bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Company Resources and Environmental Conditions on Export Performance through Firms’ Export Market Orientation and Marketing Capabilities
Authors: Giovanis Apostolos , Athanasopoulou Pinelopi , Kallivokas Dimitris , Gikas Grigorios
Published: January 2025

The purpose of this study is to use the resource-based view and contingency theory to examine the relationships between export market orientation (EMO), marketing capabilities (MKTC), and export performance (EP). Additionally, we analyze the effects of company resources (size, years of exporting activity, number of foreign markets served, and the existence of an export department) and environmental conditions (market turbulence and competitive intensity) on export market orientation. The proposed model and research hypotheses are tested using a partial least squares path methodology, with data collected from 249 Greek exporting companies. Results indicate that all company resources, except the years of exporting activity, and both environmental conditions influence EMO and that EMO determines EP both directly and indirectly through MKTC. These results extend previous empirical findings on the role of EMO in the Greek market and provide valuable insights on the effects of both internal and external conditions on the strategic behavior of exporting companies, that can help firms improve their export performance.
Meslek Hastalıkları Epidemiyolojisi ve Çalışan Sağlığında Sürdürülebilirlik
Authors: Keleş Emre , Daysal Güler Burcu , Çalmaz Ayşe , Özkınalı Sevil , Comba Arzu , Çiçek Güner
Published: January 2025

Sürdürülebilir Kalkınma Hedefleri Odağında Meslek Hastalıklarına Kavramsal Bakış
Gülay YILMAZEL
Dünyada ve Türkiye’de Meslek Hastalıklarının Güncel Durumu
Emre KELEŞ
Yeni Ortaya Çıkan Meslek Hastalıkları
Gülay YILMAZEL
İklim Değişikliği ve Meslek Hastalıkları
Burcu DAYSAL GÜLER
Gülay YILMAZEL
Meslek Hastalıkları Epidemiyolojisinde Dezavantajlı Gruplar
Ayşe ÇALMAZ
Meslek Hastalıklarında Epidemiyolojinin Kullanımı
Gülay YILMAZEL
Meslek Hastalıkları ve Mesleki Risk Faktörleri
Sevil ÖZKINALI
Tütün Ürünlerinin Kullanımı ve Meslek Hastalıkları İlişkisi
Gülay YILMAZEL
Bağımlılık Türleri ve Meslek Hastalıkları İlişkisi
Burcu DAYSAL GÜLER
Meslek Hastalıklarında Sağlık Taramaları ve Önemi
Ayşe ÇALMAZ
Sağlıklı ve Kaliteli Yaşam Hedefinde KronikHastalık Taramaları
Gülay YILMAZEL
Kanser Taramaları
Emre KELEŞ
Çalışan Sağlığının Geliştirilmesi Temelinde Erişkin Dönemde Bağışıklama
Gülay YILMAZEL
Çalışanlarda Beslenme ve Sağlığın Geliştirilmesi
Arzu COMBA
Çalışan Sağlığının Geliştirilmesinde Fiziksel Aktivitenin Önemi
Güner ÇİÇEK
Çalışan Sağlığında Stres, Stresle Baş Etme Yöntemleri ve Uyku
Ayşe ÇALMAZ
Meslek Hastalıkları ve Sağlık Politikaları
Ayşe ÇALMAZ
Burcu DAYSAL GÜLER
Emre KELEŞ
Deviantolojiye Giriş
Authors: Özen Yener
Published: January 2025

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Diagnóstico y estrategias terapéuticas de la Enfermedad de Graves Basedow
Authors: Sangucho Chicaiza Estefanía Gissela , Naranjo Perugachi Jeaneth Del Carmen
Published: January 2025

Introducción: La Enfermedad de Graves (EG) es un trastorno autoinmune a nivel de la glándula tiroides caracterizada por la hipersecreción de hormonas lo que conlleva a su presentación mediante una notable triada de Merserbur, su incidencia es en aproximadamente el 2% de la población siendo mayor en mujeres con respecto a los hombres. Su diagnóstico debe ser de manera oportuna y se puede realizar por medio de cuantificación de los valores del perfil tiroideo y una ecografía tiroidea, el esquema terapéutico debe ser individualizado teniendo como finalidad mantener dentro de los rangos normales los valores de las hormonas tiroideas. Objetivo: Realizar una revisión bibliográfica para describir los métodos diagnósticos y las estrategias terapéuticas para la EG. Metodología: para la presente revisión bibliográfica se accedieron a diferentes bases de datos obteniendo un total de 60 artículos de acuerdo a los criterios de inclusión y exclusión se descartaron 35 artículos obteniendo un total de 25 fuentes de información bibliográfica entre artículos científicos, revisiones sistemáticas, metanalisis. Conclusión: al tratarse de una enfermedad autoinmune lo más importante en esta patología es un diagnóstico oportuno, para establecer un manejo de manera individualizada ya sea con fármacos antitiroideos, una terapia con yodo radioactivo o la realización de una tiroidectomía.
Actividad inhibitoria de los extractos de ajo, café, albahaca, orégano y romero contra bacterias patógenas
Authors: Pérez y Terrón Rocío , Hernández Celis Jessica Andrea , Chávez Hernández Etssuri
Published: January 2025

Una de las prácticas más importantes en México es el uso de plantas medicinales como una alternativa para el tratamiento de diferentes enfermedades, es una forma de aplicar la gran diversidad de plantas que se pueden encontrar en nuestro país. El objetivo del presente trabajo fue evaluar la actividad inhibitoria de las siguientes plantas: ajo (Allium sativum L.), café (Coffea arabica L.), albahaca (Ocimun basilicum L.), orégano (Origanum vulgaris L.) y romero (Rosmarinus officianalis L.) contra diferentes cepas bacterianas patógenas. Se elaboraron por destilación extractos vegetales acuosos, posteriormente se determinó la actividad inhibitoria por la técnica de turbidimetría en medio de cultivo líquido. Los resultados mostraron que los extractos de ajo y café fueron los más eficaces para inhibir diferentes tipos de cepas bacterianas Gram negativas y positivas, seguidos por albahaca, romero y orégano. Por otra parte, la cepa de Listeria monocytogenes presentó mayor resistencia al efecto de estos extractos. Los extractos vegetales utilizados son una buena alternativa para inhibir el crecimiento de bacterias patógenas.
El pensamiento innovador, el entorno VUCA y el cambio en las organizaciones
Authors: Quiches Pinto Jonathan , Pimentel Roque Victor Manuel , Mogollón Sandoval Oscar Jorge , Pimentel Tenorio Vania Nicole
Published: January 2025

El tema del presente ensayo tiene como título: “El pensamiento innovador, el entorno VUCA y el cambio en las organizaciones”. La importancia y relevancia justamente de estos contenidos (la innovación, análisis “VUCA” y el cambio organizacional), radica en que son aspectos fundamentales en el panorama empresarial actual, donde las organizaciones tienen que asumir una actitud proactiva y cada vez más estratégica a fin de adaptarse a las demandas que impone el mercado además para mantener su competitividad. El ensayo según el enfoque será del tipo de argumentativo toda vez que sustentará una idea a través de argumentos referenciados empleando un lenguaje conciso y objetivo con el propósito de que se comprenda su contenido ¿De qué manera el pensamiento innovador y el análisis del entorno “VUCA” han influenciado en el cambio organizacional de las empresas? será el problema de la presente investigación. Como herramienta de investigación se empleó la revisión de información en fuentes abiertas. Como conclusión del presente ensayo, inferimos que el pensamiento innovador y la comprensión del entorno “VUCA” son factores claves para desarrollar el cambio organizacional y la sostenibilidad empresarial en un escenario que está en permanente evolución. Las organizaciones que adoptan un enfoque innovador, saben gestionar la complejidad y se adelantan a los cambios van a tener mejores probabilidades para prosperar e incrementar su nivel de competitividad.
Relayout Area Divisi Oven dengan Metode Systematic Layout Planning (SLP) PT. XYZ
Authors: Gunawan Akilla Alfrets Deanoffa , Handy Febri Satoto
Published: January 2025

PT. XYZ is a manufacturing company engaged in the production of notebooks and chemicals. This study aims to improve production efficiency in the oven division of PT. XYZ, especially on the SS-29 oven machine, by implementing the Lean Manufacturing and Systematic Layout Planning (SLP) methods. This study begins with an analysis of initial conditions that show various wastes, including excess material transfer, waiting time, and inefficient operator movements. The SLP approach is used to analyze the initial layout and design alternative new layouts by considering the results of the Activity Relationship Chart (ARC) and space requirements. Lean Manufacturing functions to identify and reduce activities that do not provide added value in the production process. The results of implementing the new layout show a reduction in material transfer distance by 41.12%, which has a direct impact on time and energy efficiency. In addition, production cycle time is significantly reduced, increasing operator productivity. This new layout also reduces waste in terms of waiting and transportation, while supporting a more responsive workflow. As a recommendation, PT. XYZ needs to immediately implement a new layout by considering implementation costs and impacts on ongoing operations. Continuous adjustment of the layout is also recommended to ensure the solution remains relevant, as well as to serve as a basis for further research in evaluating long-term impact and implementation in other divisions.
DIGITAL FORENSIC ISSUES IN CLOUD ACCOUNTING: A COMPREHENSIVE REVIEW
Authors: Birla Aditi , Parwani Bhavna
Published: January 2025

Cloud Accounting is an emerging technology in an accounting field which is being widely adopted globally. It can be used by various kinds of organizations without requiring specific IT infrastructure, technical expertise, managerial overburden, storage capacity, data recovery, or privacy setup requirements. Traditional Computer Forensics focuses the identification, mitigation, and prevention of crimes and frauds generated by IT; however, this existing forensic tool is inadequate to address cybercrimes related to cloud accounting information. This literature paper aims to provide a comprehensive overview of existing research regarding challenges, methodologies and further advancement in digital forensics in cloud accounting. This review paper will seek foundation for future research, provides insights into challenges faced during investigating crimes in the cloud.
A STUDY OF FACTORS AFFECTING JOB SATISFACTION OF FOOD DELIVERY WORKERS- A COMPARISON BETWEEN MALE AND FEMALE WORKERS
Authors: Parashar Vardaan
Published: January 2025

This study examines the factors affecting job satisfaction among online food delivery workers in Ahmedabad, India. A survey was conducted with 75 delivery workers (53 male, 22 female) to understand the importance of various job satisfaction factors. Key factors like wages, working conditions, and company support emerged as most important for overall job satisfaction. However, a gender-based analysis found some differences - flexibility/autonomy and paid leaves were considered more important by female workers. The data suggests catering job policies to gender needs. Tailored incentives, flexible schedules, and expanded leave benefits for female workers could improve satisfaction. Regular feedback collection was recommended to understand worker needs. Further qualitative research is suggested to explore gender differences in more depth and study the impact of satisfaction on outcomes like productivity and retention. The findings provide implications for online delivery platforms to develop targeted strategies to attract, retain and motivate their diverse workforce through improved job satisfaction.
પોરબંદર જિલ્લાનું આંતરમાળખું
Authors: GHOSIYA KAPIL P.
Published: January 2025

કોઈ પણ વિસ્તારના ઝડપી વિકાસમાં આંતરમાળખું એક મહત્વનું પરીબળ છે. આંતર માળખાકીય સુવિધાઓમાં રોડ, રસ્તા, વીજળી, સિંચાઈ, બેન્કિંગ વગેરે બાબતોનો સમાવેશ થાય છે. પોરબંદર ગુજરાતના પશ્ચિમ ભાગમાં સ્થિત પૂર્વ કાઠિયાવાડ દ્વીપકલ્પનો એક ભાગ છે. જિલ્લામાં ૩ તાલુકાઓનો સમાવેશ થાય છે. પોરબંદર, રાણાવાવ અને કુતિયાણા. પોરબંદર રાષ્ટ્રપિતા મહાત્મા ગાંધીના જન્મસ્થળ માટે પ્રખ્યાત છે. જિલ્લામાં ૯૦% થી વધુ ચોક (ખડી)નું ઉત્પાદન થાય છે, જે ગુજરાતમાં સૌથી વધુ છે. ૨૦૧૧ની વસ્તી ગણતરી અનુસાર પોરબંદર જિલ્લાની અર્થવ્યવસ્થા મૂળભૂત રીતે કૃષિ પ્રવૃત્તિઓ પર આધારિત છે પ્રસ્તુત અભ્યાસમાં પોરબંદર જિલ્લાના આંતરમાળખા વિશે ચર્ચા કરવામાં આવી છે. જેમાં મુખ્યત્વે વીજળી, વાહન-વ્યવહાર અને બેન્કીંગનો સમાવેશ કરવામાં આવ્યો છે. અભ્યાસ ગૌણ માહિતી પર આધારિત છે. મુખ્યત્વે પોરબંદર જિલ્લાની આંકડાકીય રૂપરેખા (વિવિધ વર્ષો) તેમજ પોરબંદર જિલ્લાની સામાજિક-આર્થિક સમીક્ષા (વિવિધ વર્ષો)ની માહિતી તેમજ અન્ય કેટલીક માહિતીનો આધાર લેવામાં આવ્યો છે.
महिकांठा एजेंसी दरम्यान सादरा की शिक्षा व्यवस्था
Authors: देवु मोतीभाई
Published: January 2025

भारत में ब्रिटिश काल के दौरान अलग-अलग क्षेत्रों में शैक्षणिक व्यवस्था की गई थी। उस समय विविध एजेंसियों द्वारा मुख्यालय स्तर पर शैक्षणिक संस्थाएं शुरू की गई थी। महिकांठा एजेंसी द्वारा उसकी स्थापना करके सादरा में प्रशासनिक दृष्टि से कुछ परिवर्तन किए गए और सन् 1840 से गुजराती प्राथमिक विद्यालय की शुरुआत की गई, क्रमशः सरकारी विद्यालय, एंग्लो वर्नाक्यूलर विद्यालय, तालुकेदारी विद्यालय, कन्या शाला, राजकुमारों के लिए तालुकेदारों के बच्चों के लिए स्कॉट कॉलेज की शुरुआत की गई थी। सादरा में महिकांठा एजेंसी के समय दरम्यान विविध चरणों में विद्यालयों की स्थापना की गई। इसका लाभ सादरा तथा उसके आसपास के विस्तार के लोगों को मिला। महिकांठा एजेंसी के समय दौरान सादरा में शैक्षणिक कार्य में उत्तरोत्तर प्रगति हुई, नहाना लाल जैसे कवि ने सादरा में हेड मास्टर के रूप में कार्य किया। ऐसे कई प्रसिद्ध व्यक्तियों ने सादरा में शैक्षणिक कार्य किया और सादरा की शैक्षणिक प्रगति में योगदान दिया। फोर्ब्स ने पोलिटिकल एजेंट के रूप में कार्य करते हुए सादरा में फोर्ब्स विद्यालय भी खोला। तालुकेदारी शाला, कॉलेज आदि से संबंधित रुचिकर चर्चा इस संशोधन पत्र में की गई है।
SURPANAKHA'S SERMON TO RAVANA: A DIRECTING FUNCTION, PERTINENT FOR ETHICAL MANAGEMENT OF ORGANIZATIONS (IN THE CONTEXT OF RURAL INSTITUTIONS)
Authors: Gohil Bhavin , Jain Lokesh
Published: January 2025

Administrative, social, health, educational, religious and cultural institutions exist for the overall development of rural areas of India. Some of the obstacles in the ethical management of rural institutions are dishonesty, misappropriation of funds, corruption, unsustainable use of natural resources, inadequate community participation, nepotism, lack of transparency, exploitation, etc. To overcome these problems, the implementation of ethical practices in management becomes necessary. Since management is essential where humans work in groups, the functions and principles of management are applicable in these rural institutions as well. Among the different functions of management, directing function is interrelated with all other functions. Directing occupies a central position in all management functions, as the function of providing guidance and encouragement to carry out planned work falls under directing. The task of guiding and promoting principles of ethics falls under directing function of management. The present research paper is based on the ethical sermon given by Surpanakha to Ravana in Aranya Kanda of Sri Ramcharitmanas, a unique epic of Indian culture. Surpanakha’s moral guidance to Ravana can also be implemented for the ethical management of rural institutions, as it prescribes high standards of ethics, integrity, honesty and transparency for mangers and leaders. Therefore, in the presented conceptual research paper, the ethical sermon of Surpanakha have been studied by integrating them with the contemporary management functions and principles in comprehensive way, to make the administration of rural institutions transparent and holistic.
STRATEGIC IMPLEMENTATION OF NEP 2020: ENHANCING HIGHER EDUCATION QUALITY AND EQUITY IN CHHATTISGARH
Authors: Singh Priyanka , Pal Chaman Lal
Published: January 2025

The National Education Policy (NEP) 2020 represents a substantial overhaul of India's educational structure, specifically in relation to higher education. This strategy implements a comprehensive, adaptable, interdisciplinary approach to promote analytical thinking, innovation, and moral principles among students. The NEP 2020 highlights the significance of incorporating vocational education, encouraging digital literacy, and developing research and innovation. To address the educational disparities and improve access to education in Chhattisgarh, a state characterized by a wide range of socio-economic conditions, this strategy seeks to construct additional Higher Education Institutions (HEIs), develop online learning platforms, and strengthen infrastructure. Primary endeavors encompass the advocacy for traditional languages, establishing a credit-based framework to facilitate adaptable learning, and the augmentation of faculty training programs to guarantee high-quality education. The policy's emphasis on fairness and the involvement of all individuals is anticipated to tackle differences in various regions, thereby enabling students from rural and tribal communities to have more power and opportunities. NEP 2020 aims to enhance the higher education system in Chhattisgarh by bringing it in line with international standards while also considering local culture and needs.
FPGA-Based Implementation of a Basic Background Subtraction Algorithm for Real-Time Application
Authors: Abdulkhaleq Al-Yoonus Marwan , Ahmed Al-Kazzaz Dr. Saad
Published: January 2025

An intelligent video system's basic function is the detection of moving objects. Moreover, real-time systems frequently pose limitations for applications involving video processing. Practically, to increase the frame rate or in the case of limited hardware resources, the real-time processing is done on an interested image segment called the region of interest (ROI). Applying the background subtraction (BGS) algorithm to this region is considered the main preprocessing operation. This paper presents a practical study for video processing based on FPGA to detect moving objects using the BGS technique. The proposed algorithm was developed using Verilog hardware description language (HDL), synthesized, and implemented in the programmable logic (PL) part of the ZYBO-7Z010CLG400-1 platform. Finite State Machine (FSM) controller method was used to design the Intellectual Property (IP) module that controls data transfer with BRAM (loading and reading) of the input and reference image. The simulation results of the timing signal sequences of the proposed IP module with the practical test of the BGS to detect several traffic signs of image size (90×90) pixels demonstrate that the module functions as intended. The system that is being presented has a latency of 13.468 nanoseconds, making it appropriate for real-time applications.
Investigation of InAlGaN/GaN HEMT Device with SiC Substrate and Cap Layer in Self Heating Resistance for Microwave Applications
Authors: Ezzulddin Merza Marwah , Khalil Mohamed Khalid
Published: January 2025

The electrical and radio frequency (RF) characteristics of InAlGaN/GaN high electron mobility transistors (HEMTs) device with cap layer are presented in this work. In this work, Silicon carbide was used as a substrate for its excellent thermal conductivity. Here, the thermal model was used to investigate the simulation of temperature distribution at 300k. Moreover, the DC and AC performance characteristics of the device were investigated using Silvaco Atlas Technology Computer Aided Design TCAD simulator. The results showed that, the maximum obtained drain current that was 1.35 A. In addition to, the RF parameters were extracted. The cut-off frequency ft is (73 GHz), the maximum oscillation frequency fmax is (353 GHz), maximum stable gain (Gms) and maximum available gain (Gma) with a value of about (116 dB). The obtained results showed that the InAlGaN/GaN HEMT device based on SiC performance is suitable for microwave applications.
A Study on Adoption of IoT based Smart Agricultural Practices in Kerala Using Analytic Hierarchy Process
Authors: S. Uthaman Dr. Vijaya , Raj Ms. Anjana
Published: January 2025

Background: In a rapidly digitizing world, technological advancements such as the Internet of Things IoT, automation technologies, blockchains, etc., hold the potential to revolutionize traditional agricultural practices to smart farming choices. In agriculture, IoT represents a system where physical elements like plants, animals, virtual objects, and environmental factors are interconnected with the internet via specific protocols and equipment. However, in the state of Kerala, India, IoT adoption in agriculture remains meager when compared to any other state. Objectives: In Kerala, significant progress in this transition remains elusive, with limited practical implementation of Internet of Things (IoT) technologies. To bridge this gap and facilitate the modernization of Kerala's agricultural practices, this study seeks to comprehensively investigate the factors that influence the adoption of IoT in the smart agricultural practices. Method: An Analytic Hierarchy Process (AHP) analysis was used to comprehensively investigate the multifaceted factors influencing the adoption of IoT technologies for smart agricultural practices in Kerala's agricultural sector. A total of five criteria with 33 items were used for the study. A total of 10 experts were contacted for the data collection.
Result: The findings suggest that all the 5 criteria viz Data management, operational factor, social factor, economic factor and government support system has significant impact in adoption of IoT based smart agricultural practices.
Conclusion: This study will offer valuable insights to inform policymakers, agricultural organizations, and technology providers, empowering them to make informed decisions and strategically plan for the seamless integration of IoT technologies into the agricultural domain.
Phytochemical Screening and Evaluation of Hypotensive Effect of Aqueous-Methanol Extract of Sida ovata on Normotensive Rats
Authors: Onoja Emmanuel , Noel Akos Ibrahim , Kankara Idris Aliyu
Published: January 2025

Medicinal plants have been used extensively for treatment of ailments including hypotension. This work is aimed at evaluating the phytochemicals present in extract of Sida ovata root and its hypotensive effect on normotensive rats. Results indicated the presence of alkaloids, tannins, phenols, flavonoids and steroids. Values of phenols, tannins, flavonoids and alkaloids were 8.8140 ± 0.0341 (GAE/g), 9.3430 ± 0.0393 (TAE/g), 5.8836 ± 0.0296 (GAE/g) and 1.5448 ± 0.0032 (AAE/g) respectively. Normotensive rats were administered varying doses of S. ovata extract and their Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Mean Arterial Blood Pressure (MABP) and Pulse Pressure (PP)) levels were monitored over a specified period. There was a dose-dependent decrease in blood pressure following the administration of the S. ovata extract for all the parameters assessed. The SBP of the normal rat was 120.75 ± 0.7; administration of 100, 200, 400 and 800 mg/kg of the extract reduced the SBP to 114.25 ± 1.01868, 113.25 ± 0.62915, 108.50 ± 1.84842 and 108.25 ± 0.25000 respectively. Similar trends were observed for DBP, MABP and PP. S. ovata showed promising hypotensive effects in normotensive rats, indicating its potential as a therapeutic agent for managing blood pressure related diseases.
Management Activities as a Social System: A Philosophical Analysis
Authors: Karimovich Said Aslanov
Published: January 2025

The concept of ―management‖ defines various, often very distant types of activity and, as a process of ordering, ensuring functioning, is inherent in any systems. Management can be studied in philosophical, cybernetic, economic, social, psychological and other aspects, depending on the sphere of application of management theory and the tasks that are solved in a particular case. According to the objects of management (people, animals and plants, technology), a number of authors distinguish social, biological, technical management. The concept of management as an art, that is, the ability to effectively apply accumulated experience in practice, was formed in ancient times, when the boundaries of the world of art and science were not clearly understood.
Response of Gmelina Leave inhibitor on the corrosion of mild steel based on the pH
Authors: Emekwisia C.C. , Ekwosi C.J. , Omiyale G.S. , Kanjuni D.B. , Okoye J.C. , Ezugwu I.E. , Nwoye C.I.
Published: January 2025

Corrosion of mild steel in acidic environments poses significant challenges in industrial applications. This study investigates the effect of Gmelina arborea leaf extract as a green corrosion inhibitor for mild steel in acidic media with varying pH levels (1.63, 1.25, 0.74, 0.50, and 0.43). The corrosion rates of mild steel were determined both in the absence and presence of the inhibitor using weight-loss methods. In the absence of the inhibitor, the corrosion rates increased as the pH decreased, ranging from 1.013 mm/yr at pH 1.63 to 2.284 mm/yr at pH 0.43, highlighting the aggressive nature of the acidic medium. In contrast, the addition of the Gmelina arborea extract significantly reduced the corrosion rates, with values ranging from 0.237 mm/yr at pH 1.63 to 1.656 mm/yr at pH 0.43. The inhibition efficiency was observed to decline with decreasing pH, indicating that higher acidity levels diminish the effectiveness of the inhibitor. This behavior is attributed to the increased aggressiveness of the acidic medium, which may overcome the protective barrier formed by the inhibitor on the metal surface. The study concludes that Gmelina arborea leaf extract is an effective and eco-friendly inhibitor for mitigating corrosion of mild steel in acidic environments. However, its performance is pH-dependent, and optimal results are achieved at less aggressive acidic conditions. These findings support the potential application of Gmelina arborea as a sustainable alternative to synthetic inhibitors in industrial corrosion control.
Shocked POststarburst Galaxy Survey. IV. Outflows in Shocked Poststarburst Galaxies Are Not Responsible for Quenching
Authors: Fodor Antoniu , Tomko Taylor , Braun Mary , Medling Anne M. , Johnson Thomas M. , Thompson Alexander , Johnston Victor D. , Newhouse Matthew , Luo Yuanze , French K. Decker , Otter Justin A. , Tripathi Akshat , Verrico Margaret E. , Alatalo Katherine , Rowlands Kate , Heckman Timothy
Published: January 2025

Shocked POstarburst Galaxies (SPOGs) exhibit both emission lines suggestive of shock-heated gas and poststarburst-like stellar absorption, resulting in a unique subset for galaxy evolution studies. We have observed 77 galaxies that fulfilled the SPOG criteria selection using the DeVeny Spectrograph on the Lowell Discovery Telescope. Our long-slit minor axis spectra detect Hα and [O III] in some SPOGs out to 6 kpc above the galactic plane. We find extraplanar ionized gas in 31 targets of our sample overall. Using their internal and external kinematics, we argue that 22 galaxies host outflows with ionized gas masses ranging from 102
M
⊙ to 105
M
⊙. The rest are likely extended diffuse ionized gas. A positive correlation exists between active galactic nuclei (AGN) luminosity and the extraplanar gas extent, velocity dispersion, and mass—suggesting that the AGN may indeed drive the outflows detected in AGN hosts. The low masses of the extraplanar gas suggest that these outflows are not depleting each galaxy’s gas reserves. The outflows, therefore, are not likely a significant quenching mechanism in these SPOGs.
Geometrical Distances of Extragalactic Binaries through Spectroastrometry
Authors: Songsheng Yu-Yang , Wang Jian-Min , Cao Yuan , Chen XueFei , Xiong JianPing , Zhang Zhi-Xiang , Cai Rong-Gen
Published: January 2025

The growing “Hubble tension” has prompted the need for precise measurements of cosmological distances. This paper demonstrates a purely geometric approach for determining the distances to extragalactic binaries through a joint analysis of spectroastrometry (SA), radial velocity (RV), and light-curve (LC) observations. A parameterized model for the binary system is outlined, and simulated SA, RV, and LC data are computed to infer the probability distribution of model parameters based on the mock data. The impacts of data quality and binary parameters on the distance uncertainties are comprehensively analyzed, showcasing the method’s potential for high-precision distance measurements. For a typical eclipsing binary in the Large Magellanic Cloud, the distance uncertainty is approximately 6% under reasonable observational conditions. Within a specific range of data quality and input parameters, the distance measurement precision of individual binary star systems is generally better than 10%. As a geometric method based on the simplest dynamics, it is independent of empirical calibration, and the systematics caused by model selections can be tested using nearby binaries with known distances. By measuring multiple binary star systems or monitoring one binary system repeatedly, geometric distance measurements of nearby galaxies can be achieved, providing valuable insights into the Hubble tension and advancing our understanding of the Universe’s structure and evolution.
A Magnetohydrodynamics Simulation of Coronal Mass Ejections in the Upper Corona at 2.5R⊙ ≤ r ≤ 19R⊙
Authors: Hayashi Keiji , Wu Chin-Chun , Liou Kan
Published: January 2025

The methodology of a new magnetohydrodynamics simulation model of the propagation of coronal mass ejections (CMEs) in the near-Sun solar wind region at 2.5R
⊙ ≥ r ≥ 19R
⊙ is presented. The simulation model first determines the steady state of the transonic/Alfvénic solar wind with the characteristic-based inner boundary treatment for the middle of the corona at r = 2.5R
⊙ (K. Hayashi et al. 2023). To determine the numerical perturbation on the 2.5 R
⊙inner boundary surface, a kinetic self-similar model with a torus-shaped magnetic-field rope and a spherically symmetric plasma structure translating and expanding at the constant speed (named TICK model) is developed. A solar-wind MHD model (C.-C. Wu et al. 2020b) traces the temporal evolution of the injected CME through the inner boundary surface. We conducted test simulations with various choices of plasma density and temperature. The test simulation results show that the injected CME, particularly its internal magnetic structure, can be substantially altered through the interactions with the preexisting slow and dense ambient solar wind at the early phase of the propagation in the near-Sun region. The propagation speed of the discontinuity front is found to be dependent on the plasma parameters of the CME perturbation. Therefore, for better simulating the propagation of the CME, it is important for the CME models to include the nonlinear MHD interactions in the subsonic/Alfvénic regions.
A Geometric Approach to Estimate Background in Astronomical Images
Authors: Pandey Pushpak , Saha Kanak
Published: January 2025

Estimating the true background in an astronomical image is fundamental to detecting faint sources. In a typical low-photon-count astronomical image, such as in the far- and near-ultraviolet wavelength ranges, conventional methods relying on 3σ clipping and median or mode estimation often fail to capture the true background level accurately. As a consequence, differentiating true sources from noise peaks remains a challenging task. Additionally, in such images, effectively identifying and excluding faint sources during the background estimation process remains crucial, as undetected faint sources could contaminate the background. This results in overestimating the true background and obscuring the detection of very faint sources. To tackle this problem, we introduce a geometric approach based on the method of steepest descent to identify local minima in an astronomical image. The proposed algorithm, based on the minima statistics, effectively reduces the confusion between sources and background in the image, thereby ensuring a better background estimation and enhancing the reliability of faint-source detection. Our algorithm performs well compared to conventional methods in estimating the background even in crowded field images. In low-photon-count, less crowded images, our algorithm recovers the background within 10%, while traditional methods drastically underestimate it by a few orders of magnitude. In crowded fields, the conventional methods overestimate the background by ∼200% whereas our algorithm recovers the true background within ∼14%. We provide a simple prescription to create a background map using our algorithm and discuss its application in large astronomical surveys.
Three novel species and new records of Kirschsteiniothelia (Kirschsteiniotheliales) from northern Thailand
Authors: de Farias Antonio Roberto Gomes , Afshari Naghmeh , Silva Veenavee S. Hittanadurage , Louangphan Johnny , Karimi Omid , Boonmee Saranyaphat
Published: January 2025

Kirschsteiniothelia (Kirschsteiniotheliales, Pleosporomycetidae) includes 39 saprobic species recorded from dead or decaying wood in terrestrial and freshwater habitats. This study focuses on exploring Kirschsteiniothelia diversity in woody litter in Thailand. Wood samples were collected from forest areas in Chiang Rai and Chiang Mai Provinces in Thailand and examined for fungal fructifications. Fungal isolates were obtained and their morphological and sequence data were characterised. Micromorphology associated with multilocus phylogeny of ITS, LSU and SSU sequence data identified three isolates as novel species (Kirschsteiniothelia inthanonensis, K. saprophytica and K. zizyphifolii) besides new host records for K. tectonae and K. xishuangbannaensis. The placement of the new taxa and records are supported by morphological illustrations, descriptions and molecular phylogenies and the implications of these findings are discussed. Our findings provide information for understanding Kirschsteiniothelia diversity and ecology.
Notes on three closely related species of the genus Pimoa (Araneae, Pimoidae) from Southwest China
Authors: Wang Bing , Meng Qingzhen , Yao Zhiyuan , Zhang Xiaoqing
Published: January 2025

The genus Pimoa Chamberlin & Ivie, 1943, is highly diverse and currently contains 85 species, of which 67 are distributed in Asia. In this study, a new species of Pimoa is described from Southwest China: P. shimian Wang, Yao & Zhang, sp. nov. (♂♀). This new species is closely related to P. bomi Zhang & Li, 2021, and P. reniformis Xu & Li, 2007. The taxonomic keys for distinguishing these three closely related species and a distribution map of all Asian pimoids are also provided.
Modeling a Corona Discharge Separation of Fine Particles for Different Materials Used in Electrical Engineering
Authors: Guettaf Nacereddine , Said Hakim Ait , Aissou Massinissa , Zegloul Thami , Nouri Hamou
Published: January 2025

In this paper, a new method for solving Maxwell's equations associated with electrostatic separators is presented. The boundary value problem is transformed into an optimization problem by using the finite element method. Numerical simulations were carried out using Matlab software that performs equation-based multiphysics modeling for different physical processes by applying the finite element method and modified method of characteristics to a system of partial differential equations. The finite-element method is used to solve Poisson's equation, and a modified method of characteristics is used to satisfy the current continuity condition. The two methods are repeated to obtain a consistent solution to the described equations. The simulation model has been developed to determine the influence of the electrical conductor, semiconductor, and dielectric particles on the important parameters of the corona mechanism, namely the distribution of electric potential, electric field, current density, space charge density, and collection efficiency.
Predatory Journals
Authors: Corea Enoka , Molligoda Himani
Published: January 2025

none
Theme: A rare haemaglobinopathy
Authors: Rathnayake M. , Gunathilake S.
Published: January 2025

No abstract available
A boy with mild haemophilia A and eosinophilia-induced platelet dysfunction
Authors: Dharmabandu R. M. S. W.
Published: January 2025

A 14-year-old boy presented with a recent onset of spontaneous ecchymosis and epistaxis. Investigations revealed moderate eosinophilia with normal platelet count, hypogranular platelets in peripheral blood smear, and prolonged bleeding time, suspected the possibility of acquired platelet dysfunction with eosinophilia (APDE). He was also found to have persistent marginally prolonged APTT, which created a diagnostic challenge. The bleeding symptoms, eosinophilia, bleeding time, and platelet hypogranularity resolved with a full course of anti-helminthic treatment supporting the diagnosis of APDE. Coagulation factor assay revealed marginally low factor VIII levels with normal von Willebrand antigen assay and activity; hence the diagnosis of asymptomatic mild haemophilia A was made.
An infant with hepatosplenomegaly and a cherry-red spot
Authors: Piyarathna W. A. Y. C. , Senadheera N. B. , Thevarapperuma C. S.
Published: January 2025

No abstract available
C-reactive protein as a diagnostic marker for ovarian carcinoma
Authors: Wahyu Angga Dewi Umar , Rauf Syahrul , Susiawaty Susiawaty , Chalid Maisuri T. , Pelupessy Nugraha Utama , Savitri Irma
Published: January 2025

Ovarian carcinoma is a leading cause of death in gynecological cancers, making early detection crucial for improving survival rates. C-reactive protein (CRP) has shown promise as a cost-effective biomarker to distinguish ovarian carcinoma from benign ovarian masses. Elevated CRP levels are associated with an increased risk of ovarian cancer. This cross-sectional study included 87 patients: 59 with ovarian carcinoma and 28 with ovarian cysts. The aim was to evaluate CRP as a diagnostic marker to improve early detection and clinical management of ovarian carcinoma. CRP levels were measured using the enzyme-linked immunosorbent assay method. Statistical analysis was conducted to assess the differences in CRP levels between the ovarian carcinoma group and the ovarian cyst group. All statistical analyses were performed using the Statistical Program for Social Sciences (IBM SPSS 24, IL, USA). Most subjects in the study were 50 years old or younger (69%) and had ovarian carcinoma (67.8%). Age over 50 [odds ratio (OR) 5.71, p=0.01] and menopausal status (OR 4.72, p=0.01) were significant risk factors for ovarian carcinoma. No significant difference in CRP levels was found between ovarian carcinoma and ovarian cyst patients (p=0.23). Based on the results, CRP cannot be used as an effective predictor to differentiate ovarian carcinoma from ovarian cysts.
Role of platelet indices and vitamin D in forecasting deterioration of glycemic control and vascular complications in type 2 diabetes
Authors: Ahmed Obaid Al Ali Maryam , Abdelsamea Mohamedahmed Khalid , Babker Asaad Ma
Published: January 2025

Type 2 diabetes mellitus (T2DM) is a prevalent chronic condition associated with various complications, including vascular ones. Platelet indices and vitamin D have been proposed as potential predictors of glycemic control deterioration and vascular complications in T2DM patients. This study aimed to investigate the predictive role of platelet indices and vitamin D in the development of vascular complications and deterioration of glycemic control in type 2 diabetic patients attending Thumbay Hospital, Ajman. In this cross-sectional study, data were collected from individuals divided into two groups: a controlled group and a patient group with T2DM from the Thumbay Hospital and Thumbay Laboratory. A total of 100 individuals aged between 20 and 75 years was included. Demographic information, vitamin D levels, and platelet indices were collected and analyzed using appropriate statistical tests. The demographic distribution of T2DM patients revealed that males accounted for 56.76% of the sample, while females represented 43.22%. The analysis of vitamin D levels showed that 58% had a deficiency, 23% had an insufficiency, and 19% fell within the optimal range. Platelet indices were evaluated in relation to glycemic control, and significant associations were found between vitamin D levels and mean platelet volume (MPV) as well as platelet distribution width (PDW). Post-hoc tests indicated significant differences in plateletcrit values among specific glycemic control groups. Furthermore, diabetic patients had significantly higher levels of fasting blood glucose and hemoglobin A1C compared to the control group, along with higher MPV and slightly lower PDW. The findings suggest a potential predictive role of platelet indices and vitamin D in the deterioration of glycemic control and the development of vascular complications in T2DM patients attending Thumbay Hospital, Ajman.
Span-of-control’s role at the intersection of transactional leadership and employee commitment
Authors: Mabasa Tabea R. , Eresia-eke Chukuakadibia E.
Published: January 2025

Orientation: South African state-owned enterprises (SOEs) are overburdened by excessive top-level management, straining human capital budgets. Reducing this may increase the span of control, affecting the relationship between leadership style and employee commitment.Research purpose: This study examines the role of span of control in the relationship between the transactional leadership behaviours of Black top managers and employee commitment in South African SOEs.Motivation for the study: Aligning leadership behaviours with employee expectations is crucial for fostering commitment and retaining talent, especially in South African SOEs facing performance issues.Research design, approach and method: A positivist approach and quantitative method were employed. Data were gathered through self-administered questionnaires from a purposive sample of employees of SOEs. The study’s constructs were assessed using validated instruments, including the multifactor leadership scale and the three-component employee commitment model. Descriptive and inferential statistical tools were employed for data analysis.Main findings: The study reveals that span of control does not moderate the relationship between contingent reward behaviour or management by exception (Passive) and employee commitment. However, span of control moderates the relationship between management by exception (Active) and affective commitment, but not with normative commitment or continuance commitment.Practical/Managerial implication: The findings highlight specific leadership behaviours that can enhance employee commitment in South African SOEs with increased span of control.Contribution/value-add: This study contributes to leadership theory by identifying how span of control influences the relationship between leadership behaviour and employee commitment in South African SOEs.
Evaluation of Serum D-dimer Levels and the Disease Severity in Patients of Chronic Urticaria
Authors: Budamakuntla Leelavathy , Somashekar Sachin , Ramesh Heera , Kini Tapasya S , Kumar S Nandish
Published: January 2025

Background:

Urticaria is a common disorder. Besides autoimmunity, the coagulation pathway is also involved in the pathogenesis of chronic urticaria (CU). Previous studies showed that plasma D-dimer levels paralleled the severity of the disease.

Objective:

This study aimed to find the relationship between plasma D-dimer levels and the disease severity in patients with CU.

Materials and Methods:

The study population comprised 59 adult patients with CU recruited from the dermatology outpatient department in a tertiary care hospital. The patients enrolled in the study (by random sampling) were subjected to blood sampling for estimation of D-dimer levels after a thorough history and examination. Assessment of disease severity was estimated according to the Urticaria Activity Score 7, and the patients were classified into mild, moderate, and severe urticaria. All patients also underwent autologous serum skin test.

Results:

Out of the 59 patients, the D-dimer levels were increased in 59% (n = 35) of the patients and normal in 41% (n = 24) of patients. About 30.5% (n = 18) of patients had mild urticaria, 54.23% (n = 32) of the patients had moderate urticaria, and 15.25% (n = 9) of patients had severe urticaria. About 33.33% of the patients with mild urticaria had raised D-dimer levels, 71.87% of the patients with moderate urticaria had raised D-dimer levels, and 66.7% of the patients with severe urticaria had raised D-dimer levels. This study demonstrated a positive correlation between plasma D-dimer levels and severity of urticaria.

Conclusion:

Patients with CU show elevated D-dimer plasma levels. There was a positive correlation between plasma D-dimer levels and the severity of CU. Investigation for plasma D-dimer level may be an alternative way to evaluate disease severity in patients with chronic idiopathic urticaria.
Trichoscopy in Unveiling the Triad of Netherton Syndrome
Authors: Bangaru H , Ashwini D
Published: January 2025

Netherton syndrome (NS) is a rare autosomal recessive disorder characterized by the triad of congenital ichthyosiform erythroderma or ichthyosis linearis circumflexa (ILC), hair shaft abnormalities, and atopic diathesis (elevated serum IgE) caused by mutations in serine protease-inhibitor (SPINK5) gene located on chromosome 5q31–32. Here, we present a case of a 16-year-old female born to second-degree consanguineous marriage who presented with a history of atopy, generalized xerosis, plaques with serpiginous borders, and double-edged scales over the trunk, upper and lower limbs, lichenification in flexures, sparse eyelashes, and eyebrows predominantly over lateral half was noted. Hair appeared short, lusterless, and brittle with profuse scaling over the scalp and eyebrows. Trichoscopy showed trichorrhexis nodosa, “golf-tee” hair, “bamboo” hair, and “matchstick” hair over eyebrows. Serum IgE levels were raised. Skin biopsy was suggestive of ILC. Diagnosis of NS was made. The first line of treatment is topical therapy with emollients, topical corticosteroids and calcineurin inhibitors, Narrow band- ultraviolet B (NB-UVB), and infliximab.
Missed, but Momentous: A Comprehensive Review of Neglected Tropical Skin Diseases in Southern India and their Global Impact
Authors: Bhat Ramesha M , Swathi N
Published: January 2025

Neglected tropical skin diseases (NTDs) are a group of overlooked afflictions that affect marginalized populations and hinder the advancement of global health in the right direction. India, a significant hotspot, suffers immensely from these diseases, with South India providing a conducive environment for the spread and persistence of causative pathogens, leading to disastrous local and, ultimately, global consequences. Diseases such as leprosy, subcutaneous and deep mycoses, leishmaniasis, and filariasis are endemic to this region. Understanding the factors that make South India a hub for these diseases is crucial in getting to the heart of the problem. Despite notable progress, NTDs persist, sustained by the factors such as low socio-economic status, congested living conditions, and malnutrition. The challenges in NTD management encompass delayed diagnosis and resistance. However, initiatives such as the Kigali Declaration advocate for global collaboration, stressing prevention, treatment, and research. A thorough literature search was undertaken, concentrating on peer-reviewed articles and case reports published in English within the past decade. This systematic review aims to probe into the intricate facets of NTDs in South India, delving into each dermatological NTD in detail, spotlighting their essence, prevalence, socio-economic reverberations, hurdles, and the necessity for collective action. By prioritizing NTD control in South India, we can collectively alleviate local suffering and contribute to global health security and equity, charting a course toward a healthier, more resilient world.