anjana , CN Raghunath , C Arvind
Published: August 2019

Pyrethroids are widely used as commercial and domestic insecticides due to their high effectiveness and low toxicity in humans and in medicine for the topical treatment of scabies and head lice. Prallethrin is a structural derivative of naturally occurring pyrethrin and active ingredient in liquid mosquito repellents. Acute human poisoning from exposure or ingestion of pyrethroids is rare because of poor dermal absorption and rapid metabolism with little tissue accumulation. Here we present a case of accidental Prallethrin poisoning(“ALL –OUT”, a liquid mosquito repellent) in a five year old child who had immediate complication as hypovolemic shock with aspiration pneumonia and delayed complications like acute kidney injury, with elevated liver enzymes, requiring renal replacement therapy and had an uneventful recovery.
Prevalence and Predictors of Ocular Complications in Obstructive Sleep Apnea Patients: A Cross-sectional Case-control Study
Authors: Morsy Nesreen E. , Amani Badawi E , Magda Ahmad A , Nabil Awadalla J , Pandi-Perumal Seithikurippu R. , BaHammam Ahmed S. , Spence David Warren , Lundmark Per O. , Zaki Nevin FW
Published: August 2019

Purpose:

This study sought to identify the magnitude and the possible risk factors of ocular complications in patients with Obstructive Sleep Apnea (OSA).

Methods:

A hospital-based cross-sectional study with a nested case-control design was conducted. Qualifying study subjects were patients who had been diagnosed with moderate to severe OSA (AHI index of ≥ 5, n=80), and control subjects (n=20) who had an AHI index of ≤ 5 (“normal”). Study participants were recruited from Mansoura University Hospital’s Sleep Disorders Clinic in Mansoura, Egypt.Selected subjects were assessed for ocular complications at Mansoura Univerity Hospital Ophthalmic Center, (Mansoura), Egypt. An ophthalmic history was recorded, and opthalmic testing was carried out. The testing included unaided visual acuity measurement, refraction, best-corrected visual acuity measurement, slit lamp bio-microscopic evaluation of the anterior segment and anterior segment photography, dilated fundus examination, intraocular pressure measurement, fundus photo, and fluorescein angiography, and visual field assessment. Various tests of OSA symptoms were also monitored, including the AHI, lowest oxygen concentrations and desaturation index plus the overall severity index. .

Results:

It was found that OSA patients n=28 (35%), n=24 (30%), n=4 (5%) had senile cataract, normal tension glaucoma, and retinal ischemia, respectively, with an overall prevalence of 45%. Additionally, the OSA group had seven times greater risk (OR=7.36, 95%CI: 1.6-33.86) of vision-threatening disorders compared to the controls. OSA patients were observed to be at a greater risk of senile cataract 28 (35%), normal tension glaucoma 24 (30%), retinal ischemia 4 (5%) and conjunctival hyperemia and dry eye (OR=3.77, 95%CI: 1.02-13.95, OR=4.36, 95%CI: 1.26-17.08). Also, multivariate logistic regression analysis testing showed that the lowest oxygen saturation index was the only significant predictor negatively associated with vision-threatening disorders (OR=0.84, 95%CI: 0.75-0.93).

Conclusion:

The risk of vision-threatening and non-threatening ocular disorders is higher among OSA cases. The lowest oxygen saturation index was the only significant predictor of vision-threatening disorders. These findings support the recommendation that a full ophthalmic examination should be carried out on patients with confirmed OSA.
Design, Simulation and Analysis of Perforated RF MEMS Capacitive Shunt Switch
Authors: Karumuri Srinivasa Rao , Chand Ch. Gopi , Guha Koushik , Maity Niladri P. , Maity Reshmi , Maity Santanu , Prathyusha Dinnipati , Kondavitee Girija S.
Published: August 2019

Objective:

This paper presents the design and simulation of double bridge-type capacitive
RF MEMS switch by using FEM Tool.

Methods:

It is mainly concentrated on a low pull-in voltage, capacitance, and RF analysis. The beam is
considered as a gold metal having the length of 595 μm along with the 1μm thickness and the dielectric
is taken as Silicon nitride (Si3N4) by using Ashby’s method. The non-uniform meandering technique
and perforations are used to reduce the pull-in voltage, by changing different beam thickness, air
gap and materials.

Results:

The pull-in voltage of the proposed RF MEMS switch is 1.2 V. The scattering parameters are
simulated by using Ansoft HFSS software. The simulation results of S-parameters such as return loss,
insertion losses are, -19.27 dB and -0.20dB. The switch having good isolation is -63.94 dB at 8 GHz.

Conclusion:

The overall switch is designed with different beam thickness, various gap, and different
materials to identify the best performance of the switch for low-frequency applications i.e X-bands.
Soil Physico-chemical Properties and Microbial Activity in Ecological Restoration Red Soil Region of Subtropical Southern China
Authors: Qiming Liu , Yao Li , Jian Ge , Yupei Jiao , Yinglan Cao
Published: August 2019

Background and Objective:

The objectives of this study were to investigate the
effects of land use and land cover transitions on soil physico-chemical properties, and to
comparatively study soil microbial activity in ecological restoration red soil region of subtropical
southern China.

Methods:

A field experiment was conducted in a natural forest, four ecological restoration
forests and an adjacent farmland. Based on the stable carbon isotopes of SOM, the δ13C values
data confirm the 6 sites for soil sampling in this study were the ideal location for studying
land cover transitions. The data showed that the soil physical, chemical and biological
properties under the natural forest were significantly healthier than under cultivation. During
forest re-growth on farmland, the ecological restoration time were 34, 26, 15 and 10a, respectively,
and the SOM content, C/N, soil colony counts, soil basal respiration and soil enzyme
activities significantly increased and approached values of virgin forest.

Results & Conclusion:

In general, the SOM content and soil microbial activities in ecological
restoration forest were usually intermediate between the natural forest and farmland, and
there was significant (P< 0.05) difference between forest and farmland. The results indicated
that, because of appropriate climatic conditions of red soil subtropical southern China, the
dynamic balance of soil ecosystems can be reconstructed and restored in several years or
decades.
THE PERSUASIVE DA’WAH COMMUNICATION OF KH ASYHARI MARZUQI AND ITS IMPLICATIONS IN MODERN LIFE
Authors: PRASETYO ANTON
Published: August 2019

This research was aimed to find out one of the Da’wah activists, namely KH Asyhari Marzuqi in delivering Da’wah material. Was it using persuasive words or just the opposite, coercive that causes fear? By using persuasive communication theory and other related theories, researchers analyzed the data using qualitative research methods. The approach used in this study was a case study. Data analysis model was with explanation development. Qualitative research is identical to a critical and interpretative research. After conducting the research, the researcher obtained the result that KH Asyhari Marzuqi was a figure of Da’i who was able to preach persuasively. As a communicator, he meets the standards for persuasive da’i. Meanwhile, the message delivered was also a language of invitation that is soft and without coercion. Penelitian ini bertujuan untuk mengetahui salah satu aktivis dakwah, yakni KH. Asyhari Marzuqi, dalam menyampaikan materi dakwah. Apakah menggunakan kata-kata persuasif atau justru sebaliknya, koersif yang menimbulkan ketakutan? Dengan menggunakan teori komunikasi persuasif dan teori terkait lainnya, peneliti menganalisis data dengan menggunakan metode penelitian kualitatif. Pendekatan yang digunakan dalam penelitian ini adalah studi kasus. Model analisa data dengan pengembangan penjelasan. Penelitian kualitatif identik dengan sebuah penelitian yang bersifat kritis dan interpretatif. Setelah melakukan penelitian, peneliti mendapatkan hasil bahwa KH Asyhari Marzuqi merupakan sosok da’i yang mampu berdakwah secara persuasif. Sebagai seorang komunikator, ia memenuhi standar untuk dikatakan da’i persuasif. Sementara, pesan yang disampaikan juga berupa bahasa ajakan yang bersifat lembut dan tanpa paksaan.
XXIII Международный симпозиум Нанофизика и наноэлектроника", Нижний Новгород, 11-14 марта 2019 г. Гетероструктуры с GaAs/GaP-квантовыми ямами, выращенные на Si-подложках
Authors: Абрамкин Д.С. , Петрушков М.О. , Путято М.А. , Семягин Б.Р. , Емельянов Е.А. , Преображенский В.В. , Гутаковский А.К. , Шамирзаев Т.С.
Published: August 2019

AbstractMolecular-beam epitaxy is used to produce GaP/Si hybrid substrates that allow the growth of highly efficient light-emitting heterostructures with GaAs/GaP quantum wells. Despite the relatively high concentration of nonradiative-recombination centers in GaP/Si layers, GaAs/GaP quantum-well heterostructures grown on GaP/Si hybrid substrates are highly competitive in terms of efficiency and temperature stability of luminescence to similar heterostructures grown on lattice-matched GaP substrates.
Использование двухзеркальных двумерных брэгговских резонаторов в полупроводниковых гетеролазерах
Authors: Барышев В.Р. , Гинзбург Н.С. , Заславский В.Ю. , Малкин А.М.
Published: August 2019

AbstractA double-mirror two-dimensional Bragg resonator design based on structures of planar geometry, which is typical of both band-to-band and quantum-cascade heterolasers, is suggested. The distinguishing feature of this design is the coupling between longitudinal and transverse energy flows in two-dimensional Bragg mirrors. The eigenmode spectrum of the structure is described. It is shown that the proposed design can be used for synchronizing radiation emitted in lasers and laser arrays.
Исследование пороговой энергии оже-рекомбинации в волноводных структурах с квантовыми ямами HgTe/Cd-=SUB=-0.7-=/SUB=-Hg-=SUB=-0.3-=/SUB=-Te в области 14 мкм
Authors: Уточкин В.В. , Алёшкин В.Я. , Дубинов А.А. , Гавриленко В.И. , Куликов Н.С. , Фадеев М.А. , Румянцев В.В. , Михайлов Н.Н. , Дворецкий С.А. , Морозов С.В.
Published: August 2019

AbstractStimulated emission from a heterostructure with Hg_0 . 903Cd_0 . 097Te/Cd_0 . 7Hg_0 . 3Te quantum wells, placed in a waveguide layer of wide-gap CdHgTe, is obtained at wavelengths of 14–11 μm and a temperatures of 18–80 K. The threshold Auger recombination energy is calculated for a set of heterostructures with quantum wells of pure HgTe with a band gap of 90 meV (wavelength 14 μm). The possibility of fabricating lasers operating at 14 μm and working temperatures higher than that of liquid nitrogen is demonstrated.
Получение второй гармоники излучения субтерагерцовых гиротронов при удвоении частоты в InP : Fe и ее использование для магнитоспектроскопии полупроводниковых структур
Authors: Румянцев В.В. , Маремьянин К.В. , Фокин А.П. , Дубинов А.А. , Уточкин В.В. , Глявин М.Ю. , Михайлов Н.Н. , Дворецкий С.А. , Морозов С.В. , Гавриленко В.И.
Published: August 2019

AbstractThe possibility of obtaining intense terahertz radiation due to second-order lattice nonlinearity in indium-phosphide crystals doped with iron is discussed. As a source of radiation, subterahertz gyrotrons are considered. It is shown that the efficiency of frequency doubling can reach 3%, which opens up the possibility for developing a new generation of terahertz radiation sources. The possibility of applying second-harmonic radiation for the magnetospectroscopy of semiconductor structures with quasi-Dirac dispersion is demonstrated.
Спиновые состояния электронов в двойной квантовой точке в двумерном топологическом изоляторе со спин-орбитальным взаимодействием
Authors: Суханов А.А. , Сабликов В.А.
Published: August 2019

AbstractThe spectra and spin structure of the states of two interacting electrons localized in a double quantum dot in a two-dimensional topological insulator with spin-orbit interaction are investigated. It is found that, in such a system, a singlet-triplet transition in the ground state without a magnetic field can be implemented. Spin-orbit interaction leads to the splitting of polarized triplet levels and to anticrossing, when one of them crosses the singlet.
Усиленная фотолюминесценция сильно легированных слоев Ge/Si(001) n-типа проводимости
Authors: Прохоров Д.С. , Шенгуров В.Г. , Денисов С.А. , Филатов Д.О. , Здоровейщев А.В. , Чалков В.Ю. , Зайцев А.В. , Ведь М.В. , Дорохин М.В. , Байдакова Н.А.
Published: August 2019

AbstractThe photoluminescence spectra of epitaxial n ^+-Ge:P/Si(001) structures are studied. The structures are grown by hot-wire chemical vapor deposition and doped with phosphorus to the maximum electron concentration 1 × 10^20 cm^–3 from a source based on thermally decomposed GaP. The effects of the doping level and rapid thermal annealing of n ^+-Ge:P layers on the photoluminescence spectra are studied. It is demonstrated that the epitaxial n ^+-Ge:P/Si(001) layers grown by hot-wire chemical vapor deposition are promising for application as active regions of light-emitting optoelectronic devices operating in the near-infrared spectral region.
Одно- и двухкубитные гейты: техника Раби и одиночные униполярные импульсы
Authors: Бастракова М.В. , Кленов Н.В. , Сатанин А.М.
Published: August 2019

In this paper we discuss methods for controlling the states of interacting superconducting flux qubits using energy-efficient devices of rapid single flux quantum logic (the resonators with Josephson nonlinearity). A comparative analysis for one - and two-qubit quantum logical operations performed both within the traditional control technique using Rabi pulses and using picosecond single unipolar magnetic field pulses is carried out. It is shown that by optimizing the shape and parameters of unipolar control pulses (associated, for example, with the propagation of fluxons in the transmission lines) it is possible to implement all the basic operations with the fidelity of more than 97 %. The efficiency of the developed technique was demonstrated for programming a two-bit quantum processor that implements the simplest Deutsch-Joza algorithm.
Избыточная проводимость анизотропных неоднородных сверхпроводников при температуре выше критической
Authors: Могилюк Т.И. , Григорьев П.Д. , Кешарпу К.К. , Колесников И.А. , Синченко А.А. , Фролов А.В. , Орлов А.П.
Published: August 2019

AbstractThe theoretical model of conductivity of a layered anisotropic normal metal containing small superconducting ellipsoidal granules with an arbitrary ratio of semiaxes is developed. Calculation data obtained under two simple approximations (self-consistent and Maxwell) are compared. The results may be applied in the analysis of the observed temperature dependence of the conductivity anisotropy in various anisotropic superconductors with the superconducting phase emerging in the form of isolated superconducting granules. The temperature dependence of the electric resistance along and across the conducting layers above and near the superconducting transition temperature is studied experimentally for bridge structures of a varying thickness. It is demonstrated that this resistance and even the effective superconducting transition temperature depend strongly on the bridge thickness (i.e., the number of layers through which the electric current flows). Note that significant differences were observed only for the resistance across the layers.
Воздействие поля зонда магнитно-силового микроскопа на скирмионное состояние в модифицированной пленке Co/Pt с перпендикулярной анизотропией
Authors: Миронов В.Л. , Горев Р.В. , Ермолаева О.Л. , Гусев Н.С. , Петров Ю.В.
Published: August 2019

We present the experimental magnetization reversal of artificial magnetic skyrmions in a Co/Pt multilayer film with perpendicular magnetization by a magnetic force microscope probe. The sample was a Co/Pt film containing an array of cylindrical regions with reduced anisotropy, which were modified by a focused He+ ion beam. The magnetic state of the sample was monitored by magnetic force microscopy. The local magnetization reversal was performed by the field of magnetic force microscope probe passing over the sample at low height. The effects of magnetostatic interaction between the probe field and skyrmion magnetization in these structures are investigated by micromagnetic simulations.
Распространение спиновых волн в микроструктурах на основе пленок железоиттриевого граната, декорированных ферромагнитным металлом
Authors: Хивинцев Ю.В. , Дудко Г.М. , Сахаров В.К. , Никулин Ю.В. , Филимонов Ю.А.
Published: August 2019

The propagation of spin waves in an yttrium iron garnet film decorated by nickel film microstructures was experimentally and theoretically studied. It is shown that one can control the spin wave damping and form the spin wave beams by choosing geometry of the nickel microstructures.
Проводимость манганитных пленок под действием напряженности, вызванной деформацией подложки
Authors: Овсянников Г.А. , Шайхулов Т.А. , Шахунов В.А. , Климов А.А. , Преображенский В.Л. , Tiercelin N. , Pernod P.
Published: August 2019

The results of study of the electron transport properties of La0.7Ba0.3MnO3 (LBMO) strained manganite epitaxial thin films are presented. The films with thickness of 40–100 nm were made using laser ablation at a temperature of T = 700–800 ° C in an at-mosphere of pure oxygen of 0.3–1 mBar. To create a strain, we used ferroelectric sub-strates (011) 0.79PbMg1/3Nb2/3O3-0.21PbTiO3 (PMN-PT) with Curie temperature of 150 C and with high piezoelectric constants. By applying voltage to the PMN-PT substrate, the effect of the ferroelectric polarization and the piezoelectric stress on the electric parameters of the LBMO films was investigated.
Магнитные и резонансные свойства пленок в системе Fe-Bi
Authors: Патрин Г.С. , Яковчук В.Ю. , Яриков С.А. , Шиян Я.Г. , Фурдык В.П.
Published: August 2019

AbstractFilm structures in the Fe–Bi system have been studied experimentally. The magnetic state of the two-layer structures is shown by electron magnetic resonance to be dependent on the order of depositing magnetic and nonmagnetic layers. The three-layer structures demonstrate the effect of the exchange bias, the value of which is dependent on the bismuth interlayer thickness.
Роль границы раздела водная среда--твердое тело в передаче возбуждения кремния светом
Authors: Тетельбаум Д.И. , Туловчиков В.С. , Менделева Ю.А. , Курильчик Е.В. , Никольская А.А. , Степанов А.В.
Published: August 2019

The effect has been established consisting in the change of the properties of silicon samples under irradiation by the light of another silicon sample located as far as several centimeters from the first one. The effect is observed when both samples are in contact with the “fluoroplastic – water solution of NaCl” or “Na-containing glass – water” systems. The results are interpreted basing on the previously suggested model assuming the excitation hypersound waves in the “silicon – native oxide” system and on the hypothesis about the propagation of the waves along the “water environment – solid” interface stimulated by the existence of Na+-(H2O)n clusters.
Влияние электрического и магнитного полей на угловое распределение интенсивности света, рассеянного холодным атомным ансамблем
Authors: Ларионов Н.В. , Соколов И.М.
Published: August 2019

We theoretically investigated the angle distribution of light scattered on the cold, optically depth atomic ensemble placed in homogeneous static electric or magnetic field. The different orders of scattered light which are partial contributions into the total intensity for given field polarized component are analyzed. It is shown that the static field by means of induced ensemble anisotropy leads to modification both the angle distribution of total intensity and the relative contribution of different scattered orders of light into the total intensity.
Измерение расстояния между излучателем и приемником в беспроводном канале связи при помощи сверхширокополосных хаотических радиоимпульсов
Authors: Ефремова Е.В. , Дмитриев А.С. , Кузьмин Л.В.
Published: August 2019

The possibility of wireless distance measurement using UWB chaotic radio pulses based on statistical signal analysis is considered. The results of experimental approbation of the proposed approach are given.
Сквозное концентрационное профилирование гетероструктурных солнечных элементов
Authors: Яковлев Г.Е. , Няпшаев И.А. , Шахрай И.С. , Андроников Д.А. , Зубков В.И. , Теруков Е.И.
Published: August 2019

Heterojunction solar cells based on single-crystal silicon were studied by means of electrochemical capacitance-voltage profiling. The features of electrochemical capacitance-voltage profiling of modern multilayer heterojunction solar cells are analyzed. The free charge carriers depth distribution profiles over the entire thickness of the samples, including, for the first time, in the layers of conducting indium tin oxide, are obtained.
Метастабильные отрывные структуры при турбулентном обтекании круглых и овальных лунок
Authors: Гувернюк С.В. , Чулюнин А.Ю.
Published: August 2019

At present paper, mechanisms which determine turbulent separated flow structures inside oval-trench dimples are described. In cases of short trenches, includes the semi-spherical dimple, three regimes exist: symmetrical and two mono-core asymmetrical. It should be noted, asymmetrical regimes are metastable, while the symmetrical regime is unstable. Therefore, for short dimples, an actual flow pattern has an unsteady nature, which is characterized by switching between two mono-cores vortex structures. With an increase in the length of dimples, the symmetrical regime becomes a stable and an actual flow pattern has a quasi-steady character. Further increase of dimple's length produces more complex flow topology with persisting of the quasi-steady nature.
Влияние на корреляционные характеристики переключений между разными хаотическими режимами
Authors: Павлова О.Н. , Павлов А.Н.
Published: August 2019

The problem of diagnosing the dynamics of nonlinear systems from experimental data during switching between oscillatory modes is considered. The influence of the errors of computing the correlation characteristics caused by the presence of data fragments corresponding to different dynamic modes on the interpretation of the results is investigated. It has been shown that switching between the operating modes has a much stronger effect on the diagnosis of anti-correlated dynamics.
Моделирование системы определения движения технологической платформы по данным позиционирования ГЛОНАСС и измерениям ньютонометров
Authors: Девятисильный А.С. , Шурыгин А.В.
Published: August 2019

This article presents the models for the reconstruction of linear and angular motion parameters for on-board embedded GLONASS systems with two-position data reception and a three-component newtonometer unit as measures of specific non-gravitational forces. An essential element of the construction of a mathematical model is the developed stable procedure of multiple numerical differentiation, independent of the magnitude of the discretization step of the problem under conditions of limited accuracy of calculations and measurements. The results of a numerical experiment verifying the initial physical and mathematical representations for the case of hypersonic motion are presented.
International Financial US Linkages: Networks Theory and MS-VAR Analyses
Authors: Sosa Miriam , Ortiz Edgar
Published: August 2019

This paper aims to examine the impact of the Global Financial Crisis on portfolio investment flows, as well as on stock market activity. Network Theory is used to analyze structural changes of foreign portfolio investment flows (FPI) to a sample of 13 developed countries and 6 emerging Latin American countries. Additionally, using daily data from 2003 to 2015, the dynamics of returns are analyzed to test whether the US market influenced these markets or vice versa; univariate (MS-AR) and multivariate (MS-VAR) regime-switching models are used. The evidence confirms the presence of two different regimes, low volatility and a high volatility for all markets. Findings suggest strengthening local productive and financial institutions in order to anchor FPI. The MS-(V)AR study is limited to stock markets from the Americas and Europe. Previous literature has not applied the innovative and complementary methodologies employed here to analyze financial crisis impacts on FPI flows. We conclude that US financial markets keep a close financial relationship with the most important European and American countries’ stock markets, both by receiving and delivering FPI, and in addition influencing the behavior of stock indexes.
Assessment of the Efficacy, Safety, and Effectiveness of Weight Control and Obesity Management Mobile Health Interventions: Systematic Review
Authors: Puigdomenech Puig Elisa , Robles Noemí , Saigí-Rubió Francesc , Zamora Alberto , Moharra Montse , Paluzie Guillermo , Balfegó Mariona , Cuatrecasas Cambra Guillem , Garcia-Lorda Pilar , Carrion Carme
Published: August 2019

Background

The use of apps to tackle overweight and obesity by tracking physical and dietary patterns and providing recommendations and motivation strategies to achieve personalized goals has increased over recent years. However, evidence of the efficacy, effectiveness, and safety of these apps is severely lacking.

Objective

The aim of this study was to identify efficacy, safety, and effectiveness criteria used to assess weight control, overweight, and obesity management in mobile health (mHealth) interventions through a systematic review.

Methods

PubMed, PsycINFO, Scopus, UK Trial Database, ClinicalTrials.gov, and the Cochrane Library were surveyed up to May 2018. All types of clinical studies were considered. A total of 2 independent reviewers assessed quality using Scottish Intercollegiate Guidelines Network (SIGN) criteria. Ratings were used to provide an overall score for each study (low, moderate, or high). Data were synthesized in evidence tables.

Results

From 233 potentially relevant publications, only 28 studies were included. Of these, 13 (46%) were randomized control trials, 11 were single-arm studies (39%), 3 were nonrandomized controlled trials (11%), and 1 study was a cluster randomized trial (4%). The studies were classified as low (15), high (7), and moderate (6) quality according to SIGN criteria. All studies focused on efficacy, with only 1 trial mentioning safety and another 1 effectiveness. In 11 studies, the apps were used as stand-alone interventions, the others were multicomponent studies that included other tools for support such as sensors or websites. The main management tool included in the apps was feedback messaging (24), followed by goal-setting mechanisms (20) and self-monitoring (19). The majority of studies took weight or body mass index loss as the main outcome (22) followed by changes in physical activity (14) and diet (12). Regarding outputs, usability, adherence, and engagement (17) were the most reported, followed by satisfaction (7) and acceptability (4).

Conclusions

There is a remarkable heterogeneity among these studies and the majority have methodological limitations that leave considerable room for improvement. Further research is required to identify all relevant criteria for assessing the efficacy of mHealth interventions in the management of overweight and obesity.

Trial Registration

PROSPERO CRD42017056761; https://tinyurl.com/y2zhxtjx
A Protocol-Driven, Bedside Digital Conversational Agent to Support Nurse Teams and Mitigate Risks of Hospitalization in Older Adults: Case Control Pre-Post Study
Authors: Bott Nicholas , Wexler Sharon , Drury Lin , Pollak Chava , Wang Victor , Scher Kathleen , Narducci Sharon
Published: August 2019

Background

Hospitalized older adults often experience isolation and disorientation while receiving care, placing them at risk for many inpatient complications, including loneliness, depression, delirium, and falls. Embodied conversational agents (ECAs) are technological entities that can interact with people through spoken conversation. Some ECAs are also relational agents, which build and maintain socioemotional relationships with people across multiple interactions. This study utilized a novel form of relational ECA, provided by Care Coach (care.coach, inc): an animated animal avatar on a tablet device, monitored and controlled by live health advocates. The ECA implemented algorithm-based clinical protocols for hospitalized older adults, such as reorienting patients to mitigate delirium risk, eliciting toileting needs to prevent falls, and engaging patients in social interaction to facilitate social engagement. Previous pilot studies of the Care Coach avatar have demonstrated the ECA’s usability and efficacy in home-dwelling older adults. Further study among hospitalized older adults in a larger experimental trial is needed to demonstrate its effectiveness.

Objective

The aim of the study was to examine the effect of a human-in-the-loop, protocol-driven relational ECA on loneliness, depression, delirium, and falls among diverse hospitalized older adults.

Methods

This was a clinical trial of 95 adults over the age of 65 years, hospitalized at an inner-city community hospital. Intervention participants received an avatar for the duration of their hospital stay; participants on a control unit received a daily 15-min visit from a nursing student. Measures of loneliness (3-item University of California, Los Angeles Loneliness Scale), depression (15-item Geriatric Depression Scale), and delirium (confusion assessment method) were administered upon study enrollment and before discharge.

Results

Participants who received the avatar during hospitalization had lower frequency of delirium at discharge (P<.001), reported fewer symptoms of loneliness (P=.01), and experienced fewer falls than control participants. There were no significant differences in self-reported depressive symptoms.

Conclusions

The study findings validate the use of human-in-the-loop, relational ECAs among diverse hospitalized older adults.
Exploring the Time Trend of Stress Levels While Using the Crowdsensing Mobile Health Platform, TrackYourStress, and the Influence of Perceived Stress Reactivity: Ecological Momentary Assessment Pilot Study
Authors: Pryss Rüdiger , John Dennis , Schlee Winfried , Schlotz Wolff , Schobel Johannes , Kraft Robin , Spiliopoulou Myra , Langguth Berthold , Reichert Manfred , O'Rourke Teresa , Peters Henning , Pieh Christoph , Lahmann Claas , Probst Thomas
Published: August 2019

Background

The mobile phone app, TrackYourStress (TYS), is a new crowdsensing mobile health platform for ecological momentary assessments of perceived stress levels.

Objective

In this pilot study, we aimed to investigate the time trend of stress levels while using TYS for the entire population being studied and whether the individuals’ perceived stress reactivity moderates stress level changes while using TYS.

Methods

Using TYS, stress levels were measured repeatedly with the 4-item version of the Perceived Stress Scale (PSS-4), and perceived stress reactivity was measured once with the Perceived Stress Reactivity Scale (PSRS). A total of 78 nonclinical participants, who provided 1 PSRS assessment and at least 4 repeated PSS-4 measurements, were included in this pilot study. Linear multilevel models were used to analyze the time trend of stress levels and interactions with perceived stress reactivity.

Results

Across the whole sample, stress levels did not change while using TYS (P=.83). Except for one subscale of the PSRS, interindividual differences in perceived stress reactivity did not influence the trajectories of stress levels. However, participants with higher scores on the PSRS subscale reactivity to failure showed a stronger increase of stress levels while using TYS than participants with lower scores (P=.04).

Conclusions

TYS tracks the stress levels in daily life, and most of the results showed that stress levels do not change while using TYS. Controlled trials are necessary to evaluate whether it is specifically TYS or any other influence that worsens the stress levels of participants with higher reactivity to failure.
La fuerza de los diablos en la ritualidad teenek de la Huasteca potosina
Authors: Aguirre Mendoza Imelda
Published: August 2019

Los diablos o judas son danzantes que aparecen durante la Semana Santa en Tamapatz –comunidad ubicada al suroeste de Aquismón, en la Huasteca Potosina– vestidos de seres conceptualizados como tal, ya que comparten con Diablo gran cantidad de particularidades y en su personalidad reúnen elementos del mundo teenek y del mundo mestizo. Ambos se asocian porque participan en los mismos espacios, gustos culinarios, y valores éticos, pero ¿por qué ocurre esto?, ¿qué es en realidad lo que permite relacionar a Diablo con los diablos? El intercambio de fuerza, planteada en términos amplios como energía vital que brinda a los existentes el poder actuar en el mundo, nos ofrece una posible respuesta. En este trabajo se discuten las propiedades de la fuerza que ostentan los diablos considerando como punto de partida las preguntas: ¿De dónde procede dicha fuerza? ¿Cuáles son sus características? ¿Cómo se logra y cuáles son los efectos de un intercambio de fuerza entre los diablos y Diablo?Abstract: The devils or judas are dancers who appear during Holy Week in Tamapatz –a community located Southeast of Aquismón, in the Huasteca, San Luis Potosí. They are dressed as conceptualized beings that share many characteristics with the Devil, and combine elements of the Teenek world and the Mestizo world in their personalities. They all help each other in their association, because they participate in the same places and share culinary preferences and ethical values. But why does this happen? What is it that allows the Devil to relate to the devils? The exchange of strength, understood as vital energy that gives the extant beings the power of acting in the world, offers us a possible answer. In this paper we analyze the attributes of the devils’ strength, beginning with the following questions: where does that strength come from? What are its characteristics? How is the exchange between the devils and the Devil achieved and what are its effects?Résumé : Les diables ou « Judas » sont des danseurs qui officient à Tamapatz –village situé au sud-est d’Aquismón, dans la Huasteca Potosina – durant la Semaine sainte. Déguisés en êtres conceptualisés, ils partagent avec le Diable un grand nombre de traits particuliers et leur personnalité associe des éléments du monde teenek et du monde métisse. Si ces deux aspects se renforcent l’un l’autre dans les mêmes espaces, dans la cuisine et les valeurs éthiques, la question du pourquoi n’en demeure pas moins : qu’est-ce qui, en réalité, permet d’associer le Diable aux diables ? L’échange de force, considérée comme une énergie vitale qui apporte aux vivants le pouvoir d’agir sur le monde pourrait être une réponse à cette question. Cette étude s’interroge également sur les qualités de la force que revendiquent les diables en partant des questions suivantes : d’où vient-elle ? Quelles en sont les propriétés ? Comment l’acquiert-on et quels sont les effets de cet échange entre les diables et le Diable ?
Imaginarios interrumpidos. Ensayo sobre el patrimonio perdido de Monterrey
Authors: Mendirichaga Dalzell José Roberto
Published: August 2019

En Imaginarios ininterrumpidos […], el arquitecto especializado en el patrimonio Juan Manuel Casas hace un recuento de aquellos edificios que han sufrido desaparición o daño; señala los antecedentes a esta preocupación; analiza la Ley Federal de Monumentos; lista el patrimonio arquitectónico original; denuncia el desprecio por lo vernáculo; advierte los efectos de la modernidad; y aporta una nómina de constructores y arquitectos que durante los siglos XIX al XXI han edificado Monterrey y la región. El autor concluye con la mención de algunos de los criterios internacionales sobre la materia, que deben observarse en México y el Noreste.
Direito, sustentabilidade e a premissa tecnológica como ampliação de seus fundamentos
Authors: Real Ferrer Gabriel , Cruz Paulo Márcio
Published: August 2019

Sustentabilidade é apresentada como um objetivo que deve ser alcançado em três áreas: social, ambiental e econômica, áreas que são apresentadas como dimensões. Na análise dessas dimensões normalmente não é considerado, ou pelo menos não suficientemente, o fator tecnológico que, no entanto, é fundamental, tanto para alcançar o sucesso em cada uma das áreas como para garantir a própria viabilidade da sustentabilidade. Uma má gestão nesta área pode pôr em perigo o progresso da civilização. No presente artigo destaca-se a transversalidade desta nova dimensão, discute-se os riscos e oportunidades que a ciência e a tecnologia supõem para o resto das dimensões e se identificam as linhas onde deve-se agir para garantir a sua contribuição para o objetivo de atingir a sustentabilidade em todos os seus aspectos. No final, a necessária discussão sobre o Direito Transnacional como elemento de controle dos poderes criados no ambiente globalizado atual.
Paradoxo do Direito Vigente de Ross
Authors: Cabral Dafne Reichel , Cabral Flávio Garcia
Published: August 2019

Trata-se de paper que possui como objetivos precípuos o escrutínio do trabalho do jurista dinamarquês Alf Ross, abordando com maior precisão a sua análise do Direito, em especial da vigência do ordenamento jurídico, demonstrando, assim, como, de forma peculiar, a vigência do ordenamento em Ross constitui um verdadeiro paradoxo com a estabilidade social de determinada sociedade.
Uma abordagem constitucional sobre a Justiça Restaurativa no âmbito criminal preconizada na Resolução nº 125/2010 do Conselho Nacional de Justiça
Authors: Paulo Alexandre Ribas de , Numazawa Gabriela Natacha Alvares
Published: August 2019

O presente estudo visa analisar a validade da Resolução nº 125/2010, do Conselho Nacional de Justiça, sob a ótica da competência constitucional e, também, verificar quais seriam as consequências da aplicação de acordos restaurativos no exercício da jurisdição penal no Brasil. Num primeiro momento comenta-se sobre a Justiça Restaurativa, seus postulados internacionais e sua inserção no Ordenamento Jurídico brasileiro por meio da Resolução nº 125/2010. Em seguida trata-se dos direitos fundamentais e princípios constitucionais pertinentes à reserva legal no âmbito penal e à competência normativa do Conselho Nacional de Justiça. Por fim, verificam-se as consequências da aplicação prática da Resolução nº 125/2010, do CNJ, no processo penal, concluindo-se que a mesma, por ser norma que não atende os ditames constitucionais, deve ser preterida quando da apreciação de causas penais no Brasil.
Víctor Tau Anzoátegui na historiografia jurídica “indiana” (hispano-colonial)
Authors: Abásolo Ezequiel
Published: August 2019

Víctor Tau Anzoátegui in the "Indian” Legal Historiography (Spanish-colonial era)  Ezequiel Abásolo ResumoNesse texto se busca compartilhar um exame panorâmico e crítico a respeito do que as ideias e as contribuições de Víctor Tau Anzoátegui implicam para a historiografia jurídica “indiana” (hispano-colonial), tentando delinear os aspectos centrais de seu pensamento historiográfico, enquanto prestigioso Mestre, cujos estudos suscitaram na América e na Europa, e desde já por décadas, a atenção de seus colegas, junto com muitos outros interessados em recriar o passado hispano-americano. Com isso, busca-se elucidar as linhas de seus critérios histórico-jurídicos ao perseguir um objetivo bem concreto: ajudar a cobrir, ainda que parcialmente, o déficit autorreflexivo que aflige à história jurídica “indiana”, disciplina que, a despeito de sua relativa debilidade teórica, suscita em nossos dias um significativo interesse acadêmico, como que se nutrindo, de forma constante e sustentada, de um formidável e variado contingente de aportes monográficos. Palavras-chave: Víctor Tau Anzoátegui. Historiografia jurídica “indiana”. História hispano-colonial. AbstractThis paper aims to share a panoramic and critical examination about what the ideas and contributions of Víctor Tau Anzoátegui imply to the "Indian" Legal Historiography (Spanish-colonial), trying to outline the key aspects of his historiographical thought, being a prestigious Master whose studies raised in America and Europe, for decades already, the attention of his colleagues, along with many others interested in recreating the Spanish American past. Thus, it seeks to clarify the lines of his historical and legal criteria to pursue a very concrete goal: to help cover, even if partially, the self-reflexive deficit afflicting the "Indian " Legal History, a discipline that, despite its relative theoretical weakness, raises today a significant academic interest, for it is nurturing by, with a constant and sustained manner, a formidable and varied contingent of monographic contributions. Keywords: Víctor Tau Anzoátegui. "Indian" Legal Historiography. History of Spanish-colonial era.