bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of 9 Treatments, Including No Treatment, for Efficacy Against 21 Different Bovine Mastitis Pathogens
Authors: Wilson David J. , Garrison Linda L. , Case Kerry L. , Gonzalez Ruben N.
Published: March 2023

Milk culture results from approximately 540,000 cows housed in approximately 3,500 dairy herds located in New York and northern Pennsylvania were retrospectively reviewed. 9563 cases included in analysis were cultured in consecutive months, had permanent cow identification, records of clinical mastitis signs (if present), records of whether mastitis was treated with an antibiotic, unknown or antibiotic combination, or no treatment at all. Overall bacteriological cure rate was 68.0% (6503/9563); subclinical cases, 67.9% cure rate (6311/9290), did not differ from clinical cases, 70.3% cure rate (192/273). Treated cases had a higher cure rate (75.3%) than untreated cases (64.8%). Antibiotic treatments that significantly differed from the overall cure rate of 68.0% were: amoxicillin 82.4%; unknown/combined treatments 76.3%; erythromycin 76.2%; cloxacillin 73.6%; pirlimycin 43.8%. Cephapirin, hetacillin, and penicillin did not differ from the mean cure rate or from the untreated cure rate. Agents for which some antibiotics were associated with increased cure rates, compared with no treatment, included Streptococcus agalactiae, streptococci other than Strep ag, and Corynebacterium bovis. The antibiotic most commonly associated with higher cure rates was amoxicillin. Most mastitis agents showed no difference in bacteriologic cure rates in association with any treatment, including no treatment.
Subacute Necrotizing Encephalopathy of Simmental Calves
Authors: Steffen David
Published: March 2023

Neurologic disorders in feedlot cattle are common. These "brainer" cases often occur sporadically and do not warrant diagnostic investigation. The occurrence of this recently recognized neurologic disorder warrants investigations to establish a definite diagnosis when purebred Simmental calves are affected and parentage data may be available. In excess of 30 cases have been confirmed since this disorder was first reported in the USA in 1991.3 Many more cases were reported by owners but no data was available to confirm the diagnosis. Due to its clinical similarity to many currently recognized conditions and lack of familiarity with the disease it likely goes undiagnosed in most feedlots. The disease was first described in Australia in 1989 and Australian cases were clinically and pathologically similar to those reported in North America.2,3,4,5 The American cases have been reported in Oregon, Iowa, Kansas and North Dakota. As diagnostic criteria were well established by 1994, cases may have been diagnosed at other laboratories and not reported to the program.5 Most recent cases were examined in the fall of 1997 indicating the problem persists in North American cattle populations.
Epidemiology of Neospora caninum Infection in Oklahoma Beef and Dairy Cattle
Authors: Lehenbauer Terry W. , Rodgers Sandra J. , Helman R. Gayman , Saliki Jeremiah T.
Published: March 2023

Neospora caninum is a protozoan parasite that is closely related to Toxoplasma gondii and is considered to be an important cause of abortion in cattle, especially dairy cattle. Infection with this parasite may also cause decreased milk production and increased risk of culling for dairy cattle. The complete life cycle of this organism is not known. Two studies were conducted to provide epidemiological information about N. caninum infection in Oklahoma cattle. The presence of specific N. caninum antibodies in sampled cattle sera was determined by using an ELISA test kit. Reported relative operating characteristics for this test were 98.6% sensitivity and 98.9% specificity using a 0.5 sample to positive (SIP) ratio as the assay cutoff to distinguish positive from negative samples.
On Drugs in South Georgia
Authors: Brett Jim
Published: March 2023

Drug usage is an everyday occurrence in livestock units, especially on dairies. Although we stress prevention, management, and other nonmedical intervention to farm problems or diseases, therapeutic drug use is needed. Before I get to the actual practice tip portion of my presentation, I feel I must first step on a few toes.
Evaluation of Doramectin Pour-On Solution for Gastrointestinal Parasite Control in Stocker Calves
Authors: Williams J. C. , Smith L. L. , Skogerboe T. L. , Walstrom D. J. , Cunningham J. M. , Thompson L. , Brake A. C. , Reinemeyer C. R. , Yazwinski T. A.
Published: March 2023

Doramectin pour-on (Dectomax® Pour-On) solution is an endectocide that is highly effective in the treatment of gastrointestinal roundworms, lungworms, grubs, and sucking and biting lice of cattle. Doramectin pour-on solution also has label indications for protection from reinfection (greater than 90% efficacy) of 28 days for Ostertagia ostertagi, Cooperia punctata, and Oesophagostomum radiatum and 21 days for Dictyocaulus viviparus and Cooperia oncophora. To evaluate the field efficacy of doramectin pour-on solution, four studies were conducted with stocker beef cattle treated with doramectin pour-on solution at a dose rate of 500 +g/kg body weight compared to untreated control calves. Locations and durations of these studies were Wisconsin (140 days), Arkansas (82 days), Louisiana (140 days), and Tennessee (141 days).
Beyond the Skin: How African American Women Senior Administrators Describe Their Experiences of Developing an Authentic Leadership Style
Authors: Cook Olivia
Published: March 2023

In this paper, we used a qualitative multiple case study approach. We used the authentic leadership framework (Luthans & Avolio, 2003) to examine how African American women in senior administrator roles, particularly in the president’s cabinet, at a member institution of the Association of Public and Land-Grant Universities (APLU) in Alabama describe their experiences of developing an authentic leadership style. Following previous studies and recommendations for future research (Davis, 2016; Milner, 2006; Pace, 2017; Robinson, 2017; Wiggs-Harris, 2011), the following research question guides this work: How do African American women senior administrators describe their experiences of developing a leadership style? The results of this study revealed six common themes that are related to the authentic leadership style development of African American women. Code-switching was also an interesting element that emerged from some of the interviews, which may impact how some of them may present themselves and are perceived by others. In relation to the findings, theories of authentic leadership and intersectionality are discussed along with suggestions for future research. 
Keywords: African American women, authentic leadership, senior administrator
Invisible Labor for Emerging Women Leaders: A Critical Analysis of Literature in Higher Education
Authors: Norander Stephanie , Zenk Leslie
Published: March 2023

Women faculty often view academic leadership as incompatible with their work-life balance, detracting from research and teaching commitments, resulting in a loss of autonomy and an abandonment of discipline, promoting change in their relationships with colleagues, and placing an increased emphasis on budgeting, regulations and compliance (DeZure et al., 2014).  Many researchers suggest that institutional culture works against leadership development for faculty, making the transition from faculty to administrator unlikely (Barden & Curry, 2013). It is increasingly important to identify the key factors that make the difference for women faculty to assume these roles.  As such, in this study qualitative methods were employed to examine the experiences and career trajectories of 16 academic women who held tenured, fully promoted faculty positions prior to becoming administrators.  The researcher found evidence to support future recruitment and retention in higher education leadership.
Key Challenges and Some Guidance on Using Strong Quantitative Methodology in Education Research
Authors: Henson Robin , Stewart Genéa , Bedford Lee
Published: March 2023

The current article reviews several common areas of focus in quantitative methods with the hope of providing Journal of Urban Mathematics Education (JUME) readers and researchers with some guidance on conducting and reporting quantitative analyses. After providing some background for the discussion, the methodological nature of recent JUME articles is reviewed, followed by commentary on key challenges and recommendations for strong practice in quantitative methodology. The review addresses causal inferences, measurement issues, handling missing data, testing for assumptions, dealing with nested data, and providing evidence for outcomes. Enhanced quantitative training and resources for doctoral students, authors, reviewers, and editors is recommended.
The End or Beginning?
Authors: Capraro Robert M. , Capraro Mary Margaret , Leonard Jacqueline , Lewis Chance , Grant Melva , James Marlon , Mosqueda Eduardo , Young Jamaal , Bicer Ali , Hubert Tarcia , Moldavan Alesia Mickle , Cannon Susan Ophelia , Kwon Hyunkyung , Rugh Michael S. , Chang Jonas
Published: March 2023

This introductory piece to this special issue of the Journal of Urban Mathematics Education discusses important publication information for the journal for the year 2020, such as publication goals, average time to acceptance, and acceptance rates. The editorial team also introduces a new voluntary demographics survey for the journal and discusses the importance of collecting pertinent data for identifying and combating bias in the editorial process.
Racism, Assessment, and Instructional Practices: Implications for Mathematics Teachers of African American Students
Authors: Davis Julius , Martin Danny Bernard
Published: March 2023

Couched within a larger critique of assessment practices and how they are used to stigmatize African American children, the authors examine teachers’ instructional practices in response to demands of increasing test scores. Many mathematics teachers might be unaware of how these test-driven instructional practices can simultaneously reflect well-intentioned motivations and contribute to the oppression of their African American students. The authors further argue that the focus of assessing African American children via comparison to white children reveals underlying institutionally-based racist assumptions about the competencies of African American students. Strategies are suggested for helping teachers resist test-driven instructional practices while promoting excellence and empowerment for African American students in mathematics.
Financial Literacy with Families: Opportunity and Hope
Authors: Baron Lorraine M.
Published: March 2023

In this article, the author explores the link between citizens' quantitative literacy abilities and their financial prosperity. The author applies a robust social justice research vision and a Freirean approach to describe personal flourishing within the context of numerical, mathematical, and financial literacy (NMFL) education. Four families participated in a weekly evening community program that was designed to inform them about NMFLs. Analysis of the interview data showed that participants described a sense of personal flourishing, gained confidence and skills, and felt financially empowered enough to teach and transfer that knowledge to their children. The author proposes a conceptual framework linking personal flourishing with NMFLs, and suggests the framework be used to investigate and describe quantitative literacy and financial literacy in future empowering pedagogies research.
A Framework for Understanding Whiteness in Mathematics Education
Authors: Battey Dan , Leyva Luis A.
Published: March 2023

In this article, the authors provide a framework for understanding whiteness in mathematics education. While whiteness is receiving more attention in the broader education literature, only a handful of scholars address whiteness in mathematics education in any form. This lack of attention to whiteness leaves it invisible and neutral in documenting mathematics as a racialized space. Naming White institutional spaces, as well as the mechanisms that oppress students, can provide those who work in the field of mathematics education with specific ideas about combatting these racist structures. The framework developed and presented here illustrates three dimensions of White institutional space--institutional, labor, and identity--that are intended to support mathematics educators in two ways: (a) systematically documenting how whiteness subjugates historically marginalized students of color and their agency in resisting this oppression, and (b) making visible the ways in which whiteness impacts White students to reproduce racial privilege.
Modeling hadronization using machine learning
Authors: Ilten Philip , Menzo Tony , Youssef Ahmed , Zupan Jure
Published: March 2023

We present the first steps in the development of a new class of
hadronization models utilizing machine learning techniques. We
successfully implement, validate, and train a conditional
sliced-Wasserstein autoencoder to replicate the Pythia generated
kinematic distributions of first-hadron emissions, when the Lund string
model of hadronization implemented in Pythia is restricted to the
emissions of pions only. The trained models are then used to generate
the full hadronization chains, with an IR cutoff energy imposed
externally. The hadron multiplicities and cumulative kinematic
distributions are shown to match the Pythia generated ones. We also
discuss possible future generalizations of our results.
The diagnostic challenges presented in a patient with neuronal ceroid lipofuscinosis type 2
Authors: Belousova E. D. , Mikhaуlova S. V. , Zakharova E. Yu.
Published: March 2023

Neuronal ceroid lipofuscinosis type 2 (NCL2) is a severe, continuously progressive hereditary metabolic disease for which there is an effective enzyme replacement therapy.Purpose. To study the opinions of specialists (pediatric neurologists, neurologists-epileptologists, geneticists) about the obstacles to the early diagnosis of neuronal ceroid lipofuscinosis type 2 in patients.Material and methods. The study was conducted by the method of in-depth interviews. 25 physicians dealing with NCL2 pts took part in the interview.Results. From 2000 to 2021, 45 patients with NCL2 were identified in the Russian Federation. Data on the course of the disease were obtained from 38 patients aged 3 to 11 years, of which 16 received enzyme replacement therapy. At the time of the interview, 32/38 were alive, 4/32 had died, and outcome data for 2 patients were missing. The age of onset of the first symptoms varied significantly: from 1 year 10 months to 3 years 6 months. The median age at which children were diagnosed with NCL2 was 52 months, or 4 years 5 months, but it varied from 12 to 96 months. At the time of diagnosis, in addition to epileptic seizures and delayed speech development, ataxia and loss of motor development, as well as other symptoms, were already noted. EEG was performed in 73% of all cases (with photostimulation only in 34%). MRI at an early stage of the disease was performed in only 40%. Only 46% of patients receive (or have ever received) enzyme replacement therapy. In 41% of cases, enzyme replacement therapy was not prescribed due to the long-term diagnosis of NCL2, which led to a palliative status and refusal of the patients’ parents from therapy.Conclusion. Early diagnosis of NCL2 is difficult due to the non-specificity of the first symptoms, as well as due to the poor awareness of doctors about the disease and the main methods of its diagnosis, which leads to late prescribing of enzyme replacement therapy.
RiskMetrics method for estimating Value at Risk to compare the riskiness of BitCoin and Rand
Authors: Chikobvu Delson , Ndlovu Thabani
Published: March 2023

In this study, the RiskMetrics method is used to estimate Value at Risk for two exchange rates: BitCoin/dollar and the South African Rand/dollar. Value at Risk is used to compare the riskiness of the two currencies. This is to help South Africans and investors understand the risk they are taking by converting their savings/investments to BitCoin instead of the South African currency, the Rand. The Maximum Likelihood Estimation method is used to estimate the parameters of the models. Seven statistical error distributions, namely Normal Distribution, skewed Normal Distribution, Student’s T-Distribution, skewed Student’s T-Distribution, Generalized Error Distribution, skewed Generalized Error Distribution, and the Generalized Hyperbolic Distributions, were considered when modelling and estimating model parameters. Value at Risk estimates suggest that the BitCoin/dollar return averaging 0.035 and 0.055 per dollar invested at 95% and 99%, respectively, is riskier than the Rand/dollar return averaging 0.012 and 0.019 per dollar invested at 95% and 99%, respectively. Using the Kupiec test, RiskMetrics with Generalized Error Distribution (p > 0.07) and skewed Generalized Error Distribution (p > 0.62) gave the best fitting model in the estimation of Value at Risk for BitCoin/dollar and Rand/dollar, respectively. The RiskMetrics approach seems to perform better at higher than lower confidence levels, as evidenced by higher p-values from backtesting using the Kupiec test at 99% than at 95% levels of significance. These findings are also helpful for risk managers in estimating adequate risk-based capital requirements for the two currencies.
LOW-COST AND EASY ACCESS MATERIALS FOR A LABORATORY CLASS: A PROPOSAL OF LIQUID CHROMATOGRAPHY FOR FOOD COLORING SEPARATION AS AN EXPERIENCE OF MEANINGFUL LEARNING
Authors: Cerqueira Bruna , Lima Gerônimo , Mascarenhas Artur , Andrade Heloysa , De Paula Rodrigo
Published: March 2023

The experimental activities for undergraduate chemistry students play an important role to develop skills and expertise in that science thus, the practice-experimental classes are so important to achieve this purpose. This work deals with a demonstrative experience for dye separation from food coloring sample using liquid column chromatography. Beyond the experimental practice and the facility in visualizing the separation, this demonstration shows how a simple experiment involving alternative and easy access materials can promote a meaningful learning once it is possible to handle the acquired data, trace and analyze the results themselves, thus developing skills rather than the operational procedure. This proposal could be implemented in initial chemistry classes in Brazilian universities. Sea and river sands were used as stationary phases and aqueous ethanolic solutions were used as mobile phases. A food coloring (a mixture of 3 dyes) was chosen as sample to be studied. Chromatographic separation was followed by spectrophotometric measurements. A set of analyses were carried out to discuss the solubility of the food coloring, granulometric studies of the stationary phases used and electronic microscopy images of the sands studied here. As alternative materials were used in this work, a chromatographic column was also constructed with low-cost materials.
The Image of Women Figures in Folklore of Kudus Kulon’s Toponyms: A Linguistics Anthropology Study
Authors: Muthia Ratna , Syukur Fatah
Published: March 2023

This study aims to explore the image of women figures in folklore relating to the naming of a place (toponym) in the Kudus Kulon area. This study was carried out with a linguistic anthropology approach, which focuses on language as a set of symbolic resources that enter the constitution or social and individual representations in the real world. The results of this study are as follows: 1) the origin of the toponym, i.e. the name and the activity of the women figures; 2) the role of women figures, consisting of the main and side characters; 3) the relation between female and male figures in toponym can be divided into two: (a) women figures representing the husband and (b) wo­men figures representing themselves; 4) opportunities for women figures, including opportunities to solve problems, oppor­tunities to move according to their interests, and oppor­tunities to participate in public roles; 5) influences of women figur­es, including influences on spirituality, influences on eco­nomic activities, and influences on culture.
The Social Aspects of Gender-responsiveness in Schools
Authors: Wigati Indah
Published: March 2023

Schools are strategic institutions to fight for gender equality. There is one school in South Sumatera that applies the concept of gender, namely SMA 2 Sekayu. This study aims to analyze the social aspects of gender-responsiveness in schools. The approach used is descriptive qualitative phenomenological. The informants consisted of school principals, teachers, students, school committees, and education staff. Data were collected through observation, interviews, documentation and analyzed using an interactive model of analysis consisting of reduction, presentation, and verification. Meanwhile, the social aspects of gender-responsiveness were analyzed through Longwe. The results showed that the implementation of gender-oriented schools on social aspects involved women and men of the school committee. Teachers' and parents’ interactions run well. The school had a puberty management forum for male and female students. The interaction of all school members is in accordance with the concepts of gender equality. But the teacher did not yet have the ability to control and detect sexual harassment against students. To realize gender-responsiveness, all components in the school must have gender sensitivity.
Comparative Analysis of the Most Frequent Verbs and Their Derivatives in the Text of the Qur’ān and Modern Standard Arabic
Authors:   St. Petersburg State University, Bernikova Olga A. , Redkin Oleg I. ,   St. Petersburg State University
Published: March 2023

In the current paper basing on the available online resources the morphology and semantics in the Qur’ān as well as the distribution of morphological models in suras and their role in depicting basic ideas of the sacred text are analyzed. Every stage of the study of the Qur’ān requires appropriate approaches and often unparalleled solutions as well as new research tools. The study of the peculiarities of the Qur’ānic text in some cases is possible only with the use of the methods of the interdisciplinary research, both traditional ones as well as newly emerging digital technologies. The current research is a continuation of the earlier works of the authors which address the quantitative analysis of the morphology of the language of the Qur’ān. The indicators obtained earlier are compared with the new results about frequency of masdars and participles of the derived forms in the sacred text. The results of a comparative analysis are illustrated by graphs and diagrams. In this research authors analyze the development of the vocabulary of the Arabic language in diachrony on the basis of various thematic corpuses of texts. As an object of the corpus research the most frequent 15 verbs in derivatives in the text of the Qur’ān are considered. Using the Arabic language corpus, the frequency of these lexemes, as well as in subsections related to the media and Islamic discourse, is analyzed. The results of this research allow to take a new look at the verbal morphology of the sacred text of the Qur’an as well as to set new goals and research objectives.
Shaman Motive in Korean Literature
Authors:   HSE University, Lee San Yun
Published: March 2023

This paper analyzes literary works that allow one to trace the changes in the perception of shaman cult in various periods of Korean social development and sheds light on the popularity of shaman motive in the 21st century. In Kim Tonni’s “Portrait of a shaman” (1936), the conflict between traditional and Western beliefs is shown through the image of a shaman woman symbolizing the ignorant Korean past and her son who converted to Christianity. Han Seungwon in his novels, uses the motive of the call for blood of those people possessed by ghosts and describes shamans’ life, traditions, and rituals. Shaman rituals are also described in the works of Park Wanseo. In her childhood memories, shaman women are depicted as transcendental beings tied to the other world. Epic novels by Park Kyongni, Cho Chongnae, Choi Myunghee describe the life of ordinary villagers against the backdrop of historical events. The main character is usually a shaman or her daughter in a love relationship. Shaman motive is also present in some novels written in the 21st century, in which main characters believe in spirits and shamans’ prophecies coming true. This implies that the belief in spirits is an inseparable part of Korean cultural identification, even for those who claim to be an atheist. Because shamanism in Korea is perceived as an important part of culture, the interest in shamans and shamanism continues to grow.
Images of British Bangladeshis and the Ethno-cultural Space of London in Modern British Novels on the Example of the Works of Zadie Smith and Tarquin Hall
Authors:   Peter the Great Museum of Anthropology and Ethnography (Kunstkamera) of the Russian Academy of Sciences, Merenkova Olga N.
Published: March 2023

The actual theme of the British novel of the beginning of the 21st century becomes an intensively changing urban multicultural space of London, as well as its inhabitants. The ethnic heterogeneity of London is enhanced by the residence of various national communities there. One of the most notable groups is British Bangladeshis. The article analyzes two works: White Teeth by Zadie Smith (2000) and Salam, Brick Lane: A Year in the New East End by Tarquin Hall (2005). These novels were written almost at the same time, but London and its realities are presented in them from different angles. The authors manage to weave a complex web of life histories of migrant families, sometimes spanning more than one generation. Narratives focus on British Bangladeshis, Jamaicans, Polish Jews, refugees from Afghanistan and other ethnic groups living in London, in particular the East End. The novels deal with the acute problems of migrants’ adaptation in British society, as well as the difficulties of perceiving and preserving the cultural heritage of their ancestors in their children who are educated in British schools and learn the behaviors of their English peers, which is a tragedy for their more conservative parents. On the basis of real stories, these works present a picture of a motley urban population and how, according to the ideas and personal experience of the authors, representatives of various groups of British society live and interact with each other: the so-called “native Englishmen”, “descendants of former migrants”, representatives of ethnic minorities, people from former colonies, etc.
Effects of COVID-19 Pandemic on Young Individuals - A Mini Review
Authors: Susarla Rohan Rishabh , Eldin Rania Zein , Coelho Ritika
Published: March 2023

Background:

The COVID-19 pandemic has dominated the last two years of the life of young individuals from every aspect. Medical illness associated with COVID-19 is only one element of the detrimental impact that it has had. The psychological, educational, and social aspects of young individuals have been affected with potentially far-reaching effects. The aim of this review is to determine the negative impact of COVID-19 in each of these areas and inform future practices or policies on the management of young individuals impacted by COVID-19 or future pandemics of this magnitude.

Methods:

We have collated and analyzed data available on the psychosocial, educational, and social aspects of young individuals in an attempt to understand the negative impact of COVID-19 on this group. Data were collected from an extensive Medline search of relevant articles relating to the effect of COVID-19 on individuals less than eighteen years.

Results:

Our results show that although young individuals experienced a milder form of COVID-19 in the pandemic, conditions, such as anxiety, depression, and loss of routine, have caused considerable comorbidities in this population. Young individuals have also experienced a greater rise in obesity and a higher incidence of myopia. A key finding of this review showed that children with special needs experienced a lack of continuity of care. Additionally, distant and digital learning presented challenges for children from different backgrounds. Concerns regarding wider issues, such as finance, have also directly impacted young individuals. Vaccination for COVID-19 among children has also raised important ethical issues.

Conclusion:

COVID-19 has negatively impacted the psychological, physical, and emotional needs of young individuals with potentially far-reaching consequences. A combined psychosocial and clinical approach to tackling the specific needs of young individuals is essential to support the needs and management of individuals affected by the pandemic. The findings of our review recommend measures to include balancing screen time with outdoor activity and encouraging the continued education of children regarding good health practices and vaccination in particular. We hope that this will inform future practices or policies on the management of young individuals impacted by COVID-19 or future pandemics of this magnitude.
The Effect of Synthetic Curcumin Analogues on Obesity, Diabetes
and Cardiovascular Disease: A Literature Review
Authors: Lavian Salime , Mardaneh Pegah , Bagherniya Mohammad , Emami Seyed Ahmad , Butler Alexandra E. , Sahebkar Amirhossein
Published: March 2023

Obesity, as an unfavorable consequence of our modern lifestyle, can promote
the emergence of other disorders, like diabetes and cardiovascular disease, that negatively
impact quality of life. Therefore, prevention and treatment of obesity and its related comorbidities
are critical. Lifestyle modification is the first and most important step but, in
practical terms, presents a major challenge to many patients. So, the development of new
strategies and therapies is critical for these patients. Although herbal bioactive compounds
have recently gained attention for their ability to prevent and treat conditions related
to obesity, no ideal pharmacological treatment has been found to treat obesity. Curcumin,
one of the compounds extracted from turmeric, is a well-studied active herbal extract;
however, its poor bioavailability and solubility in water, instability against temperature,
light and pH fluctuations and rapid excretion limit its therapeutic application. Curcumin
modification can, however, provide novel analogues with better performance and
fewer disadvantages in comparison to the original structure. In the past few years, the positive
effects of synthetic analogues of curcumin for the treatment of obesity, diabetes and
cardiovascular disorders have been reported. In this review, we evaluate the strengths
and weaknesses of the reported artificial derivatives and assess their practicality as therapeutic
agents.
Design, Synthesis and In vitro Screening of Novel 2-Mercaptobenzothiazole-
Clubbed Phenylacetamides as Potential Antibacterial Agents
Authors: Gurram Swarupa Rani , Azam Mohammed Afzal , Palathoti Nagarjuna
Published: March 2023

Background:

The frightening rise of bacterial resistance is occurring worldwide and endangering
the efficacy of antibiotics. Hence, the development of novel and potent antibacterial is a need of the
day.

Objective:

In this study, we designed and synthesized compounds C1-C11. These compounds are characterized
by their FT-IR, NMR and MS spectral data and examined in vitro for their antibacterial activity.

Methods:

Compounds C1-C11 were synthesized by reacting 2-mercaptobenzothiazole with appropriate
chloroacetamide in the presence of anhydrous potassium carbonate and dry acetone at room temperature.
To assess the antibacterial activity, minimum inhibitory and minimum bactericidal concentrations were
examined by broth microdilution method against the selected strains of both Gram-positive and Gramnegative
bacteria. Time-kill kinetics study was also performed as per CLSI guidelines.

Results:

Compounds C6 and C7 displayed promising activity against Staphylococcus aureus ATCC
43300 with MICs of 9.43 and 7.73 μM, respectively. These two compounds also displayed promising
antibacterial activity against S. aureus 5021 with MIC values of 7.53 and 9.68 μM, respectively. In MBC
determination, these two compounds (tested in the concentration range of 7.53 to 262.3 μM) displayed
bactericidal activity against methicillin resistant S. aureus ATCC 43300, S. aureus NCIM 5021 and S.
aureus NCIM 5022. In time-kill kinetics study, compounds C6 and C7 also exhibited bactericidal activity
against S. aureus NCIM 5021 and S. aureus ATCC 43300 after 12 h of exposure. In general, all tested
compounds exhibited poor activity against Mycobacterium sp. NCIM 2984 and also against tested Gramnegative
bacteria Klebsiella pneumoniae NCIM 2706, Escherichia coli NCIM 2065 and Pseudomonas
aeruginosa NCIM 2036. Further, computed ADMET properties of C1-C11 showed a favourable pharmacokinetic
profile with zero violation of Lipinski’s rule of five.

Conclusion:

The result showed that in phenylacetamides C6 and C7 presence of phenyl ring substituted
with -CF3 group is responsible for their high antibacterial activity against S. aureus ATCC 43300 (MICs,
9.43 and 7.73 μM, respectively). These two compounds also exhibited bactericidal activity respectively
against S. aureus NCIM 5021 in time kill kinetics study.
Role of Commuting Time on Explaining Gender Wage Gap in Indonesia
Authors:   University of Indonesia, Shandy Paramayudha Biyan
Published: March 2023

Purpose This research aims to identify the role of commuting time on explaining gender wage gap in Indonesia Design/methodology/approach Using dataset from National Labor Survey (Sakernas) 2019, this research estimated 33.6% wage gap between men and women. Findings The inclusion of commuting characteristics showed an increase of explained gender wage gap proportion from 14.2% to 22.6%. The commuting time variable contributes to 14.6% of the explained wage gap. Research limitations/implications From the results it can be identified that the increase of women’s commuting time has the potential to reduce gender wage gap in Indonesia. Originality/value Gender wage gap is a labor market discrimination issue that persists worldwide, including Indonesia. Previous researches pointed out that the gender wage gap in Indonesia is mainly composed of parts unexplained by demographic, human capital, and job characteristics. While the commuting characteristics have the potential to explain more of the gender wage gap, it is still underexplored in Indonesia.
Knowledge and Attitudes Towards Child Abuse and Neglect Among Dental Students from North Macedonia
Authors: Ambarkova Vesna , Gavic Lidia , Ivanovski Kiro , Apostolska Sonja , Karakamcev Tomo , Demiri Elma , Ambarkov Jovan
Published: March 2023

Introduction. Signs of child abuse and neglect are often found in the orofacial region and, therefore, it is very important for dental students, as future dentists, to recognize and report them.

The aim of the study was to investigate the knowledge and attitudes towards child abuse and neglect among dental students.

Material and Methods. The study was performed at the Faculty of Dental Medicine, Saints Cyril and Methodius University, among all dental students of the six-year undergraduate dental programme. The data were collected between January and February 2022 using a Google Form and shared via available social media platforms. The definition of physical indicators of abuse, awareness regarding legal and ethical issues, students’ experience of child abuse recognition were evaluated by a questionnaire.

Results. The questionnaire completion rate was 70%. As many as 20.86% of dental students very rarely received training on recognizing and reporting child abuse and neglect; 79.75% of dental students had never received any information about child abuse during their university education; about 91.41% of students wanted to receive more knowledge about child abuse and neglect. No differences were observed in terms of gender and year of study.

Conclusions. Dental students in North Macedonia are not sufficiently prepared for their role in diagnosing suspected cases of child abuse. An educational program about diagnosing, reporting, and preventing child abuse and neglect should be involved in the curriculum of undergraduate students from North Macedonia.
The values of the rebo wekasan tradition as a source of social studies learning
Authors: Nurjaman Zamzam , Widyanti Triani , Suherman Ade , Mulyana Eldi
Published: March 2023

Environmental-based education at this time has a very important meaning in building students' character, with social studies learning resources that can be used as a medium to internalize the traditional values that exist in the student environment. An educator must also better understand and master the tradition. This study aims to build student character and expand environmental-based social studies learning resources by introducing the values of the rebo wekasan tradition in the learner's environment. This research method is qualitative with interview data collection techniques on community leaders in Singajaya District. The results of this study are the values contained in the rebo wekasan tradition, namely (1) religious values, attitudes closer to God, and tolerant of people with different beliefs; (2) the value of sharing or social care, in the rebo wekasan tradition, the community is required to pray or share with fellow humans even though people have different beliefs; (3) cultural values, the Rebo Wekasan tradition has culture and traditions that are believed by Muslims who carry out various traditions such as drinking isim water, eating dupi (ketupat wrapped in bamboo leaves); and (4) historical value, in the implementation of the rebo wekasan tradition, historical values are always instilled in the congregation to provide positive values from various historical deviations in the rebo wekasan situation.
Analysis of character education content in 2013 social studies curriculum text books
Authors: Rahmasari Kurnia , Sapriya Sapriya , Kurniawati Yeni
Published: March 2023

Character education is the basis for forming a nation's quality character that does not ignore social values. This study aimed to determine the content of character education in the 2013 Curriculum Social Studies textbook. The method in this research is narrative content analysis with a qualitative approach. The data collection techniques used were documentation studies, text analysis of the social studies lesson in the 2013 curriculum for class VIII, and an interview with one of the social studies teachers who used this textbook. The research results obtained include: (1) The content of character education in the revised edition of the 2017 social studies subject textbook has been adjusted to the Regulation of the Minister of Education and Culture Number 20 of 2018 concerning Strengthening Character Education (PPK); (2) In the revised edition of the 2017 Social Studies textbook issued by the Ministry of Education and Culture, there are eight values in character education, namely religious, honest, disciplined, responsible, mutual cooperation, polite, tolerance, and trust self; and (3) Based on the results of the character load table that has been explained, it can be seen that there are 18 sentences that imply indicators of several character values and six sentences that explicitly contain several character values.
Analysis of learning motivation in improving learning outcomes in economics subjects between students of class XI social sciences and class XI natural sciences
Authors: Wibowo Damaris Iqdam , Saputri Dela Refi Novi , Mutmainah Dwi , Yusida Ermita , Sarmi Sarmi
Published: March 2023

Learning motivation is one of the things that significantly affect student success in learning activities. The learning process that needs to be followed by learning motivation from students will cause the learning objectives to be achieved to be less than optimal. This study aims to determine the difference in learning motivation in improving economic learning outcomes between class XI students majoring in mathematics and social studies at Senior High School (SMA) Negeri Malang for the 2021/2022 academic year. The population of this study was 192 class XI students spread across six classes, namely five classes from the social studies department and 1 class from the mathematics department. Sampling using nonprobability sampling techniques for as many as 60 students. The research hypothesis is that there are differences in learning motivation in improving learning outcomes in economics subjects between students majoring in mathematics and social studies majors at SMA Negeri 6 Malang for the 2021/2022 school year. Data collection is carried out using questionnaires. This research is a comparative study. The data were analyzed using descriptive statistical analysis techniques. The study's descriptive analysis results showed that the average score of the learning motivation questionnaire survey results showed a difference in values of 0.53. Meanwhile, the average score of student learning outcomes shows a difference in grades of 0.5. Based on the results of this study, it can be concluded that the hypothesis is accepted, which means that there are differences in learning motivation in economics between students majoring in mathematics and social studies majors at SMA Negeri 6 Malang for the 2021/2022 academic year.
Quasi-experimental study of the effect of the snowball-throwing learning model on learning outcomes in social studies subjects
Authors: Nurahmi Agisna Putri , Mulayana Eldi
Published: March 2023

Social studies subjects are often considered boring, saturated, and monotonous. This affects students' learning outcomes, so we need a method that can increase students' interest in learning social studies subjects. This study aims to compare student learning outcomes before the application of the snowball-throwing learning model and after the implementation of the snowball-throwing learning model, as well as its effect on student learning outcomes. The research method used in this study is a quasi-experimental design with no equivalent groups pretest-posttest design. The population in this study were Class VIII students at SMPN 1 Semarang. The random sampling technique (Probability sampling) has been applied in this research. The sample of this study consisted of classes, namely the Experimental and Control classes, which were selected from existing classes. The experimental class was class VIII I, which applied the snowball-throwing learning model, while the control class was class VIII J which applied the conventional learning model. The results of this study are that students' learning outcomes in social studies subjects before implementing the snowball-throwing model tended to be lower. In contrast, students' learning outcomes became higher after the snowball-throwing model's implementation. The conclusion is that the snowball-throwing learning model has an effect and can improve the learning outcomes of class VIII students in social studies subjects.
The effect of intensity of MGMP activities, school climate, and work commitments on the professionalism of economics high school teachers
Authors: Pangestika Ratna Rosita , Setiawan Risky
Published: March 2023

This study aims to determine the effect of the intensity of MGMP activities, school climate, and teacher work commitment on the professionalism of high school teachers in Economics in the City of Yogyakarta. This research is an ex-post facto research with a quantitative approach. This research is a population study, where the research subjects were all high school economics teachers in Yogyakarta, where the technique of collecting subjects used was saturated sampling. Data were obtained by non-test through questionnaires, interviews, and documentation. Validity testing is done by Expert Judgment and Confirmatory Factor Analysis (CFA). Reliability testing uses Cronbach's Alpha (α). Data analysis using multiple regression statistical techniques. The results showed that the intensity of MGMP activities had an effect on teacher professionalism with an R-squared value of 14.2%, school climate had an impact on teacher professionalism with an R-squared value of 28%, and work commitment had an effect on teacher professionalism with an R squared value of 9.3%.
Фотокаталитические свойства в видимой области света композиционных микрочастиц Тi/TiN/TiO-=SUB=-2-=/SUB=-, полученных электродуговым синтезом
Authors: Гаджиев М.Х. , Оруджев Ф.Ф. , Муслимов А.Э. , Ильичев М.В.
Published: March 2023

Method of electric arc synthesis of composite microparticles metal-semiconductor-dielectric based on titanium, titanium nitride and rutile with productivity up to 10 g/min is proposed. Using diffraction and microscopic methods, the morphology and structural-phase composition of the synthesized microparticles were studied. Using the example of methylene blue degradation, the photocatalytic activity of synthesized microparticles in the visible radiation range was demonstrated and its possible mechanism was proposed.
Компьютерная резонансная динамика молекулы глицина в электрическом поле инфракрасного диапазона
Authors: Непомнящая Э.К. , Баранов М.А. , Цыбин О.Ю.
Published: March 2023

The supercomputer software-computer complex of molecular dynamics is supplemented with an external alternating electric field.
Along with nonresonant influences, the mode of resonant excitation of normal vibration modes in the molecules of the amino acid glycine was studied when an electric field was set in the form of a symmetrical meander in the IR frequency range.
The technique expands the possibilities of studying the structure, dynamics, and functions of biomolecules, as well as methods for developing hybrid micro and nanoelectronic devices.
Исследование влияния направления набегающего потока по отношению к плоскости трехцилиндрового ротора на аэродинамические коэффициенты
Authors: Тлеубергенова А.Ж. , Танашева Н.К. , Шаймерденова К.М. , Дюсембаева А.Н. , Сатыбалдин А.Ж.
Published: March 2023

Experiments have been carried out to study the influence of the direction of the incoming flow relative to the rotor plane on the values of the drag coefficient of a multi-blade rotor layout with power elements in the form of rotating cylinders of variable cross-section. It is shown that the drag force of the multipath depends on the Reynolds number, and practically remains constant in the range of Reynolds numbers. 16•104-50•104 .According to the results of a series of experimental data, the dependences of the thrust coefficient of the multipath rotor on the Reynolds number and the installation angle of the airflow were also calculated and constructed. It is established that the coefficient of thrust of the rotor decreases with an increase in the Reynolds number.
Poda de formación
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: March 2023

En este clip tecnológico verá cómo la poda permite a los arbustos ayudar a formarse mejor, y así mismo, permite un mejor aprovechamiento por parte del ganado.
Riego en ají
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia)
Published: March 2023

El riego es una etapa importante durante el crecimiento de cualquier cultivo, el exceso o escasez de agua reducen el crecimiento de la plantación. Para el cultivo de ají, tenga en cuenta las siguientes recomendaciones tecnológicas.
Riego en cítricos
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación colombiana de investigación agropecuaria, Mosquera (Colombia)
Published: March 2023

En este clip tecnológico se muestran los pasos a tener en cuenta para un buen manejo de riego en cítricos, los cuales necesitan entre 1.000 y 1.200 metros de agua al año.
Preparación del suelo para ajo
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación colombiana de investigación agropecuaria, Mosquera (Colombia)
Published: March 2023

En este clip tecnológico se presenta la forma correcta de preparar el suelo para la siembra de ajo, cultivo exigente en cuanto a la preparación del suelo.