bluuebunny/crossref_metadata_2025_split huggingface dataset:
Geography of migration motives: Matching migration motives with socioeconomic data
Authors: Baláž Vladimír , Lichner Ivan , Jeck Tomáš 
Published: October 2023

Abstract
Motives behind internal migration reported by internal migrants often differ from those assumed by standard economic and social theories. This research aims to narrow the gap between the stated motives and those suggested by human capital models. It relates the net migration rates by specific motives to socioeconomic and sociodemographic variables at the LAU 1 level in the period 1997–2021 in Slovakia. This research establishes that most of the stated motives behind internal migration (housing and family) differ from those assumed by human capital theories. This finding is valid for motives stated at the proximal level. The analysis of migration rates and housing supply indicates a substantial concentration of interdistrict migrants in suburban districts of affluent metropolitan regions. This finding resonates with assumptions on the latent importance of employment and income for internal migration.
Examining voter turnout using multiscale geographically weighted regression: The case of Slovakia
Authors: Kevický Dominik , Suchánek Jonáš 
Published: October 2023

Abstract
Voter turnout is an essential aspect of elections and often reflects the attitude of a country’s population towards democracy and politics. Therefore, examining the distribution of voter turnout and determining the factors that influence whether or not people will vote is crucial. This study aims to find significant factors that underlie the different levels of electoral participation across regions in Slovakia during the 2020 parliamentary elections. In this interpretation, special attention is paid to the ability of the main theories of voter turnout to explain the behaviour of Slovak voters. The primary analytical tool is multiscale geographically weighted regression, which represents an advanced local regression modelling variant. The results indicate that the multiscale geographically weighted regression is superior to the global ordinary least square model in virtually all aspects. Voter turnout is generally higher in economically and socially prosperous localities and regions, which is in line with the societal modernisation theory. Additionally, factors connected to mobilisation theory and the concept of ‘left behind places’ also proved to be valuable. However, in other cases, such as with the share of retirees and potential habitual voting, the outcomes were not overly convincing, and further research is required.
Effect of carbon fiber surface treatment with HNO3 and KOH on the interfacial bonding of PMMA resin composite
Authors: Jian Li 
Published: October 2023

Abstract
This work studied the surface, interface state and physicochemical properties of HNO3-treated and KOH-treated carbon fiber. Poly(methyl methacrylate) (PMMA) composites were prepared by the autoclave molding process using surface-treated carbon fiber as reinforcements. The physical and chemical states of the carbon fiber surfaces and the micro-interface properties and interlaminar shear properties of the composites were studied. The results show that the surface of the HNO3-treated carbon fiber has more groove structure and higher surface roughness and thus forms a better physical bond with the resin matrix. Although the oxygen-containing functional groups of the two carbon fibers are equivalent, the surface oxygen of the HNO3-treated carbon fiber is relatively high, which is beneficial to form a better chemical bond with the matrix resin, and the interfacial shear strength is about 14% higher than that of the KOH-treated carbon fiber composite.
The concept and algorithmic method of optimizing the „in situ” asphalt recycling processes
Authors: Tonciu Oana , Savaniu Ioan – Mihail , Francu Catalin , Mocanu Ștefan 
Published: October 2023

Abstract
The paper presents the result of research on choosing of options for technological equipments, processus based on the criteria of effective costs and operational energy.
Based on graph theory, the method of selecting the mechanization variant is designed to achieve predictable technical and economic indicators. Thus, the selection stage is the starting point for the technological processes and operational equipment of execution on the working front. In this case, in-situ cold recycling can be optimized with minimal costs and operating power.
The proposed graph has as main elements the nodes through which the simple technological processes associated with the variants of the technological equipments used are represented.
Each node of the graph contains the following information regarding the machine type, input/output size, evaluation and decision algorithm.
Finally, a case study for the Wirtgen equipment recycling technology system is presented.
Various Convexities and Some Relevant Properties of Consumer Preference Relations
Authors: Forrest Jeffrey Yi-Lin , Tiglioglu Tufan , Liu Yong , Mong Donald , Cardin Marta 
Published: October 2023

Abstract
The concept of convexity plays an important role in the study of economics and consumer theory. For the most part, such studies have been conducted on the assumption that consumer preferences are a binary relation that is complete, reflexive and transitive on the set X of consumption choices. However, each consumer is a biological being with multidimensional physiological needs so that possible consumptions from different dimensions cannot be compared by using preferences. By removing that unrealistic assumption, this paper examines how the various concepts of convex preferences and relevant properties can be re-established. We derive a series of 10 formal propositions and construct 6 examples to show that (a) a weighted combination of two possible consumptions is not necessarily comparable with any of the consumptions; (b) not every convergent sequence of a consumer’s preferred consumptions asymptotically preserves that consumer’s preference preordering; (c) not all preferences satisfy either positive multiplicativity or additive conservation; (d) three types of preference convexities – weak convexity, convexity and strong convexity – can all be introduced into general convex spaces. This paper concludes with some research topics of expected significance for future works.
Abraham Maslow’s hierarchical needs in No Friend but the Mountains: Writing from Manus Prison by Behrouz Boochani
Authors: Mustafa Goran Omar , Ahmad Hedayat Muhammad , Ghafor Omar Fouad 
Published: October 2023

The paper attempted to analyze the character of Boochani in his memoir No Friend but the Mountains: Writing from Manus Prison, in the light of Abraham Maslow’s Theory of Hierarchical Needs. Boochani wrote his novel while he was still locked in the Manus Island detention center. It narrates the story of a man who followed his dream to reach his dreamland. The study was carried out using a descriptive qualitative research methodology through textual analysis design. Since the study was text-based, a meticulous reading process of the text was done. We used the text as the primary source for data collection. Therefore, a portion of the sentences, paragraphs, and phrases related to the study’s objective were taken as examples and excerpts and analyzed using Abraham Maslow’s hierarchy of needs. The results revealed that Boochani, like all humans, was driven by physiological and psychological needs, ranging from the most fundamental to the most extreme. His journey aimed to get self-actualization but never could get it and hardly fulfilled other basic needs completely. Boochani’s voyage is depicted as a series of rising and falling waves. He occasionally satisfies some needs, but he never succeeds in meeting the need for self-actualization and self-esteem. And hardly does he fulfill the other three levels of the hierarchy of needs. His entire story serves as a metaphor for everyone who strives for self-actualization yet encounters obstacles.
Neoliberalism as a Producer of Precariousness and the Scenario of Domestic Workers in Manaus
Authors: De Souza Ariel Joan Santana , De Lima Roberta , Gomes-Souza Ronaldo , Da Silva Alexandre Cavalcante 
Published: October 2023

Objective: To investigate the influences of neoliberalism as an economic and social model in the material conditions and subjectivity of domestic workers in the metropolitan region of Manaus.

Theoretical benchmark: domestic work is a historically racialized and precarious profession in Brazil, and this precariousness is intensified by the neoliberal scenario of the global economy of subjectivation.

Method: qualitative research of inductive model was conducted with semi-structured interviews and submitted to content analysis for study.

Results and conclusion: in the analysis were found factors indicative of the effects of neoliberalism both in the material reality of work and in the subjectivity of domestic workers

Implications of research: the research offers new scientific contributions to the theme of domestic work, offering theoretical bases for interventions and public policies that impact this class of workers.

Originality/value: the theme of the research demonstrates high social relevance for a greater political understanding of the socioeconomic scenario around domestic workers and their apprehension for future scientific and public policy works.
RPER Software - A Social Management Tool for Rapid Participatory Emancipatory Research: Planning, Design and Implementation
Authors: Felizardo Luiz Flávio , Wallau Marcelo Osório , Pereira José Roberto 
Published: October 2023

Theoretical framework: This study is grounded in Social Management, a paradigm that focuses on society's deliberative process for public decisions. It also employs the Rapid Participatory and Emancipatory Research (RPER) method, an adaptation of rapid and participatory appraisals, to apply social management in rural contexts.

Research objectives: Identify the requirements, plan, design, assess the complexity, and implement a system to support the RPER application.

Methodology: The waterfall model for software development lifecycle was used to carry out the system's planning. The discipline of Business Process Management (BPM) was necessary for the requirements mapping and the Function Point Analysis (FPA) technique to measure the software complexity from a user perspective.

Results: The RPER application process was fully mapped, and several features that could be implemented for the software were uncovered. These functionalities address practically all the steps involved in the method’s application. In addition, the software measurement was completed, and 542 function points were found. After this, the design for the graphical user interface was then created. Finally, the software was developed using technologies such as Express for building the back-end RESTful API with Node.js, React library to create the front-end’s componentized user interface, TypeScript as the main programming language and PostgreSQL as the relational database.

Originality: It is notable that some software has already been used to try and promote social participation in public matters. However, studies specific to the use of information and communication technology (ICT) to resolve social issues, and, at the same time, dealing specifically with participatory techniques are non-existent. There is an overflow of software tools designed to support quantitative research in the agriculture field, yet there remains a notable deficiency in software tailored to assist qualitative research and practices.

Theoretical and practical contributions: The use of a web system on participatory approaches can bring advantages. In the theoretical side, this research might provide insights into these methods’ evolution. It will also provide a foundational framework for understanding the intersection of ICT and participatory techniques, paving the way for future research in this area. Some other more practical benefits include the wider distribution and dissemination of results, data transparency, the unification or centralization of the research made using the methods, the organization of data, the possibility of automation on report generation, better communication and collaboration between team members, and data safety with periodic backups. Nonetheless, the software could serve as a platform for preparing new researchers with help and tips section for each of the methods’ techniques.
Validity of One-Dimensional Radiative Transfer in Participating Media
Authors: Yuen Walter W. 
Published: October 2023

For radiative transfer through an absorbing, scattering medium with planar geometry, the validity of the one-dimensional assumption is examined. Using the generalized zonal with Monte Carlo method as a solver, exact numerical solutions are generated to identify conditions under which the one-dimensional assumption is valid. Specifically, for the predictions of transmissivity and reflectivity for a collimated or diffuse energy beam through a planar slab, numerical data are presented to show that a medium aspect ratio (ratio of the width to the thickness) of five or more is a necessary but not sufficient condition for the data to agree with the one-dimensional result. The implication of this condition on the utilization of the one-dimensional radiative transfer assumption in some practical engineering problems such as pipe flow and thermal insulation is discussed.
Penerapan Model Problem Based Learning untuk Meningkatkan Hasil Belajar Siswa dalam Pembelajaran IPA Materi Ekologi Di SMP Negeri 5 Ciamis
Authors: Noviana Rina , Llmiyati Nur , Darmiasih Dedeh 
Published: October 2023

Penelitian tindakan kelas dengan menerapan model pembelajaran Problem Based Learning dalam pembelajaran IPA materi Ekologi di kelas VII F bertujuan untuk meningkatkan hasil belajar siswa. Lokasi peneltian dilakukan di SMP Nnegeri 5 Ciamis dengan jumlah subjek penelitian sebanyak 32 siswa. Teknik pengumpulan data dengan menggunakan tes. Tes bertujuan untuk mendapatkan hasil belajar siswa yang dilakukan selama prasikllus, siklus I, II dan III. Berdasarkan Analisis data yang didapatkan pada siklus I Siswa mendapatkan nilai rata-rata 55 %, pada siklus II siswa mendapatkan nilai rata-rata 76 % dan pada siklus ke III siswa mendapatkan nilai rata-rata 94 %. Dengan hasil yang didapatkan tersebut penerapan model pembelajaran Problem Based Laerning efektif dalam meningkatkan hasil belajar siswa. Pelaksanaan pembelajaran dengan menggunakan model pembelajaran problem based learning (PBL) sangat membantu dalam meningkatkan hasil belajar siswa. Dikarenakan siswa akan lebih tertarik untuk belajar dan siswa menjadi lebih aktif dalam proses diskusi, hal ini meningkatkan hasil belajar siswa yang terlihat dari pelasanaan 3 siklus yang dilakukan, disetiap siklusnya mengalami kenaikan, hal ini menunjukan jika model pembelajaran Problem based learning tepat untuk meningkatkan hasil belajar siswa. Kata Kunci: Problem based learning, Hasil belajar, Ilmu Pengetahuan Alam
Peningkatan Hasil Belajar Kognitif Siswa Materi Sistem Ekskresi dengan Metode Praktikum
Authors: Rahayu Surya Fuji , Ulfah Maria , Agustini Ferina , Kusumawati Yustina 
Published: October 2023

Materi sistem ekskresi merupakan materi yang bersifat kontekstual dan abstrak. Praktikum dapat memberikan gambaran yang kongkrit tentang suatu peristiwa dan melalui kegiaan praktikum siswa dapat mengembangkan pemikiran mereka secara kontekstual. Penelitian ini bertujuan untuk mengetahui peningkatan aspek kognitif peserta didik dengan metode praktikum. Metode penelitian yang digunakan yaitu Penelitian Tindakan Kelas (PTK) yaitu penelitian yang berbasis pada permasalahan dari kelas. Subjek penelitian ini adalah siswa kelas VIII-H SMP Negeri 6 Semarang yang berjumlah 31 siswa. Hasil penelitian menunjukan dengan penggunaan metode praktikum dapat meningkatkan kognitif peserta didik pada materi sistem ekskresi hal ini dibuktikan dengan hasil nilai kognitif peserta didik menunjukan adanya peningkatan nilai kognitif pada pembelajaran siklus 1 yaitu 8,64% dan peningkatan nilai pada siklus II dan III sebesar 16,31%.
Pengaruh Pengaplikasian Pupuk Organik Cair Kulit Pisang dan Air Cucian Beras terhadap Pertumbuhan Tanaman Kacang Hijau
Authors: Armanda Dicky , Pakpahan Enni Halimatussa’diyah , Panggabean Alimatusakdia 
Published: October 2023

Pada penelitian ini akan dikaji pertumbuhan tanaman kacang hijau (Vigna radiata L.) dalam pengaruhnya dengan pemberian pupuk cair berbahan dasar kulit pisang dan air cucian beras. Pupuk organik cair (POC) plus air sederhana, pupuk organik cair (POC) dengan diberikan campuran air beras, dan air murni atau biasa adalah tiga bahan yang diuji. Penelitian bertujuan untuk mengetahui efektivitas penggunaan pupuk organik cair kulit pisang kepok terhadap pertumbuhan tanaman kacang hijau. Penelitian ini dilaksanakan di Desa Tumpatan, Kecamatan Beringin, Kabupaten Deli Serdang, Provinsi Sumatera Utara. Selama 2 minggu, mulai dai tanggal 14-26 April 2023. Penelitiann menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 2 kali pengulangan, yaitu P0 = tanpa pupuk dan tanpa disiram apapun(Kontrol), P1 = hanya disiriam menggunakan air biasa tanpa campuran pupuk, P2 = Pupuk organik cair (POC) kulit pisang kepok dengan campuran air biasa, P3 = Pupuk organik cair (POC) kulit pisang kepok dengan menggunakan campuran air beras. Variabel yang diamati adalah tinggi tanaman, dan jumlah dauni. Penelitian didapatkan bahwa perlakuan P0 tanaman hanya memiliki tinggi 8cm dan memiliki daun yang berjumlah 10 lembar daun, P1 tanaman memiliki tinggi 10cm dengan jumlah daun 11 lembar, P2 tanaman memiliki tinggi 12cm dengan daun berjumlah 11 lembar, dan P3 tanaman memiliki tinggi 14cm dengan daun berjumlah 18 lembar daun. Hasil penelitian didapatkan bahwa perlakuan P3 memberikan hasil terbaik pada semua parameter pengamatan Kata Kunci: Kacang hijau, Kulit pisang kepok, Pupuk Organik Cair (POC).
Ruptured proximal pontine artery aneurysm and association with cerebellopontine angle cistern arterial venous malformation fed by the same artery: A surgical challenge
Authors: Gladi Maurizio , Di Rienzo Alessandro , Fasinella Maria Rossella , Aiudi Denis , Balercia Paolo , Dobran Mauro , Iacoangeli Maurizio 
Published: October 2023

Background:
The coexistence of hyper-inflow aneurysms and cerebellopontine angle cistern (CPAc) arterial venous malformations (AVMs) have been rarely reported and most commonly associated with high risk of bleeding.

Case Descriptions:
We present two cases of CPAc AVMs admitted for acute subarachnoid hemorrhage from rupture of a parent right pontine artery aneurysm. Admission history, neurology at presentation, pre/post-operative imaging, approach selection, and results are thoroughly reviewed and presented. The acute origin angle of the vessel from the basilar artery made both malformations unsuitable for endovascular treatment. The surgical strategy was differently tailored in the two patients, respectively, using a Le Fort I/transclival and a Kawase approach. The aneurysm was clipped in the first case, and the AVM was excised in the second one, as required by the anatomical context. Aneurysm exclusion and AVM size reduction were obtained in the first case, while complete AVM removal and later aneurysm disappearance were obtained in the second one. A high-flow cerebrospinal fluid leak in the first case was successfully treated by an endoscopic approach. Both patients experienced a satisfactory neurological outcome in the follow-up.

Conclusion:
Pontine artery aneurysms, especially when associated with CPAc AVMs, represent a surgical challenge, due to their rarity and anatomical peculiarity, which typically requires complex operative approaches. Multimodal preoperative imaging, appropriate timing, and accurate target selection, together with versatile strategies, are the keys to a successful treatment.
Intraventricular endoscopy and intraventricular antibiotics in the treatment of multiloculated hydrocephalus with ventriculitis in a neonate and an infant: Two case reports
Authors: Valdivia Doriam Alejandrino Perera , Vega Luis Roberto Zapata , Pérez Edgar Abraham Herrera 
Published: October 2023

Background:
We present two pediatric cases, a neonate and an infant, who presented with treatment-refractory ventriculitis and multiloculated hydrocephalus treated with simultaneous intraventricular endoscopy and antibiotics. This is the first report of this combined therapy in children.

Case Description:
Using intraventricular endoscopic surgery and antibiotics, hydrocephalus was treated with a minimum number of ventricular shunt systems. In addition, treatment-refractory ventriculitis was treated in both patients using intraventricular antibiotics.

Conclusion:
Endoscopic surgery and intraventricular antibiotic administration are useful strategies for treating multiloculated hydrocephalus and ventriculitis in children.
Isolated cervical Cutibacterium acnes osteomyelitis in a patient with no primary source of infection – A case report and review of the literature
Authors: Omosor Emmanuel , Milosavljevic Elena , Lawson Edward , Lopez-Gonzalez Miguel Angel 
Published: October 2023

Background:
Cervical vertebral osteomyelitis (CVO) is a rare pathology that leads to progressive osseous degradation and eventual loss of bone putting the patient at risk of devastating neurological injury in the event of bony collapse or instability. Cutibacterium acnes formerly called Propionibacterium acnes is rare, but within the last two decades has been an increasingly reported cause of osteomyelitis. The majority of C. acnes vertebral osteomyelitis cases have been reported in patients with a history of prior invasive procedures where direct contamination at the time of procedure was suspected as the underlying etiology.

Case Description:
We report a unique case of an otherwise healthy 39-year-old male with no prior history of invasive procedures who presented with CVO secondary to C. acnes. He underwent surgical debridement and fusion in conjunction with antibiotic treatment. The patient recovered well and a 2-year follow-up with serial imaging showed no evidence of disease recurrence.

Conclusion:
C. acnes is an under-recognized and under-reported etiology of spine infections. Clinicians should be aware of the pathological potential and atypical presentation of C. acnes vertebral osteomyelitis.