bluuebunny/crossref_metadata_2025 huggingface dataset:
Sightings of dwarf minke whales in the Southern Hemisphere during the SOWER cruises
Authors: Kato Hidehiro , Matsuoka Koji , Nakamura Gen , Best Peter B.
Published: April 2024

This paper examines sightings of dwarf minke whales during the SOWER cruises. A total of 12 sightings were made between 1994/95 and 2003/04, across a relatively wide latitude (37°S–62°S) but limited longitude, between IWC Management Area III (0–70°E) and V (130°E–170°W), with no sightings in Area I (0–60°W) or II (60°W–120°W). Despite this low number of sightings, most were close to the Antarctic Convergence at 58°S–65°S. There may be some seasonality in their southbound migration.
Impact of Foreign Direct Investment (FDI) on Economic Growth: A Study of Brazil
Authors: Fernandes Arthur
Published: April 2024

Purpose: The aim of the study was to investigate the impact of foreign direct investment (FDI) on economic growth: a study of Brazil

Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.

Findings:  The study on Foreign Direct Investment (FDI) and economic growth in Brazil found a positive relationship between FDI inflows and GDP growth. FDI contributes to capital accumulation, technology transfer, and sectoral diversification, enhancing competitiveness. However, the impact varies across regions and industries, with disparities in spillover effects. Targeted policies are needed to maximize FDI benefits and promote inclusive growth, addressing regional disparities and socio-economic inequalities.

Unique Contribution to Theory, Practice and Policy: Dependency theory, modernization theory & institutional theory may be used to anchor future studies on the impact of foreign direct investment (FDI) on economic growth: a study of Brazil. The study should provide practical recommendations for firms and corporate boards to enhance their corporate governance practices based on empirical findings. The study should inform policymakers and regulatory authorities about the implications of corporate governance regulations on firm performance and market competitiveness.
Cross-Cultural Perspectives on Online Collaborative Learning in Germany
Authors: Fischer Leon
Published: April 2024

Purpose: The aim of the study was to investigate the cross-cultural perspectives on online collaborative learning in Germany.

Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.

Findings:  In Germany, online collaborative learning prioritizes structured environments and asynchronous communication to accommodate diverse schedules. Emphasis is placed on clear communication, punctuality, and achieving consensus through respectful dialogue. Educators stress the development of intercultural competence alongside disciplinary knowledge for effective cross-cultural engagement.

Unique Contribution to Theory, Practice and Policy: Hofstede's cultural dimensions theory, social identity theory & communities of practice theory may be used to anchor future studies on the cross-cultural perspectives on online collaborative learning in Germany. Establish professional development programs that offer continuous training and support for educators to enhance their cultural competence and pedagogical skills in facilitating online collaborative learning. Advocate for the integration of cross-cultural competency standards into teacher education programs and accreditation requirements to ensure that educators are adequately prepared to address the needs of culturally diverse student populations in online collaborative learning environments.
ANALISIS PENILAIAN KINERJA KEUANGAN PERUSAHAAN TERHADAP KELAYAKAN MENDAPATKAN KREDIT MODAL KERJA
Authors: Ilham Nurul Fadillah , S Masnawaty , Nuraisyiah Nuraisyiah
Published: April 2024

This research aims to determine the performance assessment of prospective debtor companies regarding the feasibility of obtaining working capital credit by BRI KCP Pettarani. Data collection techniques were carried out by conducting interview techniques, documentation techniques and library techniques. The data analysis technique was carried out using qualitative data analysis, namely collecting the data needed in this research, through interviews and documentation. As well as quantitative data analysis using calculations using formulas in analyzing the compa|ny's financial performance and calculating the amount of credit given by the bank.The results of this research are the first benchmark for banks, in this case, checking the SLIK (Financial Information Service System) of prospective debtors. The basis for approval for granting credit is an analysis of financial reports. Reportn Profit and Loss Reportn Balance Sheet of the prospective debtor for the last 3 years as a component of the financial reportngan which is a consideration for the bank. In analyzing the financial reports of potential bank debtors, there are 4 financial ratios, namely Liquidity Ratio, Activity Ratio, Solvency Ratio and Profitability Ratio. The business has been running for at least 2 years and meets the criteria for measurement used by the bank, namely the company's performance which is taken into consideration by the bank in deciding whether or not it is appropriate to grant working capital credit. The principle that influences debtors is the principle of Character. The principle that is indicated as problematic for debtors is the Capital principle. The action taken by Bank to implement the principle of supervision is to carry out an inventory. The bad character of the debtor is an obstacle faced by banks in the credit granting process
ANALISIS SISTEM PEMBERIAN KREDIT MODAL KERJA PADA PD. BPR BAHTERAMAS KOLAKA UTARA
Authors: Nadila Nadila , Rijal Abd. , Hamzah Hajrah
Published: April 2024

This research aims: to determine the system of providing working capital credit to PD. BPR Bahteramas North Kolaka. The variable in this research is the Working Capital Credit Provision System as a single variable. The population of this research is all employees at PD. BPR Bahteramas North Kolaka and customers, while the sample consists of (1) employees who have worked at least 1 year in the credit section of PD. BPR Bahteramas North Kolaka (2) employees who work to handle the process of granting credit to PD. BPR Bahteramas North Kolaka (3) working capital credit customers from 2020 to 2022 who have experience in procedures and lending credit funds to PD. BPR Bahteramas North Kolaka as many as 2 people. Data collection was carried out using documentation and interview techniques. Data analysis was carried out using qualitative descriptive analysis. The results of this research state that the credit granting system to PD. BPR Bahteramas Kolaka Utara has been running well and effectively, in accordance with the procedures, conditions, criteria for whether it is eligible or not and the guidelines that have been set, however there are several things that must be addressed because there are still differences in the recommendation for credit approval and the granting of credit approval.
PENGARUH PROFITABILITAS TERHADAP NILAI PERUSAHAAN PADA SEKTOR MAKANAN DAN MINUMAN DI BURSA EFEK INDONESIA
Authors: Palayukan Silvia , Rijal Abdul , Hasyim Sitti Hajerah
Published: April 2024

This study aims to determine the effect of Profitability on Firm Value in the Food and Beverage Sector on the Indonesia Stock Exchange. The variables in this study are Profitability as the independent variable, and Firm Value as the dependent variable. The population in this study are companies in the Food and Beverage Sector on the Indonesia Stock Exchange from 2019 to 2021 with a total of 26 companies. Sampling was carried out using a purposive sampling technique, namely a sampling technique with certain considerations and criteria with a sample of 16 companies. The data collection technique used is documentation. Data analysis techniques using descriptive statistical analysis, simple linear regression, t test, and the coefficient of determination. Based on the results of the study that Profitability has a significant effect on Firm Value in the Food and Beverage Sector on the Indonesia Stock Exchange. Based on the results of the study that: (1) the results of the descriptive analysis show that profitability (ROA) has a maximum value of 0.74, a minimum value of 0.2, an average value of 0.2888, and a standard deviation value of 18,143, besides that the company value (PBV) has a maximum value of 57.35, a minimum value of 1.71, an average value of 11.3519 and a standard deviation value of 13.40152. (2) the results of simple linear regression analysis obtained the equation Y = 4.164 + 53.735X, (3) the results of the t-test obtained the results of a sig value of 0.001 0.05, which means the variable Profitability on Firm Value in the Food and Beverage Sector on the Indonesia Stock Exchange, (4) the coefficient of determination is 0.529 or 52.9 percent. This means that profitability has an influence on firm value of 52.9 percent while the remaining 47.1 percent is influenced by other factors.
Navigating the Digital Tide: The Identity Resilience of the Ammatoa Indigenous Community amidst Communication Technology Shifts
Authors: Zelfia Zelfia , Cangara Hafied , Pulubuhu Dwia Aries Tina , Unde Andi Alimuddin
Published: April 2024

This study explores the dynamics of self-identity among the indigenous Ammatoa community in South Sulawesi, Indonesia, in the context of changing communication technologies. The Ammatoa people, residing both within and outside their ancestral territories, face challenges and opportunities brought about by modernization and globalization. They maintain a kamase-masea lifestyle, which signifies living simply and modestly, as an expression of sacred values and oral cultural heritage. While open to modern education and technology, they strive to preserve their traditions and local wisdom. This research employs a descriptive qualitative approach with an interpretivist paradigm, analyzing the interaction between tradition and modernity, the impact of communication technologies on social and cultural practices, and the strategies of identity adaptation and negotiation in both virtual and physical spaces. The findings reveal that the Ammatoa community endeavors to integrate aspects of modernity and tradition to maintain their cultural identity, navigate external pressures, and leverage social media to uphold and promote local wisdom while advocating for their rights.
Xudoyberdi To’xtaboyev fenomeni
Authors: Tulabayeva Ruxsora
Published: April 2024

O‘zbek bolalar adabiyotining taniqli namoyandalaridan biri Xudoyberdi To‘xtaboyev o‘z asarlarida bolalar xarakterini, bola ruhiy dunyosini g‘oyatda mukammal yoritgan yozuvchilardan hisoblanadi. Xudoyberdi To’xtaboyev o’zbek bolalar adabiyoti, xususan, prozasida yangi davrni boshlab berdi. U yaratgan qahramonlar xatti-harakati, gap-so’zlari, xarakteri bilan yosh kitobxonlarga nihoyatda manzur bo’ldi. Yozuvchi o’z tabiatidagi bolaga xos quvnoqlik va beg’uborlikni asarlariga ko’chira oldi. Ayni shu yumor bolalar qalbiga yaqin edi, bu yaqinlik uning yosh muxlislari tobora ortib borishiga sabab bo’ldi. Yozuvchi yaratgan qahramonlar betakror xususiyatlari bilan ko‘plab kitobxonlar qalbida yashab kelmoqda. Jumladan, uning Hoshimjon, Mirobiddinxo‘ja, Orifjon, Akrom qovunchi singari qahramonlari, ayniqsa, yosh kitobxonlarga allaqachon yod bo‘lib ketgan. Sababi, ushbu qahramonlar xarakterining esda qolar darajada yorqinligi, quvnoqligi, bolaga xos beg‘ubor va soddadilligi, kulgi, hazil mutoyibaga moyilligi xarakter tabiatini yanada yorqinlashtirgan. Maqolada yoritilgan masala faqatgina Xudoyberdi To’xtaboyevning biografiyasi hamda yozgan asarlarini sanash emas, balki uning romanlariga xos xususiyatlarni tahliil qilish hamdir.
Xorazm adabiy muhitida devonchilik an’anasi
Authors: Umarova Sohiba
Published: April 2024

Mazkur maqolada XIX asr oxiri – XX asr boshlarida Muhammad
Rahimxon II Feruz asos solgan Xorazm adabiy muhiti devonchilik an’anasining o’ziga xos shakllari, shahzoda shoirlardan Sultoniy va Sa’diy ijodi va ular tomonidan tartib berilgan devonlar, devonlardagi ba’zi she’rlar, xususan, g’azal, mustazod, muxammaslaridan numunalar keltiriladi, qo‘lyozmalardagi she’rlar matni O‘zbekiston Respublikasi Abu Rayhon Beruniy nomidagi Sharqshunoslik instituti Qo‘lyozmalar fondida saqlanayotgan manbalar asosida tahlil etiladi. Xorazm devonchilik an’analarini o‘rganish, shahzoda shoirlar, xususan, Sultoniy, Sa’diy, G’oziy, Asadlar tomonidan tartib berilgan devonlar qo‘lyozmalarining o‘zaro matniy-qiyosiy tadqiqi va tahlilini amalga oshirish o‘zbek adabiyoti tarixini to‘ldiradi hamda bu davrning tarixiy, madaniy, adabiy muhitini o‘rganish muhim manba bo‘ladi.
SUPPOSe 3Dge: A Method for Super-Resolved Detection of Surfaces in Volumetric Fluorescence Microscopy
Authors: Brinatti Vazquez Guillermo D. , Lacapmesure Axel M. , Martínez Sandra , Martínez Oscar E.
Published: April 2024

We present SUPPOSe 3Dge, a method for the detection of surfaces in volumetric fluorescence microscopy images with resolution better than the diffraction limit. The method works by approximating an arbitrary object surface as a polyhedron formed by small triangular faces, which are thought as virtual point like sources of signal gradient. Then, the super resolution arises from solving a least square problem only on the positions of the sources, by comparing the measured image gradient with a synthetic one built from the approximated surface and the known point spread function of the instrument. We present the formulation of the method and its characterization using simulated measurements of two different types. We show that the method is able to identify with high precision and accuracy the sizes and shapes of objects smaller than the instrumental resolution. Using different quantifiers that measure the distance between the solution and the target object, we report reconstructions with an accuracy 100 times better than the axial resolution and 40 times the lateral resolution of the instrument.
 
Received: 22 December 2023 | Revised: 11 March 2024 | Accepted: 2 April 2024
 
Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.
 
Data Availability Statement
Data available on request from the corresponding author upon reasonable request.
 
Author Contribution Statement
Guillermo D. Brinatti Vazquez: Conceptualization, Methodology, Software, Validation, Formal analysis, Investigation, Data curation, Writing – original draft, Writing – review & editing, Visualization. Axel M. Lacapmesure: Software, Writing – review & editing. Sandra Martínez: Conceptualization, Methodology, Writing – review & editing, Supervision, Project administration, Funding acquisition. Oscar E. Martínez: Conceptualization, Methodology, Writing – review & editing, Supervision, Project administration, Funding acquisition.
Delving into the Cinematic Representation of the Nexus between Gender Dynamics, Social Entrepreneurship and Sustainability in India
Authors: Nain Harikishni
Published: April 2024

This study aims to present a comprehensive examination of the cinematic representation of the nexus between gender dynamics, social entrepreneurship, and sustainability in India. Previous researchers have widely documented that cinema across the globe has been a powerful medium that both reflects and influences societal norms, perceptions, beliefs, and values. Over the years, Indian cinema has also witnessed a significant transformation in the portrayal of gender dynamics. From traditional gender roles and stereotypes, there has been a shift towards more inclusive and progressive narratives that challenge the status quo. The changing gender dynamics in Indian cinema are a testament to the evolving role of women in society. From traditional, submissive roles, Indian films have moved towards portraying women as strong, independent, self-reliant, and multifaceted individuals. While challenges remain, the impact of these portrayals on society is undeniable, and Indian cinema continues to play a pivotal role in advocating for gender equality, entrepreneurship, and sustainability in the country. This study explores the cinematic depiction of changing gender dynamics, social entrepreneurship, and sustainability in Indian cinema by focusing on the evolution of women’s roles and the representation of gender diversity and empowerment.
Navigation of Climate Change Framework: Analysis of Synergy Between SDGs and UNFCCC
Authors: Acharya Kalyani
Published: April 2024

The year 2015 is potentially historic, marked by the alignment of Sustainable Development Goals (SDGs) and a novel international climate action treaty. This synergy signifies a pivotal moment for steering human development toward sustainability. The documents underline the inherent connection between climate and development, recognizing that addressing the climate challenge significantly impacts the achievement of various SDGs, and vice versa. The research paper synthesizes the relationship between Sustainable Development Goal 13 and the global climate action policy within the Climate Change framework. Additionally, it offers insights into the strategies employed to meet the ambitious temperature targets of the Paris Agreement, aiming for a rise of less than 2°C above preindustrial levels and even more stringent efforts to limit the increase to 1.5°C. The study also underscores a notable gap in implementing climate action to combat climate change.
A Tripple Bottom Line Assessment of Solid Waste Mangaement System: An Application of AHP
Authors: Gautam Hemant , Garg Ruchi Jin , Tiwari Sadhana
Published: April 2024

Effective solid waste management is essential for sustainable development, addressing environmental concerns, and achieving socio economic well-being. This study presents a comprehensive analysis of the solid waste management system using the Triple Bottom Line (TBL) framework and employs the Analytic Hierarchy Process (AHP) as a decision-making tool. The research aims to evaluate the environmental, social, and economic dimensions of thewaste management system, considering various criteria and sub-criteria. The environmental dimension assesses the impact of waste management practices on ecosystems, natural resources, and climate change. Factors such as waste reduction, recycling, composting, and energy recovery are evaluated to determine their environmental effectiveness. The social dimension focuses on the implications of waste management on human health, community well-being, and equity. Parameters like public participation, awareness programs, employment generation, and social justice are considered. The economic dimension investigates the financial viability and cost-effectiveness of waste management strategies. Criteria such as cost of collection, treatment, disposal, revenue generation, and economic benefits are examined. The Analytic Hierarchy Process (AHP) is applied to analyse the relative importance of criteria and sub-criteria in the TBL assessment. AHP allows decision-makers to structure the decision problem, prioritize criteria, and derive weights based on pairwise comparisons. Expert opinions, stakeholder inputs, and available data are utilized to establish the decision hierarchy and pairwise comparisons. The AHP process facilitates a systematic evaluation, enabling decision-makers to identify the most suitable waste management strategies based on TBL principles. The findings of this study provide valuable insights into the performance of the solid waste management system from a TBL perspective. By considering the environmental, social, and economic dimensions simultaneously, decision makers can identify strategies that achieve optimal outcomes across multiple dimensions. The AHP-based assessment enables a transparent and rational decision-making process, promoting informed choices and resource allocation in waste management. This research contributes to the existing body of knowledge by integrating the TBL framework and AHP methodology for solid waste management assessment. It emphasizes the importance of a holistic approachto waste management that goes beyond traditional cost considerations.
Archipsocus michamwiensis n. sp. - a new species of Psocoptera (Insecta) from Zanzibar (Tanzania)
Authors: Georgiev Dilian
Published: April 2024

This paper describes Archipsocus michamwiensis n. sp., a new species from the family Archipsocidae collected in Zanzibar, Tanzania. The single female (holotype) is macropterous and exhibits distinct reddish-brown colouration, and equal-length tarsal segments. Morphological measurements highlight features such as short antennae and a V-shaped pigmented area on the subgenital plate.
LA ORGANIZACIÓN COMO SISTEMA HUMANO COMPLEJO
Authors: Ospina Jiménez Henry , Torres Quintero Laura Liceth
Published: April 2024

En el contexto actual se hace imprescindible que dilucidemos y ampliemos la visión de la actividad empresarial, más específicamente de la organización o entidad organizacional, la cual no solo funciona gracias a los seres humanos sino, que presenta cualidades, características y similitudes con los mismos; los seres humanos son sistemas complejos, y como las organizaciones presentan similitudes con ellos, en este documento se pretende abrir paso a una percepción de la organización como sistema humano complejo.
Pointwise convergence on the rings of functions which are discontinuous on a set of measure zero
Authors: Mandal Dhananjoy , Singha Achintya , Bag Sagarmoy
Published: April 2024

Consider the ring  ℳ∘ ( X , μ ) of functions which are discontinuous on a set of measure zero which is introduced and studied extensively in [2]. In this paper, we have introduced a ring  B1 ( X , μ ) of functions which are pointwise limits of sequences of functions in ℳ∘ ( X , μ ) . We have studied various properties of zero sets, B1 ( X , μ ) -separated and B1 ( X , μ ) -embedded subsets of B1 ( X , μ ) and also established an analogous version of Urysohn's extension theorem. We have investigated a connection between ideals of B1 ( X , μ ) and ZB -filters on X. We have studied an analogue of Gelfand-Kolmogoroff theorem in our setting. We have defined real maximal ideals of B1 ( X , μ ) and established the result | ℛ M a x ( ℳ∘ ( X , μ ) ) | = | ℛ M a x ( B1 ( X , μ ) ) | , where ℛ M a x ( ℳ∘ ( X , μ ) ) and ℛ M a x ( B1 ( X , μ ) ) are the sets of all real maximal ideals of ℳ∘ ( X , μ ) and B1 ( X , μ ) respectively.
On topological groups of monotonic automorphisms
Authors: Buzyakova Raushan
Published: April 2024

We study topological groups of monotonic automorphisms on a generalized ordered space L. We find a condition that is necessary and sufficient for the set of all monotonic automorphism on L along with the function composition and the topology of point-wise convergence to be a topological group.
Hemi metric spaces and Banach fixed point theorems
Authors: Ozturk Vildan , Radenovic Stojan
Published: April 2024

In this work, we will define a new type metric with degree m and m+1 points which is called m-hemi metric as a generalization of two metric spaces. We will give and prove some topological properties. Also, Banach contraction mapping principle were proved and a application to Fredholm integral equation were gived in hemi metric spaces.
Some existence and uniqueness results for a solution of a system of equations
Authors: Khantwal Deepak , Pant Rajendra
Published: April 2024

This paper presents some existence and uniqueness results for a system of mappings on the finite product of metric spaces. Our results extend and generalize the well-known and celebrated results of Boyd and Wong [Proc. Amer. Math. Soc. 20 (1969)], Matkowski [Dissertations Math. (Rozprawy Mat.) 127 (1975)], Proinov [Nonlinear Anal. 64 (2006)], Song-il Ri [Indag. Math. (N. S.) 27 (2016)] and many others. We also present some illustrative examples to validate our results.
Expansive homeomorphisms on quasi-metric spaces
Authors: Olela Otafudu Olivier , Matladi Dibona Peggy , Zweni Mcedisi Sphiwe
Published: April 2024

The investigation of expansive homeomorphisms in metric spaces began with Utz in 1950. Thereafter, several authors have extensively studied this concept for different motivations. In this current article, we study expansive homeomorphism in the context of quasi-pseudometric spaces. This is motivated by the fact that any expansive homeomorphism on quasi-pseudometric space is again expansive homeomorphism on its induced pseudometric space but the converse is not true in general. Moreover, the study of orbit structures has been taken to consideration in this article. For instance, we investigate the denseness of orbits in the context of quasi-metric spaces.
Homomorphisms of the lattice of slowly oscillating functions on the half-line
Authors: Iwamoto Yutaka
Published: April 2024

We study the space H(SO) of all homomorphisms of the vector lattice of all slowly oscillating functions on the half-line ℍ = [ 0 , ∞ ) . In contrast to the case of homomorphisms of uniformly continuous functions, it is shown that a homomorphism in H(SO) which maps the unit to zero must be zero-homomorphism. Consequently, we show that the space H(SO) without zero-homomorphism is homeomorphic to ℍ x (0, ∞). By describing a neighborhood base of zero-homomorphism, we show that H(SO) is homeomorphic to the space ℍ x (0, ∞) with one point added.
On σ-compact Hattori spaces
Authors: Chatyrko Vitalij A.
Published: April 2024

We present several characterizations of σ-compact Hattori spaces, and reject some possible characterization candidates of the spaces.
Common fixed point theorems on complete and weak G-complete fuzzy metric spaces
Authors: Adhya Sugata , Deb Ray A.
Published: April 2024

Motivated by Gopal and Vetro, we introduce a symmetric pair of β-admissible mappings and obtain common fixed point theorems for such a pair in complete and weak G-complete fuzzy metric spaces. In particular, we rectified, generalize and improve the common fixed point theorem obtained by Turkoglu and Sangurlu for two fuzzy ψ-contractive mappings. We include non-trivial examples to exhibit the generality and demonstrate our results.
Importance of Location for Addition of Surfactant Inhibitors in Corrosion Experiments
Authors: Singla Kushal , Brown Bruce , Nešić Srdjan
Published: April 2024

The use of organic surfactant corrosion inhibitors provides an economical and effective way for internal corrosion control of oil and gas production and transportation pipelines. Corrosion inhibition measurements using electrochemical techniques can be used to evaluate the efficacy of corrosion inhibitors based on steady-state corrosion rates. The corrosion behavior with respect to time can further be utilized to quantify the adsorption kinetics of inhibitor molecules on metal and can further be integrated into the development of corrosion prediction tools. However, corrosion rate measurements can be very sensitive to experimental methodology in the presence of corrosion inhibitors in the test solution, and repeatability is often difficult to achieve if a robust methodology is not followed meticulously. In this study, the importance of the location of inhibitor addition in lab-scale corrosion experimentation is discussed.
Persepsi Masyarakat Pedesaan Terhadap Penerimaan Vaksinasi Covid-19 Tahap III (Booster)
Authors: Irma Irma , Sabilu Yusuf , Amelia Besse
Published: April 2024

Penerimaan vaksinasi COVID-19 tahap III (booster) tiap kabupaten/kota di Provinsi Sulawesi Selatan memperoleh cakupan yang berbeda-beda. Jika dibandingkan dengan kabupaten/kota lainnya, Kabupaten Wajo memperoleh cakupan vaksin COVID-19 tahap III (booster) masih rendah yaitu 14.06%, dimana Desa Watan Rumpia memiliki persentase cakupan vaksinasi COVID-19 tahap III (booster) terendah per 16 Agustus 2022. Hal ini disebabkan karena persepsi dari masyarakat itu sendiri dalam menanggapi penerimaan vaksinasi COVID-19 tahap III (booster). Penelitian ini bertujuan untuk mengetahui hubungan antara persepsi masyarakat mengenai kerentanan, keparahan, manfaat dengan penerimaan vaksinasi COVID-19 tahap III (booster) di Desa Watan Rumpia, Kabupaten Wajo tahun 2023. Desain penelitian yang digunakan yaitu analitik dengan rancangan cross-sectional. Populasi dalam penelitian ini adalah masyarakat yang telah menerima vaksin tahap II, usia di atas 18 tahun di Desa Watan Rumpia dengan jumlah sampel penelitian 125 responden yang dihitung menggunakan rumus Slovin. Sampel diambil menggunakan teknik penarikan sampel simple random sampling. Analisis data dilakukan secara univariat dan bivariat yang menggunakan uji Chi-square dengan tingkat kepercayaan 95%, dengan bantuan aplikasi SPSS v25.0. Hasil penelitian menunjukkan bahwa terdapat hubungan antara persepsi kerentanan (nilai P=0,008), persepsi keparahan (nilai P=0,005), persepsi manfaat (nilai P=0,007) dengan penerimaan vaksinasi COVID-19 tahap III (booster).
Under Control
Authors:   Amelie Hornung,   Lukas Dominik
Published: April 2024

Die Integration von Sensortechnik verwandelt Kupplungen von passiven zu aktivenKomponenten innerhalb des Antriebsstrangs. Durch die direkte Erfassung von Datenwie Drehmoment, Drehzahl, Beschleunigung und sogar axialen sowie radialen Kräftendirekt an der Quelle, ermöglichen diese smarten Kupplungen eine hohe Kontrolle undEinsicht in den Zustand und die Performance von Maschinen.
KI, Soft-Robotik und 4D-Druck
Authors:   Nicole Steinicke
Published: April 2024

Einer der zentralen Trends in der Industrie ist der Übergang zuintelligenten Fabriken als Teil des Internet of Things. Wie weitsind wir mit der Einbindung von KI und welche Auswirkungenhat dies für Konstrukteure in der Praxis?
Channel concavity controls plan-form complexity of branching drainage networks
Authors: Goren Liran , Shelef Eitan
Published: April 2024

Abstract. The plan-form geometry of branching drainage networks controls the topography of landscapes as well as their geomorphic, hydrologic, and ecologic functionality. The complexity of networks' geometry shows significant variability, from simple, straight channels that flow along the regional topographic gradient to intricate, tortuous flow patterns. This variability in complexity presents an enigma, as models show that it emerges independently of any heterogeneity in the environmental conditions. We propose to quantify networks' complexity based on the distribution of lengthwise asymmetry between paired flow pathways that diverge from a divide and rejoin at a junction. Using the lengthwise asymmetry definition, we show that the channel concavity index, describing downstream changes in channel slope, has a primary control on the plan-form complexity of natural drainage networks. An analytic model based on geomorphic scaling relations and optimal channel network simulations employing an energy minimization principle reveal that landscapes with low concavity channels attain stable plan-form configuration only through simple geometry. In contrast, landscapes with high-concavity channels achieve plan-form stability with various degrees of network complexity, including extremely complex geometries. Landscape evolution simulations demonstrate that the concavity index and its effect on the multiplicity of available geometries control the tendency of networks to preserve the legacy of former environmental conditions. Consistent with previous findings showing that channel concavity correlates with climate aridity, we find a significant empirical correlation between aridity and network complexity, suggesting a climatic signature embedded in the large-scale plan-form geometry of landscapes.
Decadal Resolution of ‘Forever Chemical’ of PFOS in the groundwater of Yorkshire County, United Kingdom: The Future of the Past Learnings
Authors: Dogra Kanika , Kumar Manish , Agarwal Vivek
Published: April 2024

We present the interpretation of the Perfluorooctane sulfonate (PFOS) dataset spread over eighteen years between 2005 to 2023. The data explicitly depicts the essence of i) a growing monitoring network with growing concern i.e. ten to nearly 100 locations; ii) increasing resolution in knowing the chemical closely with advancing technologies i.e. inclusion of branched and linearity of PFOS rather than just ionic form; iii) increasing the diversity of systems being gradually included in the monitoring system to appreciate the environmental interactions, i.e. only groundwater to freshwater to even brackish water systems. This government-supported monitoring data tracks the curve of PFC-related concern for water sectors over the last two decades of the 21st century and thus provides the learnings for the future. The dataset also indicates that knowing a problem is the first step towards taking the right steps towards correcting that given system, as evident by decreasing PFOS concentrations between 2005 (ND to 0.5 µgL−1) to 2023 (ND to 0.012 µgL−1) in the groundwater environment of Yorkshire, UK. However, the data fails to provide confirmatory evidence of PFC pathways linking with surface-groundwater interactions. This work can be an eye-opener for policymakers of developing countries who are so reluctant to acknowledge the lack of regulations, and thus the associated need to monitor of chemicals of emerging concerns like PFAs, thus completely losing the opportunity of establishing stringent guidelines at the right time.
Keeping up with a fast changing world with rapid-revisit and long-dwelling SAR observations
Authors: Wollersheim Michael
Published: April 2024

The Earth is facing increasingly frequent natural disasters and environmental changes that require continually advancing techniques to observe, measure, understand and respond to. For decades, Synthetic Aperture Radar (SAR) data has provided a critical input for scientists, engineers and analysts seeking to gain a better understanding of the processes that occur before, during and after an event. Although some processes are slowly evolving, taking months or even years to accumulate significant change, it is the critical moments just prior to an event and onward that often require data more frequently than it is available. Similarly, some earth processes simply develop too quickly to be captured with a revisit rate of several days or weeks.A new paradigm is emerging in earth observation, enabled by the proliferation of SAR sensors in orbit that can be combined to provide daily and even sub-daily coherent revisit rates. Along with these new satellite missions come advances in sensor technology providing enhanced modes of SAR imaging. Among these is long-dwell imaging that provides considerably richer information and perhaps most interestingly, the ability to produce SAR videos, capturing changes as they occur. This talk will present highlights from our experience utilizing the ICEYE SAR constellation in real earth science and natural catastrophe scenarios where rapid revisit or long-dwell were key enabling factors. By showing a glimpse into these dynamic processes as they unfold, we hope to inspire a new way of thinking about SAR data and challenge the conventional wisdom about what problems can and cannot be solved using SAR. It’s clear that we are only scratching the surface and that there remain many new things we can learn.
LegacyVegetation 1.0: Global reconstruction of vegetation composition and forest cover from pollen archives of the last 50 ka
Authors: Schild Laura , Ewald Peter , Li Chenzhi , Hébert Raphaël , Laepple Thomas , Herzschuh Ulrike
Published: April 2024

Abstract. With rapid anthropogenic climate change future vegetation trajectories are uncertain. Climate-vegetation models can be useful for predictions but need extensive data on past vegetation for validation and improving systemic understanding. Even though pollen data provide a great source of this information, the data is compositionally biased due to differences in taxon-specific relative pollen productivity (RPP) and dispersal. Here we reconstructed quantitative regional vegetation cover from a global sedimentary pollen data set for the last 50 ka using the REVEALS model to correct for taxon- and basin-specific biases. In a first reconstruction, we used previously published, continental RPP values. For a second reconstruction, we statistically optimized RPP values for common taxa with the goal of improving the fit of reconstructed forest cover from modern pollen samples with remote sensing forest cover. The data sets include taxonomic compositions as well as reconstructed forest cover for each original pollen sample. Relative pollen sources areas were also calculated and are included in the data set of the original REVEALS run. Additional metadata includes modeled ages, age model sources, basin locations, types and sizes. The improvements in forest cover reconstructions with the REVEALS reconstruction using original/optimized parameters range from 1/0 % (Australia and Oceania/Australia and Oceania) to 58/65 % (Europe/North America) relative to the mean absolute error (MAE) in the pollen-based reconstruction. Optimizations were considerably more successful in reducing MAE when more records and RPP estimates were available. The optimizations were purely statistical and only partly ecologically informed and should, therefore, be used with caution depending on the study matter. This improved quantitative reconstruction of vegetation cover is invaluable for the investigation of past vegetation dynamics and modern model validation. By collecting more RPP estimates for taxa in the Southern Hemisphere and adding more records to existing pollen data syntheses, reconstructions may be improved even further. Both reconstructions are freely available on PANGAEA (see Data availability section).
Study on Multi-water Sources Allocation Based on Multi-scenario potential tapping under Extreme Drought: An Example from the Yellow River Water Supply Area in Henan
Authors: Wan Fang , Peng Shaoming , Wang Yu , Zheng Xiaokang , Zhang Fei , Wang Weihao , Shen Xiaohui
Published: April 2024

Abstract. The water supply of water resources allocation under extreme drought is insufficient, and the limited available water resources make it urgent to tap the potential of water supply. In this paper, the Yellow River water supply area in Henan Province is taken as an example to study the multi-water source allocation under extreme drought. According to the Palmer Drought Severity Index (PDSI), the extreme drought years are selected, and the water supply and demand balance in the extreme drought years is analyzed, and the water shortage degree of each water supply area is obtained. In this paper, unconventional water, flood resource utilization and elastic exploitation of groundwater are used as potential water sources. Different water supply scenarios are set up according to different potential tapping measures, and multi-scenario supply increase under extreme drought is explored. A multi-water source allocation model with the goal of minimizing water shortage is constructed, and a multi-scenario supply increase allocation scheme is proposed, which provides a basis for the study of water supply increase allocation to alleviate the drought degree of the the Yellow River Water Supply Area in Henan. Through the Multi-scenario potential tapping of multiple water sources, the existing potential water volume can be maximized, which is conducive to reducing the water supply pressure and water use restrictions of conventional water sources, improving the support capacity and guarantee capacity of water resources, and reducing the economic and social development bottlenecks caused by extreme drought.
CALDERA: a scientific drilling concept to unravel Connections Among Life, geo-Dynamics and Eruptions in a Rifting Arc caldera, Okataina Volcanic Centre, Aotearoa New Zealand
Authors: Massiot Cécile , Adam Ludmila , Boyd Eric S. , Cary S. Craig , Colman Daniel R. , Cox Alysia , Hughes Ery , Kilgour Geoff , Lelli Matteo , Liotta Domenico , Lloyd Karen G. , Marr Tiipene , McNamara David D. , Milicich Sarah D. , Miller Craig A. , Misra Santanu , Nichols Alexander R. L. , Pierdominici Simona , Rooyakkers Shane M. , Schmitt Douglas R. , Stefansson Andri , Stix John , Stott Matthew B. , Thomas Camille , Villamor Pilar , Wang Pujun , Zarrouk Sadiq J. ,   the CALDERA workshop participants
Published: April 2024

Abstract. Silicic caldera volcanoes present major volcanic and seismic hazards but also host dynamic hydrothermal and groundwater systems and a rich but largely unexplored subsurface biosphere. Many of these volcanoes are hosted in rift settings. The intricate connections and feedbacks among magmatism, rifting, hydrothermal processes, and the biosphere in these complex systems remain poorly understood, necessitating subsurface joint observations that are only enabled by scientific drilling. The CALDERA (Connections Among Life, geo-Dynamics and Eruptions in a Rifting Arc caldera) project workshop funded by the International Continental Scientific Drilling Program (ICDP) gathered multi-disciplinary international experts in January 2023 to advance planning of a scientific drilling project within one of these dynamic, rift-hosted calderas, the Okataina Volcanic Centre (OVC), Aotearoa New Zealand. The OVC's high eruption rate, frequent unrest events and earthquake swarms, location in a densely faulted rapidly extending rift, abundant groundwater–geothermal fluid circulations, and diverse surface hot spring microbiota make it an ideal location for exploring a connected geo-hydro-biosphere via scientific drilling and developing a test bed for novel volcano monitoring approaches. Drilling configurations with at least two boreholes (∼ 200 and ∼ 1000–1500 m deep) were favoured to achieve the multi-disciplinary objectives of the CALDERA project. Decadal monitoring including biosphere activity and composition has the potential to evaluate the response of the hydro-bio system to volcano-tectonic activity. In addition to the OVC caldera-scale datasets already available, site surveys will be conducted to select the best drilling locations. The CALDERA project at the OVC would provide, for the first time, an understanding of volcanic–tectonic–hydrological–biological connections in a caldera–rift system and a baseline for global comparisons with other volcanoes, rifts, and hydrothermal systems. CALDERA would serve as an unprecedented model system to understand how and how quickly the subsurface biosphere responds to geologic activities. Discoveries will improve assessment of volcanic and seismic hazards, guide the sustainable management and/or conservation of groundwater and geothermal resources and microbial ecosystems, and provide a forum for interweaving mātauranga Māori and Western knowledge systems.
Characterization of Dynamic Stall on Large Wind Turbines
Authors: Kim Hye Rim , Printezis Jasson A. , Ahrens Jan Dominik , Seume Joerg R. , Wein Lars
Published: April 2024

Abstract. This study shows an extensive analysis of dynamic stall on wind turbine airfoils preparing the development of a reduced-order model applicable to thick airfoils (t / c > 0.21) in the future. Utilizing URANS simulations of a pitching FFA-W3-211 airfoil at the Reynolds number of 15 million, our analysis identifies the distinct phases in the course of the evolution of dynamic stall. When the dynamic stall is conventionally categorized into the primary instability transitioning to the vortex formation stage, we suggest two sub-categories in the first phase, and an intermediate stage featuring a plateau in lift prior to entering the full stall region. This delays the inception of deep stall, approximately 3° for a simulation case. This is not predictable with existing dynamic stall models, optimized for low Reynolds number applications. These features are attributed to the enhanced flow attachment near the leading-edge, restricting the stall region downstream of the position of maximum thickness. The analysis on the frequency spectra of unsteady pressure confirms the distinct characteristics of the leading-edge vortex street and its interaction with large-scale mid-chord vortices to form the dynamic stall vortices (DSVs). Examination of the leading-edge suction parameter (LESP) proposed by Ramesh et al. (2014) for thin airfoils under low Reynolds numbers reveals that LESP is a valid criterion in predicting the onset of the static stall for thick airfoils under high Reynolds numbers. Based on the localized separation behavior during a dynamic stall cycle, we suggest a mid-chord suction parameter (MCSP) and trailing-edge suction parameter (TESP) as supplementary criteria for the identification of each stage. The MCSP exhibits a breakdown in magnitude at the onset of the dynamic stall formation stage and full stall, while TESP supports indicating the emergence of a deep stall by detecting the trailing-edge vortex.
Impacto de la digitalización en el empleo y las cualificaciones: el caso de la logística
Authors: Merino Rafael , Pérez Francisco
Published: April 2024

La digitalización ha producido un impacto notable en la esfera profesional, introduciendo alteraciones en el empleo paralelas a su desarrollo. El presente artículo se centra en analizar la influencia que la mencionada digitalización ha protagonizado en el sector de la logística, atendiendo a las competencias introducidas y potenciadas por este fenómeno, concretamente en las PYMES nacionales. Para ello, se realizó una búsqueda bibliográfica de la que se recopiló tanto literatura académica como informes ya publicados, para posteriormente diseñar un cuestionario difundido a empresas del sector, diversas entrevistas a expertos de distintos ámbitos y un grupo de debate entre los mismos para extraer información contextualizada y contrastar la revisada de los académicos. La digitalización ha producido modificaciones en la logística, no obstante, no han sido cambio uniformes y han afectado multidimensionalmente. Además, resulta necesaria una revisión de la oferta y los currículos educativos para responder al desarrollo digital de forma efectiva.
Religio, pietas y sacrilegio en la iconografía monetaria de la Roma tardorrepublicana y altoimperial
Authors: Labrador Ballestero Patricia , Vico Belmonte Ana
Published: April 2024

La moneda romana presenta una gran variedad de mensajes iconográficos que muestran la gran relación que hubo entre la religión tradicional, la transmisión de mensajes por parte del Estado y la moneda. En este artículo se analizan algunos de estos mensajes y la vinculación existente entre la moneda y el sacrilegio. Para ello se han seleccionado piezas clave dentro de la amonedación romana tardorrepublicana y altoimperial, abarcando un marco cronológico que data, de manera aproximada entre el 133 a.C. y el 192 d.C. y se ha estudiado la vinculación existente entre los tipos expuestos y su contexto sociopolítico.