bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of silver diamine fluoride on the bond strength of glass ionomer to the enamel of primary teeth
Authors: Salimian Negar , Ebrahimian Maryam , Jafari Niloufar , Shirani Farzaneh 
Published: May 2023

Background:
Dental caries is a disease which is caused by the acidic by-products of the metabolic processes of dental plaque. Silver components are one of the clinical solutions to prevent caries. This study aimed to investigate the effect of silver diamine fluoride (SDF) application on the shear bond strength of glass ionomer to primary teeth enamel.

Materials and Methods:
In this in vitro study, a total of 48 anterior sound primary teeth were randomly divided into four groups (n = 12). The control group (G1) consisted of healthy primary teeth, and the three experimental groups (G2–G4) were composed of demineralized primary teeth. The second group did not undergo SDF treatment, the third group underwent SDF treatment, and the fourth group underwent SDF treatment plus polishing. Glass ionomer cylinders were bonded to all specimens and subsequently tested by a universal testing machine to measure the glass ionomer shear bond strength. The type of fracture was examined by a stereomicroscope. Data analysis was carried out using the SPSS 22 statistical software. Data were analyzed by one-way analysis of variance and posthoc Tukey tests (α =0.05).

Results:
The mean shear bond strength of the glass ionomer was significantly higher in the control group than in the other three groups (P < 0.05). The mean shear bond strength of glass ionomer was significantly higher in the SDF-treated group than in the non-SDF treated and SDF-treated and polished groups (P < 0.05).

Conclusion:
Although the glass ionomer bond strength to sound enamel was higher than other groups by a significant margin, the application of SDF increases the shear bond strength of the glass ionomer to remineralized white spot enamel in primary teeth.
Hydrogeochemical processes and suitability assessment of surface water in the Grouz Dam Basin, northeast Algeria
Authors: Lalaoui M. , Allia Z. , Chebbah M. 
Published: May 2023

Surface water is the principal source of water for domestic use and agricultural irrigation in Grouz Dam Basin and adjacent regions. This research aims to evaluate hydrochemical characteristics and suitability for domestic and agricultural irrigation purposes of the Grouz Dam Basin surface waters. The surface waters were categorized as alkaline hard freshwater and are classified into Na-Cl and mixed water types. The values of measured parameters are below the maximum allowable limits for drinking except for Na+, NO32- and turbidity. Dissolution and anthropogenic activity are the dominant hydrogeochemical processes controlled surface water chemistry. Overall, it was found that surface waters are unsuitable for drinking by cons they are suitable for irrigation. The results of this study will be useful in regional surface water management and protection.
Numerical study and performance of a dew point evaporative cooler for buildings in Constantine, Algeria
Authors: Abada D. , Rouag-Saffidine D. , Maalouf C. , Polidori G. , Sotehi O. 
Published: May 2023

Due to the ever-growing demand for air-conditioning to bring the indoor air temperature to a comfortable level regardless of the excessive electricity consumption, research is more oriented towards new techniques enabling more energy savings and less adverse environmental impacts. Dew point evaporative cooling systems hold among the most promising because of their ability to reduce the outside air temperature below its wet bulb level while keeping the absolute humidity constant.
The current paper aims to report an investigation, which tackles the cooling capacity of the system under the Algerian Climate. Constantine city (Algeria) climatic data are retained for the modelling and designing of the system in question. The study involves a variation of its length and air return rate interaction with its efficiency and air temperature supply.
RANCANG BANGUN MESIN PENCUCI KOPI MENGGUNAKAN TUAS DENGAN SISTEM TURBULENSI 50 Kg/Jam
Authors: Simbolon Ramotan Pandaraman , Situmorang Timbul Yosua Acer , Sebayang Sawin , Tarigan Kristian 
Published: May 2023

Sebagaimana telah diketahui bahwa yang disebut dengan perancangan adalah kegiatan awal dari suatu rangkaian dalam proses pembuatan produk. sementara untuk merealisasikan suatu rancangan selalu diawali dengan merencanakan daya penggerak, melakukan perencanaan terhadap komponen-kompone yang digunakan, menentukan ukuran dan kekuatan komponen yang dipakai dan lain-lain yang dianggap penting dalam perencanaan mesin . Adanya penemuan baru dibidang teknologi adalah salah satu bukti bahwa kebutuhan umat manusia semakin bertambah dari waktu ke waktu disamping untuk memenuhi kebutuhan manusia,munculnya penemuan baru yang dilatarbelakangi oleh penggunaan tenaga dan waktu manusia yang terbatas seperti halnya dalam pencucian biji kopiyang masih dilakukan dengan cara manual dan memutuhkan banyak tenaga dan waktu yang lama sehingga tidak efisien . Maka dilakukan suatu analisis perancangan mesin pencuci biji kopi yang bertujuan meningkatkan produktivitas pencucian biji kopi. pada perancangan ini dikhususkan pada perhitungan gaya, poros, pasak, puli, sabuk, bantalan, dan perhitungan pegas. Daya yang dibutuhkan pada perancangan ini
MAINSTREAM ECONÔMICO
Authors: Moreira Brito Bastos Remo , Girão Santiago Eduardo 
Published: May 2023

O objetivo do presente artigo consiste em examinar, à luz da Sociologia Econômica, a persistente hegemonia midiática, acadêmica e cultural do paradigma neoclássico da ciência econômica, em detrimento da pluralidade de concepções teóricas e metodológicas que poderiam fazer parte do rol de opções a serem analisadas e avaliadas pelas sociedades contemporâneas com vistas a enfrentar seus problemas sociais, econômicos e ambientais. No que respeita à metodologia, adotou-se uma abordagem qualitativa, fazendo-se uso de pesquisa bibliográfica e documental. A título de conclusão, aferiu-se que a economia neoclássica, com a sua modelagem econométrica, tem servido preferencialmente para fundamentar o receituário neoliberal que rege as políticas econômicas da maioria dos países, razão pela qual é perceptível a insatisfação crescente em universidades, institutos de pesquisas e até em instituições internacionais de desenvolvimento em relação ao credo ortodoxo e ao estéril formalismo neoclássico.
Resorcinol Formaldehyde Resin-Modified Carbon Nitride as Metal-free Photocatalyst for Water Treatment
Authors: Tran Hong Minh  , Nguyen Xuan Truong  , Nguyen Ngoc Tue  , Nguyen Duc Trung  , Giang Thi Phuong Ly  , Tran Thuong Quang  
Published: May 2023

Metal-free catalysts are considered a new strategy for environmental application since they do not release any additional hazardous compounds when employed for an extended period. Carbon-based materials and carbon nitride have drawn a lot of interest owing to their physical and optical properties. Herein, we reported a new way to modify carbon nitride with resorcinol-formaldehyde resins, a member of phenolic resins, to enhance their photocatalytic activity. The length of time to polymerize resorcinol-formaldehyde resins was investigated as it had a great impact on the characteristic features as well as the photocatalytic performance of the resulting materials. SEM images revealed that RF resins appeared as nano-fragments and were deposited densely on the surface of carbon nitride. On the other hand, the deposition of RF on the surface of carbon nitride had a great influence on the BET surface area values. For photocatalytic performance, all the modified samples exhibited significantly improved photocatalytic activity towards Methylene Blue (MB). The optimal sample was RF@CN10, which the reflux time was 10 hours. This sample has a more broaden absorption spectrum and a narrower bandgap energy (2.66 eV) than the pure carbon nitride. With regard to photocatalytic activity, this sample could completely degrade MB in the solution within 40 minutes, but it had poor efficiency when visible light was absent. Additionally, the catalyst could work effectively in neutral and alkaline conditions and could be reused for 5 cycles. Finally, the hypothesis for RF-carbon nitride cross-linking and the synergistic effect in the catalyst had been proposed.
Density Functional Theory Investigation of EPR Parameters for of Mn(II), Fe(II), Co(II) and Cd(II) complexes based on a tetradentate ONNO donor Schiff base ligand
Authors: Duc-Trung Nguyen  , Ngoc-Tue Nguyen  , Pham Van Tien  
Published: May 2023

Characterization of a tetradentate ONNO Schiff base ligand namely (1, 1′- (pyridine-2, 3-dimethyliminomethyl) naphthalene-2, 2′-diol) and hereafter denotes as “SL″ and selected metal complexes including Mn(II), Fe(II), Co(II) and Cd(II) as a central metal was studied. In this paper, the calculation was done to determine the magnetic exchange of the studied molecules, Schiff base complexes via DFT calculations. Using the ZORA approach with the BP86 functionals and appropriate basis set def2-tzvp and Coulomb fitting, the optimized geometries were obtained with reliable accuracy and precision. The dipole moment was calculated. The EPR parameters were also reported.
O efeito das estratégias de comunicação promocional na intenção de compra de seguro saúde
Authors: Souza Alessandra Ramon de , Carvalho Marcelo , Lopes Evandro Luiz 
Published: May 2023

Objetivo: Este estudo tem por objetivo explicar a influência do foco regulatório na efetividade comunicação promocional com enquadramento de perda ou ganho, para produtos de seguro saúde. Método: Esta pesquisa foi do tipo conclusiva causal, na qual o delineamento experimental foi conduzido por meio da apresentação de duas comunicações promocionais com estruturações distintas e determinação da intenção de compra a partir de cada uma delas. Resultados: Foi possível observar que indivíduos de foco regulatório promocional se engajam pouco à ideia do seguro, um produto que possui caráter de resguardo e não engloba as características de realização e progresso preferíveis por aquele grupo. Esta baixa aderência independe do tipo de comunicação utilizada – com apelo emocional positivo ou negativo. Todavia é proveitoso atentar para o desempenho consideravelmente melhor das comunicações com apelo emocional negativo ao atingir o público de foco regulatório preventivo. Originalidade: Este estudo inova ao estender a compreensão sobre a influência do foco regulatório na efetividade do uso da estratégia de comunicação promocional em seguro saúde.
Determining factors of continuance intention of use regarding Pix payment services on Brazil
Authors: Caldeira Tharcisio , Vidigal Naiara , Vieira Jéssica 
Published: May 2023

A necessidade de entender o comportamento do consumidor em relação às inovações tecnológicas é essencial para que as empresas desenvolvam suas estratégias para atender as necessidades de seus clientes e se tornarem mais competitivas no mercado. O objetivo principal deste trabalho foi investigar os principais fatores que influenciam a continuidade do uso dos serviços de pagamentos Pix no Brasil. Esta pesquisa utilizou o Modelo de Expectativa-Confirmação (ECM) adaptado, juntamente com os construtos do Modelo de Aceitação de Tecnologias (TAM), Prontidão Para a Tecnologia (TR) e Risco Percebido (PR). Os dados foram coletados por meio de uma survey com 467 respondentes. Esses dados foram analisados por meio da técnica de Modelagem de Equações Estruturais (SEM). Os resultados indicaram que a satisfação do consumidor é um forte preditor da intenção de continuar, assim como a utilidade percebida e a facilidade percebida de uso, que tem influência indireta. No entanto, o risco percebido, mesmo sendo significativo em relação à utilidade percebida, apresentou pouco efeito no modelo.
NOVEL NETWORK EXPLORATION THROUGH MRNA CHANGES IN THE SKELETAL MUSCLE AFTER RESISTANCE EXERCISE
Authors: IRUM HAYAT  , ISABELLE LYS  , RACHEL PAGE  
Published: May 2023

Background: Type 2 diabetes mellitus (T2DM) has been regarded as a syndrome of modified lifestyle disorder. The thrifty genotype has been used to elucidate the amplified incidence and prevalence of T2DM in high risk ethnic populations such as Pima Indians, Latino and African Americans, Japanese and Pacific people. Exercise moves the crucial imperfections linked with reduced metabolic capacity and fatty oxidation are interrelated to the etiology of obesity and insulin resistance.
Objectives: To investigate the statistically significant changes in skeletal muscle mRNA expression with resistance exercise after 16 weeks, using the microarray data and identify the statistically significant genes related to energy metabolism and skeletal muscle remodelling in response to exercise in the SPIRIT study cohort.
Materials and Methods: This randomized clinical trial was carried out at Massey University, New Zealand from 1st July 2015 to 31st December 2015. Eighteen participants with type 2 diabetes were recruited in aerobic exercise training for 16 weeks. mRNA was extracted from the skeletal muscle biopsy sample. Examination of the gene set, molecular and physiological function analysis and network construction was performed in Ingenuity Pathways Analysis. A total of 20,000 genes associated with the human genome were probed.
Results: Total 653 genes (3.3% of the human genome) were found to change in expression, with statistical significance, after 16 weeks of intervention. a total of 143 genes had a fold change 1.2. Out of the 143 genes, 120 showed a fold change 1.3 and 20 genes had a fold change 1.4.
Conclusion: The resistance exercise could be an important rehabilitation tool to stimulate skeletal muscle flexibility in people with T2DM and obesity.
FROZEN SECTION DIAGNOSIS: AN EXPERIENCE AT THE INSTITUTE (CHUGHTAI’S LAHORE LAB, LAHORE)
Authors: MUHAMMAD FAYYAZ ANWAR  , MUHAMMAD IRFAN BASHEER  , SADIA RANA  , NAJAM-ULHASNAIN  , HASEEB AHMED KHAN  , IQBAL AHMED  , MUHAMMAD KASHIF MUGHAL  
Published: May 2023

Background: Frozen section based histological diagnosis is required by the surgeon(s) to make immediate intraoperative decision(s) So, high accuracy of frozen section is important for the reporting surgical pathologist(s) and surgeon(s) to make subsequent on-table decision for the management of the patient.
Objective: To assess the concordance of frozen section histological diagnosis reported in our institute by comparing it with subsequent final histological diagnosis.
Material & Methods: Biopsy specimens 100 patients submitted for frozen section diagnosis were included in the study. The diagnosis rendered on fresh frozen section was compared with the diagnosis rendered on paraffinembedded formalin-fixed section of the same specimen.
Results: Male-to-female ratio of the patients included in the study was 2:1 with mean age of 48.70 years. The diagnosis could be rendered in 99 cases, while in 1 case diagnosis was deferred to permanent sections (deferral rate: 1%). There was no difference found between the frozen section diagnosis and the final diagnosis in 97 (concordance rate: 97.9%) cases.
Conclusion: Frozen section-based histological assessment for diagnosis and/or surgical resection margins status is a reliable technique in terms of its timely and accurate reporting and low deferral rate.
Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions
Authors: Xu Yue , Yu Xiping 
Published: May 2023

Abstract. Accurate description of the wind energy input into ocean waves is crucial to
ocean wave modeling and a physics-based consideration on the effect of wave
breaking is absolutely necessary to obtain such an accurate description.
This study evaluates the performance of an improved formula recently
proposed by Xu and Yu (2020), who took into account not only the effect of
breaking but also the effect of airflow separation on the leeside of steep
wave crests in a reasonably consistent way. Numerical results are obtained
through coupling an enhanced atmospheric wave boundary layer model with the
ocean wave model WAVEWATCH III (v5.16). The coupled model has been extended
to be valid in both deep and shallow waters. Duration-limited waves under
controlled normal conditions and storm waves under practical hurricane
conditions are studied in detail to verify the improved model. Both the
representative wave parameters and the parameters characterizing the wave
spectrum are discussed. It is shown that the improved source-term package
for the wind energy input and the wave energy dissipation leads to more
accurate results under all conditions. It performs evidently better than
other standard source-term options of ST2, ST4 and ST6 embedded in WAVEWATCH
III. It is also demonstrated that the improvement is particularly important
for waves at their early development stage and waves in shallow waters.
Earthquake hazard characterization by using entropy: application to northern Chilean earthquakes
Authors: Posadas Antonio , Pasten Denisse , Vogel Eugenio E. , Saravia Gonzalo 
Published: May 2023

Abstract. The mechanical description of the seismic cycle has an energetic analogy in terms of statistical physics and the second law of
thermodynamics. In this context, an earthquake can be considered a phase
transition, where continuous reorganization of stresses and forces reflects
an evolution from equilibrium to non-equilibrium states, and we can use this
analogy to characterize the earthquake hazard of a region. In this study, we used 8 years (2007–2014) of high-quality Integrated Plate Boundary
Observatory Chile (IPOC) seismic data for > 100 000 earthquakes
in northern Chile to test the theory that Shannon entropy, H, is an indicator of the equilibrium state of a seismically active region. We confirmed increasing H reflects the irreversible transition of a system and is linked to the occurrence of large earthquakes. Using variation in H, we could detect major earthquakes and their foreshocks and aftershocks, including the 2007 Mw 7.8 Tocopilla earthquake, the 2014 Mw 8.1 Iquique earthquake,
and the 2010 and 2011 Calama earthquakes (Mw 6.6 and 6.8,
respectively). Moreover, we identified possible periodic seismic behaviour
between 80 and 160 km depth.
Seasonal and El Niño–Southern Oscillation-related ocean variability in the Panama Bight
Authors: Torres Rafael R. , Giraldo Estefanía , Muñoz Cristian , Caicedo Ana , Hernández-Carrasco Ismael , Orfila Alejandro 
Published: May 2023

Abstract. In the Panama Bight, two different seasonal surface circulation patterns
coincide with a strong mean sea level variation, as observed from 27 years
of absolute dynamic topography (ADT) and the use of self-organizing maps.
From January to April, a cyclonic gyre with a strong southwestward Panama
Jet Surface Current (PJSC) dominates the basin circulation, forced by the
Panama surface wind jet that also produces upwelling, reducing sea surface
temperature (SST), increasing sea surface salinity (SSS) and causing an ADT
decrease. From June to December, the Choco surface wind jet enhances SST,
precipitation and river runoff, which reduces SSS, causing an ADT rise, which in turn forces a weak circulation in the bight, vanishing the PJSC. Interannual
variability in the region is strongly affected by El Niño–Southern Oscillation (ENSO); however this
climatic variability does not modify the seasonal circulation patterns in
the Panama Bight. In contrast, the positive (negative) ENSO phase increases
(decreases) SST and ADT in the Panama Bight, with a mean annual difference
of 0.9 ∘C and 9.6 cm, respectively, between the two conditions,
while its effect on SSS is small. However, as the strong seasonal SST, SSS
and ADT ranges are up to 2.2 ∘C, 2.59 g kg−1 and 28.3 cm,
the seasonal signal dominates over interannual variations in the bight.
Simulating the Laurentide Ice Sheet of the Last Glacial Maximum
Authors: Moreno-Parada Daniel , Alvarez-Solas Jorge , Blasco Javier , Montoya Marisa , Robinson Alexander 
Published: May 2023

Abstract. In the last decades, great effort has been made to reconstruct the Laurentide Ice Sheet (LIS) during the Last Glacial Maximum (LGM; ca. 21 000 years before present, 21 kyr ago). Uncertainties underlying its modelling have led to notable differences in fundamental features such as its maximum elevation, extent and total volume. As a result, the uncertainty in ice dynamics and thus in ice extent, volume and ice stream stability remains large. We herein use a higher-order three-dimensional ice sheet model to simulate the LIS under LGM boundary conditions for a number of basal friction formulations of varying complexity. Their consequences for the Laurentide ice streams, configuration, extent and volume are explicitly quantified. Total volume and ice extent generally reach a constant equilibrium value that falls close to prior LIS reconstructions. Simulations exhibit high sensitivity to the dependency of the basal shear stress on the sliding velocity. In particular, a regularised Coulomb friction formulation appears to be the best choice in terms of ice volume and ice stream realism. Pronounced differences are found when the basal friction stress is thermomechanically coupled: the base remains colder, and the LIS volume is lower than in the purely mechanical friction scenario counterpart. Thermomechanical coupling is fundamental for producing rapid ice streaming, yet it leads to a similar ice distribution overall.
Forcing and impact of the Northern Hemisphere continental snow cover in 1979–2014
Authors: Gastineau Guillaume , Frankignoul Claude , Gao Yongqi , Liang Yu-Chiao , Kwon Young-Oh , Cherchi Annalisa , Ghosh Rohit , Manzini Elisa , Matei Daniela , Mecking Jennifer , Suo Lingling , Tian Tian , Yang Shuting , Zhang Ying 
Published: May 2023

Abstract. The main drivers of the continental Northern Hemisphere snow cover are investigated in the 1979–2014 period. Four observational datasets are used as are two large multi-model ensembles of atmosphere-only simulations with prescribed sea surface temperature (SST) and sea ice concentration (SIC). A first ensemble uses observed interannually varying SST and SIC conditions for 1979–2014, while a second ensemble is identical except for SIC with a repeated climatological cycle used. SST and external forcing typically explain 10 % to 25 % of the snow cover variance in model simulations, with a dominant forcing from the tropical and North Pacific SST during this period. In terms of the climate influence of the snow cover anomalies, both observations and models show no robust links between the November and April snow cover variability and the atmospheric circulation 1 month later. On the other hand, the first mode of Eurasian snow cover variability in January, with more extended snow over western Eurasia, is found to precede an atmospheric circulation pattern by 1 month, similar to a negative Arctic oscillation (AO). A decomposition of the variability in the model simulations shows that this relationship is mainly due to internal climate variability. Detailed outputs from one of the models indicate that the western Eurasia snow cover anomalies are preceded by a negative AO phase accompanied by a Ural blocking pattern and a stratospheric polar vortex weakening. The link between the AO and the snow cover variability is strongly related to the concomitant role of the stratospheric polar vortex, with the Eurasian snow cover acting as a positive feedback for the AO variability in winter. No robust influence of the SIC variability is found, as the sea ice loss in these simulations only drives an insignificant fraction of the snow cover anomalies, with few agreements among models.