bluuebunny/crossref_metadata_2025 huggingface dataset:
Airborne four channel fiber coupled vector laser Doppler anemometer system
Authors: Kliebisch Oliver , Damm Matthias , Mahnke Peter
Published: August 2023

Using an airborne vector laser Doppler anemometer (LDA) to measure the air flow outside of the boundary layer of an airplane is a promising optical technique. Measurement of the primary flight data like true airspeed, the angle of attack, and the angle of sideslip can be directly derived from the measured wind vector. We developed an experimental system with interchangeable telescopes to study the change in the LDA sensitivity and signal rate, depending on the focusing of the measurement beam. The system has a real-time-capable field programmable gate array data acquisition system, which also can record full data dumps for off-line analysis. This paper presents the first results of an airborne measurement campaign. The true airspeed is measured with an residual error of 1% compared to the five-hole flow sensor. The angle of sideslip and the angle of attack show a standard deviation of the residual error of 0.6∘ for the angle of sideslip and 0.2∘ for the angle of attack.
Intersecting of circular apertures to measure integer and fractional topological charge of vortex beams
Authors: Daryabi Negin , Sabouri Saeed Ghavami
Published: August 2023

Diffraction patterns of optical vortex beams (VBs) by differently shaped apertures are used to determine their topological charge (TC). In this paper, we show by simulations and experiments that diffraction of a Laguerre-Gaussian (LG) beam by intersecting circular apertures can be used to reveal the TC. The presented aperture structure has the advantage of the measurement of fractional TC in addition to the integer, sensitivity to the sign of TC, and low sensitivity to adjusting apertures. Accordingly, in addition to the integer TC up to 8, the fractional TC is measured with a step of 0.1 by two intersecting circular apertures (TICA). By examining a wide range of similarity criteria between the diffraction pattern of the fractional TC and the pattern of the lower integer TC, three metrics for measuring the fractional TC are found. Furthermore, the determination of integer TC up to 6 for three intersecting circular apertures (THICA) is demonstrated.
Experimental demonstration of a multimode single photon transducer
Authors: Clemmen Stéphane
Published: August 2023

I demonstrate experimentally a "multimode single photon transducer" that generates classical light pulses that are copies of incoming single photons. The setup relies on well established time-frequency processing of light~\cite{van2006ultrafast}. It consists in a spectral measurement of the incoming photons using a time gated single photon spectrometer followed by the carving of a pulse into a broadband continuum.
This device thus bypass the fundamental limitation of optical amplifiers that cannot operate deterministically at the single quantum level. After presenting a first ever experimental demonstration, the limitations are discussed along with possible extensions of this work. This type of device can find applications for the frequency manipulation of quantum light fields.
Limited view correction in low-optical-NA photoacoustic microscopy
Authors: Liu Wei , Shen Hao , Liu Xiangru , Cui Qi , Sun Yunxu , Li Fenfang , Xu Xiaochuan , Liu Zhengjun
Published: August 2023

Photoacoustic microscope (PAM) with a low optical NA suffers from limited view along the optical axis, due to the coherent cancellation of acoustic pressure waves after being excited with a smoothly focused beam. Using larger-NA (NA>0.3) objectives can readily overcome the limited-view problem, while the consequences are the shallow working distance and time-consuming depth scanning for large-volume imaging. Instead, we report an off-axis oblique detection strategy that is compatible with low-optical-NA PAM for turning up the optical-axis structures. Comprehensive photoacoustic modeling and ex vivo phantom imaging experiments are conducted to validate the efficacy of correcting the limited view. Proof-of-concept experiment results show that the visibility of optical-axis structures can be greatly enhanced (>18 dB) by making the detection angle off the optical axis larger than 45 degrees, strongly demonstrating off-axis oblique detection is a simple and cost-effective alternative method to solve the limited-view problems in low-optical-NA PAMs.
Ethnic minority women’s empowerment in agriculture in the central region of Viet Nam
Authors: Le Tung Thanh , Phan Son Van , Nguyen Duong Thanh , Hoang Huong Thi , Vu Lam Trong , Le Tuan Anh , Nguyen Tuyet Thi
Published: August 2023

Gender inequality and women’s empowerment are two closely related issues. While the gender inequality index has been assessed by different studies, that of women’s empowerment remained limited. In the present work, we attempted to evaluate the women’s empowerment index by comparing it with the male partner’s empowerment index in the same household. We used the Women’s Empowerment in Agriculture Index (WEAI) as a framework for reference. A questionnaire was designed to interview 300 people including both men and women in the same ethnic minority household in central Vietnam. The difference in the empowerment level between men and women was assessed through five-component empowerment indicators: agricultural participation, resource ownership, financial control, social organizations participation, and time usage. The results showed that up to 70% of women were disempowered compared to only 15% of men. The binary logistic model revealed the age at first marriage, the level of children’s education, education level, distance to the nearest urban area, and the number of children were associated with women’s empowerment; whereas age, income, and the level of gender awareness did not show any correlation.
Experimental analysis on impact load of flash flood against a passable structure
Authors: Wang Sen , Zheng Hanwu , Huang Er , Liu Xingnian , Luo Ming
Published: August 2023

Flash flood in mountainous regions have caused significant damage worldwide in recent years, impacting and destroying structures. The impact load of flash flood is the key factor in the process of destruction. In this study five existing models for impact pressure calculation were compared and analyzed based on experimental data. What’s important, combining two existing models, a new model considering both hydrodynamic and hydrostatic pressure was proposed. The results showed that the relative error of empirical coefficient was lowered from 16.2% to 7.09% in the condition of Froude number less than 2, and lowered from 10.7% to 9.9% when the Froude number exceeded 2 in the new calculating model. Besides, the distribution of fluid impact and the maximum pressure point against a passable obstacle was discussed. The findings of this research could provide ideas for structure design to withstand the flooding impact.
Health facility availability and readiness for family planning and maternity and neonatal care services in Nepal: Analysis of cross-sectional survey data
Authors: Rai Pramila , Ackerman Ilana N. , O’Connor Denise A. , Gorelik Alexandra , Buchbinder Rachelle
Published: August 2023

Objectives

To determine the availability and readiness of health facilities to provide family planning, antenatal care and basic emergency obstetric and newborn care in Nepal in 2021. Secondary objectives were to identify progress since 2015 and factors associated with readiness.

Method

This is a secondary analysis of cross-sectional Nepal Health Facility Survey (NHFS) data collected in 2015 and 2021. The main outcome measures were availability and readiness of family planning, antenatal care, and basic emergency obstetric and newborn care services. Readiness indices were calculated using WHO-recommended service availability and readiness assessment (SARA) methods (score range 0 to 100%, with 100% indicating facilities are fully prepared to provide a specific service). We used independent t-tests to compare readiness indices in 2015 and 2021. Factors potentially associated with readiness (rurality setting, ecological region, managing authority, management meeting, quality assurance activities, and external supervision) were explored using multivariable linear regression.

Results

There were 940 and 1565 eligible health facilities in the 2015 and 2021 surveys, respectively. Nearly all health facilities provided family planning (2015: n = 919 (97.8%); 2021: n = 1530 (97.8%)) and antenatal care services (2015: n = 920 (97.8%); 2021: n = 1538 (98.3%)) in both years, but only half provided delivery services (2015: n = 457 (48.6%); 2021: n = 804 (51.4%)). There were suboptimal improvements in readiness indices over time: (2015–21: family planning 68.0% to 70.9%, p<0.001, antenatal care 49.5% to 54.1%, p<0.001 and basic emergency obstetric and newborn care 56.7% to 58.0%, p = 0.115). The regression model comprising combined datasets of both NHFSs indicates facilities with regular management meetings and/or quality assurance activities had significantly greater readiness for all three indices. Similarly, public facilities had greater readiness for family planning and basic emergency obstetric and newborn care while they had lower readiness for antenatal care.

Conclusions

Readiness to deliver family planning, antenatal care and basic emergency obstetric and newborn care services in Nepal remains inadequate, with little improvement observed over six years.
Detection rate of contrast-enhanced brain magnetic resonance imaging in patients with cognitive impairment
Authors: Joo Leehi , Suh Chong Hyun , Shim Woo Hyun , Kim Seon-Ok , Lim Jae-Sung , Lee Jae-Hong , Kim Ho Sung , Kim Sang Joon
Published: August 2023

Introduction

The number of brain MRI with contrast media performed in patients with cognitive impairment has increased without universal agreement. We aimed to evaluate the detection rate of contrast-enhanced brain MRI in patients with cognitive impairment.

Materials and methods

This single-institution, retrospective study included 4,838 patients who attended outpatient clinics for cognitive impairment evaluation and underwent brain MRI with or without contrast enhancement from December 2015 to February 2020. Patients who tested positive for cognitive impairment were followed-up to confirm whether the result was true-positive and provide follow-up management. Detection rate was defined as the proportion of patients with true-positive results and was compared between groups with and without contrast enhancement. Individual matching in a 1:2 ratio according to age, sex, and year of test was performed.

Results

The overall detection rates of brain MRI with and without contrast media were 4.7% (57/1,203; 95% CI: 3.6%–6.1%) and 1.8% (65/3,635; 95% CI: 1.4%–2.3%), respectively (P<0.001); individual matching demonstrated similar results (4.7% and 1.9%). Among 1,203 patients with contrast media, 3.6% was only detectable with the aid of contrast media. The proportion of patients who underwent follow-up imaging or treatment for the detected lesions were significantly higher in the group with contrast media (2.0% and 0.6%, P < .001).

Conclusions

Detection rate of brain MRI for lesions only detectable with contrast media in patients with cognitive impairment was not high enough and further study is needed to identify whom would truly benefit with contrast media.
Study on the settlement law of tunnel in diatomite stratum based on Strain Softening model
Authors: Li Yan , Zhang Huijian , Liu Gongning , Zheng Yuchao , Fang Wei , Wang Lichuan
Published: August 2023

Nowadays, there is no precedent for building a high-speed railway in diatomite area. Due to the complex structure and poor mechanical properties of diatomite as well as the lack of relevant engineering experience, more attention has been paid to the proper constitutive model of the tunnel in diatomite layer using the numerical calculation method, while the traditional Elastoplastic calculation model is the most used yet. Therefore, relying on the Feifengshan tunnel, through FLAC3D software as well as the on-site monitoring, the analysis of the settlement law about tunnelling in diatomite stratum is carried out based on different constitutive models. The research results show that diatomite has obvious strain-softening characteristics. The calculated surface settlement and vault settlement based on the Strain Softening model was greater than that based on the Mohr Coulomb model. When compared with the on-site monitoring data, it was found that the Strain Softening model would more accurately show the settlement law of the tunnel in diatomite and has better applicability in the diatomite area. The above-mentioned research results may provide some references for the construction and design of tunnels in similar strata in the future.
Research on the Prediction of Rigid Frame-Continuous Girder Bridge Deflection Using BP and RBF Neural Networks
Authors: Liu Jingyang , Wu Hexiang , Sun Quansheng
Published: August 2023

To solve the problem of excessive deflection in the post-operation process of a rigid frame-continuous girder bridge and provide a basis for the setting of its initial camber, this paper, based on the results of finite element analysis, uses three methods to predict and verify the deflection of a rigid frame-continuous girder bridge. The results show that the average deflection method can be used to fit the average deflection value for a relatively long period of time and predict the average deflection value for the next longer period of time. Both the back-propagation (BP) neural network model and the radial basis function (RBF) neural network model can predict deflection well, but the RBF neural network model has higher prediction accuracy, with a mean absolute error (MAE) of 2.55 cmm and a relative error not exceeding 1%. The prediction model established by the RBF neural network has higher stability, better generalization ability, and better overall prediction performance. The established model has some reference significance for similar engineering projects and can achieve the optimization of structural parameters.
THE DISSEMINATION OF NEWS ABOUT CLIMATE CHANGE: AN ANALYSIS OF THE BRAZILIAN SCENARIO IN THE LAST 50 YEARS
Authors: Zezzo Larissa Vieira , Coltri Priscila Pereira
Published: August 2023

The understanding of scientific topics by society is considered complex and the different media play an important role when trying to transmit information. This study sought to contextualize how the communication of climate change occurred, considering the last 50 years and highlighting the Brazilian scenario, through an integrative literature review. Sixty-three articles were used, from which it became evident that the transmission of news by the media has always presented problems at different scales, having strong political influence and inclinations to the economic moment. The results also showed the high level of disinformation and misinformation, especially in digital media, worldwide. In Brazil, television remains the most used media, but in which little attention is perceived to scientific matters. Finally, the present research brings as a novelty to the state of the art, the indication of important questions to be answered and complemented in this area of study, such as the possibility of works to understand the public's relationship with the various media, with regard to the consumption, interpretation and appropriation of news.
LA CRISIS AMBIENTAL EN AGUAS URBANAS: VULNERABILIDAD HÍDRICA Y SU COMPRENSIÓN ONTOLÓGICA
Authors: Arias Diana Alexandra Bernal , Marandola Jr. Eduardo José
Published: August 2023

El agua en el habitar contemporáneo y la creciente crisis hídrica y ambiental nos exigen comprensiones más complejas de estos fenómenos. En este trabajo se procuraron esas compresiones pensando ontológicamente la relación hombre-agua y su papel primordial en el habitar. En él la vulnerabilidad hídrica gana un nuevo horizonte desde lo vivido y el lugar, posibilitando manifestaciones circunscritas a la propia existencia. De este modo, la vulnerabilidad también cobra un nuevo sentido como potencia que puede abrir otras posibilidades para imaginarnos otras existencias posibles. Este trabajo tuvo como fundamento la Geografía Humanista con la arqueología fenomenológica y su descripción fenomenológica, a través de experiencias hídricas narradas como hidropoéticas, a partir de un estudio realizado entre el 2013 y el 2014, en barrios próximos al río Piçarrão en la ciudad de Campinas, San Pablo, Brasil.
TECNOLOGIAS DA GEOINFORMAÇÃO E MAPEAMENTO PARTICIPATIVO APLICADOS NO PLANEJAMENTO DE USO DO TERRITÓRIO TRADICIONAL – SUDESTE DO BRASIL
Authors: Ferreira Matheus Vinicius , Leite Marcos Esdras , Dayrell Carlos Alberto
Published: August 2023

A gestão do território tradicional é um procedimento essencial para a sobrevivência dos Povos e Comunidades Tradicionais (grupos culturalmente diferenciados). A Cartografia, por meio das tecnologias da geoinformação e mapeamento participativo, é acionada constantemente por esses grupos no enfrentamento às adversidades relacionadas à regularização e gestão territorial. Pouco se explorou ainda acerca da utilização da Cartografia como instrumento de planejamento de uso do território, que é uma das principais etapas da gestão territorial. O trabalho analisou o potencial dos mapas participativos e tecnologias da geoinformação nos processos de planejamento de uso e reapropriação adequada de territórios tradicionais. Utilizou-se as experiências vivenciadas no Território Geraizeiro Veredas Vivas, em Rio Pardo de Minas - MG. O mapa participativo confeccionado para planejar o uso do solo nesse território garantiu um ordenamento territorial coerente com o modo de vida local e revelou particularidades relacionadas à produção sustentável e conservação ambiental. O mapeamento de invasões auxiliou no monitoramento dos usos e ocupações irregulares e no diagnóstico das habilidades dos moradores locais quanto a utilização das tecnologias da geoinformação. Sugere-se a implementação de capacitações em tecnologias da geoinformação para que esses indivíduos tenham maior autonomia e continuidade nos processos de mapeamento voltado para a gestão territorial.
A GEOGRAFIA DA CIDADE NO JOGO DE SIMULAÇÃO CITIES SKYLINES: UM ESTUDO DE CASO
Authors: Vieira Solange Francieli , Gomes Marquiana de Freitas Vilas Boas
Published: August 2023

O presente artigo tem como objetivo analisar o potencial didático-pedagógico do jogo de simulação Cities Skylines para o ensino de cidade em Geografia, com enfoque no planejamento urbano sustentável. Este trabalho não esgota as várias possibilidades do seu uso no processo de ensino e aprendizagem, mas elucida potencialidades e determinadas situações-problema nas primeiras fases do jogo, as quais podem ser comparadas com uma cidade real, acompanhadas da inserção do conhecimento geográfico em todo o processo. Para isso, recorre-se a fundamentos teóricos relativos ao ensino de cidade sustentável em Geografia, e à inserção de jogos digitais no processo de ensino e na aprendizagem baseada em jogos digitais, especialmente nas pesquisas relativas ao uso do simulador Cities Skylines. Este artigo delineia uma proposta didática com as fases iniciais do jogo, que podem ser utilizadas pelos professores de Geografia para o ensino de cidade sustentável. Constatou-se que o jogo digital de simulação vem somar, com sua dinamicidade e interatividade, com o processo de ensino e aprendizagem, tendo a mediação do professor um papel fundamental de condutor e orientador do processo de desenvolvimento do pensamento geográfico.
GEOGRAFIAS CULTURAIS NO/DO PLANTATIONOCENO
Authors: Souza Júnior Carlos Roberto Bernardes de
Published: August 2023

As crises socioambientais decorrentes das mudanças climáticas têm impelido as ciências humanas a refletirem sobre as condições experienciais das catástrofes que se multiplicam e intensificam. Nesse sentido, questiona-se o caráter genérico da humanidade implicada no “Antropo” de Antropoceno e explicita-se a potencialidade explicativa do conceito de Plantationoceno como sua alternativa. Ele apresenta um modo abrangente de compreensão dos arranjos de precariedade do presente por situar as distopias dessa época como decorrências do sistema plantation. O presente ensaio visa problematizar as realidades geográficas apocalípticas do Plantationoceno e as maneiras pelas quais os geógrafos culturais têm respondido às questões por elas suscitadas. Para tanto, ele procede por uma investigação bibliográfica interdisciplinar que articula Geografia, Antropologia e Filosofia. Considera-se que enfrentar as condições de co-vulnerabilidade dessa época envolve a valorização de imaginários geográficos de intersubjetividade e intercorporeidade multi-espécies. Ao enovelar experiências, sentidos e práticas humanas e não-humanas, torna-se possível compreender dinâmicas de coabitação terrestre que ofertam olhares caleidoscópicos contrapostos à hegemonia antropocêntrica das reverberações das plantations. Conclui-se que transcender os arruinamentos e as precariedades de (sobre)vivência no Plantationoceno solicita a constituição de geografias culturais que prezem a convivialidade de imaginações geográficas pluritópicas e heterogêneas.
Novo tipo de contenção removível termoplastificada
Authors: Anacleto Murilo Augusto , Campos Rodrigo Pimentel , Eto Luiz Fernando
Published: August 2023

INTRODUÇÃO: A popularidade dos aparelhos de contenção termoplastificados transparentes tem aumentado recentemente, devido a fatores como estética, baixo custo, facilidade de fabricação e boa cooperação por parte dos pacientes. Entretanto, eles têm limitações inerentes, associadas ao material de polímero termoplástico, como: instabilidade dimensional e baixa resistência ao desgaste, além de uma menor capacidade de proporcionar o assentamento oclusal pós-tratamento. Com o objetivo de superar essas deficiências, foi desenvolvido na Universidade Kyung-Hee (Seul, Coreia do Sul), como parte da filosofia da Ortodontia Biocriativa (BOS), um novo tipo de aparelho de contenção, denominado Oral-treaper (OTP). DESCRIÇÃO DO APARELHO: O Oral-treaper consiste em uma contenção termoplastificada a vácuo composta por três camadas híbridas. Sua camada interna é constituída por um núcleo de resina acrílica, e as outras duas camadas são provenientes de uma placa de dupla camada para plastificação a vácuo, comercialmente disponibilizada como Track B® (Forestadent, Pforzheim, Alemanha). A placa Track B® apresenta uma camada interna composta por poliuretano termoplástico (TPU) para proporcionar maior conforto, absorvendo impactos; e uma camada externa responsável por uma maior resistência ao desgaste, a qual é constituída por polietileno tereftalato glicol (PETG). CONCLUSÃO: Esse novo tipo de contenção supera muitas das limitações das outras contenções removíveis termoplastificadas a vácuo, por apresentar uma maior estabilidade dimensional e resistência ao desgaste. O OTP possui características que podem lhe conferir uma maior durabilidade, quando usado como contenção removível após tratamentos ortodônticos, e estudos preliminares sugerem que ele pode permitir o assentamento oclusal.
Ortodontia integrada a reabilitação oral: relato de caso com acompanhamento de cinco anos
Authors: Sousa Raniere Luiz dos Santos , Sousa Claudine Maria de Araújo Revoredo , Sousa Ricardo Luiz dos Santos , Sousa Rodrigo Luiz dos Santos
Published: August 2023

INTRODUÇÃO: A alta demanda por tratamentos ortodônticos em adultos, o desenvolvimento tecnológico e a evolução da mecânica ortodôntica elevaram a participação da Ortodontia nos casos integrados com a Periodontia, Implantodontia, Prótese e Estética, tornando-os mais previsíveis, estáveis e com menor custo biológico. OBJETIVO: O objetivo do presente artigo é descrever um tratamento ortodôntico, integrado à Periodontia, Implantodontia, Prótese e Estética, de uma paciente adulta, com cinco anos de acompanhamento. RELATO DE CASO: A tomografia, juntamente com o exame clínico, tornou possível uma avaliação precisa, levando a um correto diagnóstico e um planejamento ortodôntico associado à ancoragem esquelética com miniplacas. Esse tratamento permitiu a distribuição dos espaços protéticos dos dentes #35, #36 e #46, a reanatomização dos incisivos laterais com resina composta, e a cirurgia de recobrimento radicular com enxerto gengival. RESULTADOS: A Ortodontia, ancorada em três miniplacas e um implante, permitiu a correção do plano oclusal, a instalação dos implantes dos dentes #36 e #46, a cirurgia de recobrimento radicular e a realização dos procedimentos estéticos. CONCLUSÕES: O exame clínico associado ao tomográfico permitiu, além de uma avaliação precisa das estruturas, uma comunicação assertiva entre os profissionais, e orientou o planejamento integrado, com definição específica para cada especialidade: a Ortodontia distribuiu os espaços protéticos para a confecção das coroas sobre implantes dos dentes #35, #36 e #46; a Periodontia contribuiu com a cirurgia de enxerto gengival para recobrimento radicular, e a Dentística Estética Restauradora, com os acréscimos estratégicos em resina composta para a reanatomização dos incisivos laterais, finalizou o caso.
The Impact of The Labial Flange and Artificial Teeth on Lip Support in Elderly Patients with Maxillary Complete Dentures
Authors:   Centre of Studies for Restorative Dentistry, Faculty of Dentistry, University Teknologi MARA (UiTM), Sg Buloh Campus, Selangor, Malaysia, aiemeeza7738@uitm.edu.my, Rajali Aiemeeza , Wati Nur Atikah Mustafa Nor ,   Centre of Studies for Restorative Dentistry, Faculty of Dentistry, University Teknologi MARA (UiTM), Sg Buloh Campus, Selangor, Malaysia, norwati_atikah@uitm.edu.my, Zafir Ashman Zulkiflee Muhamad ,   Faculty of Dentistry, University Teknologi MARA (UiTM),, Najihah Abd Rahman Ain ,   Faculty of Dentistry, University Teknologi MARA (UiTM),, Ahmad Rohana ,   Integrative Pharmacogenomics Institute, Universiti Teknologi MARA, Puncak Alam Campus, Selangor, Malaysia, drrohana@uitm.edu.my
Published: August 2023

Both maxillary complete denture’s labial flange and anterior artificial teeth play important roles in re-establish major support for the upper lip of elderly patients. However, whether the labial flange can be removed and still perceived as aesthetic remain unclear. Objective: To determine the perception of young adults toward the effect of a labial flange and anterior teeth on lip support of an elderly with maxillary complete dentures. Methods: A total of 64 young adults were recruited to evaluate the lip support for facial aesthetics of 30 full-face photographs in 3 different states: with an original complete denture (CD), with a flangeless duplicated denture and without the complete denture. They were rated using a Visual Numerical Scale (VNS) of 10, with 1 being the least attractive and 10 being the most attractive and repeated twice in random order. Soft-tissue profile analysis was performed to determine which facial anatomical landmarks were most important for lip support and aesthetics. Results: The overall VNS rating with CD (6.33 ± 0.58) was significantly higher (p < 0.001) than images with flangeless (5.58 ± 1.01) or without CD (5.23 ± 1.30). The landmarks that showed the most significant changes were in the subnasale area and NLA with original CD (p=0.060, p=0.072) and in frontal lip thickness with flangeless (p=0.082). There are strong correlations between subnasale and NLA and the mean total aesthetic VNS rating of images with CD, but not statistically significant (r=0.708; p=0.118, r=-0.835; p=0.078). Conclusion: The labial flange of a maxillary complete denture plays an important role in lip support and results in the aesthetic perception of the dentures wearer. The anterior teeth alone provide fullness to the lips, but not enough for labial support.
Three-Dimensional Evaluation of the Mandibular Lingula on ConeBeam Computed Tomographic Images in The Turkish Population
Authors:   Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ordu University, Ordu, Turkey, zuerzurumlu@gmail.com, Unal Erzurumlu Zerrin , Torul Damla ,   Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ordu University, Ordu, Turkey
Published: August 2023

Objective: The purpose of this study was to provide morphometric and anatomical data for mandibular lingula (Li) in The Turkish population using three dimensional-cone beam computed tomography (3D-CBCT) images. Methods: CBCT images of the patients taken between July 2020 and March 2021, were retrieved from the archival records. A total of 100 Li’s of 50 patients who met the criteria of this study were evaluated. The distances between the tip of the Li and ramal landmarks/occlusal plane were measured and the shape of the Li was evaluated on 3D-CBCT images. Results: CBCT images of the 50 patients (19 males and 31 females) with an age range of 18 to 56 years were included in this study. Significant differences were found for the measurements of right LP (p < 0.001), left LP (p = 0.003), right LOP (p = 0.016) and left LOP (p = 0.007) between genders. A significant difference was observed for LI (p = 0.024) between the left and right sides. Regarding the shape of the Li significant difference was found between the right and left sides (p = 0.003), while no significant differences were observed among genders on either both sides. Conclusion: This study contributes additional data to the literature about the location and morphology of the Li in Turkish subpopulation. These results provide a reference for the clinicians regarding the procedures involving mandibular ramus to perform maneuvers in safe margins.
Effect of Different Surface Treatments and Application Times on Shear Bond Strength Between Polyetheretherketone and Composite Resin
Authors:   Department of Prosthodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey *Correspondence e-mail to: alprozdgn@gmail.com, Ozdogan Alper , Topdagi Basak ,   Department of Prosthodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey *Correspondence e-mail to: alprozdgn@gmail.com
Published: August 2023

Objective: To investigate the effect of various surface treatments and different application times on shear bond strength between polyetheretherketone and composite resin. Methods: A total of 110 disc-shaped polyetheretherketone specimens were randomly divided into 9 groups and 4 different surface treatments (control, sandblasting, tribochemical silica coating, sulfuric acid) were applied. The sandblasting, tribochemical silica coating, and sulfuric acid processes were performed 3 different times (10s, 15s, 20s). Then, the composite resins were applied to the treated surfaces of the polyetheretherketone specimens. The shear bond strength test and scanning electron microscopy analysis were performed. The data were statistically analyzed using analysis of variance and Duncan honest significant difference test. Results: One-way analysis of variance revealed differences in shear bond strength among the groups (p <0.001). While the control group showed the lowest bond strength values (4.24 ± 1.53 MPa), 20 s of sulfuric acid process showed the highest bond strength values (27.91 ± 4.44 MPa). Conclusion: Depending on the application time to the material, additional surface treatments increase the polyetheretherketone composite bonding. Surface treatments with sulfuric acid applications provide higher surface bonding values than other treatments
Konfliktní hranice: české země a kolektivní násilí v krizovém roce 1938 a během počátečního období nacistické vlády
Authors: Mrňka Jaromír
Published: August 2023

Studie umisťuje československé události z let 1938 až 1939 do širšího analytického srovnání. Autor používá typologii kolektivního násilí Charlese Tillyho, aby odhalil obecnější propojení mezi oslabováním státní moci a eskalací násilí. Zachycuje obecné vlastnosti a konstruuje ideální typy násilných interakcí, k nimž ve sledovaném období došlo v českých zemích. Autor ve své analýze dochází k závěru, že činy kolektivního násilí se od jara 1938 do léta 1939 objevovaly nejčastěji ve formě, kterou Tilly typologicky označuje za selhavší vyjednávání a náhodné útoky. Násilné činy se primárně vztahovaly k obdobím mocenské nestability. Klíčové bylo působení specialistů na násilí, které bylo koordinováno politickými vůdci, mobilizujícími veřejnost proti údajnému akutně hrozícímu nebezpečí. Politici zároveň využívali pomluv, které se v atmosféře nejistoty rozšiřovaly velmi rychle. Političtí vůdci používali kolektivní násilí jako nástroj politického boje a získávali pro své politické úmysly širokou podporu.
Historikové a úpadek
Authors: Slačálek Ondřej
Published: August 2023

Studie analyzuje diskurz českých historiků a autorů na veřejnosti chápaných jako historici (historici Martin Kovář, Ivan Šedivý a Marie Koldinská, dále egyptolog Miroslav Bárta, antropolog Ivo Budil a spisovatel Vlastimil Vondruška), kteří v masových médiích i ve svých textech soustavně během poslední dekády prosazují ideu úpadku západní civilizace. Po představení kontextu konzervativního deklinismu na západě i v ČR, studie představuje nejdůležitější témata v diskurzu českých deklinistických historiků: otázky demokracie, sociálního státu, EU, armády a maskulinity. Studie dále analyzuje kritický pohled deklinistických historiků na vědu a zvláště na nové trendy v historických vědách; podle Ivana Šedivého "koncepty jako gender... menšiny a okrajové skupiny, postkolonialismus, environmentalismus... to jsou Molotovovy koktejly 21. století..." Podle jejich názoru historiografie údajně ztratila schopnost poskytovat společnosti integrativní narativ. Studie posléze analyzuje epistemologické předpoklady deklinistických historiků: myšlenku věčné lidské přirozenosti, nebo "zákonů vývoje" civilizací. V závěru studie argumentuje, že tyto předpoklady se vyznačují protikladností ve smyslu historie jako analýzy minulosti v její specifičnosti a rozdílnost (a také ve smyslu konzervativních hodnot respektu k této specifičnosti) a že podobné rozpory můžeme nalézt ve způsobu, jakým deklinističtí historici zacházejí s budoucností.
JANA WOHLMUTH MARKUPOVÁ, Soukromá válka Huga Vavrečky: Mikrohistorie z rozhraní soudobých dějin (1945–1952), Praha 2022, Univerzita Karlova, nakladatelství Karolinum, 248 s., ISBN 978-80-246-4994-8
Authors: Kolumber David
Published: August 2023

Recenze
RICHARD PRICE, Inside/Outside: Adventures in Caribbean History and Anthropology, Athens: The University of Georgia Press, 2022
Authors: Křížová Markéta
Published: August 2023

Recenze
Not Only Hypoxia- but Radiation-Induced Epithelial-Mesenchymal Transition Is Modulated by Hypoxia-Inducible Factor 1 in A549 Lung Cancer Cells
Authors: Sato M. , Hirose Katsumi , Ichise K. , Yoshino H. , Harada T. , Hatayama Y. , Kawaguchi H. , Tanaka M. , Fujioka I. , Takai Y. , Aoki M.
Published: August 2023

Hypoxia leads to post-treatment metastasis and recurrences of cancer via the epithelial-mesenchymal transition (EMT). Radiotherapy itself may also contribute to the acquisition of EMT phenotypes. Despite extensive studies on the EMT driven by either hypoxia or radiation stimuli, the molecular mechanisms characterizing these EMT events remain unclear. Thus, we aimed to evaluate the differences in the molecular pathways between hypoxia-induced EMT (Hypo-EMT) and radiation-induced EMT (R-EMT). Further, we investigated the therapeutic effects of HIF-1α inhibitor (LW6) on Hypo-EMT and R-EMT cells. A549 cells, lung adenocarcinoma cell line, acquired enhanced wound-healing activity under both hypoxia and irradiation. Localization of E-cadherin was altered from the cell membrane to the cytoplasm in both hypoxia and irradiated conditions. Of note, the expression levels of vimentin, one of the major EMT markers, was enhanced in irradiated cells, while it decreased under hypoxia condition. Importantly, LW6 significantly blocked EMTrelated malignant phenotypes in both Hypo-EMT cells and R-EMT cells with concomitant re-location of E-cadherin onto the cell membrane. Moreover, LW6 deflected stress responsive signalling, JNK, activated sustainably under hypoxic condition, and the blockage of JNK impaired EMT phenotypes. Together, this work demonstrated the molecular events underlying Hypo-EMT and R-EMT, and highlighted HIF-1α as a therapeutic target not only in Hypo-EMT, but also in R-EMT.
The Morphology of Cell Differentiation, Terminal Differentiation and Ageing Seems To Reflect the Same Process: a Short Note
Authors: Smetana Karel , Mikulenková D. , Klamová H.
Published: August 2023

Based on simple microscopic cell morphology in blood and bone marrow smear preparations, it seems to be likely that the cell differentiation and terminal differentiation in human blood cells, and particularly in erythroid or granulocytic lineages, simultaneously reflect ageing of the lineage progenitors and terminal differentiation steps. The terminal differentiation stages of both these lineages actually appear as senescent cells. Abnormal ageing of progenitor cells may represent one of the “dysplastic” phenomena of the premature terminal differentiation state. Such state is characterized by heterochromatin condensation and nucleolar morphology similar to that in fully differentiated terminal cells of granulocytic or erythroid lineages. It should also be mentioned that in some known erythropoietic disorders, less differentiated erythroblasts may lose nuclei similarly as “normal” fully terminally differentiated cells of the erythroid cell lineage. It seems to be clear that cells in both abnormal less differentiated and terminally differentiated stages of erythroid or granulocytic lineages lose the ability to multiply similarly as senescent cells. On the other hand, the background of cell ageing and differentiation is very complicated and requires a different approach than the simple microscopic morphology at the single cell level. However, the morphology and clinical cytology at the single cell level might still contribute with complementary data to more sophisticated complex studies of that topic. In addition, the morphological approach facilitates the study of the main components of single cells in various states, including the differentiation steps or ageing.
Strategic Action for the Development of Social Impact Businesses: Evidence from Brazilian Amazon
Authors: Bravim Jhordano Malacarne , Segatto Andréa Paula , Justen Gelciomar Simão , Carvalho Ana Carolina Vilela
Published: August 2023

This research sought to understand how governments of the nine states that make up the Brazilian Amazon plan to act strategically to develop social impact businesses. From the analysis of the Multi-Year Plans 2020-2023 and through qualitative research with content analysis, we identified that all state governments of the Brazilian Amazon consider in some way the relationship with social impact businesses as a strategy for the development of various themes. 47 passages identified are related to 14 thematic areas (economy; social development; work, employment, and income; science, technology, and innovation; family agriculture; integrated development; agribusiness; regional development; health; planning, budget, and management; fishing; partnerships; industrial development; and, culture, sports, and leisure) and 5 organizational formats (solidarity economy enterprises; collective entrepreneurship; solidary economy; associations; and cooperatives) that have collectivism and solidarity in common. A relational model of the strategic action of the state governments of the Brazilian Amazon through social impact businesses indicates the predictability of strategic initiatives for the development of this kind of business.
Singular moduli of rth Roots of modular functions
Authors: Choi SoYoung
Published: August 2023

When singular moduli of Hauptmodules generate ring class fields (resp. ray class fields) of imaginary quadratic fields, using the theory of Shimura reciprocity law, we determine a necessary and sufficient condition for singular moduli of

r

r

th roots of the Hauptmodules to generate the same ring class fields (resp. ray class fields) as do the singular moduli of the Hauptmodules.
Recent advancements in nanotechnology application on wood and bamboo materials: A review
Authors: Paul Dabosmita , Gaff Milan , Tesařová Daniela , Hui David , Li Haitao
Published: August 2023

Wood and bamboo are the greenest renewable materials used for construction, furniture, and decor from the ancient ages. However, wood and bamboo have intrinsic faults like durability, ductility, physical and mechanical strength, and stability, limiting their applications in the industry. On the other hand, nanotechnology is a popular technology having numerous applications in different fields, resulting in a significant increase in expectations among academics, investors, the government, and industries. In contrast, nanotechnology can protect wood and bamboo from extreme conditions (bacteria, climate, etc.) by improving physicochemical characteristics because of its unique features. Nowadays, the trend of merging nanotechnology and forest industries to overcome the limitations mentioned above and get economically sustainable materials for construction, furniture manufacturing, flexible sensors developments, energy storage, battery manufacturing, and many more is increasing. Presently, several reviews on wood and bamboo modification by nanoparticles and nanomaterials have already been published. But, at this time, this study is essential because it aims to provide a brief guide about the recently developed eco-friendly sustainable materials from wood and bamboo, their uses, and how they can affect people’s daily life and helps to point out the gap of the current knowledge. In addition, we briefly describe the conventional and modern modification methods, including the influence of nanomaterials on wood and bamboo structures. This article is outlined as follows: The first phase of the review deals with wood and bamboo modification methods. The second phase explains how the modification method improves the properties of wood and bamboo materials, and the last step will describe the recent innovation of wood and bamboo materials.
Early Bronze Age amber in Slovakia. Chronology, mechanisms of exchange and acceptance of the new raw material
Authors: Jaeger Mateusz , Oravkinová Dominika , Piszora Paweł , Olexa Ladislav , Soják Marián
Published: August 2023

Dank einer langen Geschichte der Erforschung der Herkunft, der Verteilungsnetze und der Bewertung der kulturellen Bedeutung von Bernstein, nimmt die Informationsmenge über die Komplexität der Tauschnetzwerke im bronzezeitlichen Europa stetig zu. Die vorliegende Studie stellt die nächste Stufe in der Entwicklung der Forschung zu diesem Thema dar. Sie präsentiert eine Synthese des bisherigen Wissens über das Vorkommen von Bernstein in der Frühbronzezeit auf dem Gebiet der heutigen Slowakei sowie neue Erkenntnisse über die Herkunft des Rohmaterials und die absolute Chronologie der Funde von drei ausgewählten Fundstellen im östlichen Teil des Landes.

Auf der Grundlage der gewonnenen Informationen werden Schlüsselfragen im Zusammenhang mit der Herkunft des Bernsteins, dem Kontext seiner Ablagerung und den chronologischen Mechanismen seiner Verbreitung im untersuchten Gebiet diskutiert. Die erzielten Ergebnisse sind ermutigend genug, um die Anfänge der Bernsteinannahme, seine weitere Wahrnehmung und Bewertung durch Tauschstrategien zu vergleichen und zu klären, wobei Bernstein eher als Nebenprodukt eines komplexeren Handelssystems bereitgestellt zu werden scheint, das sich in erster Linie auf den Metalltausch konzentriert.
Five hoards in eighty years. Landscape perspectives on new Bronze Age hoard finds around Lake Mälaren in Sweden
Authors: Rundkvist Martin
Published: August 2023

Since 1941, only five Bronze Age hoards have been found in the four provinces around Sweden’s Lakes Mälaren and Hjälmaren: three in Uppland, two in Södermanland, none in Västmanland or Närke. The most recent one appeared in 2016. Here each hoard is discussed in terms of its date, the regional affiliation of its contents, and its landscape situation. They all date from Per. V–VI, c. 950–520 cal BC, and are entirely dominated by locally made objects. Two sites are apparently peripheral in relation to period settlement and to other deposition sites, while two are in an area of dense settlement and were found during the same military metal detector campaign. The steep drop in new hoard finds after World War II is discussed, and Sweden’s restrictive metal detector legislation is identified as the main reason that only five hoards have come to light in the area over the past eighty years.
Simulation and analysis of hot plume infrared signature based on SNB model
Authors: Zhou Yue , Wu Jie , Li Liang , Guo Qisheng , Zhu Xijuan , Ma Jing
Published: August 2023

Numerical calculation of infrared emission from hot plume is of great significance for flight monitoring and detections. In this paper, the SNB (statistical narrow band) model established with parameters derived from the high-resolution spectral database HITEMP 2010 is used to perform the hot plume infrared signature simulations. Accuracy of the model is examined by the exact LBL (line by line) method, which proves the model’s reliability to predict radiative properties of combustion gases. In the application part, the SNB model is used to analyze infrared signatures of aircraft plumes cruising at different flight altitudes. The results show that cruising at a higher-altitude will obviously reduce the plume infrared emission. Besides, the plume infrared emissive energy mainly concentrates in a special wavenumber interval and can be strongly absorbed by atmosphere.
Effect of equivalence ratio on the detonation noise characteristics of pulse detonation engine
Authors: Xu Gui-Yang , Li Bao-Xing , Li Hong-Yan , Zhu Yan-Fang , Guan Yi-Wen , Zhang Jian-Xiong
Published: August 2023

The experimental system of pulse detonation engine (PDE) is set up to investigate the influence of equivalence ratios on detonation noise characteristics. The research results show that as the equivalence ratio increasing, the amplitudes of detonation noise in all angles and locations increase, and the tB
also increases simultaneously, while the tA
increases first and then decreases. The equivalence ratio also has a great influence on the intensity of the detonation noise signal in the frequency band of 10–100 Hz, which increases firstly and then decreases with the increase of the equivalence ratio, and the maximum value is obtained at equivalence ratio of 1.1. The results are of great significance to study the mechanism of detonation noise and promote the process of the engineering application.
A interpretação “neo-fenomenalista” do noema husserliano e o afastamento de Gurwistch da fenomenologia transcendental
Authors: Missaggia Juliana
Published: August 2023

Neste artigo analiso a interpretação de Aron Gurwitsch sobre a noção de noema, a qual se mostra como um dos mais complexos e controversos conceitos na teoria husserliana da intencionalidade. Tal leitura, que ficou conhecida como interpretação neo-fenomenalista, apresenta uma tentativa de afastar a fenomenologia dos modos tradicionais de idealismo. Demonstro, no entanto, que apesar da originalidade e dos diversos aspectos interessantes da análise de Gurwitsch – tal como a inserção de elementos da Gestalt –, sua interpretação falha em compreender de modo adequado o pensamento de Husserl, acabando por afastar o filósofo lituano da fenomenologia transcendental.
Haveria um "déficit agonístico" na teoria de Axel Honneth?
Authors: Pacheco Mariana Fischer
Published: August 2023

O projeto crítico de Axel Honneth, até meados da década de 2000, ressaltava o papel de uma concepção antropológica assentada em uma psicologia moral. Tal empreendimento foi criticado tanto por Nancy Fraser como por Judith Butler. Argumento que as objeções formuladas por duas filósofas de linhagens muito distintas possuem algo em comum: apontam para a ausência de um conflito genuíno ou um “déficit agonístico” na teoria de Honneth. Segundo Butler, a luta não estaria presente em todo seu vigor na vida psíquica e, de acordo com Fraser, seria também amansada na vida social. Concluo que mesmo após a recente “virada histórica” honnethiana tal deficiência permanece presente.