bluuebunny/crossref_metadata_2025 huggingface dataset:
Delivering a Birth Safely – Case Reports of Perineal Infection Prevention among Pregnant Women Living Around Ex-landfills
Authors: Herliyana Lisa , Purnamayanti Anita , Prasetyadi Fransiscus Octavianus Hari
Published: September 2022

Background: Pregnant women living around ex-landfills have a higher risk of infection due to slum milieu, poor nutritional status, and fetal head pressure on the perineum during labor which can cause it to tear. Objective: This research aimed to emphasize the importance of limiting prophylaxis antibiotics for the 1st and 2nd degrees of perineal tears due to their negligible risk of infection. Case presentations: This is a report of two primigravid women aged 19 years old (cases 1 and 2) and multiparous women aged 29 and 30 yo (cases 3 and 4) who managed to give birth safely in Puskesmas (Indonesian primary healthcare facilities), despite having low blood pressure and non-adherence to antenatal care. All of them suffered from 2nd degree of perineal tears and received analgesics, iron, vitamin B complex, and vitamin A tablets. The subjects attended puerperium care on days, 14, and 42 postpartum at Puskesmas. Discussion: In March 2020, Puskesmas' healthcare team performed a new 1st and 2nd-degree perineal tears prevention without antibiotics following normal vaginal birth. Standard care consists of personal hygiene, perineal wound care, and education on the importance of nutritious food and adherence to maternal supplementation. All subjects presented with complete perineal wound healing without infection at day-42 postpartum. Conclusion: It can be concluded that 2nd-degree perineal tears infection following normal vaginal birth could be prevented without antibiotics. It is strongly suggested to control the maternal nutritional states, potentially interfering with the maternal ability to heal the perineal wound.
Analysis of Factors Affecting the Stress Level and Self-Medication Practice in Primary Dysmenorrhea in Adolescents during COVID-19 Pandemic
Authors: Kusumawardani Nurul , Darmawan Endang , Hatisuci Jasmine Amira , Ramadhanti Iftita Nuratika , Oktavia Rahma Sakti , Fauziah Very Ainun , Styawaty Trisna , Nugraeni Ratih
Published: September 2022

Background: During the novel coronavirus (COVID-19) pandemic, reports of adolescent pain and worsening of the menstrual cycle increased with increasing stress levels. Objective: Analysis of determinant factors that influence the ability to self-medication for menstrual pain, including socio-demography and medical history, to determine the effect of stress levels on the menstrual cycle of adolescent women during the COVID-19 pandemic. Methods: The method is descriptive observational, through a cross-sectional study on adolescent females in Indonesia was conducted in October-November 2020. Data collection through a simple survey method using a self-medication online questionnaire survey and the Kessler psychological distress scale (KPDS) by consecutive sampling technique. About 258 women agreed to participate in the study. The results are presented in the form of frequency and percentage (%), and the determinants are analyzed using χ2-test and binary logistic regression models. Result: About 78.3% of respondents had stress during the pandemic COVID-19 with primary dysmenorrhea (70.2%), and 58.9% of respondents had low self-medication for managing primary dysmenorrhea. The predictors of self-medication understanding were the mother's education level and history of menstrual pain (p-value = 0.045; 0.005). In addition, respondents' stress levels during the COVID-19 pandemic affected their menstrual cycles (OR=5.110; 95% CI: 1.767–14.782, p-value=0.003). Conclusion: The role of pharmacists in the community and mothers as pioneers of family health is vital in increasing the understanding and implementation of the practice of self-medication for primary dysmenorrhea. This role needs to manage the stress of adolescent women. It can affect the reduction in the menstrual cycle, especially during the COVID-19 pandemic.
Direct Medical Cost Analysis of Dengue Patients: A Retrospective Study
Authors: Faridah Imaniar Noor , Syahfitri Tuty Lia , Nugroho Reza Aditya , Supadmi Woro , Dania Haafizah , Perwitasari Dyah Aryani
Published: September 2022

Background: Dengue infection is an arboviral disease that could lead to severe illness. The incidence of severe dengue will impact patients' financial aspects. As an important clinical feature, platelet level on admission day might contribute to the direct medical cost. Objective: This study aimed to examine the direct medical cost among patients with dengue fever (DF) or dengue hemorrhagic fever (DHF) in Yogyakarta, Indonesia. Methods: This study was a retrospective study conducted in two private hospitals in Yogyakarta, Indonesia. Participants included in this study were hospitalized patients diagnosed with DF or DHF. Data were extracted from medical records and finance departments in each hospital. Results: Among 174 dengue patients included in this study, the mean age of DHF patients (18.44 + 14.87) was lower than in DF patients (23.47 + 18.99). Patients with DHF (4.88 days) also showed prolonged hospitalization compared with DF (4.18 days) patients. In terms of medical cost, DHF patients need a higher dengue treatment cost, which is about 329.74 USD compared to 220.68 USD for DF patients in hospital 2. Mainly related to room charges, which increased by 9.48% in hospital 1 and 66.28% in hospital 2 compared with DF patients. Furthermore, DHF patients with thrombocytopenia on the first day of admission present higher medical costs in terms of laboratory fees (36.08%), medicine (18.17%), and total medical costs (9.84%). Conclusion: Severe form of dengue will contribute to economic burden. Therefore, prevention and adequate treatment are essential to reduce the prognosis of severe dengue and higher medical cost.
A colaboração dos notários e registradores nos crimes financeiros
Authors: Passos de Freitas Vladimir , Costa Junior Arlei
Published: September 2022

O objetivo do artigo é demonstrar a importância da atuação dos notários e dos registradores na colaboração junto ao Poder Público, seja na fiscalização tributária seja no combate aos crimes financeiros, e propor diretivas para sua efetividade. Utilizou-se o método hipotético-dedutivo, para análise da doutrina e da legislação. Por meio de estudo da evolução histórica dos tratados sobre prevenção e repressão aos crimes de lavagem de capitais, compreendeu-se a necessidade de um esforço harmônico para adequar as legislações dos países a esse intento. Para isso, criaram-se órgãos de inteligência – como o GAFI – para desenvolver estudos, manuais e recomendações a serem incorporadas nas legislações dos Estados. Dentre essas recomendações, a inclusão dos notários e registradores como agentes colaboradores do órgão nacional de combate aos crimes financeiros, que no Brasil é o COAF, por meio do envio de  informações e alertas sobre atividades suspeitas, o que também contribui no combate à corrupção.
Reinforcement learning-based control for offshore crane load-landing operations
Authors: Maamoun Khaled Said Ahmed , Karimi Hamid Reza
Published: September 2022

Offshore crane operations are frequently carried out under adverse weather conditions. While offshore cranes attempt to finish the load-landing or lifting operation, the impact between the loads and the vessels is critical, as it can cause serious injuries and extensive damage. Multiple offshore crane operations, including load-landing operations, have used reinforcement learning (RL) to control their activities. In this paper, the Q-learning algorithm is used to develop optimal control sequences for the offshore crane’s actuators to minimize the impact velocity between the crane’s load and the moving vessel. To expand the RL environment, a mathematical model is constructed for the dynamical analysis utilizing the Denavit–Hartenberg (DH) technique and the Lagrange approach. The Double Q-learning algorithm is used to locate the bias that is common in Q-learning algorithms. The average return feature is studied to assess the performance of the Q-learning algorithm. Furthermore, the trained control sequence was tested on a separate sample of episodes, and the hypothesis that, unlike supervised learning, reinforcement learning cannot have a global optimal control sequence but only a local one, was confirmed in this application domain.
No-Show in Medical Appointments with Machine Learning Techniques – A Systematic Literature Review
Authors: Salazar Luiz Henrique , Parreira Wemerson Delcio , Fernandes Anita M. R. , Leithardt Valderi Reis Quietinho
Published: September 2022

No-show appointments in healthcare is a problem faced by medical centers around the world, and understand the factors associated with the no-show behavior is essential. In the last decades, artificial intelligence took place in the medical field and machine learning algorithms can work as a efficient tool to understand the patients behavior and to achieve better medical appointment allocation in scheduling systems. In this work, we provide a systematic literature review (SLR) of machine learning techniques applied to no-show appointments aiming at establishing the current state-of-the-art. Based on a SLR following the Kitchenham methodology, 24 articles were found and analyzed, in which the characteristics of the database, algorithms and performance metrics of each studies were synthesized. Results regarding which factors have a higher impact on missed appointment rates were analyzed too. The results indicate that the most appropriate algorithms for building the models are decision tree algorithms. Furthermore, the most significant determinants of no-show were related to the patients age, whether the patient missed a previous appointment, and the distance between the appointment and the patients scheduling.
Construction and Analysis of an Enzyme‐constrained Metabolic Model of Corynebacterium glutamicum
Authors: Niu Jinhui , Mao Zhitao , Mao Yufeng , Wu Ke , Shi Zhenkun , Yuan Qianqian , Cai Jingyi , Ma Hongwu
Published: September 2022

Genome-scale metabolic model (GEM) is a powerful tool for interpreting and predicting cellular phenotypes under various environmental and genetic perturbations. However, GEM only consid-ers stoichiometric constraints, and the simulated growth and product yield values will show a monotonic linear increase with increasing substrate uptake rate, which deviates from the experi-mentally measured values. Recently, the integration of enzymatic constraints into stoichiometry-based GEMs was proven to be effective in making novel discoveries and predicting new engineer-ing targets. Here we present the first genome-scale enzyme-constrained model (eciCW773) for Corynebacterium glutamicum reconstructed by integrating enzyme kinetic data from various sources using ECMpy workflow based on the high-quality GEM of C. glutamicum (obtained by modifying the iCW773 model). The enzyme-constrained model improved the prediction of pheno-types and simulated overflow metabolism, while also recapitulating the trade-off between biomass yield and enzyme usage efficiency. Finally, we used eciCW773 to identify several gene modifica-tion targets for L-lysine production, most of which agree with previously reported genes. This study shows that incorporating enzyme kinetic information into the GEM enhances the cellular phenotypes prediction of C. glutamicum, which can help identify key enzymes and thus provide reliable guidance for metabolic engineering.
Application of Composite Variable Structure PI in the IPMSM Speed Sensorless Control System
Authors: Feng Weidong , Bai Jing , Zhang Zhiqiang , Zhang Jing
Published: September 2022

In the speed control system of Interior Permanent Magnet Synchronous Motor (IPMSM) without a speed sensor, the speed under the traditional PI control suffers from poor tracking performance and step response overshoot. This paper proposes a Compound Variable Structure PI (CVSPI) controller to improve the system control performance. It can choose whether to include an integral term according to the size of the system deviation to speed up the response. It also introduces a Model Reference Adaptive System (MRAS) speed observer in the controller to estimate the speed and adaptively adjust the size of the anti-integration saturation gain to improve the dynamic response following performance and immunity of the system. A feed-forward link is added for a given input differential to achieve an accurate answer to time-varying inputs. As the linear compensation matrix of the conventional MRAS is a unit matrix, the speed can only be accurately observed in a specific speed range. In this paper, a new linear compensation matrix is designed, and a new speed adaptive law is derived, allowing the improved MRAS to measure speed over a wide range accurately. Simulation results validate the excellent control performance of the CVSPI and the accuracy of the enhanced MRAS over a wide speed range.
Size Distribution of Inactivated Tick-borne Encephalitis Virus Particles Revealed by a Comprehensive Physical-chemical Approach
Authors: Moiseenko Andrey V. , Bagrov Dmitry V. , Vorovich Mikhail F. , Uvarova Viktoria I. , Veselov Maxim M. , Kashchenko Anastasia V. , Ivanova Alla L. , Osolodkin Dmitry I. , Egorov Alexey M. , Ishmukhametov Aydar A. , Shaitan Konstantin V. , Sokolova Olga S.
Published: September 2022

Tick-borne encephalitis virus (TBEV) is a RNA-containing enveloped virus, a member of the Flaviviridae family. Here we describe a detailed analysis of the size and structure of inactivated TBEV (the Sofyin-Chumakov TBEV strain, used in vaccines). Four analytical methods were used to analyze individual TBEV particles—negative staining TEM, cryo-EM, AFM, and NTA. All methods confirmed that the particles were monodisperse, and their mean size was ~50 nm. Cryo-EM data were used to obtain a 3D electron density model of the virus with clearly distinguishable E-proteins. STEM-EELS analysis detected phosphorous in the particles, which was interpreted as the RNA signal. Altogether, the described analytical procedures can be valuable for the further analysis of vaccine inactivated virus samples.
Mask-Aware Semi-Supervised Object Detection in Floor Plans
Authors: Shehzadi Tahira , Hashmi Khurram Azeem , Pagani Alain , Liwicki Marcus , Stricker Didier , Afzal Muhammad Zeshan
Published: September 2022

Research has been growing on object detection using semi-supervised methods in past few years. We examine the intersection of these two areas for floor-plan objects to promote the research objective of detecting more accurate objects with less labelled data. The floor-plan objects include different furniture items with multiple types of the same class, and this high inter-class similarity impacts the performance of prior methods. In this paper, we present Mask R-CNN based semi-supervised approach that provides pixel-to-pixel alignment to generate individual annotation masks for each class to mine the inter-class similarity. The semi-supervised approach has a student-teacher network that pulls information from the teacher network and feeds it to the student network. The teacher network uses unlabeled data to form pseudo-boxes, and the student network uses both unlabeled data with the pseudo boxes and labelled data as ground truth for training. It learns representations of furniture items by combining labelled and unlabeled data. On the Mask R-CNN detector with ResNet-101 backbone network, the proposed approach achieves mAP of 98.8%, 99.7%, and 99.8% with only 1%, 5% and 10% labelled data, respectively. Our experiment affirms the efficiency of the proposed approach as it outperforms the fully supervised counterpart using only 10% of the labels.
Association of Self-Reported Depression Symptoms with Physical Activity Levels in Czechia
Authors: Maranhao Neto Geraldo A. , Lattari Eduardo , Oliveira Bruno Ribeiro Ramalho , Polcrova Anna , Infante-Garcia Maria , Kunzova Sarka , Stokin Gorazd B , Gonzalez-Rivas Juan P.
Published: September 2022

Worldwide, depressive disorder is one of the leading determinants of disability-adjusted life years. Although the benefits associated with physical activity (PA), there is a lack of information related to depression, especially in countries like Czechia, where modern approaches to mental health care only recently emerged. The PA levels were associated with aspects of depression such as clinician-diagnosed history; different severities; continuous depression scores; and specific symptoms that characterize the depression. The multivariable-adjusted Poisson regression models were carried out on 2123 participants (45.3% men, median 48 years). Compared to subjects with insufficient PA, the moderate and high PA levels were inversely associated with clinician-diagnosed depression history (respectively, prevalence rate [PR]= 0.84; 95% CI 0.66-0.82 and PR=0.50; 95% CI 0.36-0.67); and with continuous depression scores (PR=0.85; 95% CI 0.75-0.97; and PR=0.79; 95%CI 0.70-0.90).; but only high PA showed association with depression categories (PR=0.75; 95%CI 0.60-0.95). Depressed mood and worthlessness were the symptoms associated with moderate and high PA. Tiredness, change in appetite, and problems with concentration only with high PA. Although only high PA was sufficient for people intending changes among depression categories, the moderate PA may be enough for slight changes in depressive symptoms, and a good strategy when starting.
Evaluating the Increasing Trend of Strength and Severe Wind Hazard of Philippine Typhoons Using the Holland-B parameter and Regional Cyclonic Wind Field Modeling
Authors: Agar Joshua Cunanan
Published: September 2022

For the Philippines, a country exposed to multiple natural hazards like severe wind, sustainable development includes resiliency. Severe wind hazard is brought by tropical cyclones in the Western Pacific, known as typhoons, that frequent the Philippines. Therefore, adequately evaluating the wind hazard and its impact is crucial for sustainable building design. Acknowledging the impacts of climate change on said hazards would require adaptation to its consequences which necessitate a deeper understanding on the changing behavior of typhoons in recent years. For this study, detailed wind information from the Japan Meteorological Agency from 1977-2021, the Holland-B parameter, and the radius of maximum wind speed for each typhoon, are determined for simulation of the regional cyclonic wind field. The analysis of the Holland-B parameters, which represent the steepness of the pressure gradient and tropical cyclone convection, suggest that the Holland-B parameters have been increasing since 2011. The regional wind fields caused by the typhoons also suggest an increasing trend in severe wind hazard. Seasonality for the location of severe wind hazard is also observed, with the Southern Philippines experiencing an increase (decrease) during the Northeast (Southwest) Monsoon season, and the Northern Philippines experiencing an increase (decrease) during the Southwest (Northeast) Monsoon season.
Professional Obstacles to Anaesthesiology Practice in Punjab, Pakistan: Qualitative Study of Consultant Anaesthesiologists’ Perspectives
Authors: Shahbaz Sumbal , Zakar Rubeena , Howard Natasha , Fischer Florian
Published: September 2022

Global anaesthesia workforce limitations contribute to emigration of skilled anaesthesiologists from lower- to higher-income countries, jeopardizing workforce balance and patient outcomes in Pakistan. This study aims to explore challenges experienced by anaesthesiologists in Punjab, Pakistan’s most populous province, and necessary changes to encourage their retention. We conducted a qualitative study to examine perspectives of anaesthesiologists who chose to serve in Pakistan. We drew data from semi-structured interviews conducted with 25 purposively-sampled consultant anaesthesiologists. We analysed data thematically and distinguished the practice hurdles faced by anaesthesiologists in public and private hospitals of Punjab. The main reasons to work abroad could be broadly categorized under two inductive themes, i.e. practice hurdles in public and private sector. Both had distinct issues which compromised the number and quality of anaesthesia workforce in the country. The key outcomes were workplace security, promotion/incentive issues and gender inequalities in the government sector. The private sector had improper salaries and facilities, anaesthesiologist’s dependency on surgeons for getting work and lack of out-of-theatre practice which minimise the scope and earnings of anaesthesiologist within the country. There is a need to overcome surgeon dependency and hospital manipulation by fixing salary percentages for each surgical case and encouraging direct patient-anaesthesiologist relationships.
Multiple Sums Involving the Terms of a General Second Order Sequence of Numbers
Authors: Adegoke Kunle
Published: September 2022

We evaluate the nested sum $\sum_{a_{n - 1} = c}^{a_n } {\sum_{a_{n - 2} = c}^{a_{n - 1} } { \cdots \sum_{a_0 = c}^{a_1 } {x^{a_0 } } } }$ where $a_n$ and $c$ are any integers and $x$ is a real or complex variable. Consequently, we evaluate multiple sums involving the terms of a general second order sequence, the Horadam sequence (Wj (a, b; p, q)), defined for all non-negative integers j by the recurrence relation W0 = a, W1 = b; Wj = pWj−1 − qWj−2 (j≥2); where a, b, p and q are arbitrary complex numbers, with p ≠ 0, q ≠ 0.
Potential Utilization of Bacterial Consortium of Symbionts Marine Sponges in Removing Pollutants Global Trends: A Review
Authors: Marzuki Ismail , Rosmiati Rosmiati , Mustafa Akhmad , Sahabuddin Sahabuddin , Tarunamulia Tarunamulia , Hendrajat Erfan Andi , Sahrijanna Andi , Muslimin Muslimin , Ratnawati Erna , Kamariah Kamariah , Nisaa Khairun , Herlambang Susila , Gunawan Sri , Santi Idum Satia , Isnawan Bambang Heri , Kaseng Ernawati Syahruddin , Septiningsih Early , Asaf Ruzkiah , Athirah Admi , Basri Basri
Published: September 2022

Toxic materials in waste generally contain several components of global trending pollutant categories, especially PAHs and heavy metals. Bioremediation technology for managing waste utilizing microorganisms (bacteria) has not been fully capable of breaking down these toxic materials simple and environmentally friendly chemical products. This study examines the potential application of a marine sponge symbiont consortium with high performance and efficiency in removing PAHs and heavy metal contaminants. The method is carried out through a review of some related research articles by the author and published by other re-searchers. The study results concluded that bioremediation technology development GTP, can be carried out to improve remediation efficiency. Several types of marine sponge symbiont bacteria, hydrocarbonoclastic (R-1), metalloclastic (R-2), and metallohydro-carbonoclastic (R-3), have the potential to be applied to improve the removal performance of waste. Bacterial screening be done to find and categorize R-1 bacteria, R-2; R-3 to remediate GTP. Develop of R-1 bacteria, R-2; R-3 forms of the mobile formulation are needed in the future. A crystalline consortium of bacteria preparations is needed so that they can be quickly mobilized to locations exposed to GTP. Marine sponge symbiont bacteria be traced mainly to marine sponges whose body surface is covered with mucus.
Bikeshare Interactions with Other Transportation Modes During the COVID Pandemic
Authors: Du Jianhe , Rakha Hesham
Published: September 2022

In this paper, bikeshare data in Chicago on weather-friendly days in 2019 and 2020 were analyzed to investigate the variation in bikeshare travel before and during the pandemic. Our results show that bikeshare trips during the pandemic were much longer than prior to the pandemic. The increased rate of bikeshare usage was unbalanced spatially and varied significantly for different user types. Specifically, bikeshare was used significantly more by casual users than by subscribers, and the increase occurred much more in the outskirts of the city. The increase in bikeshare travel was associated with a reduction in travel by ride-hailing and public transit, especially in the urban periphery. The correlation of bikeshare use with the bus system was much less significant than with the rail system. Bike lanes/facilities had a mixed effect on bikeshare travel. Weekend bike trips increased in areas where there was no bike lane. Weekday trips, on the contrary, increased in the vicinity of bike greenways.
Computational repurposing of FDA-approved drugs against specific mastitis-causing pathogens
Authors:   Department of Molecular Biology and Genetics, Faculty of Science, Muğla Sıtkı Koçman University, 48000 Muğla, Turkey, Ghafoor Naeem, Abdul , Sitkowska Beata ,   Department of Animal Biotechnology and Genetics, Faculty of Animal Breeding and Biology, Bydgoszcz University of Science and Technology, 85-084 Bydgoszcz, Poland
Published: September 2022

Mastitis is the single most expensive disease among cattle in the dairy industry and environmental pathogens such as Staphylococcus aureus and Staphylococcus warneri are among the most common culprits. Recent studies had shed the light on how such pathogens utilize lipolysis mechanisms to evade their host's immune response. In this study, computational drug discovery approaches were deployed to investigate human FDA-approved drugs that hold the potential of serving as inhibitors of lipase activity in the former 2 pathogens. Comprehensive computational analysis involving molecular docking, nanoscale molecular dynamics, and in silico binding free energy estimation has shown that Drospirenone, a unique progestogen with anti-mineralocorticoid properties commonly used in human birth control pills holds potential inhibitory activity against the lipase of Staphylococcus warneri as it had shown to form several stable hydrophobic interactions and hydrogen bonds with the formers lipWY lipase enzyme.
PHYSIOTHERAPY SUPPORT FOR POSTOPERATIVE TREATMENT OF CRANIAL CRUCIATE LIGAMENT RUPTURE IN DOGS: CASE REPORT
Authors:   Sebastian Slodki Veterinary Office SweetVet, Łęczycka 37, 85-737 Bydgoszcz, Poland, Słodki Sebastian , Bogucka Joanna ,   Department of Animal Physiology and Physiotherapy, Bydgoszcz University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland
Published: September 2022

Rupture of the cranial cruciate ligament (CCL) in the stifle is one of the most common causes of hind-limb lameness in middle-aged and old dogs. The treatment of choice involves surgical extra- or intra-capsular stabilization of the knee joint, or the increasingly preferred tibial osteotomy techniques. Postoperative rehabilitation of the affected limb is an equally important part of the treatment. The paper describes three cases of rupture of the cruciate ligament in dogs and the methods of physiotherapeutic treatment applied to them. The techniques of passive and active exercises were used along with massage and physical therapy, such as magnetotherapy, ultrasound, electrotherapy, and laser therapy. The development of the correct physiotherapeutic treatment plan, the selection of techniques, and the duration of therapy is crucial for its effectiveness. It has been shown that rehabilitation has a positive effect on the tissue healing process. It also shortens the time needed to restore full mobility of the affected limb, both during the non-complicated healing process and in the event of problematic cases.
Effective Porosity Seismic Inversion for Porous Media Saturated with an Ideal Fluid Using Simulated Annealing
Authors: Zhou Dongyong , Wen Xiaotao , He Xilei , He Zhenhua
Published: September 2022

Effective porosity inversion—a key technology for lithology prediction and fluid identification—plays a significant role in oil and gas exploration. Based on the analytical expression of the vertical reflection coefficient of fast P-wave at the interface of fluid-bearing porous media, a seismic record is described as a function of the porosity by combining the quantitative relationship among rock skeleton modulus, rock matrix modulus, and effective porosity. Considering the nonlinear relationship among them, the simulated annealing (SA) method is used to solve the nonlinear inverse problem, and effective porosity inversion is realized by utilizing the reflection coefficients, porosities, and interpretation results of well logs as prior constraints. A series of numerical analyses shows that reasonable constraints can make the inversion converge rapidly to the optimal solution, and the inversion results of porosity are effective and stable and have high resolution and strong noise immunity. The calculations of well data and sandstone reservoir data further verify the practicability of this method, and the solutions are in good agreement with well log porosity.
Reconstruction of the Diagenetic Environments of Tight Sandstone Reservoirs: A Case Study from the Tengger Formation in the Baiyinchagan Sag, Erlian Basin, Northern China
Authors: Li Shengyu , Tian Jingchun , Lin Xiaobing , Yin Nanxin , Luo Chao , Yang Dongdong
Published: September 2022

The Lower Cretaceous Tengger Formation located in the Baiyinchagan Sag of the Erlian Basin comprises mainly deeply buried tight sandstone. The identification of high-quality reservoirs in these thickly stacked and heterogeneous units requires a comprehensive understanding of the diagenetic environmental history of the rocks. This paper reports an integrated study involving thin-section petrography, scanning electron microscopy, X-ray diffraction, fluid-inclusion analysis, and vitrinite reflectance analysis of Tengger Formation sandstones with the aim of characterizing the diagenetic conditions of the reservoir rocks and providing guidance for future petroleum exploration. Observed mineral assemblages, the distribution of authigenic minerals, and the distribution and nature of pores suggest the presence of two types of diagenetic environment, acidic and alkaline, which have varied over time and vertically through the rock column. Acidic conditions are indicated by quartz overgrowths and dissolution of both feldspar and carbonate cement. In contrast, alkaline conditions are indicated by the precipitation of carbonate cement, feldspar overgrowths, quartz dissolution, and occurrences of authigenic illite and chlorite. Changes in pore fluid chemistry controlled the evolution of the diagenetic environment. The early diagenetic environment from 110 Ma to 107 Ma was syndepositional and thus controlled by the chemistry of water in depositional centers, which is interpreted to have been weakly alkaline. Significant burial that occurred at 107 Ma induced pulses of hydrothermal fluids and petroleum into the reservoir rocks, which caused a shift to an acidic diagenetic environment. From 103 Ma to 70 Ma, subsequent episodes of uplift and burial caused periodic alternation between acidic and alkaline diagenetic environments. Three distinct episodes of oil and gas charging interpreted from petrography and the homogenization temperatures of fluid inclusions played a critical role in the enhancement of porosity through time. From 70 Ma to the present, acidic diagenesis gradually weakened because of the consumption of organic acids during the process of interaction between rocks and fluids. This study demonstrates the importance of understanding the diagenetic history of reservoir rocks and provides the basis for improved reservoir characterization and optimized hydrocarbon exploration of the Tengger Formation.
Reform des Schengen-Systems
Authors: Hunziker Evamaria
Published: September 2022

Unbestrittenermassen sah sich der Schengen-Raum in den letzten Jahren mit verschiedenen grösseren Herausforderungen konfrontiert. Die Reformvorschläge, welche die Kommission am 14. Dezember 2021 präsentierte, bezwecken, den Schengen-Raum im Hinblick auf Bedrohungen der öffentlichen Sicherheit oder öffentlichen Ordnung widerstandsfähiger zu machen und die Wiedereinführung von Personenkontrollen an den Binnengrenzen zu vermindern. Untersucht man jedoch die konkret vorgeschlagenen Massnahmen, wird ersichtlich, dass diese - sozusagen nebenbei - verschiedentlich die Rechtsposition von Schutzsuchenden in der EU schwächen und gewisse bislang unionsrechtswidrige Praktiken der Mitgliedstaaten legalisieren würden.

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Il est indéniable que l'espace Schengen a été confronté à plusieurs défis majeurs au cours des dernières années. Les propositions de réforme présentées par la Commission le 14 décembre 2021 visent à rendre l'espace Schengen plus résistant aux menaces pour la sécurité publique ou l'ordre public et à réduire la réintroduction des contrôles des personnes aux frontières intérieures. Toutefois, si l'on examine les mesures concrètes proposées, il apparaît qu'elles affaibliraient - parallèlement - la position juridique des personnes en quête de protection dans l'UE et légaliseraient certaines pratiques des États membres jusqu'ici contraires au droit de l'Union.
Unequal, undiversified and underrepresented: women on the backburner in local decision making in South Africa’s local government
Authors: Joseph Juliet Eileen
Published: September 2022

The object of research: Firstly, the study highlights that women are still underrepresented in local government at the district level in leadership positions remaining on the backburner as decision makers. Secondly, the study examines the notion of patriarchy and male dominance that results in the marginalization and exclusion of women in municipal decision making. The study contributes to the current body of knowledge through identifying the challenges that prevent the equal representation of women as decision makers in local government.

Investigated problem: South Africa has been consistently praised for its advcancement in drafting a progressive constitution and legislation that provides for gender equality. Despite the progressive achievements, women remain underrepresented at the municipal level, as South Africa has not attained the target of 50/50 equal representation as far as women mayors, women are more likely to be underemployed in comparison to men; women do not receive the same and/or fair remuneration in comparison to their male counterpart and women are not able to progress as fast as men in their careers once in local government structures , into leadership role that grant women equal access to become decision makers alike their male counterpart. The reasons for the low proportion of women to men in leadership is attributed to intersecting oppressions that women remain confronted with and can be seen to be connected to historical patriarchal norms and institutional values, which excludes and marginalizes women and institutional culture is stronger than the process of changing this culture.

The main scientific results: The findings of the study suggest that women are lagging behind in decision making. Secondly, organizational structures that are attributed to the presence of dominant behaviours in the workplace can be seen to be linked to patriarchy and male dominance exclude and marginalize women. Thirdly, women’s representation within South Africa at the municipal ward and PR levels is on a downward spiral, when comparing the 2021 electoral results to previous electoral results in 2016. Notably, there is a lack of practicality of women's status in local government, policy enacted such as the Women Empowerment and Gender Equality Bill contains the key element that failure to comply with the Constitution justifies punitive action against the defaulting unit. This includes local councils and executive officers. Clause 11 requires 50 percent representation of women. Highlighting instances of failure to comply, with no punitive actions taken. South African women are passive recipients of male-dominated decision making in local government.

The area of practical use of the research results: South African public and private sector institutions. Any persons connected to gender justice within society
Simulation of the expander of the excess gas pressure utilization plant
Authors: Kulіnchenko Heorhіi , Panych Andrii , Leontiev Petro , Zhurba Viacheslav
Published: September 2022

The object of research: The expander of the excess gas pressure utilization plant.

Investigated problem: Increasing the efficiency of the process of utilization of excess gas pressure during its distribution from main high-pressure gas pipelines. Development of hardware and software tools that provide automation of the process of regulating flow parameters under the influence of time-varying disturbances.

The main scientific results: A mathematical model of the process of utilization of excess gas pressure has been developed, and an experimental assessment of its adequacy has been carried out. With the help of the Matlab application “Linear Analysis Points”, the description of the object is linearized, which makes it possible to obtain its representation in the state space.

The area of practical use of the research results: The sphere of application of the results of the study is automation objects related to the regulation of gas flow parameters. The results of identification of model parameters provide an opportunity for the synthesis of the process controller.

Innovative technological product: In accordance with the task of increasing the efficiency of the process of utilization of excess gas pressure when it is distributed from the main high-pressure gas pipelines, a mathematical model of the channel for controlling the speed of rotation of the turbine (expander) has been developed, which serves as the basis for the synthesis of the regulator for the utilization process.

Scope of the innovative technological product: The developed model can be used in the construction of turbine speed controllers, which are used in the generation of electricity. The approach to the linearization of the description of the control object makes it possible to automate the process of identifying its parameters.
Crossing Symmetric Spinning S-matrix Bootstrap: EFT bounds
Authors: Dutta Chowdhury Subham , Ghosh Kausik , Haldar Parthiv , Raman Prashanth , Sinha Aninda
Published: September 2022

We develop crossing symmetric dispersion relations for describing 2-2 scattering of identical external particles carrying spin. This enables us to import techniques from Geometric Function Theory and study two sided bounds on low energy Wilson coefficients. We consider scattering of photons, gravitons in weakly coupled effective field theories. We provide general expressions for the locality/null constraints. Consideration of the positivity of the absorptive part leads to an interesting connection with the recently conjectured weak low spin dominance. We also construct the crossing symmetric amplitudes and locality constraints for the massive neutral Majorana fermions and parity violating photon and graviton theories. The techniques developed in this paper will be useful for considering numerical S-matrix bootstrap in the future.
Topological multiferroic order in twisted transition metal dichalcogenide bilayers
Authors: Haavisto Mikael , Lado J. L. , Otero Fumega Adolfo
Published: September 2022

Layered van der Waals materials have risen as powerful platforms to artificially engineer correlated states of matter. Here we show the emergence of a multiferroic order in a
twisted dichalcogenide bilayer superlattice at quarter-filling. We show that the competition between Coulomb interactions leads to the simultaneous emergence of ferrimagnetic and ferroelectric orders. We derive the magnetoelectric coupling for this system, which leads to a direct strong coupling between the charge and spin orders. We show that, due to intrinsic spin-orbit coupling effects, the electronic structure shows a non-zero Chern number, thus displaying a topological multiferroic order.
We show that this topological state gives rise to interface modes at the different magnetic and ferroelectric domains of the multiferroic. We demonstrate that these topological modes can be tuned with external electric fields as well as triggered by supermoiré effects generated by a substrate.
Our results put forward twisted van der Waals materials as a potential platform to explore multiferroic
symmetry breaking orders and, ultimately, controllable topological excitations in magnetoelectric domains.
Look-ahead Behavior in Food Culture: The Case of Korean Food Buying
Authors: Puspita Rosana Eri , Ayuningrum Anindita Neng Puspa Dwi , Zulaikha Yasinta , Thaker Mohamed Asmy bin Mohd Thas
Published: September 2022

The buying behavior of Korean food culture is interesting to study because of its familiarity in Indonesia.  The purpose of this study is to determine the buying behavior of traditional Korean food among Indonesian. The research was conducted using a quantitative approach. Data were collected through an online questionnaire from 100 respondents. The results showed that subjective knowledge about Korean food did not affect the purchase intention of Korean food, while the image of the Korean country affected purchasing traditional Korean food. Halal label testing as a moderating variable was carried out in this study. Halal label moderates' knowledge on purchase intention and does not moderate the Korean image on purchase intention. The new thing offered in this research is the discussion of the cultural invasion that attacks Indonesian.
Kampung Madinah: The Construction of Jamaah Tabligh for the Arabization Process in Magetan, East Java
Authors: Pabbajah Mustaqim , Laila Nur Quma , Ponnui Terachai , Sungkilang Siti Aisyah , Juhansar Juhansar
Published: September 2022

Arabization is not always identically carried out by immigrants of Arab descent, but non-Arab communities can carry out the Arabization process. This study aims to explain the Arabization process by the Jamaah Tabligh (JT) group by establishing the Kampung Madinah of Temboro Village. This study relies on collecting qualitative data through observation, interviews, and literature study with descriptive analysis. The findings show that the existence of JT in Temboro Village has resulted in a shift in community culture from secular to religious. The role of the JT leadership became an emerging factor in the Arabization process in the formation of a religious society. Likewise, JT's persuasive approach through education and religious activities facilitates public acceptance. The naming of Kampung Madinah in Temboro is driven by various Arabic symbols used, e.g., daily conversations, activities, and clothes. The existence of JT succeeds in constructing Temboro people's habits into “Islamic habits.” This study is limited to Kampung Madinah in Temboro as a research focus; therefore, it is recommended for further researchers to conduct comparative studies on the Arabization process.
Humanization of Logo as a Representation of Social Values in Halodoc
Authors: Tommi Tommi , Saidi Acep Iwan , Chonmaitree Thirathep , Abdul Razak Mohamed Razeef , Murwonugroho Wegig
Published: September 2022

In utilizing the Halodoc application, there is a communication gap between direct speech communication and communication through the application. Through Roland Barthes' semiotic method, this research attempts to examine this problem and propose an alternative solution in the form of emoji humanization. Heidy's emoji structure is indeed synonymous with the Halodoc logo. Meanwhile, according to the connotative analysis, you can see the emoji visualization whose characters are identical to today's human characters. This character is characterized by expressions and facial expressions that look cheerful and friendly. This study concludes that there are a number of indicators of success in composing humanist emojis and still referencing the main logo identity. In the principle of emoji design, structurally it must be dominated by a shape similar to the original logo. The addition of mimics, expressions, limb movements, and body movements itself must represent the true expressions of humans who provide health ordering services. Thus, emojis are more attractive, interactive, and communicative. As confirmed by various studies, this intimacy between users and emojis that looks humanist has proven to strengthen customer trust in services.
Digital diplomacy and digital international relations: Challenges and new advantages
Authors:   St. Petersburg State University, Tsvetkova Natalia , Sytnik Anna ,   St. Petersburg State University, Grishanina Tatiana ,   Baltic State Technical University «Voenmeh» named after D. F. Ustinov
Published: September 2022

The paper introduces concepts relative to digital international relations, including the following clusters as data/digital diplomacy; cyber security and cyber diplomacy; global internet governance; and, finally, digital voting. All these elements have come under the pressure of datalization that is the growth of digital actors and of big data analytics used often for political purposes. This paper focuses on one of the elements of digital international relations, notably the digital diplomacy. The authors discuss new challenges including digital uncertainty, fractured digital reality, and framing. Based on the analysis of data retrieved from social media by computational algorithms, the authors test these new challenges in case studies related to the digital diplomacy conducted by the United States, Russia and China in such countries as Afghanistan, Syria and Iran in various timelines. The authors reveal that multiple digital bloggers, mass-media, various entities, etc., can diminish the effectiveness of governmental digital diplomacy. At the same time, the datalization, digital uncertainty, and fragmentation allow the official diplomacy of the states to promote values through specific policy of framing discussed in the paper. Based on the empirical data, it can be concluded that the current stage of digitalization of international relations compels the states to introduce new binding agreements to draw “cyber red lines” or, equally, to maintain internet freedom that will contribute to shaping a balance of power in cyberspace.