bluuebunny/crossref_metadata_2025 huggingface dataset:
Rfid Based Shopping Cart Using Iot
Authors: J.V. Pavan Chand
Published: May 2024

In this living environment, technology is constantly advancing in a variety of domains, including artificial intelligence, machine learning, virtual reality, touch commerce, the Internet of Things, and many more. The primary objective of the project is to concentrate on the requirements and objectives of the customers, as time is of greater significance to all individuals in the actual world. On the other hand, consumers spend more time in the grocery store. It is common practice for customers to use a shopping cart to purchase a variety of things when they are at the supermarket. After making a purchase, consumers are confronted with several challenges, such as standing in a lengthy queue at the billing area and being unaware of the computation of the things that they have purchased. As a result, we may take into consideration these issues in order to discover solutions that are referred to as "IoT- Based Smart shopping trolley with automated billing." As a result, the typical product scanning that takes place at the counter is eliminated, which speeds up the overall shopping experience. In addition, the consumer will be aware of the entire amount that is owed on their account, allowing them to plan their shopping appropriately, ensuring that they only buy the necessities, so boosting their savings. Because every step of the billing process is automated, the possibility of making a mistake due to human intervention is drastically decreased. In order to further enhance the shopping experience of the consumer, the system also includes a function that gives the user the ability to remove the goods that have been scanned
Aluminium Scandium Nitride Thin Film BAW Resonators (FBAR) for 5G Applications
Authors: Poorvi K. Joshi
Published: May 2024

With the growing impact of 5G communication system, Radio-Frequency Micro-Electro-Mechanical-Systems (RF MEMS) technologies are becoming increasingly important in our daily lives. Development of filters in the 5G frequency range is being carried out tremendously. The rapid rise in smartphone usage, heightened data demands, congestion in the frequency spectrum, and advancements in technology have posed numerous challenges for the development of RF filters. The ultimate goal is to simplify the RF Front End Module used in smart phones, thereby achieving better selectivity. In this paper, a high frequency - high Q thin film bulk acoustic wave resonator of piezoelectric material Aluminium scandium nitride (AlScN)based FBAR is designed for 5G Application. Finite element analysis conducted using the COMSOL Multiphysics software assess the characteristics of the constructed FBAR. The outcomes indicate that the device resonates effectively at 5 GHz, exhibiting commendable return loss and a Q-factor of 1490. A high-resonance-frequency FBAR device offers advantages for 5G mobile technology.
Web Attack Detection Based on Honeypots and Logistic Regression Algorithm
Authors: Qi Wu
Published: May 2024

Web security has emerged as one of the most prominent concerns in the realm of cybersecurity. Traditional rule-based methods for detecting web attacks often rely on manual rule definition and pattern matching, leaving them inadequate in accurately identifying new and intricate attack patterns. In the face of these challenges, machine learning techniques have demonstrated potential and advantages. This paper presents a web attack detection method based on honeypots and the logistic regression algorithm. It involves the cleansing, filtering, and analysis of web logs captured by honeypots, followed by the vectorization of the textual data contained in these logs. The logistic regression algorithm is employed to train and test the classification of the text vectors, generating a logistic regression model. This model is then used to predict newly generated web logs, enabling effective dynamic web attack detection. Experimental evaluations using collected datasets are conducted, comparing the proposed method with the support vector machine approach. The results demonstrate that this method achieves rapid and accurate detection and recognition of web attack behaviors while ensuring performance efficacy.
Correlation Analysis for the Inheritance Pathways of Inlaid Porcelain Techniques under Rural Revitalization: Case Study of Chaoshan Region, China
Authors: Bingling Wei
Published: May 2024

Rural revitalization is essential for achieving the goals of a modern country, with culture serving as both a spiritual pillar and core competitive strength. This study focuses on the inheritance of the intangible cultural heritage of inlaid porcelain techniques in the Chaoshan region. Using Pearson and Kendall correlation analyses, this research investigates the inheritance pathways and related factors in Chaoshan, supported by literature reviews, field surveys, and interviews. Further, this study delves into the challenges and opportunities faced in the transmission of inlaid porcelain techniques and explores effective inheritance pathways to ensure their sustainable development. The findings indicate strong correlations between the transmission of inlaid porcelain techniques and modern educational training, economic factors, public awareness of intangible cultural heritage, challenges of modernization and changing times, familial inheritance methods, cultural protection, and intellectual property rights. Strengthening the training of artisans is crucial for the preservation of inlaid porcelain craftsmanship, and integrating traditional craftsmanship with modern business practices is crucial for promoting rural economic development and transmission of traditional culture. This research provides empirical evidence for cultural revitalization in rural settings, emphasizing that the protection and development of intangible cultural heritage should align with modernization efforts to ensure the sustainable transmission of this valuable cultural heritage. The study findings offer valuable insights for policy formulation and practice, facilitating cultural innovation and integration of traditional lifestyles in rural areas.
Quadrotor UAV Trajectory Tracking Control Based on Adaptive Non-singular Terminal Sliding Mode
Authors: Hongqiang Sang
Published: May 2024

To address the issue of the quadrotor unmanned aerial vehicle (UAV) being susceptible to external disturbances and model uncertainties during flight, an adaptive non-singular terminal sliding mode controller with disturbance compensation is proposed. Firstly, the quadrotor UAV dynamic model considering system disturbances is constructed using the Newton-Euler method. Next, the trajectory tracking problem is transformed into a command tracking control problem for each channel. To enhance the adaptability and robustness of trajectory tracking for the quadrotor UAV, an adaptive law is designed to dynamically adjust the sliding mode surface gain. In addition, a disturbance observer is introduced to estimate and compensate for external disturbances and model uncertainties. Finally, the stability of the designed controller is proven through the Lyapunov function. Simulation results demonstrate that the proposed controller effectively enhances the disturbance resistance and trajectory tracking response speed of the quadrotor UAV.
Recognition and Picking of Target Fruits of Crop Picking Vehicles based on Computer Vision
Authors: Zijie Lu
Published: May 2024

A crop-picking vehicle was designed to automatically pick crop fruits and reduce human labor in the later harvest. The intelligent vehicle uses a Raspberry Pi 3B + controller, combines with a monocular camera, infrared sensor, four-degree-of-freedom manipulator and manipulator, and adopts the open source computer vision library OpenCV to realize the recognition and extraction of the target fruit. Based on the actual test verification, it was concluded that the intelligent vehicle could successfully realize the picking test of simulation citrus under the condition of good ambient light.
Integrated Cost Prediction for Distribution Network Engineering Based on the Novel Multi-objective Coati Algorithm and Laguerre Polynomials
Authors: Zheng Wang
Published: May 2024

To achieve precise and stable cost prediction for distribution network engineering, a novel multi-objective coati optimization algorithm (MOCOA) is proposed, and based on this algorithm, a new multi-objective integrated prediction model based on Laguerre polynomials (LNN-Adaboost) is developed. Firstly, utilizing the nonlinear approximation properties of Laguerre orthogonal polynomials, a Laguerre neural network is constructed. Secondly, targeting prediction accuracy and stability, the Laguerre neural network is optimized using the multi-objective coati algorithm. Finally, ensemble learning Adaboost is introduced to correct the prediction errors of the model, achieving automatic allocation and recombination of error weights. By comparing with three mainstream multi-objective optimization algorithms on eight test problems, the effectiveness of the proposed algorithm is verified. Taking the cost data of the Ningxia distribution network engineering as the research object, the proposed model MOCOA-LNN-Adaboost is compared with several mainstream models. The results demonstrate that the proposed prediction model exhibits higher prediction accuracy and better prediction stability. Compared to MOCOA-ELM-Adaboost, the proposed prediction model shows an increase of 9.64% in R2, 2.65% in IA, and a decrease of 53.62% in RMSE, and 61.87% in SDEX..
Design of Compact UWB MIMO Antenna with High Isolation
Authors: Jiangtao Gong
Published: May 2024

According to the requirements of communication quality and transmission rate, a compact UWB MIMO antenna with high isolation is proposed for wireless communication system. The proposed antenna can achieve an ultra-wide band from 3.3 GHz to above 12 GHz and the isolation higher than 22.5 dB in the whole frequency range. The size of antenna element is 50 percent reduced by cutting out half of the original antenna element and the frequency band is basically unchanged. The antenna is composed of two mirror symmetrical antenna elements. An isolation strip is added between two elements to improve the isolation and a 6dB improvement of the isolation is achieved. The proposed antenna system has good radiation performance at each observation frequency points. The maximum realized gain is about 4.32dBi and the radiation efficiency is ranged from 83% to 92% at the passbands. All the results show that the proposed antenna system can be a good candidate for UWB MIMO communication applications.
Research on Step-Down Aviation Three-Phase Power Factor Correction based on Machine Learning and Optimization Algorithm
Authors: Weizhou Yang
Published: May 2024

Objectives: The study looks at power quality issues, such as phase imbalance, voltage sags, and power factor issues, in aircraft systems. It highlights how immediate power factor correction steps are required to avoid equipment longevity problems and boost system efficiency, which will ultimately improve the performance of the entire aviation system.
Methodology: Using a variety of data sources, real-time data gathering, and machine learning approaches, this study focuses on data collecting and real-time monitoring in aviation systems. Predictive modeling, testing methods for data preparation and analysis, and optimization algorithms for capacitor bank size and placement are all included. Considerations for privacy and security are covered.
Result: Salp Swarm Optimization and the Dragonfly Algorithm are used in the study to assess the ideal capacitor sizes and positions, which results in better voltage profiles and lower active power losses. Aviation systems benefit from improved power factor correction through the application of integrated machine learning and optimization, which promotes sustainability and energy efficiency.
Conclusion: The study demonstrated the significance of power factor correction in aviation by successfully addressing power quality issues in aircraft electrical systems through the use of optimization algorithms for capacitor sizing and location.
Desarrollo urbano y afectación de los ríos de Santiago de Cali
Authors: Uribe Castro Hernando , Moreno Quintero Renata , Holguin Carmen Jimena , Gomez Etayo Elizabeth , Lobato Paz Luis Eduardo , Restrepo Medina Karen Johanna , Perafán Cabrera Aceneth , Restrepo Lina María
Published: May 2024

Este libro presenta una reconstrucción histórica con perspectiva ambiental del proceso de transformación de tres unidades hídricas de la ciudad de Santiago de Cali: los ríos Cañaveralejo, Meléndez y Lili. Estos cursos de agua fueron impactados por los procesos de modernización ejecutados bajo el ideario promovido por un conjunto de políticas de desarrollo rural-urbano del Estado colombiano en el siglo XX, y que condujeron a modificaciones ecosistémicas, particularmente en su calidad de agua, caudal y biodiversidad asociada. Los tres ríos fueron convertidos en un solo canal de aguas residuales bajo la lógica y racionalidad de planes conducentes a lo que se ha denominado como modernización territorial urbana.
Hatásosabb lenne napibírsággal szankcionálni a közlekedési szabálysértéseket? – Joggazdaságtani megfontolások
Authors: Czifra Botond
Published: May 2024

Írásomban arra kerestem választ, hogyan lehetne hatásosabban ösztönözni a vagyonos járművezetőket a közlekedési szabályok megtartására. A kutatás kérdését a közgazdaságtan módszertanának segítségével közelítettem meg, hiszen a járművezető döntései kitűnően modellezhetőek a költség-haszon elmélet segítségével. A tanulmányban ismertetem a jövedelem csökkenő határhasznából eredő problémákat a közlekedési szabálysértések szankcionálásával kapcsolatban. Arra a következtetésre jutottam, hogy a day-fine büntetési rendszer alkalmazása a közutakon hatékony lehet, de ahhoz, hogy ez igazán ered- ményes lehessen, számos anomáliát kell felszámolni, amelyek a hazai büntetőjogi bírói gyakorlatot is érintik. A kutatás a közlekedési szabálysértésekkel kapcsolatos mindennapi intuíciók objektív, tudományos vizsgálatára vállalkozik, segítségével jobban megérthető a vagyonosabb járművezetők hozzáállása a pénzbüntetésekhez, illetve a büntetőjogi pénzbüntetések számítása. Az eredmények elősegíthetik a párbeszédet a jogalkotó és a rendvédelem között a probléma megoldása érdekében, és olyan további kutatások alapjául szolgálhatnak, amelyek segítségével a rendőri kapacitások megfelelő elosztásával is segíteni lehet a vagyonos járművezetők megfelelő ösztönzését.
Kis Café és élve boncolás – avagy a vezetői önismeret fejlesztésének egy innovatív kísérlete
Authors: Molnár Katalin , Vaskó Viktória
Published: May 2024

Tanár és tanítványa merész dologra – asszisztált önvizsgálatra – vállalkozott. A szerzők egyike – a mesterhallgató – a szerzők másikának – konzulensének – támogatásával diplomamunkájában saját magát és alosztályán dolgozó munkatársait választotta vizsgálódása tárgyául. A tanulmány a rendészeti vezetői kompetenciák elméleti áttekintése után a kutatás eredményeit mutatja be. Az igencsak újdonságnak számító kutatói rendőrkávéház módszerével kérték ki egy vidéki városi kapitányság kisebb szervezeti egységénél dolgozók véleményét. A fókuszban a vezető és munkatársai közötti kommunikáció lehetőségei, módjai, minősége, valamint ezeknek a munka hatékonyságára gyakorolt hatásai álltak. A szerzők azt kívánják bizonyítani, hogy az ilyen beavatkozó típusú kvalitatív kutatási módszerek a magyar rendőrség belső szervezetfejlesztő folyamataiban is használhatók lennének.
Az MRTT létrejötte (2004) : A gondolattól a megvalósulásig
Authors: Sallai János
Published: May 2024

2024-ben ünnepelheti a Magyar Rendészettudományi Társaság fennállásának 20. évfordulóját. A megalakulásához nagyon hosszú út vezetett. Az első (1878-es) rendészeti civil szervezet létrehozására vonatkozó elképzeléseket hosszú ideig nem követték gyakorlati megvalósulások. A párhuzamosan zajló rendőrkongresszusok fő célja a rendőrség államosítása volt, és csak az 1907-ben létrehozott Magyarországi Rendőrtisztviselők Országos Egyesülete keretén belül szerveztek tudományos pályázatokat, tevékenységeket. A szocilista évtizedek végén, először 1983-ban a Kriminológiai Tár- saság, majd 1990-ben a Szemere Bertalan Magyar Rendvédelemtörténeti Tudományos Társaság alakult meg. A politikai rendszerváltást követőn megerősödött a rendészet területén a tudományos igényű kutatás, publikálás és a rendészettudomány befogadására vonatkozó igény. Ebbe a folyamatba illeszkedett bele 2004-ben a Magyar Rendészettudományi Társaság létrehozása.
Practical Applications of a Participatory Science Project Evaluation Tool: Perspectives from Across Earth and Space Science
Authors: Edson Laura Brandt , MacDonald Elizabeth , Cawood Alison , Fischer Heather
Published: May 2024

While traditional science often focuses on peer-reviewed scientific publications and citations to gauge efficacy, citizen science projects, also called participatory science projects, span a broader range of goals, methods, and products than are capturable by such means. The Science Products Inventory (SPI) is one tool to assist with participatory science evaluation that extends beyond scientific outputs such as publications. Its use cases were limited to a cohort of projects during its initial development, so here we explored its utility and flexibility for use cases across multiple US federally-funded participatory science projects. We examined the tool’s formative and longitudinal utility, accessibility, and adaptability with contributory projects spanning different sizes, scopes, and goals. We found that the tool was easily customizable, making it suitable for individual project needs, including meeting the needs of funders for evaluation. It was easy to use, making it suitable for data gathering by non-expert evaluators, and it enabled practitioners to reflect on ways to enhance a project’s impact. We also found it useful for comparing evaluation data over time and between projects. Ultimately, citizen science includes elements across various dimensions that can be examined using quantitative indicators—like those in the SPI—and qualitative means. A combination of evaluation approaches could be appropriate for individual project goals and stakeholders, but we show how the simplicity and customizability of the SPI can provide benefits across a range of projects and programs.
GIMNASIO, PAIDEIA Y CIUDADANÍA HELENÍSTICA: UNA PROPUESTA PARA EL ESTUDIO DE LA EDUCACIÓN GRIEGA POSTCLÁSICA DESDE LATINOAMÉRICA
Authors: Prieto Juan Pablo
Published: May 2024

Tradicionalmente, el estudio de la antigua educación griega ha sido fundada, en América latina, sobre el análisis filológico, filosófico y literario de los autores grecorromanos. Sin embargo, esta aproximación ha provocado un paulatino déficit teórico y metodológico, relegando al ámbito de lo anecdótico o accesorio a la creciente y enriquecedora documentación proveniente de la arqueología y la epigrafía sobre una de sus manifestaciones institucionales más importantes: el gimnasio helenístico. En consecuencia, se propone demostrar el valor en integrar la evidencia proveniente de estas fuentes para el estudio de esta institución. De este modo, se busca primero identificar las falencias nacidas de dos de sus principales autores de referencia: Werner Jaeger y Henri-Irénée Marrou. En segundo lugar, se define y explora la institución educativa del gimnasio helenístico mediante la diversa documentación existente. En tercer lugar, se presentan algunos potenciales ejes de investigación de especial interés para el contexto latinoamericano.
CUANDO LOS ROMANOS CONOCIERON A LOS GALOS UNA REINTERPRETACIÓN DE LA NARRACIÓN DE LIVIO DEL ATAQUE BÁRBARO A ROMA
Authors: Moreno Agustín
Published: May 2024

Este trabajo analiza el episodio de los galos del libro 5 (§ 33-49) de Ab urbe condita. Una difundida lectura de esos capítulos sostiene que allí podemos observar un primer momento en que Livio presentaría una inversión de identidades entre galos y romanos y un segundo momento en que cada pueblo volvería a encarnar su propia identidad. Considerando esto, el objetivo de este trabajo es doble. Primero, revisar la lectura sugerida de la inversión y, segundo, ofrecer una explicación diferente de ese cambio que parece tener lugar en la narración al respecto del comportamiento de galos y romanos. Para ello, el artículo se estructura en dos partes. Primero, estudiamos la caracterización de los galos durante todo el episodio, es decir antes y después del cambio mencionado, para revisar si efectivamente se puede verificar una representación diferente de este pueblo en esos dos momentos. Segundo, analizamos la interpretación que se atribuye a Camilo de la apariencia de los galos, la que nos permite plantear una lectura diferente de lo que pasa entre galos y romanos en el episodio. Una lectura que guarda relación con la situación político-moral en Roma.
«LAS ACCIONES MÁS BELLAS Y EXCELENTES»: GYMNASION HELENÍSTICO EN TIEMPOS DE ADVERSIDAD POLÍTICA (SIGLO II A.C.)
Authors: Prieto Juan Pablo
Published: May 2024

El presente artículo reúne y traduce una serie de inscripciones griegas que permiten presentar y profundizar los roles e importancia de la institución del gymnasion durante el violento siglo II a.C. A lo largo de este período, el mundo helenístico y su marco de vida institucional sufrieron enormes crisis, marcadas estas por las amenazas crónicas de la piratería e incursiones galatas y tracias, guerras y rebeliones. Gracias a la existencia de documentación epigráfica, es posible constatar que esta institución, gracias a su consolidado compendio educativo atlético, intelectual, ideológico y militar, fue primordial en mantener y adaptar el denso entramado cívico de la polis helenística ante las enormes adversidades de un siglo crítico en entender la transición, desde el final de los inestables conflictos helenísticos, hacia el poder hegemónico romano.
AD TABULAM VALERIAM DUCTA ESSES LAS CAUSAS TRAS EL ATAQUE A TERENCIA
Authors: Lizarzategui Elu Leire
Published: May 2024

El 5 de octubre del 58 a.C. Cicerón, desde su exilio, envió una carta a su esposa donde se lamentaba del denigrante trato que había sufrido a manos de sus rivales políticos: Terencia fue públicamente conducida a la tabula Valeria para dar cuenta de unas deudas. Una de las interpretaciones más extendidas sobre este hecho defendía que la presencia de Terencia habría sido requerida para dar cuenta de los bienes confiscados de su marido, a pesar de que la pareja estuviese unida sine manu. Sin embargo, en este artículo veremos que los castigos públicos contra las mujeres de los exiliados no eran habituales durante la República, y trataremos de defender que Terencia tenía deudas propias que fueron instrumentalizadas en ese enfrentamiento político.
Aristóteles, Eudemo (texto griego establecido, traducido y comentado por Benjamín Ugalde), Ediciones Democracia y Libertad, Santiago de Chile, 2020, 97 pp.
Authors: Fuentes González Javier , Rojas Cortés Nicolás
Published: May 2024

Hacer una contribución dentro del ámbito de la historia de la filosofía no es una tarea fácil. Por ello, cabe destacar la labor realizada por Benjamín Ugalde en la edición de los fragmentos y testimonios del diálogo Eudemode Aristóteles. Este libro, que recopila y comenta sistemáticamente los fragmentos del –supuestamente–joven Aristóteles sobre el alma, se nos ofrece como ejemplo de que aún se le pueden sumar importantes contribuciones a la producción de textos en el ámbito de la historia de la filosofía.
Roberto Nicolai y Antonio, L. Chávez Reino, Tra Geografía e storiografia, Monografías de GAHIA, Sevilla-Alcalá de Henares, 2020, 188 pp.
Authors: Montanares Piña Felipe
Published: May 2024

El presente volumen que hemos de remitir tiene sus orígenes en el seminario organizado por la Asociación internacional Geography and Historiography in Antiquity (GAHIA) en la Universita La Sapienza,en Roma,el 23 de noviembre del año 2017. Este encuentro se organizó con la intención de poner en debate las interacciones de la geografía con la historiografía y profundizar en algunos temas y géneros que resultan claves para el desarrollo de este campo en la Antigüedad.
YUTMA VE KOGNİTİF FONKSİYONLARIN İLİŞKİSİ
Authors: Begen Sena , Serel Arslan Selen
Published: May 2024

Kognitif fonksiyonlar; bilgi edinme, saklama ve kullanmayı sağlayan önemli beyin işlevlerindendir. Tüm vücut fonksiyonları gibi yutma fonksiyonunun düzenlenmesi ve ayarlanmasında kognitif fonksiyonlar önemli rol almaktadır. Bu sayede birey, besin ve çevreye ait özellikler algılanıp yordanmakta ve değişen koşullara uyum sağlanarak yutma güvenli şekilde gerçekleştirilmektedir. Özellikle görsel algılama, oryantasyon, dikkat, hafıza ve yürütücü işlevleri içeren temel kognitif fonksiyonlar etkin ve güvenli yutma için gereklidir. Yutma fonksiyonu yutma öncesi faz, oral hazırlık, farengeal ve özofageal faz olarak incelenmektedir. Yutma öncesi faz ve oral hazırlık fazında kognitif fonksiyonlara daha fazla ihtiyaç duyulmakla birlikte tüm yutma sürecinde farklı düzeylerde kognitif fonksiyona ihtiyaç olmaktadır. Kognitif bozuklukların yutma bozukluğu ile ilişkisi kognitif fonksiyonların etkilendiği Alzheimer, demans ve inme gibi durumlarda açıkça görülmektedir. Kognitif fonksiyonlar ile yutma fonksiyonu ilişkisini inceleyen daha fazla çalışmaya ve bu çalışmalar doğrultusunda yutma bozukluğu rehabilitasyonunda yeni yaklaşımlara ihtiyaç bulunmaktadır.
The Effects of Time-Restricted Feeding versus a Normal Diet on Lean Body Mass in Active Individuals
Authors: Koch Hannah
Published: May 2024

Introduction: Intermittent fasting (IF) is a popular dietary strategy for its health benefits and for weight management. Time-restricted feeding (TRF) is a common approach to IF, but its effects on lean mass (LM) have not been extensively studied in active individuals. All individuals must have participated in regular physical activity for at least six months to be considered in this analysis.Methods: A search of the current literature on TRF in active individuals was conducted. Studies were critically evaluated for quality and for clinical application.Results: Five studies fit established parameters, four of which studied TRF with a resistance training (RT) regimen, and one utilized aerobic training. TRF and normal diet (ND) groups had similar results for LM and RT outcomes when matched for calories. Results on fat mass loss and changes in body composition show mixed findings. Some data suggest a TRF is beneficial for improved aerobic performance.Conclusions: TRF does not appear to be superior to a ND for building or sustaining LM in active individuals, neither is it detrimental. Current literature points to overall energy and protein intake, rather than nutrient timing, as a key modulator of LM outcomes.
The Cardiometabolic Responses to Eccentric Resistance Exercise are Attenuated Compared to Load Matched Concentric and Traditional Resistance Exercise
Authors: Fischer Stephen , McDaniel John , Stavres Jon
Published: May 2024

Introduction. It is well documented that eccentric contractions have a lower metabolic cost than concentric contractions. However, the net impact of this difference across an entire resistance training session is less clear. This study compared the cardiometabolic responses between full body resistance training sessions comprised of either eccentric only (ECC), concentric only (CONC), or traditional (TRAD) muscular actions. Methods. Twelve subjects (6 males) completed 3 work-matched exercise bouts of either ECC, CONC, or TRAD exercises (6 exercises performed at 65% one repetition maximum). Oxygen consumption (VO2), respiratory exchange ratio (RER), heart rate (HR) and mean arterial pressure (MAP) were recorded continuously throughout the entire session, while blood glucose and lactate were measured during exercise and recovery. Results. Cumulative VO2 was greater during CONC compared to ECC and TRAD (423.4  35 mLO2/kg, 249.6  46.0 mLO2/kg, and 287.7  53.9 mLO2/kg, respectively; all P<0.001). HR and MAP were also 46% and 4.3% greater during CON compared to ECC. Lastly, post exercise lactate accumulation was significantly greater in TRAD and CON compared to ECC (both P <0.001). Conclusions. These results indicate that an exercise session comprised of eccentric work evokes an attenuated cardiometabolic response compared to concentric or traditional exercises.
Maximal Fat Oxidation During Running: A Reliability and Thermo-Metabolism Pilot Study
Authors: Daoust Samuel , Munten Stephanie , D. Gagnon Dominique
Published: May 2024

Introduction: We investigated the reliability of a novel Fatmax protocol on a treadmill, and if exercising at Fatmax in the cold would increase fat oxidation and energy expenditure.Methods: On separate days, five participants performed two identical Fatmax tests. They then exercised at Fatmax, in cold (~0°C) and thermoneutral (~22°C) environments for 30 min.Results: Excellent reliability (ICC >.9) was found for the Fatmax protocol, and a non- significant increase in fat utilization was observed during cold exercise at Fatmax. Conclusions: Our novel Fatmax protocol on a treadmill is reliable and its impact on fat utilization in the cold should be further studied.
Theacrine as a Potential Caffeine Alternative for Enhanced Ergogenic and Cognitive Performance in Athletes: A Call to Action and Brief Review
Authors: Dillon Harris , Steven Machek
Published: May 2024

Theacrine supplementation has begun recent investigation aimed to increase athletic performance. Although existing literature has examined theacrine’s potential to increase physical and cognitive performance via adenosine receptor inhibition alongside its promotion of overall health and slight cognitive enhancement. Therefore, theacrine ostensibly exists as a caffeine substitute for attenuating both physical and mental fatigue. This article aims to (a) demonstrate the structural/mechanistic similarities of caffeine & theacrine, (b) showcase their existing performance roles, and (c) establish the need for future investigations on theacrine as a potential ergogenic aid in physically active populations to both prophylactically prevent fatigue and augment performance.
Female High School Athletes Regularly Consume Energy Drinks with Moderate and High Caffeine Content
Authors: Wardenaar Floris , Butterick Brooke , Meserve Anna , Schott Kinta , Marticorena Felipe
Published: May 2024

Introduction: The consumption of energy drinks can result in unhealthy caffeine intake for children. The objective of this study was to better understand energy drink consumption in young female athletes.Methods: A cross-sectional questionnaire-based study on self-reported energy drink prevalence and perception of a convenience sample (n=203) of U.S. female high school athletes (age 15.9±1.1 years). Results: Of the athletes responding, 64.5% reported use of an energy drink at some time during the last 12-months. Of this group, >25% reported using energy drinks 3-4 times a week or more. Roughly half of the athletes reported using energy drinks with a high caffeine content (~150-300 mg/serving), and they reported more positive opinions about caffeine's potential (negative) side effects compared to athletes not using energy drinks.Conclusions: A majority of female high school athletes reported the regular use of energy drinks, including those with a high caffeine content, and athletes that reported higher dose usage expressed more positive opinions about the side effects of energy drinks. High schools should include discussion about energy drinks as part of healthy lifestyle education, allowing athletes to make safe choices about the use of such products.
An Examination of Three Bioelectrical Impedance Body Composition Devices in College Students
Authors: Miller Fred , Kent Yoder  , Morgan Hear  , Yenly Londono Calle
Published: May 2024

Introduction: Having inexpensive, convenient, and accurate body composition devices available is helpful. The purpose of this study was to determine whether three bioelectrical impedance body composition analyzers are acceptable methods for measuring body composition.
Methods: Participants included 40 college students (18 males and 22 females, 17-22 years, 19.5yrs ± 1.09,). Each participant's percent body fat (%BF) was tested by a Bod Pod®, a handheld Omron HBF-306, a handheld Omron HBF-300, and a standing scale Health-o-meter model BFM081DQ1-63. Repeated measures ANOVA and Bonferroni corrected post hocs were performed to determine statistical differences for %BF among the four devices. A Bland-Altman plot was used to visualize the %BF difference between the Bod Pod and Omron HBF-306.
Results: Mean and SD %BF values for the devices were Bod Pod (19.6 ± 10.70), HBF-300 (16.6 ± 8.07), HBF-306 (18.2 ± 7.75), and Health-o-meter (21.7 ± 11.18). Repeated measures ANOVA revealed statistically significant differences (p < 0.0001) in %BF among the four devices. Bonferroni correction post hoc analysis revealed significant differences among 5 of 6 pairwise comparisons. Bod Pod and HBF 306 were not significantly different (p=0.0584). The HBF-300 underestimated %BF by 3%, and the Health-o-Meter overestimated %BF by 2.1% compared to the Bod Pod.
Conclusions: This study found only one of the three BIA devices to measure body composition accurately. Thus, it is recommended to choose the handheld Omron HBF-306 if one is looking for an inexpensive, convenient, and portable option. Otherwise, it is recommended to use a gold-standard device such as the Bod Pod.
Qualitative Description of the Exertional Symptoms of Participants with Persistent Symptoms of Lyme Disease during a Low Intensity Resistance Training Intervention
Authors: McMillin Charles , Melton Bridget , Murray Nicholas , D'Adamo Christopher
Published: May 2024

Introduction: Greater emphasis needs to be placed on approaches to improve the health-related quality of life of patients with persistent symptoms of Lyme disease (PSLD), but little information exists to inform an exercise professional’s expectations of their supervision of resistance training (RT) programs with PSLD patients. In order to build this knowledge base, a secondary qualitative analysis was performed to explore the RT exertional symptoms of PSLD patients that participated in a 4-week study investigating the feasibility of an RT intervention.
Methods:  Comments regarding exertional symptoms that were recorded in a daily exercise log were the main source of data for this secondary analysis. A manifest content analysis was performed in order to identify recurrent themes of exertional symptoms experienced by this sample of PSLD patients during RT.
Results: The reported findings revealed that strain, discomfort, crepitus, tightness, shaking, and control loss were the major themes of exertional symptoms recorded during the RT intervention.
Conclusions: These results provide insights intended to inform the expectations of supervisors of exercise (personal trainers, physical therapists, exercise researchers, etc.) when directing RT programming with patients with PSLD.
Investigating Differences in Perceived Stress Between Injured and Non-Injured NCAA Division II Student-Athletes During COVID-19
Authors: Mayol Mindy , Atkinson Faith , Irvine Sydney , Stafford L. Hunter , Klika Riggs , Long Gary , Eckert Nathanial , Robinson Richard , Reagan Brian , Cayot Trent
Published: May 2024

Introduction: Little research has examined perceived stress of injured student-athletes (SAs) during the COVID-19 pandemic. The purpose of this study was to investigate if differences existed in perceived stress between injured and non-injured SAs during the pandemic. It was hypothesized that differences would be seen between the two groups with injured SAs exhibiting higher perceived stress scores.Methods:  A total of 158 NCAA Division II SAs competing on 12 different athletic teams volunteered to complete an online demographics/historical questionnaire and the 10-item Perceived Stress Scale designed to measure the degree to which individuals believe their life has been unpredictable, uncontrollable, and overloaded during the previous month. An independent samples t-test was performed with an alpha level of p≤0.05 to examine differences in perceived stress scores.Results: A significant difference in perceived stress scores with a medium effect size was observed between injured and non-injured SAs [t(156)=3.18, p=0.002, d=0.51], with injured SAs (21.62±7.19) demonstrating higher scores than non-injured SAs (18.17±6.35).Conclusions: As hypothesized, results showed that injured SAs exhibited higher perceived stress when compared to their counterparts during the time of the COVID-19 pandemic. These findings are similar to existing literature where injured SAs demonstrated higher stress scores than non-injured SAs during pre-pandemic times.
The Collegiate Strength and Conditioning Coaches Association (CSCCa) 2023 Salary Survey
Authors: Quebedeaux Clare , Adamson Greg , Rankin Jeanne , Spurlock John E. , Sanders Gabriel J. , Peacock Corey A. , Abney Sandy
Published: May 2024

The Collegiate Strength and Conditioning Coaches Association (CSCCa) surveyed its members of collegiate strength and conditioning coaches to identify potential salary disparities in the field. The survey aimed to help coaches evaluate their roles and improve their competitive salary standing in across athletic departments nationwide. The findings are fundamental for athletic departments to assess their positioning and ensure legal compliance with compensation laws and to adequately pay employees that robustly contribute to student-athlete mental and physical wellbeing. The results highlight the evolving role of strength coaches, extending to nutrition and athlete wellbeing, and informs salary decisions, aligning with market trends. The survey underscores the need for equitable compensation standards and ongoing industry engagement to advance the profession.
Consuming Caffeinated or Non-Caffeinated Energy Shots has No Effect on Mood or Performance
Authors: Antonio Jose , Silver Tobin , Byers Peter , Jiannine Lia
Published: May 2024

Introduction: The purpose of this investigation was to determine the effects of two different energy drinks on mood as well as mental and physical performance.  
Methods:  In a randomized, double-blind, placebo-controlled investigation, subjects (n=60, 22 male, 38 female) were assigned to a caffeinated energy shot (Alpha Brain), a non-caffeinated energy shot (Ginger Rescue), or a placebo with no caffeine. Subjects were pre-tested on the psychomotor vigilance task (PVT), which is a measure of sustained attention, Profile of Mood States, and handgrip strength. Consequently, they consumed either the Alpha Brain shot, Ginger Rescue shot, or the placebo. One hour post-consumption, the assessments were repeated.
Results: There were no between-group differences (p>0.05) for any of the assessments regarding the change score (M±SD): PVT – Alpha Brain -3±15 msec, Ginger Rescue -21±60 msec, Placebo 1±21 msec; Total mood disturbance score – Alpha Brain -7.0±14.5, Ginger Rescue -4.1±11.1, Placebo -0.7±8.5; Peak handgrip – Alpha Brain 0.3±3.5 kg, Ginger Rescue 0.3±4.5 kg, Placebo -0.6±3.1 kg.
Conclusions: The acute consumption of an energy shot, regardless of whether it is caffeinated, did not affect mood, handgrip strength, or sustained attention.
El Diálogo Político Interregional entre la Unión Europea y América del Sur 2017-2020
Authors: Garay Vera Cristián , Lira Camposano Luis , Moreno Saravia Maximiliano
Published: May 2024

El Diálogo Político Interregional para la Seguridad y Defensa entre la Unión Europea y América del Sur tiene una modalidad renovada, tras el quiebre por la cuestión venezolana entre ambos grupos de interlocutores y los cambios políticos internos del bloque sudamericano. El actual diálogo, gestionado desde un lado por el Servicio Exterior de la Unión Europea, como órgano diplomático, y los interlocutores de diversos países establece una prospectiva sobre los desafíos mundiales desde Europa que no coincide con las preocupaciones sudamericanas, aunque haya consenso respecto de valores como la democracia, hay una fuerte diferencia respecto del significado de su realización concreta. Ello evidencia las dificultades de un diálogo interregional que sobre consensos valóricos genéricos ha ido ampliando su agenda de temas y que impacta en la valoración de las amenazas, debilidades y oportunidades en cada contraparte.
INFLUENCE OF HUMAN CAPITAL, EMOTIONAL INTELLIGENCE AND SELF EFFICACY TO EMPLOYEE PERFORMANCE MODERATED BY ORGANIZATIONAL CITIZENSHIP BEHAVIOR (OCB) IN POLITEKNIK PELAYARAN MALAHAYATI ACEH
Authors: Kurniadi Dedy
Published: May 2024

This study aims to analyze the influence of Human Capital, Emotional Intelligence (EI), and Self-Efficacy on employee performance at the Malahayati Shipping Polytechnic, by considering the role of Organizational Citizenship Behavior (OCB) as a moderator. Human Capital and Emotional Intelligence are considered as two important factors that influence employee performance, while Self-Efficacy is considered a factor that influences employees' ability to achieve their own goals. Organizational Citizenship Behavior (OCB) is considered a factor that influences employee performance through behavior that supports and respects organizational values. This study uses quantitative research methods with a survey approach with a questionnaire as a data collection tool. The research results show that Human Capital, Emotional Intelligence, and Self-Efficacy have a significant influence on employee performance, with OCB as a moderator that influences the relationship between these factors and employee performance. This research provides new insights into how internal factors and employee behavior influence performance in organizational environments. It is hoped that the results of this research can contribute to existing literature and provide recommendations for employee development at the Malahayati Shipping Polytechnic.
Designing Strategic Career Pathways: A Competency-Based Approach to Progression Management in the Educational Context of a Corporate University in Thailand
Authors: Suthammanon Lertchai , Boonsong Keeratikorn , Rungmuang Tinnakrittapat , Akkakanjanasupar Pakorn
Published: May 2024

This research article presents the competency-based career path design and career path management at Panyapiwat Institute of Management, a higher education institution. The study units included the Faculty of Management Science, Office of Strategy and Innovation Management, and PIM HR Excellent Center, covering teaching, research, academic service, and administration/support roles. A content analysis of the competency system data used by the institute was conducted through focus group discussions involving 15 executives from various departments. The research explores different approaches to designing career progression within the organization. The joint path of the Faculty of Management Science, Office of Strategy and Innovation Management, and PIM HR Excellent Center is divided into two paths: human resource management and strategy management, innovation, and work process development. A career progression management system was established, incorporating an analysis of key workgroups aligned with strategic goals, career goals in management, high-talent recruitment assessment, and personalized development planning. Although the study is limited to only three units, each with a different mission, it provides an excellent model for the development of a system of career progression that is applicable to the entire institution. The research investigates competency-based career path design and management at Panyapiwat Institute of Management, offering valuable insights for improving human resource management systems and creating compelling career paths in other higher education institutions.
Social Axioms and Problem-Solving Styles in an Institutional Environment
Authors: Popkochev Aleksander
Published: May 2024

What are social axioms and problem-solving styles, and how do they fit in the professional environment of higher education? The research seeks an answer to the question in a sample of 34 university lecturers using a shortened and an easier-to-use version of SAS test and Kirton KAI Inventory for the styles. Verification in the environment of SPSS 23 shows a uniform distribution and high values of Cronbach’s reliability coefficient. The axioms Effort-Reward and Social Complexity are leading for the respondents. Efficiency and Conformity are the leading decision-making styles. The values of the subscales Originality, Effort- Reward and Social Complexity are below 0.7. No correlation has been found between the professional experience of the researched subjects and the studied social axioms and problem-solving styles. A partial one has the university position in one of the styles and two structural components of the social axioms. Only in one case ANOVA confirms the hypothesis of a correlation between the social axioms’ subscales and problem-solving styles (Destiny Control-Conformity). Social axioms and preferred problem-solving styles appear to show some flexibility. Their leading components satisfactorily fit into the conditions of the professional activity of the studied lecturers.
Considerations on the authenticity and nutritional aspects of green coffee products consumed in Brazil
Authors: Sousa Filipe do Carmo Aleixo , Fraga de Souza Erika , Souza Andressa Moreira de , Mamede Alexandra Mara Goulart Nunes , Oliveira Edna Maria Morais , Freitas-Silva Otniel
Published: May 2024

Several benefits have been attributed to the consumption of green coffee, in the form of capsules or teas, mainly due to its high content of phenolic acids, which allegedly show antioxidant, antimutagenic, and anticarcinogenic activities in vitro. Chlorogenic acid is the phenolic compound present in greater proportion in coffee and the consumption of green coffee extract has been associated with health and loss of weight. However, beyond these bioactive compounds with a healthy appeal, other compounds which can have deleterious health effects should be considered in the consumption of these extracts, such as the presence of contaminants (ochratoxin A and its producing fungi), phytates, and tannins, which exhibit anti-nutritional characteristics. In that sense, this manuscript seeks to assess the composition of commercial green coffee extracts, analyzing their authenticity, nutritional and anti-nutritional aspects, to provide technical information for a qualified discussion about the effective healthiness of the consumption of commercial green coffee extracts. Nine samples of green coffee food supplements were selected and a product was prepared to serve as a standard. It was possible to identify coffee DNA in six of the commercial samples of food supplements. The products had antioxidant activity between 33 and 2408 µmol of Trolox/g. It was possible to identify chlorogenic acid in all samples with concentrations ranging from 0.023 - 20 mg / g of coffee. Six samples presented positive values for ochratoxin A, despite being within the limits of the coffee roasted legislation, there is a certain concern about the safety of these supplements.