bluuebunny/crossref_metadata_2025 huggingface dataset:
Evolving Paradigms in Complex IVC Filter Retrieval
Authors: Stibbs Peter , Dewart Steven , White James , Lewis Michael , Chapman Dory
Published: February 2024

The landscape of interventional radiology has witnessed a remarkable evolution in the domain of inferior vena cava (IVC) filterretrievals, heralding a new era of procedural innovation and technical prowess.The impetus for this transformation has been the development and integration of diverse technical tools and the refinement of skill sets among practitioners, facilitating a paradigmatic shift in how complex retrievals are approached and executed.Historically, the procedural orthodoxy for IVC filter retrieval has been predominantly anchored in the utilization of standard techniques such as the loop and snare or the snare and sheath methods. These conventional methodologies have been explicitly delineated within the Instructions for Use (IFU) by filter manufacturers as the recommended approaches for retrieval, thus shaping the procedural norms within the field. However, the clinical landscape is markedly dynamic, characterized by a continuous influx of complex cases where traditional retrieval methods may not suffice due to various complicating factors such as filter tilt, migration, embedding within the venous wall, or significant endothelialization.Such complexities necessitate a reevaluation of conventional strategies and the exploration of alternative, more versatile techniques capable of addressing the unique challenges presented by these difficult-to-retrieve filters.
Estudo de resenhas no ensino superior à luz da perspectiva do estilo dos gêneros
Authors: Pereira Daniervelin Renata Marques
Published: February 2024

Este artigo parte da problemática do ensino de gêneros acadêmicos no ensino superior, especificamente na abordagem do gênero resenha. Fazemos uma análise do gênero resenha em contexto de entretenimento midiático e no contexto acadêmico, a partir de três exemplares de cada um. Em seguida, mostramos uma proposta didática de abordagem das resenhas no ensino superior nos apoiando em resultados da primeira análise e utilizando a experiência vivenciada em uma disciplina de introdução à pesquisa científica de uma universidade federal, em que esse gênero integra a ementa. Para a análise do gênero resenha, aplicamos a metodologia de análise discursiva do estilo do gênero, associando o percurso metodológico da semiótica francesa aos estudos de gênero de Bakhtin. Essa relação é considerada proveitosa teoricamente para os estudos do estilo do gênero, que levam em conta a recorrência de um modo de ser de um determinado gênero em suas várias realizações. A sistematização dos resultados mostra que os estudos do estilo do gênero podem contribuir na melhor compreensão dos gêneros discursivos, já que permitem depreender seu modo próprio de construção e circulação em cada esfera de comunicação. A comparação de um mesmo gênero (resenha) em contextos diferentes – midiático e acadêmico – pode facilitar a abordagem em sala de aula e propiciar uma interação que vá do mais informal ao mais formal, acompanhando a orientação do gênero nos dois contextos. Com esta pesquisa, relacionamos resultados de pesquisas teóricas a aplicações práticas, buscando contribuições para o ensino superior.
A Construção das Identidades da personagem Marji na HQ Persépolis
Authors: Oliveira Wanessa Rodovalho Melo , Kailer Dircel Aparecida
Published: February 2024

O presente estudo, com base na Sociolinguística laboviana (Labov, 2008), nas Crenças e Atitudes dos psicólogos sociais  Lambert e Lambert (1972) e  do linguista Moreno Fernández (1998), assim como nas noções de  identidade segundo Bordieu (1977), Mendoza-Denton (2002), Bonnewitz (2003), Hall (2006), Kiesling (2013), Battisti (2014) e Oushiro (2019), tem como objetivo principal analisar   como a convivência com diferentes grupos sociais reflete na construção da identidade, nas crenças e atitudes linguísticas de Marji, personagem principal da História em Quadrinhos (HQ): Persépolis. A escolha dessa história para o presente estudo justifica-se por sua importância histórica quanto ao papel da mulher em algumas comunidades do Oriente Médio e por ser a primeira HQ escrita, de forma autobiográfica, por uma mulher iraniana. Ela é narrada do ponto de vista de Marji e discorre sobre a imposição do islamismo no Irã.  Nesta pesquisa de cunho descritivo e interpretativo (Moita Lopes, 1994), temos também como objetivos a) expor alguns aspectos sociais, históricos e políticos narrados, na História em Quadrinhos Persépolis; b) verificar, com base nos relatos da protagonista Marji, algumas imposições à mulher iraniana.  A partir da análise, foi possível, de modo geral, observar como as crenças e as atitudes da protagonista influenciaram na construção de suas identidades de acordo com a participação em diferentes comunidades dentro e fora do Irã.
Expansão do capital e sujeição da renda camponesa na produção de cana e cachaça no povoado de Santa Luzia-Caetité-BA
Authors: Soares Fabiana Gomes , Souza Suzane Tosta
Published: February 2024

O presente artigo visa analisar as transformações ocorridas no cultivo da cana, desde o processo da produção à comercialização da cachaça no povoado de Santa Luzia-Caetité-BA, em decorrência das exigências do mercado, e no que essas implicam na reprodução da vida dos sujeitos/famílias que vivem do trabalho na terra. A pesquisa consiste, por meio de uma problemática concreta, na busca de um aparato teórico que dê suporte ao tratamento da questão agrária brasileira, bem como de fontes documentais em instituições públicas, e no que essas se confrontam com a lógica de vida das famílias pesquisadas. Por fim, à luz do aparato teórico que evidencia a realidade como parte das contradições sociais e históricas, realizou-se pesquisa de campo nas unidades de produção, por meio de entrevistas com os produtores diretos. As diversas atividades realizadas não perderam de vista a relação teoria e prática, em que, dialeticamente, uma se recria na outra. Verificou-se que as formas de intervenção do capital no campo, via sujeição da renda da terra, vêm representando dificuldades concretas no processo de reprodução das famílias camponesas. Ainda assim, estas permanecem na terra e lutam para melhorar a produção e suas condições de vida.
Pesantren Earlier dalam Implementasi Kurikulum Merdeka: Studi Kasus di Pondok Pesantren Mambaul Ulum Bata Bata
Authors: Wafi Abdul , Umarul Faruk
Published: February 2024

Penelitian ini berfokus pada implementasi konsep "Earlier" dalam kurikulum merdeka di Pondok Pesantren Mambaul Ulum Bata Bata, Pamekasan, Jawa Timur, dengan tujuan untuk memahami pendekatan dan hasil implementasinya. Metode yang digunakan adalah studi kasus kualitatif, mengumpulkan data melalui observasi dan wawancara dari berbagai sumber, termasuk kepala madrasah, wakil kepala, guru, dan alumni. Hasil penelitian menunjukkan kesamaan signifikan antara kurikulum pesantren ini dan prinsip kurikulum merdeka, termasuk program takhassus badan otonom untuk pengembangan potensi santri, terintegrasi di semua tingkatan lembaga, dan kebebasan dalam memilih program. Selain itu, Pekan Ngaji tahunan mencerminkan tujuan Proyek Penguatan Profil Pelajar Pancasila (P5) dan berkontribusi terhadap penciptaan lulusan yang mampu bersaing di tingkat nasional dan internasional. Penelitian ini memiliki implikasi penting bagi pendidikan, menunjukkan bahwa pendekatan inovatif dan holistik kurikulum merdeka dapat diadaptasi di berbagai institusi pendidikan. Namun, keterbatasan penelitian ini mencakup konteks khusus Pondok Pesantren Mambaul Ulum Bata Bata dan perlu lebih banyak penelitian untuk memahami implementasi kurikulum merdeka di konteks lain. Dari sisi praktis, hasil ini menunjukkan pentingnya pendidikan yang fleksibel dan berpusat pada siswa, yang mempersiapkan generasi masa depan untuk era global dan majunya Indonesia tahun 2045.
Determination of Strategy Planning of Domestic Wastewater Management System in a Commercial Area of Tasikmalaya City
Authors: Dirgawati Mila , Sururi Mohamad Rangga , Suhendar Dhama Yudha
Published: February 2024

The domestic wastewater in Cihideung and Tawang Subdistricts as central business district (CBD) areas in Tasikmalaya City is only served by an on-site domestic wastewater management system or Sistem Pengelolaan Air Limbah Domestik Setempat (SPALD-S) which could deteriorate the environment. This study aims to determine the most appropriate type, strategy, and development direction of SPALD based on the existing local conditions for the next 20 years in CBD areas in big cities such as Tasikmalaya. The two methods were used: the multicriteria decision analysis method which refers to the Regulation of the Minister of PUPR Number 04 of 2017, and the Quantitative SWOT analysis method refers to the Guidelines for Preparing a Wastewater Management System Plan. The results of the analysis show that integrated SPALD (SPALD-T) must be implemented aggressively in the two sub-districts based on the key parameters of the existing SPALD conditions, potential for soil contamination, potential danger to air receiving bodies, socio-economic characteristics of the community, public health conditions, education level, financial capability, and the availability of regulations regarding SPALD. The SPALD-T development is suggested to be carried out in stages by determining priority zones for every five years of the planning period.
Removal Efficiency of Total Chrome (Cr-T) from Textile Industry Wastewater PT. X with Sodium Bentonite Using the Adsorption Method
Authors: Hartati Etih , Nur Azizah Raisa , Marganingrum Dyah
Published: February 2024

As much as 10-50% of dye wastewater from the dyeing process is discharged directly into the environment. Chromium is the metal most often found in textile industry wastewater, one of which comes from dyes of the Congo Red type, so processing is required. One of the treatments to remove total chromium from textile industry wastewater is adsorption, with sodium bentonite as an adsorbent. This study aimed to determine the optimum efficiency and processing of total chromium using sodium bentonite as an adsorbent with a batch system and to determine the appropriate type of isotherm. The method used to test total chromium was the standard addition method which was then measured using an AAS (Atomic Absorption Spectrophotometry). The variables studied were the effect of wastewater pH, sodium bentonite and grain size of wastewater on the efficiency of total chromium removal. The types of isotherms tested are Langmuir and Freundlich isotherms. In removing total chromium with sodium bentonite, optimum conditions were obtained at pH 8 with a grain size of 80 mesh and a volume of 50% wastewater with a removal efficiency of 98.08%. The appropriate isotherm model for sodium bentonite is the Freundlich isotherm.
The Impact of the Sarimukti Landfill's on the Water Quality of the Cipanawuan River
Authors: Wardhani Eka , Alessandra Vamela Gianina
Published: February 2024

Sarimukti Landfill operations use a controlled landfill system. The Cipanawuan River is affected by the operational impact of this Landfill. This study aims to identify the effect of leachate from the Sarimukti Landfill on the water quality of the Cipanawuan River. The research method calculates water quality status based on the Decree of the State Minister for the Environment No. 115 of 2003 concerning Guidelines for Determining Water Quality Status. River water quality standards are based on Appendix VI of Government Regulation No. 22 of 2021 concerning implementing Environmental Protection and Management. Water quality parameters identified are parameters that exceed quality standards. Based on the water quality status calculation shows a decrease in water quality from upstream to downstream of the river. The downstream part has been heavily polluted, indicating that there is influence from Sarimukti Landfill operations. Based on the research results, Sarimukti's Treatment Plant's flowing quality for TSS, BOD, and COD is needed to meet quality standards. This can affect water quality, and there is a relationship between the influence of Sarimukti Landfill operations on the water quality of the Cipanawuan River, which is near the Landfill.
EVALUASI KINERJA SISTEM PEMBANGKIT LISTRIK TENAGA SURYA HYBRID PADA GEDUNG CENTRE OF EXCELLENCE UNIVERSITAS
Authors: Hernawan Agung Febriana , Mulyana Elih , Trisno Bambang
Published: February 2024

Pembangkit Listrik Tenaga Surya (PLTS) Hybrid yang terdiri atas PLTS 5,35 KwP dan PLTB 2 KW merupakan salah satu pembangkit listrik yang dibangun di lingkungan kampus Universitas Pendidikan Indonesia, digunakan sebagai salah satu energi alternatif untuk memenuhi kebutuhan listrik berupa lampu sebanyak 54 buah dengan total daya sebesar 624 Watt di Gedung Centre of Excellence (CoE). Sejak dilakukan pembangunan PLTS Hybrid, belum banyak diketahui potensi produksi daya listrik yang dihasilkan, performa masing-masing pembangkit serta seberapa besar pengaruh produksi daya listrik terhadap konsumsi beban listrik harian. Sehingga diperlukan adanya evaluasi untuk mengetahui seberapa efektif kinerja sistem serta kendala-kendala yang terjadi pada PLTS Hybrid. Untuk mengetahui kinerja dari PLTS Hybrid, maka dilakukan observasi dengan cara pengukuran secara langsung dilapangan serta dilakukan analisa data perhitungan produksi daya, efisiensi dan pengaruh produksi daya yang dihasilkan terhadap penggunaan beban listrik. Hasilnya performa PLTS 18,52% dengan rata-rata harian intensitas radiasi matahari sebesar 518,22 W/m2, dan menghasilkan produksi daya listrik sebesar 659,91 watt, mampu untuk memenuhi kebutuhan konsumsi beban listrik harian selama 11 jam pemakaian. Adapun performa PLTB 25,9, % dengan rata-rata harian kecepatan angin sebesar 2,2 m/s dan menghasilkan rata-rata produksi daya listrik harian selama 11 jam sebesar 12,89 watt belum mampu untuk memberikan pengaruh yang signifikan terhadap pemakaian beban listrik yang digunakan.
Distribution pattern and management of invasive alien plant species in Sikkim Himalaya, India
Authors: Nayak Rashmi , Verma Anil Kumar , N Manika  , Chaudhary Lal Babu , Behera Soumit Kumar , Bargali Kiran , Pandey Vashist Narayan
Published: February 2024

An assessment of the distribution pattern of Invasive Alien Plant species in the Sikkim Himalayas was conducted at different elevation gradients and accordingly, management strategies were recommended to combat the ever-increasing condition of invasive plant species threatening the sensitive ecoregions. Among the most relevant factors supporting the present study were changes in the importance value index (IVI), variety, and evenness. There is a greater percentage of domination of invasion at lower elevations than at higher elevations. Species diversity, dominance, and evenness values decreased significantly at higher elevations; interestingly, the fraction of invaded regions is lower at higher elevations. Several factors may contribute to the large cover of invasive plants at lower elevations, including the enabling climate and anthropogenic activities. As a result of invasive alien plant species, such as Ageratum conyzoides, Ageratina adenophora, Bidens pilosa, Chromolaena odorata, Lantana camara, Mikania micrantha and Parthenium hysterophorus, native vegetation, and fauna may suffer adverse consequences, as well as socioeconomic conditions and health issues. This study determined that the invasion of these invasive alien plants in different elevations in the Sikkim Himalaya impacts ecosystem services and depletes several species of commercial importance. The current study recommends quick action to control harmful invasive alien plant species in the Sikkim Himalaya
Sen w butelce Kleina: wiersz Ihora Muratowa „We śnie”
Authors: Reese Kevin Mitchell , Wright John , Tymczenko Antonina
Published: February 2024

Literatura charkowska połowy XX wieku, po przeniesieniu stolicy do Kijowa, przez długi czas pozostawała mało znana ogółowi społeczeństwa; tendencja ta utrzymuje się do dziś. Jednak tradycję Czerwonego Renesansu godnie kontynuowała cała konstelacja niezwykle utalentowanych artystów – Wasyl Mysyk, Ihor Muratow, Wasyl Borowy, Iwan Wyrhan, Robert Tretiakow. W artykule podjęto analizy jednego w wierszy Ihora Muratowa (We śnie), wybitnego poety, prozaika i dramaturga XX wieku. Badacze proponują mikroanalizę tego wiersza, w toku której odkrywano podteksty i dokonywano odczytania ukrytych znaczeń zawartych w jego treści. Liryczna kompozycja odwraca typowy sen o ucieczce: to, co normalnie byłoby wizją wolności, staje się koszmarem zniewolenia. Sen przedstawiony zostaje jako analogia pobytu dziecka w łonie matki. W procesie interpretacji wiersza ujawnia się podobieństwo struktury semantycznej tego tekstu do samoprzecięć butelki Kleina, a także inne nieoczekiwane konteksty i aluzje. Stwierdzono, że w szczególności liryk We śnie i w ogóle twórczość Muratowa jest zjawiskiem niezwykłym w literaturze ukraińskiej okresu sowieckiego i potrzebuje dalszych badań
Reference intervals for high sensitivity cardiac troponin I and N-terminal pro-B-type natriuretic peptide in children and adolescents on the Siemens Atellica
Authors: Ameh Akoji , Brady Jennifer J.
Published: February 2024

Objectives

The cardiac biomarkers high sensitivity cardiac troponin I (hs-cTnI) and N-terminal pro-B-type natriuretic peptide (NT-proBNP) are utilised in paediatric healthcare for the diagnosis and prognostic assessment of many conditions including myocarditis, congenital heart disease, multisystem inflammatory syndrome in children (MIS-C) and heart failure. However, the standardised age-related reference intervals, 99th percentile cut-offs and clinical guidelines are not available, making the interpretation of these biomarkers challenging. This study aimed to generate normative data in a paediatric cohort for the Siemens Atellica® IM 1300 analyser.

Methods

Residual plasma samples were collected from children aged up to 17 years attending primary care and out-patient settings and with no apparent evidence of cardiac dysfunction, renal dysfunction or other confounders. Reference intervals were generated using the 2.5th–97.5th percentiles, and 99th percentile cut-offs determined according to CLSI EP28-A3c.

Results

Statistical analysis revealed that partitioning was not required for gender for either biomarker. The reference interval for hs-cTnI for children aged one month to 16 years (n=292, 146 females and 146 males) was <14 ng/L with a 99th percentile cut-off of 19 ng/L. The reference interval for NT-proBNP for children aged one month up to one year was <714 ng/L (n=14) and for children aged 1–16 years (n=339) was <295 ng/L.

Conclusions

This is the first paediatric reference interval data generated on the Siemens Atellica® solution. These reference intervals and 99th percentiles will inform clinical decisions in the paediatric cardiology setting.
Vestlandet – A Place of Cultural Encounter
Authors: Krutzinna Leonie , Schmidt Maike , Øveraas Morten
Published: February 2024

This article focuses on Norwegian–German cultural contacts in Western Norway in the first half of the 20th century. Although rural Western Norway has always been difficult to access, numerous cultural interrelations between German- and Norwegian-speaking artists, writers, and philosophers can be observed. These encounters can be characterised as real exchanges from person to person, but also as exchanges between persons and texts, or between persons and landscape. The article provides an overview of the Vestlandet region as a place of cultural encounter, focusing on the aesthetic, political and historical context of the early to mid-20th century.
Inorganic nanoparticles promoted synthesis of oxygen-containing heterocycles
Authors: Devi Thangjam Linda , Singh Okram Mukherjee , Sharma Kongbrailatpam Gayatri
Published: February 2024

Since many of the U.S. Food and Drug Administration (FDA)-approved medications contain oxygen-containing heterocyclic molecules, they have been discovered to be quite important. Moreover, over the past 10 years, the field of reusable nanocatalysts has expanded quickly. Therefore, the development of nanotechnology has led to a wide range of applications for nanocatalysis in the synthesis of heterocyclic molecules. The domains of organic chemistry and pharmaceuticals have recently shown a great deal of interest in nanocatalyzed organic processes. Such nanocatalysts enable non-toxic, simpler, environmentally friendly, and more affordable synthetic processes that give only the most desirable compounds in higher quantities and provide simple catalyst separation. As a result of their efficient methods for separating catalysts and products, nanocatalysts were chosen over other catalysts for the synthesis of heterocyclic compounds. This review emphasized the preparation of nanocatalysts, synthetic approaches, and recycling studies of highly excited catalytic systems employed for the synthesis of oxygen-containing heterocyclic compounds.
HIV-1 and methamphetamine co-treatment in primary human astrocytes: TAARgeting ER/UPR dysfunction
Authors: Proulx Jessica M. , Park In-Woo , Borgmann Kathleen
Published: February 2024

Objectives

Human immunodeficiency virus 1 (HIV-1) can invade the central nervous system (CNS) early during infection and persist in the CNS for life despite effective antiretroviral treatment. Infection and activation of residential glial cells lead to low viral replication and chronic inflammation, which damage neurons contributing to a spectrum of HIV-associated neurocognitive disorders (HAND). Substance use, including methamphetamine (METH), can increase one’s risk and severity of HAND. Here, we investigate HIV-1/METH co-treatment in a key neurosupportive glial cell, astrocytes. Specifically, mitochondria-associated endoplasmic reticulum (ER) membrane (MAM) signaling pathways, such as calcium and the unfolded protein response (UPR), are key mechanisms underlying HAND pathology and arise as potential targets to combat astrocyte dysfunction.

Methods

Primary human astrocytes were transduced with a pseudotyped HIV-1 model and exposed to low-dose METH for seven days. We assessed changes in astrocyte HIV-1 infection, inflammation, mitochondrial antioxidant and dynamic protein expression, respiratory acitivity, mitochondrial calcium flux, and UPR/MAM mediator expression. We then tested a selective antagonist for METH-binding receptor, trace amine-associated receptor 1 (TAAR1) as a potetnial upstream regulator of METH-induced calcium flux and UPR/MAM mediator expression.

Results

Chronic METH exposure increased astrocyte HIV-1 infection. Moreover, HIV-1/METH co-treatment suppressed astrocyte antioxidant and metabolic capacity while increasing mitochondrial calcium load and protein expression of UPR messengers and MAM mediators. Notably, HIV-1 increases astrocyte TAAR1 expression, thus, could be a critical regulator of HIV-1/METH co-treatment in astrocytes. Indeed, selective antagonism of TAAR1 significantly inhibited cytosolic calcium flux and induction of UPR/MAM protein expression.

Conclusion

Altogether, our findings demonstrate HIV-1/METH-induced ER-mitochondrial dysfunction in astrocytes, whereas TAAR1 may be an upstream regulator for HIV-1/METH-mediated astrocyte dysfunction.
Photochemical synthesis in inorganic chemistry
Authors: Kanwal Rimsha , Al-Araji Riyadh R. , Ibrahim Ahmad H. , Iqbal Muhammad Adnan , Bibi Shamsa , Zafar Adina , Yaseen Muhammad , Shoukat Umar Sohail , Jamil Faisal
Published: February 2024

In the last few decades, photochemistry has great influence on all type of synthetic processes. While photochemical synthesis is emerging field in inorganic chemistry as it impart various magnificent properties to materials that are used for synthesis of nano-sized materials to giant supramolecular structures. There are many photochemical based synthetic approaches like electron, atom, energy transfer depending upon the need of product where one can switch the pathway. A variety of inorganic compounds have been synthesized like dienes, nitrides, indoles, gold nano-particles and supramolecular structures using photochemical route. Photochemical synthesis has various applications like artificial photosynthesis and fluorophores.
Inorganic-polymer composite electrolytes: basics, fabrications, challenges and future perspectives
Authors: Khan Shahab , Ullah Ishfaq , Rahman Mudassir Ur , Khan Hamayun , Shah Abdul Bari , Althomali Raed H. , Rahman Mohammed M.
Published: February 2024

This review covers the basics of, inorganic-polymer composite electrolyte materials that combine inorganic components with polymer matrices to enhance the ionic conductivity and mechanical properties of the electrolyte. These composite electrolytes are commonly employed in solid-state batteries, fuel cells, supercapacitors, and other electrochemical devices. The incorporation of inorganic components, such as ceramic nanoparticles or metal oxides, into a polymer matrix provides several advantages. The inorganic components can improve the overall ionic conductivity by providing pathways for ion transport, reducing the tortuosity of the polymer matrix, and facilitating ion hopping between polymer chains. Additionally, inorganic materials often exhibit higher thermal and chemical stability compared to pure polymers, which can enhance the safety and durability of composite electrolytes. Polymer matrices used in inorganic-polymer composite electrolytes can vary, but common choices include polyethylene oxide (PEO), polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN), and polyethylene oxide/polypropylene oxide (PEO/PPO) blends. These polymers offer good mechanical flexibility and processability, allowing for the fabrication of thin films or membranes. The fabrication methods for inorganic-polymer composite electrolytes depend on the specific application and desired properties. Common approaches include solution casting, in situ polymerization, melt blending, and electrospinning. During the fabrication process, the inorganic components are typically dispersed or mixed with the polymer matrix, and the resulting composite is processed into the desired form, such as films, membranes, or coatings. The performance of inorganic-polymer composite electrolytes is evaluated based on their ionic conductivity, mechanical strength, electrochemical stability, and compatibility with the electrode materials. Researchers continue to explore various combinations of inorganic and polymer components, as well as optimization strategies, to further improve the overall performance of these composite electrolytes for advanced energy storage and conversion applications.
Pszichofiziológiai elemek vizsgálata technikai sportban szereplő, utánpótláskorú sportolók körében
Authors:   ,   PTE ETK Egészségtudományi Doktori Iskola, Kerner László
Published: February 2024

A motocross olyan motorkerékpáros terepverseny, ahol a teljesítményt általában a versenyző, a motorkerékpár, és a környezet kölcsönhatásaiként összegezhetjük. Doktori dolgozatom témaválasztása a motorsporttal kapcsolatos, célja pedig, hogy leírja és összehasonlítsa a serdülőkorú motocross versenyzők laboratóriumi és verseny körülmények között mért antropometriai és fiziológiás, felső- és alsóvégtag izomerejének jellemzőit, elemezze a verseny közben rög¬zített pulzusszámot, sebességet és a ká¬denciát, mint a lehetséges eredményesség jellem¬zőit. A doktori dolgozat vizsgálja továbbá a versenyzők affektív szorongással kapcsolatos pszichológiai jellemzőit is. A disszertáció igyekszik olyan eredményeket közvetíteni a szakemberek felé, melyek eredményesebbé tehetik a motocross versenyzőket és edzőiket a hazai és nemzetközi megmérettetéseken. Az eredmények ismeretében nyilvánvaló, hogy további kutatómunkára, bizonyítékokon alapuló (evidence-based) módszerek kidolgozására van szükség a sportolók magas színvonalú felkészítésének kialakításához, amelyek javíthatják a versenyeken nyújtott teljesítményüket. Kétségtelen, hogy a sportág jellegéből fakadóan a jövőbeni kutatásoknak törekedniük kell a transzverzális- mellett, a longitudinális fiziológiai, pszichológiai és biomechanikai vizsgálatok gyakoriságára. Az eredmények mélyebb megértése érdekében a metabolikus, mentális, technikai- és izomrendszeri hatások nagyságrendjét, az antropometriai jellemzőkkel összefüggő igénybevétel nagyságát is vizsgálni szükséges a későbbi kutatások során. Az emberi komponens hatása a végső teljesítményre jelenleg kevésbé tanulmányozott terület, így a versenyteljesítmény javítása érdekében ezt is figyelembe kell venni.
Perfil bibliométrico da Revista Ius Commune
Authors: MALANOVICZ Aline Vieira
Published: February 2024

The aim of this research was to investigate the profile and characteristics of the scientific output published in the Max Planck Institute's journal Ius Commune between 1967 and 2001. Bibliometric techniques were used, with a predominantly quantitative approach. The research universe consisted of all the articles published in all the editions of this journal. The bibliometric indicators measured were a total of 28 editions, 285 articles, 163 authors, 26 female authors, 22 nationalities and nine languages. The author who published the most in the journal was Johannes-Michael Scholz, with 19 articles. The nationality with the highest number of authors in the journal is German. The results show an overview of the topics covered and the authors, nationalities and languages that have contributed to the journal Ius Commune. A discussion of the results of this research concludes the importance of the journal Ius Commune for the diffusion, dissemination and socialization of scientific production on legal topics and for the formation of a legal conceptual framework for European unification.
Construction Trends and Meaning of Seowon in the Gyeongnam Region in Modern Times
Authors:   Institute of Korean Cultural Studies Yeungnam University, Park so hee
Published: February 2024

In the late Joseon Dynasty, Heungseon Daewongun abolished the seowon in 1868 due to the excessive construction of clan seowons and various problems of the seowons as the base of the Bungdang. Later, as Heungseon Daewongun stepped down in 1873, Confucian scholars actively engaged in the movement to restore seowon. In the Gyeongnam area, there were about 298 seowon and sau during the Joseon Dynasty. After the demolition, there were 31 new and restored places from 1868 to 1910, 38 Japanese colonial eras, and 78 places from liberation to the present, respectively. The first time was when Gojong, like Heungseon Daewongun, maintained a strong policy that it was impossible to restore seowon. For this reason, most Confucian scholars built an altar(壇) on behalf of Seowon and continued the ritual for ancient sages(先賢). If the conditions for setting up an altar were not possible, a school or shrine was established at the site of the seowon, and a yeongdang was established if there was a portrait. In Gyeongnam, 31 seowon were restored in various forms such as Jaesil, Gangdang, Jeongsa, Sau, and Jeongja. By region, there are 7 Sancheong, 4 in Changwon, Miryang, and Ulsan, 3 in Uiryeong, and 2 in Gimhae and Changnyeong, respectively.
Restoration and establishment of Japanese colonial era showed a slight increase from the previous period. This is because the effect of the abolition of seowon disappeared during the period, and the importance of traditional education was increasing as part of rescue activities through education. By region, there are 7 in Sancheong, 6 in Haman, 5 in Hapcheon, 3 in Geochang, Jinju, and Hamyang, and 2 in Uiryeong and Changnyeong regions, respectively.
After liberation, the growth rate increased from the 1970s, starting with four cases in the 1940s, and reached its peak in the 1980s, and has been rapidly decreasing since then. The increase since the 1970s seems to have occurred as a result of economic development that led to the honor of the family's famous ancestors. However, Doyang Seowon(道陽書院) in Sancheong established after 1978, Wolbong Seowon(月峰書院) in Gimhaein 1984, and Taedong Seowon (泰東書院) in Hapcheon in 2012, are characterized by celebrating Confucian scholars during the modern era. Seowon restored to commemorate the modern and contemporary Confucian scholars should be viewed from the perspective of establishing and reconstructing the academic transmission space of those who were the last heirs of traditional Confucianism, rather than simply seeing it as an outdated product.
Creating a publicly supported village and selling places
Authors:   Institute of Korean Cultural Studies Yeungnam University, Kim Yun Gyeong , Noh Yong Seok
Published: February 2024

Among the forms of village building, 'publicly supported village building' led by local governments and the government has been most actively promoted in the last two decades. This paper points out that publicly supported village building projects have been conducted under the premise of competition and self-reliance, and takes Dakbad-gol in the western part of Busan as a case study of a village's changing sense of place. Since the late 2000s, Busan has not only been carrying out its own local government-level village creation programs such as 'Sanbok- doro Renaissance' and 'Creating a Happy Village', but it is also the most selected city for the central government's 'Urban Regeneration New Deal Project' among metropolitan cities. The village of Dakbad-gol is noteworthy in that it is a place where the local government's village building project and the central government's urban regeneration project have been implemented successively. This paper examines the process by which an ordinary village in a mountain corridor, which was considered one of the backward areas in the city, was selected for publicly supported village building projects by the local and central governments, and used the strategy of selling places, and analyzes the logic and characteristics that contributed to the change.
A Proposed Link between Machine Runnability and Stickies Distribution within the Sheet
Authors:   Centre Technique du Papier, CS 90251, 38044 Grenoble, France, Huber P. , Delagoutte T. ,   Centre Technique du Papier, CS 90251, 38044 Grenoble, France, Ossard S. ,   Centre Technique du Papier, CS 90251, 38044 Grenoble, France, Soysouvanh D. ,   Centre Technique du Papier, CS 90251, 38044 Grenoble, France, Borel P. ,   Centre Technique du Papier, CS 90251, 38044 Grenoble, France
Published: February 2024

In recycled paper processes, stickies are at the origin of many production disturbances, such as machine breaks, defects in paper and converting problems. At the end of the recycling process, the most abundant and disturbing macro contaminants are fragments of pressure sensitive adhesives. These particles adhere to machines clothes, and clog the felts or even cause the break of the running paper web. The contamination is typically evaluated by measuring the total stickies concentration in the pulp after screening. However, industrial experience shows that it is difficult to correlate this stickies concentration with the occurrence of process disturbances. We suggest that only the amount of stickies that is effectively exposed at the surface of the sheet to the machine clothes is disturbing and is at the origin of runnability problems. In this work, we recall the definition of the stickies exposure, and use it to anticipate the effect of geometrical parameters on the fraction of stickies that are exposed at the surface of the sheet. Parameters such as stickies length and thickness, sheet thickness, or stickies orientation in the z-direction, are investigated. A new sensor is developed to characterise stickies in their 3 dimensions (without prior pressing), and discriminate them from other type of contaminants. Improvements compared to classical stickies measurements methods are discussed. The exposure of real stickies populations to machine clothes is measured in handsheets, and compared with results from the modelling.
Revisiting the Random Disk Model: Decomposition of Paper Structure Using Randomly Deposited Disks with Arbitrary Size Distributions
Authors:   Department of Chemical Engineering and Applied Chemistry, University of Toronto, Farnood Ramin , Ngai Darryl ,   Department of Chemical Engineering and Applied Chemistry, University of Toronto, Yan Ning ,   Department of Chemical Engineering and Applied Chemistry, University of Toronto
Published: February 2024

In this study, a numerical algorithm was developed to decompose the planar mass structure of paper into a random array of grey disks with a discrete size distribution. The optimum size and the frequency of these disks were determined such that the second order statistics of the corresponding random disk structure resembled that of the paper sample. Using this method, eighty two (82) commercial and laboratory-made samples were analyzed. It was found that; independent of the forming conditions, the average disk size was proportional to the standard deviation of the disk size distribution. The utility of this new tool in analyzing the effect of papermaking conditions on paper formation is illustrated.
Observation of the Turbulent Transition of a Fibre Suspension in Hagen-Poiseuille Flow
Authors:   Department of Mechanical Engineering, University of British Columbia, Nikbakht A. , Madani A. ,   Department of Mechanical Engineering, University of British Columbia, Olson J. A. ,   Department of Mechanical Engineering, University of British Columbia, Martinez D. M. ,   Department of Chemical and Biological Engineering, University of British Columbia
Published: February 2024

The focus of the present work is an experimental study of the transition to turbulent ow of papermaking fibre suspensions in a cylindrical pipe. The suspensions used in this study possess yield stress. With this class of fluid the axial profile in fully developed slow ow is characterized by an unyielded or plug zone. With increasing ow rates the size of the plug diminishes. One of the remaining open questions with these suspensions is the role of the plug during transition. In this work we characterize the size of the plug using ultrasound Doppler velocimetry (UDV) as a function of ow rate for dilute, i.e. less than 2% consistency, papermaking suspensions in a 50 mm diameter, 10 m long cylindrical pipe. The plug size was determined through analysis of local spatial and temporal variations of the velocity, strain- rate and the fluctuating component of velocity. With this, we were able to estimate the yield stress of the suspension through knowledge of the applied pressure gradient and find the yield stress to be in the range of 2–10 Pa, depending upon the consistency and Reynolds number Re. We observe complex behavior with the plug in which we see initially that with increasing velocity, the plug diminishes through a densification-type mechanism in a response to an increase frictional pressure drop. At higher Re, it diminishes through an erosion-type behavior. We estimate the critical Reynolds number Rec for the disappearance of the plug to be Rec ~ 105.
Towards Wet Resilient Paper – Fiber Modiﬁcations and Test Method Development
Authors:   Department of Chemical Engineering, McMaster University, Gustafsson Emil , Wang Zuohe ,   Department of Chemical Engineering, McMaster University, Polat Osman ,   The Procter & Gamble Company, Cincinnati, Ohio, Ostendorf Ward W. ,   The Procter & Gamble Company, Cincinnati, Ohio, Sheehan Jeffrey G. ,   The Procter & Gamble Company, Cincinnati, Ohio, Pelton Robert ,   Department of Chemical Engineering, McMaster University
Published: February 2024

Wet paper that has been crumpled into a ball shows little tendency to recover to a planar shape when the applied pressure is released – a characteristic called poor wet resiliency. We report the results of an investigation into approaches to improve paper wet resiliency through the choice of fiber types and fiber treatments. Following the lead of the textile industry and the patent literature, wet recovery angle (WRA) was used as a measure of wet resiliency. In this technique, wet strips of paper are folded, without creasing, pressed, and then released. The WRA was measured after the paper relaxed – the greater the WRA, the more resilient the paper. All of our sheets with a WRA > 0° contained PAE, a standard wet strength resin. Except for sheets based on Abaca fibers, standard PAE or PAE + CMC (carboxymethyl cellulose) applications gave very low WRA. Instead, conventional fibers had to undergo wither TEMPO oxidation or CMC grafting before PAE application. Both fiber treatments substantially increase fiber surface charge density, promoting PAE adsorption and, more importantly, giving covalent bonding sites on the fiber surfaces for grafting PAE. When comparing the WRA values from treated fibers (TEMPO oxidation or CMC grafting), the ranking was Abaca >>Lyocell > bleached southern softwood kraft > bleached eucalyptus kraft. For pulp mixtures, treated fiber contents of 20-40% had a much bigger influence on WRA compared to wet tensile strength. Wet-resiliency is due to the swelling of the “hinge region” in folded wet paper, in combination with a sufficiently strong fiber network that can translate the swelling forces into shape recovery. Limited data suggests that the extent of recovery from z-directional wet compression is directly correlated with WRA values. By contrast, wet tensile strength is weakly correlated with WRA.
Finding the main facial aging vector force to reverse the impact of soft tissues and weak ligaments to the original youthful face
Authors: Maluf Azevedo Luciana Cirillo , Speyer Valim Carolina , Jeronymo Pardi Beatriz
Published: February 2024

Background: In order to reverse a flabby face, we need to be aware of where the main vectorial aging face force, which is the sum of the descendent forces like gravity, attenuated ligaments and facial fat deflation, is placed. Main soft tissues promote medial inferior deflation and fat compartment shape changes. Aims: We propose a new method to find the angle of the main vectorial facial aging without the need to visualize the zygomaticus major muscle directly, but instead by doing a finger test by pulling the skin upwards and laterally with the patient’s head in the upright position. Patients/ Methods: We collected facial measures from 73 female subjects within the Brazilian population, aged between 30 to 69 years old. Then, the main aging vector angle was measured on each participant sitting in the upright position guided by a standardized protocol. Results: The median aging vector angle was made and the patients were divided into age-groups from 30 to 39 years old (52.5o), from 40 to 49 (51o); 50 to 59 (55o) and 60 to 69 (51o). Conclusions: According to our study and statistical analysis we could find the main facial aging vector angle between 30 and 69 years old didn’t vary significantly and was around 51°to 55°. Our aim was to propose guidance to a better natural surgical or nonsurgical lifting strategy that focuses on the reversal of flabby tissues (inferomedially) by counteracting the main facial aging vector force toward the superior-lateral facial area.
A case report of patent ductus arteriosus in a Brazilian longhair female kitten
Authors: Ruggero Errante Paolo
Published: February 2024

Among the congenital cardiac alterations observed in small pets, the persistence of the right aortic arch has been described as a rare anomaly in cats. The ductus arteriosus corresponds to a normal fetal vascular structure derived from the distal portion of the sixth left aortic arch that connects the pulmonary artery to the dorsal aorta. During fetal life, this structure has the function of transporting oxygenated blood from the maternal placenta to the aorta, bypassing the collapsed lungs of the fetus. At birth, the increase of O2 partial pressure dissolved in arterial blood (PaO2) and the decline in prostaglandin concentration cause the closure of the ductus arteriosus in the first hours of life, giving rise to the ligamentum arteriosus. If this process does not occur, the ductus arteriosus will remain patent. In this case report, a 4-month-old longhair female kitten was treated, and, during auscultation, a heart murmur was found. After performing a Doppler echocardiogram and color flow mapping, the presence of continuous turbulent flow in the pulmonary artery was demonstrated, characteristic of patent ductus arteriosus persistence. The animal was sent for surgery, and in the post-surgical Doppler echocardiogram, correction of patent ductus arteriosus was verified, demonstrating the absence of continuous turbulent flow in the pulmonary artery.
The Value of Tolerance in Tanbih Implemented through the Covert Curriculum at the Suryalaya Islamic Boarding School, Tasikmalaya
Authors: Zamzami Zaki
Published: February 2024

This study explains the values of tolerance through a hidden curriculum based on the teachings of tanbih as a pesantren guideline for teaching the noble values of living in harmony. Tanbih is a testament from the founder of the Pesantren regarding life guidance that all components of the extended family of the Pesantren Suryalaya must carry out. Previous studies have explained that the interaction between teachers and students is an essential element in the success of the hidden curriculum and that certain religious values can affect religious tolerance. Based on this study, researchers argue that cultural/religious values are an important foundation in internalizing tolerance education in schools. In this study, the researchers focused on the value of tanbih as an element of Islamic culture that underlies tolerance education in Pesantren through a hidden curriculum. This study uses a qualitative approach with observation techniques, literature studies, and in-depth interviews. In theoretical analysis, the value of tanbih is an Islamic cultural element that underlies various hidden curriculum components to foster tolerance in students. Cultural/religious values that form the basis of religious education must receive special attention to reduce the potential for intolerant education.
A cobalt concentration sensitive Btu-like system facilitates cobalamin uptake in Anabaena sp. PCC 7120
Authors: Graf Julia , Fresenborg Leonard , Seitz Hans-Michael , Pernil Rafael , Schleiff Enrico
Published: February 2024

Metal homeostasis is central to all forms of life, as metals are es-sential micronutrients with toxic effects at elevated levels. Macromolecular machines facilitate metal uptake into the cells and their intracellular level is regulated by multiple means, which can involve RNA elements and proteina-ceous components. While the general principles and components for uptake and cellular content regulation of, e.g., cobalt have been identified for prote-obacteria, the corresponding mechanism in other Gram-negative bacteria such as cyanobacteria remain to be established. Based on their photosynthet-ic activity, cyanobacteria are known to exhibit a special metal demand in comparison to other bacteria. Here, the regulation by cobalt and cobalamin as well as their uptake is described for Anabaena sp. PCC 7120, a model filamen-tous heterocyst-forming cyanobacterium. Anabaena contains at least three cobalamin riboswitches in its genome, for one of which the functionality is confirmed here. Moreover, two outer membrane-localized cobalamin TonB-dependent transporters, namely BtuB1 and BtuB2, were identified. BtuB2 is important for fast uptake of cobalamin under conditions with low external cobalt, whereas BtuB1 appears to function in cobalamin uptake under condi-tions of sufficient cobalt supply. While the general function is comparable, the specific function of the two genes differs and mutants thereof show distinct phenotypes. The uptake of cobalamin depends further on the TonB and a BtuFCD machinery, as mutants of tonB3 and btuD show reduced cobalamin uptake rates. Thus, our results provide novel information on the uptake of cobalamin and the regulation of the cellular cobalt content in cyanobacteria.