bluuebunny/crossref_metadata_2025 huggingface dataset:
Acil Uzaktan Eğitim Sürecinde Sınıf Öğretmenlerinin Algıları Üzerine Bir İnceleme
Authors: Demiröz Sena , Dağ Funda
Published: May 2024

Acil uzaktan eğitim döneminde öğretmenler var olan dijital yeterliklerini kullanarak sürece adapte olmaya çalışmış ve kendi hayat boyu öğrenme yeterlikleri ile ilişkili olarak kendilerini geliştirmişlerdir. Bu araştırmada, sınıf öğretmenlerinin acil uzaktan eğitime dair algılarının, dijital öğretmen yeterlikleri ve hayat boyu öğrenme yeterlik algıları ile ilişkisinin incelenmesi amaçlanmıştır. Acil uzaktan eğitim sürecini deneyimlemiş 318 gönüllü sınıf öğretmeninin katıldığı araştırma nicel araştırma yöntemlerinden korelasyonel araştırma deseninde yapılmıştır. Araştırma sonucunda öğretmenlerin acil uzaktan eğitim algıları “orta”, dijital öğretmen yeterlik algıları “yüksek”, yaşam boyu öğrenme yeterlik algıları “yüksek” düzeyde bulunmuştur. Öğretmenlerin acil uzaktan eğitim algıları ile dijital öğretmen yeterlik algıları arasında istatistiksel olarak anlamlı ve düşük düzeyde negatif yönlü bir ilişki bulunurken; acil uzaktan eğitim algıları ile yaşam boyu öğrenme yeterlik algıları arasında istatiksel olarak anlamlı bir ilişki bulunamamıştır. Dijital öğretmen ve yaşam boyu öğrenme yeterlik algılarının acil uzaktan eğitim algılarını %7 düzeyinde yordadığı sonucuna varılmıştır.
Pendampingan Pengelolaan Website Desa Sebagai Bentuk Komunikasi Publik Pemerintah Desa
Authors: Jamiah Ririn , Yuliasari Alfiyana , Syahid Ahmad
Published: May 2024

The village website is a medium for the disclosure of various public information by the government. In line with this, Sumber Baru village, Seputih Banyak District, Central Lampung has a village website that the government can use as a communication medium for village programs, but its management is still not optimal. The aim of this service is to provide assistance to village operators to manage websites, especially in terms of writing articles, taking photos and managing website interface. The method used in this mentoring activity is the ABCD (Asset Based Community Development) method. This mentoring activity will be carried out in September-October 2023 and consists of 5 stages of mentoring, namely coordination, socialization, training, mentoring and evaluation. After completing the mentoring activities, the results of the mentoring can be seen directly on the village website and show that there has been an improvement in website management, such as an increase in the number of news/activities in Sumber Baru Village that are reported on the website. It is hoped that mentoring activities like this will be further increased to improve the quality of village human resources which will have an impact on improving public communication by the village government.            Keywords: mentoring; public communication; village website
Meningkatkan Pelayanan dan Pengunaan Sosial Media sebagai Promosi Camping Ground Berbasis Syari’ah
Authors: Pratiwi Nila , Charli Chintya Ones
Published: May 2024

This service aims to improve services and use of social media as a sharia-based camping ground promotion in Twin Lakes, Solok Regency. The service method includes initial identification and analysis of the application of social media carried out by sharia-based camping ground managers on the Twin Lakes, preparation of improvement plans in accordance with the characteristics of sharia-based camping grounds through social media, training and assistance for camping ground business managers, as well as evaluation and monitoring to measure the impact of implementing improved services, social media as promotion, it is hoped that the management of the Twin Lakes sharia-based camping ground can improve services and optimize the use of social media. The results of this service can help managers increase interest in visiting, increase visitor attraction, increase promotion of sharia-based camping grounds. Feedback from managers will also be evaluated to assess the success of the service. It is hoped that through this service, Management can have a better understanding of the importance of improving service quality, optimizing effective and efficient social media in promoting sharia-based camping grounds. Apart from that, it is hoped that the management can make a positive contribution to economic growth in Alahan Panjang, Solok district.Keywords : camping ground; promotion; service; social mediaThis service aims to improve services and use of social media as a sharia-based camping ground promotion in Twin Lakes, Solok Regency. The service method includes initial identification and analysis of the application of social media carried out by sharia-based camping ground managers on the Twin Lakes, preparation of improvement plans in accordance with the characteristics of sharia-based camping grounds through social media, training and assistance for camping ground business managers, as well as evaluation and monitoring to measure the impact of implementing improved services, social media as promotion, it is hoped that the management of the Twin Lakes sharia-based camping ground can improve services and optimize the use of social media. The results of this service can help managers increase interest in visiting, increase visitor attraction, increase promotion of sharia-based camping grounds. Feedback from managers will also be evaluated to assess the success of the service. It is hoped that through this service, Management can have a better understanding of the importance of improving service quality, optimizing effective and efficient social media in promoting sharia-based camping grounds. Apart from that, it is hoped that the management can make a positive contribution to economic growth in Alahan Panjang, Solok district. Keywords: camping ground; promotion; service; social media
Pengembangan Integrasi Budidaya Ikan Lele Dan Tanaman Herbal Di UPR Doa Mandeh
Authors: Fitrani Mirna , Mukti Retno Cahya , Fatmawati Fatmawati , Yonarta Danang
Published: May 2024

The catfish cultivation business carried out by UPR Doa Mandeh since 2015 still requires support in the form of assistance and training for its development. Meanwhile, the availability of fish seeds in South Sumatra is still very dependent on other regions, such as Lampung, Jambi and West Java. The lack of use of appropriate catfish cultivation technology and the use of commercial feed has an impact on the low production of fish seeds produced. Apart from that, there has been no effort to treat waste water which has the potential to have a negative impact on the surrounding environment. For this reason, community service (PPM) is carried out, which applies lecture materials, research and publications that have been carried out by the proposing team in the form of application of biofloc technology, making liquid fertilizer and cultivating herbal plants. The aim and benefits of carrying out this activity are to develop the catfish cultivation business, increase seed production, utilize waste water from catfish rearing media into liquid fertilizer products that can be used to develop herbal plant cultivation which will ultimately increase the income of cultivators at UPR Doa Mandeh. The activity model is in the form of empowerment, development and assistance which is implemented using counseling, training and technical/production assistance methods. The results of this activity are high survival and growth rates for catfish, water quality is in the optimal range, and the richness of nutrients in wastewater from the biofloc system can be used as liquid fertilizer for herbal plants.    Keywords: biofloc; catfish; herbal plants; liquid fertilizer
Pemanfaatan Aplikasi Untuk Memberikan Diagnosa Awal Penyakit Gigi Dan Mulut Pada Ins Dental Care
Authors: Sovia Rini , Ardiansyah Ricki , Rani Maha
Published: May 2024

Technological developments in various fields continue to increase, one of which is in the health sector, namely the use of applications to provide initial diagnoses of dental and oral diseases. Lack of public awareness and knowledge in maintaining oral health can give rise to various kinds of diseases, some of which can be cured with proper treatment. One way that can be done to prevent this disease is by providing education to the public by using a web-based application. The PKM team held activities at Ins Dental Care. The method used in this activity is training in the use of applications for early diagnosis of dental and oral diseases with the participants being doctors and nurses. The aim of this service activity is to provide knowledge to participants about applications that can be used by participants to provide initial diagnoses of dental and oral diseases so that later participants can easily obtain information about dental and oral diseases. With this application, Ins Dental Care can easily provide education to the public about dental health and reach local communities to provide education about dental health and dental disease. By utilizing a web application for early diagnosis of dental and oral diseases, people can obtain information on diagnosing dental diseases independently without having to come to the clinic.    Keywords: training; application; diagnosis; dental and oral diseases
Pelatihan Meningkatkan Penguasaan Mufrodat Bahasa Arab dengan Metode Bernyanyi di TK Al Munawwar Panyabungan Mandailing Natal
Authors: Ritonga Nur'ainun , Daulay Irmasani , Rosada Bintang , Gamasari Rita
Published: May 2024

The purpose of the Community Service activity conducted by the STAIN Mandailing Natal Arabic Language and Literature lecturer team at Al Munawwar Kindergarten is to enhance students' vocabulary mastery (Mufrodat) through the singing method. This training took place over one day and was attended by 21 students. The method employed is the Eclectic method (Intiqoiyyah). The activity comprised several stages, including opening, educational games, core activities, evaluation, rewards presentation, and closing. The results obtained from this activity indicate an improvement in students' vocabulary mastery (Mufrodat) through the application of the singing method. This is evident from the students' enthusiasm during the learning process and their ability to respond to questions during the evaluation stage.Keyword: singing methods, mufrodat, arabic AbstrakTujuan dari kegiatan Pengabdian Masyarakat yang dilakukan oleh tim dosen Bahasa dan sastra arab STAIN Mandailing Natal di sekolah TK Al Munawwar adalah untuk meningkatkan kemampuan penguasaan kosa kata (Mufrodat) melalui metode bernyayi. Pelatihan ini dilaksanakan dalam waktu 1 (satu) hari dan diikuti oleh 21 Siswa. Adapun metode yang digunakan dalam proses pelatihan yaitu metode Elektik (Intiqoiyyah). Beberapa tahapan kegiatan yaitu, pembukaan, Game edukatif, kegiatan inti, evaluasi, pemberian reward dan penutup. Sedangkan  hasil yang diperoleh dari kegiatan ini yaitu adanya  peningkatan penguasaan kosa kata (Mufrodat) siswa dengan penggunaan metode bernyanyi, hal ini dibuktikan dengan antusias para siswa dalam proses pembelajaran dan kemampuan mereka dalam menjawab pertanyaan yang diberikan pada tahap Evaluasi.  Keyword: metode bernyayi, mufrodat, bahasa arab
Accounting for Empowered Organizations in an Era of Competitive Intensity and the Age of Creative Intensification: The Case for Strategic Collaborative Accounting (SCA)
Authors: Davidson Israel Nonyerem
Published: May 2024

This paper discusses the evolution of management accounting and proposes a new approach, Strategic Collaborative Accounting, to ensure its continued relevance in the face of changing business landscapes. With the shifting dynamics of future organizations characterized by complex stakeholder relationships, technological advancements, and evolving business models, traditional management accounting faces challenges in maintaining its significance. The paper suggests that future management accounting practices will involve shared responsibilities among professionals, focusing on building trust, managing risks, and supporting collaborative relationships. It predicts a reduction in finance department size, disappearance of traditional bookkeeping roles, and closer integration of accounting functions with operational teams. By advocating for Strategic Collaborative Accounting, the paper aims to empower organizations to adapt, compete, and innovate effectively in the future business environment.
Between the Ocean and the Ground: Giving Surfaces
Authors: Martell James
Published: May 2024

Beginning right at the start of the recently published volume II of Donner le temps, at its ‘bord’ or ‘boarding’ upon or out of a calmy oceanic surface, this essay examines the functions and movements of distinct surfaces in between Heidegger and Derrida. Confronting thus the tradition of the ‘Grund’, ‘Abgrund’, ‘Urgrund’, ‘Ungrund’, with the khôra-like surface of archi-writing and dissemination, the essay proposes an investigation of the philosophical and writerly space of Derrida/Heidegger not through their marks and letters, but instead through the different surfaces of inscription and – simultaneous – effacement as the ‘proper places’ of thought and experience, of Destruktion and deconstruction.
The Rituals of Mourning: Éilís Ní Dhuibhne’s ‘The Coast of Wales’, or Why It Is Important to Perform Grief
Authors: González-Arias Luz Mar
Published: May 2024

This essay explores Éilís Ní Dhuibhne’s short story ‘The Coast of Wales’ (2015), which describes a widow’s visit to her husband’s grave in a cemetery near Dublin. Although taking the reader to the dark recesses of grief, the author infuses her characteristic humour in her narrator-protagonist, to the point that this becomes a story of hope and renewal as much as of pain and mourning. This essay will focus on the performativity and ritualisation of grief and on how the social conventions around death intersect with the personal experience of mourning. Understanding bereavement as both an individual and a collective process, rather than as a medical condition, I focus on the story’s inscription of colour, elements of the animal and natural world, and landscape to generate a glimpse of healing within the experience of emotional distress. Working within a Medical Humanities framework, the analysis is necessarily interdisciplinary, making use of literary criticism, memoir, medical, and psychological literature alike.
Urchar Bodaigh i bPoll Móna (‘A Random Shot’) and Other Irish Sayings
Authors: Catháin Séamas Ó
Published: May 2024

This article engages with various Irish phrases and sayings such as urchar bodaigh i bpoll móna (‘a random shot’) and demonstrates how particular terms have been lexicographically described by Dineen and Ó Donaill. Irish expressions have embodied terms with multiple meanings that contribute to the complexity of various expressions and how various terms can be paired together. Lexicographers note the widespread deployment of the words bod and bodach (and a range of related terms) to spawn, in various combinations, a swathe of terminology relating to aspects of the natural world and the firmament. The disparate and versatile lexical capacity of bod and bodach and their derivatives adumbrated in botanical, icthyological, ornithological, meteorological and astronomical nomenclature is quite striking, not least because of its sexual dimensions.
Saint na Cléire mar Mhóitíf sa Traidisiún Béil
Authors: Héalaí Pádraig Ó
Published: May 2024

This article discusses aspects of anticlericalism as portrayed in Irish oral tradition. The Roman Catholic clergy are seen to have power not only within the performance of their official duties but were also understood to have control over supernatural beings and to possess curative capacities in matters of prophecy and damnation. The article places the clergy in their social context describing, among other factors, how they were separated from ordinary people. Criticism of the clergy was expressed in popular verse, proverb and tale and by these means, the community assisted in forming the perception of clergy. Poets were independent of the clergy as they felt they could criticise them in the vernacular verse of the people. Dissatisfaction expressed in verse commented on their fine living while, at the same time, realising the need for their service. Mocking is frequently a means of expressing discontent and in oral tradition, a particular trait associated with the clergy is that of miserliness. The author cites examples of tales and proverbs depicting priests’ greed and avarice. Such sayings and verses might be seen to indicate people were independent of the clergy, especially at a time when Irish was the general vernacular in Ireland. These sayings, verses and tales are part of a ‘vehicle for social protest’. The essay suggests that the aetiological tales offering reasons for the avarice of priests helped to reconcile general popular empathy with the clergy.
Best and Other Friends: A Creative Essay
Authors: Wulff Helena
Published: May 2024

With Éilís Ní Dhuibhne’s bildungsroman, The Dancers Dancing, as a point of departure, this creative essay opens with the protagonist Orla, who is somewhat plump and awkward, and her close friendship with the more sophisticated Aisling. They are in their early teens in the novel, which is set in the Donegal Gaeltacht, where they are a part of a group of girls and boys spending a month learning the Irish language and culture including dancing at a céilí. The essay moves on to imagine Orla and her changing friendships as an adult, both briefly as a Masters student in Creative Writing at the University of East Anglia and then as an assistant professor at Trinity College. The focus is on Orla’s friendships as an acclaimed writer of fiction. This entails making new friends and colleagues in Ireland’s literary world, but also includes intrigue, inspired by Ní Dhuibhne’s novel Fox, Swallow, Scarecrow and short story ‘A Literary Lunch’. With Orla’s success – and her prominence as a literary critic – comes envy and loss of a friend who used to support her. As an antidote against such intrigue, Orla appreciates her close friendship with Emily, even as she moves abroad, and they are left to communicate online via Skype. Eventually, Orla finds Aisling on Facebook and they reunite in the shelter of old friends from the past.
Direct multi-fidelity integration of 3D CFD models in a gas turbine with numerical zooming method
Authors: Deng Weimin , Wei Zuojun , Ni Ming , Gao Haotian , Ren Guangming
Published: May 2024

Multi-fidelity simulation improves the simulation accuracy and captures more detailed information about aero engines under limited computing resources, which is implemented by coupling different levels of models using numerical zooming methods. However, there is an obvious problem in traditional zooming methods such as the iterative coupled zooming method or mini-map method: both the convergence and accuracy depend highly on the component general characteristic maps. Based on the investigation of a micro gas turbine, a direct zooming method (Cycle with CFD in it, CWCFD) is developed. It directly embeds the 3D CFD compressor and turbine model into a 0D component-level model without component general characteristic maps. Then, the CWCFD zooming method is compared with the traditional 0D component-level model in terms of the throttle characteristics of the micro gas turbine, and the experimental data of the ground test is performed to verify the effectiveness of the CWCFD zooming methods. The results indicate that the CWCFD zooming method matches well with the test data better than the traditional 0D component-level model.
ANALYSIS OF THE CONSTRUCTION SECTOR AND ROLE IN GROSS REGIONAL DOMESTIC PRODUCT (GRDP) IN JAMBI PROVINCE
Authors: suherman suherman , Haryadi Haryadi , Zulfanetti Zulfanetti , Syaparuddin Syaparuddin
Published: May 2024

This research aims to examine and analyze the Gross Regional Domestic Product (GRDP) potential of the construction sector in Jambi Province and its influence on the GRDP of the construction sector. Analysis tools Location Quotient (LQ), Dynamic Location Quotient (DLQ), typology klassen, panel data regression. Quantitative data type via website: https://jambi.bps.go.id and qualitative data via Google Form link software application. The results of research on the GRDP potential of the construction sector in Jambi Province, the non-based sector, is not prospectively advanced but is under pressure. Kerinci Regency, Bungo and Jambi City are prospective base sectors that are rapidly advancing and growing. Merangin Regency, Tebo and Sungai Penuh City are prospective developing sectors. Sarolangun Regency's basic sector is not prospective for development. East Tanjung Jabung Regency and West Tanjung Jabung Sectors are not a forward prospective basis but are emphasized. Batanghari Regency, the non-base sector has no prospective development. Muaro Jambi Regency, the non-prospective non-based sector is relatively lagging behind. Partial test results for construction workers, capital expenditure have a positive and insignificant effect, while the construction cost index has an insignificant negative effect, while for construction service business entities, the human development index has a significant positive effect on the Gross Domestic Product (GDP) of the construction sector and the simultaneous test results obtained R2 72.05%.
The future of cancer therapy: exploring the potential of patient-derived organoids in drug development
Authors: Avci Cigir Biray , Bagca Bakiye Goker , Shademan Behrouz , Takanlou Leila Sabour , Takanlou Maryam Sabour , Nourazarian Alireza
Published: May 2024

Cancer therapy is on the brink of a significant transformation with the inclusion of patient-derived organoids (PDOs) in drug development. These three-dimensional cell cultures, directly derived from a patient’s tumor, accurately replicate the complex structure and genetic makeup of the original cancer. This makes them a promising tool for advancing oncology. In this review, we explore the practical applications of PDOs in clinical drug screening and pharmacognostic assessment, as well as their role in refining therapeutic strategies. We provide insights into the latest advancements in PDO technology and its implications for predicting treatment responses and facilitating novel drug discoveries. Additionally, we address the operational challenges associated with incorporating PDOs into the drug development process, such as scaling up organoid cultures, ensuring consistent results, and addressing the ethical use of patient-derived materials. Aimed at researchers, clinicians, and key stakeholders in oncology, this article aims to succinctly present both the extraordinary potential and the obstacles to integrating PDOs, thereby shedding light on their prospective impact on the future of cancer treatment.
Type 2 diabetes mellitus aggravates coronary atherosclerosis in hypertensive individuals based on coronary CT angiography: a retrospective propensity score-based study
Authors: Jiang Yu , Yang Zhi-gang , Wang Jin , Jiang Li , Han Pei-lun , Shi Rui , Li Yuan
Published: May 2024

Background

The effect of type 2 diabetes mellitus (T2DM) on coronary atherosclerosis detected on coronary computed tomography angiography (CCTA) in hypertensive patients has attracted increasing attention. This study investigated the relationships of T2DM with coronary artery plaque characteristics and semiquantitative CCTA scores in hypertensive patients.

Materials and methods

In this single-center study, 1,700 hypertensive patients, including 850 T2DM [HT(T2DM+)] and 850 non-T2DM [HT(T2DM−)] individuals, were retrospectively analyzed after propensity matching. Plaque type, extent, coronary stenosis, segment involvement score (SIS), segment stenosis score (SSS), and CT-based Leaman score (CT-LeSc) based on CCTA were assessed and compared between the two groups.

Results

HT(T2DM+) patients had more coronary segments with calcified plaque (2.08 ± 2.20 vs. 1.40 ± 1.91), mixed plaque (2.90 ± 2.87 vs. 2.50 ± 2.66), nonobstructive stenosis (4.23 ± 2.44 vs. 3.62 ± 2.42), and obstructive stenosis (1.22 ± 2.18 vs. 0.78 ± 1.51), a lower proportion of 1-vessel disease (15.3% vs. 25.5%), a higher proportion of 3-vessel disease (59.6% vs. 46.7%), and higher SIS (5.5 ± 3.1 vs. 4.4 ± 3.0), SSS (10.3 ± 8.5 vs. 7.7 ± 7.1), and CT-LeSc (9.4 ± 5.6 vs. 7.9 ± 5.2) than HT(T2DM−) patients (all P-values <0.05). Multivariable analysis revealed that T2DM was an independent risk factor for calcified plaque [odds ratio (OR) = 2.213], obstructive coronary artery disease (CAD) (OR = 1.271), multivessel disease (OR = 1.838), SIS > 4 (OR = 1.910), SSS > 6 (OR = 1.718), and CT-LeSc > 5 (OR = 1.584) in hypertension population (all P-values <0.05).

Conclusion

T2DM was independently associated with the presence of calcified coronary artery plaque and increased the risk of obstructive CAD, multivessel disease, and CT-LeSc > 5 in hypertensive patients. More attention should be given to the assessment and management for coronary atherosclerosis in hypertensive patients with T2DM, as this population may have a higher risk of cardiovascular events.
Urine high–sensitive troponin I in children cannot offer an applicable alternative to serum
Authors: Bakoš Matija , Dilber Daniel , Jazbec Anamarija , Svaguša Tomo , Potkonjak Ana-Meyra , Braovac Duje , Đurić Željko , Radeljak Andrea , Lončar Vrančić Ana , Vraneš Hrvoje , Galić Slobodan , Novak Milivoj , Prkacin Ingrid
Published: May 2024

Introduction

In children, congenital heart defects represent the primary cause of increased serum troponin I. The elimination process of cardiac troponin I from the bloodstream and the factors influencing this process remain unknown. The objective of this study was to explore the role of troponin I as an indicator of cardiac damage in children both in serum and urine, a concept previously investigated in adults.

Methods

Our prospective study involved 70 children under 24 months of age. The first group underwent ventricular septal defect repair, while the second group involved children who had undergone partial cavopulmonary anastomosis. For these groups, urine and serum troponin I were assessed on four occasions. The third group, consisting of healthy children, underwent a single measurement of urine troponin I.

Results

Serum troponin I values exhibited an expected elevation in the early postoperative period, followed by a return to lower levels. Significantly higher concentrations of serum troponin I were observed in the first group of children (p < 0.05). A positive correlation was found between troponin I in the first three measurements and cardiopulmonary bypass and aortic cross-clamping time. There was no discernible increase in urine troponin I directly related to myocardial damage; troponin I couldn't be detected in most urine samples.

Discussion

The inability to detect troponin I in urine remains unexplained. Potential explanatory factors may include the isoelectric point of troponin I, elevated urinary concentrations of salts and urea, variations in urine acidity (different pH levels), and a relatively low protein concentration in urine.
Innovative model predictive control for HVDC: circulating current mitigation and fault resilience in Modular Multilevel converters
Authors: Bhutto Muhammad Uzair , Soomro Jahangeer Badar , Ali Khawaja Haider , Memon Abdul Aziz , Ansari Jamshed Ahmed , Alamri Basem , Alqarni Mohammed
Published: May 2024

This study presents an advanced Model Predictive Control (MPC) technique designed to mitigate Circulating Current (CC) in HVDC systems equipped with Modular Multilevel Converters (MMC). This MPC strategy eliminates the need for traditional PI regulators and pulse width modulation, improving system dynamics and control accuracy. It excels in managing output currents and mitigating voltage fluctuations in sub-module capacitors. Moreover, the paper introduces a novel communication-free Fault Ride-Through (FRT) method that makes a DC chopper redundant, enabling rapid recovery from disturbances. To reduce the computational burden of standard MPC algorithms, an aggregated MMC model is proposed, significantly decreasing the computational complexity. Simulation studies validate the new MPC algorithm’s capability in regulating AC side current, reducing CC, and ensuring capacitor voltage stability under varying conditions. The findings indicate that the proposed MPC controller outperforms traditional PI and PR-based methods, offering enhanced dynamic response, decreased steady-state error, and lowered converter losses, which contribute to smoother DC link voltages. Future research will focus on system scalability, renewable energy integration, and empirical validation through hardware-in-the-loop testing.
Enhanced bi-level optimal scheduling strategy for distribution network with multi-microgrids considering source-load uncertainties
Authors: Li Guoliang , Lin Xia , Kong Lingyuan , Xia Wenhua , Yan Shuang
Published: May 2024

With the increasing integrations of renewable energy resources into distribution networks (DNs) and microgrids (MGs), the imperative for an effective market scheduling mechanism becomes paramount to enhance the operational safety, reliability, and economic efficiency of distribution grids. Taking advantage of bi-level programming theory, this study meticulously formulates a comprehensive optimization scheduling model for the multi-MGs distribution network. The upper-level optimization objective is to minimize both the operational losses and total costs of the DN. Concurrently, the lower-level optimization pursues the maximization of daily operational revenue for MGs. Recognizing the pervasive impact of the inherent uncertainty associated with renewable energy sources on system safety and reliability, a cutting-edge scenario-based stochastic planning framework is introduced. The methodology integrates a heuristic matrix matching approach to effectively handle the intricate challenges posed by uncertainties from wind and photovoltaic generations. Moreover, in addressing the proposed nonlinear models, a sophisticated method is employed, utilizing the second-order cone relaxation and linearization methods. These methods meticulously transform the upper and lower-level models into second-order cone planning and mixed-integer linear programming issues, respectively. Finally, the proposed methodologies are rigorously scrutinized and validated with intricate case studies, providing a nuanced understanding of their efficacy. The empirical results underscore the theoretical feasibility and superiority of the proposed scheduling scheme. Notably, the operational performance of the DN as well as the economic viability of multiple MGs can also be significantly improved.
Enhancing the efficiency of polypyrrole-dodecylbenzene sulfonic acid in-tube solid-phase microextraction coating for analysis of nitrogen-containing pesticides in water environments
Authors: Ma Rong , Yu Shuangshuang , Li Yafang , Lin Yan , Ma Xiaodong
Published: May 2024

Background: With the growing use of nitrogen-containing pesticides in agriculture, their residues in the environment have raised significant public health concerns.

Objective: This study aimed to develop a novel PPy-DBSA/IT-SPME coating to enhance the detection efficiency of polar nitrogen-containing pesticides in water matrices.

Methods: The preparation conditions were optimized, including pyrrole concentration at 7.0 mol/L, DBSA concentration at 0.014 mol/L, oxidant concentration at 0.35 mol/L, and a coating cycle repeated 10 times. High-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was employed for detection.

Results: The novel coating effectively adsorbed 19 different categories of polar nitrogen-containing pesticides, including sulfonylureas, triazolopyrimidines, diphenyl ether herbicides, benzoylurea insecticides, and phenylurea herbicides, with unadsorbed rates below 10%. The analytical method achieved an average recovery rate of 61.92% to 115.21%, with an RSD below 5.0%. Detection and quantification limits ranged from 0.012 to 0.524 μg/L and 0.127 to 5.243 μg/L, respectively.

Conclusion: The developed method is green, efficient, simple, and cost-effective. It offers an environmentally friendly and user-friendly approach for the detection of polar nitrogen-containing pesticide residues, demonstrating good recovery and precision. This method holds potential for wide application in environmental monitoring and food safety.
Untying the nexus between environmental information disclosure, green finance, and green technological innovation: a multi-analytical (SEM-ANN) approach
Authors: Feng Jiaying , Yu Cheng , Xufeng Wu
Published: May 2024

Environmental information disclosure (EID) is integral to government environmental policies and corporate social responsibilities. The current research presents a theoretical model that analyses the connection between EID, green finance, and green technological innovation (GTI). The required data was collected through a structured questionnaire, and final data analysis was performed using 230 valid responses. Structural equation modeling (SEM) combined with artificial neural networks (ANN) is used in the present framework to analyze constructs’ linear and non-linear relationships. The empirical analysis found that government EID significantly improved the value of green securities (GS) and green credit (GC), aided considerably by enterprises’ openness about environmental practices. Green securities and GC are also used, which has a good impact on the development of GTI. Green financing is critical when linking environmental disclosure with green technologies in businesses. The results reveal the mediating role of GC and GS in the relationship between the two aspects of EIDs (EEID and GEID) and GTI, providing a new perspective on how EID influences GTI through financial mechanisms. The findings contribute to a more comprehensive understanding of the intricate interplay between EID, green finance, and GTI, providing valuable insights for policymakers, businesses, and investors working toward sustainable development.
Genetic diversity and haplotype distribution patterns analysis of cytb and RAG2 sequences in Rana hanluica from southern China
Authors: Deng Zeshuai , Li Yuan , Gao Zhiwei , Zhang Zhiqiang , Yang Daode
Published: May 2024

Rana hanluica: an endemic amphibian of China, is found in the hills and mountains south of the Yangtze River. In this comprehensive study, we collected 162 samples from 14 different localities to delve into the genetic diversity of Rana hanluica using mitochondrial Cytb and nuclear RAG2 as genetic markers. Our findings reveal that the Nanling Mountains, specifically regions like Jiuyi Shan, Jinggang Shan, Mang Shan, and Qiyun Shan, are genetic hotspots harboring remarkable diversity. The research results also indicate that there is gene flow among the various populations of the species, and no distinct population structure has formed, which may be due to migration. Moreover, populations in some regions, as well as the overall population, show signs of a possible genetic bottleneck, which we speculate may have been caused by climate change. However, given the exploratory nature of our study, further investigations are warranted to confirm these observations. Through phylogenetic analyses, we uncovered indications that R. hanluica might have originated within the Nanling region, dispersing along the east-west mountain ranges, with a significant contribution originating from Jiuyi Shan. The genetic distributions uncovered through our research reflect historical migratory patterns, evident in the distinct haplotypes of the RAG2 gene between the western and eastern parts of the studied area. Moreover, Heng Shan and Yangming Shan exhibited unique genetic signatures, possibly influenced by geographic isolation, which has shaped their distinct genotypes. The insights gained from this study hold profound implications for conservation efforts. By identifying regions rich in genetic diversity and crucial gene flow corridors, we can develop more effective conservation strategies. Preserving these genetically diverse areas, especially within the Nanling Mountains, is vital for maintaining the evolutionary potential of R. hanluica. In conclusion, our research has laid a solid foundation for understanding the genetic landscape of R. hanluica, shedding light on its origins, population structures, and evolutionary trajectories. This knowledge will undoubtedly guide future research endeavors and inform conservation strategies for this endemic amphibian.
Clinical usefulness of presepsin and monocyte distribution width (MDW) kinetic for predicting mortality in critically ill patients in intensive care unit
Authors: Agnello Luisa , Ciaccio Anna Maria , Ben Fabio Del , Gambino Caterina Maria , Scazzone Concetta , Giglia Aurora , Biundo Giuseppe , Cortegiani Andrea , Sasso Bruna Lo , Ciaccio Marcello
Published: May 2024

Background

In this study, we explored the accuracy of two new sepsis biomarkers, monocyte distribution width (MDW) and presepsin (PSP), compared to traditional ones, C-reactive protein (CRP) and Procalcitonin (PCT), to identify sepsis and predict intra-hospital mortality by analyzing their kinetic at different time points during hospitalization stay.

Methods

We enrolled 104 patients admitted to the intensive care unit (ICU) of University Hospital “Paolo Giaccone”, Palermo. Among these, 30 (29%) had a clinical diagnosis of sepsis. MDW, PCT, CRP, and PSP were evaluated at admission (T0), after 24 h (T24), 48 h (T48), 72 h (T72), at day 5 (T5), and at discharge (TD).

Results

Patients with sepsis displayed higher levels of PCT and PSP than patients without sepsis at each timepoint; differently, CRP displayed statistically significant differences only at T0, while MDW only at T0 and T24. Patients with increasing levels of PSP displayed lower median survival time than patients with decreasing levels; differences reached statistical significance only at 48 h (20 vs. 29 days, log rank test, p = 0.046). Interestingly, PSP was an independent predictor of ICU mortality at 48 and 72 h after hospital admission. Also, the kinetic of PSP had prognostic value, with increased values at 48 h after admission being associated with reduced survival.

Conclusion

Our findings support the role of PSP and its kinetic as a predictor of ICU mortality.
Variants of SLC39A4 cause acrodermatitis enteropathica in Tibetan, Yi, and Han families in Sichuan region of southwestern China: a case report series
Authors: Li Zhongtao , Wang Sheng
Published: May 2024

Acrodermatitis enteropathica (AE, OMIM 201100) is a rare autosomal recessive dermatosis characterized by periorificial dermatitis, diarrhea, alopecia, and hypozincaemia due to pathogenic variants of SLC39A4. Herein, we present a case series describing four unrelated patients with AE from Han, Yi, and Tibetan ethnicities in Sichuan region of southwestern China, speculate the hotspot variants of SLC39A4 causing AE in Sichuan region and highlight physicians should be alerted to unusual presentations of AE, such as the absence of hypozincaemia and the presence of acne-like lesions. Serum alkaline phosphatase and genetic testing should be considered to accurately evaluate the zinc deficiency in human body and help make the correct diagnosis.
Quantitative radiomics analysis of imaging features in adults and children Mycoplasma pneumonia
Authors: Meng Huan , Wang Tian-Da , Zhuo Li-Yong , Hao Jia-Wei , Sui Lian-yu , Yang Wei , Zang Li-Li , Cui Jing-Jing , Wang Jia-Ning , Yin Xiao-Ping
Published: May 2024

Purpose

This study aims to explore the value of clinical features, CT imaging signs, and radiomics features in differentiating between adults and children with Mycoplasma pneumonia and seeking quantitative radiomic representations of CT imaging signs.

Materials and methods

In a retrospective analysis of 981 cases of mycoplasmal pneumonia patients from November 2021 to December 2023, 590 internal data (adults:450, children: 140) randomly divided into a training set and a validation set with an 8:2 ratio and 391 external test data (adults:121; children:270) were included. Using univariate analysis, CT imaging signs and clinical features with significant differences (p < 0.05) were selected. After segmenting the lesion area on the CT image as the region of interest, 1,904 radiomic features were extracted. Then, Pearson correlation analysis (PCC) and the least absolute shrinkage and selection operator (LASSO) were used to select the radiomic features. Based on the selected features, multivariable logistic regression analysis was used to establish the clinical model, CT image model, radiomic model, and combined model. The predictive performance of each model was evaluated using ROC curves, AUC, sensitivity, specificity, accuracy, and precision. The AUC between each model was compared using the Delong test. Importantly, the radiomics features and quantitative and qualitative CT image features were analyzed using Pearson correlation analysis and analysis of variance, respectively.

Results

For the individual model, the radiomics model, which was built using 45 selected features, achieved the highest AUCs in the training set, validation set, and external test set, which were 0.995 (0.992, 0.998), 0.952 (0.921, 0.978), and 0.969 (0.953, 0.982), respectively. In all models, the combined model achieved the highest AUCs, which were 0.996 (0.993, 0.998), 0.972 (0.942, 0.995), and 0.986 (0.976, 0.993) in the training set, validation set, and test set, respectively. In addition, we selected 11 radiomics features and CT image features with a correlation coefficient r greater than 0.35.

Conclusion

The combined model has good diagnostic performance for differentiating between adults and children with mycoplasmal pneumonia, and different CT imaging signs are quantitatively represented by radiomics.
Impact of intense sanitization procedures on bacterial communities recovered from floor drains in pork processing plants
Authors: Bosilevac Joseph M. , Guragain Manita , Barkhouse Darryll A. , Velez Sarah E. , Katz Tatum S. , Lu Guoqing , Wang Rong
Published: May 2024

Background

Pork processing plants in the United States (US) cease operations for 24–48 h every six or twelve months to perform intense sanitization (IS) using fogging, foaming, and further antimicrobial treatments to disrupt natural biofilms that may harbor pathogens and spoilage organisms. The impact such treatments have on short-term changes in environmental microorganisms is not well understood, nor is the rate at which bacterial communities return.

Methods

Swab samples were collected from floor drains to provide representative environmental microorganisms at two US pork processing plants before, during, and after an IS procedure. Samples were collected from four coolers where finished carcasses were chilled and from four locations near cutting tables. Each sample was characterized by total mesophile count (TMC), total psychrophile count (TPC), and other indicator bacteria; their biofilm-forming ability, tolerance of the formed biofilm to a quaternary ammonium compound (300 ppm, QAC), and ability to protect co-inoculated Salmonella enterica. In addition, bacterial community composition was determined using shotgun metagenomic sequencing.

Results

IS procedures disrupted bacteria present but to different extents depending on the plant and the area of the plant. IS reduced TPC and TMC, by up to 1.5 Log10 CFU only to return to pre-IS levels within 2–3 days. The impact of IS on microorganisms in coolers was varied, with reductions of 2–4 Log10, and required 2 to 4 weeks to return to pre-IS levels. The results near fabrication lines were mixed, with little to no significant changes at one plant, while at the other, two processing lines showed 4 to 6 Log10 reductions. Resistance to QAC and the protection of Salmonella by the biofilms varied between plants and between areas of the plants as well. Community profiling of bacteria at the genus level showed that IS reduced species diversity and the disruption led to new community compositions that in some cases did not return to the pre-IS state even after 15 to 16 weeks.

Discussion

The results found here reveal the impact of using IS to disrupt the presence of pathogen or spoilage microorganisms in US pork processing facilities may not have the intended effect.
The potential biological activities of Aspergillus luchuensis-aided green synthesis of silver nanoparticles
Authors: Abd Elghaffar Rasha Y. , Emam Amany M. , Taher Ehab S. , Baz Mohamed M. , Nayel Hamada , Abdeen Ahmed , El-Nablaway Mohammad , Alwutayd Khairiah M. , Mihaela Ostan , Ioan Banatean-Dunea , Khattab Abeer A. , Al‑Serwi Rasha H. , Sehim Amira E.
Published: May 2024

Biosynthetic metals have attracted global attention because of their safety, affordability, and environmental friendliness. As a consequence, the cell-free filtrate (CFF) of Dill leaf-derived endophytic fungus Aspergillus luchuensis was employed for the extracellularly synthesis silver nanoparticles (AgNPs). A reddish-brown color shift confirmed that AgNPs were successfully produced. The obtained AgNPs were characterized by UV–Vis (ultraviolet–visible spectroscopy), Transmission electron microscopy (TEM), FTIR, EDX, and zeta potential. Results demonstrated the creation of crystalline AgNPs with a spherical shape at 427.81 nm in the UV–Vis spectrum, and size ranged from 16 to 18 nm as observed by TEM. Additionally, the biogenic AgNPs had a promising antibacterial activity versus multidrug-resistant bacteria, notably, S. aureus, E. coli, and S. typhi. The highest growth reduction was recorded in the case of E. coli. Furthermore, the biosynthesized AgNPs demonstrated potent antifungal potential versus a variety of harmful fungi. The maximum growth inhibition was evaluated from A. brasinsilles, followed by C. albicans as compared to cell-free extract and AgNO3. In addition, data revealed that AgNPs possess powerful antioxidant activity, and their ability to scavenge radicals increased from 33.0 to 85.1% with an increment in their concentration from 3.9 to 1,000 μg/mL. Furthermore, data showed that AgNPs displayed high catalytic activity of safranin under light irradiation. The maximum decolorization percentage (100%) was observed after 6 h. Besides, the biosynthesized AgNPs showed high insecticidal potential against 3rd larval instar of Culex pipiens. Taken together, data suggested that endophytic fungus, A. luchuensis, is an attractive candidate as an environmentally sustainable and friendly fungal nanofactory.