bluuebunny/crossref_metadata_2025 huggingface dataset:
Subjetividad política y expresión pública digital entre actores de la sociedad civil en Guanajuato
Authors: Flores Márquez Dorismilda , Hernández Pérez Christian Saúl , Morales Carbajal José Antonio
Published: March 2024

In this article we approach the link between political subjectivity and digital public expression among civil society actors in Guanajuato, Mexico. We understand political subjectivity as the ways of assuming oneself as a political subject. We consider three dimensions: action, relationship with others and communication. The discussion on digital public expression is framed there. Methodologically, we worked on a qualitative study, with a biographical-narrative orientation, through 12 semi-structured interviews with civil society actors. We identified key elements of their trajectories, allowing us to observe the ways in which they have been constructed themselves as political subjects, based on some event that motivated them to seek social change and that articulates the individual with the collective, as well as the ways in which this translates into actions, relationships, and practices of public expression. Finally, we identified a disenchantment with the phenomena of disinformation and polarization that have impoverished public debate. The study contributes to the analysis of the relationship between the individual and the collective, and details the tension between these two dimensions and its implications in the public space.
İklim Değişikliğiyle Mücadeleye Etki Eden Psikolojik Engellerin İncelenmesi
Authors: Kaşdarma Ezgi
Published: March 2024

İklim değişikliği çağımızın önemli sorunlarından birisi olmakla birlikte, psikoloji disiplininde iklim değişikliğinin incelenmesi yakın bir geçmişe sahiptir. İklim yanlısı davranışların gerçekleştirilmesini engelleyen psikolojik unsurların anlaşılması, iklim değişikliğine yönelik görgül çalışmaların ve psikolojik müdahalelerin gerçekleştirilmesini mümkün kılacaktır. Bu çalışmada öncelikle, çevreci davranışların gerçekleştirilmesini açıklayan temel kuramsal modeller tanıtılmıştır. Bu kuramsal modellerden ilki Değer-Eylem Boşluğu Modeli iken, diğeri Kapsamlı Eylem Belirleme Modelidir. Ardından, sistematik bir literatür taraması gerçekleştirilerek iklim yanlısı davranışlarla ilişkili psikolojik engeller incelenmiştir. Mevcut çalışmada, Gifford (2011) tarafından kapsamlı biçimde sunulan psikolojik engellerin tanımı yapılarak her bir engele ilişkin kanıt sunan çalışmalar gözden geçirilmiştir. Daha sonrasında Gifford’un tanımladığı psikolojik engellerin sınandığı görgül çalışmaların bulguları aktarılmıştır. Bu çalışmaların birisinde söz konusu engellerin yapı geçerliği incelenerek psikolojik engellere ilişkin bir ölçüm aracı literatüre kazandırılmıştır. Elde edilen beş adet psikolojik engel boyutu şunlardır; değişimin gereksiz görülmesi, çatışan amaçlar ve arzular, kişiler arası ilişkiler, bilgi eksikliği ve tokenizm. Yapı geçerliği sağlanan bu engellerin incelendiği çalışmalar sayıca azdır. İki çalışmanın bulgularına göre psikolojik engellerin her birisinin iklim yanlısı davranışlar üzerindeki yordayıcı etkisi ve iklim yanlısı tutum ile davranışlar arasındaki aracı etkisi, incelenen davranışın türüne bağlı olarak değişmektedir. Psikolojik engellerin tek boyut altında incelendiği bir çalışmada bazı kişisel değişkenler ile iklim yanlısı davranış arasındaki ilişkide psikolojik engellerin aracı etkisi saptanmıştır. Psikolojik engellerin tek boyutta analiz edildiği bir diğer çalışmada iklim yanlısı tutum ile davranışlar arasındaki ilişkide psikolojik engellerin düzenleyici etkisi saptanmıştır. Sonuçta, psikolojik engellerin iklim yanlısı davranışlar üzerindeki aracı ve düzenleyici etkilerinin gelecekteki çalışmalarda detaylı olarak incelenmesi gerekmektedir. Ayrıca, farklı ülkelerdeki bazı çalışmaların bulguları psikolojik engellerin beş faktörlü yapısının değişkenliğini ortaya koymuştur. Bu nedenle psikolojik engellerin kültürel farklılıklara duyarlı olabileceği tartışılmıştır.
Ahlak Yasasından Ebedi Barış İdealine Kant’ı Yeniden Okumak
Authors: Düzgün Oğuz
Published: March 2024

Siyaset faaliyeti, insanların gerçekleştirdiği bir faaliyet olması açısından insanın eylemleri kadar düşünme etkinliğiyle de doğrudan ilişkili durumdadır. Bu noktada, siyaset felsefesinin insanî bir değerler alanına dâhil olan ahlâkla ilgisiz olması da imkânsız görünmektedir. Ahlaki temelli siyaset felsefesi teorilerini etkileyen önemli isimlerden birisi de elbette Kant'tır. Kant'ın siyaset anlayışı onun adalete dair arayışından ve ahlak alanındaki akıl yürütmesinden bağımsız değildir. Kant'a göre ahlaki eylem yalnız ve yalnız özgür iradeyle yapılması gereken bir tercih meselesi olmalıdır. Kant'ın siyaset anlayışının, özgürlük ve özerkliğe dayalı deontolojik ahlak/ ödev ahlakı anlayışının bir uzantısı olduğunu da belirtmek gerekir. Kant’a göre, aklın a priori bir yasası olan ahlâk yasasına uymak ahlâklı olmak isteyen herkes için zorunlu bir ödev olmak durumundadır. Bu zorunluluk hukuk yasaları gibi dışsal bir zorlamadan değil kişinin bir özgürlük yasası olarak ahlâk yasasını kendisine zorunlu bir ödev olarak belirlemesinden kaynaklanır. Kant’a göre insan ancak pratik aklın yasası olan ahlâk yasasına, kendi özgür iradesini kullanmak yoluyla uyarak doğa nedenselliğinin dışına çıkabilecektir. İnsanın özerkliğe sahip olduğu fikrine dayanan böyle bir ödev bilinci insanın gerçek özgürlüğünün teminatı olmak durumundadır. Kant daha sonra hukuk ve siyaset felsefelerini de ahlâk yasasını merkeze almak suretiyle geliştirecektir. Ahlâk yasasıyla başlayan bu yolculuğun duraklarından birisi de cumhuriyetçi bir adalet devleti kurma düşüncesi olacaktır. Zaten Kant’ın ahlâk anlayışından doğan ebedi barış düşüncesi de böyle bir adalet arayışının sonucunda ortaya çıkmıştır. Kant’a göre dünya ancak ebedi barış ideası yoluyla barış ve adalet dünyasına dönüşme imkânına kavuşabilecektir. Ayrıca makalede, BM gibi barışı temsil eden uluslararası kurumların pratikte Kant’ın görüşleriyle uyumlu olup olmadıkları sorusuna da cevap aranacaktır.
Toplumsal Değişim Sürecinde Çocuk Suçluluğu: Eğilimler ve Etkiler
Authors: Özalp Ahmet
Published: March 2024

Suç yalnızca bireysel bir eylem olmaktan ziyade aynı zamanda toplum yaşamını derinden etkileyen bir sosyal olgudur. Çocuk suçluluğu da bu nedenle toplumsal sorunun önemli bir parçasını oluşturmaktadır. Bu açıdan hukuk kurallarını çiğneyen bireylere meşru cezaların uygulanmasını gerektiren bir eylem olarak suç politika yapıcılar ve yasa koyucuların çözmesi gereken sorunların başında gelmektedir. Toplumsal faktörler, ekonomik durum, eğitim seviyesi, kültürel normlar ve sosyal adalet gibi unsurlar çocuğun suça itilmesini üzerinde etkilidir. Bu araştırmada toplumsal değişim sürecinde çocuk tanımında, çocukların itildikleri suç türlerinde, hukuki yaklaşımlarda ve suçla başa çıkma politikalarındaki değişimler incelenmiştir. Bu arka plana destek olarak kitle iletişim araçlarının yaygınlaşmasının suç davranışı üzerindeki etkileri değerlendirilerek çocuk üzerindeki etkileri de analiz edilmiştir. Modernleşmenin etkilerine paralel olarak değişen hukuki bakış sayesinde çocuğun bir yetişkin gibi yargılanma biçimi de değişmiştir. Dünyada ve ülkemizdeki 19. yüzyıldan günümüze kadar olan süreçte gerçekleşen toplumsal değişimlerin etkisiyle çocuk ve suç arasındaki ilişkinin hangi yönlerde farklılaştığı bu çalışmanın ana sorusunu oluşturmaktadır. Makalenin araştırma yöntemi olarak literatür tarama tekniği seçilmiştir. Ek olarak bu çalışmada tarihi ve kültürel karşılaştırmalar yapılırken ülkelerin resmi istatistiki verilerinden de yararlanılmıştır. Bu çalışma sonucunda, yıllık istatistiklerden yola çıkılarak suça itilmiş çocuk sayısının artmasına paralel olarak suç teorilerinin biyolojik ve psikolojik bakış açılarından uzaklaşıp sosyo-kültürel yaklaşımlara evirildiği sonucuna ulaşılmıştır. Ek olarak, suçla başa çıkma politikalarının çocuklara yönelik danışmanlık, aile denetimi, sosyalleşme alana kaydığı anlaşılmış ve TV programlarının çocukların yaşam dünyasında tahribata neden olduğu da bulunmuştur.
Relationships between yellow and purple passion fruit variables
Authors: Lopes Beatriz G. , Rodrigues Gabriela M. , Vieira Afrânio M. C. , Savian Taciana V. , Faria Glaucia A.
Published: March 2024

ABSTRACT Brazil is the world’s largest producer of passion fruit, with the species Passiflora edulis Sims (yellow and purple passion fruit) being the most popular commercially. Due to the great economic importance of this culture, seeking high productivity, phytotechnical quality, and maintenance of existing germplasms, among others, it is necessary to carry out studies of the most diverse types of this culture. In this crop, the use of multivariate techniques has increasingly driven studies on genetic differences between passion fruit species. Therefore, this research aimed to identify the variables that deserve greater emphasis in experiments with two commercial species of Passiflora: Passiflora edulis Sims f. edulis (purple passion fruit) and Passiflora edulis Sims (yellow passion fruit), verifying if the species differ from each other. For this purpose, principal component analysis, multivariate analysis of variance (MANOVA), and Hotelling’s T2 test were performed. The principal component analysis proved to be effective, allowing the removal of five variables for yellow passion fruit and six variables for purple passion fruit and yellow passion fruit present contrasting differences between them, being the explanatory variables for the purple passion fruit the external and internal color and for the yellow passion fruit length, diameter, and citric acid.
Characterization of teaching-learning tutors in public health services and topics of interest for their work
Authors: Souza Isadora Siqueira de , Paiva Neto Francisco Timbó de , Pereira Rebecca Cabral de Figueirêdo Gomes , Shimocomaqui Guilherme Barbosa , Paz Ana Cláudia Pereira da , Paresque Marcio Anderson Cardozo , Eshriqui Ilana
Published: March 2024

ABSTRACT Objective: To describe the profile of teaching-learning tutors in public health services and investigate which topics are of greatest interest in development spaces for these actors. Method: Cross-sectional study. Eligible tutors of Health Care Planning. Data collection using an electronic questionnaire composed of closed questions on sociodemographic characteristics, training and performance. Chi-square test used to compare proportions according to tutor typologies. Results: A total of 614 tutors worked in Brazil’s five geographic regions, the majority in primary care (82%), followed by state/regional work (13%) and specialized outpatient care (5%). The majority reported being female, of brown skin color, from the nursing field, having worked as a tutor for less than a year, and with no previous experience in preceptorship or similar. The most important topics were Health Care Networks, risk stratification for chronic conditions and the functions of specialized outpatient care. Conclusion: The predominance of certain characteristics among tutors was identified, with differences between the types of work. The findings can support managers in the process of selecting and developing tutors in Health Care Planning.
CONSERVAÇÃO DOS OCEANOS E MUSEUS DE CIÊNCIA: UM ESTUDO DE CASO SOBRE AS EXPERIÊNCIAS FAMILIARES DURANTE VISITA AO MUSEU DA VIDA
Authors: Massarani Luisa , Aguiar Bruna Ibañes , Scalfi Graziele , Reznik Gabriela , Luz Rafael Velloso
Published: March 2024

RESUMO: Neste estudo, utilizamos registros audiovisuais para analisar as conversas de 10 grupos familiares durante visita à exposição temporária “Oceanos” (Museu da Vida, Rio de Janeiro, Brasil) para compreender como os visitantes se engajaram com temas da conservação da biodiversidade marinha. Os resultados trazem evidências de que a exposição despertou o interesse das famílias ao utilizar objetos de natureza diversa para retratar temas de interesse vinculados ao contexto familiar. As famílias conversaram entre si e interagiram com a exposição compartilhando informações sobre os oceanos e a biodiversidade marinha. Os adultos adotaram comportamentos facilitadores: fazer perguntas, ler painéis e fazer associações com experiências anteriores que engajaram as crianças. As crianças participaram ativamente compartilhando seu conhecimento e suas opiniões sobre os animais. A exposição sensibilizou os visitantes para a poluição dos ecossistemas marinhos oferecendo oportunidades para as conversas e reflexões sobre os comportamentos que impactam a biodiversidade marinha e os meios de protegê-la.
Evaluation of facial pleasantness in patients with complete and unilateral cleft lip and palate rehabilitated and submitted to orofacial harmonization
Authors: FANGUEIRO Daniel Giaretta , GARIB Daniela Gamba , CONTI Ana Cláudia de Castro Ferreira , LARGURA Lucila
Published: March 2024

ABSTRACT Objective: The objective of the present prospective case control study was to evaluate the facial pleasantness of patients with complete and unilateral cleft lip and palate at the end of interdisciplinary rehabilitation, submitted to facial fillers based on hyaluronic acid. Methods: The study group consisted of 18 individuals with complete unilateral cleft lip and palate, aged between 18 and 40 years (mean age 29 years) of both sexes. The patients presented a concave profile with mild to moderate maxillary deficiency, with completed orthodontic treatment and conducted by means of dentoalveolar compensations without orthognathic surgery. Participants underwent facial filling procedures with hyaluronic acid (HA) in the midface, inserted by a single operator. Standard photographs in frontal norm at rest, right profile at rest, and left profile at rest were obtained from each patient at the following operative times: (T1) pre-filler and (T2) and one-month post-filler. The photographs in T1 and T2 were randomly placed on a page of a virtual album. A 5-point Likert scale was used to assess facial pleasantness. The photographs were evaluated by two groups of evaluators consisting of 18 individuals with cleft lip and palate (CLPG=18) and 18 orthodontists with experience in the treatment of clefts (OG=18). For comparison between phases T1 and T2, and between evaluators with orofacial clefts and orthodontists, the Wilcoxon test was used (p<0,05). Results: People with cleft lip and palate rated their face as more pleasant after the midface filling procedure. In the perception of the orthodontists, on the other hand, the facial pleasantness remained similar after the facial filling procedure. Conclusions: The filling of the middle third of the face in patients with cleft lip and palate treated without orthognathic surgery increased the pleasantness of the face in the opinion of laypeople with cleft lip and palate.
Mudança e (re)organização social no artesanato tradicional de trançados do rio Arapiuns, Santarém, Pará
Authors: Arantes Ana Carolina Vitorio , Carvalho Luciana Gonçalves de , Nascimento Veridiana Barreto do
Published: March 2024

Resumo A produção de objetos em palha de tucumã é histórica em comunidades às margens do rio Arapiuns, município de Santarém, Pará, e, em 2022, esse saber-fazer foi declarado patrimônio histórico, cultural e imaterial do município. Este artigo aborda mudanças na organização social e na produção artesanal dos trançados do Arapiuns, a partir da experiência da Associação de Artesãos e Artesãs das Comunidades de Nova Pedreira, Vista Alegre e Coroca (AARTA). Entrevistas semiestruturadas, conversas informais e análise de documentos indicaram que, a partir dos anos 2000, diversas instituições passaram a atuar na região, visando à geração de renda e à preservação cultural e ambiental. Essas instituições, juntamente com artesãs, possibilitaram o intercâmbio de saberes-fazeres, as variações na tipologia e no tingimento de peças, a organização formalizada das artesãs, além de mudanças nas formas de produção e comercialização do artesanato. A organização formal do grupo, a atuação da associação e o papel desempenhado por uma artesã específica consolidaram tais mudanças. Nesse processo, a AARTA materializou a valorização do artesanato pelas próprias artesãs e tem impulsionado a colocação dessa atividade em espaços que estimam os atributos de um artesanato tradicional, com melhores preços de venda, além de divulgar e permitir seu reconhecimento enquanto patrimônio municipal.
Enfrentamento da subnotificação da perda auditiva induzida por ruído relacionada ao trabalho: a experiência de uma oficina educativa em planejamento e programação local em saúde do trabalhador
Authors: Santana Flávia Verena Nascimento , Arce Vladimir Andrei Rodrigues
Published: March 2024

Resumo Introdução: a subnotificação da Perda Auditiva Induzida por Ruído (Pair) relacionada ao trabalho é um problema que contribui para a invisibilidade e falta de prioridade deste agravo nos programas de Saúde do Trabalhador (ST). Logo, ações de educação permanente voltadas ao planejamento estratégico-situacional podem contribuir para o enfrentamento desta realidade. Objetivo: apresentar e discutir a experiência de uma intervenção educativa com técnicos da ST de uma macrorregião de saúde do estado da Bahia, Brasil, sobre o uso do Planejamento e Programação Local em Saúde (PPLS) como ferramenta para ampliação da notificação da Pair relacionada ao trabalho Métodos: a intervenção consistiu em uma oficina estruturada em cinco etapas, as quais proporcionaram discussão sobre a Pair, conhecimento do PPLS, prática do PPLS, socialização dos resultados e avaliação do evento. Resultados: a prática do PPLS, a partir de um problema real, viabilizou o delineamento de ações concretas de enfrentamento da subnotificação da Pair a serem implementadas nos Centros de Referência em Saúde do Trabalhador (Cerest) e no estado como um todo. Conclusão: a experiência mostrou-se bem-sucedida ao fomentar a tomada de consciência e mobilização dos técnicos para enfrentamento da subnotificação da Pair, ao tempo que propiciou qualificação em PPLS dos participantes.
Nexo causal entre trabalho e saúde/doença e o problema das perícias
Authors: Ribeiro Bruno Chapadeiro
Published: March 2024

Resumo A esfera das perícias comumente reduz a questão do estabelecimento do nexo de causalidade entre trabalho e saúde/doença apenas ao binômio trabalho/vida pessoal. Partindo dos pressupostos dos campos Saúde do Trabalhador (ST) e Saúde Mental Relacionada ao Trabalho (SMRT), este ensaio visa problematizar o resultado da questão, que reside na existência de dificuldades enfrentadas por trabalhadores na obtenção do nexo causal entre seus agravos/adoecimentos, cuja causalidade mais complexa se explica a partir de várias mediações pouco consideradas nos atos periciais circunscritos apenas às anamneses clínicas de cunho biomédicas pautadas nos pressupostos da Medicina do Trabalho, Higiene e Saúde Ocupacional. As formas de superação à ideia de causa-efeito passam pelo entendimento de que o processo de adoecimento é social e histórico e de que é preciso buscar mediações entre trabalho e adoecimento para elucidar sintomatologias singulares a partir da experiência do desgaste coletivo. Tal averiguação deve, ao mesmo tempo, problematizar os próprios processos de trabalho dos atores sociais envolvidos nas investigações periciais e partir das prioridades definidas pelos próprios trabalhadores que atuam como sujeitos da análise da nocividade do trabalho para a saúde.
A saúde na região do Médio Solimões no estado do Amazonas: a centralidade de Tefé
Authors: Kadri Michele Rocha El , Ferreira Claudio Pontes , Freitas Carlos Machado de
Published: March 2024

RESUMO Em um cenário de várzea amazônica com fluxos fluviais, o estudo analisa a articulação da Atenção Básica com a Atenção Especializada, buscando discutir as condições políticas e geográficas que impactam na conformação da rede assistencial em uma região de saúde na Amazônia Ocidental. Adotouse uma combinação de estratégias metodológicas: levantamento de indicadores de morbidade e da rede de saúde, mapeamento dos trajetos intermunicipais, levantamento de despesas em Ações e Serviços Públicos de Saúde e entrevistas com gestores. O município de Tefé concentra serviços bancários, poder judiciário, educacional, órgãos de controle e segurança que lhe conferem uma centralidade de funções. Contudo, a saúde não considera os fluxos existentes no território para definição de quais municípios têm Tefé como referência. A defasagem dos dados nos sistemas de informação em saúde, aliada a ausência do ente estadual no planejamento regional de saúde, apoio para provimento de profissionais especializados, pagamento de insumos e organização do fluxo de referência-contrarreferência na rede têm sido desafios para planejar integralidade da atenção na região, sobrecarregando o município-polo. Apesar do aumento progressivo de despesas em saúde nos municípios analisados, a oferta de serviço para além da Atenção Básica permanece sendo um desafio para o Sistema Único de Saúde (SUS) na Amazônia.
Cultural Bias in Explainable AI Research: A Systematic Analysis
Authors: Peters Uwe , Carman Mary
Published: March 2024

For synergistic interactions between humans and artificial intelligence (AI) systems, AI outputs often need to be explainable to people. Explainable AI (XAI) systems are commonly tested in human user studies. However, whether XAI researchers consider potential cultural differences in human explanatory needs remains unexplored. We highlight psychological research that found significant differences in human explanations between many people from Western, commonly individualist countries and people from non-Western, often collectivist countries. We argue that XAI research currently overlooks these variations and that many popular XAI designs implicitly and problematically assume that Western explanatory needs are shared cross-culturally. Additionally, we systematically reviewed over 200 XAI user studies and found that most studies did not consider relevant cultural variations, sampled only Western populations, but drew conclusions about human-XAI interactions more generally. We also analyzed over 30 literature reviews of XAI studies. Most reviews did not mention cultural differences in explanatory needs or flag overly broad cross-cultural extrapolations of XAI user study results. Combined, our analyses provide evidence of a cultural bias toward Western populations in XAI research, highlighting an important knowledge gap regarding how culturally diverse users may respond to widely used XAI systems that future work can and should address.
MEASURING INPUTS-OUTPUTS ASSOCIATION FOR TIME-DEPENDENT HAZARD MODELS UNDER SAFETY OBJECTIVES USING KERNELS
Authors: Lamboni Matieyendou
Published: March 2024

A methodology for assessing the inputs-outputs association for time-dependent predictive models subjected to safety
objectives is investigated. Firstly, new dependency models for sampling random values of uncertain inputs that comply
with the safety objectives are provided by making use of the desirability measures. Secondly, combining predictive risk
models with such dependency models leads to the development of new kernel-based statistical tests of independence
between the (safe) dynamic outputs and inputs. The associated test statistics are then normalized so as to introduce the first-order and total sensitivity indices that account for the desirability measures. Such indices rely on time-dependent sensitivity functionals (SFs) and kernel methods, which allow for treating nonstationary SFs as well as SFs having skewed or heavy-tailed distributions. Our approach is also well-suited for dynamic hazard models with prescribed copulas of inputs.
EVALUATION OF WASTE HEAT RECOVERY SYSTEMS FOR INDUSTRIAL DECARBONIZATION
Authors: Vesely Ladislav , Rapp Logan , Kapat Jayanta
Published: March 2024

To maintain or reduce CO2 emissions with the continually growing world population and related increasing requirements for energy and transportation, decarbonization is a key factor for current and future power systems. One of the sectors where decarbonization is necessary is energy-intensive industries (i.e., steel and iron, cement, aluminum, glass, food and beverage, paper). The industrial sector contributes approximately 28% of global CO2 emissions. CO2 emissions from energy-intensive industries can be reduced through several different approaches (i.e., direct: alternative fuel or energy source and Carbon capture systems; indirect: utilization of waste heat). This work focuses on the evaluation of waste heat recovery systems for the steelmaking process. The steelmaking process has three sources of waste heat in three different process steps. The waste heat can be utilized by all potential power generation cycles such as the Organic Rankine cycle (ORC), Steam Rankine cycle (SRC), and supercritical CO2 (sCO2 ) cycle as a bottoming cycle. However, due to the large temperature range, potential retrofitting, and limited footprint, a sCO2 waste heat recovery system could be an ideal candidate for utilizing waste heat streams. This article is focused on the optimization of the potential sCO2 cycle layouts for a steel plant with several electric arc furnaces (EAF) and with waste heat temperature between 200° to 1300°C. The results show that sCO2 power cycles can reach cycle efficiencies above 35% with higher net power and primary heat exchanger effectiveness compared to ORC and SRC.
Study of a mechano-electrochemical model: a numerical and experimental approach
Authors: Lv Shengli , Miao Yuanyang , Zhang Wei , Srivatsan Tirumalai S , Gao Xiaosheng
Published: March 2024

The mechanochemical effects of elasticity and plasticity are introduced into a peridynamic (PD) corrosion model. A PD equation that couples the mechanics and kinetics of electrochemistry is proposed for the first time. This clarifies the influence of the mechanical load in governing the occurrence of diffusion during corrosion. The phase changes experienced by a material are used to characterize the movement of the corrosion boundary, and the concentration of material points is used to characterize the degree and extent of damage caused to the chosen metal. Immersion tests and in situ electrochemical tests are carried out, and the results are used to explore the effects of stress and/or load on the kinetics of environment-induced damage to an aluminum alloy. The model predictions are in good agreement with the experimental observations. The results of this study demonstrate that a coupled mechano-electrochemical PD corrosion model can capture corrosion-induced damage and can be used to study damage propagation upon exposure to an aggressive environment.
Long-term performance of HDPE extrusion welds aged at 85°C in synthetic leachate
Authors: Ali M. , Rowe R. K.
Published: March 2024

The effect of ageing at 85°C of extrusion welds of 1.5 mm-thick high-density polyethylene (HDPE) geomembrane, immersed in synthetic municipal solid waste leachate, is investigated with respect to its standard oxidative induction time (Std-OIT) and stress crack resistance (SCR). Results show that the heat-affected zones (HAZ) adjacent to the squeeze-out bead (flashing) may exhibit faster STD-OIT depletion than the sheet. Generally, individual weld SCR failure times were observed to be between that of the notched and unnotched sheet. Welds with high welding-induced geometric irregularities (WIGI), and overheated fusion and extrusion welds are shown to result in SCR failure times close to that of a notched sheet. The average time to nominal failure (taken to be when tNF = 250 h) of Cool and Good welding parameter combinations ranges between 3% and 15% shorter than the unnotched sheet. Differences in tNF were attributed to accelerated craze formation in welds with high WIGI from stress concentration. No significant difference was observed between the SCR values of fusion and extrusion welds during 40 months of immersion in MSW-L3. This paper shows that overgrind negatively impacts the SCR of welds and accelerates the degradation of SCR.
Copy Number Alterations Associated with Schinzel-Giedion Syndrome: Case Report
Authors: Ozcan Elif Sena , Hekimoğlu Gulam , Yener Sevim , Yücel Nurullah
Published: March 2024

Schinzel-Giedion syndrome (SGS) is a highly recognizable syndrome characterized by severe mental retardation, distinctive facial features, multiple congenital malformations, and higher-level neurological deficits. Comprehending SGS is essential for customized medical treatment, genetic counseling, and furthering developmental problem research. Enhanced understanding leads to better assistance for impacted people and their families, which improves results overall. In this study, we present a case of SGS associated with 2q35-q37 duplication, 4q34.1 duplication, and 9p24.3-24.1 deletion.
Smoking and Real Life Results of Children and Adolescents
Authors: Ertuğrul Ayşegül , Sarı Eyüp , Bostancı İlknur
Published: March 2024

Aim: Smoking is a chronic disease and children are the most affected group. In this study, we aimed to question the smoking habits of children and their parents and examine the level of exhaled carbon monoxide (eCO) to evaluate the usefulness of the method in an outpatient allergy clinic.
Methods: A questionnare was applied to 29 children who were smoker or exposed to second-hand smoke (SHS) and their parents separately. eCO levels of the participants were measured with CO Smokerlyzer.
Results: The median eCO level of children who smoked was 10 (7-14) ppm and was significantly higher than children exposed to SHS (P <0.001). The children who smoked were significantly older, the more they had friends who smoked. Children who were not exposed to tobacco products had lower rates of hospitalization due to recurrent lower respiratory tract infections, and family history of asthma was lower than children exposed to SHS (p <0.05). All the children were aware of the harmful effects of smoking. 34.5% of the parents were never questioned by their physicians about tobacco and its products and were not informed about smoking.
Conclusions: Using eCO in the clinic is a useful method to predict smoking status in daily practice. Children's attitudes towards smoking and peer relationships and parents' ignorance of smoking and SHS are still an unresolved issue.
Characterization of volcanic deposits and geoarchaeological studies from the 1815 eruption of Tambora volcano
Authors: Sutawidjaja Igan Supriatman , Sigurdsson Haraldur , Abrams Lewis
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol1no1.20066aThe eruption of Tambora volcano on the island of Sumbawa in 1815 is generally considered as the largest and the most violent volcanic event in recorded history. The cataclysmic eruption occurred on 11 April 1815 was initiated by Plinian eruption type on 5 April and killed more than 90,000 people on Sumbawa and nearby Lombok. The type plinian eruptions occurred twice and ejected gray pumice and ash, to form stratified deposits as thick as 40-150 cm on the slopes and mostly distributed over the district west of the volcano. Following this, at about 7 pm, on 11 April the first pyroclastic surge was generated and progressively became greater extending to almost whole direction, mainly to the north, west, and south districts from the eruption center. The deadliest volcanic eruption buried ancient villages by pyroclastic surge and flow deposits in almost intact state, thus preserving important archaeological evidence for the period. High preservation in relatively stable conditions and known date of the eruptions provide approximate dating for the archaeological remains. Archaeological excavations on the site uncovered a variety of remains were relieved by ground penetrating radar (GPR) to map structural remains of the ancient villages under the pyroclastic surge and flow deposits. These traverses showed that GPR could define structures as deep as 10 m (velocity 0.090 m/ns) and could accurately map the thickness of the stratified volcanic deposits in the Tambora village area.
Perkembangan Geologi pada Kuarter Awal sampai Masa Sejarah di Dataran Yogyakarta
Authors: Mulyaningsih Sri , Sampurno Sampurno , Zaim Yahdi , Puradimaja Deny Juanda , Bronto Sutikno , Siregar Darwin Alijasa
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol1no2.20065The uplift of Southern Mountains in Early Pleistocene has formed the Yogyakarta Basin. In this basin, the Merapi volcanic activity has been developing. Based on 14C dating in cinder deposits exposed at Cepogo, the volcanic activity took place since ±42 ka. While on the basis of K/Ar dating in andesitic lava at Bibi Volcano, the activity took place since 0.67 ma. The high in the south and the appearance of Merapi volcanic dome in the north had caused a fl at valley. The southern part of the valley is bounded by the Southern Mountains and the western part is bounded by the West Progo Mountains. In the present time, the lithology of the areas which are interpreted as a palaeo-valley is composed of black clay deposits. This black clay is a contact between the basement rocks and Merapi volcanic deposits. The black clay deposits exposed in the Progo River (Kasihan) has been developed since ±16.59 to 0.47 ka, while in the Opak River (Watuadeg) 6210 y BP. Younger black clay deposits intersecting with lahars are also exposed at the Winongo River and have an age of 310 y BP. The age data of volcanic stratigraphy shows that Merapi activities had taken place since ±6210 up to ±310 years ago.
Carbonate Facies and Sedimentation of the Klapanunggal Formation in Cibinong, West Java
Authors: Praptisih Praptisih , Kamtono Kamtono
Published: March 2024

DOI:10.17014/ijog.v1i3.196The limestone of Klapanunggal Formation is well exposed in the area of Cibinong and its surrounding,West Java. Detailed Observation of carbonate rock has been conducted in this area and aims to studythe carbonate facies and its growth environment. The method used in the field is the detailedinvestigation, while mikropaleontology and petrogaphic analysis conducted in the laboratory. Theresult of this study indicate that the carbonate rocks in the study area consists of four facies. namely:(1) boundstone facies, (2) packstone facies, (3) rudstone facies, and (4) limestone breccia facies. Basedon these data be interpreted that the boundstone facies was deposited in the reef front to reef crestenvironment, packstone facies developed on the lower slope, upper slope, and back-reef lagoonenvironment. Rudstone facies formed on the reef front, and breccia limestone facies were formed inthe lower slope. Geographically, the position of the carbonate body environment that is at the reeffront, upper slope and lower slope is expected to be in the North – North East while the reef crest andback reef lagoon is on the South – Southwest.
Perbandingan karakteristik lingkungan pengendapan, batuan sumber, dan diagenesis Formasi Lakat di lereng timur laut dengan Formasi Talangakar di tenggara Pegunungan Tigapuluh, Jambi
Authors: Heryanto Rachmat
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol1no4.20061The Central Sumatera Basin and the Jambi Subbasin is separated by the Tigapuluh High. During Late Oligocene – Middle Miocene, the Lakat Formation was deposited in fl uvial, fl ood plain associated with swamp, and tidal environments, whereas the Jambi Subbasin was occupied by the deposition of the Talangakar Formation in fl uvial and deltaic environments. The provenance of both formations was derived from the Tigapuluh and Barisan Mountain Highs. Diagenesis stage of the Talangakar Formation is higher (Mesogenetic mature B) than that of the Lakat Formation (Mesogenetic immature). This is because the Talangakar Formation was deposited within an unstable basin formed by horst, and graben structures which were still active during the deposition of the formation. On the other hand, the Lakat Formation was deposited in a more stable basin.
Hubungan antara diagenesis, reflektan vitrinit, dan kematangan batuan pembawa hidrokarbon batuan sedimen Miosen di Cekungan Bengkulu
Authors: Heryanto Rachmat
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol2no2.20074The Early-Middle Miocene Seblat and Middle-Late Miocene Lemau Formations are two of sedimentary rock lithstratigrphic unit that occur in the Bengkulu Basin. Lithologically, the Seblat Formation consists of mudstone with some interbedded sandstones and conglomerate in the lower part and tuffaceous mudstone with some limestone lenses in the upper part. The Lemau Formation, however, comprises dominant sandstones with interbedded shales and sub-ordinate conglomerates and mudstone beds in the lower part, and mudstone with sandstone intercalations and coal seams in the upper part.Hydrogen Index (HI) versus Temperature Maximum (T) diagram shows that the source rock maturation at most of the samples is late immature to early mature. The vitrinite reflectance the dispersed organic matter (DOM) ranges from 0.37 to 0.55%; whereas of the coal seam ranges from 0.76 up to 0.94%. This indicates that the source rock maturation is defined to be late immature to early mature. The data indicate a burial history for about 2,500 m in depth, where the paleotemperature reached 80o C.Diagenetic processes observed from the Seblat and Lemau Sandstones are compaction, the forming of authigenic minerals and secondary porosities. The diagenetic stage includes the mesogenetic mature A, which equivalent to mudrock stage II, with the paleotemperature of 80o to 95o C, and the burial thickness of 2 to 3 km.There is a relationship between diagenetic stage, vitrinite reflectance, and maturation of organic matter of hydrocarbon source rock, caused by the burial depth.
Kemungkinan keterdapatan hidrokarbon di Cekungan Bengkulu
Authors: Heryanto Rachmat
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol2no3.20071The Bengkulu Basin is known as a typical fore-arc basin, situated in the southwest of Sumatera Island. The basin was occupied by the Eo-Oligocene equivalent Lahat Formation that is unconformably overlain by the Oligocene-Miocene volcanic rock of Hulusimpang Formation. It is then succeeded by siliciclastics and few carbonates of Early-Middle Miocene Seblat Formation. Unconformably overlies the Seblat Formation is siliciclastics of the Middle-Late Miocene Lemau Formation, followed by the Late Miocene-Pliocene Simpangaur Formation. The deposition was ended by a typical volcanic rock of the Bintunan/Ranau Formation. The results of sedimentary rock and organic petrographic, scanning electron microscopic and geochemistry (TOC & rock-eval and gas chromatography) analyses conducted on several selected surface outcrop samples and some oil seepage samples collected during the field work, indicate that hydrocarbon is possibly present in the Bengkulu Basin. A source rock possibly occurs in fine-grained carbonaceous sediments of the Seblat and Lemau Formations. The reservoir rock is possibly the sandstone bed of the Lemau Formation and the sandstone and limestone beds of the Seblat Formation. The caprock is a claystone bed present within the Seblat Formation as well as in the Lemau Formation. The hydrocarbon trap probably occurs as stratigraphic and structural types.
Amblesan di daerah Porong, Kabupaten Sidoarjo, Jawa Timur
Authors: Sudarsono Untung , Sudjarwo Indra Budi
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol3no1.20081On 29th May 2006, there was a huge mud outpouring in the Porong Subregency, Regency of Sidoarjo, East Jawa and for one year, it had flooded the area of more than 5 km2 including Porong, Tanggulangin and Jabon Sub-regencies. The mud known as Lumpur Sidoarjo. The impact of the mud outpouring was the presence of a subsidence around the main outpouring for the width of 6.3 km2 in ellipse stretching to the north. The subsidence area covered Tanggulangin Sub-regency: Kedungbendo Village, Porong Sub-regency: Siring, Jatirejo, Mindi, and Renokenongo Villages, and Jabon Sub-regency: Pejarakan and Besuki Villages. The rate of the subsidence is ap- proximately 2 cm/day.
Pencemaran air raksa (Hg) sebagai dampak pengolahan bijih emas di Sungai Ciliunggunung, Waluran, Kabupaten Sukabumi
Authors: Widodo Widodo
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol3no3.20083Gold ore mining at Waluran Subregency, Sukabumi Regency was carried out by an underground mining method, and only rock that contains high enough gold ore would be taken (selective mining). The gold ore from the mining was processed with a direct amalgamation method, so it produced low gold concentrate, but the concentrate of mercury discarded to the river was high enough. Monitoring result of water and sedimentation in Ciliunggunung River in 2004, showed that the river was contamined by mercury (Hg), and the contamination was above the value limit. This happened especially in August 2005 where the Hg content was about 0.218 mg/l on the Ciliunggunung River in CLG.07. The chemical analysis result of heavy metals for the water of the Ciliunggunung River in CLG.07 was known to contain Fe above the standard drinking water criteria, meanwhile Mn, Cu, Pb, and As were still under the maximum drinking water criteria value. To decrease the mercury contamination, it is suggested the process of gold ore from the amalgamation direct method to be changed to the amalgamation indirect method. The indirect gold ore amalgamation process consists of: removing fine particles by washing, grinding ore, and the amalgamation phase. The total impact of the indirect amalgamation method will increase the tying of gold by mercury, so the losing of mercury will be decreased and the gain of gold will be optimum.
Fasies dan lingkungan pengendapan Formasi Bobong berumur Jura sebagai pembawa lapisan batubara di Taliabu, Kepulauan Sanana-Sula, Maluku Utara
Authors: Kusnama Kusnama
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol3no3.20085The Bobong Formation is a coarse clastic sedimentary rock succession. In the lower part, it consists of breccia and conglomerate facies, then followed by quartz sandstone with intercalations of claystone facies. Upwards, the rock succession is gradually changed to become alternating shale, claystone and mudstone. In the upper section the rock unit is well exposed in the western and northern parts of the Taliabu Island. The formation is Jurassic in age and it was deposited within a fluvial-transition to shallow marine environ- ment. The coal bed found within quartz sandstone and shale and claystone-mudstone facies ocupies the upper part succession of the Bobong Formation. The coal in the Taliabu Island has two seams having a thickness of 30 - 40 cm and 100 - 120 cm, respectively. The geochemical analysis result indicates that the calorific value ranges from 6,186 to 7,350 cal/g, the sulphur content is from 3% to 4.65% , fixed carbon ranges from 45.69 to 53,96%, and ash content from 7.86 - 16.37%. On the basis of those parameter, the coal within the Bobong Formation is categorized as subbituminous to high volatile bituminous rank.
Litostratigrafi dan sedimentasi Formasi Kebo dan Formasi Butak di Pegunungan Baturagung, Jawa Tengah Bagian Selatan
Authors: Surono Surono
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol3no4.20081Lithologically, the Nampurejo Pillow Lava, Kebo and Butak Formations, which are dominated by volcanic rocks, spread west - eastly, along the northern foot of the Baturagung Mountains. The Nampurejo Pillow Lava, which has an Early Oligocene age, is overlain by the Late Oligocene - Early Miocene Kebo and Butak Formations successively. The Nampurejo Pillow Lava consists of basaltic pillow-lavas showing pillow structures and they are intercalated by black sandstones. The Kebo Formation comprises alternating sandstone and pebbly sandstone with intercalations of siltstone, claystone, tuff, and shale. On the other hand, the Butak For- mation is composed of polymic breccia with intercalations of sandstone, pebbly sandstone, claystone, and siltstone/shale. The three units were deposited in a deep – shallow marine basin, which was filled by volcanic prod- ucts. Compared to the lower part of the Kebo Formation, volcanic activities during the deposition of the upper part of the Kebo Formation and the Butak Formation were more active.
Tinjauan Kemungkinan Sebaran Unsur Tanah Jarang (REE) di Lingkungan Panas Bumi
Authors: Herman Danny Zulkifli
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol4no1.20091Geothermal areas occur mainly in an environment of volcanic/magmatic arc where magma chambers play a role as heat sources. The environment is situated within the convergent plate boundaries. A variety of igneous rocks is associated with this environment ranging from basalt (gabbro) to rhyolite (granite) but andesite is normally the most abundant igneous rock. The most obvious geothermal indications are exhibited by some surface manifestations comprising hot water seepage, fumaroles, hot spring, geyser, and hydrotermal alteration zones which are being evidences of an active hydrothermal system beneath the surface as a part of volcanism. Despite being a causal factor for alteration of country rocks, most hydrothermal fluids enable to change distribution pattern and content of rare earth elements (REE for instance Ce, Eu, La, Lu, Sm, Nd, and Y) particularly during a reaction process. This may have a connection with development of element mobility rates, whilst the characteristics of REE pattern within hydrothermal fluid would have a high variable due to dependency of their original magma source. Considering the important role of hydrothermal fluid in REE mobility development, it is inspired to review the possible relationship of active hydrothermal system and potency of REE distribution pattern in areas of geothermal manifestation.
Waduk Parangjoho dan Songputri: Alternatif Sumber Erupsi Formasi Semilir di daerah Eromoko, Kabupaten Wonogiri, Jawa Tengah
Authors: Bronto Sutikno , Mulyaningsih Sri , Hartono G. , Astuti B.
Published: March 2024

http://dx.doi.org/10.17014/ijog.vol4no2.20091The Semilir Formation was typically originated from products of a very explosive volcanic activity, i.e. breccias, lapillistones, and tuffs containing abundant pumice. It has a light grey to white colour and high silica andesite to dacite in composition, mainly rich in volcanic glass and quartz. Sedimentary structures of these volcanic rocks are massive, grading, planar bedding, and cross-bedding to antidunes, with grain size varies from ash (≤ 2 mm) to lapilli (2 – 64 mm) to bomb and block (> 64 mm). The formation is widely distributed from the west side (Pleret and Piyungan areas, Bantul Regency, Special Province of Yogyakarta) until Eromoko area in the east (Wonogiri Regency, Jawa Tengah Province). Stratigraphically, the Semilir Formation underlies the Nglanggeran Formation, and overlies the Mandalika Formation in the eastern part and Kebo-Butak Formation in the western part. Geomorphological- and lithological analyses of the Semilir Formation in areas of Parangjoho and Song- putri Dams, Eromoko Sub-regency, Wonogiri Regency indicate that the two depressions were alternatively volcanic sources of the Semilir Formation in the Eromoko area. This is proved by the presence of co-ignimbrite breccias(co-ignimbrite lag fall deposits), that descriptively they are polymict breccias. This rock is characterized by a mixing of pumice and various hard rock fragments that primarily are juvenile materials (volcanic blocks, bombs), accessory-, and accidental rock fragments set in pumice-rich volcanic ash and lapilli sizes. The accessory materials came from older volcanic rocks, whereas the accidental ones were originated from basement rocks. During a caldera forming event or a destruction period of an older composite volcanic cone(s), all older rocks resting above the magma chamber were ejected to the surface by a very high magmatic pressure. Since they were heavier than the juvenile material, most accessory and accidental rock fragments were left (lag fall) in caldera rim behind the ash and pumice flow. In the dam areas of Parangjoho and Songputri, the lag fall fragments consisting of andesite, pyroxene andesite, dacite, and pumice, being 10 – 150 cm in diameter are set in pumice-rich lapilli tuffs. Some of the rock fragments are volcanic blocks and bombs, while the older rocks are angular to very angular shape, having prismatic jointing or jigsaw-crack structures. The eruptions in the Parangjoho and Songputri craters were controlled by north-south trending fractures, and they resemble to the Katmaian caldera explosion type.