bluuebunny/crossref_metadata_2025 huggingface dataset:
Bringing Compiling Databases to RISC Architectures
Authors: Gruber Ferdinand , Bandle Maximilian , Engelke Alexis , Neumann Thomas , Giceva Jana
Published: April 2023

Current hardware development greatly influences the design decisions of modern database systems. For many modern performance-focused database systems, query compilation emerged as an integral part and different approaches for code generation evolved, making use of standard compilers, general-purpose compiler libraries, or domain-specific code generators. However, development primarily focused on the dominating x86-64 server architecture; but neglected current hardware developments towards other CPU architectures like ARM and other RISC architectures.

Therefore, we explore the design space of code generation in database systems considering a variety of state-of-the-art compilation approaches with a set of qualitative and quantitative metrics. Based on our findings, we have developed a new code generator called FireARM for AArch64-based systems in our database system, Umbra. We identify general as well as architecture-specific challenges for custom code generation in databases and provide potential solutions to abstract or handle them.

Furthermore, we present an extensive evaluation of different compilation approaches in Umbra on a wide variety of x86-64 and ARM machines. In particular, we compare quantitative performance characteristics such as compilation latency and query throughput.

Our results show that using standard languages and compiler infrastructures reduces the barrier to employing query compilation and allows for high performance on big data sets, while domain-specific code generators can achieve a significantly lower compilation overhead and allow for better targeting of new architectures.
A Design Space Exploration and Evaluation for Main-Memory Hash Joins in Storage Class Memory
Authors: Huang Wentao , Ji Yunhong , Zhou Xuan , He Bingsheng , Tan Kian-Lee
Published: April 2023

In this paper, we seek to perform a rigorous experimental study of main-memory hash joins in storage class memory (SCM). In particular, we perform a design space exploration in real SCM for two state-of-the-art join algorithms: partitioned hash join (PHJ) and non-partitioned hash join (NPHJ), and identify the most crucial factors to implement an SCM-friendly join. Moreover, we present a rigorous evaluation with a broad spectrum of workloads for both joins and provide an in-depth analysis for choosing the most suitable algorithm in real SCM environment. With the most extensive experimental analysis up-to-date, we maintain that although there is no one universal winner in all scenarios, PHJ is generally superior to NPHJ in real SCM.
Efficient Black-Box Checking of Snapshot Isolation in Databases
Authors: Huang Kaile , Liu Si , Chen Zhenge , Wei Hengfeng , Basin David , Li Haixiang , Pan Anqun
Published: April 2023

Snapshot isolation (SI) is a prevalent weak isolation level that avoids the performance penalty imposed by serializability and simultaneously prevents various undesired data anomalies. Nevertheless, SI anomalies have recently been found in production cloud databases that claim to provide the SI guarantee. Given the complex and often unavailable internals of such databases, a black-box SI checker is highly desirable.

In this paper we present PolySI, a black-box checker that efficiently checks SI and provides understandable counterexamples upon detecting violations. PolySI builds on a characterization of SI using generalized polygraphs (GPs), for which we establish its soundness and completeness. PolySI employs an SMT solver and also accelerates SMT solving by utilizing a compact constraint encoding of GPs and domain-specific optimizations for pruning constraints. As our extensive assessment demonstrates, PolySI successfully reproduces all of 2477 known SI anomalies, detects novel SI violations in three production cloud databases, identifies their causes, outperforms the state-of-the-art black-box checkers under a wide range of workloads, and can scale up to large workloads.
Panakos: Chasing the Tails for Multidimensional Data Streams
Authors: Zhao Fuheng , Khan Punnal Ismail , Agrawal Divyakant , Abbadi Amr El , Gupta Arpit , Liu Zaoxing
Published: April 2023

System operators are often interested in extracting different feature streams from multi-dimensional data streams; and reporting their distributions at regular intervals, including the heavy hitters that contribute to the tail portion of the feature distribution. Satisfying these requirements to increase data rates with limited resources is challenging. This paper presents the design and implementation of Panakos that makes the best use of available resources to report a given feature's distribution accurately, its tail contributors, and other stream statistics (e.g., cardinality, entropy, etc.). Our key idea is to leverage the skewness inherent to most feature streams in the real world. We leverage this skewness by disentangling the feature stream into hot, warm, and cold items based on their feature values. We then use different data structures for tracking objects in each category. Panakos provides solid theoretical guarantees and achieves high performance for various tasks. We have implemented Panakos on both software and hardware and compared Panakos to other state-of-the-art sketches using synthetic and real-world datasets. The experimental results demonstrate that Panakos often achieves one order of magnitude better accuracy than the state-of-the-art solutions for a given memory budget.
Flare: A Fast, Secure, and Memory-Efficient Distributed Analytics Framework
Authors: Li Xiang , Li Fabing , Gao Mingyu
Published: April 2023

As big data processing in the cloud becomes prevalent today, data privacy on such public platforms raises critical concerns. Hardware-based trusted execution environments (TEEs) provide promising and practical platforms for low-cost privacy-preserving data processing. However, using TEEs to enhance the security of data analytics frameworks like Apache Spark involves challenging issues when separating various framework components into trusted and untrusted domains, demanding meticulous considerations for programmability, performance, and security.

Based on Intel SGX, we build Flare, a fast, secure, and memory-efficient data analytics framework with a familiar user programming interface and useful functionalities similar to Apache Spark. Flare ensures confidentiality and integrity by keeping sensitive data and computations encrypted and authenticated. It also supports oblivious processing to protect against access pattern side channels. The main innovations of Flare include a novel abstraction paradigm of shadow operators and shadow tasks to minimize trusted components and reduce domain switch overheads, memory-efficient data processing with proper granularities for different operators, and adaptive parallelization based on memory allocation intensity for better scalability. Flare outperforms the state-of-the-art secure framework by 3.0× to 176.1×, and is also 2.8× to 28.3× faster than a monolithic libOS-based integration approach.
Explaining Dataset Changes for Semantic Data Versioning with Explain-Da-V
Authors: Shraga Roee , Miller Renée J.
Published: April 2023

In multi-user environments in which data science and analysis is collaborative, multiple versions of the same datasets are generated. While managing and storing data versions has received some attention in the research literature, the semantic nature of such changes has remained under-explored. In this work, we introduce Explain-Da-V, a framework aiming to explain changes between two given dataset versions. Explain-Da-V generates
explanations
that use
data transformations
to explain changes. We further introduce a set of measures that evaluate the validity, generalizability, and explainability of these explanations. We empirically show, using an adapted existing benchmark and a newly created benchmark, that Explain-Da-V generates better explanations than existing data transformation synthesis methods.
Using Deadlifts as a Postactivation Performance Enhancement Strategy in Warm-ups in Football
Authors: Abade Eduardo , Brito João , Gonçalves Bruno , Saura Luís , Coutinho Diogo , Sampaio Jaime
Published: April 2023

Abade, E, Brito, J, Gonçalves, B, Saura, L, Coutinho, D, and Sampaio, J. Using deadlifts as a postactivation performance enhancement strategy in warm-ups in football. J Strength Cond Res XX(X): 000–000, 2022—Postactivation performance enhancement activities may be relevant warm-up strategies aiming to improve subsequent physical performance. The purpose of the current study was to investigate the effects of adding barbell deadlift or hex-bar deadlift exercises to current warm-up routines on running and jumping performances in football players. Ten highly trained male football players participated in the study during the competitive phase of the season. All players performed 3 protocols in the same week: a standard warm-up that included players' regular routines and 2 other protocols with the addition of barbell or hex-bar deadlift, after the end of the warm-up (3 sets of 3 reps, progressing set by set from 60% to 85% repetition maximum). All protocols had the same time interval between pretest (immediately after the warm-up) and posttest (15 minutes after the warm-up). Vertical jumping (countermovement jump [CMJ]; Abalakov jump [AJ]) and running performances (505 test) were impaired 15 minutes after the standard warm-up (CMJ: −6.7 ± 4.2%; AJ: −8.1 ± 8.4%; and 505 time: 1.4 ± 2.5%). For warm-up with the addition of barbell deadlift, vertical jump increased by 4.3 ± 5.6% (Cohen's d

unb
: 0.23 [0.02–0.47]) and 505 time decreased by −5.9 ± 3.6% (Cohen's d

unb
: 0.97 [−1.68 to −0.43]). The warm-up with hex-bar deadlift led to trivial changes for CMJ and AJ, but 505 time decrease by −2.7 ± 2.6% (Cohen's d

unb
: −0.53 [−1.01 to −0.13]). The deadlift exercise can be added to warm-up routines to maintain or even enhance acute physical performance. However, coaches and practitioners should be aware that performance enhancements resultant from deadlift may vary according to individual physical profiles.
Las oraciones finales y de propósito con para (que) en un corpus de lengua oral
Authors: Benítez Rosete Valeria Amanda
Published: April 2023

Las oraciones subordinadas adverbiales finales se definen como «aquellas que expresan el fin o la intensión con que se produce la acción del verbo principal» (Galán 1992: 27). Éstas suelen asociarse con los nexos para (que) y a (que), y se identifican con un prototipo de oración final pura. El objetivo principal de este artículo es revisar la clasificación de oraciones finales subordinadas con para (que) propuesta por Galán (1992, 1999) y algunos rasgos sintáctico-semánticos a partir de datos provenientes de conversaciones orales del español de México. Además, se discute la relevancia de revisar las clasificaciones tradicionales a la luz de los estudios basados en corpus, y se contribuye con el análisis de aspectos que han recibido menos atención en la literatura sobre finales (i.e. aktionsart y correferencia de sujetos). Este trabajo sigue un enfoque descriptivo y utiliza nociones sobre construcciones complejas en los trabajos de corte tipológico-funcional (Givón 2001; Cristofaro 2003; Thompson et al 2007; Schmidtke-Bode 2009).
NURC Digital Um protocolo para a digitalização, anotação, arquivamento e disseminação do material do Projeto da Norma Urbana Linguística Culta (NURC)
Authors: Oliviera Jr. Miguel
Published: April 2023

This paper presents the procedures that have been adopted for the digitization, annotation, archiving and dissemination of a corpus of the NURC - Norma Linguística Urbana Culta [Cultured Linguistic Urban Norm] Project, an academic project that assembled one of the most influential speech corpora for linguistics research in Brazil. The goal here is to make public a protocol that was created based on the above-mentioned procedures, and to promote it as best practices to be adopted for digitizing linguistic data that were recorded in analog format, in general, and, in particular, for the digitization of the NURC Project data; and for the annotation, archiving and dissemination of linguistic data in digital format.
A percepção das vogais arredondadas do francês por falantes nativos de português brasileiro
Authors: Sarsur Érica , Rothe-Neves Rui
Published: April 2023

This research focused on the perception of the French front rounded vowel sounds by Brazilian Portuguese native speakers. The work proposal was geared towards teaching foreign languages sounds that are not present in the learner’s native language. The hypothesis of this research was that a phonetic-oriented intervention to the production of specific sounds of a foreign language may help to develop learners’ perception of them. This study aimed to test the effectiveness of such intervention. We undertook two sound perception tests, on which the participants pointed out whether or not they were listening to a specific sound present in the Brazilian Portuguese sound repertoire. As a stimulus, the task uses a continuum of isolated vowel sounds throughout nine stages between [i-y], [e-ø], [?-?]. The experimental informant group was then submitted to a didactic-phonetic intervention in the interval between tests. The results seemed to confirm the hypothesis considering that in the post-test data the majority of the participants show impressive perceptual changes. The possible contribution of this study to the foreign language teaching relies on the demonstration of the impact of a didactic oriented intervention to teach pronunciation, making use of activities that shall promote sounds production.
Algunas consideraciones sobre la estructura de la primera parte de El Caballero puntual, de Alonso J. de Salas Barbadillo
Authors: Piqueras Flores Manuel
Published: April 2023

El presente trabajo analiza la estructura de El caballero puntual en relación con su personaje principal. Proponemos que la obra se divide en dos secciones distintas, cuyas diferencias ponen de relieve la evolución posterior en la trayectoria de Salas Barbadillo.Palabras clave: Salas Barbadillo, Estructura, Corte, InterpolacionesAlcune considerazioni sulla struttura della prima parte di El caballero puntual, di Alonso J. de Salas BarbadilloRiassunto: Questo lavoro analizza la struttura de El caballero puntual, in relazione con il suo personaggio principale. Dimostriamo che l’opera si divide in due diverse sezioni, le cui differenze evidenziano la successiva evoluzione nella traiettoria di Salas BarbadilloParole chiave: Salas Barbadillo, Struttura, Corte, Interpolazioni
Ana Ozores y santa Teresa de Jesús: «el coloquio de dos almas a través de tres siglos». Consideraciones acerca de la recepción de la autobiografía teresiana en La Regenta
Authors: García Sánchez Laura
Published: April 2023

El presente estudio trata de establecer, a partir de los paralelismos biográficos y de las referencias intertextuales, la influencia de Teresa de Cepeda y Ahumada en la construcción psicológica de Ana Ozores. Dicha influencia, patente textualmente a raíz de la asimilación del Libro de la Vida en la segunda parte de la obra, parte de la existencia de unos antecedentes familiares semejantes, de las lecturas de infancia y adolescencia, de la reivindicación de la creación literaria femenina o de una concepción religiosa cercana al misticismo. Estas circunstancias vitales y culturales se erigen como los puntos de intersección entre ambas mujeres.Palabras clave: Ana Ozores, santa Teresa, infancia, lecturas, misticismo.Ana Ozores and santa Teresa de Jesús: «el coloquio de dos almas a través de tres siglos». Considerations about the teresian autobiography’s reception in La RegentaAbstract:This study aims to demonstrate the influence of Teresa de Cepeda y Ahumada in the development of the psicological profile of Ana Ozores, using the similarities in their biographies and several intertextual references. Such influence, evident in the text since the reading of Libro de la Vida by Ana in the second part of the book, starts from the existence of a similar family history, the childhood and adolescence readings, the claim of literary female creation or a religious conception close to mysticism. These vital and cultural circumstances stand as the points of intersection between the two women.Key words: Ana Ozores, santa Teresa, chilhood, readings, mysticism.
El pacto epistolar en relación a la auto-ficción en Correspondencia privada, de Esther Tusquets
Authors: Toribio Álvarez Andrea
Published: April 2023

En este trabajo, analizaremos el vínculo entre el artificio epistolar, bajo la óptica del cuento, y la ficción autobiográfica en Correspondencia privada (2001), de la editora y escritora catalana Esther Tusquets. Así mismo, estudiaremos la construcción de los distintos destinatarios o interlocutores a los que se dirige en dicha obra y los múltiples procesos de reescritura de su proyecto literario que afectan a la misma. Abordaremos, de forma paralela, la conquista del espacio de lo privado por parte de la escritora desde su condición femenina y desde las categorías «experiencia» y «memoria».Palabras clave: Modelo epistolar, Ficción autobiográfica, Cuento, Esther Tusquets.The epistolary pact in relation to self-fiction in Correspondencia Privada, by Esther TusquetsAbstract: This research will analyse the relation between the epistolary art, throghout the tale genre, and the autobiographical fiction in Correspondencia privada (2001), of the catalan editor and writer Esther Tusquets. Furthermore, it will study the setting of the different addressees or speakers to whom she is writting for and the numerous procedures of rewriting from her literary project that affect this book. It will consider thus the re-appropiation of the private space by the author from the female condition and the spheres of «experience» and «memory».Key words: Epistolary art, Autobiographical fiction, Tale genre, Esther Tusquets.
Classic antique polis: forms of appropriation and social clasters
Authors:   Ukrainian State University of Science and Technology (Dnipro), Tarasevych Viktor
Published: April 2023

This article continues the series of publications on the universal evolution of the ancient civilization and its sub-civilizations and deals with the characteristics of socio-economic and social structures in a classical ancient polis, and their interrelationships and contradictions on the example of Athens. The author considers various changes in power-property relations and the role of traditional social clusters in the governing groups under the expansion of democratic institutional order and with the growing stratum of non-citizens. The defeat of dynastic proto-institutions, the competition between clanism and corporatism, the development of private property of citizens and democratic procedures promoted to the strengthening of personal and collective sub-actors in the ruling group, as well as to their consolidation in the context of strengthening of the economic positions of non-citizens. At the same time, the collision between the ruling group as a representative of the civil community in the polis and an organization relatively separated from it acquires new qualitative features, including the struggle for redistribution of the centralized surplus and necessary product between the sub-actors of the ruling group and the conversion of its parts from personal-private and corporate-clan-collective power-proprietary appropriation into various forms of private appropriation by the members of the power group. The main social clusters of the classical polis (peasants, artisans and merchants, aristocrats, non-tribal rich, hired workers, slaves, civil community) and their appropriate forms of appropriation (personal-clan, clan-private, clan- and corporate-private, private and collective-individual). Attention is focused on inter- and intra-cluster contradictions regarding the appropriation of surplus and necessary product. The author concludes about the network nature of the classic policy appropriation system and about the expediency of its further study.
Economic aspects of strengthening the protection of intellectual property rights
Authors:   State Institution “Institute for Economics and Forecasting, NAS of Ukraine”, Khaustov Volodymyr
Published: April 2023

The present stage of development of the world economy is characterized by a spread of innovation, a rapid development of global and national protection systems and, especially, the protection of intellectual property. The dynamism of interstate relations is accompanied by an increase of various violations of intellectual property rights, including counterfeiting, falsification, piracy, and plagiarism. The purpose of the study is to generalize the global trends in the violation of intellectual property rights, identify the main problems in the protection of intellectual property rights in Ukraine within the context of strengthening the fight against violation of copyright and industrial property rights by the world's leading countries. Violations of intellectual property rights, including patent theft, trademark counterfeiting, copyright piracy, and trade secret theft, cause considerable material and financial damage to the rights holders. The problem of counterfeiting is currently spreading on a global scale and occurs in the production, transshipment and in the sale of large quantities of counterfeit goods. Counterfeit goods, especially foodstuffs and pharmaceuticals, bear risks to the health and safety of consumers. Online sales have become the newest channel for trading fraudulent and counterfeited goods. The bulk of counterfeited produce originate from a small group of economies, among which China, Hong Kong (province of China), Turkey, Singapore and the United Arab Emirates are in the lead. Escalated violations of intellectual property rights lead to a stronger protection of intellectual property rights in the USA and EU countries, and the appearance of special reports based on the results of monitoring and supervision of violations in trading partner countries. In recent years, Ukraine has been included in the US Priority Watch List of countries that do not ensure a proper protection of intellectual property rights and are monitored by the Office of the US Trade Representative. Besides, this country is in the second category of the European Commission’s Counterfeit and Piracy Watch List, which includes countries with the most serious problems in intellectual property protection. The status of a candidate country for EU membership requires Ukraine to harmonize its national legislation with the EU legislation in the field of intellectual property protection.
Preselection of the reference orbit for an Earth remote sensing satellite
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Alpatov A.P. , Maslova A.I. ,   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Pirozhenko A.V. ,   Earth Observing System Data Analytics
Published: April 2023

Low near-circular orbits of Earth remote sensing (ERS) satellites are considered. The objective is to select the orbits most suitable for a particular satellite mission. In particular, the problem of an approximate determination of the orbit parameters that allow a satisfactory satellite survey of the target surface of the Earth is considered. The main desires of observation system developers regarding the conditions of the Earth's surface survey are considered. To reconcile these desires with the regularities of satellite motion in low Earth orbits, use may be made of simple models that describe these regularities. In doing so, it is desirable to visualize viewing swaths on the Earth's surface. A compromise between the desires of observation system developers and the satellite motion regularities is the selection of orbits that best meet the characteristics of a particular satellite and its observation system. This article presents a simple model and algorithm that make it possible to preselect ERS satellite orbits. The proposed model is based on familiar relationships, and the novelty of the article lies in a compact and generalized presentation of the model for ERS satellite orbit preselection. The article presents models that make it possible to estimate the satellite swath width and choose the orbit inclination angle, a stable orbit shape, the orbit altitude, and the orbital period. The advantages and disadvantages of solar synchronous orbits are considered. Analytical expressions are constructed to fairly simply estimate the excursion of a satellite from its operational orbit under the action of the aerodynamic drag, estimate the rate of recovery of the orbit parameters under the action of a constant transversal control acceleration, and determine allowable time intervals between engine starts and engine operation intervals. The advantages of repeat ground track orbits are shown. The simplest model for calculating and visualizing satellite viewing swathes of the Earth's surface is constructed. Thus, the article proposes a simple algorithm for the preselection of low Earth orbits for ERS satellites with a satisfactory observation of the target surface of the Earth.
Features of the development of space-based shading and lighting systems for the Earth’s surface
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Alpatov A.P. , Lapkhanov E.O. ,   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Published: April 2023

The problem of ensuring favorable climatic conditions in a particular territory is global for mankind. In the context of the global climate change, its resolution may be crucial for national economy management in many countries. By now, a number of engineering solutions have been proposed to develop means that may allow one to achieve the goal of global climate control. These solutions include an Earth orbit change concept, aerosol marine and stratospheric technologies, and a “sunshade” concept. One of the promising conceptual developments is a space-based “sunshade” technology. Taking into account the significant scientific background and a similar principle of operation of lighting (illuminative) systems, they were suggested to be used simultaneously with “sunshade” systems. The goal of this work is the development of a structure for a mathematical model of the ballistics and navigation of a space-based shading and lighting system (SBSLS). To do this, SBSLS structural modules were identified: a space-based industrial platform for SBSLS module production, passive and active shading and lighting modules, and service spacecraft. Generalized construction arrangements of the shading and lighting module were decided on. Based on the features of the SBSLS structural modules, a structure for a mathematical model of SBSLS ballistic and navigational support was developed. The structure comprises five components: an orbit estimator, an attitude motion estimator, an attitude and orbit control system, an optical estimator, and a geodetic estimator. A number of specific problems involving the choice of SBSLS design parameters at the conceptual design stage were identified and justified for further investigation. The combined use of the above modules may allow one to solve them.
Thrust vector control by detonation product injection into the supersonic nozzle area
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Vasyliv S.S. , Ternova K.V. ,   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Published: April 2023

To solve the problem of satellite control and stabilization in emergencies, it is proposed to use a detonation rocket engine, which enables active maneuvering to avoid a collision with space debris. The goal of this work is to study a new way of rocket engine thrust vector control by acting with a detonation shock wave on the gas flow in the nozzle. A detonation wave in a supersonic flow in a nozzle was numerically simulated. The simulation was conducted in a non-stationary plane formulation at different angles of inclination of the detonation gas generator that initiates a detonation shock wave to the combustion chamber axis with the use of SolidWorks application software for the 11D25 engine of the Cyclone-3 third stage. The simulation results were used to pre-optimize the location of the detonation gas generator on the nozzle wall. It was found that the effect of the detonation wave on the main gas flow in the nozzle is caused by two force factors: the first is due to the reactive force produced by the detonation product injection into the nozzle and a high-pressure zone on the wall where the detonation gas generator is mounted, and the second is due to a change in pressure distribution over the nozzle surface. In order to increase the effect of the shock wave, the detonation products must be injected parallel to the main gas flow in the nozzle or at some angle. The simulation showed the drawbacks and advantages of detonation product injection at different angles. The detonation wave effect on a supersonic nozzle flow was studied experimentally. A system was developed to record the shock detonation wave propagation using a heat meter. A special nozzle model and a gas generator were developed to initiate a detonation wave interacting with a supersonic air flow. It was found out how the detonation wave separates the main flow from the nozzle walls in the overexpanded mode. The results may be used in the space-rocket industry to provide upper stage maneuvering to avoid a collision with space debris.
Impact of the Cell Wall on Cyanide Biodegradation in the Model of the Respiratory Mechanism
Authors: Yakovliev V.S. , Ermakov V.N. , Lev B.I.
Published: April 2023

Based on the general model of the respiratory mechanism of cyanide degradation by microorganisms, we introduce the impact of the cell wall on the degradation process under the conditions with and without the initial short-term pulsed electric field treatment. The research is conducted using non-linear phenomenological equations, and the solution approximation is obtained. Theoretical and experimental data are compared, and they are in good agreement. We demonstrate that the initial short-term pulsed electric field treatment increases the permeability of cyanide through the cell wall, as well as the rate of activation of the respiratory chains. The steady-state solutions and the maximum rate of cyanide addition are derived under the conditions that cyanide is continuously added to the solution with bacteria, and there is no initial pulsed electric field treatment.
Synthesis of Surface Structures during Laser-Stimulated Evaporation of a Copper Sulfate Solution in Distilled Water
Authors: Bondar I.I. , Suran V.V. , Minya O.Y. , Shuaibov O.K. , Bilak Yu.Yu. , Shevera I.V. , Malinina A.O. , Krasilinets V.N.
Published: April 2023

The methodology, technique, and results of studies of the formation of films on the glass surface during the irradiation of water solutions of copper sulfate with the laser radiation are presented. We used the nanosecond radiation of an yttrium-aluminum garnet laser with the generation wavelength λ = 1 .06 μm. The studies used solutions with different concentrations of copper sulfate. The structure of the films obtained in this case is compared with the structure of the films obtained as a result of drying the solutions without exposure to a laser radiation. The resulting films have both ordered and disordered structures. The characteristic dimensions of the structural elements of the films are 0.5–2 μm. The transmission of films in the 300–1200 nm spectral region is studied. In general, the resulting films are transparent in this area. Their transmission practically does not depend on the wavelength, but is different for different concentrations of the solution of copper sulfate.
Розповсюдження акустичних хвиль у кристалах вольфрамату кальцію
Authors: Buryi O.A. , Vynnyk D.M. , Voroniak T.I. , Stasyshyn I.V. , Ratych A.T. , Andrushchak A.S.
Published: April 2023

На основi розв’язку рiвняння Кристоффеля побудовано поверхнi фазових швидкостей для квазипоздовжньої, квази-поперечної швидкої та квазипоперечної повiльної акустичних хвиль (АХ) у кристалi CaWO4, визначено екстремальнi значення швидкостi для кожного типу АХ та напрямки, в яких вони реалiзуються. Показано, що максимальне знесення АХ вiдбувається пiд час її розповсюдження в площинi (001), при цьому для квазипоперечних АХ значення кута знесення може досягати величини близько 45∘, а для квази-поздовжньої – близько 18∘. Визначено квадратичнi коефiцiєнти анiзотропiї W1 та W2 для рiзних напрямкiв розповсюдження АХ. Показано, що в кристалi iснують такi напрямки поширення квазипоперечних АХ, для яких розбiжнiсть (квадратичний коефiцiєнт анiзотропiї |W2|) значно перевищує ту, яка мала б мiсце у випадку iзотропного середовища. Визначено напрям, в якому пiд час поширення квазипоперечної повiльної АХ анiзотропiя спричиняє додаткове фокусування акустичного пучка, тодi як для квазипоперечної швидкої АХ, навпаки, – додаткову розбiжнiсть. Наведено результати експериментальних значень швидкостей та кутiв знесення АХ, якi пiдтверджують достовiрнiсть отриманих розрахункових даних.
Improving the Quality of Written Discharge Instructions: A Multisite Collaborative Project
Authors: Desai Arti D. , Tolpadi Anagha , Parast Layla , Esporas Megan , Britto Maria T. , Gidengil Courtney , Wilson Karen , Bardach Naomi S. , Basco William T. , Brittan Mark S. , Johnson David P. , Wood Kelly E. , Yung Steven , Dawley Erin , Fiore Darren , Gregoire LiseAnne , Hodo Laura N. , Leggett Brett , Piazza Kirstin , Sartori Laura F. , Weber Danielle E. , Mangione-Smith Rita
Published: April 2023

BACKGROUND AND OBJECTIVES

Written discharge instructions help to bridge hospital-to-home transitions for patients and families, though substantial variation in discharge instruction quality exists. We aimed to assess the association between participation in an Institute for Healthcare Improvement Virtual Breakthrough Series collaborative and the quality of pediatric written discharge instructions across 8 US hospitals.

METHODS

We conducted a multicenter, interrupted time-series analysis of a medical records-based quality measure focused on written discharge instruction content (0–100 scale, higher scores reflect better quality). Data were from random samples of pediatric patients (N = 5739) discharged from participating hospitals between September 2015 and August 2016, and between December 2017 and January 2020. These periods consisted of 3 phases: 1. a 14-month precollaborative phase; 2. a 12-month quality improvement collaborative phase when hospitals implemented multiple rapid cycle tests of change and shared improvement strategies; and 3. a 12-month postcollaborative phase. Interrupted time-series models assessed the association between study phase and measure performance over time, stratified by baseline hospital performance, adjusting for seasonality and hospital fixed effects.

RESULTS

Among hospitals with high baseline performance, measure scores increased during the quality improvement collaborative phase beyond the expected precollaborative trend (+0.7 points/month; 95% confidence interval, 0.4–1.0; P < .001). Among hospitals with low baseline performance, measure scores increased but at a lower rate than the expected precollaborative trend (−0.5 points/month; 95% confidence interval, −0.8 to −0.2; P < .01).

CONCLUSIONS

Participation in this 8-hospital Institute for Healthcare Improvement Virtual Breakthrough Series collaborative was associated with improvement in the quality of written discharge instructions beyond precollaborative trends only for hospitals with high baseline performance.
Las fronteras en Colombia: su origen, evolución, pérdida e importancia en las Relaciones Internacionales
Authors: Cano Blandon Rodolfo
Published: April 2023

La política exterior colombiana es reciente. La configuración territorial del país en 1819, su unión a Venezuela y Ecuador en la Gran Colombia y su posterior disolución en 1831 obligaron a la naciente república a constituir relaciones con los demás Estados. A partir de las primeras constituciones promulgadas desde 1810 las relaciones internacionales quedaron plasmadas en las consecutivas cartas políticas. No obstante, a pesar de haberse escrito dieciséis constituciones políticas durante cerca de doscientos años de vida republicana y de haber considerado la política exterior como un elemento fundamental dentro de la evolución y maduración del Estado colombiano, las fronteras territoriales y marítimas de Colombia estuvieron sumidas en el atraso y en el olvido estatal, y las políticas e inversiones en dichos territorios fueron deficientes.
          Se estima que Colombia ha cedido gran parte de su territorio continental y marítimo a países como Venezuela, Brasil, Perú, Ecuador, Panamá y en el mar Caribe con Venezuela y Nicaragua. La cesión del territorio confirma la falta de visión política, marítima y prospectiva del Estado colombiano, respecto a territorios de suma importancia para la configuración del país. Por esta y otras razones el presente artículo desarrolla el tema de los territorios fronterizos colombianos, su nacimiento con el uti possidetis iuris de 1810, su sufrida y malograda negociación con los países vecinos, su evolución y las cesiones territoriales y marítimas durante los últimos dos siglos de vida republicana[1].
 
[1] El presente artículo sintetiza la tesis doctoral Reconfiguración territorial en Colombia: el papel del Estado y la diplomacia en las fronteras (1830-2012), realizada en el Doctorado en Estudios Políticos de la Universidad Externado de Colom­bia. La investigación fue elaborada entre 2014 y 2020.
The Relationship of BsmI Vitamin D Receptor Gene Polymorphism with Clinicopathological Picture of Breast Cancer Patients at Sanglah Hospital Denpasar Bali
Authors: Wijayanti Stephanie , Wihandani Desak Made , Darwinata Agus Eka , I Gede Putu Supadmanaba
Published: April 2023

Introduction: Breast cancer is the most common cancer found in women and is one of the diseases associated with aging. Previos studies have found a significant association between the BsmI vitamin D receptor and breast cancer. This study aims to prove the relationship between BsmI vitamin D receptor polymorphisms with clinicopathological features of breast cancer at Sanglah Hospital, Denpasar Bali.
Methods: This research is an analytic study with cross sectional method. The samples used in this study were 50 stored biological materials in the form of DNA from breast cancer patients in 2016- 2018 which is in the Biochemistry Laboratory of the Udayana Faculty of Medicine. To determine the polymorphism of the BsmI vitamin D receptor gene, DNA samples from breast cancer patients were amplified by polymerase chain reaction (PCR) method, then identified by sequencing method. The results obtained were then analyzed statistically using bivariate and multivariate analysis by using spss 25.sav.
Results: 45 people (90.0%) were found with heterozygous polymorphism G/A and 5 people (10.0%) with homozygous wildtype GG. There was a statistically significant relationship between BsmI vitamin D receptor polymorphism and breast cancer stage at Sanglah Hospital Denpasar Bali (p=0.048). There was no significant relationship between age and history of contraceptive use and clinicopathology of breast cancer, but menstrual status was significant with the stage of breast cancer patients (p=0.037).
Conclusion: There is a significant relationship between BsmI vitamin D receptor polymorphism and breast cancer stage at Sanglah Hospital Denpasar Bali.
Relationship Between Vitamin D Receptor TaqI Polymorphism and the Clinicopathological Features of Breast Cancer Patients at Sanglah Hospital, Denpasar, Bali
Authors: Lawrence Cynthia , Darwinata Agus Eka , Wihandani Desak Made , I Gede Putu Supadmanaba
Published: April 2023

Introduction: Breast cancer is a malignant tumor of the mammary gland. Breast cancer is associated with vitamin D receptor (VDR) TaqI polymorphism. This study aims to prove the relationship between TaqI polymorphism and the clinicopathology of breast cancer in Bali.
Methods: This study is an observational analytic study with a cross-sectional design conducted from February to August 2021. A total of 39 sample DNA isolates from breast cancer patients at Sanglah Hospital were enrolled in the study. The independent variable was the VDR TaqI gene polymorphism, while the dependent variable was the clinicopathological breast cancer (clinical stage and histological grading). The examination was carried out by PCR and sequencing. Clinical staging and histological grading of breast cancer were taken from the patient's medical record. The results were analyzed using descriptive and bivariate analysis.
Results: TaqI polymorphism of breast cancer at Sanglah Hospital Denpasar was dominated by the wild type TT genotype as much as 59%. This study did not find the CC genotype. The results of the statistical analysis did not find a significant relationship (p>0.05) between TaqI polymorphisms with TT and TC genotypes and clinicopathology of breast cancer but found a significant relationship (p=0.047) with histological grading. The TT and TC genotypes were found to increase the risk of breast cancer severity by 3,810 compared to individuals without the TT and TC genotypes. Analysis of confounding variables with clinicopathological breast cancer found no significant relationship (p>0.05) between the age of diagnosis, menstrual status, and hormonal contraceptive use with the characteristics of the sample.
Conclusion: It was concluded that breast cancer patients at Sanglah Hospital Bali had TaqI polymorphisms with TT and TC genotypes. TT and TC genotypes are associated with histological grading and can increase the severity of histological grading in breast cancer patients at Sanglah Hospital Denpasar Bali.
What are the common uropathogens susceptible antimicrobials for nephrostomy patients?
Authors: Iwan Indra Putra  , Tanaya Ghinorawa
Published: April 2023

Introduction: Surgical procedures, such as nephrostomy, prone the patient to postoperative infection. Moreover, multidrug-resistant uropathogens emerge due to the inappropriate use of antibiotics and are now a progressive problem worldwide. Distribution mapping of uropathogens and antimicrobial susceptibility patterns in nephrostomy patients gives urologists a clearer picture to aid in better management of their patients.
Objectives: To identify the distribution of uropathogens and antimicrobial susceptibility patterns in nephrostomy patients.
Materials & methods: We conducted a retrospective observational review of the medical records, including all adult patients undergoing nephrostomy from 1st January 2020 until 31st December 2021 in a tertiary hospital in Yogyakarta, Indonesia. In each patient with a positive urine culture result, uropathogens and antimicrobial susceptibility test reports were recorded and evaluated separately.
Results: Of 100 patients, 76 demonstrated positive urine culture (76%), with 78 isolates from 23 strains. Almost all strains were bacterial (22/23; 95.65%), but one was fungi (1/23; 4.35%). Escherichia coli was the most common uropathogens from the isolates (31/78; 39.74%), followed by Pseudomonas aeruginosa (10/78; 12.82%) and Klebsiella pneumoniae (6/78; 7.69%). Antimicrobial susceptibility tests of 33 antibiotics and 2 antifungals were carried out. Most reports showed susceptibility to Meropenem (11.78%), followed by Gentamicin (10.21%), amikacin (8.12%), and Nitrofurantoin (7.07%).
Conclusion: The common uropathogens in nephrostomy patients were Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae. The common susceptible antimicrobials included Meropenem, Gentamicin, amikacin, and Nitrofurantoin.
Physiotherapy Rehabilitation Management on Phase I of Post Operative Anterior Cruciate Ligament Reconstruction: A Case Report
Authors: Adhitya I Putu Gde Surya , Ari Wibawa  , Abdurrasyid  , I Gusti Ngurah Wien Aryana  , Muhammad Adrian Putra Rachman  , Ni Luh Veni Rahayu  , Ni Komang Mega Junianti  , Emily Devina Kartawijaya  , Tabita Febyola Wijaya
Published: April 2023

Background: An anterior cruciate ligament reconstruction (ACLR) phase I is critical for the patient to improve knee pain and range of motion (ROM), knee functions, and prevent excessive inflammation and muscle atrophy. This study aims to evaluate the physiotherapy interventions to improve the pain, ROM, muscle atrophy, and knee function following ACLR phase I.
Case Description: In July 2022, a 22-year-old female basketball athlete injured her right knee while running-pivoting movement during practice. The patient received ACLR on September 22, 2022, following an MRI and physiotherapy examinations. On October 14, 2022, the patient began receiving three times physiotherapy programs weekly. Until November 11, 2022, she complained of having trouble bending and straightening her knee. Although there was no increment in leg muscle circumference of 20 cm above the right patella (RP), there were increments in muscle circumferences of 1.3 cm at 10 cm above the RP, 1.1 cm at 5 cm above the RP, 1.2 cm at 10 cm below the RP, and 1.5 cm at 20 cm below the RP. After three times interventions, we found changes 5o of knee flexion, 2 points of tenderness VAS, 5-28 points of KOOS score, and 10 points of Lysholm’s score.
Conclusion: The physiotherapy interventions improved the pain, ROM, leg muscle circumference, and knee function in the ACLR phase I patient. This case report study could be a reference for further experimental study.
Nano extract of Coriandrum sativum l (ketumbar seed) decrease malondialdehyde (MDA) and blood glucose, and increase superoxide dismutase (SOD) in hyperglycaemic wistar rats
Authors: Sri Wahjuni  , Ida Ayu Raka Astitiasih  , Ni Made Puspawati  , Mustika Lahaya  , A.A. Bawa Putra  , Ida Bagus Putra Manuaba  , Ahmad Fudholi
Published: April 2023

Introduction: Coriandrum sativum L (ketumbar seeds) nano extract was prepared using chitosan as a nano extract framework and tripolyphosphate as a stabilizer by ionic gelatin method. This study aimed to reduce free radicals in streptozotocin-induced hyperglycaemic rats by administering Coriandrum sativum L nano extract as nano herbal.
Methods: Characterization of the resulting nano extract was performed using Fourier Transformation Infra-Red (FTIR). The ability of nano extract as antihyperglycemic on streptozotocin-induced rats was tested using the randomized post-test only control group design research by observing the levels of blood glucose, MDA, and SOD as markers of oxidative stress.
Results: The phytochemical test showed that Coriandrum sativum L extracts contained polyphenols, flavonoids, alkaloids, and terpenoids. Characterization with PSA strongly supports nano extract as a delivery system for bioactive substances with a zeta potential of -25.80 mV and a particle size of 455.20 nm. The result of the antihyperglycemic test showed that oral administration at a dose of 50 mg/Kg BW/day gave the best result for decreasing glucose blood and MDA, and increasing SOD level in hyperglycaemic rats. LCMS/MS analysis showed that in ethanol extract of Coriandrum sativum L are suspected to contain the 7 compounds: DL-Valine, indoline, 2-quinolinol, trans-tnrthole, luteolin, apigenin, linoliamide, and luteolinin are compounds known in to be able to lower blood glucose and malondialdehyde.
Conclusion: Coriandrum sativum L (ketumbar seeds) nano extract was prepared using chitosan had potential to decrease MDA and blood glucose, and increase SOD level in hyperglycaemic rats.