bluuebunny/crossref_metadata_2025 huggingface dataset:
FARKLI GÖZENEKLİLİK VE AÇI DEĞERLERİNE SAHİP GEÇİRGEN AYIRICI PLAKA İLE DAİRESEL BİR SİLİNDİRİN AKIŞ KONTROLÜ
Authors: Şahin Serdar , Durhasan Tahir , Pınar Engin , Akıllı Hüseyin
Published: June 2024

Titreşim ve akustik gürültü veya rezonans gibi iz akışının olumsuz etkilerini ortadan kaldırmak için batık gövdelerin akış kontrolü kapsamlı bir şekilde incelenmiştir. Isı eşanjör boruları, enerji nakil hatları, egzoz bacaları, köprüler, radyo teleskoplar, enerji hatları, açık deniz sondaj kuleleri vb. birçok mühendislik uygulamalarında kullanılan, silindir gövdenin iz akışını kontrol etmek için çeşitli art iz konumuna geçirgen bir ayırıcı plaka yerleştirilmiştir. Tüm deneyler, Çukurova Üniversitesi Akışkanlar Mekaniği Laboratuvarı'ndaki büyük ölçekli bir kapalı devre su kanalında, PIV kullanılarak, silindir çapına (D) bağlı olarak Re=5000'de gerçekleştirilmiştir. Dört farklı ayırıcı plaka açısı (θ =0°; 15°; 30°; 45°), üç farklı gözeneklilik (ε=0.30; 0.50; 0.70) incelenmiştir. Ayırıcı plakaların geçirgenliği (ε) plaka üzerindeki toplam delik alanının, plaka toplam alanına oranı olarak belirlenmiştir. Tüm değişkenler silindir çapına (D) bölünerek boyutsuzlaştırılmış ve * indisi ile gösterilmiştir. Ayırıcı plaka uzunluğu da deney sırasında ls*=1 olarak sabit tutulmuştur. Ayırıcı plaka ile silindir arasındaki mesafe, ayırıcı plakanın art iz eksenine göre açısı değişken olduğundan sabit değildir. Bunun üstesinden gelebilmek için silindir ile ayırıcı plaka dönme ekseni arasındaki mesafe ele alınmış ve ** indisi ile gösterilmiştir. Ayırıcı plaka orta noktası ile silindir (lg**) arasındaki boşluk, deneyler boyunca lg**=1.5 olarak sabit tutulmuştur. Plakalar döndürüldüğünde akışa paralel kesit azalmakta, bu da sınır tabakalar arasındaki etkileşimi artırmaktadır. Geçirgen ayırıcı plakalar, silindir etrafındaki akışta oluşan sınır tabakaların etkileşimini engellediğinden, sınır katmanların etkileşiminin arttığı ardıl bölgelerde geçirgen ayırıcı plakaların etkisi artmaktadır. Böylece dalgalanmalar azalmakta ve silindirin akış aşağısında daha kararlı bir iz akışı oluşmaktadır. Ayırıcı plaka açısının artmasıyla çevrinti oluşumunun geciktiği gözlenmiştir. Bu çalışmada ayırıcı plaka açısının etkisi ve plaka geçirgenliğinin etkisi net bir şekilde gözlemlenmiştir.
EXPERIMENTAL STUDY OF DELAYING THE STALL OF THE NACA 0020 AIRFOIL USING A SYNTHETIC JET ACTUATOR ARRAY WITH DIFFERENT ORIFICE GEOMETRIES
Authors: Türen Esra , Yavuz Hakan
Published: June 2024

An experimental study on the effect of active flow control using a synthetic jet mechanism on stall delay for the NACA 0020 airfoil is conducted. The experiments are carried out at an open-suction type wind tunnel at Reynolds number 5x104. In the presented experimental study, aerodynamic force measurements of the airfoil with having different orifice geometries (cylindrical, rectangular, sinusoidal, v-type, inclined rectangular) are examined by using a speaker type actuator in synthetic jet mechanism. It is observed that all different orifice geometries are effective in delaying the stall angle of NACA 0020 airfoil. However, it is observed that the inclined rectangular type of synthetic jet geometry is the most advantageous in delaying the stall of the airfoil. The effects of geometric parameters of the actuator on lift and drag coefficient of the NACA0020 airfoil are investigated. Experimental results show that among the all-orifice geometries the rectangular orifice geometry is the most effective in increasing lift coefficient of the airfoil. It is observed that there is a maximum decrease in drag at 10⁰ where the stall occurs. In addition, the decrease in drag is observed after 10 in rectangular, v-type and inclined rectangular orifice geometries.
EXPLORING THE IMPACT OF GEOMETRIC PARAMETERS ON HEAT TRANSFER AND FLUID FLOW CHARACTERISTICS IN CROSS-TRIANGULAR GROOVED CHANNELS: A COMPUTATIONAL STUDY
Authors: Alnak Yeliz
Published: June 2024

In this study, the impact of geometric parameters of rectangular baffles with varying location angles and heights is investigated on the heat transfer and fluid flow characteristics of cross-triangular grooved channels. Computational methods are employed to explore these effects, utilizing the Ansys-Fluent program to solve the Navier-Stokes and energy equations, incorporating the k-ε turbulence model for numerical simulations. The inlet temperature of the air, serving as the working fluid, is set at 293 K, while the wall surface temperature of the lower triangular grooved channel remains fixed at 373 K. Rectangular baffles are tested with angles of 30°, 60°, and 90°, and heights of 0.25H, 0.5H, and 0.75H, respectively. The numerical results show good agreement with a 3.53% deviation compared to existing empirical data in the literature. The obtained findings are presented in terms of mean Nusselt (Num) number, fluid temperature, and Performance Evaluation Criterion (PEC) number variations taking into consideration of pressure drop for each rectangular baffle angle and height. Additionally, contour distributions of temperature and velocity are evaluated for different Reynolds numbers (Re) and arrangements of rectangular baffles. It has been determined that the Nu number value increases by 197.56% at a 90° angle and 0.75H height, compared to the 0.25H baffle height at Re=6000. Furthermore, at Re=1000, the PEC number is 84.50% higher with a baffle height of 0.25H and a baffle angle of 30° compared to the condition with a 90° angle.
ISI KÖPRÜLERİNDE HİGROTERMAL PERFORMANSIN VE ISI KAYIPLARININ İNCELENMESİ
Authors: Umaroğulları Filiz , Mıhlayanlar Esma , Seyit Melek
Published: June 2024

Enerji verimliliğinde önemli bir potansiyele sahip olan binalarda enerji kaybının en büyük kısmı bina kabuğundan gerçekleşmektedir. Günümüzde; farklı kalınlık ve özellikteki çeşitli katmanlardan oluşan bina kabuğunda, ısı kaybının azaltılmasında, ısı köprülerinden kaçınmaya yönelik uygulamalar en temel yaklaşımlardan biridir. Diğer bileşenlere oranla ısı iletiminin daha fazla olduğu ve nem problemlerinin öncelikle karşılaşıldığı alanlar olan ısı köprülerinin bina enerji performansının değerlendirilmesinde önemi büyüktür. Günümüzde yaygın olarak uygulanan betonarme karkas yapım sisteminde çeşitli nedenlerle çok sayıda ısı köprüsü meydana gelmektedir. Köşe noktalarında meydana gelen ısı köprüleri binanın ortalama ısı geçirgenliğini önemli ölçüde etkiler. Aynı zamanda yoğuşma ve küf oluşumunun da yaygın görüldüğü bölgelerdir. Bu bölgelerin yalıtım durumu da ısıl ve higrotermal performansı etkilemektedir. Tasarım aşamasında bina kabuğunun higrotermal performansı hesaplanarak gerekli önlemler alınmalıdır. Bu amaçla çeşitli benzetim araçları kullanılmaktadır. Böylece tasarım aşamasında bina kabuğunun enerji, konfor ve sağlık koşullarını sağlaması mümkün olabilecektir. Bu çalışmada ısı köprülerindeki ısı kayıpları ve higrotermal performans araştırılmıştır. Mevcut bir konut yapısının köşe noktasında meydana gelen ısı köprüleri, yalıtımsız, kısmi yalıtımlı ve dışardan yalıtımlı olma durumlarına göre değerlendirilmiştir. Çalışma kapsamında Quick Field 6.3 ve Wufi 2D-4.3 programları aracılığıyla yapılan analizlerden ısı köprülerinin kısmi yalıtılması durumunda kesintisiz dışarıdan yalıtımlı olma durumuna göre %37 daha fazla ısı kaybı meydana geldiği görülmüştür. Aynı zamanda higrotermal performans açısından da kesintisiz dışardan yalıtımlı durumda yoğuşma riski görülmemektedir.
Sahîh Kırâatlerin Tercihinde Şiir ile İstişhâd Yönteminin Bir Tahlili
Authors: Çelik Cihat , Yaşar Hüseyin
Published: June 2024

Bu makalede, Sahîh kırâatlerin değerlendirilmesinde şiir ile istişhâd yöntemi ele alınacaktır. Kur’ân kelimelerinin farklı okuyuş şekillerini ele alan kıraat ilmi Kur’ân’ın anlaşılması açısından büyük önem taşımaktadır. Âlimler âyetlerden çeşitli anlamların ve delillerin tespiti yoluna giderken kimi zaman kırâat farklılıklarından yararlanmışlardır. Bu bağlamda kırâat ilminin diğer ilimler ile olan ilişkisi çok fazladır. Kur’ân’ın Arapça indirilmesi sebebi ile de kırâat ilmi Arap dili belagatı ve tefsir ilmi ile doğrudan ilişkilidir. Müfessirler ve dilbilimciler eserlerinde kırâat farklılıklarını değerlendirirken çeşitli yöntemler kullanmışlardır. Bu yöntemlerden bir tanesi de kırâatlerin şiir ile istişhâdıdır. Kırâat ilmi literatürüne bakıldığında kırâat-şiir ilişkisi üzerine yapılan müstakil bir çalışma bulunmamaktadır. Bu çalışmada tefsir ve dilbilimcilerin eserlerinde sahîh kıraâtleri değerlendirirken kullanmış oldukları şiir ile istişhâd yönteminin olumlu olumsuz yönlerini ortaya koymayı hedeflemektedir. Yine bu müelliflerin eserlerinde sahîh kırâatleri şiir ile açıklama yöntemleri de tespit edilmeye çalışılacaktır. Daha sonra bu tespitler üzerine şiir ile istişhâdın kırâat ilmi açısından ne derece kabul gördüğüne dair açıklamalara yer verilecektir. Bu makalenin kırâat-şiir ilişkisi üzerine yapılacak olan sonraki çalışmalara da katkı sağlayacağı düşünülmektedir.
Factors Affecting Stock Price and Firm Value as Intervening Variable: The Case of Consumer Sector Firm-Listed at Indonesian Stock Exchange
Authors: Amanda Widya Ayu , Fatimah Fatimah , Chairiyah Choriyah
Published: June 2024

The object of this research is primary consumer sector companies registered on the IDX, where the data is in the form of financial reports for the 2019-2023 period. The research method that is appropriate for this research is associative research because the author wants to know the influence of the Current Ratio, debt-to-asset ratio, and Net Profit Margin variables on stock prices with company value as an intervening variable. In this research, the operational variable is the stock price. (Z) as the dependent variable, company value (Y) as the intervening variable, while the independent variables are Current Ratio (X1), Debt to Asset Ratio (X2), and Net Profit Margin (X3). The indicators for share prices are closing prices; company value is price to book value; current ratio is current assets and current liabilities; debt to asset ratio is total debt and total assets; net profit is profit after taxes and sales. Based on the criteria for determining the sample size, 59 primary consumer sector companies meet these criteria.  The following conclusions can be obtained: 1. The Current Ratio and net profit margin have a negative and insignificant effect on company value; 2. The Debt-to-Asset Ratio positively and significantly affects company value; 3. Net Profit Margin has a negative and insignificant effect on company value; 4. The Current Ratio has a positive but insignificant effect on share prices; 5. The Debt-to-Asset Ratio negatively and significantly affects share prices; 6. Net Profit Margin has a negative and insignificant effect on share prices, 7. Company value has a positive and significant effect on share prices
CONHECIMENTO CIENTÍFICO SOBRE O CUIDADO DE PACIENTES COM FISSURA LABIOPALATINA E FENDA LABIAL NA ODONTOLOGIA, NO PRIMEIRO NÍVEL DE ATENÇÃO À SAÚDE: REVISÃO DE ESCOPO
Authors: Braga Scarpa Josiane , Mazzo Alessandra
Published: June 2024

Objetivo: Mapear evidências científicas sobre o conhecimento científico sobre o cuidado de pacientes com fissura labiopalatina e fenda labial na odontologia, no Primeiro Nível de Atenção à Saúde. Método: Trata-se de uma revisão de escopo, seguindo a proposta do Joanna Briggs Institute, realizadas nas seguintes bases de dados National Library of Medicine (PubMed/MEDLINE), Scopus, Web of Science, Scientific Electronic Library Online (SciELO) e Biblioteca Virtual em Saúde. Para a busca estabeleceu-se a pergunta de pesquisa: “Como tem sido cuidado o paciente com fissura labiopalatina e fenda labial na odontologia, no primeiro nível de atenção à saúde?”. Entre os 242 estudos encontrados, quatro foram incluídos na amostra por responderem à pergunta de pesquisa. Incluiu-se ainda um estudo da literatura cinza. Esta Revisão foi registrada na plataforma Open Science Framework (OSF) sob o número: DOI 10.17605/OSF.IO/4KWDP. Resultados: A amostra foi composta por quatro estudos que demonstram que a odontologia na atenção primária destinada aos pacientes com fissuras labiopalatinas está relacionada aos aspectos preventivos e de promoção da saúde ao tratamento e acompanhamento dos pacientes junto a outros especialistas da atenção secundária e terciária (ortodontistas, cirurgiões e demais equipes da área da saúde). Conclusão: São escassos os estudos que tratam do atendimento odontológico de pacientes com fissura labiopalatina e fenda labial na atenção primária. Todavia, os resultados demonstram a relevância desta especialidade na promoção, prevenção e tratamento destes pacientes, além do seu acompanhamento junto a outros profissionais.
Thematic Analysis and Poetic Inquiry of Educators' Meaning-Making and Sense-Making of Social Justice
Authors: Iyer Ishwarya Narayanan , Ramachandran Sridhar
Published: June 2024

This paper presents a qualitative study that explores how educators in higher education construct their meaning of social justice. The data consists of transcripts of personal stories shared by three subjects in a public panel discussion. The data analysis employs two complementary methods: thematic analysis and poetic inquiry and analysis. The thematic analysis identifies two main themes: reflection from life events and heightened self-awareness, which illustrate how the subjects' life experiences and perceptions have shaped their understanding of social justice. The poetic inquiry and analysis transform the subjects' voices into narrative and lyrical poems that evoke the emotional and experiential aspects of their stories. The paper explores the consequences of the findings for campus programming and social justice education. This paper also reflects on the benefits and challenges of using thematic analysis and poetic inquiry as qualitative research methods.The dual approach illuminates the complexities of social justice in education, contributing to a more holistic understanding.
 
 
Received: 3 April 2024 | Revised: 8 May 2024 | Accepted: 29 May 2024 
 
Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.
 
Data Availability Statement
Data sharing is not applicable to this article as no new data were created or analyzed in this study.
 
Author Contribution Statement
Ishwarya Narayanan Iyer: Conceptualization, Methodology, Software, Validation, Formal analysis, Investigation, Resources, Data Curation, Writing - original draft, Writing - review & editing, Visualization, Supervision, Project administration, Funding acquisition; Sridhar Ramachandran: Conceptualization, Methodology, Software, Validation, Formal analysis, Investigation, Resources, Data Curation, Writing - original draft, Writing - review & editing, Visualization, Supervision, Project administration, Funding acquisition.
The Impact of Urban Green Spaces on Community Health and Well-being
Authors: Wang’ombe George
Published: June 2024

Purpose: This study sought to investigate the impact of urban green spaces on community health and well- being.
Methodology: The study adopted a desktop research methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library.
Findings: The findings reveal that there exists a contextual and methodological gap relating to the impact of urban green spaces on community health and well- being. Preliminary empirical review revealed that urban green spaces played a crucial role in enhancing the health and well-being of urban communities. Through a comprehensive review of literature and empirical evidence, the study found that green spaces positively influenced physical, mental, and social well-being. Access to green spaces was associated with increased physical activity levels, improved mental health outcomes, and enhanced social cohesion among residents. These findings underscored the importance of prioritizing investments in green infrastructure and ensuring equitable access to green spaces for all urban residents to promote healthier and more sustainable cities.
Unique Contribution to Theory, Practice and Policy: Biophilia Theory, Attention Restoration Theory and Social Determinants of Health Theory may be used to anchor future studies on the impact of urban green spaces on community health and well- being. The study offered offered valuable recommendations that contributed to theory, practice, and policy. It provided empirical evidence supporting theories like Biophilia and Attention Restoration, advocating for the integration of green spaces into urban environments. The recommendations emphasized equitable access to high-quality green infrastructure, community engagement in planning processes, interdisciplinary collaboration, and continued research and monitoring efforts. These recommendations aimed to inform evidence-based decision-making, promote community health and well-being, and create sustainable and resilient urban environments.
Utilizing Digital Transformation Technology at Construction Sites to Mitigate Workplace Incidents and Enhance Safety Practices within the Construction Sector
Authors: Pravin Tathod  , Deepak Pyasi
Published: June 2024

The Objectives of this project work is to look into the DT digital transformation of the construction sector, more specifically to the impacts of AI for workers and work-environment safety. The scope converges on the more tangible consequences of safety rather than health and focuses on the impact on safety roles and performance as well as implications for jobs and collaborative dynamics between construction organizations. The thesis pushes forward the current state of safety performance and collaborative relationships both in theory as much as in practice and stresses the shift of performance measurements and success factors for the former as well as the roles and goals for the latter. The construction sector is a considerable contributor to a country's economy. For example, there are more than 300 000 people employed in the construction sector in INDIA. Unfortunately, workers’ safety is a big problem in this high-employment sector since the potential risk for injury is high. In INDIA workers in the construction industry are among the most injured, both in terms of work-related accidents and occupational injuries. With more technology advances, there has been an increasing interest in the construction sector regarding new technologies in recent years which also includes occupational safety and health technologies. The results provide a list of different types of safety technologies that have been investigated previously and a versatile overview of safety technology's development process, adoption process, and facilitators and barriers for a successful adoption. This study points out the benefits of utilizing safety technologies and provides extensive information regarding the adoption of safety tools that could encourage engaged actors in the field to strive for more safety technologies which could lead to a safer work environment and healthy worker
Cruces y límites entre la información sobre sostenibilidad de las empresas y el secreto empresarial
Authors: Candelario Macías María Isabel
Published: June 2024

En este trabajo se examinan dos instituciones y su conexión, como son, de un lado, el secreto empresarial como muestra de la innovación, investigación y desarrollo de una empresa. A tal efecto, se analiza desde su concepto y reconocimiento legal hasta los procedimientos y requisitos a observar para ser apreciado como secreto empresarial. De otro lado, se esboza la Directiva CSRD destinada a impulsar el informe de sostenibilidad que tienen que proporcionar determinadas empresas en orden a ayudar a la transición ecológica-sostenible y adoptar decisiones de inversión o mitigar los efectos derivados del cambio climático, ajustándose a los compromisos adquiridos en diferentes ámbitos de actuación. Delimitadas y planteadas ambas instituciones para comprender el alcance de cada una de ellas, se agrega un plus, y se pondera cómo pueden interrelacionarse, en particular, al demandar la Directiva CSRD en los informes sobre sostenibilidad de las empresas la divulgación de información sobre los recursos inmateriales distintos de los reconocidos en el balance. De aquí surgen varios interrogantes sobre los posibles conflictos de interacción entre ambos, y es lo que se ha puesto de manifiesto e interpretado de acuerdo con la legislación tanto europea como nacional, en orden a proporcionar claridad y poner de relieve los límites de esta problemática en el futuro más inmediato.
Analisis Kemampuan Metakognisi Siswa dalam Pemecahan Masalah Matematika Berbasis Etnomatematika Uma Lengge
Authors: Nurhayati Nurhayati , Kusaeri Al
Published: June 2024

Penelitian ini bertujuan untuk menganalisis kemampuan metakognisi siswa dalam pemecahan masalah matematika berbasis etnomatematika uma lengge. Penelitiaan ini memberikan implikasi bagi pendidik untuk memperhatikan pengembangan metakognisi siswa melalui pendekatan pembelajaran yang mengintegrasikan budaya lokal. etnomatematika sangat penting dalam meningkatkan kualitas pembelajaran matematika dan meningkatkan kemampuan siswa. Dengan menggunakan pendekatan etnomatematika, siswa dapat lebih terlibat dan termotivasi dalam belajar matematika, serta dapat memperkaya pengetahuan mereka tentang kekayaan budaya yang dimiliki oleh masyarakat setempat tempat tinggal mereka. Metakognisi merupakan kesadaran terhadap proses berpikir yang meliputi perencanaan, pemantauan dan evaluasi dalam memecahkan masalah matematika. Etnomatematika yang mengaitkan konsep matematika dengan budaya, diaplikasikan dalam konteks rumah adat bima uma lengge. metode deskriptif kualitatif digunakan dalam penelitian ini dengan melimatkan melibatkan 3 subjek yang memiliki kemampuan metakognisi tinggi, sedang, dan rendah. Data dikumpul melalui tes, wawancara disertai dengan observasi dan dokumentasi Observasi dan dokumentasi. Selanjutnya, kami mengunkan triangulasi teknik untuk memastikan keabsahan data yang diperoleh. Hasil penelitian menunjukkan bahwa: (1) variansi kemampuan metakognisi tinggi mampu menyelesaikan rumus dengan baik, melaui tahapan perencanaan, pemantauan dan evaluasi yang efektif. (2) siswa dengan kemampuan metakognisi sedang mampu melakukan perencanaan dan pemantauan, tetapi masih mengalami kesalahan mengaplikasi rumus dan perhitungan aktif. (3) Siswa dengan kemampuan metakognisi rendah tidak mampu menggunakan kemampuan keterampilan metakognisi secara efektif, terlihat dari ketidak mampuan mereka dalam merencanakan dan memantau proses penyelesaiaan masalah dengan baik. Penelitian ini menegaskan pentingnya kemampuan metekognisi dalam pemecahan masalah matematika dan menunjukan bahwa siswa yang dapat memanfaatkan metakognisinya dengan baik cenderung lebih berhasil dalam menyelesaikan masalah.
Morphological Examination of the Larval Development in Tigris Kingfish, Cyprinion macrostomus Heckel, 1843
Authors: Çelik İhsan , Çelik Pınar
Published: June 2024

This study presents a comprehensive morphological examination of the larval development stages and growth rates of Cyprinion macrostomus. C. macrostomus broodstock have been collected from their natural habitats in Kangal, Sivas, Türkiye, and taken into cultivation under laboratory conditions. The research meticulously observed the early developmental stages, feeding behaviors, and growth rates of the larvae. Findings indicate significant morphological changes during the transformation of larvae into juvenile fish, with morphological metamorphosis completed by day 25. The average length of the larvae reached 14.78 mm by the end of day 25. This study provides fundamental information for the cultivation and conservation of C. macrostomus, identifying necessary conditions for optimizing larval growth and development processes. Moreover, this research contributes to the development of strategies for the sustainable management and conservation of C. macrostomus, offering a foundation for future studies to build upon for the species’ conservation and successful aquaculture cultivation.
Aerosol-induced closure of marine cloud cells: enhanced effects in the presence of precipitation
Authors: Christensen Matthew W. , Wu Peng , Varble Adam C. , Xiao Heng , Fast Jerome D.
Published: June 2024

Abstract. The Weather Research Forecasting (WRF) version 4.3 model is configured within a Lagrangian framework to quantify the impact of aerosols on evolving cloud fields. Kilometer-scale simulations utilizing meteorological boundary conditions are based on 10 case study days offering diverse meteorology during the Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA). Measurements from aircraft, the ground-based Atmosphere Radiation Measurement (ARM) site at Graciosa Island in the Azores, and A-Train and geostationary satellites are utilized for validation, demonstrating good agreement with the WRF-simulated cloud and aerosol properties. Higher aerosol concentration leads to suppressed drizzle and increased cloud water content in all case study days. These changes lead to larger radiative cooling rates at cloud top, enhanced vertical velocity variance, and increased vertical and horizontal wind speed near the base of the lower-tropospheric inversion. As a result, marine cloud cell area expands, narrowing the gap between shallow clouds and increasing cloud optical thickness, liquid water content, and the top-of-atmosphere outgoing shortwave flux. While similar aerosol effects are observed in lightly to non-raining clouds, they tend to be smaller by comparison. These simulations show a relationship between cloud cell area expansion and the radiative adjustments caused by liquid water path and cloud fraction changes. The adjustments are positive and scale as 74 % and 51 %, respectively, relative to the Twomey effect. While higher-resolution large-eddy simulations may provide improved representation of cloud-top mixing processes, these results emphasize the importance of addressing mesoscale cloud-state transitions in the quantification of aerosol radiative forcing that cannot be attained from traditional climate models.
Multiple thermal Atlantic Meridional Overturning Circulation thresholds in the intermediate complexity model Bern3D
Authors: Adloff Markus , Pöppelmeier Frerk , Jeltsch-Thömmes Aurich , Stocker Thomas F. , Joos Fortunat
Published: June 2024

Abstract. Variations in the Atlantic Meridional Overturning Circulation (AMOC) are associated with Northern Hemispheric and global climate shifts. Thermal thresholds of the AMOC have been found in a hierarchy of numerical circulation models, and there is an increasing body of evidence for the existence of highly sensitive AMOC modes where small perturbations can cause disproportionately large circulation and hence climatic changes. We discovered such thresholds in simulations with the intermediate-complexity Earth system model Bern3D, which is highly computationally efficient, allowing for studying this non-linear behaviour systematically over entire glacial cycles. By simulating the AMOC under different magnitudes of orbitally paced changes in radiative forcing over the last 788 000 years, we show that up to three thermal thresholds are crossed during glacial cycles in Bern3D and that thermal forcing could have destabilised the AMOC repeatedly. We present the circulation and sea ice patterns that characterise the stable circulation modes between which this model oscillates during a glacial cycle and assess how often and when thermal forcing could have preconditioned the Bern3D AMOC for abrupt shifts over the last 788 kyr.
On the Estimation of Global Plant Water Requirement
Authors: Wang Yunfei , Zeng Yijian , Song Zengjing , Yu Danyang , Han Qianqian , Tang Enting , de Bruin Henk , Su Zhongbo
Published: June 2024

Abstract. Water supply is the most critical constraint for vegetation growth and food security. The amount of water demand by plant growth is usually estimated by plant water requirement which unfortunately cannot be directly measured at any large scale in field conditions. Different estimation methods have been proposed in the past seven decades for estimating plant water requirements using the concept of reference evapotranspiration (ET0) methods or potential evapotranspiration (PET) methods. In addition, using PET or ET0 to estimate actual evapotranspiration (ETa) is a critical approach in hydrological and climate models. However, different PET or ET0 models provide diverse results for irrigation water requirement (IWR) that in turn may result in a huge waste of irrigation water. Here, we assess the suitability of six common methods for estimating PET at 170 eddy covariance flux sites and propose a practical approach for estimating the IWR using a physically consistent model STEMMUS-SCOPE. Notably, the Priestley-Taylor and LSA_SAF method excels in providing reasonable approximations of daily PET. Consequently, in scenarios where net radiation data and ground heat flux are accessible, the Priestley-Taypor method emerges as the recommended choice. The LSA_SAF method is the better one when only net radiation data is available. Alternatively, in cases where only global radiation data is available, the Makkink and Hargreaves methods serve as viable substitutes. Although the FAO56 Penman-Monteith method is much better than the original Penman-Monteith method when wind speed and air humidity data are at hand, its suitability falls short of the preferred status. This study contributes to understanding and quantifying the applicability of different methods in estimating PET and IWR, based on input data availability and physical considerations.
A Fortran-Python Interface for Integrating Machine Learning Parameterization into Earth System Models
Authors: Zhang Tao , Morcrette Cyril , Zhang Meng , Lin Wuyin , Xie Shaocheng , Liu Ye , Van Weverberg Kwinten , Rodrigues Joana
Published: June 2024

Abstract. Parameterizations in Earth System Models (ESMs) are subject to biases and uncertainties arising from subjective empirical assumptions and incomplete understanding of the underlying physical processes. Recently, the growing representational capability of machine learning (ML) in solving complex problems has spawned immense interests in climate science applications. Specifically, ML-based parameterizations have been developed to represent convection, radiation and microphysics processes in ESMs by learning from observations or high-resolution simulations, which have the potential to improve the accuracies and alleviate the uncertainties. Previous works have developed some surrogate models for these processes using ML. These surrogate models need to be coupled with the dynamical core of ESMs to investigate the effectiveness and their performance in a coupled system. In this study, we present a novel Fortran-Python interface designed to seamlessly integrate ML parameterizations into ESMs. This interface showcases high versatility by supporting popular ML frameworks like PyTorch, TensorFlow, and Scikit-learn. We demonstrate the interface's modularity and reusability through two cases: a ML trigger function for convection parameterization and a ML wildfire model. We conduct a comprehensive evaluation of memory usage and computational overhead resulting from the integration of Python codes into the Fortran ESMs. By leveraging this flexible interface, ML parameterizations can be effectively developed, tested, and integrated into ESMs.
Influence of Storm Type on Compound Flood Hazard of a Mid-Latitude Coastal-Urban Environment
Authors: Chen Ziyu , Orton Philip , Booth James , Wahl Thomas , DeGaetano Arthur , Kaatz Joel , Horton Radley
Published: June 2024

Abstract. A common feature within coastal cities is small, urbanized watersheds where the time of concentration is short, leading to vulnerability to flash flooding during coastal storms that can also cause storm surge. While many recent studies have provided evidence of dependency in these two flood drivers for many coastal areas worldwide, few studies have investigated their co-occurrence locally in detail, nor the storm types that are involved. Here we present a bivariate statistical analysis framework with historical rainfall and storm surge and tropical cyclone (TC) and extratropical cyclone (ETC) track data, using New York City (NYC) as a midlatitude demonstration site where these storm types play different roles. In contrast to prior studies that focused on daily or longer durations of rain, we apply hourly data and study simultaneous drivers and lags between them. We quantify characteristics of compound flood drivers including their dependency, magnitude, lag time and joint return periods, separately for TCs, ETCs, non-cyclone associated events, and merged data from all events. We find TCs have markedly different driver characteristics from other storm types and dominate the joint probabilities of the most extreme rain-surge compound events, even though they occur much less frequently. ETCs are the predominant source of more frequent, moderate compound events. The hourly data also reveal subtle but important spatial differences in lag times between the joint flood drivers. For Manhattan and southern shores of NYC during top-ranked TC rain events, rain intensity has a strong negative correlation with lag time to peak surge, promoting pluvial-coastal compound flooding. However, for the Bronx River in northern NYC, fluvial-coastal compounding is favoured due to a 2–6 hour lag from the time of peak rain to peak surge.
Relato de experiência: realidade aumentada como ferramenta à dialogicidade da escrita criativa em sala de aula
Authors: Maia Bianca de Lima , Brandt Artur Antônio Melo de Lira
Published: June 2024

O presente artigo tem por objetivo apresentar a metodologia ativa aliada à tecnologia da realidade aumentada na abordagem da escrita criativa em sala de aula. A pesquisa é de abordagem qualitativa, com visão interpretativa e crítica das obras analisadas. A utilização da metodologia ativa aliada à realidade aumentada foi organizada respeitando o contexto educacional e as necessidades de 35 alunos do 5º ano de escolaridade. Um dos objetivos foi incentivar a participação ativa dos alunos no processo de aprendizagem, visto que o método ativo foi utilizado como uma ferramenta para envolver os alunos, permitindo que eles explorassem, interagissem e criassem conteúdo. Autores como Assunção (2020) e Moran (2015) enfatizam que as metodologias ativas priorizam o envolvimento dos alunos na construção do conhecimento, em contraste com os métodos tradicionais de ensino, nos quais o professor desempenha um papel central. Os resultados apontam que, através da realidade aumentada, é possível estimular o pensamento crítico e criativo, oferecendo oportunidades para os alunos desenvolverem habilidades de pensamento reflexivo e criativo.
Implementasi Pemanfaatan Sistem Informasi Peramalan Kebutuhan Suku Cadang Kendaraan Berbasis Web
Authors: Suroso Finna , Rahmah Gita Mustika , Utami Mailia Putri
Published: June 2024

Workshops that are newly established often lack adequate system conditions for their business processes, and this is no exception for the common issue of inventory management. The problem typically faced is that the spare parts inventory process does not utilize an information system capable of predicting the needs of spare parts stock. This leads to unavailability of spare parts when there is demand and results in overstock of unused spare parts in the workshop.This community service report aims to implement the utilization of an information system that can forecast the need for automotive spare parts stock for the following month, preventing shortages or overstock. This, in turn, facilitates the front desk in managing spare parts data, checking stock levels, minimizing errors in spare parts orders, and completing tasks efficiently.The information system will be beneficial for the workshop to forecast the spare parts needed for future stocking, avoiding shortages or excess inventory. The user-friendly interface of this information system ensures that the workshop staff can easily comprehend and use it..
Keywords: Forecasting; requirements; spare part; workshops
Bengkel Kendaraan yang baru merintis biasanya belum memiliki kondisi perangkat sistem yang memadai untuk proses bisnisnya tidak terkecuali permasalahan yang sering dihadapai yaitu proses persediaan suku cadang belum menggunakan sistem informasi yang dapat meramalkan kebutuhan stok persediaan suku cadang, sehingga menyebabkan ketidaktersediaan suku cadang pada saat ada permintaan dan menyebabkan overstock suku cadang yang tidak digunakan pada bengkel. Laporan pengabdian masyarakat ini bertujuan untuk implementasi pemanfaatan sebuah sistem informasi yang dapat meramalkan kebutuhan stok suku cadang mobil pada bulan berikutnya sehingga tidak terjadi kekurangan atau overstock suku cadang sehingga mempermudah front desk dalam melakukan pendataan suku cadang, melihat stok suku cadang, meminimalisir terjadinya kesalahan order suku cadang dan dapat menyelesaikan pekerjaan dengan efisien. Sistem Informasi ini akan berguna bagi bengkel untuk meramalkan kebutuhan suku cadang yang akan mereka stok kedepanya agar tidak terjadi kekurangan atau kelebihan suku cadang. Sistem informasi ini mempunyai user interface yang mudah digunakan sehingga bengkel akan lebih mengerti.
Kata kunci: Peramalan; kebutuhan; Suku Cadang; Bengkel
Introduction : Le symbolisme phonétique à l'âge de l'oralité numérique. Une perspective sur le langage par delà 'nature' et 'culture'
Authors:   UBFC - Université de Bourgogne et Franche-Comté / CPTC - Centre Pluridisciplinaire Textes et Cultures (EA 4178), Nobile Luca
Published: June 2024

After recalling the main empirical evidence in favour of sound symbolism, this Introduction presents the contributions offered by the authors of this issue of Signifiances (Signifying). It then addresses some of the epistemological and metaphysical issues that a full integration of sound symbolism into language theory entails, particularly concerning the relationship between language and reality, and between nature and culture. Finally, it proposes to explain the centuries-old preference of scholars for the arbitrariness of the sign as an effect of the pre-eminent role that writing on paper has played in their pragmatic-cognitive experience of language up to the digital revolution.
Approche cognitive diachronique de l’émergence du phonesthème fl- : réanalyse phonosymbolique et transmodalité dans le lexique anglais (OED)
Authors:   Université de Caen, France - CRISCO (EA 4255), Smith Chris
Published: June 2024

La phonosymbolique ou symbolisme phonique, principe d’iconicité fondée sur une association motivée entre forme (phonique) et sens, est un vaste sujet d’étude regroupant de multiples perspectives, notamment la psycholinguistique et la cognition. Toutefois, en linguistique traditionnelle, ce sujet reste relativement délaissé par les grands courants linguistiques, hormis la linguistique statistique et computationnelle (Hutchins 1998, Drellishak 2006, Otis & Sagi 2008, Sagi et al 2009, etc.). Dans la mesure où la phonosymbolique ne fonctionne pas à un niveau sémantico-syntaxique, son traitement nécessite une approche cognitive ou du moins conceptuelle.
Matérialité et développement des formes sémiotiques : de l’hyperobjet à la niche
Authors:   CeReS – Centre de Recherches Sémiotiques, Université de Limoges, France, De Luca Valeria
Published: June 2024

Dans cette contribution, nous souhaitons mettre en relief le rôle joué par la matérialité dans la constitution des formes sémiotiques. La notion de matérialité dépasse les aspects relatifs à la constitution de la face signifiante des signes pris isolément, et oriente l’attention vers l’agentivité des matériaux à l’œuvre dans tout type d’interaction symbolique. Ainsi, la réflexion sur les formes sémiotiques inclut d’autres processus et « objets » sémiotiques, allant du vivant jusqu’aux sémioses anthropiques. Dans ce cadre, nous nous attarderons sur la relation entre d’un côté, la notion d’« hyperobjet », élaborée par le philosophe Timothy Morton dans l’enceinte du matérialisme et du réalisme spéculatif à visée écologique, et de l’autre, celle de « construction de niche », attestée dans les recherches en anthropologie évolutionniste et en biosémiotique.
TFA Mediated Ring-Opening for Evodiamine to Prepare Novel Tryptamine Derivatives
Authors: Hongzhuo Wei Hongzhuo Wei , XH Wang XH Wang , Weihang Guo Weihang Guo , Y H Wang and C K Zhao Y H Wang and C K Zhao
Published: June 2024

A convenient feasible protocol was developed for the preparation of novel tryptamine derivatives from evodiamine. After the general alkylation in N-13 and followed by the treatment of TFA in chloroform, a series of tryptamine derivatives 4a-i were successfully synthesized in a good yield, which were immediately cyclized to form alcohol 5 in the condition of NaOH/methanol.
Analysis of the Quality of Life of Patients with Morbid Obesity after Mini-Gastric Bypass
Authors:   Euromed Multidisciplinary Center for Modern Medicine LLC, Kalinichenko Anatoliy A. , Klimashevich Alexandr V. ,   A.S. Loginov Moscow Clinical Scientific Center, Feoktistov Yaroslav E. ,   A.S. Loginov Moscow Clinical Scientific Center, Vasiliev Alexandr P. ,   A.I. Evdokimov Moscow State University Medicine and Dentristry of the Ministry of the Health the Russian Federation, Lebedev Vladimir A. ,   Euromed Multidisciplinary Center for Modern Medicine LLC, Maksyuta Elena S. ,   Euromed Multidisciplinary Center for Modern Medicine LLC, Kalinichenko Anna A. ,   Omsk State Medical University Ministry of Health of the Russian Federation
Published: June 2024

Background. The problem of obesity is becoming more and more urgent every year. Because of this, bariatric surgery is becoming increasingly popular. Objective: to assess the quality of life of obese patients after mini-gastric surgery with a biliopancreatic loop length of 150 and 180 cm. Materials and methods. Patients after mini-gastric surgery were divided into two groups depending on the length of the biliopancreatic loop. Bariatric surgery was assessed according to BAROS. Results. For the first component of BAROS, the average score in group I was 2.15 and 2.13 in group II of patients. The average score for the 2nd component of BAROS was 2.16 points in group I and 2.05 in group II of patients. The average score for the third component in group I was 2.42 versus 2.02 points in group II of patients. Conclusions. Thus, when comparing the results for the three components of the BAROS bariatric analysis reporting and evaluation system, a higher quality of life score was obtained in the group of patients who underwent mini-gastric bypass with a biliopancreatic loop length of 150 cm.
External rectal prolapse: Which operation and Why?
Authors:   National and Kapodistrian University of Athens, Medical School, Greece., Charalampopoulos Anestis , Papagrigoriadis Savvas ,   International Society of Pelvic Surgery.
Published: June 2024

Background: External rectal prolapse is a rare condition and the only treatment option is surgery. In 10- 50% of patients (women) co-exist other anatomical and functional pelvic floor disorders and eventual should be corrected in the same time, requiring complex rectal and pelvic operations by a multidisciplinary team. Material and methods: A review of the literature based in Google Scholar and PubMed medical database was performed. The predominant surgical procedures in the literature were identified and the associated functional and anatomical pelvic floor disorders coexisting with the external rectal prolapse, the usefulness of preoperative examinations and the final surgical treatment were reviewed. Cross-references of the published articles were used to accomplish this review stud Results: There is a great variety of proposed surgical procedures for external full-thickness rectal prolapse. There is no surgical “gold standard” and the approaches vary. The procedures can be categorized into two main broad groups, abdominal and perineal ones. An important distinguishing factor is the potential use of prosthetic mesh which is popular but also involved in some rare but serious complications. The presence of comorbidities and individual patient characteristics makes the choice of procedure particularly complex. The input of pelvic floor multi-disciplinary team is required when prolapse of middle and anterior pelvic compartments is present. The number and variation of surgical options makes the process of the patient informed consent very important for the restoration of normal quality of life. Conclusions: External rectal prolapse is a condition which requires meticulous assessment and the surgical procedure of choice needs to be individualized according to the patient requirements.
Diagnosing anaplastic large cell lymphoma: A challenging case
Authors:   Department of Hematology, La Fe Polytechnic and University Hospital, Valencia, Spain., Eirís Juan
Published: June 2024

A 61-year-old man with multiple comorbidities was hospitalized following urosepsis. Broad-spectrum antibiotic therapy was initiated. Blood testing on admission revealed high levels of lactate dehydrogenase and beta-2 microglobulin, along with an important neutrophilic leukocytosis (25,310/μL) that persisted over its hospitalization. A blood smear revealed no morphologic findings, but flow cytometry showcased the presence of that could not be completely characterized. A total body scan was performed, revealing multiple lymphadenopathies above and below the diaphragm that raised suspicion on a lymphoproliferative disease. The histologic samples obtained through endoscopically guided biopsies of the lesions were non-evaluable for pathological characterization. Meanwhile, the patient quickly developed multiorgan failure and was taken into intensive care ten days after admission.
Advanced metallothionein profile in children with malaria infection
Authors:   Department of Medical Laboratory Science, School of Basic Medical Sciences, University of Benin, Benin City, Nigeria., Brown Somieye Imaobong , Emokpae Mathias Abiodun ,   Department of Medical Laboratory Science, School of Basic Medical Sciences, University of Benin, Benin City, Nigeria.
Published: June 2024

Background: Malaria is a leading cause of death in sub-Sahara Africa including Nigeria. The oxidative stress associated with malaria infection may affect the plasma protective proteins and trace elements which participate in the antioxidant defensive system. Aim: The aim of this study was to assess the Advanced Metallothionein Profile (AMP) of malaria infected children in Benin metropolis and determine its association with parasite density. Methods: This case-control study had a total of 350 children between 6 months and 11 years with two hundred malaria positive children as case and 150 malaria negative children as control. Socio-demographic data was obtained through a semi-structured questionnaire. Blood samples were taken from participants to determine malaria parasite density using thick film microscopy. Serum Metallothionein (MT), Glutathione (GSH) and Ceruloplasmin (CP) were analyzed using Enzyme linked Immunosorbent assay (ELISA) techniques, while copper (Cu) and Zinc (Zn) levels were determined using Atomic Absorption spectrometry (AAS). The data were analyzed using appropriate statistical tools.