bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of a reaction rate of chemistry module through a scientific approach to science
Authors:   Master of Science Education, Faculty of Teaching and Education, Cenderawasih University, Jayapura-99351, Indonesia, Siregar Tiurlina
Published: December 2023

Module development is very important in chemistry learning. The lack of modules as teaching materials is an obstacle in learning chemistry, especially the reaction rate material. Therefore this study aims to develop and validate the feasibility of the chemistry module on the reaction rate material through a scientific approach, as well as to assess how students and teachers respond to the product being developed. The research and development (R&D) method is the method used and ADDIE is the development model applied as the methodology. The sample in this study was 15 students. The sampling technique is saturated samples. Modules are validated by material and media validators and then validated by teachers and asked for responses from students. Data is processed using SPPS Reaction rate as the subject of this research. The developed module is very feasible to be applied in chemistry learning on reaction rate material, according to the results of the data analyzed. The material validator gave an average score of 91.77% (very feasible), the media validator 90.48% (very feasible) and the teacher's response was 99.07% (very good) and the students' response to the developed module was 97.50% (Very good).
Mental model of the influence of reactant properties on reaction rate
Authors:   Department of Chemistry Education, Faculty of Mathematics and Natural Sciences Education, Universitas Pendidikan Indonesia, Bandung-40154, Indonesia, Rahayu Iqlima , Wiji Wiji , Yuliani Galuh , Widhiyanti Tuszie , Mulyani Sri
Published: December 2023

Reaction rate is still considered difficult by students because it contains abstract concepts and mathematical equations, so students' mental models are not complete. To connect the three levels of representation in the process of addressing chemical problems, learning has to employ mental models as a whole. Therefore, this study aims to obtain students' mental models regarding the influence of reactants properties on reaction rates. This research uses a qualitative descriptive method with the Mental Model Diagnostic Test-Interview About Event (MMDT-IAE) instrument. Based on the research results, there are two types of mental models, namely Partial Understanding (PU) and Partial Understanding with Certain Misconceptions (PU/SM). The effect of surface area on reaction rate, students 1, 2, 3, 4, 6, and 7 answered correctly but could not connect the three levels of representation, while student 5 could not explain the relationship between effective collisions and reaction rate. The influence of structure on reaction rates, students 1, 2, 3, 4, and 7 can answer structure, reactivity and collision theory, while student 5 cannot explain collision theory. Students 1, 4, and 7 can answer all the probing questions but cannot connect the three levels to the influence of ionization energy on the reaction rate. The conclusion of this research is that students' mental models regarding the influence of reactant properties are not complete and there are students who experience misconceptions. The implications of this research are as a basis for teachers to design appropriate learning strategies.
The effect of calcium oxide addition from feather clam shells on porosity and water adsorption geopolymer composite bricks
Authors:   Department of Chemistry, Universitas Negeri Medan, Medan-20221, Indonesia, Nurfajriani Nurfajriani , Wahyudi Yohansen
Published: December 2023

The purpose of this study was to study the effect of adding CaO (calcium oxide) from clam shell ash on physical properties such as density, porosity and water absorption on geopolymer composite bricks. Geopolymer composite bricks are made by mixing sand, geopolymers synthesized from fly ash with NaOH and Na2SiO3 and calcium oxide calcined from feather clam shell which is printed in cylinder form. The bricks are then cured for 28 days and physical tests are carried out in the form of density, water absorption and porosity tests. The results showed that the most optimal addition of CaO is 7.5% for the physical properties of geopolymer composite bricks with a density value of 1.80 gr/cm3, a porosity value of 10.30% and a water absorption capacity of 4.68%. The value has filled the quality standard 1st for bricks set by Indonesian National Standard (SNI).
PEMODELAN TOPIK DALAM AL-QUR'AN MENGGUNAKAN LIBRARY BERTOPIC PADA MODEL BAHASA BERT
Authors: Herwinsyah Herwinsyah
Published: December 2023

Al-Qur'an adalah kitab suci dalam agama Islam yang terdiri dari 114 surah dan 6236 ayat. Isi Al-Qur'an telah dikategorikan ke dalam berbagai kategori oleh para ulama besar dari seluruh dunia, termasuk hukum, adat (perang), kenikmatan, sejarah, dan kehidupan setelah kematian. Namun, apakah pembagian ini sesuai dengan apa yang dikatakan dalam Al-Qur'an? Beberapa negara juga berusaha untuk mencari isu-isu yang terkandung dalam Al-Qur'an, dan ada banyak perbedaan dalam topik yang muncul dari satu negara ke negara lain. Berdasarkan studi ini, para peneliti mencoba untuk melihat isi Al-Qur'an dengan menerapkan pendekatan metode Deep Learning dengan menggunakan Library model bahasa BERT (Bidirectional Encoder Representations from Transformers), khususnya BERTopic, untuk seluruh 6236 ayat Al-Qur'an sebagai dataset. Berdasarkan penelitian ini ditemukan setidaknya ada 8 topik yang banyak dibahas didalam Al-quran.
Notas e relatos sobre o I Fórum de Autoavaliação do Programa de Pós-Graduação em Ciências da Religião da Pontifícia Universidade Católica de Campinas (PUC-Campinas)
Authors: BARROS Douglas Ferreira , PROVINCIATTO Luís Gabriel , KIRCHNER Renato
Published: December 2023

Esta nota descreve os trabalhos realizados ao longo da V Jornada Científica, I Fórum de Autoavaliação e I Jornada de Egressos promovida pelo Programa de Pós-graduação Stricto Sensu em Ciências da Religião da Pontifícia Universidade Católica de Campinas (PUC-Campinas) nos dias 23 e 27 de outubro de 2023, em formato híbrido e aberto ao público em geral. Ela está dividida em duas partes, seguindo as duas principais atividades do evento: 1) síntese dos dados coletados para o I Fórum de Autoavaliação; 2) mesas redondas com egressos. O objetivo desta nota é, em primeiro lugar, registrar e dar a conhecer à comunidade acadêmica, sobretudo, à pertencente às áreas de Ciências da Religião e Teologia, os dados recolhidos a partir da experiência dos egressos, do corpo técnico-administrativo, do atual corpo discente e do corpo docente deste Programa de Pós-graduação. Isso será realizado, por um lado, por meio de uma descrição das atividades e uma síntese das contribuições e, por outro, pela transcrição de trechos de relatos de egressos convidados para tal evento.
A Study on the Educational Significance of Tourism Travel Through Yeolha-ilgi(熱河日記)
Authors:   Korea Univ. Institute of Educational Research, Choi Jin , Oh Kimyoojin , Jin Sang-hun , Shin Chang-ho
Published: December 2023

The purpose of this study is to re-examine the meaning of tourism travel in terms of an educational perspective, focusing on Park Ji-won's Yeolha ilgi. Tourism travel is the process of giving meaning to and documenting everything experienced in an unfamiliar place, away from everyday life.
It can be reinterpreted as a purposeful journey that presupposes application in life. In addition, it raises the problem of various cruises and recreation in life, expanding knowledge at the personal and social level, and challenges and reflections in life. Therefore, tourism travel in a broad sense is in contact with the nature of life, so the educational perspective is deeply projected and needs to be reinterpreted realistically accordingly.
As a result of reviewing Yeolha ilgi, Park Ji-won's experiential tourism trip has a multidimensional educational meaning that gives an opportunity to awaken life, motivates to consider and reflect on life, and practices and applies communication and convergence between cultures to the real world. In short, tourism travel is a journey of human life in a broad sense, and it is judged to have educational significance in that learning is constructed through the process and the convergence of each stage of the journey.
Contribution to the knowledge of Parichoronyssus bakeri Morales-Malacara and Guerrero, 2007 (Mesostigmata: Macronyssidae): new locality and host-association records with additional molecular data
Authors: Mello-Oliveira Victor de Souza , Jacinavicius Fernando de Castro , Guerro-de-Souza Mariane , Dornelas Júnior Leormando Fortunato , Castro-Santiago Ana Carolina , Calchi Ana Cláudia , Lourenço Elizabete Captivo , Dowling Ashley P. G. , Famadas Katia Maria , André Marcos Rogério , Camargo Luis Marcelo Aranha , Barros-Battesti Darci Moraes , Bassini-Silva Ricardo
Published: December 2023

The mite genus Parichoronyssus Radovsky (Mesostigmata: Macronyssidae) comprises twelve known species found parasitizing bats in the New World. This study aimed to identify morphologically and molecularly macronyssid mites collected from bats and kept as backlog in the tissue bank (-80C) at the Acarological Collection of the Butantan Institute (IBSP). After the examination, the material was listed and identified as Parichoronyssus bakeri Morales-Malacara and Guerrero. Here, we were able to provide diagnostic microscopic images for the females of this species, as well as molecular information (18S rRNA and 16S rRNA) that were deposited in Genbank for reference. New locality records were also provided for P. bakeri in Rio de Janeiro and Rondônia States, Brazil.
Digital twin-oriented dynamic optimization of multi-process route based on improved hybridant colony algorithm
Authors: Chen Zhaoming , Zou Jinsong , Wang Wei
Published: December 2023

To improve the dynamic adaptability and flexibility of process route during manufacturing, a dynamic optimization method of multi-process route based on improved ant colony algorithm driven by digital twin is proposed. Firstly, on the basis of part manufacturing features analysis, the machining methods of each process are selected, and the fuzzy precedence constraint relationship between machining metas and processes is constructed by intuitionistic fuzzy information. Then, the multi-objective optimization function driven by digital twin is established with the optimization objectives of least manufacturing cost and lowest carbon emission, also the ranking of processing methods is optimized by an improved adaptive ant colony algorithm to seek the optimal processing sequence. Finally, the transmission shaft of some equipment is taken as an engineering example forverification analysis, which shows that this method can obtain a process route that gets closer to practical production.
Valuing conservation and socio-environmental services on an Amazon frontier: the Extractive Reserves of the Terra do Meio
Authors: Rezende Roberto , Schwartzman Gabe , Straatmann Jefferson , Postigo Augusto
Published: December 2023

In the Brazilian Amazon, forest conservation has relied on the presence of 'traditional communities' and Indigenous peoples to secure legally demarcated protected areas from deforestation and biodiversity degradation. Facing pressures for land-use change from a rapidly encroaching frontier of resource extraction and commodity production, there is no guarantee that Indigenous peoples or traditional communities will continue to occupy these forests or continue to fulfill the role of forest protectors except under certain conditions. In this article, we detail the case of the extractive reserves of the Terra do Meio and consider what conditions would be needed for traditional communities to continue to occupy and protect protected areas. Employing an agrarian political ecology approach, we draw on years of ethnographic research in this area to argue that forest peasant livelihoods, which revolve around the forest areas of use, produce both ecological and cultural diversity in the forest. We term this socio-ecological arrangement the productive system of the colocação, the system and geographies of forest peasant livelihoods that upholds and is upheld by diverse socio-ecological relationships. Contemporary forest conservation regimes, however, have largely failed to incentivize and value these forest peasant livelihoods in ways that would sustain them in the face of commoditizing frontier pressures. Any mechanisms that pay for forest conservation should remunerate communities for their entire socio-ecological relationships, those relationships that are upheld through forest peasant livelihoods, not simply their products. We propose an approach to valuing forest communities' socio-environmental services, and we argue that such valuation would be more effective for conservation and cultural/ecological diversity than existing proposals for payments for ecosystem services (PES).
Brain magnetic resonance imaging and computed tomography findings in cats and dogs with central nervous system cryptococcosis in Australia: 23 cases (2009–2020)
Authors: Jacobson Else , Podadera Juan , Siow Jia Wen , Woerde Dennis J. , Thompson Mary F. , Tebb Anna , Valle Zoe della , Collins David , Malik Richard
Published: December 2023

OBJECTIVE

To describe the imaging findings in Australian cats and dogs with CNS cryptococcosis.

ANIMALS

23 cases (10 cats; 13 dogs) with CNS cryptococcosis and brain MRI or CT studies available to review.

METHODS

Retrospective, multi-institutional case series. Brain MRI or CT studies were reviewed by a board-certified radiologist. Imaging findings were described and the differences between cats and dogs explored.

RESULTS

Morphologic features were consistent with extra-axial lesions in all (n = 13) dogs and either intra-axial (5/10) or extra-axial (4/10) lesions in cats, with 1 cat having no detectable lesions in low-field brain MRI scans. Meningeal abnormalities were most common, followed by forebrain and cerebellar lesions. Intracranial MRI lesions were typically T2 hyperintense and T1 hypo- to isointense. Four cases had T2 hypointense lesions affecting the brain, sinonasal cavity, or regional lymph nodes. Intracranial CT lesions were mostly soft tissue attenuating. Contrast enhancement was present in all cases with contrast series available, with ring enhancement shown only in cats. Osteolysis was more common in dogs than cats, particularly affecting the cribriform plate. All 13 dogs and many (6/10) cats had at least 1 lesion affecting sinonasal or contiguous tissues, and locoregional lymphadenomegaly was common (7/10 cats; 11/13 dogs).

CLINICAL RELEVANCE

Imaging lesions in cryptococcal meningoencephalitis were extra-axial in dogs but could be intra-axial or extra-axial in cats. Careful examination for extracranial lesions (sinonasal, retrobulbar, facial soft tissue, tympanic bullae, or locoregional lymph nodes) is important to provide alternative safe biopsy sites. T2 hypointense lesions, while rare, should prompt consideration of cryptococcosis.
Seroprevalence of Schmallenberg Virus in Sheep in Belgrade Epizootic Area
Authors: Veljović Ljubiša , Maksimović Zorić Jelena , Glišić Dimitrije , Nišavić Jakov , Maletić Jelena , Milićević Vesna
Published: December 2023

Schmallenberg disease is an infectious disease of cattle, sheep, and goats of viral aetiology caused by the Schmallenberg virus that belongs to the family Bunyaviridae and the genus Ortobunyavirus. Schmallenberg disease is a vector-borne disease transmitted by midges from the genus Culicoides but also by other hematophagous insects. The disease has a seasonal character and most often occurs in the warm months, from late spring to autumn. In this study, we investigated the seroprevalence of Schmallenberg disease in sheep in the epizootic area of Belgrade in the period from 2017 to 2022. A total of 600 sheep serums from the serum bank were tested, 100 serum samples from each year. Sera were tested by commercial ELISA test for the detection of specific antibodies against the Schmallenberg virus. The results showed an average annual seroprevalence of 24.5% in sheep in the Belgrade area in these six years with an increasing trend predicted for the next years.
Clearance of Trehalose Lyophilized Platelets in Mice
Authors: Kim Mu-Young , Han Hyun-Jung
Published: December 2023

The utilization of stored platelet transfusion has emerged as an effective approach in the management of thrombocytopenia. However, the limited availability of fresh platelets in veterinary medicine due to the challenging storage requirements poses a significant constraint. Lyophilized platelets offer extended shelf-life and convenient storage options, enhancing their accessibility for thrombocytopenic patients. However, only a limited number of studies have examined the clearance and survival rate of transfused lyophilized platelets, particularly regarding the lyophilization technique utilizing trehalose as a platelet stabilization agent. The objective of this study was to assess the recovery and survival rate of trehalose lyophilized platelets within the circulatory system. To investigate these parameters, CMFDA-labeled lyophilized platelets were administered to mice, and their recovery and survival rates were analyzed. Flow cytometric analysis revealed the rapid clearance of lyophilized platelets from the systemic circulation. The immediate post-infusion percent recovery of labeled platelet particles was 42.7 ± 8.15 %. The average survival rates at post-infusion time points at 15, 30, 45, and 60 minutes were 28.2 ± 4.31, 14.5 ± 3.56, 5.1 ± 2.02, and 0.82 ± 0.57, respectively. The calculated mean half-life was 8.39 ± 0.44 minutes. The most pronounced decrease in labeled lyophilized platelet count occurred during the 30-minute timeframe immediately following infusion. Subsequently, over 99% of lyophilized platelets were eliminated after 60 minutes post-infusion. These findings indicate that higher dosages and more frequent administration of trehalose lyophilized platelets might be necessary to achieve a therapeutic effect comparable to that of fresh platelets.
Mathematics Connection Between CMM and CNC Parameter Setup
Authors: Serban Petru Emanoil , Stanase Iulian , Peti Ferencz
Published: December 2023

The purpose of this article is to establish a new approach for the use of CMM in production serial validation. Even the scope of CMM’s is to give results based on drawing requirements, the capability of this measurement system, can ensure with an advanced program development the parameter setup of CNC’s during setup or any changeover stages. The preparation and the scope of this development is to analyze the mathematic approach of coordinate systems which must be converted from a static coordinate system to a new system that is changed at every CNC clamping operation and rotation of any axis.
Assessment on the Acoustic Comfort Inside the Heavy Vehicle Cabin
Authors: Căşeriu Bianca , Blaga Petruța
Published: December 2023

Noise, vibration, and harshness (NVH) researchers spend inexhaustible resources of materials, time and money in determining the objective factors that are important in ensuring acoustic comfort in vehicles. In this paper, the factors that directly influence the interior acoustic pressure level in a heavy-duty vehicle were investigated. It was determined using specific descriptors and different units of measurement in assessment of sound levels and the impact generated by noise, the level of interior acoustic pressure and particular values of some prominent sources of noise in the operation of vehicles (engine, HVAC system), taking into account the factors of insurance and thermal comfort, with the aim of determining the cumulative impact at the board of heavy vehicles due to noise.
Topic Identification in Voice Recordings
Authors: Simo Zsuzsa
Published: December 2023

The paper shows the understanding of a topic recognition problem like the speech recognition system based on Natural Language Processing (NLP) and the steps of its implementation of a rules-based approach, which is able to classify given audio materials based on predefined topics in real-time. During implementation, a statistical vocabulary was developed. Google Speech API (Application Programming Interface) was employed for subtitling audio materials, and the most ideal time frame for reception was identified through several experiments. The motivation of this work is based on the deficiency of similar simple systems for Hungarian topic recognition, even though numerous international languages already utilize multiple Automatic Sound Recognition (ASR) systems.
Accuracy and validity of space analysis and irregularity index measurements using digital models
Authors: Goonewardene Roy W. , Goonewardene Mithran S. , Razza John M. , Murray Kevin
Published: December 2023

Background

Digital copies of study models may avoid the storage and retrieval issues of plaster study models, but measurements made on digital models may not be as accurate as measurements made on traditional study models.

Aim

To determine the reliability and validity of tooth size–arch length discrepancies (TALD), irregularity indices and arch lengths (four- and six-segment analyses) measured directly on study models with digital calipers with the same measurements measured on digital copies of the study models with proprietary software.

Methods

The irregularity indices and TALDs (four- and six-segments) were measured on 50 sets of pretreatment plaster models. The plaster models were measured using manual calipers with a digital readout. The models were then couriered to OrthoCAD and digital copies emailed to the authors. The digital models were measured with the proprietary software provided with the digital models. Repeat measurements of the TALDs and the irregularity indices were subjected to intraclass correlations (ICC) to assess the reliability. The least squares means of variation was used to assess validity and the impact of measuring arch length (four- and six-segments) on the digital models, and the implications on the TALDs.

Results

There were high correlations (ICC) ranging from 98.6–99.9 per cent for both the irregularity indices and the TALDs. The choice of manual over computer and four-segment over six-segment analysis had a significant effect when measuring lower arch lengths (p < 0.05), but they had no effect on the upper arch findings.

Conclusions

Reliable measurements of the irregularity index and the TALD can be made on digital models. Computer measurements of TALDs on digital models were more consistent than manual measurements of TALDs on plaster models. Six-segment analyses of lower arch lengths on digital and plaster models gave more consistent findings than the four-segment analyses.
Comparison of fluoridated apatites with pure hydroxyapatite as potential biomimetic alternatives to enamel for laboratory-based bond strength studies
Authors: Jones Steven P. , Cheuk Godwin C.Y. , Georgiou George , Moles David R.
Published: December 2023

Aim

To investigate whether fluoridated apatites have a shear bond strength which more closely equates to that of natural enamel than pure hydroxyapatite, making them potentially useful as biomimetic alternatives to natural enamel for ex vivo laboratory bonding studies.

Methods

Discs of pure hydroxyapatite, pure fluorapatite and a 1:1 mixture of hydroxyapatite-fluorapatite were produced by cold uni-axial pressing. The discs were sintered at 1300°C, embedded in epoxy resin, ground and polished. X-ray diffraction technique was used to analyse the purity of the apatites. Scanning electron microscopy was employed to investigate the etch patterns of the apatite specimens. Ninety-six upper left central incisor brackets were bonded to each of the three groups of discs. Shear bond strengths were determined by debonding the brackets using a loaded metal jig in an Instron Universal Testing Machine. The sites of bond failure were recorded using the Adhesive Remnant Index. One-way analysis of variance (ANOVA) and Bonferroni post-hoc comparisons were used to determine statistical differences between the mean shear bond strengths of the three specimen groups.

Results

The mean shear bond strength of pure hydroxyapatite (20.44 MPa; SD: 8.03; 95% CI: 18.81, 22.07) was significantly higher than those of fluorapatite (13.13 MPa; SD: 6.76; 95% CI: 11.76, 14.50) and hydroxyapatitefluorapatite (13.62 MPa; SD: 7.03; 95% CI: 12.19, 15.04) (p < 0.001). There was no statistically significant difference in shear bond strengths between fluorapatite and hydroxyapatite-fluorapatite (p > 0.99), and both were below the normal range ascribed to enamel (15–20 MPa). More than 90 per cent of the fluorapatite and the hydroxyapatite-fluorapatite specimens demonstrated bond failure at the substrate-adhesive interface, while only one-third of the hydroxyapatite specimens exhibited bond failure at that interface.

Conclusion

Pure fluorapatite and hydroxyapatite-fluorapatite specimens offer no advantage over pure hydroxyapatite as a suitable artificial substrate for ex vivo bond strength testing.
Microbiologically-influenced corrosion of orthodontic alloys: a review of proposed mechanisms and effects
Authors: Papadopoulou Konstantina , Eliades Theodore
Published: December 2023

Aims

To summarise the currently available evidence on the effects of micro-organisms on the corrosion processes of biomaterials, with specific relevance to orthodontic alloys.

Methods

Factors related to the micro-environmental milieu, conditions, site characteristics, microbial species, enzymes and compounds released in response to their attachment to surfaces and formation of biofilms are analysed with respect to their contributory roles in corrosion.

Results

Application to orthodontics is projected from relevant evidence, albeit hypothetical due to the lack of extensive investigations of the subject. The micro-organisms involved and effects observed in orthodontic alloys are summarised. Finally, protective measures are proposed to minimise the potential for corrosion processes in orthodontic patients.
Porcelain brackets during initial alignment: are self-ligating cosmetic brackets more efficient?
Authors: Miles Peter , Weyant Robert
Published: December 2023

Objective

To compare the effectiveness of a self-ligating (SL) porcelain bracket with a conventional porcelain (CP) bracket tied with ligatures for initial alignment in the upper arch, to compare the discomfort of both bracket – archwire combinations and to compare the times taken (both assisted and unassisted) to untie and ligate both bracket – archwire combinations.

Methods

Sixty nonextraction patients were randomly assigned to either a group with CP brackets on the upper six anterior teeth and conventional metal brackets on the premolars and first molars, or a group with SL porcelain brackets on the anterior teeth and SL metal brackets on the posterior teeth. The CP brackets were tied with coated ligatures. The irregularity index was measured at the start of treatment and at the first recall 10.7 weeks later. Discomfort was recorded over the first week with a Likert scale and the times to untie and ligate the six anterior porcelain brackets (assisted and unassisted) were recorded.

Results

There were no differences in irregularities at the start of treatment (p = 0.91) or 10.7 weeks later (p = 0.12). No significant difference in discomfort was found between the bracket types (p = 0.90). The porcelain SL brackets were significantly faster (p < 0.001) to untie and ligate than the CP brackets with ligatures.

Conclusion

Porcelain SL brackets were faster to untie and ligate by 22 seconds per bracket, but there were no significant differences in the alignment achieved or discomfort experienced.
Effects of rapid-slow maxillary expansion on the dentofacial structures
Authors: Kilic Nihat , Oktay Hüsamettin
Published: December 2023

Background

To date, no study has determined if rapid followed by slow maxillary expansion (also termed ‘semi-rapid’ expansion) has the same effects on the dentofacial skeleton as rapid maxillary expansion.

Objective

To determine the vertical and sagittal changes in the facial skeleton during and following rapid then slow maxillary expansion (R-SME).

Methods

Bonded maxillary expansion appliances were used to separate the maxillae over six days by activating the midline screws twice a day. The screws were then activated three times a week until sufficient expansion was obtained (Mean: 3.4 months) and used as retainers for six months. Cephalometric measurements at the start of expansion (T1), end of expansion (T2) and end of retention (T3) were compared with paired t-tests. Pearson correlation coefficients were used to determine the associations between the expansion (dental and skeletal) and the cephalometric changes.

Results

The maxillae moved forward a small, but statistically significant, extent during expansion. The upper molars were extruded and the mandible ‘rotated’ downward and backward. Although the vertical height of the facial skeleton (SN/GoMe, S-Go, N-Me, ANS-Me) increased significantly during expansion, the changes were small and highly variable. Some dimensions (SN/GoMe) relapsed during retention, while others (S-Go, N-Me) increased.

Conclusions

Rapid then slow maxillary expansion caused a small, but statistically significant, forward movement of the upper facial skeleton, a small downward and backward rotation of the mandible and a small increase in face height. The changes were similar to those found during rapid maxillary expansion.
The effect of a Clark twin block on mandibular motion: a case report
Authors: O’Shea Catherine , Quick Andrew , Johnson Gillian , Carman Allan , Herbison Peter
Published: December 2023

Aims

To investigate mandibular motion in six degrees of freedom before, during and after twin block treatment in one individual.

Methods

The appliance was worn for eight months, and motion recordings, using a 12-camera opto-electric system, were captured prior to placement of a twin block appliance and 2, 4, 14 and 52 weeks after insertion.

Results

The wide variations in mandibular motion that accompany twin block wear disappeared post-treatment, except for an increase in anteroposterior movement of the mandible.

Conclusion

Twin block therapy appears to affect mandibular motion temporarily.
Orthodontic treatment of a transmigrated mandibular canine: a case report
Authors: Trakyali Göksu , Çildir Şule Kavaloğlu , Sandalli Nüket
Published: December 2023

Background

Intraosseous migration of a lower canine across the midline is a rare dental anomaly. The treatment options include: forced eruption of the unerupted tooth using orthodontic traction, autotransplantation, extraction followed by prosthetic replacement.

Aim

To report the management of a transmigrated lower right canine.

Method

The treatment involved surgical, orthodontic and cosmetic dental treatment. No permanent teeth were extracted.

Results

The transmigrated canine was placed between the left central and lateral incisors and the crown recontoured to simulate a lateral incisor. An acceptable aesthetic and functional outcome was gained.

Conclusion

Transmigration is a rare dental condition that can be treated successfully with a collaborative effort from several dental disciplines.
Systematic Review Regarding The Difference In Dental Plaque Accumulation Associated With Fixed Orthodontic Retainers And Vacuum Formed Removable Retainer.
Authors: Muggianu Enrica , Musilli Damiano , D’Andrea Antonella
Published: December 2023

Introduction: Orthodontic retention is fundamental to prevent tooth relapse after the treatment. Plaque accumulation is a serious concern, affecting periodontal health. In this study, the effects of fixed retainers with removable vacuum formed retainers on plaque accumulation by evaluating the Plaque Indices were compared.

Aim of the study: The aim of the present systematic review is to comprehend which orthodontic retainer between fixed retainers and the removable vacuum formed retainers results in the least amount of plaque accumulation.

Material and Methods: For evaluation a literature review was carried out by all the reviewers by consulting PubMed, ScienceDirect, The Lancet, Sciendo, and Google Scholars electronic databases for biomedical and health literature. The articles were selected from 2017 onwards with the restriction of the English language.

Results: 5 studies were selected, reporting on a total of 249 patients both males and females who after debonding orthodontic appliances followed up with either a fixed or vacuum formed retainer.

Conclusion: Within their limits, the results seem to show that patients who wear Vacuum Formed Retainers tend to accumulate less plaque than the ones that wear Fixed Retainers. However, subsequent studies are required to address this matter and draw a definitive conclusion.
Study on the conditions of color determination in dentistry.
Authors: Barothi Szabina , Bardocz-Veres Zsuzsanna , Martha Krisztina Ildikó , Kerekes-Mathe Bernadette
Published: December 2023

Introduction: Several variables can impact the choice of shade. Having a thorough understanding of these factors and following the proper selection technique is crucial for achieving favorable esthetic results. Aim of the study: To review the characteristics of esthetic perception of teeth in different lighting conditions, by individuals with different levels of experience in dentistry. Material and methods: Thirty volunteers, dentistry students, and general dentists were recruited. The participants were asked to determine the color of 4 mock-ups containing artificial teeth, under standardized conditions. Therefore, the samples were introduced in a custom-made box and illuminated by two different light conditions (4300 K and 5500 K), and three different colors (black, gray, and pink) were selected as background colors. Results: Our results showed a statistically significant difference between the two examined light conditions, the number of correct color determinations was significantly higher under the light with a color temperature of 5500K (p<0.00001). It can be seen that the gray background color proved to be statistically significantly more beneficial than the black and pink background colors. Conclusions: Among dentistry students and practitioners, environmental changes that affect shade determination have been demonstrated. Further research is still necessary regarding the perception of the esthetic expectations of dental treatments for color determination.
Clinical and practical aspects of the gingival smile. A questionnaire-based survey.
Authors: Vlasiu Andreea , Friciu Cristina-Larisa , Lazăr Ana-Petra , Dako Timea , Lazăr Lumința
Published: December 2023

Introduction: One of the main elements of facial esthetics is represented by the smile. A harmonious proportion between the elements of facial esthetics is an important subject of interest in dentistry. Aim of the study: This research aims to evaluate the impact of the gummy smile on future dental practitioners. Materials and Methods: A survey containing 16 questions was designed to find out the students’ perceptions about the ideal smile and if the gingival smile is considered youthful or unpleasing. The impact on their self-esteem, their willingness to change the gummy smile or not, the nonsurgical and surgical methods of treatment were also evaluated. Results: 212 answers were recorded and analyzed. Nearly three quarters (70.3%) of the respondents believe that having a gummy smile is unesthetic, while only 29.3% considered it to be a sign of youth. Self-esteem can be affected by having a gingival smile, but, according to the results, most of the students (45.8%) said that their daily lives have not been affected by it, 40.6% said that in a small amount, 10.4% said that their self-assurance has been very affected and only 3.3% admitted that the gummy smile distressed their confidence. When asked if they were willing to correct their gingival smile, 51.4% were open to improving it while 48.6% would not change it. Conclusions: Among dentistry students, excessive showing of the gums is believed to be unesthetic rather than a sign of youthfulness. The respondents are generally not affected in their daily life by having a gummy smile. Education regarding the methods of correcting it still needs to be addressed amongst future dental practitioners.
The power of social media in Albanian businesses
Authors: Bekteshi Luan
Published: December 2023

The orientation of society towards the so-called “digital age” has had a significant impact on social life and at the same time on economic life. This impact has been accompanied by the constant change of social behavior, orienting society towards a new approach to information technology. ICT and the Internet have helped to eliminate geographical, time and cost barriers, making life more dynamic.The increase in the number of Internet and social media users has affected the restructuring of the relationship between these users, their relationship with businesses, the way of doing business, the way of education, job search, employment, entertainment, etc. The growing popularity of social networks has made it possible to create a new economic environment based on collaboration and communication. Nowadays, social networks have become the most important communication channels. Everywhere in Albania, social networks are used to communicate with acquaintances, to set up business, to communicate with customers and for many other reasons. Social media has come a long way from connecting people only to playing a crucial role in all businesses. People moved online, and they are very social. And brands have noticed the change, of course. Previously, the presence of a business was signed by a physical store and newspaper ad. But in the digital age, the business reputation lives and dies for its position on social media. Social media has the ability to drive buyers to a new product or a good deal. But not only that, social networks create a sense of community and involve people in a way of shopping.
The Nexus between Economic Features and Contraceptive Switching in Indonesia
Authors: Rajagukguk Wilson , Gultom Fajar Lamhot , Alfarabi Muhammad
Published: December 2023

Objective

This study aims to examine the association between economic characteristics and contraceptive switching in Indonesia.

Methods

The study employed monthly contraceptive calendar data from the results of the 2017 Indonesia Demographic and Health Survey. The unit analyzed the contraceptive use during 3-62 months in women of the age between 15-49. The data was analyzed using a Gompertz proportional hazards model. The dependent variable was the duration of the risk period up to the incidence of the contraceptive switching. Main used variables were based on economic, demographic and sociocultural factors.

Results

The 12-month contraceptive switching rate was higher among women who had a cellular phone, a bank account, ever used the internet in the last year, were currently employed and came from households in highest wealth quintile. These economic features significantly influenced the risk of switching contraception in Indonesia after controlling for demographic and sociocultural factors.

Conclusions

After controlling for demographic and sociocultural factors, a higher risk of contraceptive switching was associated with having a cellular phone and bank account and being from households in highest wealth quintile. Higher contraceptive switching risk was also associated with switching contraceptive pills, intent of limiting births, having two or three children, being of age 15-24 years, having higher education, having exposure to family planning messages via internet, having husbands who decided about the wife’s earnings, earning more than husband and not owning a house. The nexus between better economic status and contraceptive switching may imply the need to formulate and implement suitable family planning policies and strategies to reduce contraceptive switching among the better-off economically and more empowered women in order to prevent unwanted births.
Covid Crisis Experiences of Hungarian Small Family Farms Engaged in Multifunctional Agriculture
Authors: Ujj Apolka , Pércsi Kinga Nagyné , Bazsik István , Harkányi Annamária , Jancsovszka Paulina
Published: December 2023

The paper presents the experiences and survival strategies of small family businesses engaged in multifunctional agricultural activities in Hungary during the COVID crisis. The following topics were examined: human resources, supplier-customer relations, production and sales, distribution channels, inputs and outputs prices, strategies and business models, and subsidies in agricultural sectors combined with financial assistance. The study was conducted using a qualitative research methodology, with the help of structured in-depth interviews made with 22 small family businesses. The results show that multifunctional family businesses performed well. The health consequences and the measures taken by the government caused disruption but did not completely hinder the operation of businesses.
Measuring the Gender Gap Index using socio-economic variability: A case study based on Modified Global Gender Gap Index (Sehore Municipal Council, India)
Authors: Siddiqui Farheen , Khan Jabir Hasan
Published: December 2023

The present paper deals with the limited aspects of calculation of gender gap in terms of socio-economic variability measures in Sehore Municipal Council (Sehore M.C.), Madhya Pradesh, by partially utilizing Global Gender Gap Index of the World Economic Forum (WEF). Pronounced gender inequality in terms of Indian scenario and thrust of Sustainable Development Goals (SDGs) introduced by the United Nations, on Gender Equality (Goal-5), have made it pertinent to assess gender gap in terms of socio-economic variability. The present study, therefore aims to measure the gender inequality in the upcoming city of Sehore, a class I city as per 2011 Population Census, in Madhya Pradesh. The study adopts the methodology of the Global Gender Gap Index of the WEF, and applies it to 15 variables over 3 sub-indices obtained from the household survey of 940 women across selected 17 localities covering 4 wards in Sehore M.C. The methodology includes the standardization of the selected variables and preparation of the composite index. As per the composite index mapping, 35% of the localities belong to very poor category, while 29% of the localities belong to poor category. Nearly 12% of the localities belong to each satisfactory, good and very good categories. The study concludes with suggestions for the promotion of gender parity in the city apart from highlighting the ongoing activities of the government for the women’s empowerment in the Sehore city.
Assessing current use and visions for sacral complexes in a landscape: An example from Central Europe
Authors: Belčáková Ingrid , Jančoková Zuzana , Boltižiar Martin , Slobodník Braňo , Rácz Attila
Published: December 2023

A significant phenomenon of sacral complexes in a landscape is their cultural heritage dimension. They are part of historical landscape structures, representing a type of cultural landscape. In addition, they are often perceived as important landscape landmarks and symbols. In Slovakia (Central Europe), most such complexes are abandoned and deteriorated. In this context presented paper deals with the assessment and possible future human use of Calvary in Hliník nad Hronom (Slovakia) in order to preserve it for future generations. A central aspect of our research work presented in this contribution is to elaborate a sustainable and feasible concept for the Calvary following the integrated approach of its revitalization. Firstly, we analyzed Calvary´s historical and regional setting with the help of a thorough review of literature, historical maps, and pictures. Then we evaluated architectural, landscape, and vegetation values, as well as landscape structure changes using relevant methodologies. Based on this evaluation, much fieldwork, and social survey we were able to identify the current problems of the place connected with abandonment and use, evaluated values, socio-economic factors, and preservation policies. Subsequently, we prepared a future concept for the Calvary following the selected criteria and distinguishing features and looking at the Calvary as a result of collective work. Finally, recommendations were formulated for legal framework and spatial planning procedures in order to enforce better preservation of values of sacral complexes in the country.
Differentiation of developmental priorities of different-sized municipalities in the period of acceleration of developmental changes – an example of a mining region
Authors: Hlaváček Petr , Mata Martin , Zdražil Pavel
Published: December 2023

The aim of the research was to assess the developmental priorities of municipalities as they reflect the current policy objectives of the Czech Republic and the European Union, with a focus on the Green Deal and accelerating developmental changes in the external environment. To this end, the key priorities of the Just Transition Fund programme, which is designed for structurally affected regions in the Czech Republic, were selected. Specifically, these included themes in the areas of energy, waste management, transport, brownfield revitalisation and education. The method for obtaining information on the attitudes of municipalities was a questionnaire survey in 160 municipalities within the Ústí nad Labem Region, which also helped to assess the differences between small and large municipalities. The research found that municipalities are prioritising development in energy and waste treatment. At the same time, small municipalities, with under 1000 inhabitants, are slower to develop projects than larger municipalities, and larger municipalities were also more aware of the importance of sustainability issues for future municipal development.
The Role of Digital Finance, Financial Literacy, and Lifestyle on Financial Behaviour
Authors: Yuneline Mirza Hedismarlina , Rosanti Maria Firnandya Christian
Published: December 2023

The development of technology and information provides convenience and many choices in making financial decisions. Many new and diverse financial products require people to have a better understanding of the process of using them. This is supported by financial literacy and an understanding of managing finances to avoid bad financial decisions. Technology adoption also leads to a rigorous lifestyle that makes them use digital services as a quick and useful tool for their activities. This study aims to examine the role of digital finance, financial literacy, and lifestyle on student’s financial behavior. This study used descriptive and verification method with a quantitative approach. The primary data was collected through questionnaires from student respondents in Bandung, West Java, Indonesia. The results of this study indicate that partially the use of digital finance has a insignificant effect on financial behaviour, but financial literacy and lifestyle has a positive significant effect on financial behaviour. Simultaneously digital finance, financial literacy, and lifestyle have a significant effect on students’ financial behavior. The study showed that the use of digital finance is only for transaction benefit not for behavioral change. It is expected to create awareness of their investment products and develop their application into more secure products in changing financial behavior.