bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reabilitação oral com implantes dentários como fator de risco para osteonecrose medicamentosa dos maxilares
Authors: Oliveira da Silva Maria Luiza , Helyda Myrelle Rodrigues dos Santos  , Renato de Andrade Barbosa da Silva  , David Albert Dodoo  , Rafaella Andrade Souza  , João Bezerra Lyra Neto  , Zeno Oliveira Guedes  , Marcela Correia de Azevedo Farias  , Gabrieli Maria Barbosa Beserra  , Luiz Fernando Alves de Lima  , Eugenia Leal de Figueiredo  , Matheus Andrade Rodrigues  
Published: September 2024

Introdução: A reabilitação oral com implantes dentários é amplamente utilizada para restaurar a função e estética em pacientes com perda dentária. Contudo, o uso prolongado de medicamentos antirreabsortivos, como bisfosfonatos, pode causar osteonecrose medicamentosa dos maxilares (ONM), uma condição grave que afeta a cicatrização óssea após cirurgias de implante. Objetivo: O objetivo deste estudo é analisar se a reabilitação oral com implantes dentários é um fator de risco para o desenvolvimento da osteonecrose medicamentosa dos maxilares.Métodos: Foi realizada uma revisão integrativa da literatura utilizando as diretrizes PRISMA. A pesquisa foi conduzida nas bases de dados PubMed, BVS e SciELO, com a combinação de descritores “Bisphosphonate-Associated Osteonecrosis of the Jaw”, “Dental Implants” e “Surgery, Oral”, combinados aos operadores booleanos “AND” e “OR”. Foram incluídos artigos de 2019 a 2024, disponíveis em texto completo e em inglês ou português, que respondessem à pergunta norteadora. Estudos envolvendo animais ou revisões de literatura foram excluídos. Resultados e discussão: A busca inicial identificou 125 estudos, dos quais 9 artigos foram incluídos para análise final. Os artigos analisados demonstram que pacientes em uso de medicamentos antirreabsortivos apresentam maior risco de desenvolver ONM após a instalação de implantes dentários. A redução da vascularização e a inibição da remodelação óssea contribuem para esse risco. O planejamento cirúrgico cuidadoso e o acompanhamento pós-operatório rigoroso são essenciais para minimizar as complicações. Conclusão: Implantes dentários podem aumentar o risco de ONM em pacientes que utilizam medicamentos antirreabsortivos. Estratégias preventivas e monitoramento rigoroso são cruciais para evitar o desenvolvimento dessa condição.
SOFTWARE AND HARDWARE COMPLEX FOR THE DETECTION AND IDENTIFICATION OF UNMANNED AERIAL VEHICLES
Authors: Мартынюк В.Д. , Рыбников Д.А. , Сукачев А.И. , Сукачева Е.А. 
Published: September 2024

представлена разработка программно-аппаратного комплекса обнаружения и идентификации беспилотных летательных аппаратов (БПЛА). Парадигма использования таких устройств внедряется все больше и больше во все сферы общественной жизнедеятельности. Именно поэтому такие программно-аппаратные комплексы необходимы для эффективного выявления угрозы, которую может предоставить БПЛА. В статье рассмотрен акустический метод обнаружения дронов, а именно разработка микрофонной решетки на основе высокочувствительных цифровых микрофонов модели INMP441, в сочетании с использованием искусственного интеллекта. Применение систем на основе акустического метода обнаружения позволяет выявлять БПЛА даже в режиме радиомолчания, причем с большей скоростью обнаружения в отличии от радиолокационного и радиотехнического методов контроля. В статье также рассмотрены плюсы и минусы акустического метода контроля. Для разработки системы использовались: ПЛИС (программируемая логическая интегральная схема) модели ZYNQ 7010, микрофонная решетка, фреймворк Qt и сетевой протокол TCP/IP. В заключении было выявлено, что данный программно-аппаратный комплекс позволяет решить проблему эффективного обнаружения БПЛА, а также способен внедряться в уже имеющиеся крупные охранные системы как отдельный модуль
the article presents the development of a software and hardware complex for the detection and identification of unmanned aerial vehicles (UAVs). The paradigm of using such devises is being introduced more and more into all spheres of public life. That is why such software and hardware complexes are necessary to effectively identify the threat that a UAV can provide. The article considers an acoustic method of drone detection, namely the development of a microphone array based on highly sensitive digital microphones of the INMP441 model, combined with the use of artificial intelligence. The use of systems based on the acoustic detection method makes it possible to detect UAVs even in radio silence mode, and with a higher detection rate, unlike radar and radio engineering control methods. The article also discusses the pros and cons of the acoustic control method. To develop the system, we used FPGA (programmable logic integrated circuit) of the ZYNQ 7010 model, microphone array, Qt framework and TCP/IP network protocol. In conclusion, it was revealed that this software and hardware complex allows solving the problem of effective detection of UAVs and is also capable of being integrated into existing large security systems as a separate module
MATCHING SYSTEM OF SHORTENED SHORTWAVE ANTENNA
Authors: Бирюков О.И. , Гилев Н.А. , Филимонова Ю.О. , Лайко К.А. 
Published: September 2024

рассмотрен способ согласования укороченного варианта штыревой вертикальной несимметричной вибраторной антенны, работающей в коротковолновом диапазоне. Длина излучающей части укороченной антенны составляет 0,1 длины волны. Исследования происходили в относительной полосе частот 20% в диапазоне от 3,6 до 4,4 МГц. Согласование проводилось на частоте 4 МГц. Измерены активная и реактивная части входного сопротивления антенны. Для построения математической модели проведена аппроксимация входного сопротивления. Аппроксимация активной части волнового сопротивления описана с помощью функции косинуса на пьедестале, реактивная часть, имеющая ёмкостной характер — с помощью гиперболической функции. В согласующей системе рассмотрены варианты использования отрезков коаксиального кабеля с различным волновым сопротивлением. В качестве согласующего устройства использовались трансформирующие свойства коаксиального кабеля и подключаемый к нему параллельно короткозамкнутый шлейф. Согласование проводилось с волновым сопротивлением фидера и приемо-передающего устройства 50 Ом. Проведена оптимизация исходных стандартных волновых сопротивлений коаксиального кабеля 50 и 75 Ом по критериям минимальной длины и максимальной полосы рабочих частот антенны. Построены графики коэффициента стоячей волны для различных вариантов согласующих систем. Проведён сравнительный анализ результатов аппроксимации
the method of matching of the shortened version of the pin vertical asymmetrical vibrator antenna operating in the short-wave range is considered. The length of the radiating part of the shortened antenna is 0.1 wavelength. The study took place in a relative frequency bandwidth of 20 per cent between 3.6 and 4.4 MHz. The matching was carried out at 4 MHz. The active and reactive parts of the antenna input impedance were measured. An approximation of the input impedance was carried out to build a mathematical model. The approximation of the active part of the wave impedance is described using the pedestal cosine function, the reactive part, which has capacitive character, is described using the hyperbolic function. The use of coaxial cable sections with different wave impedance has been considered in the matching system. The transforming properties of the coaxial cable and a short-circuited loop connected to it in parallel were used as a matching device. The matching was carried out with the wave impedance of the feeder and the receiving and transmitting device of 50 ohms. Optimisation of the initial standard wave impedances of 50- and 75-Ohm coaxial cable was carried out according to the criteria of minimum length and maximum antenna operating frequency bandwidth. Graphs of the standing wave coefficient for different variants of matching systems are plotted. A comparative analysis of the approximation results is carried out.
Presencia de Mycoplasma SP. en Zarigueyas comunes (didelphis marsupialis) en Parque Zoológico Nacional La Aurora, Guatemala.
Authors: Gaitan Monroy Juan Pablo 
Published: September 2024

La investigación estimó la captura de 20 zarigüeyas, sin importar rango de edad o sexo, situadas en el parque Zoológico Nacional La Aurora en Ciudad de Guatemala. El objetivo fue determinar la presencia de Mycoplasma sp. en las mismas, a través del método de frotis sanguíneo. Investigaciones recientes han destacado la importancia de los micoplasmas hemotrópicos como patógenos zoonóticos emergentes y subrayado la necesidad de una detección y diagnóstico precisos, así como de una mayor comprensión de su epidemiología y su impacto en la salud de los animales y posiblemente de los seres humanos. Así como han destacado la importancia de investigar el papel de los vectores en la transmisión de estas infecciones en la fauna silvestre debido a que esta enfermedad ha estado asociada a una alta morbilidad y baja mortalidad en mamíferos de zoológicos en todo el mundo. Se registraron un total de 8 casos positivos a la prueba de frotis sanguíneo, de los cuales, 5 fueron hembras (62,00%) y 3 machos (37,05%). Se concluye que la microscopia debe ser acompañada de otras pruebas con el fin de obtener diagnósticos más certeros y conocer la especie de Mycoplasma que afecta a los huéspedes.
Palabras clave: Guatemala, Hemoparasitos, Mycoplasma, Zarigueyas, Zoológico.
Protección Laboral y Bienestar en el Trabajo: Un Análisis Exhaustivo Basado en Regulaciones, Procedimientos y la Sostenibilidad en Ecuador
Authors: Barriga Gavilanes Mónica , Sánchez Ortega Jenny Amparito , Sulbarán Brito Migdalia Janeth , Zamora Salazar Leslie Gabriela 
Published: September 2024

Este artículo planeó como objetivo analizar los componentes esenciales de la seguridad en el trabajo y la SO, fundamentándose en las regulaciones, procedimientos y la perspectiva de sustentabilidad en Ecuador, a través del examen de diversas investigaciones localizadas en bases de datos relevantes durante la última década. La investigación está bajo el enfoque cualitativo, con un nivel documental, esta consiste en una evaluación sistemática descriptiva de la literatura, conforme a las directrices establecidas en la declaración PRISMA. Los hallazgos indicaron que, a pesar de que Ecuador posee un marco normativo relacionado con la seguridad laboral y la salud en el trabajo, basado en las leyes, sin embargo, no se observa una política de Estado sólida y sostenida para el monitoreo y supervisión continua del entorno de trabajo, condiciones laborales y la seguridad ocupacional. Se concluye que se requiere actualizar los protocolos actuales y de crear vías de comunicación con organizaciones tanto empresariales como sindicales, con el objetivo de lograr, de manera conjunta y consensuada, una mejora significativa de las condiciones laborales para los trabajadores ecuatorianos.
REVIEW : OF SUPERDISINTEGRANT INGREDIENTS IN FAST DISINTEGRANT TABLET TABLET PREPARATIONS
Authors: Fahmansyah Lingga Pratama , Agus S  , Suparman  
Published: September 2024

This study aimed to evaluate the potential of synthetic and natural disintegrating agents in fast-disintegrating tablet (FDT) formulations. The methodology used includes a comprehensive literature review on the definition, characteristics, working mechanisms, and applications of super disintegrants in the manufacture of FDTs. The results of the study showed that super disintegrants play an important role in facilitating rapid disintegration of tablets. Synthetic super disintegrants such as crospovidone, croscarmellose sodium, and sodium starch glycolate have the advantage of lower concentrations and better intragranular effectiveness. On the other hand, natural superdisintegrants such as mucilages, gums, and polysaccharides from plants have easy availability, affordable prices, non-toxic properties, and biologically acceptable characteristics. In conclusion, the selection of an appropriate super disintegrant, whether synthetic or natural, is a key factor in effective FDT formulation and providing rapid disintegration. The combination of using super disintegrants at the granulation stage (intragranular) and before compression (extragranular) can produce better performance compared to a single method.
Keywords: FDT, Super disintegrant, Synthetic, Natural
Building Our Families: Navigating Barriers in 2SLGBTQ+ Family Building Through Doula Supports
Authors: Zisman Laine Halpern 
Published: September 2024

Queer and transgender individuals often encounter barriers when attempting to build their families, Beginning by identifying barriers that 2SLGBTQ+ people face in their fertility and reproductive journeys -- including limited access to information, inadequate diversity in donor gametes, and minority stress -- this article looks to the role of doulas in mitigating challenges by providing critical and tailored support, educational resources, and support and advocacy in navigating medical systems. Using a reproductive justice and intersectional framework, the article highlights the need for inclusive care practices that address the historical and ongoing exclusion of marginalized 2SLGBTQ+ communities. It underscores the importance of improved training for healthcare providers and systemic changes to ensure equitable family-building experiences for 2SLGBTQ+ individuals. By integrating community supports and peer advocacy, the article proposes strategies to enhance both the physical and mental health outcomes of 2SLGBTQ+ intended parents and their families. It calls for a comprehensive approach that combines professional training, systemic reform, and community-based initiatives to create a more inclusive and supportive environment for family-building among 2SLGBTQ+ individuals.
Brightening and Fading in the Youngest Galactic Supernova Remnant G1.9+0.3: 13 Years of Monitoring with the Chandra X-Ray Observatory
Authors: Borkowski Kazimierz J. , Reynolds Stephen P. , Green David A. , Petre Robert 
Published: September 2024

Abstract
We report 13 years of Chandra monitoring of the youngest Galactic supernova remnant G1.9+0.3, the only remnant known to be increasing in brightness. We confirm the spatially integrated rate of flux increase of (1.2 ± 0.2)% yr−1 (1–7 keV), but find large spatial variations, from −3% yr−1 to +7% yr−1, over length scales as small as 10″ or smaller. We observe relatively little change in spectral slope, though one region shows significant hardening as it brightens by 1% yr−1. Such rates of change can be accommodated by any of several explanations, including steady blast-wave evolution, expansion or compression of discrete plasma blobs, magnetic turbulence, or variations in magnetic-field aspect angle. Our results do not constrain the mean magnetic-field strength, but a self-consistent picture can be produced in which the maximum particle energies are limited by the remnant age (applying both to electrons and to ions) to about 20 TeV, and the remnant-averaged magnetic-field strength is about 30 μG. The deceleration parameter m (average shock radius varying as t

m
) is about 0.7, consistent with estimates from overall expansion dynamics and confirming an explosion date of about 1900 CE. Shock-efficiency factors ϵ

e
and ϵ

B
(fractions of shock energy in relativistic electrons and magnetic field) are 0.003 and 0.0002 in this picture. However, the large range of rates of brightness change indicates that such a global model is oversimplified. Temporal variations of photon index, expected to be small but measurable with longer time baselines, can discriminate among possible models.
MOSEL Survey: Spatially Offset Lyman-continuum Emission in a New Emitter at z = 3.088 Can Explain the Low Number Density of Observed LyC Leakers
Authors: Gupta Anshu , Trott Cathryn M. , Jaiswar Ravi , Ryan-Weber E. V. , Bunker Andrew J. , Acharyya Ayan , Cameron Alex J. , Forrest Ben , Kacprzak Glenn G. , Nanayakkara Themiya , Tran Kim-Vy , Chokshi Aman 
Published: September 2024

Abstract
We present the discovery of a unique Lyman-continuum (LyC) emitter at z = 3.088. The LyC emission was detected using the Hubble Space Telescope WFC3/UVIS F336W filter, covering a rest-frame wavelength range of 760–900 Å. The peak signal-to-noise ratio of LyC emission is 3.9 in an r = 0.″24 aperture and is spatially offset by 0.″29 ± 0.″04 (∼2.2 ± 0.3 kpc) from the peak of rest-UV emission (F606W). By combining imaging and spectroscopic data from the James Webb Space Telescope (JWST) JADES, FRESCO, and JEMS surveys, along with VLT/MUSE data from the MXDF survey, we estimate that the probability of random alignment with an interloper galaxy causing the LyC emission is less than 6 × 10−5. The interstellar medium (ISM) conditions in the galaxy are similar to those in other LyC emitters at high redshift (

12
+
log
(
O

/

H
)
=

7.79

−
0.05

+
0.06

,

log
U
=
−

3.27

−
0.12

+
0.14

, O32 = 0.63 ± 0.03), although the single-peaked Lyα profile and lack of rest-UV emission lines suggest an optically thick ISM. Our observations indicate that LyC photons are leaking through a narrow cone of optically thin neutral ISM, most likely created by a past merger (as evidenced by medium-band F210M and F182M images). Using the constraints on escape fraction from individual leakers and a simple model, we estimate that the opening half-angle of ionization cones can be as small as 16° (2% ionized fraction) to reproduce some of the theoretical constraints on the average escape fraction for galaxies. The narrow opening angle required can explain the low number density of confirmed LyC leakers.
Why Could a Newborn Active Region Produce Coronal Mass Ejections?
Authors: Yang Hanzhao , Liu Lijuan 
Published: September 2024

Abstract
Solar active regions (ARs) are the main sources of flares and coronal mass ejections (CMEs). NOAA AR 12089, which emerged on 2014 June 10, produced two C-class flares accompanied by CMEs within 5 hr after its emergence. When producing the two eruptive flares, the total unsigned magnetic flux (ΦAR) and magnetic free energy (E

f
) of the AR are much smaller than the common CME-producing ARs. Why can this extremely small AR produce eruptive flares so early? We compare the AR magnetic environment for the eruptive flares to that for the largest confined flare from the AR. In addition to the ΦAR and E

f
, we calculate the ratio between the mean characteristic twist parameter (α
FPIL) within the flaring polarity inversion line (FPIL) region and ΦAR, a parameter considering both background magnetic field constraint and nonpotentiality of the core region, for the three flares. We find higher α
FPIL/ΦAR values during the eruptive flares than during the confined flare. Furthermore, we compute the decay index along the polarity inversion line, revealing values of 1.69, 3.45, and 0.98 before the two eruptive and the confined flares, respectively. Finally, nonlinear force-free field extrapolation indicates that a flux rope was repeatedly formed along the FPIL before eruptive flares, which ejected out and produced CMEs. No flux rope was found before the confined flare. Our research suggests that even a newly emerged, extremely small AR can produce eruptive flares if it has sufficiently weak background field constraint and strong nonpotentiality in the core region.
A Precessing Stellar Disk Model for Superorbital Modulations of the Gamma-Ray Binary LS I+61° 303
Authors: Chen A. M. , Takata J. , Yu Y. W. 
Published: September 2024

Abstract
Gamma-ray binary LS I+61° 303 consists of a neutron star orbiting around a Be star with a period of P
orb ≃ 26.5 days. Apart from orbital modulations, the binary shows long-term flux variations with a superorbital period of

P

sup

≃
4.6

y

r

as seen in nearly all wavelengths. The origin of this superorbital modulation is still not well understood. Under the pulsar wind–stellar outflow interaction scenario, we propose that the superorbital modulations of LS I+61° 303 could be caused by the precession of the Be disk. Assuming X-rays arise from synchrotron radiation of the intrabinary shock, we develop an analytical model to calculate expected flux modulations over the orbital and superorbital phases. The asymmetric two-peak profiles in orbital light curves and sinusoidal-like long-term modulations are reproduced under the precessing disk scenario. The observed orbital phase drifting of the X-ray peak and our fitting of long-term X-ray data indicate that the neutron star is likely orbiting around the star with a small eccentricity and periastron phase around Φp ∼ 0.6. We compare the Corbet diagrams of LS I+61° 303 with other Be/X-ray binaries, and the linear correlation in the

P

sup

–

P

orb

diagram suggests that the precession of the Be disk in LS I+61° 303 is induced by the tidal torque of its neutron star companion.
The Dustiest Galactic S Stars: Mid-infrared Spectra from SOFIA/FORCAST
Authors: Kraemer Kathleen E. , Sloan G. C. , Ramirez Ramses M. 
Published: September 2024

Abstract
We present spectra of 12 of the reddest, and hence dustiest, S stars in the Milky Way, observed with the FORCAST grisms on SOFIA. S stars are asymptotic giant branch (AGB) stars with C/O ∼ 1, so their molecular and dust chemistries are dominated by neither O nor C, often leading to atypical spectral features from their molecules and dust grains. All of the stars in our sample have strong dust emission features at 10–11 μm, but the shape of the feature in most of the stars differs from the shapes commonly observed in either oxygen-rich or carbon-rich AGB stars. Two stars also show the 13 μm feature associated with crystalline alumina. Two have a water absorption band at ∼6.5–7.5 μm, and a third has a tentative detection, but only one of these three has the more common SiO absorption band at 7.5 μm. Three others show a red 6.3 μm emission feature from complex hydrocarbons consistent with “Class C” objects, and in a fourth it appears at 6.37 μm, redder than even the standard Class C hydrocarbon feature. Class C spectra typically indicate complex hydrocarbons that have been less processed by UV radiation, resulting in more aliphatic bonds relative to aromatic bonds. None of the S stars show a strong 11.3 μm hydrocarbon feature, which is also consistent with the presence of aliphatic hydrocarbons.