bluuebunny/crossref_metadata_2025 huggingface dataset:
Concurrent glossopharyngeal neuralgia and oromandibular dystonia resolved after microvascular decompression of the trigeminal and glossopharyngeal nerve: A rare presentation
Authors: Aldhafeeri Wafa Faisal , Alanazi Rahaf Farhan , Abdullah Jamal , Nazer Abdullrahman
Published: April 2024

Background:

This type of pain syndrome occurs suddenly and briefly, beginning unilaterally from one side of the face. Modestly stimulating speech can provoke it, affecting the ear, tongue, throat, and jaw angle. Interestingly, it is the sensory distribution of the auricular and the pharyngeal branches of the cranial nerves IX and X. People have not had a confirmed case of glossopharyngeal neuralgia (GPN), along with oromandibular dystonia (OMD). Nevertheless, usually in the medical literature, this case report supplies information about a patient who has concurrent GPN and OMD.

Case Description:

A 36-year-old male patient presented with a history of sudden onset of increasing electric pains, which were centered in the middle of the forehead to the depth of the throat and accompanied by uncontrolled movements, repetitive tongue protrusions, jaw movements, and recurrent pervasive gagging reflexes. Magnetic resonance imaging showed that a vascular loop of the superior cerebellar and anterior inferior cerebellar artery on the left side had crossed over and compressed those nerves. Decompression surgery in the left glossopharyngeal and trigeminal nerves cured all the symptoms.

Conclusion:

The simultaneous occurrence of GPN and OMD is rare, complex, and challenging from the clinician’s viewpoint in the management of similar but different pathologies. A detailed history was taken, and a radiological investigation was called to devise a management plan in the context of understanding the pathology of both disorders.
Successful Salvage of Venous Thromboembolism Manifested as Free Flap Venous Insufficiency and Pulmonary Embolism in a Patient Receiving Microvascular Free Flap Reconstruction after Oral Cancer Resection: A Case Report and Review of the Literature
Authors:   Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C, M Shih-Hao , W Szu-Hsien ,   Department of Surgery, School of Medicine, National Defense Medical Center, Taipei, Taiwan, R.O.C
Published: April 2024

Venous insufficiency is a severe complication of microvascular free tissue transfers, which may ultimately cause free flap failure. In this report, we describe a case of microvascular free flap reconstruction after oral cancer resection, complicated with venous thromboembolism manifested as venous insufficiency of the flap and pulmonary embolism (PE). Antithrombin III deficiency related heparin resistance was found during the course of treatment. With flap reexploration, veno-venous extracorporeal membrane oxygenation (V-V ECMO) and systemic anticoagulation therapy with a direct oral anticoagulant (DOAC), the flap was successfully salvaged and the patient recovered well.
Pitts-Hoppkins Syndrome Post Severe Exacerbation of Asthma: About a Case: 3-Year-Old Child
Authors:   Child Resuscitation Anesthesia Department, CHU Rabat, CHU Ibn Sina – Morocco, F Filahi , S Alami ,   Child Resuscitation Anesthesia Department, CHU Rabat, CHU Ibn Sina – Morocco, D Ouadraogo ,   Child Resuscitation Anesthesia Department, CHU Rabat, CHU Ibn Sina – Morocco, A Bentalha ,   Child Resuscitation Anesthesia Department, CHU Rabat, CHU Ibn Sina – Morocco, A El Koraichi ,   Child Resuscitation Anesthesia Department, CHU Rabat, CHU Ibn Sina – Morocco, S Eccherif ,   Child Resuscitation Anesthesia Department, CHU Rabat, CHU Ibn Sina – Morocco
Published: April 2024

In some children recovering from an acute asthma attack, flaccid paralysis similar to poliomyelitis has been observed [1-3]. This condition, first discovered in Australia in 1974, is known as Hopkins Syndrome (HS) [4]. No specific virus was identified in these patients, who were usually correctly vaccinated against poliomyelitis [5]. This disorder primarily affects cells in the anterior horn of the spinal cord. It is characterized by a rapid progression of paralysis usually affecting one limb, leaving the child with severe and permanent weakness. Sensation is usually preserved, and Cerebrospinal Fluid (CSF) analysis often shows a slight increase in white blood cells and a slight increase in protein [6-8]. Magnetic Resonance Imaging (MRI) alterations in the anterior horn have been documented [9]. Some children show signs of an underlying immune deficiency [10]. We report the case of a 3-year-old boy who presented with an episode of Hopkins syndrome.
Plasma Ionic Levels in Patients with Septic Shock Before and After Treatment with Different Antioxidants
Authors:   Department of Critical Care, American British Cowdray (ABC) Medical Center, IAP, Mexico, A Aisa-Álvarez , ME Soto ,   Research Direction, National Institute of Cardiology and Researcher American British Cowdray (ABC) Medical Center, IAP, Mexico, C Huesca-Gómez ,   Department of Physiology, National Institute of Cardiology “Ignacio Chávez”, México, YE Torres-Paz ,   Department of Physiology, National Institute of Cardiology “Ignacio Chávez”, México, G Fuentevilla-Álvarez ,   Department of Physiology, National Institute of Cardiology “Ignacio Chávez”, México, G Camarena-Alejo ,   Department of Critical Care, American British Cowdray (ABC) Medical Center, IAP, Mexico, J Franco-Granillo ,   Department of Critical Care, American British Cowdray (ABC) Medical Center, IAP, Mexico, R Cruz Soto ,   Department of Critical Care, American British Cowdray (ABC) Medical Center, IAP, Mexico, I Pérez-Torres ,   Department of Cardiovascular Biomedicine, National Institute of Cardiology “Ignacio Chávez”, México, R Gamboa ,   Department of Cardiovascular Biomedicine, National Institute of Cardiology “Ignacio Chávez”, México
Published: April 2024

Background: Septic shock is the most severe form of sepsis, and electrolyte levels have been associated with septic shock in intensive care units, although it has been underdiagnosed Objective: This study aimed to evaluate plasma ionic levels in patients with septic shock before and after treatment with different antioxidants. Methods: Plasma ionic levels were measured in 129 healthy control patients, 14 with septic shock without treatment, and 51 under treatment with four different antioxidant therapies. Results: We found essential differences when comparing the plasma ionic levels of K+, Ca2+ y Mg2+ between the control groups versus both groups with sepsis at the time of hospital admission. In patients with septic shock, there is a decrease in the serum levels of ionized Na+, K+, Cl- and Ca2+ and Mg2+ Antioxidant treatment as an adjunct to the standard management of patients with septic shock increases the electrolyte deficit. Conclusions: The correction of the magnesium deficit also increases serum calcium and potassium levels. Managing antioxidant therapy in patients with septic shock within the first hours of admission can help improve their ionic levels of Ca2+ y Mg2+, mainly in patients with lung damage.
Using a pruned basis and a sparse collocation grid with more points than basis functions to do efficient and accurate MCTDH calculations with general potential energy surfaces
Authors: Wodraszka Robert , Carrington Tucker
Published: April 2024

We propose a new collocation multi-configuration time-dependent Hartree (MCTDH) method. It reduces point-set error by using more points than basis functions. Collocation makes it possible to use MCTDH with a general PES without computing any integrals. The collocation points are associated with a basis larger than the basis used to represent wavefunctions. Both bases are obtained from a direct product basis built from single-particle functions by imposing a pruning condition. The collocation points are those on a sparse grid. Heretofore, collocation MCTDH calculations with more points than basis functions have only been possible if both the collocation grid and the basis set are direct products. In this paper, we exploit a new pseudo-inverse to use both more points than basis functions and a pruned basis and grid. We demonstrate that, for a calculation of the the lowest 50 vibrational states (energy levels and wavefunctions) of CH$_2$NH, errors can be reduced by two orders of magnitude by increasing the number of points, without increasing the basis size. This is true also when unrefined time-independent points are used.
On the continuous modeling of fluid and solid states
Authors: Chaparro Gustavo , Müller Erich A.
Published: April 2024

For over 150 years, the “holy grail” of thermodynamic modeling has been to express the free energy of matter as a single analytical expression from where all other thermodynamic properties can be derived. This vision was partially achieved with the pioneering suggestion of J. D. van der Waals of modeling the gas and liquid states with a continuous polynomial. van der Waals' work spawned a century of development of equations of state (EoSs) for fluid phases and fluid phase equilibria. However, the extension to include the solid phase has largely been ignored, presumably out of the inherent difficulties in expressing the corresponding thermodynamic surface analytically. In this contribution, we resolve this century-old problem by presenting a procedure where an equation of state based on artificial neural networks is built based on an extensive database of accurate molecular dynamics data. The use of this EoS is exemplified here for the Mie particle, providing a single thermodynamically consistent model that continuously represents the fluid (gas, liquid and supercritical) and crystalline states. Apart from accurately predicting the derivative properties, the equation exhibits metastable regions characterized by van der Waals loops that correctly quantify the existence of vapor-liquid, solid-liquid, and solid-vapor equilibria along with the position of the critical and triple points. This new paradigm in EoS development is a pathway for the rapid deployment of models for complex matter and its interpretation opens doors to studying the transition regions between different aggregation states.
ATTITUDES TOWARDS LEARNING PIANO AMONG UNDERGRADUATES IN WEIFANG CHINA
Authors: Meiling Ju , Yoong Chong Yew
Published: April 2024

The piano is one of the instruments that is widely used in music education since it may be used for playing, learning to read and listen, comprehending music, acquiring musical knowledge (composition), and serving as the foundation for other musical endeavors by music educators. As vital as studying the piano may seem, a student’s attitude toward the instrument will ultimately determine whether or not they succeed in their endeavors to become a professional instructor or performer. Hence, the purpose of this study was to investigate the attitudes of undergraduates in Weifang to the learning of piano and to know the students’ attitudes would differ based on gender. The study’s methodology was quantitative in nature. The study population consisted of Weifang undergraduate students. Accordingly, 321 pupils were chosen as a sample. An online attitude survey about piano study, the classroom setting, the skills taught in piano lessons, and playing the piano was given to the respondents in order to gauge their attitudes toward piano lessons. The instrument, was 5-point Likert scale. The data collected were analysed using SPSS. The effect of gender was determined with the aid of t-test. It was found that the undergraduates had positives attitude to learning of piano. The finding also revealed that there was a significant difference in the attitude of male and female respondents with female respondents having higher mean value.
Videojuego para el aprendizaje de lógica de programación
Authors: Bermón Angarita Leonardo , Prieto Taborda María Amparo , Escobar Márquez Juan Diego , Vergara Díaz Juan David
Published: April 2024

Los cursos de programación de computadores abordan algunos conceptos y elementos que son difíciles de aprender por los estudiantes. Una estrategia para facilitar el aprendizaje de dichos conceptos y elementos es la utilización de videojuegos que ayuden a presentar y reforzar los conceptos de lógica y estructuras computacionales. Este artículo presenta el desarrollo de un videojuego para dispositivos móviles orientado al aprendizaje de la lógica de programación en estudiantes de básica secundaria. La validación realizada con un grupo de estudiantes mostró un amplio interés por la programación utilizando videojuegos considerándolo un recurso didáctico, divertido y con una dificultad alta. El videojuego desarrollado facilita el aprendizaje de conceptos de programación estructurada.
Implementación de la metodología clínicas de ingeniería en la carrera de Ingeniería Industrial
Authors: Jimenez Ramirez Roberto , Guicharrousse Luza Pablo , Diaz Ramirez Jorge
Published: April 2024

El diseño curricular de Ingeniería Industrial contempla prácticas, sin embargo, la formación actual de los ingenieros requiere aún mayor cantidad de trabajo práctico. En este trabajo de investigación se realiza una aplicación experimental de la metodología de Clínicas de Ingeniería. En esta metodología los estudiantes son actores centrales en la solución de problemas reales, partiendo de un diseño y concluyendo en un producto real. La metodología se aplicó al Taller de Integración de Conocimientos. Cada año los estudiantes logran resolver el desafío propuesto y llegar a productos finales útiles. Mediante un cuestionario se obtuvo que los estudiantes se manifiestan satisfechos o muy satisfechos en un 87% con la metodología utilizada y en un 90% recomendarían que se aplique en otras asignaturas. Los estudiantes también califican el curso como altamente útil para el logro de competencias transversales como: trabajo en equipo, comunicación oral y escrita, y uso de TICs.
Portulan Club expedition to the Munku-Sardyk region in 2022
Authors:   Sochava Institute of Geography, CO RAS, Kitov A.D. , Kovalenko S.N. ,   Irkutsk State University, Gergenov I.I. ,   Irkutsk State University
Published: April 2024

We summarize the results of the 2022 expeditions of the student-teaching club "Portulan" to the Munku-Sardyk mountain area, which included field scientific research of nival-glacial formations, river and near-slope aufeis, slope forms of relief and processes forming them in the valleys of the Bely Irkut, Muguvek, Bugovek rivers: regime surveys of high-mountainous aufeis, as well as traditionally conducted monitoring of weather and temperature regime over the entire vertical extent of the relief, study of the stone stream "Active" and summer condition of glaciers, aufeis and snowfields.
Генерация ОВП-импульсов в подземных водах побережья Байкала в феврале-марте 2024 г.: 30-суточный мониторинг в режиме реального времени от зарождения до угасания
Authors:   Limnological Institute, SB RAS, Aslamov I.A. , Rasskazov S.V. ,   Institute of the Earth's Crust SB RAS,   Irkutsk State University, Snopkov S.V. ,   Institute of the Earth's Crust SB RAS,   Limnological Institute, SB RAS, Archipenko V.I. ,   Irkutsk National Research Technical University, Ilyasova A.M. ,   Institute of the Earth's Crust SB RAS, Chebykin E.P. ,   Limnological Institute, SB RAS,   Institute of the Earth's Crust SB RAS
Published: April 2024

Real-time monitoring of coastal groundwater of Lake Baikal in a well of the Kultuk village from February 7 to March 7, 2024 shows negative ORP pulses. The following intervals are distinguished: I – February 07–13 (pulses 1–26), IIa – February 13–18 (pulses 27–43), IIb – February 18–22 (pulses 43–54), IIIа – February 22–26 (pulses 55–71), IIIb – February 26 – March 4 (pulses 71–80), VIa – March 4–6 (pulses 80–82), and March 6–7 (pulses 82–83). These intervals demonstrate a distinct development of the pulse-generating process from its origin (interval I) through successive intensification (intervals IIa, IIb, and IIIa) to degeneration (intervals IIIb and IV). It is assumed that the 30-day activity of the pulse-generating process is regulated by neap and spring lunar-solar tides.
Determinants of Corporate Credit Growth in Ukraine: The Application of Bank Lending Survey Data
Authors: Hlazunov Anatolii
Published: April 2024

This study investigates the determinants of corporate lending in Ukraine, with a focus on distinguishing between supply and demand factors. It uses a two-step process to build a credit standards index (CSI) based on disaggregated data from a Ukrainian bank lending survey (BLS). This paper describes the factors that are significant for corporate lending development in Ukraine. It contributes to the existing literature by developing a measure of corporate loan supply and analyzing its ability to explain corporate credit growth in Ukraine by using bank-level BLS data. First, a panel ordered logit model is used to transform categorical data into a continuous index that measures the likelihood of credit standard tightening. Second, the study examines how this index affects new corporate lending in both national and foreign currencies. It is found that the credit standard index is influenced by exchange rate movements (with depreciations leading to tighter standards), bank liquidity, and bank competition. It is also demonstrated that the CSI has a negative impact on corporate loans in national currency, with a more pronounced effect on smaller banks.
Gender and Feminism in an Islamic Perspective
Authors: Lazuardi Fakhrul , Shamsu Lilly Suzana binti Haji
Published: April 2024

The great dominance of men in various areas of life and the injustice felt by Western women had an impact on the emergence of the feminist movement, which initially only demanded equal rights to continue education in all aspects, including gender equality. This study uses a literature review method on writings that talk about Islam and Feminism. From the research results, it was found that in Islam, the roles of men and women in terms of politics, economics, education, social life and legal sanctions have the same portions and responsibilities. Islamic texts urge the progress and role of women in various areas of good life.
KONSEP MULTIKULTURALISME DALAM RISALAH ISLAM BERKEMAJUAN MUHAMMADIYAH
Authors: Lukman Dikdik Dahlan , Demetrius Siga Willfridus
Published: April 2024

Penelitian ini dimaksudkan untuk menggali respons Muhammadiyah terhadap konsep Multikulturalisme, khususnya yang termaktub dalam konsep Risalah Islam Berkemajuan.  Metode penelitian yang dipergunakan adalah analisis wacana dengan pendekatan kualitatif. Sumber utama datanya sendiri tentu saja adalah Tanfidz Keputusan Muktamar Muhammadiyah ke 48 di Surakarta terutama pada bagian Risalah Islam Berkemajuan yang kemudian disingkat RIB. Langkah-langkah yang dilakukan peneliti adalah melakukan inventarisasi, kategorisasi dan interpretasi data, agar mendapat kesimpulan. Penelitian ini menguatkan bahwa Islam sebagaimana yang dipahami, dilaksanakan, diperjuangkan dan didakwahkan oleh persyarikatan Muhammadiyah sangat akomodatif dengan konsep multikulturalisme, termasuk terkait prinsip-prinsip yang sangat mendasar yaitu aqidah, manhaj gerakan, dan dakwah yang dipahami oleh Muhammadiyah.
The Concept of Emergence in Non-Temporal Photography: A Non-Dualistic Approach
Authors: Simanjuntak Mardohar Batu Bornok
Published: April 2024

The problem of temporality in photography has invoked a continuous debate concerning the artistic nature of this medium. Previously taken as a different way of seeing, the time signature in a photograph became debatable along with the development of digital photography. Photography’s status as the undisputed evidence of the truth is then no longer relevant. This changes the flow of discourse to a more philosophical one. However, the debate does not provide adequate defence concerning the role of photography in the digital era. The Platonic dualistic approach, especially the Cartesian one, is responsible for this regress. Immanuel Kant introduces transcendental causality to re-examine the Cartesian legacy. This Kantian approach needs to be developed further. Stephen Hawking’s cosmological model of Quantum Field Theory (QFT) working in anti-de Sitter space (ADs) offers a better explanation on this Kantian transcendentalism. The research shows that the non-temporality of photographic images is irrelevant with the development of the medium because Hawking’s approach fits the transcendental interaction proposed by Kant. This article concludes that photography is independent from temporal demands, and that the advancement of photography lies in its potential to pursue non-duality interactions.
Kritik Pemikiran Theodor Adorno tentang Status Heteronom Musik Jazz
Authors: Maulana Syarif
Published: April 2024

Theodor W. Adorno, a prominent thinker in the Frankfurt School, articulated his views on jazz music. He considered jazz music to be ‘functional’ music (Gebrauchsmusik) serving the bourgeois class in the post-war period. Furthermore, Adorno observed that the spontaneity in jazz music was a myth as it originated from the 32-bar song patterns akin to Broadway tunes. Through improvisation, jazz music created an illusion of uniqueness in its ‘products’ by emphasizing a distinctive style of performance. However, Adorno argued that improvisation, inadvertently, was constructed within similar constraints across various musical compositions. Additionally, in another accusation, Adorno regarded blue notes in jazz music performance as an error that one attempts to correct within their own auditory perception. Conversely, Adorno extolled music containing Arnold Schoenberg’s twelve-tone technique as autonomous art capable of social critique through internal logic within the music itself. This article seeks to pinpoint Adorno’s fallacies in his critique of jazz music, based on his failure to formulate the ontological aspects of jazz music which rigidly adhere to canonical forms, his inability to situate the potential of jazz music within autonomous art, and the distortions stemming from stereotypes about jazz music prevalent in his time.
A formal dynamic semantics of Java: an essential ingredient of Java security
Authors: Debbabi Mourad , Tawbi Nadia , Yahyaoui Hamdi
Published: April 2024

Security is becoming a major issue in our highly networked and computerized era. Malicious code detection is an essential step towards securing the execution of applications in a highly inter-connected context. In this paper, we present a formal definition of Java dynamic semantics. This semantics has been used as a basis to develop efficient, rigorous and provably correct static analysis tools and a certifying compiler aimed to detect and prevent the presence of malicious code in Java applications. We propose a small step operational semantics of a large subset for Java. The latter includes features that have not been completely addressed in the related work or addressed in another semantics style. We provide a fully-fledged semantic handling of exceptions, reachable statements, modifiers and class initialization.
Integration of home digital network and Bluetooth wireless communication system
Authors: Keller Tomasz , Modelski Józef
Published: April 2024

The paper presents new method of integration home digital network with Bluetooth wireless communication system. In this new application Bluetooth is used as one of the main ways of communication and information exchange between elements of the system for integrated, centralized control of the digital devices in the multimedia home platform. Bluetooth enables communication between multimedia gateway with the HTTP server inside and personal communication assistants (PCA), special kind of the remote control. The aim of the system is centralization of services in the multimedia gateway and integration of different services using only one control device.
Vertical cavity surface emitting lasers in radio over fiber applications
Authors: Marozsák Tamás , Udvary Eszter
Published: April 2024

Theoretical and experimental study of using direct modulated vertical cavity surface emitting lasers in radio over fiber applications is presented. The nonlinear distortion and signal to noise ratio are investigated and evaluated in case of short-range multi-carrier transmission. Nonlinear characterization and comparison of the different kind of semiconductor lasers are also presented.
Modulator structures for radio-on-fiber applications
Authors: Hum Sean Victor , Okoniewski Michał , Davies Robert J.
Published: April 2024

Traditional electro-optic modulators are not optimized for bandpass applications such as radio-on-fiber delivery systems due to their limited electro-optic response. This paper presents a resonant electrode structure that can be employed in optical modulator designs to enhance the electro-optic response of the modulator over a narrow frequency band, and improve the performance of optical radio systems. A simple model of the structure is developed, and experimental results validating the model and illustrating the effectiveness of the structure are presented.
The use of quantitative association rules in cellular network planning
Authors: Okoniewski Michał
Published: April 2024

This paper describes the problem of planning cellular network base stations with optimization to traffic requirements. This research problem was a main incentive to add some development to the theory of association rules. The new form of quantitative and multi-dimensional association rules, unlike other approaches, does not require the discretization of real value attributes as a preprocessing step. They are discovered with data driven algorithm that gives precise and complete results and has polynomial complexity for a given dimensionality.
Data mining and complex telecommunications problems modeling
Authors: Granat Janusz
Published: April 2024

The telecommunications operators have to manage one of the most complex systems developed by human beings. Moreover, the new technological developments, the convergence of voice and data networks and the broad range of services still increase this complexity. Such complex object as telecommunication network requires advanced software tools for their planning and management. Telecommunications operators collect large volumes of the data in various databases. They realize that the knowledge in these huge databases might significantly improve various organizational strategic and operational decisions. However, this knowledge is not given explicitly, it is hidden in data. Advanced methods and algorithms are being developed for knowledge extracting. In this paper we will focus on using data mining for solving selected problems in telecommunication industry. We will provide a systematic overview of various telecommunications applications.
Heuristic algorithms in topological design of telecommunication networks
Authors: Karaś Piotr
Published: April 2024

The paper addresses the generic topological network design problem and considers the use of various heuristic algorithms for solving the problem. The target of the optimisation is to determine a network structure and demand allocation pattern that would minimise the cost of the network, which is given by fixed installation costs of nodes and links and variable link capacity costs described by linear or concave functions. Input data for the optimisation consists of a list of potential node and link locations and their costs and a set of demands defined between the nodes. Since the problem is known to be NP-hard, the use of specialised heuristic algorithms is proposed. The presented approaches encompass original ideas as well as selected methods described in literature and their enhancements. The algorithms are based on the following ideas and methods: shifting of individual flows, local and global restoration of flows from chosen links or nodes, Yaged algorithm for finding local minima, Minoux greedy algorithm, simulated allocation and genetic algorithms. Efficiency of each of the proposed methods is tested on a set of numerical examples.
On the connections between optimal control, regulation and dynamic network routing
Authors: Karbowski Andrzej
Published: April 2024

he paper is devoted to studying general features of dynamic network routing problems. It is shown that these problems may be interpreted as receding horizon optimal control problems or simply regulation problems. In the basic formulation it is assumed, that the nodes have no dynamics and the only goal of the optimization mechanism is to find the shortest paths from the source to the destination nodes. In this problem the optimization mechanism (i.e. the Bellman-Ford algorithm) may be interpreted as a receding horizon optimal control routine. Moreover, there is one-to-one correspondence between the Bellman optimal cost-to-go function in the shortest path problem and the Lyapunov function in the regulation problem. At the end some results of the application of the routing optimization algorithm to an inverted pendulum regulation problem are presented.
Implementation and performance of a new multiple objective dynamic routing method for multiexchange networks
Authors: Martins Lúcia
Published: April 2024

The paper describes new developments of a multiple objective dynamic routing method (MODR) for circuit-switched networks previously presented, based on the periodic calculation of alternative paths for every node pair by a specialised bi-objective shortest path algorithm (MMRA). A model is presented that enables the numerical calculation of two global network performance parameters, when using MMRA. This model puts in evidence an instability problem in the synchronous path computation model which may lead to solutions with poor global network performance, measured in terms of network mean blocking probability and maximum node-to-node blocking probability. The essential requirements of a heuristic procedure enabling to overcome this problem and select ``good`` routing solutions in every path updating period, are also discussed.
Fair resource allocation schemes and network dimensioning problems
Authors: Ogryczak Włodzimierz , Wierzbicki Adam , Śliwiński Tomasz
Published: April 2024

Resource allocation problems are concerned with the allocation of limited resources among competing activities so as to achieve the best overall performances of the system but providing fair treatment of all the competitors. Telecommunication networks are facing the increasing demand for Internet services. Therefore, a problem of network dimensioning with elastic traffic arises which requires to allocate bandwidth to maximize service flows with fair treatment of all the services. In such applications, the so-called max-min fairness (MMF) solution concept is widely used to formulate the resource allocation scheme. This guarantees the fairness but may lead to significant losses in the overall throughput of the network. In this paper we show how multiple criteria optimization concepts can be used to generate various fair resource allocation schemes. The solution concepts are tested on the network dimensioning problem and their abilities to model various preferences are demonstrated.
Military route planning in battlefield simulation: effectiveness problems and potential solutions
Authors: Tarapata Zbigniew
Published: April 2024

Path searching is challenging problem in many domains such as simulation war games, robotics, military mission planning, computer generated forces (CGF), etc. Effectiveness problems in military route planning are related both with terrain modelling and path planning algorithms. These problems may be considered from the point of view of many criterions. It seems that two criterions are the most important: quality of terrain reflection in the terrain model and computational complexity of the on(off)-line path planning algorithm. The paper deals with two above indicated problems of route planning effectiveness. Comparison of approaches used in route planning is presented. The hybrid, terrain merging-based and partial path planning, approach for route planning in dynamically changed environment during simulation is described. It significantly increase effectiveness of route planning process. The computational complexity of the method is given and some discussion for using the method in the battlefield simulation is conducted. In order to estimate how many times faster we can compute problem for finding shortest path in network with n big squares (b-nodes) with relation to problem for finding shortest path in the network with V small squares (s-nodes) acceleration function is defined and optimized.
The Integrated Data Environment: a new tool for interoperability and effective data integration for command and control
Authors: Wilkes Jon
Published: April 2024

This paper describes an ongoing effort at NC3A to provide one integrated database which contains data from a number of different sources. Initially, these sources are legacy NATO systems. Later, other systems, including messaging interfaces of a wide variety, and national systems, will be added. A common data model is used as the lingua franca between systems. A COTS product has been identified that creates translator boxes to provide interfaces to and from the legacy systems.
A comparison of ATM and IP QoS network capabilities for handling LAN traffic with QoS differentiation
Authors: Bęben Andrzej , Burakowski Wojciech , Pyda Piotr
Published: April 2024

Now, a network operator must choose between two packet switched technologies for providing QoS in WAN networks, which are ATM and IP QoS [3, 4, 9]. As ATM has reached the maturity with capabilities for offering a number of different network services (i.e. CBR, VBR, ABR, UBR, GFR), the IP QoS with network services like expedited forwarding, assured forwarding, etc. is still at developing phase but nevertheless is commonly regarded as capable to guarantee in near future similar QoS level as ATM. This paper tries to compare the efficiency of the mentioned technologies (in case of IP QoS network the AQUILA network concept [1, 2] is investigated) for handling traffic generated by LANs with QoS differentiation. This is extremely required since the applications running in LAN differ in QoS requirements and emitted traffic profiles (streaming, elastic). Therefore, a classification process of outgoing LAN traffic into predefined sub-streams should be performed at the entry point to WAN network (edge ATM switch or IP router). Furthermore, particular sub-streams are submitted to adequate WAN network service, available in ATM or IP QoS. The paper presents the experimental results, measured in the test bed, corresponding to QoS level and QoS differentiation provided by ATM and IP QoS core. For this purpose, a set of representative applications currently available to a LAN user was selected demanding from the core different QoS level. They correspond to streaming applications like VoIP with QoS objectives represented mainly by packet delay characteristics and elastic applications controlled by TCP protocol with minimum guaranteed throughput/goodput as target.
Remarks on improved inversion attacks on nonlinear filter generators
Authors: Górska Anna , Górski Karol
Published: April 2024

The subject of this paper are inversion attacks on stream ciphers (nonlinear filter generators), which were first introduced by Golić [3] and extended by Golić, Clark and Dawson [4]. These original attacks have computational complexity O(2^M), where M is the so-called "memory size" - distance between outer taps to filter function. In [6] we have proposed improved inversion attacks which have computational complexity O(2^{r-m}), where r denotes the length of the shift register and m denotes the largest gap between cells with taps to filter function or to connection polynomial. In this paper we describe further extension of our previous results obtained by considering shifts of the feedback polynomial which maximise the largest gap between cells with taps to filter function or to connection polynomial. We show that the previously proposed set of design criteria [3, 6] does not prevent the new version of improved inversion attack and we propose an additional criterion based on the relationship between positions of taps to filter function and positions of taps to the multiples of the connection polynomial.
Error probability and error stream properties in channel with slow Rician fading
Authors: Noga Krystyna M.
Published: April 2024

In a radio communication channel wave parameters fluctuate randomly. The signal envelope undergoes deep fades. When binary information is transmitted through such a channel, fading causes random variation of probabilities of error associated with the detection of individual elementary signals, which produces a clustering of errors. The paper presents an analytical description of the probability of bit error in the channel with very slow Rician fading and Gaussian noise for noncoherent and coherent detection. Digital systems employing error detection or error correction coding are generally based on the transmission of blocks of N sequential bits. Expressions are given for the probability of n errors occurring in N bits (weighted spectrum of errors) and the probability of more than n errors in a block of N bits (block error probability) for noncoherent frequency shift keying (NCFSK). Also the calculations are presented graphically.
ENHANCING THE PROPERTIES OF CONCRETE BY USING ALKALINE SOLUTION AND ITS COMPARATIVE STUDY WITH CONVENTIONAL CONCRETE
Authors: S. J. Aher  , S.P. Mandhare  , S.S. Ghawate  , R. Gite  , Prof.A. H. Jamale
Published: April 2024

The main aim of this project was to reduce the use of cement so as to produce a CO2 emission free cementitious material and Geopolymer Concrete (GPC) was the best alternative solution present out there. GPC utilizes industrial waste material such as fly ash from thermal power station to provide practical solution to waste management as well as environmental protection method. In this study we have used low calcium fly ash (ASTM class F), along with fly ash, water was enable to bind effectively. Therefore we also have replaced water completely with alkaline solution to hold fly ash, aggregate and sand together. The alkaline solutions we have used are – sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). The main purpose to introduce alkaline solution was polymerization. That is the reason scientist Davidovits named this mix as geopolymer concrete.GPC required high temperature for curing to happen the polymerization, Thus, the curing of GPC was done at ambient temperature without keeping it in water unlike the conventional concrete. Amongst both the alkali solutions i.e. NaOH and Na2SiO3, sodium hydroxide was used in different molar concentration of 10M, 12M and 14M with keeping silicate to hydroxide ratio constant as 1.5, three different sets of 9 cubes, 3 beams and 3 cylinders were casted.
Teachers’ self-reported instructional practices for reading comprehension instruction to non-readers
Authors: Mpofu Nhlanhla , Mavambe Tsitsi
Published: April 2024

This study focuses on the instructional strategies employed by experienced teachers to teach reading comprehension to non-readers in the Namibian upper primary phase within mainstream classrooms. Existing literature suggests that the support provided by experienced teachers is critical for non-readers. However, little is known about the specific strategies used by primary school ESL (English as a Second Language) teachers in Namibia for this purpose. To address this gap, the study utilized a qualitative approach with an exploratory case study design. Data was gathered through class observations and two stimulated recall interviews conducted before and after the observations. Five Grade 5 teachers in the Oshana region of Namibia were purposefully selected as participants. The findings reveal that the teachers employed various strategies to enhance reading comprehension among non-readers. Pre-reading activities involved activating non-readers’ linguistic schema using manipulatives, dictionaries, and glossaries to define new words. Linguistic resources such as flashcards, wall posters, real objects, and pictures were used to expand non-readers’ vocabulary knowledge. Instructional reinforcement strategies, like motivation, activation of prior knowledge through oral discussions, games related to the text, and discussions of reading comprehension rules, were also utilized to support non-readers’ comprehension. The findings hold value for Grade 5 ESL teachers, providing them with effective teaching strategies and opportunities for self-reflection when teaching reading comprehension to non-readers. Additionally, ESL subject advisors can benefit from understanding the needs of primary school non-readers in the Ompundja circuit, Oshana region, to offer appropriate support to upper primary phase ESL teachers in mainstream classes.
The Benefits of The Asynchronous Online Learning Model at Post-Pandemic Covid-19: Students’ Perception
Authors: Sakkir Geminastiti , Trisnawati Ice , Nurfadhilah Auliyanti Sahril
Published: April 2024

In the rapidly evolving landscape of education, asynchronous online learning has emerged as a significant model, offering students the flexibility to access materials and lectures at their convenience. This research aimed to delve deeper into students' perceptions of the benefits of the asynchronous online learning model at Institut Parahikma Indonesia, a prominent educational institution. Employing a qualitative descriptive approach complemented by a phenomenological design, the study sought to capture the lived experiences and nuanced views of students regarding this learning model. Data were meticulously gathered through semi-structured interviews, ensuring a comprehensive understanding of students' perspectives. A total of seven respondents participated, comprising three males and four females from Institut Parahikma Indonesia. These participants were selected using a convenience sampling method, providing a diverse range of insights. The findings of this study were illuminating. Students predominantly perceived the asynchronous learning model as beneficial, highlighting aspects such as motivated learning, insightful experiences, flexibility in managing their time, and the advantage of accessing easier-to-understand material. They appreciated the ability to learn at their own pace, revisit lectures, and balance their studies with other commitments. However, it's noteworthy that not all feedback was overwhelmingly positive. A segment of students expressed a longing for direct, synchronous interactions, indicating a preference for traditional learning dynamics. The present study offers a fresh perspective on the asynchronous online learning model, emphasizing its benefits while also shedding light on areas of potential improvement. The insights garnered hold significant implications for educational institutions, policymakers, and educators, urging them to consider a more blended approach that caters to the diverse needs of students.
Utilizing Facebook And Instagram (Facegram) To Create A Digital Learning Program For Integrated English Skills
Authors: Mahmud Murni , Burhamzah Muftihaturrahmah , Amin Fatimah Hidayahni
Published: April 2024

The objective of this study is the development of a digital educational tool for English language instruction by utilising social media platforms, specifically Facebook and Instagram. The ADDIE (Analyse, Design, Develop, Implement, and Evaluate) paradigm, developed by Gagne et al. in 2005, was employed in the research and development (R&D) project under consideration. The primary objective of this study is to demonstrate the process of creating a digital learning module for Integrated English Skills (IIC) education by utilising social media posts from Facebook and Instagram (FaceGram). Facebook and Instagram, because to their nature as social media platforms, are perceived as attractive resources for the purpose of facilitating Integrated English Skills instruction. The utilisation of Facebook and Instagram as platforms for English language training is anticipated to undergo a transformative process, resulting in a pedagogical approach that is both intellectually stimulating and distinctively innovative. This study aims to enhance the four English language skills, namely writing, speaking, reading, and listening, through the utilisation of Facebook and Instagram posts as educational resources. This study aims to provide several illustrative instances of information sourced from Facebook and Instagram that can be effectively utilised for the purpose of instructing Integrated English Skills within the context of digital learning. The present study employed a survey methodology within the English Literature Programme at Universitas Negeri Makassar. The participants consisted of students enrolled in the Integrated English Skills course. The findings of this study could serve as a valuable resource for educators of English as a second language, enabling them to develop engaging and distinctive instructional materials.
Empowering English Language Learning: Unleashing the Potential of Cooperative Learning Model at SMKN 3 Takalar
Authors: Hudriati Andi , Sulastri Sulastri , Rahmat Rahmat
Published: April 2024

The primary aim of adopting the cooperative learning approach in the context of English language learning is to investigate the potential improvement in students' English language competency within the X TKJ 3 class at SMKN 3 Takalar. The study used a research methodology known as classroom action research, commonly referred to as PTK (Praktikum Tindakan Kelas). The research was conducted over a span of two cycles. The statistics about student learning activities during the initial session of cycle 1 reveals an average activity level of 74%. Following this, during the subsequent meeting, there was seen a rise in the mean activity level, reaching 84%. The data regarding the advancement of student learning activities during cycle 2 meeting 1 indicated an average increase of 91%, which subsequently escalated to 96% during meeting 2. The findings from the study on the impact of cooperative learning model on English language learning outcomes in cycle 1 indicated an average score of 72. Furthermore, it was noted that a significant proportion of students, specifically 50%, were able to successfully attain the intended learning outcomes. During the second cycle, a notable rise was observed, as shown by an average score of 81 or a completion rate of 100% among the student population. Therefore, it can be deduced that the utilization of cooperative learning models holds the capability to augment the outcomes of English language acquisition among students in class X TKJ 3 at SMKN 3 Takalar.
Pytając o ludzkie miasto – osiem rad Jane Jacobs
Authors: Dymarski Zbyszek
Published: April 2024

Autor uważa, że przy badaniu miast najważniejsze są kryteria, które biorą pod uwagę potrzeby oraz oczekiwania ich mieszkańców i zarazem ich najważniejszych użytkowników. Ebeznard Howard i Le Corbusier sądzili, że można z góry, według jednego pomysłu, wymyślić, zaprojektować i urządzić miasto. Klęski ich projektów wykazały błędność takiego podejścia. Według Jane Jacobs obserwacja miejskiego życia i praktykowanie go, to najlepszy punkt wyjścia do wypracowania kryteriów oceny miasta. Takie podejście prowadzi do docenienia roli chodnika, nieśpiesznej ulicy, pierzowej zabudowy oraz wielofunkcyjności kwartałów. Ich właściwe funkcjonowanie stymuluje rodzenie się więzi sąsiedzkich i towarzyskich. Sprawia, że miasto staje się ludzkim miastem.
Przestrzeń centralna miasta w ujęciu socjologicznym – analiza teoretyczna i empiryczne egzemplifikacje (na przykładzie Gdańska)
Authors: Załęcki Jarosław
Published: April 2024

Celem niniejszego artykułu jest analiza zjawisk i procesów społecznych zachodzących w przestrzeni centrum miasta oraz ukazanie psychologicznych mechanizmów percepcji i waloryzacji miejsc i obiektów zlokalizowanych w centrum miasta. W procesie percepcji i waloryzacji mieszkańcy przypisują poszczególnym fragmentom przestrzeni funkcje, sens i znaczenia. Przestrzeń centralna jest komunikatem, zawierającym liczne znaki, kody i szyfry, które są przez mieszkańców odczytywane, klasyfikowane, porządkowane i oceniane. W pierwszej części artykułu Autor przywołuje teoretyczne analizy i rozważania odnoszące się do centrum miasta, w drugiej skupia uwagę na analizie wyników badań empirycznych uzyskanych na terenie Gdańska.