bluuebunny/crossref_metadata_2025 huggingface dataset:
Перспективы использования отходов нефтехимии в качестве модификаторов волокнистых добавок для синтетических каучуков
Authors: Пугачева Инна Николаевна , Никулин Сергей Саввович , Молоканова Лариса Витальевна
Published: January 2023

В статье предложен перспективный подход к переработке вторичных полимерных материалов в ингредиенты для резинотехнических изделий. Это позволит не только решить вопросы экологического характера, но и вопросы импортозамещения наряду с удешевлением материалов. Показано, что отходы текстильной промышленности могут быть переработаны в волокнистые добавки для синтетических каучуков. Определено, что их введение в эластомерные композиции на стадии коагуляции способствует повышению эффективности процесса и его экологичности. Выявлено, что вулканизаты, полученные на основе каучуков, наполненных волокнистыми добавками, по своим эксплуатационным характеристикам соответствуют предъявляемым требованиям. Однако для улучшения прочностных характеристик было бы целесообразно вводить модифицированные волокнистые добавки. В этом случае роль модифицирующего агента могут выполнять олигомеры полученные из отходов нефтехимии. Установлено, что совместное введение волокнистой добавки и олигомера в виде водной волокно-олигомерно-антиоксидантной дисперсии является эффективным приемом. Показано, что такая комплексная добавка позволяет получить вулканизаты с улучшенными свойствами.
ENTREPRENEUR’S OPINIONS AND CONSCIOUSNESS ABOUT GOODS AND SERVICES TAX (GST) IMPLEMENTED IN SELECTED CITIES
Authors: Barot Gaurangkumar C.
Published: January 2023

Purpose: To know the entrepreneur’s General Awareness and perception, knowledge and information of about GST.
Design/ Methodology/ Approach: After reviewing various kinds of literature related to GST and its implication by the government. It is very important to know the opinions, General Awareness and perception, knowledge and information and observations of entrepreneurs about GST. As per the objective of the study, a hypothesis was set. For the testing of the hypothesis, a primary survey/study of 500 samples taken through a structured questionnaire. Collected data converted into tabular form. As per the suitability of data, a statistical test applied to it.
Findings: What are the main problems faced by the entrepreneurs about GST and what is lacking to get the knowledge of it. On which point government and society should work, more indicated here.
Research Limitations / Implications: The study is considering 20 percent of the population. Also, three cities (Business Hub Area) i.e. Silvassa, Daman & Vapi.
Practical implications: Suggestions for the betterment and make more simple GST various Suggestions are given in this study. Moreover, Government and Society should adopt these suggestions, not only in this limited area but it can apply to the National level. The Central government also takes into consideration all these things while in the next meeting of the GST Council.
Originality / Value: The paper is fully original as primary data collected from entrepreneurs of these selected cities (which is Business Hub). Furthermore, in this area, any research scholars did not complete this kind of study previously.
NEW EDUCATION POLICY AND ACADEMIC REFORMS: CHALLENGES FOR HIGHER EDUCATION INSTITUTIONS (HEIS)
Authors: Dutta Neeti
Published: January 2023

Post-Independence Indian higher education has grown phenomenally in terms of its size. But barring few higher education institutions, majority of the institutions are not at the level of international ranking. The reasons maybe they have not changed themselves in functioning and undervalues the changing needs of the students, market and society as whole. In fact, many of the higher educational institutions have not changed their curriculum for decades. As a result, students coming out these HEIs, found themselves unfit for today global challenges. NEP-2020 has identified academic areas that needs to be radically changed so that higher education become relevant. NEP-2020, has recommended that Choice-Based Credit system (CBCS), Multiple Entry and Exit system, Research intensive undergraduate and postgraduate programs, skill integrated educational programmes, Academic Bank of Credits etc. are some of the academic reforms that needs to implemented in higher education institutions so that institutions and their products can compete globally. But these academic reforms are not easy to implement especially at state funded universities and colleges because it requires support from governments. There are challenges and present paper discuss few of those challenges which would be faced by the higher education institutions
ENGLISH TEXTBOOK ANALYSIS: SECONDARY LANGUAGE PERSPECTIVE FROM THE KERALA STATE BOARD
Authors: George Nayana
Published: January 2023

The textbook is an integral tool in the ELT classroom, often functioning as the primary source of teaching material. The education system in the Indian context places quite a lot of importance on textbooks in their curriculum as a central part of the syllabus dissemination. The English textbooks under consideration in this paper are targeted at grades 10th, 11th, and 12th and are formulated by the Kerala State Council of Educational Research and Training (SCERT) used for the schools affiliated to and following the Kerala State Board of Education. These textbooks are critically analysed using qualitative content analysis on the included reading material and the suggested activities to evaluate them as appropriate tools for second-language development. Through such a critical analysis, it is established that these textbooks are quite well-developed and all-rounded tools for second-language development, which could succeed in fulfilling all the learning objectives and achieving all the learning outcomes when used in an ideal classroom.
FACTORS INFLUENCING CAREER ASPIRATIONS AMONG STUDENTS OF JASHPUR DISTRICT OF CHHATTISGARH STATE IN INDIA
Authors: Maravi Rupmati , Shukla Prabhavati
Published: January 2023

The aim of the present study is to identify the factors influencing the career aspiration of the students in Jashpur district of Chhattisgarh state in India. Data were collected from (N = 1000, Age = 15 to 18 years) higher secondary school going students. Student’s gender (Male and Female), Birth category (Tribal and Non-Tribal) and parental involvement were taken as the independent factors to predict their career aspiration. Hierarchical multiple regression model was used to analyze the results. Results of the study revealed that the birth category of the adolescents significantly predict the career aspiration (F (1,997) = 13.271, p<0.05). However, gender and parental involvement of the students didn’t show any significant influence on the career aspiration of the students. Implications and future directions of the study were also discussed.
SCHOOL HYGIENE: A STUDY OF SELECT GOVERNMENT SCHOOLS IN DELHI
Authors: Puri Seema , Gulati Nidhi
Published: January 2023

This paper explores school as the site for examining hygiene and cleanliness. The aims of the study were to examine aspects of school hygiene, understand children’s needs and to equip primary school children with tools and capacities to develop and sustain body and environmental hygiene through an intervention.
Children studying in primary classes from twelve schools run by the local urban municipal body in Delhi participated in the study. 846 and 656 children were interviewed during pre and post intervention phases respectively. Data was collected in the form of observations, interviews and children’s responses on hygiene practices. Data was coded and subjected to statistical analysis. Based on data obtained in the baseline assessment, a Health Hygiene Education Module was designed. The pedagogy was based on discussions, demonstrations, storytelling, activities, interactive games and takeaways. Post intervention, a significant increase in percentage of children who reported following effective practices in aspects of oral hygiene, handwashing and use of toilets. Children were motivated and keen to learn. However, lack of infrastructure, resources and basic facilities like running water and soap was observed. Supervision and monitoring of all aspects of hygiene in the school needs to be strengthened
Implications of Plant Foods in Weight Management: Focus on Metabolic Health
Authors: Jurek Joanna Michalina
Published: January 2023

Plant foods are important component of human diet and they are excellent source health-promoting compounds, such as amino acids, dietary fibers, complex carbohydrates, unsaturated fatty acids, as well as minerals and vitamins which have been shown to increase vitality and subsequently reduce risk of chronic disease. Importantly, eatable plants despite relatively low caloric value are nutrient-dense foods, which are rich in various phytochemicals, such as polyphenols, that have been found to be beneficial for improving metabolic health, in particular lowering systemic inflammation, increasing antioxidant capability and promoting weight loss. To date, epidemiological evidence consistently demonstrated a beneficial impact of adopting plant-based dietary lifestyle characterized by increased intake of whole unprocessed foods, including fresh vegetables and fruits, whole grains, pulses and legumes as well as nuts and seeds, in expense of processed meats, refined carbohydrates and added sugar foods, have potential to reduce risk of high burden diseases, such type 2 diabetes, obesity or cardiovascular disease. Consequently, to assess the most applicable composition of plant-based diets for achieving metabolic improvements, nutritional value of consumed plants should be evaluated. Therefore, accounting for differences in phytochemical content of various fruits, vegetables, grains, pulses, nuts and seeds the main aim of this literature review is to assess the recent clinical evidence of their contribution to weight management, and reduction of risk factors implicated in development of chronic conditions, such as cardiovascular diseases, diabetes or obesity.
Teachers’ Perceptions of Multiple Trade Unions in Promoting Professional Development among Teachers
Authors: Elias Tinus Range , Iramba Freddie
Published: January 2023

The purpose of this study was to examine teachers’ perceptions of multiple trade unions in promoting professional development among teachers. The study objective specifically was; to examine teachers ‘perceptions of multiple trade unions in promoting professional development among Teachers. The study was in form of qualitative, it was a case study design involving ten public secondary school (A-J) in Dodoma city council. The population were Trade Unions’ Members, Trade Unions’ Leaders and Tanzania Registrar of Trade Unions. The sampling procedure used was purposive only, the sample size of 44 participants was employed. Two research instruments were used (focused group discussion and interview). Data was analyzed by using six stages of thematic analysis. The findings revealed teachers’ perceptions of multiple trade unions to promote professional development such as; reformation of the law of labour relation and education policy, collaboration between trade unions and the government in educational issues .Also to establish some programs such as trainings, workshops and seminars to promote teachers‘ professionalism. The government  recommended to change the law of labour relation so as to reboots trade unions activities .Thus leaders of multiple trade unions were advised to re-examining the leadership  and make restorations where necessary to make sure that unions’ activities are revived once again..
The Study of Electrical Energy Consumption Generated from Solar Energy as A Renewable Energy Resource Applied by Theme Park in Malaysia
Authors: Nur Fatini Ramli  , Ariza Sharikin Abu Bakar
Published: January 2023

The vast amounts of energy are required to keep theme parks operating. Thus, the problem of air pollution may be exacerbated by the increased use of electricity to power the attractions and facilities. Renewable energy technology is vital in reducing energy consumption and maintaining a clean environment. The purpose of this study is to identify the energy consumption of electricity generated from renewable energy technology of solar and to identify the barriers to implementing renewable energy technology at Malaysia’s theme parks. Different parameters of energy systems such as electricity consumption and electricity charges have been proposed to answer the energy consumption of electricity generated from renewable energy technologies applied by theme parks in Malaysia. The investigation involved site observation and interviews at two theme parks in Malaysia, followed by questionnaire surveys at eleven theme parks that did not use renewable energy technologies. It is found that using renewable energy technology such as solar energy at ESCAPE theme park saves the cost of electricity charges by about 44%. The total cost of the ESCAPE theme park is not higher cost for about RM 1,074,644.60 compared to the total cost of Lost World of Tambun, which is about RM 1,849,784.40, based on a five-year estimation of all three costs for the theme park management in terms of initial cost, installation cost, and operation & maintenance cost for solar energy and electricity. The findings of this study can assist Malaysian theme parks to reduce energy usage and; as a result, spending less on electricity by utilising renewable energy technologies.
Covid 19: Implementation of Digital Interactive Teaching and Learning (Ditl) in the ‘Statistics for Social Science’ Course
Authors: Norlaila Abdullah Chik  , Nur Aili Hanim Hanfiah  , Nor Suzylah Sohaimi  , Farahiyah Fadzil
Published: January 2023

The spread of COVID-19 has drastically changed the community's norms or lifestyles, including public or private servants working from home (WFH). WFH also occurs among staff at the school and university. All students and educators were encouraged to continue their teaching and learning sessions online. The lecturers had to continue teaching and learning (T&L) at the university level via e-learning or electronic learning, including calculation courses such as statistics. At UUM, the ‘Statistics for Social Science’ course is one of the courses offered for social science students, and it is a compulsory subject. Most students have studied statistics courses in high school, and some are not interested in the calculation course, particularly when it becomes a compulsory course at the university level. University management introduced various methods to ensure the lecturers and students can fulfil their roles in teaching and learning. Therefore, universities introduced DITL through online workshops and training for lecturers and students. This study aims to examine the effectiveness of DITL on students of the 'Statistics for Social Sciences' course during COVID-19. The methods used are descriptive statistics, Pearson correlations, and regression analysis. The results were found moderately effective based on a mean score of 3.53. The Pearson correlation results show a positive and significant relationship between Course Delivery (lecturers’ delivery, course assessment, and course content) and DITL. The descriptive analysis result of DITL confirms the results. Based on the result of simple regression analysis, it shows that Internet Speed affects the DITL and H null failure to accept. In conclusion, DITL can be continued during the COVID-19 pandemic as it aligns with the advancement of information and communication technology (ICT). Therefore, ICT in teaching and learning has been implemented as well as possible, even during COVID-19.
Indoor Thermal Comfort Perception at Atrium Zone: Case Study of Naturally Ventilated Public Market
Authors: Azhar Ghazali  , Wan Muhd Zakwan Wan Zin  , Mazran Ismail
Published: January 2023

Public markets are normally designed with passive design strategies such as natural ventilation and lighting. Besides, the atrium has become one of the architectural features to be designed in this building. The atrium attracts more visitors due to its spacious space. However, issues with inadequate ventilation, uncomfortable smell, overheating, and uneven daylight distribution might affect the condition of occupants in the zone. Therefore, this research is to study the thermal comfort perception of occupants in the public market, especially the traders, and investigate the indoor thermal comfort level for the atrium zone in the public market. Data was documented via the survey questionnaire and field measurement in the atrium environment. Two case studies were recognized as the main focuses namely Pasar Siti Khadijah (PSK) and Pekan Rabu (PR). The study was mainly conducted in the atrium zone of the building. The thermal comfort parameters such as air temperature, air velocity, and relative humidity were recorded, and the data were correlated to the result of the survey questionnaire. The results of the analysis show the traders felt slightly dissatisfied with the indoor air temperature and air velocity. The average air temperature of both atriums was not within the suggested comfort temperature by previous studies. A few suggestions have been highlighted to improve the thermal comfort of both atriums.
Relationship Between Energy Consumption and Industrial Output-Based on GMM Model of Dynamic Panel Data in China
Authors: Dayao Li  , Faizal Baharum  , Chengguo Jin
Published: January 2023

At present, China is in the historical intersection period of the "two centenary" goals. The realization of the "carbon neutral" goal has brought new opportunities for the development of China's energy sector. Based on the GMM estimation method of the dynamic panel model, this paper studies the relationship between energy consumption and industrial output by using China's provincial data from the years 2008 to 2018. The results show that the impact of coal consumption on industrial output tends to be declining during the sample period. However, compared with other energy consumption, it still dominates a larger proportion. Oil consumption has a negative impact on industrial output with the arrival of a production bottleneck period and the improvement of technology level. As a secondary energy, electricity consumption has an important impact on the industrial output, which is the main energy variable and is significantly positive. Other energy consumption variables have significant positive effects on industrial output. In this paper, we obtain countermeasures and suggestions on energy, such as giving full play to the decisive role of the market, improving the innovation environment in the field of energy, speed up the transformation of new and old kinetic energy.
Confusion Matrix as Performance Measure for Corner Detectors
Authors: Nurul Ehsan Ramli  , Zainor Ridzuan Yahya  , Nor Azinee Said
Published: January 2023

Nowadays, corner detection algorithms have been proposed by several researchers who described them contrarily, depending on their respective viewpoints to obtain the data and information as a human eye does. Basically, no researchers have come up with a technique to compare corner detectors with another’s. Thus, this study proposed to adapt the confusion matrix technique as a performance measure for corner detectors. The judgement accuracy of every corner detector will only be pleased if the actual corner points are already known. Therefore, this study is attracted to explore the accuracy of corner detectors, namely the Global and Local Curvature Scale space (GLCSS), Affine Resilient Curvature Scale Space (ARCSS), and Harris. These corner detectors were analysed using the nine characters selected from Jawi, Chinese, and Tamil characters, three characters each, respectively. This study specifically detected the true corners for these characters using the determined corner detectors. The actual corner of all these characters was confirmed through a survey of twenty respondents. The majority of marked corners by respondents were considered actual corner points. Then, the input image for all characters was converted into a grayscale image. Every image will undergo pre-processing step, the process of boundary extraction using Canny edge detector. Thus, the edge image was extracted to get the corner point by applying the corner detectors, and the corner point detected was marked on that image. Above and beyond, the study aims to introduce a confusion matrix approach as a performance measure to carry out the most outstanding algorithm in detecting the true corner points for all the tested characters. From the evaluation, GLCSS and Harris algorithms have shown good accuracy. Henceforth, the study is not trying to judge the goodness of each corner detector but only to introduce confusion matrix as a tool that can be considered to measure the performance of the corner detector.
Developments of Façade Design with a Special Reference to the City Hotels in Kuala Lumpur
Authors: Muhammad Hafeez Abdul Nasir  , Ahmad Sanusi Hassan  , Mohd Nasrun Mohd Nawi  , Aimi Salihah Abdul Nasir  , Mohamad Sukeri Khalid
Published: January 2023

The study examines the façade design developments of the high-rise city hotels since the 1960s post-colonial period in Malaysia. Strategically located in the tourist hub of Malaysia’s capital, three case studies of high-rise city hotels built in different architectural periods notably the 1970s Modern, the 1990s Post-Modern and the contemporary Neo-Minimalist, were meticulously selected to undertake a visual survey on the façade design elements. The high-rise hotel façade design in Kuala Lumpur as reviewed, historically began as a modest extension of shop houses and gradually metamorphosed into high-rises embodying a creative interplay of colour, material features, and climate responsive mechanisms as the architectural timeline advances. Ranging from the simplistic Modernist ideals of the International Style to the regionalist approach of the Post-Modernism and ultimately the Neo-Minimalism, each of the case studies is systematically reviewed from the spectrum of contextual history, functionality, and the aesthetics of the façade design elements. Evidently, the outcome of the study underscores the architectural developments of the city hotel façade design as expressive of the hotels’ image for contemporary trends in urban hospitality alongside a reconciliation of the capital’s tourism history.
Parameter study of porosity effects on surface temperature for a porous block under wind, water source and thermal radiation
Authors: Mohammad Yaghoub
Published: January 2023

Parameter study of porosity effects on surface temperature for a porous block under wind, water source and thermal radiation
Fungal Growth Physicochemical Properties Inhibition by Novel Zinc Oxide/ Glutinous Tapioca Starch Composite
Authors: N. F. Rosman  , M. Z. Nurfazianawatie  , H. Omar  , N. S. A. Malek  , Nadya Hajar  , I. Buniyamin  , S. Abdullah  , M. Rusop  , N. A. Asli
Published: January 2023

Mango suffers from numerous diseases throughout its life due to fungal growth. Primarily, mango is infected with anthracnose, a disease caused by Collectotrichum gloeosporioides. In the present study, mango fruits were coated with zinc oxide (ZnO) and tapioca starch solution at different concentrations and stored at room temperature for a week. The growth of any black spots on the outer surface of the fruit peel was observed at two-day intervals. The mixed coating material, consisting of ZnO and tapioca starch, inhibited fungal growth. The field-emission scanning microscope (FESEM) results demonstrated that the nanoparticles were uniformly coated on the mango samples. Applying the ZnO coating also effectively maintained the quality attributes and extended the shelf life of the fruits. Consequently, the ZnO and starch coating could be an alternative safe coating technique of protecting mango fruits against anthracnose infection, hence prolonging the freshness and avoiding economic losses during transportation, marketing, and storage.
LANDSCAPE CHANGE OF LAND USE IN THE KARST REGION OF JINAN CITY, NORTH CHINA
Authors: Qi Shanzhong , Heng Fuxin , Ji Lina
Published: January 2023

With the rapid development of urbanization, land use change has occurred in most karst mountain regions of North China over the last decade, so studying landscape pattern changes induced by urbanization would have implicational significance to regional planning and sustainability. Based on RS, GIS, and field investigation, land use change induced by urbanization in Jinan city belonging to the karst mountainous area of North China was analyzed over 30 years from 1987 to 2018, and further the landscape response of these changes was explored. The results indicate that (1) the most obvious changes have occurred in both urban/built-up land area and cropland area with rapid urbanization development in Jinan’s karst area, and the former increased by 246.4 km2 but the latter decreased by 343.3 km2 from 1987 to 2018; (2) landscape pattern of land use is profoundly changed by quick urbanization in the period from 2000 to 2018, but does not siginificently from 1987 to 2000; and (3) in the monitoring period, the cropland’s shape inclines to fragmentation and regularization, and the shapes of urban/built-up land and barren land have become increasingly distinct from the patch class level; from patch landscape level, the artificial landscape type (urban/built-up land) is increasingly dominant but the natural landscape type (grassland) is decreasingly dominant, thereby resulting in the disturbance of urban karst environment of Jinan city. Therefore, a protection policy should be taken to achieve strong urban karst sustainable development of North China.
Metallicity–PAH Relation of MIR-selected Star-forming Galaxies in AKARI North Ecliptic Pole-wide Survey
Authors: Shim Hyunjin , Hwang Ho Seong , Jeong Woong-Seob , Toba Yoshiki , Kim Minjin , Kim Dohyeong , Song Hyunmi , Hashimoto Tetsuya , Nakagawa Takago , Nanni Ambra , Pearson William J. , Takagi Toshinobu
Published: January 2023

We investigate the variation in the mid-infrared spectral energy distributions of 373 low-redshift (z < 0.4) star-forming galaxies, which reflects a variety of polycyclic aromatic hydrocarbon (PAH) emission features. The relative strength of PAH emission is parameterized as q
PAH, which is defined as the mass fraction of PAH particles in the total dust mass. With the aid of continuous mid-infrared photometric data points covering 7–24 μm and far-infrared flux densities, q
PAH values are derived through spectral energy distribution fitting. The correlation between q
PAH and other physical properties of galaxies, i.e., gas-phase metallicity (

12
+
log
(
O

/

H
)

), stellar mass, and specific star-formation rate (sSFR) are explored. As in previous studies, q
PAH values of galaxies with high metallicity are found to be higher than those with low metallicity. The strength of PAH emission is also positively correlated with the stellar mass and negatively correlated with the sSFR. The correlation between q
PAH and each parameter still exists even after the other two parameters are fixed. In addition to the PAH strength, the application of metallicity-dependent gas-to-dust mass ratio appears to work well to estimate gas mass that matches the observed relationship between molecular gas and physical parameters. The result obtained will be used to calibrate the observed PAH luminosity-total infrared luminosity relation, based on the variation of MIR-FIR SED, which is used in the estimation of hidden star formation.
Changes of Magnetic Energy and Helicity in Solar Active Regions from Major Flares
Authors: Liu Yang , Welsch Brian T. , Valori Gherardo , K. Georgoulis Manolis , Guo Yang , Pariat Etienne , Park Sung-Hong , Thalmann Julia K.
Published: January 2023

Magnetic free energy powers solar flares and coronal mass ejections, and the buildup of magnetic helicity might play a role in the development of unstable structures that subsequently erupt. To better understand the roles of energy and helicity in large flares and eruptions, we have characterized the evolution of magnetic energy and helicity associated with 21 X-class flares from 2010 to 2017. Our sample includes both confined and eruptive events, with 6 and 15 in each category, respectively. Using the Helioseismic and Magnetic Imager vector magnetic field observations from several hours before to several hours after each event, we employ (a) the Differential Affine Velocity Estimator for Vector Magnetograms to determine the photospheric fluxes of energy and helicity, and (b) nonlinear force-free field extrapolations to estimate the coronal content of energy and helicity in source-region fields. Using superposed epoch analysis, we find, on average, the following: (1) decreases in both magnetic energy and helicity, in both photospheric fluxes and coronal content, that persist for a few hours after eruptions, but no clear changes, notably in relative helicity, for confined events; (2) significant increases in the twist of photospheric fields in eruptive events, with twist uncertainties too large in confined events to constrain twist changes (and lower overall twist in confined events); and (3) on longer timescales (event time +12 hr), replenishment of free magnetic energy and helicity content to near preevent levels for eruptive events. For eruptive events, magnetic helicity and free energy in coronal models clearly decrease after flares, with the amounts of decrease proportional to each region’s pre-flare content.
Deep Potential: Recovering the Gravitational Potential from a Snapshot of Phase Space
Authors: Green Gregory M. , Ting 丁 Yuan-Sen 源森 , Kamdar Harshil
Published: January 2023

One of the major goals of the field of Milky Way dynamics is to recover the gravitational potential field. Mapping the potential would allow us to determine the spatial distribution of matter—both baryonic and dark—throughout the galaxy. We present a novel method for determining the gravitational field from a snapshot of the phase-space positions of stars, based only on minimal physical assumptions, which makes use of recently developed tools from the field of deep learning. We first train a normalizing flow on a sample of observed six-dimensional phase-space coordinates of stars, obtaining a smooth, differentiable approximation of the distribution function. Using the collisionless Boltzmann equation, we then find the gravitational potential—represented by a feed-forward neural network—that renders this distribution function stationary. This method, which we term “Deep Potential,” is more flexible than previous parametric methods, which fit restricted classes of analytic models of the distribution function and potential to the data. We demonstrate Deep Potential on mock data sets and demonstrate its robustness under various nonideal conditions. Deep Potential is a promising approach to mapping the density of the Milky Way and other stellar systems, using rich data sets of stellar positions and kinematics now being provided by Gaia and ground-based spectroscopic surveys.
CO Emission, Molecular Gas, and Metallicity in Main-sequence Star-forming Galaxies at z ∼ 2.3*
Authors: Sanders Ryan L. , Shapley Alice E. , Jones Tucker , Shivaei Irene , Popping Gergö , Reddy Naveen A. , Davé Romeel , Price Sedona H. , Mobasher Bahram , Kriek Mariska , Coil Alison L. , Siana Brian
Published: January 2023

We present observations of CO(3−2) in 13 main-sequence z = 2.0–2.5 star-forming galaxies at

log
(

M

*

/

M

⊙

)
=
10.2
–
10.6

that span a wide range in metallicity (O/H) based on rest-optical spectroscopy. We find that

L

CO
(
3
−
2
)

′

/SFR decreases with decreasing metallicity, implying that the CO luminosity per unit gas mass is lower in low-metallicity galaxies at z ∼ 2. We constrain the CO-to-H2 conversion factor (α
CO) and find that α
CO inversely correlates with metallicity at z ∼ 2. We derive molecular gas masses (M
mol) and characterize the relations among M
*, SFR, M
mol, and metallicity. At z ∼ 2, M
mol increases and the molecular gas fraction (M
mol/M
*) decreases with increasing M
*, with a significant secondary dependence on SFR. Galaxies at z ∼ 2 lie on a near-linear molecular KS law that is well-described by a constant depletion time of 700 Myr. We find that the scatter about the mean SFR−M
*, O/H−M
*, and M
mol−M
* relations is correlated such that, at fixed M
*, z ∼ 2 galaxies with larger M
mol have higher SFR and lower O/H. We thus confirm the existence of a fundamental metallicity relation at z ∼ 2, where O/H is inversely correlated with both SFR and M
mol at fixed M
*. These results suggest that the scatter of the z ∼ 2 star-forming main sequence, mass–metallicity relation, and M
mol–M
* relation are primarily driven by stochastic variations in gas inflow rates. We place constraints on the mass loading of galactic outflows and perform a metal budget analysis, finding that massive z ∼ 2 star-forming galaxies retain only 30% of metals produced, implying that a large mass of metals resides in the circumgalactic medium.
Midventricular variant of Takotsubo syndrome in a patient with threatening status epilepticus from simple motor seizures
Authors: Kunev B. , Vasilev V. , Vladimirov G. , Karabinov V.
Published: January 2023

We present a clinical case of a 70-year-old woman who was urgently admitted to the Department of Neurology with threatening status epilepticus from simple motor seizures in the right half of the face and right hand. Computed tomography of the head visualized a calcified extra axial round formation in the left posterofrontal, possibly a meningioma. On admission and during the symptomatic attacks, dynamic ECG changes were recorded with negative T waves precordially, as well as a dynamic increase in serum troponin. Echocardiography revealed hypokinesia involving the middle segments of the left ventricle. Coronary angiography was performed with no evidence of coronary disease. From the ventriculography hypokinesia of middle segments was found and measured EF 47%. Complex therapy with valproate, dexamethasone, mannitol and clonazepam, levetiracetam, acetizal, a statin and a beta-blocker was initiated. After controlling the epileptic seizures and diagnostic work-up of the cardiovascular status, the patient was referred for neurosurgical treatment of the tumor formation.
Basal pseudoaneurysm of the lateral wall of the left ventricle – case report
Authors: Grigorov R. , Panayotov P. , Panayotova D, , Borisov I.
Published: January 2023

Left ventricle pseudoaneurysm is a rare but serious complication, most often secondary to myocardial infarction. It is associated with high mortality due to a significant risk of rupture. We present a case of a patient with a large basal pseudoaneurysm of the lateral wall of the left ventricle. The pseudoaneurysm is discovered from a chest radiography performed after a COVID-19 infection. The diagnosis is confirmed by echocardiography and ventriculography. The patient underwent surgical treatment by endoventricular patch plasty – Dor procedure. The patient in our case lacked the typical symptoms and ECG features, furthermore he had no history of myocardial infarction, cardiac surgery, trauma or endocarditis.
Appetite–regulating hormones in rats with fructose-induced metabolic changes
Authors: Hadzhibozheva Petya , Pashova-Stoyanova Liliya , Tsokeva Zhivka , Ganeva Maria , Nancheva Krasimira , Ilieva Galina , Nanchev Velcho , Tolekova Anna , Georgiev Tsvetelin
Published: January 2023

Objectives: The aim of this research is to examine the effects of fructose-drinking on the plasma levels of appetite-regulating hormones insulin, leptin and ghrelin in male and female rats.

Methods: Mature Wistar rats were divided as follows: two control groups - male (CM) and female (CF); two fructose-drinking groups - male (FDM) and female (FDF), received 15% fructose solution. The experiment lasted 11 weeks. At the end, insulin, leptin and ghrelin levels as well as lipid and glucose profile were assessed.

Results: Plasma concentrations of the examined hormones were elevated in fructose-drinking groups. However, in the FDM group only the leptin levels were significantly increased compared to the control. In the FDF group, all three appetite-regulating hormones showed the highest concentrations in comparison to the other groups.

Conclusion: Sex hormones may affect the appetite-regulation signals and could be a factor contributing to degree of metabolic changes caused by long-term fructose overconsumption.
Le Changement Emergent : un nouveau modèle d’Analyse Transactionnelle pour un dialogue efficace au travail
Authors: Laugeri Madeleine
Published: January 2023

Cet article présente un modèle intitulé Changement Émergent, qui permet d’optimiser l’économie des Signes de Reconnaissance dans les environnements de travail et de formation. Il offre une vision globale de la dynamique des systèmes humains pour créer des conditions de communication et d’apprentissage optimales au sein d’un groupe en vue d’améliorer sa performance. Le modèle propose des contrats à trois niveaux : le Contrat de Vision, le Contrat de Mission et le Contrat de Coopération. Chacun fait référence à un type de dialogue spécifique à travers les trois frontières organisationnelles d’un groupe complexe : externe, majeure interne et mineure. Ces contrats permettent de positionner les membres du groupe et le leadership dans un partenariat OK/OK. Dans un contexte où les managers s’efforcent de développer la performance organisationnelle et où les employés cherchent à donner du sens à leur travail, le modèle de Changement Émergent favorise les relations humaines pour améliorer la performance collective par le biais d’une meilleure collaboration, d’une autonomie accrue et d’un réel confort émotionnel. 2
Le nécessaire travail de refondation de l’appareil de soins psychiatriques public et privé
Authors: Lopez Alain
Published: January 2023

Le secteur. Entre la fétichisation d’un modèle immuable dont la critique serait sacrilège et la critique globale d’une organisation qui aurait fait son temps, reste la place pour reconstruire un système cohérent qui, à la fois garde les valeurs fondamentales d’une politique qui a fait ses preuves et prenne en compte les évolutions de la société, en particulier le développement important de l’offre privée libérale. Le dispositif actuel montre ses limites dans le contexte actuel et il y aurait lieu de rassembler tous les acteurs, leurs critiques et leurs propositions afin d’effectuer un diagnostic de la situation. Le critère fondamental de cette refondation devra alors être la qualité des soins, la même pour tous et en tous les lieux. C’était la volonté des pères du secteur. Il faut la garder tout en adaptant les pratiques d’aujourd’hui.
Des « discours » aux « chemins d’accès aux droits »
Authors: Vatron-Steiner Béatrice , Bickel Jean-François , Rossier Amélie
Published: January 2023

Cet article analyse le processus de mise en organisation et en technologie du projet politique de dématérialisation de l’administration à l’échelon d’un territoire localisé : le canton de Fribourg en Suisse. Il vise à ouvrir la boîte noire du dispositif cyberadministratif fribourgeois et à décrire le monde qui le conçoit et le produit, son instrumentation technique et son inscription dans le dispositif national, en focalisant les deux champs du chômage et de l’insertion professionnelle d’un côté, de l’aide et de l’insertion sociale de l’autre. Cet article met ainsi en évidence une série de processus de nature à compliquer ou à faire obstacle à l’accès aux droits et aux prestations par le numérique et à invisibiliser ou à minorer ce problème. Ce faisant, il rend compte du décalage important qui prévaut entre l’accès aux droits censé être favorisé par le dispositif et vanté par les discours d’accompagnement, d’un côté, et la complexité effective de l’instrumentation cyberadministrative et des enjeux de cette complexité pour les usagers, de l’autre.
De la mutualisation du service public à la délégation
Authors: Devez Chloé
Published: January 2023

Dans un contexte de fermeture d’institutions et de dématérialisation intensive des démarches administratives, l’État a amorcé en 2019 un processus de réengagement dans les territoires ruraux à travers le dispositif France services, label et guichet de la mutualisation du service public. À partir d’une enquête par observations et entretiens conduite à l’automne 2021, cet article étudie l’un de ces guichets porté en partenariat par une collectivité territoriale rurale et la Mutualité sociale agricole (MSA). En s’intéressant à leurs pratiques quotidiennes, il restitue le point de vue des agents d’accueil MSA pris entre la promesse de guichet unique de l’État dématérialisé et les conditions concrètes de l’accompagnement aux démarches en ligne, souvent éloignées des compétences techniques qui constituent le cœur de leur métier à la MSA. L’expérience d’un décalage, articulée aux trajectoires des agents, donne lieu à des rapports plus ou moins contraints au dispositif et à des manières variées de définir leur rôle auprès des usagers. Si certains les accompagnent tout en rejetant leur appartenance à France services, le malaise des agents les plus réfractaires les pousse à chercher à quitter leur poste. L’article met ainsi en évidence les dynamiques d’une déqualification professionnelle, voire d’un déclassement social.
Numérisation des démarches administratives
Authors: Borelle Céline , Pharabod Anne-Sylvie , Peugeot Valérie
Published: January 2023

Depuis les débuts de l’internet grand public, la question de l’accompagnement des usages numériques cristallise les débats entre des acteurs pluriels. Ancrés dans plusieurs secteurs d’intervention (travail social, éducation populaire, etc.), des professionnels en proposent différentes déclinaisons pratiques, sans que l’action publique ne coordonne l’ensemble. Avec l’accélération de la dématérialisation administrative, le fait que différents groupes professionnels soient impliqués dans une même tâche d’accompagnement aux démarches en ligne devient tangible. Lors du premier confinement lié à la pandémie de Covid-19 (printemps 2020), ils se mobilisent pour mettre en place le centre d’appels Solidarité Numérique. En s’appuyant sur une recherche articulant approche sociohistorique, entretiens auprès de professionnels engagés dans ce dispositif et observations de leurs échanges sur un fil de conversation numérique ( chat ), cet article montre la structuration croisée de deux groupes professionnels particulièrement impliqués : la médiation numérique et la médiation administrative. La médiation numérique, en quête de reconnaissance, voit sa stabilisation largement menacée, tandis que la médiation administrative, en construction, se trouve plutôt renforcée.
Solving singular equations of length eight over torsion-free groups
Authors: Bibi Mairaj , Ali Sajid , Arif Muhammad Shoaib , Abodayeh Kamaleldin
Published: January 2023

It was demonstrated by Bibi and Edjvet in [1] that any equation with a length of at most seven over torsion-free group can be solvable. This corroborates Levin's [2] assertion that any equation over a torsion-free group is solvable. It is demonstrated in this article that a singular equation of length eight over torsion-free groups is solvable.
A generalized iterative scheme with computational results concerning the systems of linear equations
Authors: Nonlaopon Kamsing , Shah Farooq Ahmed , Ahmed Khaleel , Farid Ghulam
Published: January 2023

In this article, a new generalized iterative technique is presented for finding the approximate solution of a system of linear equations $ Ax = b $. The efficiency of iterative technique is analyzed by implementing it on some examples, and then comparing with existing methods. A parameter introduced in the method plays very vital role for a better and rapid solution. Convergence analysis is also examined. Findings of this paper may stimulate further research in this area.
Lewy-Stampacchia inequality for noncoercive parabolic obstacle problems
Authors: Farroni Fernando , Moscariello Gioconda , Zecca Gabriella
Published: January 2023

We investigate the obstacle problem for a class of nonlinear and noncoercive parabolic variational inequalities whose model is a Leray–Lions type operator having singularities in the coefficients of the lower order terms. We prove the existence of a solution to the obstacle problem satisfying a Lewy-Stampacchia type inequality.
Dos epitafios al Príncipe Carlos: texto y estudio
Authors: Pérez-Abadín Barro Soledad
Published: January 2023

Este artículo considera dos epitafios escritos al príncipe Carlos, primogénito y heredero de Felipe II, fallecido prematuramente en 1568. Tras establecer su marco histórico, se evalúan los testimonios textuales de cada epitafio, «Aquí yacen de Carlos los despojos» y «Nací de agüelo y padre sin segundo», con el propósito de fijar sendos textos proporcionando sus correspondientes variantes, a partir de textos que circularon en cancioneiros hispano-portugueses. Dos versiones adaptan el segundo a la figura de D. Sebastião, el monarca portugués fallecido en Alcazarquivir. Sigue un estudio literario, que interpreta y analiza la retórica epidíctica de los géneros fúnebres, combinada con las alusiones a las enigmáticas circunstancias de la muerte del príncipe. La brevedad epigramática de ambos epitafios contrasta con la amplificación del segundo, que añade dos octavas que aportan un sentido religioso ausente de la versión genuina.
La censura ante los personajes históricos. El caso de Luis Vélez de Guevara
Authors: González Martínez Javier J.
Published: January 2023

Se analiza la caracterización de personajes que tienen un referente fuera de la ficción en el teatro español del siglo XVII y la percepción de este fenómeno por parte de los órganos censores. Algunas personas históricas fueron dramatizadas de tal manera que alcanzaron la tipificación que permitía al público reconocerlas, por ejemplo, por su forma de hablar. En ocasiones la censura se fijó en algunos de esos rasgos sin considerar las consecuencias que tenía para la identificación y función dramática del personaje. Se atiende a la dramatización y al juicio censor sobre los personajes de la Biblia, de la devoción, de la realeza, de la nobleza y del pueblo, entre otros. En concreto, se centra el campo de estudio en la obra dramática de Luis Vélez de Guevara que fue objeto de censura.
Algunas nociones platónicas de La desheredada, de Pérez Galdós
Authors: Serés Guillermo
Published: January 2023

Galdós parte de algunos tópicos platónicos que un lector medianamente culto conoce: la polis o república, el demiurgo, la caverna, el mundo de las ideas y la anagnórisis, la inmortalidad del alma y la anamnesis, las cuatro manías, las tres almas y el auriga, el espejo, el cuerpo como cárcel del alma, entre otros. Los trae Galdós, banalizados o parodiados aquí en una protagonista de hipertrofiada, quijotesca, imaginación, obsesionada por su origen noble, para contrastar conceptualmente su actitud con el determinismo social y moral.
El «Ante-Texto Preparatorio» de El Ruedo Ibérico, la última obra de Ramón del Valle-Inclán
Authors: Abalo Gómez Adriana
Published: January 2023

Las páginas que siguen se proponen recuperar y analizar el ‘ante-texto preparatorio’ de El Ruedo Ibérico, el último e incompleto ciclo histórico de Ramón del Valle-Inclán, a partir de los manuscritos inéditos que se conservan en el Legado Valle-Inclán Alsina depositado en la Universidade de Santiago de Compostela desde 2008. Se trata de rescatar y presentar los testimonios más tempranos de la génesis del proyecto, esto es, la ‘fase pre-redaccional’ de documentación y programación de la obra. A partir del estudio de estos materiales se podrá ampliar el conocimiento que hasta el momento se tiene del modus operandi del escritor al frente de su último ciclo novelesco.