bluuebunny/crossref_metadata_2025 huggingface dataset:
Theoretical Analysis of Butane Isomers Separation using Various Membrane Process Configurations
Authors: Aghaeinejad-Meybodi Abbas , Ghasemzadeh Kamran , Babaluo A.A. , Basile Angelo
Published: November 2023

Polymer is among the favorite materials used for membrane separation as they are cheap, easily cast, low maintenance cost and commercially easy to get eventhough the material needs to be altered to meet the separation industry specific needs. There are two common issues in membrane preparation which are the produced sheet are too brittle and has no strength to withstand pressure during separation process and the porosity of the sheet sometimes not suitable with the gas kinetic diameter for the separation to occur. PEBAX or Poly ether block amide is the answer for the issues as this elastomer provides good mechanical strength from the hard segment of the crystalline poly amide block while the soft polyether will drive the separation process. This unique material can be casted either by phase inversion of the PEBAX itself with other polymer or by coating them on the other polymer substrate.
Preparation of Polymer Inclusion Membranes (PIMs) with Ionic Liquid and its Application in Dye Adsorption Process Supported by Statistical Analysis
Authors: Lakshmi D. Shanthana , Santoro Sergio , Avruscio Elisa , Tagarelli Antonio , Figoli Alberto
Published: November 2023

Polymer inclusion membranes (PIMs) were prepared via Non-Solvent Induced Phase Separation (NIPS) using polyethersulfone (PES) loaded with a liquid ionic, 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]). Hydrophilic porous PIMs with a controlled morphology were obtained and tested for the removal of reactive blue 19 (RB19) as a model anionic dye. The dye adsorption efficiency depends on several variables i.e. pH, contact time, initial dye concentration, amount and weight of adsorbent (PIMs). The optimal values of these parameters were calculated by the multivariate approach of â€œExperimental designâ€ and, in particular, a central composite design (CCD). The optimal conditions obtained from the response surface data are: [BMIM][PF6] concentration 10.7wt%, pH 3.0, RB19 dye concentration 10.0 ppm and PIMs of weight 0.055 mg. The experimental adsorption percentage of RB19value (69.2%) was in agreement to those predicted by the CCD model (71.7%).
Theoretical Considerations of Pressure Drop and Mass Transfer of Gas Flow in Spiral Wound Membrane Modules
Authors: Metaiche M. , Sanchez-Marcano J.
Published: November 2023

In this work we give the preliminary results of the development of two reliable correlations for the calculation of the friction and mass transfer coefficients for the gas transfer through spiral wound membrane modules. The mass transfer coefficient which allows determining the polarization phenomenon was taken in consideration through the calculation of the Sherwood number near the surface of the membranes. Both correlations take in consideration the inclination angle of transversal and longitudinal filaments of grids in spacers. They allow a good prediction of the pressure drop, friction coefficient and the mass transfer in spiral modules for gas flow when compared with experimental results obtained in a previous work reported in the literature.
Assessment of the SEDE Model: Determination of Membrane Potential and Salt Rejection of a Nanofiltration Membrane
Authors: Lanteri Yannick , Szymczyk Anthony , DÃ©on SÃ©bastien , Fievet Patrick
Published: November 2023

Up to now, the SEDE (Steric Electric and Dielectric Exclusion) model was used to describe solute rejection in nanofiltration or membrane potential measurements. This model uses four fitting parameters: pore size, thickness to membrane porosity ratio, volume charge density (X) and dielectric constant of the solution inside pores (ep). Because these two latter parameters are extremely difficult to measure, an alternative method for assessing the SEDE model was to study both salt rejections and membrane potentials for a same salt. Experiments were conducted with a NF polyamide membrane in CaCl2 solutions. In the case of single salt solutions, experimental rejections and membrane potentials can be described by a number of couples (X, ep) because both electric and dielectric exclusion contribute to reject ions. Only, one of the couples was found to provide a good description of both experimental rejections and membrane potentials. The fact that a unique choice for X and ep allows accounting simultaneously for both the salt rejection and the membrane potential data is an indicator of the global coherence of the SEDE model.
Effect of Mass Transfer Resistance of Polymeric Surfactant on Transport of Metal through Bulk Liquid Membrane Interface
Authors: Das Diptendu
Published: November 2023

This research work deals with an investigation on the reduction of mass transfer coefficient due to the presence of polymeric surfactant/ polycondensate layer in the liquid membrane. Mo(VI) is chosen as target species which are to be removed from feed solution using Bulk Liquid membrane (BLM) in presence of polymeric surfactant and extractant. Mathematical model is developed for simulation of kinetics of Mo(VI) extraction using BLM. Study reveals that for efficient Mo(VI) extraction, reduction of stripping rate is not at all desirable. Abil EM 90 is found best suitable polymeric surfactant as it has least mass transfer resistance of Mo(VI) transport in strip phase. This study is very useful for selecting suitable polymeric surfactant/ polycondensate layer for stabilising liquid emulsion membrane for metal extraction/recovery purpose.
Cognitive-behavioral therapy and acceptance and commitment therapy for anxiety and depression in patients with fibromyalgia: a systematic review and meta-analysis
Authors: Cojocaru Cristiana Manuela , Popa Cosmin Octavian , Schenk Alina , Suciu Bogdan Andrei , Szasz Simona
Published: November 2023

Introduction. Defined by chronic, musculoskeletal pain, fibromyalgia is often comorbid with depression and anxiety. In these cases, the first line medical treatment can be successfully combined with psychological interventions. Cognitive-behavioral therapy and acceptance and commitment therapy are among the most widely studied approaches in relation to chronic pain, including fibromyalgia. The objective of this review is to analyze the efficiency of these psychological treatments for alleviating emotional distress in fibromyalgia.

Method. The search was conducted on the PubMed, Scopus and Web of Science online databases. Clinical trials that fulfilled eligibility criteria were included in this review. A meta-analysis was performed on depression and anxiety scores at post-test. Heterogeneity was assessed using the Chi2 and I2 indicators. For evaluating publication bias, we resorted to a funnel plot graph.

Results. A total of 17 reports were selected, among which 4 articles studied the efficiency of acceptance and commitment therapy. Main demographic characteristics were homogenous throughout the included samples. The overall effect was -0.31 (95% CI: -0.47 to -0.15) for depression, and -0.15 (95%: -0.29 to -0.02), reaching statistical significance.

Conclusions. Both psychological interventions proved to be efficient for decreasing depression and anxiety in fibromyalgia. For this reason, we believe psychotherapeutic protocols can be reliably implemented within multicomponent treatments, facilitating emotional adjustment in the context of physical disability and pain. Future research directions include the exploration of change processes and multiple moderators, enabling the development of tailored psychological treatments in fibromyalgia.
The comparative analysis of the effectiveness of attacking actions of teams of the major league female volleyball players in the games of 1-and 2-rounds of the XXVIII Championship of the Republic of Uzbekistan
Authors:   Uzbek State University of Physical Culture and Sports, Akbarov Akhmatjon , Ummatov Akram ,   Uzbek State University of Physical Culture and Sports, Yokubova Oyatkhon ,   Uzbek State University of Physical Culture and Sports
Published: November 2023

The presence of a problematic situation of competitive activity in modern volleyball shows the need for knowledge about the degree of development of objective assessment and subjective judgment, as well as the definition of purposes and tasks of preparing sportsmen for competitive activity. The purpose of the researchis to present the results of the research regarding the effectiveness of attacking actionsof teams of the major league female volleyball players in games of the 1-and 2-rounds of the XXVIII Championship of the Republic of Uzbekistan. Results.In the course of the research, higher performance indicators were determined for female volleyball players of the winning team -the sports club of Uzbek University of Physical Culture and Sports of the Republic (SCUPh) than for teams that took the 3rdand last 5thplaces in these tours. Female volleyball players of the team SCUPh during five matches of the first round performed 573 attacking actions, of which in 309 cases (in 53,93% of all attempts by team players) the ball remained in the game. In 207 attempts (36,13%; efficiency factor 0,36) turned out to be positive, in 57 attempts (9,95%) the attackers were negative. The analysis of the results of attacking actions showed that in the second round the indicator of the effectiveness of attacking actions of volleyball players of the team SCUPh who took first place is better than the corresponding indicators of other teams. At the same time, СПОРТИВНІ ІГРИSPORTYVNI IHRYСПОРТИВНЫЕ ИГРЫ 2022No2(24)10there is a slight decline in the effectiveness of attacking actions of female volleyball players of the team SCUPh in the second round of the championship compared to the results of the first round. During the five fights of the first round, female volleyball players of the team ANDIZHAN had 397 attacking actions, of which in 201 cases (50,63% of all attempts by team players) the ball remained in the game, in 104 attempts (26,20%; efficiency factor 0,26) was positive andin 92 attempts (23,17%) the actions were negative. In the second round, ANDIZHAN team volleyball players showed a slight increase in the number of points accumulated and a decrease in the number of ball losses in the game.
Individualization before game warm-up of skilled handball players taking into account their pre-start states
Authors:   H. S. SkovorodaKharkivNationalPedagogicalUniversity, Nesen Olena , Kononenko Nelli ,   National  aerospace  university –Kharkov  aviation  institute  (KhAI), Bilous Natalia ,   National  aerospace  university –Kharkov  aviation  institute  (KhAI)
Published: November 2023

he aim is to increase the effectiveness of the skilled handball players during a competitive match through individualization before the game warm-up.Materials and research methods: The study was conducted in twostages. On the first stage it was conducted ascertaining investigation todefine individualized limit of "norm of states" for each sportsmen.Ahead of each competitive game was defined functional state of handball players, after that was conducted pedagogical surveillance for effective of game.On the second stage it was conducted the formative pedagogical probation within which was correction pre-game warm up. It was based on the pre-start states of handball players. The definitionindividualized limit of"norm of states" and pre-starters states of handball players was conducted according to the method of serial dynamometry. It was defined effective of games and active/passive part of games for each player by means of pedagogical surveillance.The СПОРТИВНІ ІГРИSPORTYVNI IHRYСПОРТИВНЫЕ ИГРЫ 2022No2(24)18effectively of game was defined by the method of comprehensive assessment of play activity.It was taken into consideration number of positive and negative play activity for each players and his time of involved in game.The each playing activity had its own significance coefficient.The obtained data were processed using Statisticasoftware.The relationship between effective of gamy and pre-start states handball players was assessed by Pearson correlation analysis.The Wilcoxon test was used to compare the indicators of effective of game on the different stages of our investigation.The assessment of statistical hypotheses proceeded from the 5% level of significance, which provides the necessary accuracy in pedagogical research.Results: It was defined the influence of pre-start state of handball players and their effective of game (r = 0,71.It was defined in the first third of game especially.Was formed the recommendations about consist of and intensity pre-game warm-up for players, who exist of different pre-starts states.Conclusion:It was established the increase of effective of game of handball players to compare of beginning of our investigation under the influence of corrections of pre-game warm-up.
ssessment of the parameters of physical development of young football players aged 14-15 years.
Authors:   Kharkiv State Academy of Physical Culture, Perevoznyk Volodymyr , Pertsukhov Andrii ,   Kharkiv State Academy of Physical Culture
Published: November 2023

Purpose —to establish indicators of the physical development of young football players aged 14-15. Material and methods:according to the goal and tasks set, the research program included methods of theoretical analysis and generalization of scientific and methodological literature, methods of studying anthropometric characteristics, methods of mathematical processing of results. The study was carried out with the football players of the team of FC «Arena»Kharkiv –participants in the championship of the CYFLof Ukraine. The study involved 24 football players aged 14-15. The study was conducted in the Kharkiv regional medical and sports dispensary. The work was carried out in three stages. At the first stage, the analysis, study and generalization ofscientific and methodological literature were carried out. At the second stage, a survey of 14-15-year-old football players was carried out. At the third stage of this study, weight-height indices and proportionality indices were calculated. Results:the article presents the anthropometric indicators of young football players aged 14-15. It has been established that 14-15-year-old football players have characteristic overall body dimensions (body length and weight, chest circumference at rest, on inhalation and exhalation), weight-height indices (Yarcho-Kraupe, Rohrer and Quetelet indices) and proportionality indices (Erisman and Livy indices), which were within the age norm for the players of this group. The body weight of the footballers in this group was55,8±1,8 kg, body length –169,1±2,0 cm, circumference of the chest at rest –80,8±1,2 cm, circumference of the chest on inspiration –86,5±1,1 cm, circumference of the chest on expiration is 78,9±1,2 cm. For football players of 14-15 years old, the average index of the Yarkho-Kraupe index was 329,0±8,4 g/cm, the Rohrer index –11,5±0,3 c.u, the Quetelet index –19,4±0,4 c.u, Erisman index –-3,8±1,1 cm, Livy index –47,8±0,6%.Conclusions:the data of the conducted study testify to the differences in morphological parameters, weight-height indices and proportionality indices among young football players aged 14-15.
Putting the Mix in Mixed Methods Research
Authors: Jenkins Ashley M. , Bayer Nathaniel D. , Yousefi Nooraie Reza , Fiscella Kevin
Published: November 2023

Research and quality improvement in pediatric hospital medicine often benefit from using mixed methods research (MMR) approaches. MMR requires the intentional collection, analysis, and mixing, or integration, of both quantitative and qualitative data to build on their complementary strengths to answer complex research questions. In this methodology paper, we define MMR, describe its characteristics, the importance of integration, and outline the core designs of explanatory sequential, exploratory sequential, and convergent MMR by illustrating practical examples from pediatric hospital medicine.
Umbilical Cord Milking Versus Delayed Cord Clamping in Infants 28 to 32 Weeks: A Randomized Trial
Authors: Katheria Anup , Szychowski Jeff , Carlo Waldemar A , Subramaniam Akila , Reister Frank , Essers Jochen , Vora Farha , Martin Courtney , Schmölzer Georg M. , Law Brenda , Dempsey Eugene , O’Donoghue Keelin , Kaempf Joseph , Tomlinson Mark , Fulford Kevin , Folsom Bergen , Karam Simon , Morris Rachael , Yanowitz Toby , Beck Stacy , Clark Erin , DuPont Tara , Biniwale Manoj , Ramanathan Rangasamy , Bhat Shazia , Hoffman Matthew , Chouthai Nitin , Bany-Mohammed Fayez , Mydam Janardhan , Narendran Vivek , Wertheimer Fiona , Gollin Yvonne , Vaucher Yvonne , Arnell Kathy , Varner Michael , Cutter Gary , Wilson Nicole , Rich Wade ,   RRT, Finer Neil
Published: November 2023

OBJECTIVES

To determine whether rate of severe intraventricular hemorrhage (IVH) or death among preterm infants receiving placental transfusion with UCM is noninferior to delayed cord clamping (DCC).

METHODS

Noninferiority randomized controlled trial comparing UCM versus DCC in preterm infants born 28 to 32 weeks recruited between June 2017 through September 2022 from 19 university and private medical centers in 4 countries. The primary outcome was Grade III/IV IVH or death evaluated at a 1% noninferiority margin.

RESULTS

Among 1019 infants (UCM n = 511 and DCC n = 508), all completed the trial from birth through initial hospitalization (mean gestational age 31 weeks, 44% female). For the primary outcome, 7 of 511 (1.4%) infants randomized to UCM developed severe IVH or died compared to 7 of 508 (1.4%) infants randomized to DCC (rate difference 0.01%, 95% confidence interval: (−1.4% to 1.4%), P = .99).

CONCLUSIONS

In this randomized controlled trial of UCM versus DCC among preterm infants born between 28 and 32 weeks’ gestation, there was no difference in the rates of severe IVH or death. UCM may be a safe alternative to DCC in premature infants born at 28 to 32 weeks who require resuscitation.
CuBr2 ЯК БРОМУЮЧИЙ АГЕНТ ПІРАЗОЛЬНИХ ЛІГАНДІВ: СИНТЕЗ КООРДИНАЦІЙНИХ СПОЛУК КУПРУМУ(ІІ) ШЛЯХОМ ОКИСНОГО РОЗЧИНЕННЯ МІДНОГО ПОРОШКУ В ОРГАНІЧНИХ РОЗЧИННИКАХ
Authors: Виноградов Олександр С. , Давиденко Юлія М. , Павленко Вадим О. , Наумова Діна Д. , Фрицький Ігор О. , Шова Сергій , Присяжна Олена В.
Published: November 2023

Методом прямого синтезу – окисним розчиненням мідного порошку в присутності CuBr2 і C5H8N2 (3,5-диметил-1H-піразол) було виділено та ідентифіковано три різні типи кристалів. Отримано три нові координаційні спо-луки, а саме триядерну [Cu3(µ3-OH)(µ2-C5H7N2Br)(µ2-Br)3(C5H8N2)5Br]·CHCl3 (де C5H7N2Br – 4-бром-3,5-диметил-піразол) (1) (орторомбічна, Pnma) біядерну [Cu2(µ2-C5H7N2Br)(µ2-Br)(C5H8N2)4Br2]·2CHCl3 (2) (моноклінна, C2/c) та моноядерну [CuBr2(C5H8N2)3] (3) (триклінна, P ). Згідно з результатами рентгеноструктурного ана-лізу, комплекс 1 є триядерним шестичленним циклом, де атоми купруму з’єднані між собою трьома типами містків: μ2-бромід-іонами, молекулою μ2-4-бром-3,5-диметилпіразолу та μ3-гідроксогрупою. Біядерний комп-лекс 2 формується сполученням двох атомів купруму бідентатно-містковим бромід-іоном та містковою моле-кулою бромованого у 4-е положення 3,5-диметилпіразолу. Координаційна сполука 3 є моноядерним триго-нально-біпірамідальним комплексом купруму(II). Відбулося бромування певної частини молекул 3,5-диме-тилпіразолу в 4-е положення піразольного кільця. Згідно з результатами аналізу поверхні Хіршфельда, між-молекулярні контакти H···H мають найбільший внесок у кристалічну упаковку всіх сполук: 66.9 % для 1, 54.4 % для 2 і 66.5 % для 3.
ФЛУОРЕСЦЕНТНЕ КІЛЬКІСНЕ ВИЗНАЧЕННЯ АДСОРБЦІЇ ПЕПТИДІВ НА ДІОКСИДІ ТИТАНУ
Authors: Прокіпчук Ірина В. , Микитин Ігор М. , Данилюк Дмитро М. , Бедрій Мар’яна В. , Підгірна Марія Я.
Published: November 2023

Діоксид титану широко використовується як білий барвник у ліках, косметиці та харчовій промисловості завдяки відсутності смаку і запаху, хімічній стабільності в поєднанні з відмінним захистом від ультра-фіолету. Однак його безпечність як харчової добавки нещодавно була поставлена під сумнів Європейським агентством з безпеки харчових продуктів (EFSA). У цій суперечливій ситуації виникає необхідність глибшого вивчення взаємодії TiO2 з організмом людини та біологічними тканинами. Білки є основним типом біологічних молекул, які можуть взаємодіяти з TiO2 після перорального прийому препаратів, що містять TiO2. Класичний підхід до вимірювання адсорбції органічних молекул на TiO2 базується на спектро-фотометрії. Однак чутливість цього методу недостатня для вимірювання адсорбції пептидів та білків. Цю проблему можна обійти, використовуючи пептиди, ковалентно мічені флуоресцентними органічними бар-вниками, що мають відносно високі молярні коефіцієнти поглинання і велику довжину хвилі поглинання. У цій роботі було вирішено перевірити застосовність флуоресцентного кількісного визначення адсорбції пептидів на діоксиді титану. А саме, було використано 11-амінокислотний пептид, мічений флуоресцеїном, і кількісно визначено його адсорбцію на TiO2 за різної іонної сили розчину. Як результат, використання флуоресцентного методу для вивчення зв’язування пептидів з поверхнею сорбенту має кілька переваг. Використання низьких концентрацій пептидів і малих об’ємів зразків дозволяє ефективно використовувати ресурси. Надійність зчитування, малий час вимірювання та економічність роблять цей метод привабливим для майбутніх досліджень зв’язування пептидів і потенційно можуть знайти застосування в інших сферах дослідження пептидів.
ЕЛЕКТРОННО-КАТАЛІТИЧНА ІНТЕНСИФІКАЦІЯ ГОРІННЯ ТВЕРДОГО ПАЛИВА.
Authors: Вязовик Віталій М.
Published: November 2023

Вугілля – найдоступніший енергоресурс, і його споживання збільшується з кожним роком. Запаси вугілля, на відміну від нафти і газу, великі, але не безкінечні. Тому вже зараз стає питання про створення технологій, які б дозволили зменшити витрати вугілля в процесі збереження, а, за можливості, і збільшили кількість енергії його спалення. Для цього пропонується використання спрямованої дії штучно створеної низькотемпературної плазми з упорядкованим рухом «повільних» електронів. Як джерело «повільних» електронів використаний діелектричний бар’єрний розряд. Це дозволяє зменшити витрати вугілля до 20 % за витрат електроенергії 25–30 Вт·год на 1 кг вугілля і збільшити утворення летких сполук – для антрациту до 13.42 %, для газового вугілля до 24.9 %.
КВАНТОВО-ХІМІЧНЕ ОБҐРУНТУВАННЯ ІЧ АБСОРБЦІЙНИХ ХАРАКТЕРИСТИК ДЕЯКИХ СТРУКТУРНИХ ФРАГМЕНТІВ МАКРОМОЛЕКУЛ ЛІГНІНУ
Authors: Токар Андрій В.
Published: November 2023

За допомогою ab initio методів квантової хімії проведено детальне теоретичне дослідження олігомерних продуктів, що відтворюють особливості будови типових структурних фрагментів макромолекул лігніну. Структурування окремих ділянок здійснено на основі транс-коніферилового спирту як базового прототипу з його подальшою димеризацією та одержанням трьох пар ізомерних сполук із різними типами зв’язувань. Їх ранжування за рівнем відносної термодинамічної стабільності показало, що найбільш стійкими є форми (a-O-4), (b-b) та (5-5), тоді як структури (b-O-4), (b-5) та (4-O-5) виявилися дещо менш стабільними. У процесі обґрунтування спектральних характеристик цих систем із розрахунком коливальних частот у гармонічному наближенні значної уваги приділено ефектам внутрішньомолекулярного водневого зв’язування, що виникає за участю просторово ускладнених гідроксильних груп спиртового або фенольного типу, а також аналізу жорстколанцюгової системи пінорезинолу, що містить у своєму складі біциклічний каркасний фрагмент. Результати розрахунків добре узгоджуються з ІЧ спектральними даними, одержаними експериментальним шляхом, та можуть мати принципове значення з точки зору пошуку потенційних сполук-попередників для подальшого структурування цього нерегулярного біополімеру.
Teenagers in the United States: Sexual Activity, Contraceptive Use, and Childbearing, 2015-2019
Authors: Abma Joyce , Martinez Gladys
Published: November 2023

This report provides health data from the National Center for Health Statistics.
La alfabetización digital ciudadana para el desarrollo de competencias en el contexto educativo cubano
Authors: Garriga Luis Angel Santana , Ferrea Gustavo Deler , Pérez Rafael Quetglas
Published: November 2023

La transformación digital en el sector socioeducativo, resulta necesario para docentes, educandos y familia y de ahí desarrollen competencias digitales que les permitan utilizar los servicios educativos que están a su disposición que contribuyan a generar una cultura digital que les permitan desenvolverse en cualquier entorno, por lo que es necesario una alfabetización digital ciudadana que aborde los principales saberes tecnológicos, didácticos y tecnopedagógicas. El objetivo del artículo es proponer acciones para la alfabetización digital ciudadana de los docentes que permita contextualizar las nuevas tendencias de enseñanza-aprendizaje para la mejora de los procesos áulicos, institucionales o territoriales, y así, se refleje en el nivel de desarrollo de las competencias digitales para el uso de servicios educativos que estén a su disposición.  Para su desarrollo se utilizaron métodos teóricos tales como: histórico lógico, analítico sintético, sistémico-estructural y como métodos empíricos se utilizaron entrevista, la encuesta y observación a docentes que laboran en la Dirección General de Educación en La Habana. Se validaron acciones que se encuentran divididas en dos etapas, la primera de diagnóstico y sensibilización, y una segunda etapa de intervención práctica. Desde una mirada socioeducativa fue necesario incorporar elementos que contextualicen a las instituciones educativas como el lugar más cercano y desde el cual, se proyecten a la comunidad variantes de alfabetización que tributen al desarrollo de competencias digitales docentes, de los educandos y de la comunidad, las cuales se reflejen directamente en la cultura digital de los individuos, todo lo cual permita la interacción con los diferentes servicios educativos digitales.
FORMAÇÃO DE PROFESSORES EM UM COLETIVO: ALGUNS PRINCÍPIOS ORIENTADORES
Authors: Binsfeld Carine Daiana , Lopes Anemari Roesler Luersen Vieira
Published: November 2023

Este estudo se insere no campo de investigação que trata da formação de professores, a fim de compreender como esses profissionais se formam em um contexto coletivo, como o de um grupo de estudos e pesquisas. Neste artigo apresenta-se uma interpretação de ações realizadas em um grupo de estudos e pesquisas, que, a partir de alguns princípios, podem orientar a formação docente dos professores que participam dele. Tenciona-se essa formação na perspectiva da atividade, com base na premissa de que um coletivo de grupo de estudos e pesquisas que prima por ações que ultrapassam suas dimensões estruturantes oferece uma formação que, com qualidades novas, transforma os sujeitos que participam dele. Assim, desenvolveu-se uma pesquisa a partir dos pressupostos da Teoria Histórico-Cultural, com o objetivo de compreender princípios que orientam a formação de professores em um coletivo. Os dados foram produzidos a partir da análise de ações realizadas em um grupo de estudos e pesquisas, com 18 integrantes, vinculados ao grupo como acadêmicas da graduação, professoras cursando a pós-graduação e/ou professoras da Educação Básica ou do Ensino Superior que participam de seus projetos. O processo analítico, a partir da dialética entre a dimensão orientadora e executora, procurou identificar princípios orientadores da formação docente no grupo a partir das diferentes ações que ele desenvolve. Os resultados apontam que essas ações permitem que os princípios se efetivem para que ocorra a formação dos sujeitos na perspectiva de uma personalidade coletivista.
Your Memory Palace in the Metaverse with AI
Authors: Koh Immanuel , Chen Ashley
Published: November 2023

The metaverse is recognised as an immersive environment where individuals congregate as avatars to perform activities in imaginary places, similar to how they would in reality. Although promising, it has been unsuccessful in retaining novelty with current renditions of the metaverse looking unappealing and devoid of human touch, lacking in genius loci. The objective of this paper is to construct a framework for the metaverse that is built directly from the human experience to become deeply personalized and meaningful, providing users with a unique and immersive experience. This paper proposes a framework for the metaverse that leverages wearable technology and artificial intelligence (AI) to generate virtual spaces based on the conscious and subconscious experiences of individuals.
Taming Diffusion Models for Music-Driven Conducting Motion Generation
Authors: Zhao Zhuoran , Bai Jinbin , Chen Delong , Wang Debang , Pan Yubo
Published: November 2023

Generating the motion of orchestral conductors from a given piece of symphony music is a challenging task since it requires a model to learn semantic music features and capture the underlying distribution of real conducting motion. Prior works have applied Generative Adversarial Networks (GAN) to this task, but the promising diffusion model, which recently showed its advantages in terms of both training stability and output quality, has not been exploited in this context. This paper presents Diffusion-Conductor, a novel DDIM-based approach for music-driven conducting motion generation, which integrates the diffusion model to a two-stage learning framework. We further propose a random masking strategy to improve the feature robustness, and use a pair of geometric loss functions to impose additional regularizations and increase motion diversity. We also design several novel metrics, including Frechet Gesture Distance (FGD) and Beat Consistency Score (BC) for a more comprehensive evaluation of the generated motion. Experimental results demonstrate the advantages of our model. The code is released at https://github.com/viiika/Diffusion-Conductor.
A Review of Emotions in Human-Conversational Agent Interaction
Authors: Baskaran Krutheeka , Cui Wei , Kankanhalli Atreyi
Published: November 2023

Conversational agents (CA), powered by natural language processing, have become increasingly popular across multiple domains. However, these agents often fail to communicate effectively with users, leading to poor adoption and task outcomes. Emotions are a fundamental aspect of such interactions, influencing use and adoption of digital artifacts. Despite their salience, understanding of the role of emotions in human-CA collaboration remains fragmented. Motivated thus, we review empirical studies on emotions in human-CA interactions. We synthesize the findings from the reviewed studies in terms of antecedents, emotion-related outcomes, and their relationships in the form of a descriptive model. Based on the synthesis, we identify knowledge gaps and propose directions for future research. Our analysis provides insights into the role of emotions in human-CA interactions and contributes to research in this area.
Assessment of the Crew On-Duty Status Based on the Dynamic Probabilistic Risk Platform
Authors: Han Su , Li Fan , Wang Tengfei , Zhang Yanjie , Liu Qingli
Published: November 2023

Shipping operations are high risk, complex, and uncertain activities. And a ship collision can have catastrophic consequences. The behavior and status of the crew on duty are key factors that affect the navigation safety of the ship. This paper proposes a dynamic probabilistic risk platform of Maritime Accident Dynamics Simulation (MADS) and Information, Decision, and Action in a Crew context cognitive model (IDAC). The platform simulates the cognitive and decision making processes of the crew on duty in maritime incidents and dynamically analyzes the reliability of human decisions. It can predict events and their probability values that may lead to decision failures in knowledge driven task failure scenarios. The effectiveness of the platform is verified through a case study of a ship collision. The results show that the method can simulate dynamic critical scenarios of ship collision avoidance and achieve intelligent decision-making in a human centered system.
Privacy-Preserving Data Synthesis via Differentially Private Normalizing Flows with Application to Electronic Health Records Data
Authors: Su Bingyue , Wang Yu , Schiavazzi Daniele , Liu Fang
Published: November 2023

Medical data often contain sensitive personal information about individuals, posing significant limitations to it being shared or released for downstream learning and inferential tasks. We use normalizing flows (NF), a family of deep generative models, to estimate the probability density of a dataset with differential privacy (DP) guarantees, from which privacy-preserving synthetic data are generated and released. We apply the technique to an electronic health records dataset containing patients with pulmonary hypertension. We assess the learning and inferential utility of synthetic data by comparing the accuracy of hypertension predictions and the variational posterior distribution of the parameters in a physics-based model. The results suggest that synthetic data generated via NF with DP can yield good utility at a reasonable privacy cost. Our study provides evidence and adds to the growing literature on the feasibility of generating synthetic medical data for sharing or obtaining inferences from medical data using deep generate models with formal privacy guarantees.
An overview of green and sustainable polymeric coatings
Authors: Jouyandeh Maryam , Seidi Farzad , Habibzadeh Sajjad , Hasanin Mohamed S , Wiśniewska Paulina , Rabiee Navid , Vahabi Henri , Ramakrishna Seeram , Saeb Mohammad Reza
Published: November 2023

Synthetic polymers have to be replaced with green counterparts for sustainability needs. Green and sustainable polymeric coatings have progressively undergone development as functional and protective materials for myriad applications ranging from packaging to biomedicine. Despite such innovative and environmental benefits, they are not adequately competitive in terms of properties to displace synthetic polymeric coatings. Functionalization of the surface and/or the bulk of green polymeric coatings by functional groups, natural polymers, nanoparticles, cross-linking agents, antifouling precursors and synthetic polymers can strengthen their properties and widen their performance window. However, definitions and terms related to green and sustainable coatings have not been systematically addressed. Biomass-, plant-oil-, carbohydrate-, protein- and microbe-based polymeric coatings are the main classes of sustainable polymeric coatings briefly overviewed herein. The technological bottlenecks toward commercialization of sustainable coatings and films are also highlighted.
Elaboración de la cartografía social como herramienta de descripción de la comunidad
Authors:   Universidad Cooperativa de Colombia, Suárez Morales Andrés , Martínez Barreto Aida Ingrith
Published: November 2023

La cartografía social o mapa parlante, como algunos lo suelen llamar, es un instrumento, que nos permite aproximarnos a las realidades psicosociales de los individuos y de sus comunidades, permitiendo por medio del dibujo, gráficas y descripciones que hacen los individuos de su contexto sociocultural, conocer cómo entienden las diferentes problemáticas que se presentan en su entorno relacional. Este instrumento no solo se enfoca en ver las dificultades, problemas o vulnerabilidades, sino que rescata todas esas fortalezas y capacidades instaladas que poseen las comunidades. A su vez, es una propuesta de corte participativo, donde cada actor social desde su subjetividad describe su comunidad u otros tipos de entornos, sean estos laborales, educativos, etc. Para el estudiante en formación en el área disciplinar del curso de social comunitaria, esta guía tiene como finalidad orientarlo en su proceso de elaboración de la cartografía social. Se tiene en cuenta que esto permite que el estudiante sea un actor social que a partir de su conocimiento adquirido pueda elaborar y aportar a la elaboración de esta, teniendo como insumo su experiencia. También el entorno social y toda su historia le ayudan a establecer una relación dialógica entre la comunidad y la experticia que va construyendo desde su formación como psicólogo.
Committing to Grow: Privatizations and Firm Dynamics in East Germany
Authors: Akcigit Ufuk , Alp Harun , Diegmann André , Serrano-Velarde Nicolas
Published: November 2023

This paper investigates a unique policy designed to maintain employment during the privatization of East German firms after the fall of the Iron Curtain. The policy required new owners of the firms to commit to employment targets, with penalties for non-compliance. Using a dynamic model, we highlight three channels through which employment targets impact firms: distorted employment decisions, increased productivity, and higher exit rates. Our empirical analysis, using a novel dataset and instrumental variable approach, confirms these findings. We estimate a 22% points higher annual employment growth rate, a 14% points higher annual productivity growth, and a 3.6% points higher probability of exit for firms with binding employment targets. Our calibrated model further demonstrates that without these targets, aggregate employment would have been 15% lower after 10 years. Additionally, an alternative policy of productivity investment subsidies proved costly and less effective in the short term.
SPECIFICITY OF CONSTRUCTING A RADICAL RIGHT AGENDA IN CONTEMPORARY UNIT-ED KINGDOM
Authors:   Chelyabinsk State University, Golovin M. S.
Published: November 2023

Right-wing political parties have been significant actors in the political process in many European countries for the last two decades now. Their influence on the party-political landscape of Europe, including the electoral one, is explained by the fact that in the face of the challenges of globalization, many of these parties were able to qualitatively transform their discourse, involving the actualities of our time, adapting them to their own ideological platform. However, there are several facts that distinguish the British case of right-wing radicalism from the continental European one. The author studies the features of the discourse of the right-wing radicals of the Britain using the example of one of the officially registered right-wing parties – «For Britain» - and identifies the main elements of the discourse of this party in the context of globalization, immigration flows, the application of ideas of political correctness to practice. Despite the party leadership's decision in the summer of 2022 to terminate its existence, its ideas do not cease to influence large number of Britons. Finally, the author identifies, the main categories of nationalist discourse, and analyzes how they are instrumentally used by the "For Britain" party in constructing its ideology.
RUSSIAN YOUTH’S POLITICAL TRUST: SELF-ASSESSMENT AND EXPERT OPINION
Authors:   Saint Petersburg State University, Popova O.V. ,   INION RAS, Grishin N. V. ,   Saint Petersburg State University,   INION RAS
Published: November 2023

An analysis of the results of two empirical studies of the political trust of Russian youth conducted in the fall of 2022 — an all-Russian online youth survey and an expert survey — was carried out. Empirical studies were a part of the implementation of the research project "Political Trust of the Russian Youth: Formation Mechanisms, State, Trends, Systemic Risks". The self-assessment of the political trust of young people included the identification of their attitude towards the institutions of power, as well as to NGOs, and politicians of all levels. The expert survey was based on the application of the non-standardized interview method. A variable was calculated to clarify the issue of the proportion of those who did not trust the authorities, demonstrating low, medium and high indicators of political trust. Compared to previous online surveys, trust anti-rating indicators grew significantly. A split was revealed in the assessment of young people's regard of the domestic and foreign policies and the activities of certain institutions. Data was obtained on the differentiation of the political trust of young people in certain political institutions. Age/generational explanations for the differences in the political attitudes of young people showed differences between the three age groups of young people.
La problemática del endosulfán: aspectos químicos, analíticos y ambientales
Authors: Betancur J. Luz Adriana , Ocampo C. Rogelio , Rios V. Luz Amalia
Published: November 2023

Introducción. Dado el carácter residual y el alto nivel de toxicidad del endosulfán, se ha incrementado la preocupación a nivel mundial por su impacto ambiental. Por eso la búsqueda de metodologías analíticas que permitan su detección y cuantificación es un tema de investigación vigente. Las propiedades del endosulfán y su patrón de degradación le confieren características que hacen muy compleja la problemática, al tiempo que el pesticida y sus metabolitos se expanden extensivamente por la atmósfera y contaminan tanto matrices lipofílicas como hidrofílicas. Objetivo. Llevar a cabo una revisión sobre las investigaciones más recientes acerca de la problemática del endosulfán, que incluye aspectos químicos, su problemática ambiental y técnicas inmunoquímicas para su análisis, tema en el que ha estado interesado nuestro grupo de investigación en la Universidad de Caldas. Método. El presente artículo de revisión analiza, cualitativamente, la literatura científica disponible en las bases de datos Science Direct, PubMed, Scielo y páginas Web oficiales, empleando como palabras de búsqueda: endosulfán, haptenos, análisis inmunoquímico del endosulfán, problemática ambiental del endosulfán, regulaciones internacionales sobre el endosulfán, normatividad vigente sobre el endosulfán, y métodos instrumentales de análisis. Resultados. Se obtuvo información pertinente relacionada con el objetivo propuesto, la cual se presenta en 3 secciones: aspectos químicos del endosulfán, problemática ambiental y técnicas inmoquímicas para su análisis. Conclusión. El endosulfán ha sido prohibido por los organismos internacionales. Sin embargo, el pesticida se continúa usando en algunos países y éste se difunde fácilmente hacia otras regiones, de tal manera que se ha convertido en un problema global. Hay investigaciones recientes sobre métodos de remediación química o biológica, pero los esfuerzos son modestos frente a la enorme problemática de este pesticida. En lo pertinente a análisis químicos de endosulfán, en los últimos 15 años se han investigado técnicas inmunoquímicas de análisis (basadas en haptenos), como alternativa a los métodos cromatográficos instrumentales.
Cuantificación de los hidrocarburos aromáticos policíclicos (HAP) en el material particulado pm2.5 de una zona residencial de Pamplona, Colombia
Authors: Quijano Parra Alfonso , Quijano Vargas Mónica Juliana , Meléndez Gélvez Iván
Published: November 2023

Los contaminantes del aire han sido, y siguen siendo, los principales factores que contribuyen a enfermedades pulmonares obstructivas crónicas (EPOC), enfermedades cardiovasculares (ECV), asma y cáncer. El ozono, los óxidos de azufre, monóxido de carbono, óxidos de nitrógeno y el material particulado constituyen los contaminantes del aire. En este estudio se realizó la cuantificación de hidrocarburos aromáticos policíclicos (HAP) presentes en muestras de material particulado fracción respirable PM2.5 del aire de la ciudad de Pamplona (Norte de Santander, Colombia). Inicialmente la materia orgánica presente en el material particulado PM2.5 se extrajo por ultrasonido, seguido de la concentración por rotaevaporación, obteniéndose el extracto global, parte del cual se sometió a un proceso de fraccionamiento en una columna de silicagel. Finalmente se obtienen cuatro fracciones. La cuantificación de los HAP presentes en el material particulado PM2.5, el extracto global y las cuatro fracciones se realizó en un cromatógrafo de gases Agilent 6890 plus con detector FID. Entre los HAP identificados se encuentran: naftaleno, fluoreno, fenantreno, benzo(a)antraceno, pireno, dibenzo(a,h)antraceno e indeno(1,2,3,cd)pireno, estos HAP son compuestos tóxicos, mutágenos y carcinógenos para los animales y los seres humanos según la agencia internacional de investigación del cáncer (IARC).
Fenología de dos plantas nutricias, Centrosema triquetrum y Rorippa indica, para producción comercial de mariposas en la reserva Paway, en el municipio de Mocoa (Putumayo)
Authors: Ortiz Martinez Mildred Alejandra , Morales Velasco Sandra , Tobar Mesa José Manuel
Published: November 2023

El Instituto Alejandro von Humboldt registra aproximadamente 3800 especies de mariposas para Colombia y en particular 350 para la Amazonía; que por sus características se han posicionado como una alternativa de biocomercio, pero una limitante para la reproducción, es la selectividad en su alimentación (monófagas). Por lo anterior, se realizó el estudio fenológico de dos plantas nutricias, Centrosema triquetrum y Rorippa indica, para la producción comercial de mariposas Morpho helenor, Ascia monuste y Leptophobia aripa, en la Reserva Paway (Mocoa - Putumayo), para planificar la producción, garantizando calidad y cantidad. Para la evaluación fenológica se tuvieron en cuenta cuatro fases (germinación, emergencia, desarrollo de las hojas y floraciónmadurez) y dos variables ambientales (temperatura y humedad relativa). El consumo de alimento se realizó suministrando forraje verde durante el desarrollo del ciclo larvario de las mariposas, en grupos de cinco orugas por especie. Paralelamente se calculó el porcentaje en materia seca para cada especie. Se determinó que Rorippa indica presenta un ciclo fenológico de 74 días, Centrosema triquetrum al cabo de un año no había florecido. La humedad presentó una correlación altamente significativa (p ≤ 0,01) para el desarrollo de las dos especies vegetales y la temperatura (p ≤ 0,01) para C. triquetrum. El ciclo larvario de Morpho helenor fue de 86 días, 20 para Ascia monuste y Leptophobia aripa, periodo en el que se les suministró forraje verde de la respectiva planta nutricia, consumiendo en promedio 22,9 gramos.
Dinámica de sistemas, una herramienta para la educación ambiental en ingeniería
Authors: Ibarra Vega Danny W. , Redondo Johan Manuel
Published: November 2023

Este trabajo presenta parte de la experiencia acumulada en la utilización de la Dinámica de Sistemas, como herramienta para la educación ambiental de estudiantes de ingeniería de la Universidad Sergio Arboleda. A partir de la Dinámica de Sistemas, se recrean diversos escenarios que permiten al estudiante tener una percepción sistémica del mundo real y visualizar su dinámica. Dado que el medio ambiente es un sistema complejo, la utilización de la Dinámica de Sistemas favorece la identificación de relaciones no lineales entre los atributos ambientales, la modelización y la extensión a otras técnicas de comprensión como lo es la teoría matemática de los sistemas dinámicos, favoreciendo así la inclusión de lo ambiental de forma transversal en el currículo, pero además, permitiendo la apropiación de elementos indispensables en el ejercicio profesional de un ingeniero. De este modo, presentamos tres ejemplos de trabajos con Dinámica de Sistemas que se pueden implementar con estudiantes de ingeniería para introducir conceptos ambientales, que fueron desarrollados en la línea de investigación de Ciencias de la Complejidad y Medio Ambiente de la Universidad Sergio Arboleda, con algunos de sus estudiantes de ingeniería. Se concluye que la utilización de la Dinámica de Sistemas en la enseñanza de conceptos ambientales, actúa como pauta que conecta diferentes campos del conocimiento requeridos para la comprensión de la situación ambiental actual del planeta, convirtiéndose así en una herramienta para la transdisciplinariedad en ingenierías.