bluuebunny/crossref_metadata_2025 huggingface dataset:
Chyluria: clearing the ‘muddiness' with lipiodol lymphangiography
Authors: Khera Pushpinder , Garg Pawan , Choudhary Gautam , Ghosh Tushar , Tiwari Sarbesh , Choudhary Bharat
Published: July 2023

Chyluria is a rare entity characterised by the presence of chyle/lymphatic fluid within the urine. It develops following an abnormal communication between the perirenal lymphatics and pelvicalyceal lymphatics. There are multiple causes of chyluria including infective (filariasis), post-traumatic, post-surgical, pregnancy and malignancy. We present a case of a 15-year-old male who presented with a complaint of the intermittent passage of milky urine for the preceding 1 year. Conventional lipiodol lymphangiography followed by cone beam computed tomography was done to look for abnormal fistulous channels. Subsequently, the patient was successfully treated with cystoscopy-guided renal pelvic instillation sclerotherapy of povidone-iodine.
EFEK WORK CLIMATE DAN SUBJECTIVE WELL BEING PADA JOB PERFORMANCE GURU SD WANITA SAAT WFH
Authors: Purba Sylvia Diana , Christy Dyona
Published: July 2023

Situasi pandemi yang berpengaruh terhadap berbagai dimensi kehidupan turut pula mempengaruhi situasi pembelajaran di berbagai sekolah. Riset ini dilakukan terhadap sejumlah guru SD wanita di Jakarta Timur, Jakarta Pusat, Jakarta Utara, Bekasi dan Bogor untuk menganalisis pengaruh iklim kerja dan kesejahteraan subjektif terhadap kinerja ketika proses belajar mengajar dilakukan secara daring. Sebanyak 87 guru SD wanita yang menjadi responden penelitian masih memiliki kinerja yang relatif baik dimasa pandemi. Metode sampel purposive dilakukan mempertimbangkan guru wanita yang sudah menikah memiliki peran ganda akan lebih terdampak bila bekerja dari rumah (WFH). Penelitian ini mengolah data menggunakan analisis SEM dengan smartPLS, dan hasil uji membuktikan iklim kerja berpengaruh signifikan terhadap kinerja, begitu pula terhadap kesejahteraan subjektif. Di sisi lain kesejahteraan subjektif sangat kuat dan signifikan berpengaruh terhadap kinerja serta signifikan memediasi pengaruh iklim kerja terhadap kinerja, meskipun pengaruh langsungnya lebih kuat.
 
The pandemi situation that affects various dimensions of life also affects the learning situation n various schools. This research was conducted on a number of female elementary school teachers in East Jakarta, Central Jakarta, North Jakarta, Bekasi and Bogor to analyze the effect of work climate and subjective well-being on performance when the teaching and learning process is conducted online. A total of 87 female elementary school teachers who became research respondents still had relatively good performance during the pandemi. The purposive sampling method was carried out considering that married female teachers who had multiple roles would be more affected when working from home (WFH). This study processes data using SEM analysis with smartPLS, and the test results prove that the work climate has a significant effect on performance, as well as on subjective well-being. On the other hand, subjective well-being is very strong and has a significant effect on performance and significantly mediates the effect of work climate on performance, although the direct effect is stronger.
Interaktywne i innowacyjne działania instytucji kultury jako pole działań "edutainment"
Authors: Manikowska Justyna
Published: July 2023

Celem artykułu jest prezentacja znaczenia pojęcia edutainment w kontekście działalności instytucji kultury w Polsce. Przeprowadzona została analiza sposobów realizacji edukacyjnej roli pięciu placówek: Centrum Nauki Kopernik w Warszawie, Muzeum Historii Żydów Polskich Polin w Warszawie, Muzeum Sztuki w Łodzi, Muzeum Fabryki w Łodzi oraz Centrum Nauki i Techniki EC1 w Łodzi. Poddano analizie strony internetowe, oferty placówek oraz ich działalność w social mediach. W pracy ukazany został również wpływ pandemii COVID-19 na działania edukacyjne wskazanych instytucji kultury, który widoczny jest w digitalizacji zasobów placówek i upublicznieniu ich w sieci. Interaktywne i innowacyjne działania edutainment nie są jeszcze powszechnie znane, ale stają się coraz bardziej popularne, co pokazane zostało w toku analizy.
Subordinate Support Staff as Primary ‘Internal Custodians’ of Academic Performance, Social and Emotional Development among Students in Primary and Secondary Schools in Uasin-Gishu and Trans-Nzoia Counties, Kenya
Authors: Patrick Kimutai Tum
Published: July 2023

The current study examined the integral role of subordinate support staff in primary and secondary schools in Kenya on the overall academic performance and social and emotional well-being of students. A total of 80 student respondents currently attending tertiary institutions in Uasin-Gishu and Trans-Nzoia Counties in Kenya were interviewed using an on-spot questionnaire. The findings indicate a near 'fanatical,' 'nostalgic,' and 'emotional' attachment of the student respondents to almost all the various subordinate support staff they interacted with in their formative educational years. Respondents enrolled in boarding schools at an early age reported strong 'emotional' and 'social support' from especially matrons, cooks, and drivers who acted primarily as caregivers. The relationship between students and subordinate staff developed to the extent of students assigning 'nicknames' to some of them. In one of the primary and secondary schools, the school bus was assigned the names 'monkey cage' and 'Lucy.' The student respondents ranked the following subordinate staff as follows:

Bursar (3%),

Secretary/messenger (2%),

Laundry attendant (8%),

Telephone operator (1%),

Swimming pool attendant (4%),

Bus driver (14%),

Health staff (10%),

Matron (25%),

Cooks/caterers (21%),

Cleaner/groundsman (3%),

Security (9%)

The results show that 97% of student respondents acknowledged the significant role of subordinate support staff in promoting the overall academic performance and social and emotional development of students in primary and secondary schools in Kenya. The study concludes that the presence of subordinate support staff in the various educational institutions attended by the student respondents had a beneficial effect allowing them to have a more active role in interactions with adults.
Determinants of Teacher Attrition in Public Secondary Schools in Bayelsa and Delta States, Nigeria
Authors: Peter Tobore Ofoyeju  , Nelson Ejiro Akpotu  , Ebele Joyce Egwunyenga
Published: July 2023

This study examined rates of teacher attrition and the multiple factors influencing teacher attrition in public secondary schools in Bayelsa and Delta States, Nigeria, between 2015 and 2019 with a view to providing empirically-based, lasting solutions to the challenges of teacher attrition in Bayelsa and Delta states, Nigeria. Relying on state teachers' evidence and data, two research questions were posed to guide the study. The population of the study consists of 1563 public secondary school teachers. Using Cochran's formula for sample size determination, 723 teachers were sampled randomly for the study. The structured instrument for the investigation was validated, and its reliability was determined using Croncbach's Alpha statistical tool. A reliability value of 0.73 was found. Data analysis shows that salary and remuneration are remarkably associated with teachers' exit. Non-monetary motivation is not a sustainable substitute for an improved competitive salary. The study recommends attractive and competitive remuneration and improved teacher conditions of service, among others.
Factors of Teacher Transfer in Bayelsa and Delta States, Nigeria
Authors: Peter Tobore Ofoyeju  , Nelson Ejiro Akpotu  , Ebele Joyce Egwunyenga
Published: July 2023

This study sought to determine the predictors of teachers' transfers within state-owned secondary academies in Bayelsa and Delta States with a view to determining the reasons for teachers' transfers within state secondary academies. Using Cochran's Alpha formula for small sample size determination, three hundred fifty (723) teachers were sampled from a population of 15,631 for their opinion on why teachers seek transfers. A structured questionnaire was used to obtain data for the study, along with data on teachers' transfers collected from the secondary school management boards of both states. The instrument was validated, and a reliability value of 0.77 was found for teachers using Cronbach's alpha statistic tool. Findings show that a remarkable number of teachers leave a particular school within the jurisdiction of the school system annually; however, analyses with Pearson's product-moment coefficient indicate that teachers' transfers are not remarkably linked to students' mobility; instead, the need to pass external examinations is. The study recommends, among other things, strict compliance with transfer practices.
Corporate Visioning and Organizational Growth to Multinational Corporation
Authors: Nwadike, Stanley Chukwuma  , Nnadi, Uche Fidelis
Published: July 2023

The broad objective of the study was to examine Corporate Visioning and Organizational Growth for Multinational Corporations. The research method used was secondary research method and particularly literature review which is the use and review of data available on the internet. The secondary data sources referred to were articles and various journals. The objective of ascertaining whether a vision statement affects the organizational growth of a Multinational Corporation appears to be positive from reviewed literature because it reveals that there is a direct impact of vision on organizational growth and performance, and vision can determine the organizational ideal future condition. The other objective of ascertaining the impact of vision communication on organizational growth networks from reviewed literature can be concluded that vision communication, which can be classified as shared vision, is very imperative for organizational growth. It will position the organization well for global competition and the actualization of goals and objectives that can lead to superior performance and, ultimately, organizational growth and transformation. The study recommends that organizations that want to expand and achieve superior performance and transformation must have an inspiring vision and a vision that is properly crafted and communicated to all stakeholders of the organization in order to serve as a guiding light towards growth focus.
Isolation and Identification of Fungi Associated with the Spoilage of Cocoyam Corms
Authors: Ezugwu, Roseline Ifeyinwa
Published: July 2023

Cocoyam (Colocasia esculenta) is an important tropical root crop grown purposely for its starchy corms. This study was carried out to isolate and identify fungi associated with the spoilage of cocoyam corms. These organisms were isolated from spoilt corms by direct inoculation of the rotten tissues on Sabouraud Dextrose Agar. The fungal isolates were identified using cultural and morphological features such as colony appearance and also through microscopic characteristics. The isolated organisms include Rhizopus stolonifera, Rhizopus arrhizus, Fusarium oxysporum, and Aspergillus niger. Out of the 70 samples that were analyzed, 45 (64%) had Rhizopus stolonifera, 36 (51%) had Fusarium oxysporum, 52 (74%) had Rhizopus arrhizus while 61 (87%) had Aspergillus niger. A pathogenicity test was carried out on healthy corms using isolated microorganisms. The result showed that the organisms were responsible for the deterioration of the corms. These organisms may have infected these corms through contaminated working tools during harvest or improper storage by farmers. Corms are always infected by molds if not properly handled or stored. Hence, proper care should be taken while harvesting, handling, or storing these corms to avoid being infected by these pathogenic organisms since they can be detrimental to human health. It can also cause huge economic losses to farmers.
Comparative Study of Sublingual versus Rectal Route of Misoprostol Administration in Prevention of Primary Post-partum Haemorrhage in Women with Risk Factors in ESUT Teaching Hospital, Enugu, Nigeria
Authors: Sylvester Nweze Onuegbunam  , Ezenwaeze Malachy Nwaeze  , Leo Clinton Chukwu
Published: July 2023

Background: Post-partum haemorrhage is a major cause of maternal death globally but more in low-income countries. While various studies recognized the efficacy of misoprostol in decreasing intraoperative blood loss, there is no consensus on the most effective route of administration of misoprostol.

Objective: This study compared the effect of sublingual misoprostol with rectal misoprostol in preventing primary post-partum haemorrhage in women with risk factor(s) to PPH.

Methodology: This is a comparative study that involved 200 participants who were randomized to two groups by 1:1 computer-based randomization (group A & group B). Each participant in group A received a 600mcg sublingual misoprostol plus rectal placebo, and participants in group B received a 600mcg rectal misoprostol plus sublingual placebo after delivery. The delivery mat already in use and soaked with liquor was removed once delivery was imminent, a new pre-weighed mat was replaced under the patient's buttocks, and also a pre-weighed sanitary pad was placed in her vulva to collect all the blood loss. The need for additional uterotonics and blood transfusion was assessed, and findings were documented appropriately in the proforma. Blood loss throughout a period of 24 hours after the delivery was measured by the gravimetric method. Weight gain from the sanitary pad/ delivery mat was calculated as 1g = 1 ml. The sanitary pad/mat was weighed in triplicate, and the mean of the three weights was entered into the database. The difference was the amount of blood loss, assuming 1g to be equivalent to 1 ml of blood.

Result: The median 24-hour post-partum blood loss was less in sublingual group when compared with the rectal group (110ml vs 170ml) P=0. 001.The mean post-partum Hb was higher in sublingual group 10.00±1.21 vs 9.00± 0.61 P=0.30. Both sublingual and rectal routes of misoprostol administration were effective in preventing PPH, P-value=1.0 and there was no indication for extra-uterotonic or blood transfusion.

Conclusion: It is concluded that even though sublingually and rectally administered misoprostol showed equal efficacy in preventing PPH, sublingual route is associated with less blood loss.
Evaluation of the Nephroprotective and Hypoglycemic Effect of Aqueous Extract of Leaf and Root of Thaumatococcus danielli on Alloxan-Induced Diabetic Rats
Authors: Salaudeen Ibrahim Aderemi  , Dr. Olojo Folake O.  , Rasheed-Adeleke, Azeezat Ayannike  , Onye Ihimi  , Ogunbusola Sade G.
Published: July 2023

The management of diabetes without side effects is a major challenge affecting majorities of the world population, thus the constant search for alternative compounds from natural products. This study investigated the nephroprotective and the hypoglycemic effect of aqueous extract of the leaf and root of Thaumatococcus danielli (T. danielli). Rats were assigned to 9 groups (1-9) of four rats each. Each group was made diabetic using Alloxan (150 mg/kg/b.wt) except the control group. The treatment group received 0.5 ml of Metformin (150 mg/kg/b.wt,), 200 and 400 mg/kg/b.wt, of Thaumatococcus danielli aqueous extract of leaf, root, and mixture orally, respectively. After 14 days of treatment, animals were sacrificed, and blood and kidney samples were collected for further analysis.

The lowest reduction in glucose level was 22.65%, which was observed in the diabetic group treated with 200 mg/kg aqueous leaf of T. danielli, while the highest decrease was observed to be 38.63% in the diabetic group treated with 400 mg/kg aqueous root of Thaumatococcus danielli. The diabetic control group had a significantly higher level of sodium and potassium ions. Little changes were observed in chloride, carbonate, and total protein level in the diabetic group compared to the control group; while urea and creatinine levels were higher. Histological alterations such as poor architecture, few collapsed renal tubules, and loss of luminar spaces were observed in control.

From this study, it can be inferred that aqueous extracts of the leaves and roots of Thaumatococcus danielli and their combination have antihyperglycemic activity as well as modulating renal indices and diabetes-induced nephropathy.
The Importance of Critical Thinking in Hotel Industry and Employee Development
Authors: Liu Ran  , Xie Juan
Published: July 2023

This study explores in detail the benefits of critical thinking in helping employees maximize their self-development and sense of success and analyse the reasons for the poor effect of hotel staff training. Based on a survey of 200 employees in 5 hotels of 4 star in China. In addition to referencing already developed ideas about the stages of improving critical thinking, this study provides additional explanations to deliver the approach.

Drawing on self-determination theory (SDT), this study shows that critical thinking has a positive and significant effect on the self-development and sense of the success of employees. Based on SDT, this study deepens our understanding of the process of how critical thinking leads to self-development, and using critical thinking is a prerequisite for improving training.
How to Develop the Circular Economy in Vietnam
Authors: Dr. Vu Thi Uyen  , Le Anh Thu
Published: July 2023

In the context of international economic integration, promoting the application of the concept of circular economy is a strong tendency in many countries over the world, especially when the world's resources are increasingly exhausted because it helps to better solve the problem of resolving the relationship between the economic growth and the environmental pollution control. Circular economy is a closed production cycle, the resources and wastes of the previous production process are reused, recycled, or salvaged, and the waste streams are turned into inputs for the new production cycle. In Vietnam, the process of accelerating industrialization and modernization has brought remarkable economic development achievements. However, it has to face serious challenges with resource depletion, environmental pollution, and climate change. That reality requires a new approach, i.e., a transition from a linear economy to a circular economy. This article is based on secondary data that has mentioned the benefits of the circular economy, the manifestations as well as the opportunities and challenges for the development of the circular economy in Vietnam, thereby proposing some recommendations for stakeholders to develop an economy that ensures the harmony between economic benefits and environmental protection, economic growth in parallel with reducing the harmful effects of climate change.
Research on Employee Incentive Mechanism of State-Owned Enterprises in the Era of Big Data: Take H Water Conservancy Engineering Company as an Example
Authors: Fengju Zhang  , Qi Tian  , Jianjun Tian
Published: July 2023

With the advent of the era of big data, the development models of various sectors of the social economy have changed, and there are more and more market opportunities, but competition and challenges have also come along. As an important productive force in the competition and development of modern society, talent has become increasingly prominent in the digital process. Especially for state-owned enterprises, which are essential lifelines and pillars of the national economy, the quality of talent is the key to the success or failure of enterprises. This article intends to reveal the existing problems in the talent incentive process of state-owned enterprises through a case study of the employee incentive mechanism of H Water Conservancy Company and conduct a detailed analysis of the specific reasons. Then, it proposes targeted incentive mechanism optimization plans to provide some valuable reference suggestions for state-owned enterprises to find appropriate talent cultivation and innovation strategies in the increasingly fierce competition.
Psychological Design-Based Intervention to Help Someone to Quit Smoking
Authors: Ayodele Oluwole Ojebiyi
Published: July 2023

The study aims to design a psychologically based intervention to assist individuals in quitting smoking. Smoking is said to add to many health challenges, such as cancer, lung diseases, and cardiovascular diseases. A critical review of some electronic databases such as Cinahl, Embase, Ovid Medline, Web of Science, and ProQuest Central was extensively searched to identify relevant scholarly journals until December 2022. Five 'A's model was adopted and aimed at assisting a smoker in quitting smoking. These are:

Ask (Do you use tobacco),

Advise - Flawless, robust, tailored messages like 'I can be of assistance to you.'

Assess - Could you consider quitting as a trial in the next 45 days?

Assist- Will assist the patient via quitting provided counselling, increase quit motivation, and pharmacotherapy to assist them.

Arrange - Follow-up sessions and/or attendance of the smoking cessation. Cognitive Behavioural Therapy (CBT), Motivational Interviewing (MI), Counselling and Telephone, and Smoking cessation support, among others, are part of behavioural interventions.
Equity in Access to Healthcare and Poverty in Cambodia
Authors: Richard Aboagye-Gyan
Published: July 2023

The relationship between equity in access to healthcare and poverty is of major concern. The Health Equity Funds mechanism is used by countries to ensure access to healthcare for the poor, with the overarching intention of ensuring equity in access to healthcare among the rich and the poor. Perhaps the best country on earth committed to its use is Cambodia. Despite several studies conducted on equity in healthcare and poverty in the country, there is a dearth of research on the relationship between the two concepts and policies to overcome challenges in the health system to achieve all-important equity. Based on empirical research, this paper explores the relationship between equity in access to healthcare and poverty in Cambodia and critically analyses the policy measures required to overcome challenges in the health system to ensure equity in access to healthcare in the country.
Effects of Community Participation in the Restoration of Rumuruti Forest in Laikipia County, Kenya
Authors: Lima Johnnie Loreng
Published: July 2023

Reforestation is a concerted effort to discover forest formation, biodiversity, and ecosystem practices through tree planting. There is a drive by international organizations to reclaim about 150 million ha of degraded forests by 2030. The Rumuruti Forest is located in the Laikipia County of Kenya. It is a unique and biodiverse forest renowned for its high density of large mammals, including elephants, lions, leopards, and rhinoceroses. The forest is home to several rare species, such as the upright-horned antelope, the black-faced vervet monkey, and the yellow-necked spurfowl. Rumuruti Forest is an expansive 15,378-acre forest located in Laikipia County, Kenya. These benefits had been offset by rapid habitat loss and degradation despite concerted efforts by the Kenyan government to restore as well as maintain this resource. Besides, previous restoration attempts of Rumuruti forest had been ineffective, as indicated by the widespread withering of recently planted seedlings, resulting in a doubling of replanting operations. A descriptive research design was applied to describe the current state of variables that could be identified. The study's specific objective was to investigate the potential socio-economic benefits of Rumuruti forest restoration to community members. A descriptive research design was applied to describe the current state of variables that could be identified. Research took place in Rumuruti town, Laikipia County, Kenya. It is located 40 km due North of Nyahururu. The geographical coordinates of Rumuruti town are 0.25996°N, 36.53633°E, with a population of 31649 people. The target population for this study was 4,800 people. The sample size was 139 households. The study concluded that the community was considerably more eager to work with the government and NGOs to contribute to the restoration of the Rumuruti forest. The community desired to be more involved in the restoration operations, including tree planting, tendering, and protection. As a result, effective processes were put in place to maximize the potential to achieve optimal regeneration of the Rumuruti forest.
Efficacy of RERA Web Portals
Authors: Gupta Sejal , Jha Deepika
Published: July 2023

The Real Estate (Regulation and Development (R&D)) Act, 2016 aimed to set up Real Estate Regulatory Authorities (RERA) for the regulation and promotion of the real estate sector in a transparent and accountable manner. One of the important elements introduced by the Act was a web portal to be maintained by RERA, which would empower homebuyers to make informed decisions when buying their dream homes, as well as enable them to take stock of the project status and approvals.
COMPARATIVE ANALYSIS OF SIMPLE LAWSUITS AND ORDINARY CIVIL LAWSUITS
Authors: Pratama Ridwan
Published: July 2023

Resolving disputes through traditional court processes may not be ideal for minor claims due to the disproportionate costs involved. To address this, the Supreme Court introduced Perma Number 2 of 2015, amended by Perma 4 of 2019, which establishes procedures for simple lawsuits. This study examines the similarities and differences between simple and ordinary civil lawsuits, as well as the challenges inherent in each. Using a normative-empirical legal method with a descriptive approach, the research analyzes primary and secondary legal materials. Findings indicate that while both types of lawsuits accommodate legal classifications and remedies, simple lawsuits impose restrictions such as a maximum claim value of IDR 500,000,000, exclusion from certain disputes, and mandatory personal attendance by the Principal at each trial, which are not present in ordinary lawsuits. Challenges for ordinary civil lawsuits include lengthy case resolution, unrestricted appeal options, and implementation issues, whereas simple lawsuits face obstacles like mandatory Principal attendance, limited defendant rights, and vague decision implementation regulations.
UNGKAPAN KEMARAHAN MASYARAKAT ETNIS PASEMAH BENGKULU: KAJIAN TRADISI LISAN SEBAGAI SARANA KONTROL SOSIAL
Authors: Youpika Fitra , Permadi Tedi , Sumiyadi Sumiyadi , Sunendar Dadang
Published: July 2023

This research is a study of cultural expressions (oral traditions) which aims to describe traditional expressions of the Pasemah Bengkulu ethnicity as a means of social control in society. The research method used is a descriptive ethnographic approach. The research data is in the form of traditional expressions of the Pasemah Bengkulu ethnic community which were obtained through observation and or recording from a number of informants intentionally or not. The research procedure follows the steps proposed by Spradley (1997). The results of the study are seen from the meaning, communication situations, speakers of the other party, and ways of expressing anger. Expression of anger is a means to express feelings of annoyance, disappointment, and dislike. Expressions of anger can be a means of therapy for speakers and interlocutors for the emotions they experience and are one of the cultural images of the Pasemah Bengkulu ethnic community. In addition, the expression of anger is also a form of social control for society as well as a recorder of taboo vocabulary.
Economic aspects of the Anglo-French confrontation during the Napoleonic Wars
Authors: Morzheedov Vladislav Gennad'evich
Published: July 2023

The article deals with the problem of economic confrontation between France and Britain during the Napoleonic Wars. The subject of the study is the nature and conditions of the Anglo-French confrontation through the prism of economic processes. The object of the study are those measures and actions that were taken by France and Britain in order to establish their own economic superiority, special attention is paid to the Continental Blockade introduced by Napoleon I Bonaparte. The purpose of the study is to analyze the causes and consequences of Anglo-French rivalry, as well as the peculiarities of the development of national economies in wartime conditions. The article discusses the measures that have been taken to overcome the crisis phenomena by the governments of France and Britain in connection with the conduct of a policy of mutual blockade. The special role of the naval force and the smuggling trade is noted. The author uses chronological, historical-comparative and historical-system research methods in his work. The results of the study may be of interest to specialists in economic or military history, as well as in the theory and history of international relations. There are still conflicting assessments of the effectiveness and consequences of the economic measures taken by the French and British governments to establish their own hegemony on the European continent. The novelty of the study consists in a comprehensive examination of the nature of the economic confrontation between the two European "superpowers" in the early XIX century. The relevance of the study is determined by the fact that the instrument of economic blockade, the policy of sanctions and counter-sanctions, as well as trade wars remain one of the most important elements of the military-political confrontation of various modern states.
Deterministic and Probabilistic Approaches to Model and Update Dynamic Systems
Authors: Cooper Jared K. , DeVore Michael , Reed Adam , Morelli Eugene A.
Published: July 2023

Updating simulation models, based on flight test or other data, or creating a model using only experimental data is a necessary process that can be costly and laborious. Simulation updates are necessary for high-fidelity simulations used in analysis, control development, handling qualities prediction, fleet training, etc. This paper presents methods to update aircraft models based on deterministic and probabilistic approaches. The deterministic approach is based on a collection of signal processing, statistical analysis, and maximum likelihood estimators embodied in the Algorithms to Update Simulation Parameters with Experimental Data tool. Mathematically sound and statistically rigorous techniques are used to calculate updates of current model parameters and suggest new terms capturing unmodeled dynamics, thereby improving correlation with observed vehicle response. The probabilistic approach is based on generalized polynomial chaos theory included in the Algorithms for Uncertainty Representation and Analysis (AURA) tool. The AURA tool allows the user to update probabilistic models based on experimental data, formulated as a Bayesian inference problem. This paper will present the methodology for both deterministic and probabilistic approaches and provide examples of their application to different aircraft designs, including tilt-rotor and rotary-wing unmanned air system vehicles. The results for both deterministic and probabilistic modeling approaches demonstrate excellent results. The probabilistic approach is novel in its expressive power to propagate and update probabilistic models and provides users with an intuitive and powerful modeling approach.
Hierarchical Method for Mining a Prevailing Flight Pattern in Airport Terminal Airspace
Authors: Chu Xiao , Zeng Weili , Tan Xianghua , Zhou Yadong , Zhu Dan
Published: July 2023

Due to the variety of flight patterns in airport terminal airspace, as well as the high global similarity of different flight patterns entering and leaving from the same runway or corridor, it is difficult for current mainstream methods to achieve good clustering. To this end, this paper first constructs a truncated dynamic time warping (TDTW) trajectory similarity measurement to characterize different trajectory patterns with high global similarity and large local differences. Furthermore, a hierarchical flight pattern mining method is proposed, which is divided into four layers according to different characteristics. The first three layers of the method classify trajectories according to takeoff and landing types, runways, and corridors; whereas the fourth layer uses a [Formula: see text]-medoid clustering method based on TDTW, thereby making the mining process more controllable and in line with actual operation. Compared to dynamic time warping, the experimental results show that the intraclass compactness and interclass separation of the cluster obtained by the proposed method have decreased and increased by 44.6 and 20.1%, respectively, and the overall performance has improved by 54.1%. More refined and reasonable flight patterns have been obtained.
Verification of Reliability and Validity of a Malaysian Version of Rathus Assertiveness Schedule as Drug Prevention Scale
Authors: Jusoh Ahmad Jazimin , Imami Muh Khairul Wajedi , Handrianto Ciptro , Isa Ahmad Nazir Mohd , Omar Siti Zobidah , Abdullah Azizi , Wahab Suzaily
Published: July 2023

The aim of this research was to verify the Malaysian version of Rathus assertiveness as a drug prevention scale in secondary students. The current research articipants were 211 secondary students in Johor, Selangor, and Kuala Lumpur, Malaysia. An exploratory factor analysis with principal axis factoring and varimax rotation was performed for the initial analysis. After the eigenvalue emerged, the data was suppressed to .30 to display the factor loading. The value of commonalities and factor loading was considered to frame and locate the items in the scale structure. Furthermore, the reliability of the scale was tested through Cronbach's alpha. The result showed that nine factors emerged, explaining 58.721% of the variance. Four of the 30 items were eliminated from the analysis because they had commonalities below the threshold. The structure of the scale was as follows: seven items in the first factor, four items in the second factor, four items in the third factor, two items in the fourth factor, two items in the fifth factor, one item in the sixth factor, two items in the seventh factor, two items in the eight factors, and one item in the ninth factor. Furthermore, the reliability of the scale was .748. Meaning that the scale was internally consistent in measuring the secondary student`s assertiveness in drug education.
Aneurysmal bone cyst of dorsal spine presenting with paraparesis in a pediatric patient: a case report
Authors: Ghosh Tamajyoti , Mukherjee Aishik , Singh Binoy K.
Published: July 2023

Introduction: Aneurysmal bone cyst (ABC) are rare benign tumours of spine. They most commonly presents with backache. However neurological deficit in spinal ABCs are not uncommon. Magnetic resonance imaging of ABC may sometimes be confused with osteosarcoma or Giant cell tumours. Treatment options are varied but complete excision of tumour with spine stabilisation should be the goal.
Clinical case: Here we presented the case of a 13 year old girl presenting with spastic paraparesis and bladder incontinence with MRI dorsal spine suggestive of an expansile lesion of D5 body. She underwent subtotal corpectomy with fixation of spine . Biopsy was suggestive of aneurysmal bone cyst. Post operative neurological outcome was excellent and followup scans over 2 year period suggest complete remission.
Discussion: ABC are non neoplastic expansile bone lesion consisting of blood filled spaces separated by connective tissue septa of bony trabeculation and osteoclastic giant cells. Similar to our case it is seen more commonly in young females. Lumbar spine has higher incidence of ABC as compared to dorsal and cervical spine. Most common presentation is backache. Surgical options for ABC include intralesional curettage, en bloc resection followed by fixation. Vertebroplasty is also a treatment option to reinforce spinal stability. Post operative radiotherapy also can be considered in partially resected cases. Although ABC have high recurrence rate of 10-44% which has been reported with 2 years following surgery. However our patients continue to have no radiological evidence of recurrence on 2 year follow up.
Conclusion: ABCs are benign tumour which may present with neurological deficit. Although treatment of ABC remains controversial but early surgery with complete removal of tumour in patients with neurological deficit provides excellent recovery. However due to high recurrence rate regular follow up is necessary.
The Abakumlevo 3 Settlement as a New Site of the Migration Period in the Suzdal Opolye
Authors: Морозов А.С.
Published: July 2023

Статья посвящена памятнику эпохи Великого переселения народов в Суздальском Ополье - Абакумлево 3, открытому Суздальской экспедицией ИА РАН в 2021 г. Полученная при первичном обследовании коллекция фрагментов лепной посуды позволяет соотносить обнаруженный памятник с селищами Кибол 1, 7, Сельцо 4-7 и пр., датирующимися третьей четвертью I тыс. н. э. Вещевая коллекция состоит из орудий труда и предметов быта (22 предметов), элементов женской и мужской одежды (23), деталей упряжи (2) и предметов, связанных с производственной сферой (9). Хроноиндикаторы, обнаруженные в центральной части селища, характерны для середины V - начала / первой половины VI в. В рамках публикации материалов разведочных работ автором делается первая попытка определения места селища Абакумлево 3 и памятников этого типа в историко-культурном контексте. Предметы из сборов, а также обнаруженный клад комплекса украшений женского костюма (его публикация планируется отдельно) указывают на принадлежность памятника к культурам поволжских финнов района Окско-Сурского междуречья. Наиболее близкой группой представляется рязано-окская культура. Сложение керамического комплекса происходило на базе смешения традиций мощинской и рязано-окской культур, а также, возможно, и местного населения, проживавшего на территории Суздальского Ополья во второй четверти I тыс. н. э.

The paper explores Abakumlevo 3, which is a Migration period site in the Suzdal Opolye discovered by the expedition of the Institute of Archaeology, RAS, 2021. The assemblage of hand-made pottery fragments obtained during the initial examination of the site suggests that the discovered site can be associated with Kibol 1, Kibol 7 and Seltso 4-7 which are unfortified settlements dating to the third quarter of I mill. AD. The assemblage of goods consists of implements and household items (22 items), details of female and male garments (23), details of harness (2) and objects linked to production (9). Chronological markers found in the central part of the unfortified settlement are typical for the middle of the 5th - turn of the 5th and 6th centuries. In this publication the author undertakes the first attempt to fit Abakumlevo 3 and this type of settlements into the historical and cultural context. The items from the collected assemblages as well as a cache of female garment jewelry (planned to be described in a separate publication) suggest that the site can be ascribed to the cultural groups of the Volga Finns who inhabited the Oka-Sura interfluve. The Ryazan-Oka culture is the closest cultural group. The ceramic assemblage was formed through mingling of the Moshchiny and the Ryazan-Oka traditions as well as, probably, traditions of the indigenous population which lived in the Suzdal Opolye in the second quarter of I mill. AD.
Unfortified Settlements around Medieval Novgorod
Authors: Кудрявцев А.А.
Published: July 2023

В статье приведен обзор материалов археологических исследований на территории новгородских монастырей, в ходе которых были зафиксированы следы сельских поселений, предшествующих появлению обителей. На примере раскопок в Юрьеве, Ситецком и ряде других монастырей приведена характеристика культурного слоя таких селищ. Поставлен вопрос о фиксации изменений их топографии и структуры в ходе превращения в обитель, когда в центре поселения возникает храм и впоследствии формируется окружающий его некрополь.

The paper provides an overview of archaeological excavations within compounds of Novgorod monasteries that identified traces of rural settlements preceding emergence of the monasteries. Taking excavations in the St. George's (Yuriev) monastery, the St. Andrew monastery on the Sitka (known also as the Sitesky monastery) and other monasteries as an example, the paper characterizes the occupation layers of such settlements. The article also raises an issue concerning a need to make changes in their topography and layout as these settlements turned into monasteries, with a church built in the center of the settlement and a cemetery emerging afterwards.
THE GROUP OF COINS OF GRAND PRINCE VASILY I DEPICTING A SIXFOIL ROSETTE MINTED IN THE PRINCIPALITY OF NIZHNIY NOVGOROD-SUZDAL
Authors: Гайдуков П.Г. , Гришин И.В.
Published: July 2023

В период пребывания Нижегородско-Суздальского княжества под вла стью Москвы (1392–1410 гг.) здесь осуществлялась массовая чеканка именных, ано нимных и анэпиграфных монет, которых насчитывается более 5000 экз. В статье публикуется группа монет этого времени, включающая два типа денег, связанных между собой общим штемпелем оборотной стороны с изображением розетки. Моне ты первого типа, которых насчитывается 34 экз., изготовлены одной парой штемпе лей. В изготовлении монет второго типа использовались 35 штемпелей: 19 лицевых и 16 оборотных. Зарегистрировано 313 таких денег, разделяющихся на 34 варианта. В статье рассмотрены вопросы систематизации, топографии и датировки этих де нег, а также представлен их иллюстрированный каталог.

During the study of money used in the Grand Principality of Nizhny Novgorod-Suzdal at the end of the 14th – early 15th centuries and preparation of a cata logue, the authors collected information on more than 12 600 coins. During the period when the principality was under Moscow rule (1392–1410) coins bearing the name of the prince as well as anonymous and anepigraphic coins the number of which exceeds 5000 were minted in great quantities. The paper publishes a group of the coins from this period that includes two types of the coins minted with the same minting die on the re verse that features a rosette. The first type of the coins (34 in total) was made by one pair of minting dies. The number of minting dies used to mint the second type of the coins is 35, namely, 19 obverse dies and 16 reverse dies. The total number of such coins is 313; 34 variants were singled out. The paper reviews systematization, topography and dating of these coins and also provides their illustrated catalogue.
RepoRT: A comprehensive repository for small molecule retention times
Authors: Kretschmer Fleming , Harrieder Eva-Maria , Hoffmann Martin , Boecker Sebastian , Witting Michael
Published: July 2023

Liquid chromatography is frequently employed for the separation of metabolites and other small molecules. Prediction of retention times via machine learning methods can assist compound annotation. Yet, transferable predictions are intrinsically complicated for novel compounds and novel chromatographic conditions because retention times depend both on compound structure and the employed chromatographic system. We present RepoRT, the first repository for retention time data. RepoRT presently contains 373 datasets, 8809 unique compounds, and 88,325 retention time entries measured on 49 different chromatographic columns using varying eluents, flow rates, and temperatures. We put particular effort on making RepoRT “machine learning-ready”: We performed an extensive manual curation, cleaning and completion of the available data; we developed automated methods for data validation during upload; we collected more than 45,000 different columns of different vendors with their lengths, particle sizes, inner diameters, and pore sizes to create a database with normalized column names; and, we ensured that features required for transferable predictions, such as parameters numerically describing the selectivity of chromatographic columns, are readily available. For version control and reproducible research, RepoRT is hosted on GitHub.
Water proton magnetisation lifetimes in the Earth's magnetic field to follow free-radical formation in real time
Authors: Topor Alexandru , Voda Mihai Adrian , Vasos Paul R.
Published: July 2023

Real-time imaging of free-radical formation by experimental methods is important in physical chemistry, biochemistry and radiobiology. Here we show for the first time that the formation of free-radicals during the time course of a chemical reaction can be imaged by monitoring the Earth’s field magnetic resonance of water protons in an open-coil spectrometer. The relaxation rate constants of water magnetisation are enhanced as reactions leading to hydroxyl radicals and subsequent oxygen formation proceed on timescales of tens of minutes. In our work the reaction of iodide-catalysed H2O2 decay was followed by Earth’s field relaxation measurements in real time. The relaxivity of the reaction product and that of several other paramagnetic compounds was measured in water. Spin-trap molecules were used to capture ∙OH radical species, thus altering the reaction rate in proportion to the formation of paramagnetic compounds. Thereby, a new experimental method opening the way for magnetic resonance imaging of reactive oxygen species in the Earth’s magnetic field is proposed, following the formation of intermediate and stable radical species in water.
Acylphosphates as versatile transient species in reaction networks and optical catalyst screenings
Authors: Englert Andreas , Majer Felix , Schiessl Jannik , Kuehne Alexander , von Delius Max
Published: July 2023

Chemically-driven reaction cycles are prevalent in nature, yet artificial examples are still rare and often lack robustness or versatility. In this study, we introduce acylphosphate steady states that can be accessed from a wide range of organophosphates using either carboxylic anhydride or carbodiimide fuels. The combination of carboxylic anhydride fuel and pyridine catalysis makes this chemistry sufficiently robust to allow for 25 fueling cycles without generation of observable quantities of detrimental side products such as pyrophosphates. We demonstrate that the acylation of organophosphates gives rise to transient aggregates, and we harness the transient fluorescence of acylphosphate-bridged excimers in rapid screenings of more than 50 catalysts in a single well plate experiment. Due to its versatility and robustness, we anticipate that the organophosphate / acylphosphate reaction cycle will prove useful for the creation of chemically-driven molecular machines and transient self-assemblies. The parallel optical readout presented herein is an attractive tool for researchers attempting to modulate the kinetics of key transformations within complex reaction networks.
RamanSPy: An open-source Python package for integrative Raman spectroscopy data analysis
Authors: Georgiev Dimitar , Pedersen Simon Vilms , Xie Ruoxiao , Fernández-Galiana Álvaro , Stevens Molly M. , Barahona Mauricio
Published: July 2023

Raman spectroscopy is a non-destructive and label-free chemical analysis technique, which plays a key role in the analysis and discovery cycle of various branches of science. Nonetheless, progress in Raman spectroscopic analysis is still impeded by the lack of software, methodological and data standardisation, and the ensuing fragmentation and lack of reproducibility of analysis workflows thereof. To address these issues, we introduce RamanSPy, an open-source Python package for Raman spectroscopic research and analysis. RamanSPy provides a comprehensive library of ready-to-use tools for spectroscopic analysis, which streamlines day-to-day tasks, integrative analyses, as well as novel research and algorithmic development. RamanSPy is modular and open source, not tied to a particular technology or data format, and can be readily interfaced with the burgeoning ecosystem for data science, statistical analysis and machine learning in Python.