bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of physical characteristics and nutritional status of market available Guava (Psidium guajava L.) of Noakhali district in Bangladesh
Authors: RNA Khan , KI Anjum , NA Roshni , MZ Islam , MF Islam
Published: April 2023

Guava is a popular, export-promising, fast-growing fruit crop in Bangladesh that encompasses an important demand within the local market. We conducted a study of four types of guavas, specifically Thai guava, Strawberry guava, Kazi guava, and Deshi guava, by observing various parameters. The aim of this investigation to explore the physiochemical characteristics of the guava varieties procured from the local market of Noakhali district of Bangladesh. Physical characteristics such as weight, size, length, diameter, shape, and color were determined, as well as the nutritional status of guava varieties, including their non-reducing,reducing sugar , total sugar contents, vitamin C content, and the relationship between total sugar and vitamin C content, was assessed. According to the results, Kazi guava showed the highest fruit weight (220 gm), length (5.96 cm), and breadth (6.6 cm) compared to the other guava varieties available on the market. All the guava varieties had a similar color (green to pale green), while strawberry guava was red in color. Statistically significant variations were found among the chemical characteristics such as total sugar, reducing sugar, non-reducing sugar, total sugar, reducing sugar and the vitamin C content of various varieties. The highest value of reducing sugar (6.19%), non-reducing sugar (2.02%), and total sugar (8.55%) was found in Thai guava. Vitamin-C content was highest in Deshi guava (74.73 mg/100gm), whereas Kazi guava had the lowest value (61.20 mg/100 gm) of vitamin C content. However, this research explored that Thai guava had comparatively higher nutrition than others, but physical parameters were found to be best in the Kazi guava variety.
Effect of Resource Allocation on Strategy Implementation in Kenya’s Tourism Industry: Case of Kenya Government Tourism Agencies
Authors: Kyalo Dr. Juliana
Published: April 2023

Purpose: Strategy implementation is fundamental for any organization’s survival. Many organizations across different sectors and industries do not attain their strategic objectives despite going through a robust strategic formulation process and spending considerable amount of resources in the process. Research attributes that the problem lies in the implementation stage of strategic management process which researchers claim has not been give considerable importance like its formulation counterpart. This study focuses on studying the effect of resource availability, mobilization and allocation on implementation of strategies among the tourist government agencies in Kenya.

Methodology: The research designs employed in this study were explanatory and descriptive research designs. A sample of 327 employees was made out of possible 1792 employees in the senior management; corporate, business and functional. The study employed stratified random sampling, which is a type of probability sampling techniques in selecting the respondents of the study. Data was collected through questionnaires and interviews and analysed for conclusion making. A multiple linear regression model was used to test the significance of the influence of the independent variables on the dependent variable.

Findings: The study found that availability and adequacy of physical, technological, human and financial resources in an organization were very important in boosting the implementation efforts of strategy implementers. The results shows that finances and proper budgeting of resources affect the way organizations realize their profits and objectives.

Recommendations: Based on the, study finds the researcher recommends that management of different organizations particularly those dealing with tourism improve on the timeliness of allocation of the resources so that strategies are implemented within the specified time frames
Potencial del crecimiento en Vicia faba, con abono orgánico de origen animal
Authors: Canales-Gutiérrez Angel , Vilca-Cahuana Ebelin Beluiza , Montesinos-Acsara Ruth Milagros
Published: April 2023

Vicia faba (haba o frijol) forma parte de las principales especies cultivadas en Latinoamérica, esta posee múltiples beneficios como alimento, forraje y mejora la calidad del suelo. Sin embargo, al hacer uso de abonos orgánicos se incrementa el desarrollo biológico de la planta. La investigación se realizó a campo abierto, durante diciembre 2020 a febrero 2021. El objetivo fue: Evaluar el potencial de germinación y comparar su capacidad adaptativa, con la aplicación de cuatro sustratos (cuy, alpaca, llama y gallina). El proceso de germinación fue evaluado durante 24 días, en 48 bandejas de PVC, con un total de 480 semillas, con tres repeticiones en 12 bandejas para los cuatro sustratos. Los parámetros analizados fueron el porcentaje de germinación, la altura (cm), temperatura (°C), humedad (%) y pH del suelo. Luego, realizamos el trasplante de plántulas abonadas con estiércol de animales, las cuales fueron evaluadas cada cinco días durante 46 días, haciendo un total desde el inicio de la investigación de 70 días. Los datos fueron analizados en el programa Infostat. El mayor poder germinativo se registró con el sustrato de alpaca con 66,67 % y el menor en el sustrato de gallina con 34,17 %. En el proceso de trasplante, la mejor adaptación desarrollo, se presentó en las plántulas abonadas con estiércol de cuy con 18,94 cm de altura y la menor fueron las plántulas abonadas con estiércol de llama con 16,15 cm de altura.
Machine Learning Methodology for Identifying Vehicles Using Image Processing
Authors: Hasanvand Mohamad , Nooshyar Mahdi , Moharamkhani Elaheh , Selyari Arezu
Published: April 2023

Using computer decision-making rather than human decision-making is one of the top priorities of prosperous nations around the world. The reduction of traffic infractions is one area that requires this field. Identifying the type of vehicle will significantly reduce traffic infractions. The aim of using image processing in the context of driving violations is to minimize time wastage, reduce human errors and optimize the use of resources. However, there is still a certain error rate associated with capturing images of offending vehicles and reading their plates, whether done manually or automatically. One solution to this problem is to use image processing and learning algorithms to accurately determine the type of vehicle involved. This approach can be particularly useful in scenarios where it is necessary to identify the traffic volume or count the number of specific types of vehicles passing through a particular area, such as a street or highway. Images of the automobiles, which serve as the paper’s data source, were compiled from a variety of locations with uniform camera-to-vehicle distances. The image’s background is then eliminated by removing it, and the image’s features, including its morphological features, are retrieved and provided to four classifiers so they may carry out the classification procedures. This report focuses on seven different categories of Iranian vehicles. Three sets of raw, filtered and noisy images were subjected to four machine classifiers, including support vector, k-nearest neighbor, perceptron neural network and Bayesian decision theory. The images were subjected to low-pass Gaussian filtering at various frequencies, after which salt-and-pepper noise and Gaussian noise were used to make them noisy. The results demonstrate that our proposed method with the SVM algorithm has provided acceptable results with an accuracy of 97.1, which is not only more accurate than most methods up to this point but also allows the correct classification of Iranian cars.
 
Received: 7 March 2023 | Revised: 11 April 2023 | Accepted: 17 April 2023
 
Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.
Implementation of Artificial Intelligence in Aquaculture and Fisheries: Deep Learning, Machine Vision, Big Data, Internet of Things, Robots and Beyond
Authors: Lim Leonard Whye Kit
Published: April 2023

The aquaculture and fishery industry are multi-billion-dollar business across the globe, and the demand for aquatic species produce increases exponentially throughout these years. However, the depletion of aquaculture lands and aquatic pollution are some of the major worrying predicaments challenging the future of this industry. Sustainable growth strategies are the only way out, and they must come hand in hand with the implementation of artificial intelligence to achieve the desired outcome high throughput in short time periods. The intelligent fish farm and smart cage aquaculture management system are some of the fruits of this drive, and the system keeps improving to date. In this review, we provide recent updates over the past half-decade of artificial intelligence implementation in fishery and aquaculture in hope to provide highlights and future directions to push the industry to greater heights.
 
Received: 27 February 2023 | Revised: 28 March 2023 | Accepted: 14 April 2023
 
Conflicts of Interest
The author declares that he has no conflicts of interest to this work.
 
Data Availability Statement
Data available on request from the corresponding author upon reasonable request.
Neumobilia, neumoperitoneo y neumowirsung de etiología traumática: Reporte de caso y revisión de la literatura
Authors: Chávez Sánchez Siomara Aransuzú , Bellido-Caparó Álvaro , Alvarado Jaramillo Ramón , Ramírez Cotrina César Augusto , Tagle Arróspide Martin
Published: April 2023

La neumobilia es un fenómeno asociado a presencia de fístula bilioentérica o manipulación de la vía biliar durante procedimientos o intervenciones quirúrgicas que condicionan disfunción del esfínter de Oddi. Un evento poco reportado, pero ya conocido, es el aumento de la presión intraabdominal tras un trauma abdominal cerrado, que condiciona neumobilia por un mecanismo retrógrado de fuga de aire hacia la vía biliar. Según el compromiso general de cada paciente, el pronóstico puede variar desde un cuadro benigno, que solo requiere un manejo conservador, hasta ser amenazante para la vida. Se presenta el caso de un paciente varón de 75 años, quien después de presentar un trauma toracoabdominal cerrado cursa con fractura costal y, además, ruptura r, neumoperitoneo, neumobilia, y neumowirsung, cursando con evolución favorable tras recibir manejo conservador.
Malacoplaquia del colon: Rara enfermedad que puede presentarse como un sindrome consuntivo
Authors: Barreda-Costa Carlos , Recavarren-Asencios Claudia , Herrera-Alzamora Madeleine
Published: April 2023

La malacoplaquia del colon es una causa inusual de diarrea crónica y puede presentarse como una enfermedad consuntiva. A nivel de colon produce lesiones ulceradas y nodulares erosionadas, similares a las de otras enfermedades infecciosas o granulomatosas más comunes. El diagnostico se basa en el estudio anatomopatológico que muestra acúmulos de histiocitos en la lámina propia, en cuyo interior se observan unas inclusiones redondeadas, positivas a la tinción de Von Kossa, denominadas cuerpos de Michaelis-Gutmann. Presentamos el caso de un varón 55 años, sin otras enfermedades asociadas, que debutó con diarrea, baja ponderal y anemia, mostrando una respuesta clínica muy favorable con el uso de antibióticos.
Surgical treatment of bicuspid aortic valve with aortic stenosis
Authors: Vu Ngoc Tu
Published: April 2023

Background: Patients with bicuspid aortic valve may develop isolated aortic valve disease, including isolated aortic stenosis. This disease progresses over a long period of time leading to simultaneous damage of the valves and aorta. Surgery is an effective treatment of both lesions simultaneously. This study objective is to describe the characteristic features of the diagnosis and surgery results of this disease.

Methods: All of patients diagnosed aortic stenosis due to bicuspid aortic valve were performed aortic valve replacement and asscociated aortic lesions. This retrospective descritptive study used data from the Hanoi Medical Uninversity Hospital from 3/2020 to 3/2023.

Results: This study include 25 patients who met review criteria. Aortic stenosis was in all of patients associated with ascending aortic aneurysm. Mean aortic gradient was 56,7mmHg and 36,0% of patients had ascending aortic diameter above 45mm. The most common morphology of bicuspid aortic valve was right – left coronary leaflet. 8,0% of patients had poor left ventricle function (EF < 30%). 36,0% of patients were perfomed single aortic valve replacement, 60,0% were corrected simultaneously lesions of aortic valve and ascending aorta in which 24,0% using wrapping with dacron graft. Complications: One death due to intraoperative Stanford A aortic dissection; one bleeding due to lateral wound close distal aortic anastomosis required an operation and one of sternal instability require a sternal plasty. 96,0% of patients have discharged uneventfully.

Conclusions: Surgery is an effective treatment of both lesions simultaneously of aortic valve and descending aorta in aortic stenosis due to bicuspid aortic valve malformation. Wrapping of the ascending aorta may be useful in patients who need to undergo aortic valve surgery without increasing the risk of surgery.
Representaciones en torno a la “explotación cognitiva informacional”: el caso YouTube en Argentina
Authors: Dolcemáscolo Agostina
Published: April 2023

Este artículo analiza las representaciones que productores (autónomos, empresariales e institucionales) de YouTube en Argentina construyen en torno a la explotación cognitiva informacional. Con este concepto buscamos dar cuenta, a partir de un caso de estudio, de la tensión que tiene lugar entre la producción sin fines de lucro de mucha de la información digital que circula en la Web en forma de datos, imágenes, música, videos, etc., y su apropiación por parte de empresas capitalistas con fines lucrativos. Así, partimos de la idea de que entre los productores y YouTube se producen intercambios asimétricos de flujos de información digital. Específicamente, flujos de datos, contenidos, atención y dinero. También indagamos en aquellas representaciones en torno a las legislaciones de derechos de autor y los “términos del servicio” del sitio de videos para conocer si estos se piensan a sí mismos como titulares de derechos de autor y cuál es su grado de observancia sobre estas normas. Para desarrollar este trabajo, entrevistamos a 17 productores en base en una tipología de actores construida de acuerdo con su finalidad comercial o no, su carácter institucional, empresarial o autónomo, y sus objetivos en YouTube (creación de contenido, difusión, archivo).
La federalización de la CTI en Argentina y el diseño de políticas de inversiones públicas para la infraestructura del conocimiento
Authors: Kababe Yamila , Gutti Patricia
Published: April 2023

En este artículo nos proponemos aportar al análisis sobre la federalización de la Ciencia, Tecnología e Innovación (CTI) en Argentina mediante el abordaje de dos áreas de vacancia en el campo de los estudios académicos en CTI. Por un lado, el tema de la infraestructura del conocimiento (IC) y, por otro lado, el análisis de los procesos de diseño de políticas públicas. Para ello, efectuamos una revisión literaria que complementa los aportes del enfoque sistémico de la economía de la innovación con la bibliografía de la rama disciplinar de las ciencias políticas denominada “nueva orientación del diseño de políticas públicas”. En este marco, presentamos en primer término, las nociones conceptuales de la IC y sus funciones en los sistemas nacionales de innovación, así como la discusión sobre el papel del Estado y las decisiones de política en torno a las inversiones necesarias para su desarrollo y sostenimiento. En segundo término, exponemos una propuesta conceptual y analítica renovada para el abordaje de los procesos de diseño de políticas, y su contribución para identificar niveles de federalización de los recursos estatales invertidos. La referencia empírica de la propuesta se enmarca en el caso de estudio de la política de inversiones públicas en IC Argentina entre 2005 y 2015.
Virtual Desktop Assistant
Authors: Saurabh Biradar  , Prasad Bramhapurkar  , Rakesh Choudhari  , Snehal Patil  , Prof. Deepa Kulkarni
Published: April 2023

Virtual Desktop Assistants (VDAs) are computer programs designed to assist users in performing a wide range of tasks. They can help users to navigate their computer systems, access files and applications, schedule meetings, and perform other functions. In recent years, there has been a growing interest in the development of VDAs that can provide more advanced services, such as natural language processing, machine learning, and intelligent decision-making. We describe the architecture of our VDA, including its natural language processing and decision-making components. We also present a detailed evaluation of the VDA's performance, including its accuracy, speed, and usability. Our results demonstrate that the VDA is highly effective in assisting users with a wide range of tasks, and that it offers significant benefits over traditional desktop interfaces. Overall, our VDA represents a significant advance in the development of intelligent computer interfaces. It has the potential to revolutionize the way we interact with computers, making it easier and more intuitive than ever before. We believe that our work will contribute to the ongoing effort to create more intelligent and user-friendly computing environments
Phishing Website Detection using Machine Learning Rules with Cryptography Technique
Authors: Balaji K  , Iyappan K  , Manoj Kumar T  , Grace Mary S
Published: April 2023

Phishing, a type of cybersecurity attack aimed at stealing personal information like passwords and credit card numbers, can be mitigated through the use of machine learning techniques for detecting phishing websites. In response, cybersecurity experts are actively seeking reliable and robust detection techniques to identify phishing websites. This research paper focuses on the implementation of machine learning technology for detecting phishing URLs by extracting and analyzing various features from both legitimate and phishing URLs. Support Vector Machine algorithms are employed for this purpose, to identify the most effective algorithm based on accuracy rate, false positive rate, and false negative rate, to enhance phishing detection measures. Cryptography Technique like the RSA algorithm is used to secure encryption method to encrypt the user search data before being stored on the server. The paper further discusses the reasons why ensemble machine learning methods are well-suited for binary phishing classification challenges in real-time detection scenarios, underscoring their efficacy in anti-phishing techniques.
Barking up the wrong tree: the dangers of taxonomic misidentification in molecular phylogenetic studies
Authors: de Almeida Rafael Felipe , Pellegrini Marco O.O. , de Morais Isa L. , Simão-Bianchini Rosangela , Rattanakrajang Pantamith , Cheek Martin , Simões Ana Rita G.
Published: April 2023

Background and aims – Keraunea is a Brazilian endemic genus that has sat uncomfortably in Convolvulaceae where it was placed due to an enlarged and adnate fruit bract typical of Neuropeltis. A recent molecular phylogeny suggested that two of its five morphologically almost identical species actually belong to two different families, Malpighiaceae (superrosids) and Ehretiaceae (superasterids). Later studies have demonstrated that Keraunea effectively belongs to Ehretiaceae, but the proposal of one species belonging to Malpighiaceae has remained problematic. In this study, we re-assess this hypothesis, discuss the issues that have led to this assumption, and offer insights on the importance of carefully using herbarium collections and incorporating morphological evidence in systematic studies.

Material and methods – Sequences of matK, rbcL, and ITS for all 77 currently accepted genera of Malpighiaceae, K. brasiliensis and Elatinaceae (outgroup) were compiled from GenBank and analysed with Maximum Likelihood and Bayesian Inference criteria for nuclear, plastid and combined datasets. Additional database and herbarium studies were performed to locate and analyse all duplicates of the holotype of K. brasiliensis to check for misidentified or contaminated material.

Key results – Our examination of expanded DNA datasets and herbarium sheets of all K. brasiliensis isotypes revealed that a mistake in tissue sampling was, in fact, what led to this species being proposed to belong in Malpighiaceae. Kew’s isotype had a leaf of Malpighiaceae (likely Mascagnia cordifolia) stored in the fragment capsule, which was sampled and sequenced instead of the actual leaves of K. brasiliensis. Recently published studies have settled the placement of Keraunea in Ehretiaceae (Boraginales) and proposed three additional species.

Conclusions – DNA sequences can be helpful in classifying taxa when morphology is conflicting or of a doubtful interpretation, with molecular phylogenetic placement being established as a popular tool accelerating the discovery of systematic relationships. Nonetheless, molecular techniques are also susceptible to methodological mistakes, which necessitates building a solid foundation of plant morphology and taxonomy to avoid artefacts in phylogenetic studies.
Horizontal Foot Speed During Submaximal
and Maximal Running
Authors: Clark Kenneth , Ryan Laurence , Meng Christopher , Stearne David
Published: April 2023

Horizontal foot speed is fundamental for running synchronization and stability, and may also be important for sprinting performance. In this investigation, we quantified the following during steady-speed running: (a) peak forward foot speed during the swing phase, (b) backward foot speed at touchdown, and (c) ground speed difference (GSD), i.e., the difference between forward running speed and backward foot speed at touchdown. We hypothesized that forward and backward foot speed would be significantly and positively correlated with top speed, and that GSD would be significantly and negatively correlated with top speed. Participants (20 male, 20 female) completed 40-m submaximal and maximal-effort running trials, with kinematic data collected from 31–39 m. Across top speed trials, forward foot speed (r = 0.90, p < 0.001) and backward foot speed (r = 0.85, p < 0.001) were significantly and positively correlated with running speed. However, counter to expectations, GSD values slightly increased with top speed (r = 0.36, p = 0.027). These findings indicate that forward and backward foot speeds are important variables for sprinting performance, but faster runners may not necessarily exhibit lower GSD values at top speed.
Comparison of Muscle Activity between the Horizontal Bench Press and the Seated Chest Press Exercises Using Several Grips
Authors: Muyor José , Rodríguez-Ridao David , Oliva-Lozano José M
Published: April 2023

This study aims to compare muscle activity in the pectoralis major, anterior deltoid, and triceps brachii in the horizontal bench press exercise with a prone grip at 150% and 50% of the biacromial width and the seated chest press exercise with two types of grips (a neutral grip at ~150% of the biacromial width and a prone grip at ~200% of the biacromial width). Twenty physically active adults performed a set of 8 repetitions at 60% of the one repetition maximum. The results showed that the clavicular portion of the pectoralis major had significantly greater muscle activity in the seated chest press exercise with a neutral grip (~30% of the maximal voluntary isometric contraction (MVIC)) than in the lying bench press exercise with a prone grip at 150% of the biacromial width (~25% MVIC). The muscle activity of the anterior deltoid was not significantly different across any exercise or grip evaluated (~24% MVIC). The muscle activity of the triceps brachii was significantly higher in the lying bench press exercise with a grip at 50% biacromial width (~16% MVIC) than at 150% of the biacromial width (~12% MVIC). In conclusion, all exercises and grips showed similar muscle activity, and the selection of these exercises should not be based exclusively on the grounds of muscle activation but rather on the load capacity lifted, the level of technique of the participant, and/or the transference to the specific sporting discipline or event.
Training in a Hot Environment Fails to Elicit Changes
in the Blood Oxidative Stress Response
Authors: Williamson-Reisdorph Cassie , Quindry Tiffany , Christison Katherine , Gurney Shae , Tiemessen Katheryn , Cuddy John , Hailes Walter , Slivka Dustin , Ruby Brent , Quindry John
Published: April 2023

Environmental temperature can impact exercise-induced blood oxidative stress; however, the effects of heat acclimation on this response have not been fully elucidated. The purpose of the study was to investigate the effects of hot (33°C) and room temperature (20°C) environments on post-exercise blood oxidative stress responses following 15 temperature acclimation sessions. Untrained participants (n = 38, 26  7 years, VO2peak = 38.0  7.2 years) completed 15 temperature acclimation sessions of a cycling bout at an intensity perceived as “hard” in either a hot (33°C) or room temperature (20°C) environment. Pre and post acclimation exercise tolerance trials were conducted, which involved cycling at 50% Wpeak for one hour. Blood sampling occurred before exercise, immediately after, two hours, and four hours after the exercise tolerance trials. Blood samples were analyzed for oxidative stress markers including lipid hydroperoxides, 8-isoprostanes, protein carbonyls, 3-nitrotyrosine, ferric-reducing ability of plasma, and Trolox-equivalent antioxidant capacity. Exercise-dependent increases were observed in lipid hydroperoxides, Trolox-equivalent antioxidant capacity, and ferric-reducing ability of plasma (p < 0.001). Considering exercise-induced elevations in markers of blood oxidative stress, there were no differences observed between environmental temperatures before or after the acclimation training period.
Conditioning Strategies for Improving Handball Throwing Velocity: A Systematic Review and Meta-Analyses
Authors: Petruzela Jan , Papla Monika , Stastny Petr
Published: April 2023

Ball throwing velocity is essential for scoring goals in handball; the crucial question is how to develop throwing velocity in highly trained handball players. Therefore, this systematic review aims to summarize effective conditioning strategies to improve throwing velocity in elite male players and to perform a meta-analysis on which training system can provide the highest increase in throwing velocity. The literature was analyzed using the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) in PubMed, Scopus, and Web of Science. Thirteen studies (sample n = 174) were included: five resistance training studies, one core training study, one study on repeated shuffle sprint training with small-sided games, and one on eccentric overload training. Effect size comparison showed that resistance training is the most effective strategy for improving throwing velocity in elite handball players (d > 0.7). Core training showed a small effect (d = 0.35). Small-sided game (SSG) training showed different results, from a significant positive effect (d = 1.95) to a negative effect (d = –2.03), and eccentric overload training showed a negative effect (d = –0.15). Resistance training is the most effective strategy for improving throwing velocity in elite handball players, while core training and SSGs can improve throwing velocity in youth athletes. Due to the small number of studies focusing on elite handball players, there is a need for more studies on advanced resistance training methods, e.g., contrast, complex, ballistic training, because much greater demands are placed on handball performance assumptions.
Motivated and without Fear of Failure: The Strength of Basic Psychological Needs in Youth Spanish Athletes in Team Sports
Authors: González-Hernández Juan , Gómez-López Manuel , Manzano-Sánchez David , Valero-Valenzuela Alfonso
Published: April 2023

Connecting desires for achievement, the satisfaction of basic psychological needs and the perception of fear of failure is one of the most relevant questions in the understanding of negative mental responses in youth athletes. How to act with less fear is what every athlete seeks to feel to enhance their performance actions. This paper aims to shed light on a sample of 681 members of sports teams belonging to different Spanish clubs (391 boys and 290 girls), with a mean age of 16.2 years, and a high sports dedication (75.5% > 5 years of experience; 96.3% > two training sessions/week; 90.3% > 3 hours of training/week). The collected data used self-reports based on the tenets of achievement motivation, Self-Determination Theory, and fear of failure. Those aspects linked to task involvement were positively close to Basic Psychological Needs (BPNs), while those related to ego involvement moved away from task involvement and BPNs. Fear was associated positively and significantly only with ego, and negatively with the rest of the constructs. In the standardized direct effect, positive and significant associations were observed among all constructs except between an ego-involving climate and basic psychological needs satisfaction. The association between a task-involving climate and BPNs was significant in fostering relationships among group members, as well as in improving interpersonal cohesion, empathic understanding processes, and reducing fear of failure in youth athletes.
Censura de prensa
Authors: El Editor
Published: April 2023

No hay resúmenes disponibles.

ECA Estudios Centroamericanos, Vol. 32, No. 344, 1977: 353-358.
Mecanismos ideológicos del corporativismo
Authors: Cuéllar Saavedra Oscar
Published: April 2023

No hay resúmenes disponibles.

ECA Estudios Centroamericanos, Vol. 32, No. 344, 1977: 385-404.
Leyendo el Diario Oficial
Authors: Cruz Alfaro Ernesto
Published: April 2023

No hay resúmenes disponibles.

ECA Estudios Centroamericanos, Vol. 32, No. 344, 1977: 412-415.
Crisis Communication at the Local Level – A Case Study of Novi Pazar
Authors: Kešetović Želimir , Radojević Kristina
Published: April 2023

Crisis communication is an absolutely vital part of crisis management and emergency response, with a great impact on the success of operational efforts to prevent unwanted events, that is, if these events do happen, their harmful consequences are reduced as much as possible. In this sense, this area must be regulated both normatively and functionally, and this subject is given great attention in developed and successful countries. When it comes to the Republic of Serbia, the establishment of the necessary normative and functional assumptions for successful crisis communication is still in its initial phase of development. This paper analyzes the normative and functional aspects of crisis communication in the town of Novi Pazar based on the available sources of data and documents, as well as a survey of relevant actors. The authors conclude that although significant efforts have been made in launching a crisis communication system at the local level, nonetheless, there are certain oversights, weaknesses, and shortcomings in this area, i.e. significant room for improvement of crisis communication of the city headquarter for emergency situations and competent organizational units within the city offices.
Geopolitics of Health – Subdisciplinary Research of Medical Science and Health Systems Manipulations in the Context of Geopolitics as a Synthetic Science
Authors: Despotović Ljubiša , Glišin Vanja
Published: April 2023

The authors of this paper begin by defining geopolitics as a synthetic science, as well as applied geopolitics, constituted in the theoretical level of geopolitics, in an attempt to point to the existing subdisciplines that are already constituted and which categorical-conceptual and methodological apparatus is used for analysis of special, isolated phenomena, such as identity, cyberspace, emotions, etc. Starting from the fact that geopolitics is a complex synthetic science that develops its theoretical steps forward towards constitution of new disciplinary and subdisciplinary dimensions, the authors strive towards constituting a new, original subdiscipline defined as “geopolitics of health”. We are speaking of a discipline of applied geopolitics (applicative geopolitics) that deals with research of the impact of socio-geographical, economic and political factors on endangering health as a public good in the context of geopolitics as synthetic science. Thus, geopolitics of health is a pioneer subdiscipline of geopolitics that researches, analyses and synthetizes the acquired results in order to distinguish possible abuse of medical science and health system by corruptive individuals, interest groups, health authorities, pharmaceutical industries, legal regulations and official state and international organizations’ policies, which all, in some way, deal with the issue of human health. Using the method of analysis and synthesis, the method of deduction and the geopolitical method, we strive to lay the foundation for further research advances in the context of geopolitics as a synthetic science.
A Framework for Evaluating Legacy Systems – A Case Study
Authors: Vesić Slavimir , Laković Duško
Published: April 2023

The phenomenon of legacy systems is very complex, insufficiently understood or viewed in isolation in theory and practice, leading to many failed modernization projects even with significant invested funds. In this paper, within the framework of a case study, the problems of legacy systems are observed and classified into appropriate perspectives. A framework for evaluating legacy systems is proposed, which aims to contribute to a better understanding of legacy systems and, thus, to the selection of a suitable modernization strategy for a specific system. A case study was conducted at PUC BWS, together with a value chain analysis. After that, research was carried out on certain city water supply systems in Serbia and the region, where respondents presented their views, as well as professional opinions on legacy systems. Based on the obtained results, it can be concluded that the proposed conceptual framework can serve as a tool through which it can be checked whether the system exhibits the characteristics of the legacy system.
Confiscation of Property Obtained From a Criminal Offense as a Measure to Fight Against Organized Crime
Authors: Merdović Boro , Stojković Numanović Katarina , Dragojlović Joko
Published: April 2023

An analysis of most definitions of organized crime point to the fact that its main goal is the acquisition of financial profit. That is why one of the basic measures that most affects organized crime is confiscation of illegally acquired property. The purpose of that confiscation, through different historical epochs, was to punish the perpetrator of a criminal act, to compensate the injured party, or to prevent and deter others from committing criminal acts. The goal of this paper is to review scientific literature and analyze the content of various legal acts and documents, with the application of the comparative method, and to point out the specifics of the institute of confiscation of property acquired through criminal activities as one of the measures in the fight against organized crime. Property confiscation as a special measure in the fight against crime has encountered numerous criticisms and controversies in domestic and foreign literature, which will be the subject of a separate part of this paper. Seizures differ from country to country due to different legal qualifications, making it difficult to apply this institute in a uniform manner, on a global level. We point out the results that this measure gave at the international level and the success and criticism of its application in domestic legislation and practice.
The impact and estimation of uncertainty correlation for multi-angle polarimetric remote sensing of aerosols and ocean color
Authors: Gao Meng , Knobelspiesse Kirk , Franz Bryan A. , Zhai Peng-Wang , Cairns Brian , Xu Xiaoguang , Martins J. Vanderlei
Published: April 2023

Abstract. Multi-angle polarimetric (MAP) measurements contain rich information for characterization of aerosol microphysical and optical properties that can be used to improve atmospheric correction in ocean color remote sensing. Advanced retrieval algorithms have been developed to obtain multiple geophysical parameters in the atmosphere–ocean system, although uncertainty correlation among measurements is generally ignored due to lack of knowledge on its strength and characterization. In this work, we provide a practical framework to evaluate the impact of the angular uncertainty correlation from retrieval results and a method to estimate correlation strength from retrieval fitting residuals. The Fast Multi-Angular Polarimetric Ocean coLor (FastMAPOL) retrieval algorithm, based on neural-network forward models, is used to conduct the retrievals and uncertainty quantification. In addition, we also discuss a flexible approach to include a correlated uncertainty model in the retrieval algorithm. The impact of angular correlation on retrieval uncertainties is discussed based on synthetic Airborne Hyper-Angular Rainbow Polarimeter (AirHARP) and Hyper-Angular Rainbow Polarimeter 2 (HARP2) measurements using a Monte Carlo uncertainty estimation method. Correlation properties are estimated using autocorrelation functions based on the fitting residuals from both synthetic AirHARP and HARP2 data and real AirHARP measurement, with the resulting angular correlation parameters found to be larger than 0.9 and 0.8 for reflectance and degree of linear polarization (DoLP), respectively, which correspond to correlation angles of 10 and 5∘. Although this study focuses on angular correlation from HARP instruments, the methodology to study and quantify uncertainty correlation is also applicable to other instruments with angular, spectral, or spatial correlations and can help inform laboratory calibration and characterization of the instrument uncertainty structure.
Water release and homogenization by dynamic recrystallization of quartz
Authors: Fukuda Junichi , Okudaira Takamoto , Ohtomo Yukiko
Published: April 2023

Abstract. To evaluate changes in water distribution generated by
dynamic recrystallization of quartz, we performed infrared (IR) spectroscopy
mapping of quartz in deformed granite from the Wariyama uplift zone in NE
Japan. We analyzed three granite samples with different degrees of
deformation: almost undeformed, weakly deformed, and strongly deformed.
Dynamically recrystallized quartz grains with a grain size of
∼10 µm are found in these three samples, but the
percentages of recrystallized grains and the recrystallization processes are
different. Quartz in the almost-undeformed sample shows wavy grain
boundaries, with a few bulged quartz grains. In the weakly deformed sample,
bulging of quartz, which consumed adjacent host quartz grains, forms regions
of a few hundred micrometers. In the strongly deformed sample, almost all
quartz grains are recrystallized by subgrain rotation. IR spectra of quartz
in the three samples commonly show a broad water band owing to H2O
fluid at 2800–3750 cm−1, with no structural OH bands. Water contents in
host quartz grains in the almost-undeformed sample are in the range of
40–1750 wt ppm, with a mean of 500±280 wt ppm H2O. On the
other hand, water contents in regions of recrystallized grains, regardless
of the recrystallization processes involved, are in the range of 100–510 wt ppm, with a mean of 220±70 wt ppm; these values are low and
homogeneous compared with the contents in host quartz grains. These low water
contents in recrystallized regions also contrast with those of up to 1540 wt ppm in adjacent host grains in the weakly deformed sample. Water
contents in regions of subgrains are intermediate between those in host and
recrystallized grains. These results for water distribution in quartz imply
that water was released by dynamic recrystallization.
Artificial intelligence in inflammatory bowel disease: implications for clinical practice and future directions
Authors: Ahmad Harris A. , East James E. , Panaccione Remo , Travis Simon , Canavan James B. , Usiskin Keith , Byrne Michael F.
Published: April 2023

Inflammatory bowel disease encompasses Crohn’s disease and ulcerative colitis and is characterized by uncontrolled, relapsing, and remitting course of inflammation in the gastrointestinal tract. Artificial intelligence represents a new era within the field of gastroenterology, and the amount of research surrounding artificial intelligence in patients with inflammatory bowel disease is on the rise. As clinical trial outcomes and treatment targets evolve in inflammatory bowel disease, artificial intelligence may prove as a valuable tool for providing accurate, consistent, and reproducible evaluations of endoscopic appearance and histologic activity, thereby optimizing the diagnosis process and identifying disease severity. Furthermore, as the applications of artificial intelligence for inflammatory bowel disease continue to expand, they may present an ideal opportunity for improving disease management by predicting treatment response to biologic therapies and for refining the standard of care by setting the basis for future treatment personalization and cost reduction. The purpose of this review is to provide an overview of the unmet needs in the management of inflammatory bowel disease in clinical practice and how artificial intelligence tools can address these gaps to transform patient care.
PERFORACIÓN ESOFÁGICA TARDÍA POSTERIOR A DILATACIÓN ENDOSCÓPICA DE UNA ESTENOSIS ESOFÁGICA CONGÉNITA. HOSPITAL DEL NIÑO MANUEL ASCENCIO VILLARROEL, 2013 A PROPÓSITO DE UN CASO
Authors: Tejada Aldazosa Jorge Enrique , Melean Camacho Luis Gonzalo
Published: April 2023

Se analizó el caso de una paciente pediátrica de dos años y dos meses de edad con estenosis esofágica congénita diagnosticada tres meses antes de su internación al Hospital del Niño Manuel Ascencio Villarroel, en 2013, con el objetivo de identificar el manejo de la estenosis esofágica congénita y sus complicaciones.

La paciente presentó un cuadro de disfagia a alimentos sólidos y semisólidos antes de los procedimientos endoscópicos: tos, fiebre, dolor torácico, dificultad respiratoria y cianosis posterior a la última dilatación esofágica.

Se le efectuaron estudios laboratoriales y métodos auxiliares diagnósticos: Endoscopias esofágicas; dilataciones esofágicas; hemograma; cultivo de orina; RX de tórax; cultivo de líquido purulento de cavidad pleural y esofagogramas. Los estudios mostraron un diagnóstico tardío confirmado por endoscopia. Se realizó el tratamiento de la estenosis con dilataciones endoscópicas bajo anestesia general; perforación de esófago posterior a la última dilatación endoscópica.

En el servicio de consulta ambulatoria se le efectuó un examen general de orina cuyos resultados fueron: leucocitos +++, proteínas +, nitritos positivo. Al examen microscópico: células epiteliales 2 a 4 por campo, leucocitos abundantes, eritrocitos 0 a 1 por campo, flora bacteriana abundante, piocitos 1 a 3 por campo. De igual manera se realizó un urocultivo cuyo resultado fue: colonias > 100000 UFC/ml, germen identificado E. coli, sensible a Sulfatrimetropin, Gentamicina, Norfloxacina, Cefalosporinas de tercera generación. Dichos resultados podrían atribuir las alzas térmicas.

La controversia persiste en decidir cuál es el mejor manejo inicial adecuado para el cuadro de estenosis esofágica, ya sea un manejo quirúrgico o un manejo conservador con dilataciones esofágicas endoscópicas.
Essay valences in the creation of filmmaker Vlad Druc
Authors: Olărescu Dumitru
Published: April 2023

An analytical approach to several variants of the defi nition of the essay facilitated the identifi cation of its essential features. Essay writers interpret topics in an individual way, relying more on erudition, imagination, and associations. Th anks to the thematic freedom and the ways of expression, the essay evolves between the two forms of knowledge: scientifi c and artistic. All these particularities are also common to the cinematographic essay, asserting themselves with the appearance of the author’s fi lm. Th e constitution of the fi lm-essay also requires a special attitude towards the ways of cinematic expression, as well as its formal elements. In domestic cinema, essayistic tendencies can be identifi ed in the fi lms of several directors. However, the fi lmmaker Vlad Druc asserted himself completely in the fi eld of this type of non-fi ction fi lms,. Most of his fi lms contain some of the essential particularities of the essay, and a good part of them, integrating these qualities, can be called essay fi lms in the notional sense: Ion Creangă, Ploi de dor, Firul viu, Goblen, Meșterul anonim, Moara, Cheamă-i, Doamne, înapoi, Ștefan cel Mare, Obsesie, Vai, sărmana turturică, etc.
Rapid RP-HPLC Method for Simultaneous estimation of Umeclidinium and Vilanterol in human plasma
Authors: Babu G. Raveendra , Sowjanya M. , Ramayyappa M. , Karishma Md. Abdul , Bharathi V. , Swathi G. Renuka , Renuka Ch. , Krishna G. Gopala , Lavanya M.
Published: April 2023

A simple, precise, accurate method was developed for the estimation of Umeclidinium andVilanterol in human plasma using Empagliflozin as internal standard by RP-HPLC (Reverse phase-High performance Liquid Chromatographic) technique. Chromatographic conditions used are stationary phase KromasilC18 (250 x 4.6 mm, 5m)coulmn, mobile phase of 0.01N di sodium hydrogen phosphate (pH: 3.0): Acetonitrile in the ratio of 65:35(v/v) and flow rate was maintained at 1.0ml/min, detection wave length was 215nm, column temperature was set at 30oC and diluent was mobile phase. Retention time of Umeclidinium and Vilanterol and were found to be 2.471min and 3.303min. %CV of the Umeclidinium and Vilanterol were found to be 0.33% and 0.43%. %Recovery was obtained as 99.34% and 99.029%. The linearity concentration is in the range of 1.25-50µg/mL of Umeclidinium, 0.25-10.0µg/mL of Vilanterol respectively. The lower limits of quantification were 1.25µg/mL of Umeclidiniumand 0.25µg/mL of Vilanterol which reach the level of both drugs possibly found in human plasma. Further, the reported method was validated as per the ICH guidelines and found to be well within the acceptable range.
The Protective Role of Camel Milk against Reprotoxicity, Hepatotoxicity, and Nephrotoxicity in Aflatoxic-Induced Male Rats
Authors: J. Mohammad Basima , Al-Saaidi Jabbar A. A. , AL_Zwean Dirgham H. Y.
Published: April 2023

The goal of this study was to document the toxic effects of aflatoxin B1 (AfB1) on the testis, epididymis, liver, and kidneys of adult male rats, and to employ camel milk as a natural antidote to neutralize these effects. For these purposes, 120 adult male Wister rats (90 days old) were divided into four groups (30 males each); control (C) group (drinking water was supplied), Cm group (camel milk was supplied at 10ml/kg bw/day), Af group (AfB1 was supplied at 0.3mg/kg bw/day), and CmAf group (combination treatment were supplied). The males were weighed and sacrificed on days 21 and 42 of the treatment to evaluate the histological changes of the liver, kidneys, testes, and epididymis. The body weight and testicular, epididymal, prostate, and seminal vesicle weights in the Af group decreased significantly, however this was improved in AfCm group. At day 21, histological findings of AF group revealed a decline of testicular germ layers and spermatogenesis arrest, necrotic and degenerative changes of hepatocytes and renal tubules, epididymal epithelial hyperplasia with cytoplasmic vacuolation, and depletion of sperms from the epididymis' lumen. At day 42, the severity of the histopathological changes were time-dependet. At both experimental periods, AfCm group reported substantial reduction in the degree of germ epithelium with normal seminiferous tubules epithelia with active spermatogenesis, necrosis of some hepatocytes beside infiltration of some inflammatory cells, most glomeruli and tubules were normal but some with sloughing tubular epithelia, and normal epididymalpseudostratified columnar epithelium with sperms in the lumen.