Lower Class Research Articles

Potential benefits of aortic valve opening in patients with left ventricular assist devices.

Aortic regurgitation (AR) is a well-known cause of impaired outcome in patients with centrifugal left ventricular assist devices (cfLVADs). The failure of the aortic valve (AV) to open at least intermittently is associated with cusp remodeling, commissural fusion, and ultimately developing AR. Our aim was to characterize patients in whom AV opening (AVO) was preserved 6 months after implantation and identify determinants related to it. We conducted standardized echocardiography and collected clinical and laboratory tests at the outpatient clinic 6 months after implantation. We classified patients into those showing intermittently opening of the AV, every 2-3 beats, or in every cycle (AVO) and those whose AV was continuously closed (NAVO). From the 219 cfLVAD implanted in our center between March 2018 and January 2020, 156 subjects were alive and on the device after 6 months. In 2 of the reviewed echocardiograms, we could not evaluate the AV. 99 patients (64%) showed AVO compared to 55 (36%) with NAVO. The first presented higher mean arterial pressure (84 ± 10 vs. 77 ± 13 mm Hg, p = 0.002), larger LV end-diastolic diameter (LVEDD 57.5 ± 12 vs. 52.7 ± 13 mm, p = 0.022), a better TAPSE (15 ± 4 vs. 13 ± 4 mm, p = 0.028), and less frequently significant AR than patients with NAVO (moderate/severe AR in 6% vs. in 20%, p = 0.042). In a multiple logistic regression, a lower NYHA Class, a larger LVEDD, and a better LV ejection fraction appeared as significant predictors of AVO. After a median follow-up of 3.2 years, we found no significant impact on survival stratifying patients by AVO (log-rank p = 0.53). AVO was associated with better RV function, lower NYHA Class, and a lower rate of significant AR. This could indicate that AVO should be pursued in LVAD patients.

Co-expression of multiple transcription factors is associated with clinical features and endocrine prognosis in growth hormone-secreting pituitary adenomas.

The types of growth hormone-secreting pituitary adenomas are diverse, we have found that there are significant differences in clinical features and prognosis between PIT-1 single-cell spectrum growth hormone adenomas and growth hormone phenotypic polyhormonal adenomas. This study examined a cohort of 193 patients with growth hormone-secreting pituitary adenoma (GHPA), stratifying them into two groups: PIT-1 single transcription factor positive growth hormone adenoma (STF-GHPA) and Multiple transcription factor-positive growth hormone-secreting adenomas (MTF-GHPA). The objective was to compare these two groups' clinical characteristics. Within the MTF-GHPA group, we further subtyped them based on transcription factors to evaluate potential variations in clinical manifestations. Logistic regression analyses were employed to develop a risk factor model for investigating factors influencing hormone remission. There were no statistically significant differences in terms of age, gender, serum GH, and IGF-1 levels between patients diagnosed with MTF-GHPA and STF-GHPA. However, patients with MTF-GHPA exhibited a higher proportion of hypopituitarism compared to those with STF-GHPA. Furthermore, MTF-GHPA were characterized by smaller tumor size and less invasiveness, as indicated by lower Knosp classes. However, patients with MTF-GHPA have a lower rate of hormonal remission (30.8%) and more postoperative complications (31.0%), which means that STF-GHPA (hormonal remission:71.6%; postoperative complications:13.4%) has a better endocrine outcome than MTF-GHPA patients. Between the PIT-1 + SF-1+ and PIT-1 + TPIT+ subtypes within MTF-GHPA, significant differences were also observed in tumor size, endocrine outcomes, and postoperative complications. Risk factors influencing hormonal remission for GHPA included preoperative GH level, primary/recurrent, extent of resection, and transcription factor expression. Co-expression of multiple transcription factors is an important factor associated with clinical behavior and endocrine outcomes in patients with GHPA.

Bezwolna i okrutna – konstruowanie obrazu kobiety i kobiecości przez użytkowników hasztagu „przegryw” na portalu Wykop.pl

The article is based on an analysis of content posted by selected users of the Wykop.pl website under the hashtag “loser”. This hashtag gathers young heterosexual men who consider themselves unfi t for society and losers in life. The biggest source of their frustration is the non-existence of their sex life – they cannot fi nd female partners for sexual or romantic relationships despite their clear desire to do so. The “losers” (as they call themselves) make the lack of a woman the main axis of their identity, therefore this text focuses on how her character is constructed and how she acts with the diff erent types (“alpha male”, “beta ATM”, “loser”) into which users divide men. The “losers” (as they call themselves) make the lack of a woman the main axis of their identity, therefore this text focuses on how her character is constructed and how she ranks against the diff erent types (“alpha male”, “beta ATM”, “loser”) into which users divide men. The analysis also focuses on the nature of the pseudo-biological language used on hashtags and how their narratives make visible their perceived repulsion towards women. Attention was also paid to issues of lower class membership in users’ statements, which may indicate that this membership is the source of the social movement of losers and their aspirations for conservative revolution. Ruth Wodak’s critical discourse analysis was the main tool used to conduct the analysis.

As you wish? Public preferences for models of representation and MPs’ role orientations

AbstractHow much autonomy elected representatives should have in looking after the interests of their constituents is a central question of democratic theory. While much research has been conducted on the representational roles adopted by elected representatives, we currently lack an understanding of citizens’ preferences for contrasting models of representation, more specifically whether they believe representatives should primarily act as instructed delegates, closely following public opinion or rather as trustees, relying on their own convictions and judgement. As a result, we know relatively little about how congruent citizens’ and politicians’ representational preferences are, whether some subgroups of citizens and politicians are more congruent with each other than others and whether citizens’ and politicians’ representational preferences are driven by the same determinants. Using data from 13 countries, we assess the level of congruence between voters’ and MPs’ preferences in representational style. In all countries, citizens favouring delegate‐style MPs are poorly represented as the vast majority of representatives display a moderate to strong preference for trusteeship. Analysing subgroups of politicians and citizens according to party family, ideology, inclusion in government, populism and social class reveals that MPs from left‐wing or right‐wing radical and populist parties, representatives sitting on the opposition benches and those belonging to lower classes tend to hold representational preferences that are more in line with the preferences of their own supporters or individuals belonging to the same group as themselves, but also with those of the entire electorate. However, even among these politicians there are few delegates. Examining whether citizens’ and politicians’ representational preferences are driven by similar determinants, we assessed the influence of their ideological orientations, socioeconomic status and support for (or affiliation with) a party in government on their representational preferences. For citizens, our results indicate that locating oneself on the right of the ideological spectrum is related to higher scores on the delegate–trustee scale, while supporting a populist party seems to decrease voters’ favourability toward trusteeship. Politicians’ preferences could not be explained by similar factors as none of the tested factors were significant. In line with our congruence analysis, there seems to be little variation in MPs’ representational preferences. Even groups of MPs that can be thought of as most likely to be delegates turn out to be staunch trustees, potentially causing frustration among citizens preferring delegate‐style representation.

The visual construction of the people’s country and the Chinese nation: political aesthetics in the Ethno-documentaries of New China

This paper discusses the political positioning of the people and the cultural image of the Chinese nation through the lens of the Social-historical Scientific Documentary Films of China’s ethnic minorities (hereafter referred to as “the Ethno-documentaries”) by restoring the problem to the site of the investigation of humanities and social sciences and the General Surveys on (Folk) Arts in the early years of the establishment of the People’s Republic of China in the 1950s. Through detailed analysis of specific Ethno-documentary films, this paper explores how the social sciences conducted its “Social and Historical Investigation of China’s Ethnic Minorities” via the medium of film to convey the advanced social concepts and ideological work of the new regime through the historical narrative of art and politics. This study highlights three key points. First, the “Chinese nation” as a modern political concept dates its origins back to the 1920s with the emergence of the “National Heritage Reorganization Movement” and the “Doubting Antiquity School.” However, it was only through the medium of the Ethno-documentaries that this concept was visually and aurally represented in films for the first time, which draws our attention to the fact that the entry point for understanding modern China lies in discerning the relationship between culture and politics. Second, when discussing the relationship between culture and politics, this study juxtaposes the Ethno-documentaries and “art for workers-peasants-soldiers,” which developed during the same period. These two forms of art focus respectively on national history and the suffering of the lower classes of society, and it is this intertextual nature of the historical narrative that jointly anchors the cultural and historical view of New China. Lastly, historical view is the core of the humanities, social sciences, and art disciplines in New China. Previous studies have mainly attributed certain phenomena to the “politicization” or “pan-politicization” of a particular historical period due to disciplinary barriers and cultural trauma and have stopped discussing such topics in depth. In contrast, the significance of the political aesthetics in the Ethno-documentaries is to have transformed classical Chinese artistic language into a modern one to represent the Chinese people and the Chinese nation. It also raises a question of re-sinicization of many modern political issues that have persisted until now: How do today’s Chinese art works vividly depict the prosperity of this country and its hardworking and courageous people?

Grapevines grown from canes having spent 10 months in space: study of their downy mildew susceptibility

The control of plant diseases represents a significant challenge in agriculture, particularly with the current emphasis on reducing pesticide use, necessitating alternative approaches. Among them, resistant plant breeding programs offer a promising alternative. Considering the stressful conditions in space, space conditions emerge as an innovative method for advancing crop improvement. This study explored the unique potential of the International Space Station (ISS) environment to induce beneficial modifications in grapevine, resulting in plants with reduced susceptibility to diseases. Canes of two Vitis vinifera L. cultivars, Cabernet Sauvignon (CS) and Merlot (Me), have undergone a 10-month space journey on-board the ISS, while others stayed on Earth (Ground Control, GC). We conducted a 2-year analysis of the response to downy mildew (Plasmopara viticola) of plants developed from ISS and GC canes, called Mother plants. The disease development of progenies produced from Merlot Mother plants was also evaluated. A higher proportion of individuals with low-susceptibility was noted in the ISS Mother group compared to the controls for both cultivars. This trend was also observed for the Merlot progenies. Finally, 11% of Merlot individuals (Mother and progenies, and for the 2 years of study) were distributed in the low susceptibility class. This study suggests that grapevine canes exposure to ISS conditions resulted in an enhanced percentage of plants showing reduction of susceptibility to downy mildew.

Combining ERAP1 silencing and entinostat therapy to overcome resistance to cancer immunotherapy in neuroblastoma

BackgroundCheckpoint immunotherapy unleashes tumor control by T cells, but it is undermined in non-immunogenic tumors, e.g. with low MHC class I expression and low neoantigen burden, such as neuroblastoma (NB). Endoplasmic reticulum aminopeptidase 1 (ERAP1) is an enzyme that trims peptides before loading on MHC class I molecules. Inhibition of ERAP1 results in the generation of new antigens able of inducing potent anti-tumor immune responses. Here, we identify a novel non-toxic combinatorial strategy based on genetic inhibition of ERAP1 and administration of the HDAC inhibitor (HDACi) entinostat that increase the immunogenicity of NB, making it responsive to PD-1 therapy.MethodsCRISPR/Cas9-mediated gene editing was used to knockout (KO) the ERAP1 gene in 9464D NB cells derived from spontaneous tumors of TH-MYCN transgenic mice. The expression of MHC class I and PD-L1 was evaluated by flow cytometry (FC). The immunopeptidome of these cells was studied by mass spectrometry. Cocultures of splenocytes derived from 9464D bearing mice and tumor cells allowed the assessment of the effect of ERAP1 inhibition on the secretion of inflammatory cytokines and activation and migration of immune cells towards ERAP1 KO cells by FC. Tumor cell killing was evaluated by Caspase 3/7 assay and flow cytometry analysis. The effect of ERAP1 inhibition on the immune content of tumors was analyzed by FC, immunohistochemistry and multiple immunofluorescence.ResultsWe found that inhibition of ERAP1 makes 9464D cells more susceptible to immune cell-mediated killing by increasing both the recall and activation of CD4+ and CD8+ T cells and NK cells. Treatment with entinostat induces the expression of MHC class I and PD-L1 molecules in 9464D both in vitro and in vivo. This results in pronounced changes in the immunopeptidome induced by ERAP1 inhibition, but also restrains the growth of ERAP1 KO tumors in vivo by remodelling the tumor-infiltrating T-cell compartment. Interestingly, the absence of ERAP1 in combination with entinostat and PD-1 blockade overcomes resistance to PD-1 immunotherapy and increases host survival.ConclusionsThese findings demonstrate that ERAP1 inhibition combined with HDACi entinostat treatment and PD-1 blockade remodels the immune landscape of a non-immunogenic tumor such as NB, making it responsive to checkpoint immunotherapy.

Evaluation of the Mechanical Behavior of Asphaltic Mixtures Utilizing Waste of the Processing of Iron Ore

Mineral extraction is an important operation for the economy of different countries and generates millions of tons of mining waste. In this context, and in association with the high demand for paving aggregates and the lack of raw materials for this purpose, the feasibility of using iron ore processing waste has emerged as a promising alternative. This study evaluates the physical and mechanical behavior of asphalt mixtures incorporating waste from the company Samarco S.A., collected in Mariana-MG, to replace the fine aggregate in asphalt concrete mixtures, with a view to applications in the bearing layer of local traffic roads. Two mixtures, M2 and M3, containing 20% and 17% waste, respectively, were formulated and analyzed, compared to a reference mixture, M1. Evaluations were carried out using the Marshall method parameters, mechanical tests of resilience modulus, and fatigue life under controlled tension, as well as mechanistic analysis. Brazilian mechanistic–empirical design software (MeDiNa—v 1.5.0) contributed to this analysis. This analysis revealed that, for a traffic level of N = 5 × 106 (average traffic) on a local road, pavements containing the M1 and M3 mixtures had the same layer thicknesses (6.9 cm), as well as the same fatigue class, equal to 1. The pavement with the M2 mixture had the thickest asphalt layer (8.2 cm) and a lower fatigue class equal to 0. But if compared in terms of the percentage of cracked area over 10 years, it still offers ideal performance conditions compared to the M1 and M3 mixes. Thus, it can be considered feasible to replace fine aggregate with iron ore waste in asphalt concrete for use on local roads in the region without altering the bearing capacity of the pavement.

The price of inequality: How state tax policies widen the wealth gap

State taxation has become particularly regressive in recent decades. Across the country, states have increasingly begun to rely on sales and consumption taxes to fund significant portions of their expenditures. Given that these taxes disproportionately hurt lower classes that spend a larger portion of their income on consumable goods and services, these trends widen wealth gaps. By replacing and reducing progressive income taxes with these regressive forms of taxation, levels of inequality have risen. This paper examines the impact of such state and local taxes on the levels of income inequality within each state. Through empirical analysis, it identifies a substantial and positive correlation between the regressivity of state tax codes, as measured by the relative tax burdens on different income brackets, and the levels of inequality, as quantified by the income share of the top 1%. In this study, I examine the relationship between state tax policies and income inequality in the United States. By analyzing the tax structures of different states, I identify a significant correlation between regressive taxes, that disproportionately burden the less wealthy, and increased income inequality. Using quantitative data from 2013 to 2019, I show that states that rely more on taxes that burden working class families, like sales and excise taxes, witness larger portions of wealth concentration within the top 1%. These findings suggest that tax policy at the state level significantly shapes wealth distribution and highlight the need for reforms to reduce inequality at the state level.

VIABILIDADE DA ENERGIA FOTOVOLTAICA EM CARUARU

Renewable energy is an increasingly prominent topic due to the urgent need to reduce greenhouse gas emissions and combat global warming, which can lead to irreversible climate changes. In the state of Pernambuco, there is a growing popularity of solar energy, driven by its significant generation potential and ease of installation. Alongside these factors, there is an increase in the number of companies offering solar projects and installations for small consumers, enabling access to self-generated energy for both residences and businesses. However, despite these advantages, recent changes have raised questions about the viability of solar energy, particularly for the middle and lower classes. Thus, the purpose of this study is to analyze whether solar energy is feasible for residents of Caruaru or if further changes are needed to make it a realistic option.

Identify of Preoperative and Postoperative Complication of Planned Management and Emergency Management of Patients with PAS Disorder

Background: Placenta accreta spectrum (PAS) often results in significant blood loss and peripartum hysterectomy; the mother may not survive. In many cases, timely prenatal diagnosis allows for careful birth planning in a specialized facility with a highly qualified multidisciplinary team. This has been shown to reduce maternal morbidity. Scheduled deliveries are associated with lower rates of bleeding and emergency procedures when compared to emergency deliveries. Objective: The aim of this study is to identify the preoperative and postoperative complication of planned management and emergency management of patients with PAS disorder. Methods: The cross-sectional comparative study was conducted in the Department of Obstetrics & Gynaecology, Dhaka Medical College Hospital, Dhaka from 18th January 2020 to 17th July 2020. A total of 84 patients diagnosed as a case of PAS disorder (antenatally and peroperative diagnosed) and scheduled for planned management or emergency management of PAS were included according to inclusion and exclusion criteria. 42 planned management of PAS disorder patients as Group A and 42 emergency management of PAS disorder patients as Group B. The questionnaire was pretested, corrected and finalized. Data were collected by face-to-face interview and analyzed by appropriate computer based programmed software Statistical Package for the Social Sciences (SPSS), version 24. Results: In this study, mean ± SD of age was calculated 26.3 ± 4.3 years for Group – A and 28.1 ± 3.2 years for Group – B. Urban population were predominant in group-A. About 30 (70.0%)) patients in group-A and 10 (23.8%) patients in group-B came from urban. Large number of respondents 22 (52.4%) and 10 (50.0%) were housewife in both groups. Among the patients, the lower class 18 (42.9%) and 23 (54.8%) comprised the major percentage of the patients in both groups. More participants in Group-A 29 (69.00%) received ANC regularly than Group B 10 (23.80%), the difference was statistically significant (p<0.05). In group-A maximum patients presented with only USG findings of PAS disorders and with APH or without APH 26 (61.8%). In group-B, PPH and internal haemorrhage 10 (23.8) was noted predominantly. The mild anemia was more in 23 (54.8%) patients in group A and 16 (38.1%) patients in group B which was statistically significant (p < 0.001). More participants in Group-B 26 (61.9%) required early termination, whereas majority of group A 35 (83.3%) was terminated at 35-36 weeks. There was a statistically significant difference between groups. Maximum patients were managed by peripartum hysterectomy 35 (82.0%) and 31 (73.8%) in group A & B respectively. Presence of multidisciplinary team was arranged in 38 (90.4%) in group A and 18 (42.9%) in group B. General anesthesia and CV line was given in 36 (85.7%) patients in group-A and 27 (64.3%) patients in group-B. Massive blood transfusion was needed in 23 (54.8%) patients in Group B & only 3 (7.1%) patients in Group A. Placenta acreta was present 11 (26.2%) patients in group A and 7 (16.7%) patients in group B. Placenta percreta with bladder invasion and peroperative bladder injury was higher in group-B patients. More than 3 L blood was transfused 3 (7.1%) patients in group A and 23 (54.8%) patients in group B. PPH, Sepsis, Re-exploration, DIC and ICU admission were the significant complication in Group-B patients, reported 41 (95.0), 4 (9.5%), 8 (19.0%), 9 (21.4%) and 21 (50.0%) of women and in less complication in Group A 13 (31.0), 0%, 0%, 1 (2.3) and 4 (9.5). In this study mortality rate was 2 (4.8%) in group-B (due to irreversible shock &DIC). Poor outcomes were significantly higher in group-B. NICU admission for prematurity was required in 9 (21.4%) of the babies in group-A and 23 (54.8%) babies of group-B. Birth asphyxia was observed in 4 (9.5%) of the babies in group-A and 13 (31.0%) in Group-B. Conclusion: Prenatal diagnosis and placenta preservation may be linked to lower rates of morbidity in mothers. For morbidly adherent placenta linked with placenta previa, we advise hysterectomy as the preferred course of therapy following extremely thorough prenatal counseling. Maternal problems and fetal outcomes may be improved by early risk factor identification and proactive management.

The Imagination of the Forest and the Fear of the Land: The Idea of Nature in Recent Hindi Fiction

This article examines the idea of nature in two Hindi novels set in central India: Dīvār Meṃ Ek Khiṛkī Rahtī Thī (A Window Lived in a Wall) by Vinod Kumar Shukla and Kāle Adhyāya (Black Chapters) by Manoj Rupara. Both novels feature an elephant as a symbol of the forest and its otherness from the human world. The article argues that the elephant reveals a complex and contradictory imagination of the forest in Central India, which troubles both the idyllic pastoral of Shukla’s small town and the story of the violent dispossession of the Gondi Adivasi community in Kāle Adhyāya. The article situates these novels in the context of Hindi literature’s engagement with nature, regionalism and the lower middle class. In so doing, the article contributes to the scholarship on regional literature in Hindi and the study of Hindi literature’s depiction of nature.

Who feels they contribute to U.S. society? Helping behaviors and social class disparities in perceived contributions.

Americans in lower (vs. higher) social class contexts are less likely to believe they contribute to society. Helping others by giving one's time is an important way of contributing to others that also varies with social class. Five studies (N = 7,326) investigated whether one source of the social class disparity in perceived contributions is a default model that considers helping distant others (i.e., bridging help, e.g., volunteering) as more of a contribution than helping close others (i.e., bonding help, e.g., caring for family members). In Study 1, Americans in lower (vs. higher) social class contexts perceived they contribute less to society (i.e., self-perceived contributions, Part A) and believed others perceive them as contributing less (i.e., metaperceived contributions, Part B). Studies 2-4 provide evidence for a default model of social good: Americans across social class contexts and even helpers themselves perceived bridging help as more of a contribution than bonding help, in part, because bridging help is perceived as reflecting more choice to help. With a representative sample (Midlife Development in the United States), Study 5 finds that Americans in lower (vs. higher) social class contexts engaged in relatively less bridging help and more bonding help. However, bridging help served as a stronger pathway to feelings of contributing than bonding help did. Together, these studies suggest that people in lower social class contexts may experience a psychological inequality, in part, because some of the forms of help that are most accessible, familiar, and practiced are widely perceived as less of a contribution. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Teachers and Students’ Awareness of Re-Entry of Mother-Students Policy in Public Secondary Schools in Dodoma City, Tanzania

This study investigates the awareness levels among teachers and students regarding the re-entry policy for mother-students in public secondary schools in Dodoma City, Tanzania. The study employed a descriptive research design. A purposive sampling method was employed to select 10 of these 35 schools, ensuring a diverse representation from different areas within the city. The selected schools' population included 11,329 students and 512 teachers, from whom a sample of 489 students and 104 teachers was drawn. Data was collected using a self-administered questionnaire and analyzed through descriptive statistics and the Chi-square test. Based on the findings, the study concludes that gender and students’ education level determine the awareness of re-entry policies. Those students in higher classes had greater exposure to the policies than those in lower classes. Therefore, educational mobility expands individuals' access to policy discussion, calling for specific interventions among females and lower classes. The study suggests that professional development programs must increase teachers’ understanding of the re-entry policies, especially for female teachers. The school curriculums should introduce an extensive advocacy program for lower-level classes and girls. A fair outreach must be undertaken so that students, regardless of their socio-economic background, can know about reentry policies.

Is there ethnic discrimination in Roma children’s access to sports clubs in Hungary? Evidence from field experiments in basketball, volleyball, and soccer

In this paper, we examine children’s ethnic discrimination in access to sport. We conducted two field experiments to test whether Roma applicants get greater rejection rates when applying to sport clubs and whether this rate is higher in case Roma applicants have a lower-class background. Basketball, volleyball, and soccer coaches were contacted by e-mail using Roma and non-Roma sounding names, requesting to participate in a trial practice. Previous findings show persistent discrimination of Roma people in Central and Eastern Europe in the labor and housing market and in access to various public services. Our findings in the field of sport in Hungary show that there is significant ethnic discrimination only when a stereotype about Roma people being lower class is activated. Further, gender was found to have a significant effect, with higher positive response rates for mothers applying for a trial session for a daughter, than for a son, regardless of their ethnicity. Our findings suggest a prevailing intersection of class and ethnicity, though our data does not allow for the separation of these two effects. These differences are discussed to better understand the role of intersectionality in discrimination within sport.

Analysis Of Opinion Sentiment Towards Electric Vehicle Tax On Social Media X Using The Support Vector Machine (SVM) Method

Electric vehicle tax is increasingly becoming an important issue related to environmental and fiscal policies. Electric vehicles are considered an environmentally friendly solution to reduce greenhouse gas emissions and dependence on fossil fuels. However, public perception of electric vehicle tax is still mixed. This study aims to analyze public sentiment about electric vehicle tax based on data from social media platform X, using the Support Vector Machine (SVM) method. The data used was taken through a crawling technique with a total of 1,014 valid data. The data was then classified into positive and negative classes with a transformer. In this analysis, the data was divided with a ratio of 8:2 between training data and test data. 811 were used as training data and 203 as test data. The research stages involved data preprocessing, sentiment labeling, data separation into training and test data, and weighting using TF-IDF. After that, SVM was applied to classify tweets into positive and negative sentiments. The test results showed that the SVM algorithm had an accuracy of 79%, precision of 85%, recall of 89%, and F1-score of 87%. Based on the results of this study, some people feel unsure about the government's policy regarding electric vehicle tax, because it is considered unfair to the lower middle class. Electric vehicles are considered more expensive than fuel-powered vehicles, so this policy is considered unprofitable.

Cognitive Trajectories and Associated Social and Behavioral Determinants Among Racial/Ethnic Minority Older Adults in the United States.

Despite higher risks of developing Alzheimer's disease and Alzheimer's disease-related dementias (AD/ADRD) among racial/ethnic minority populations, some maintain good cognition until old age. This study aimed to investigate heterogeneous cognitive trajectories among non-Hispanic Black and Hispanic older adults, examine cognitive impairment prevalence across trajectory classes, and identify associated social and behavioral determinants. Using 11 waves of data from the Health and Retirement Study (1996-2016), 1,322 non-Hispanic Black and 747 Hispanic adults aged 50 + with normal cognition in 1996 were included. Latent class growth modeling and multinomial logistic regressions were performed to examine cognitive trajectories and associated determinants. For both racial/ethnic groups, three trajectory classes were identified: high, medium, and low cognition. In the low cognition class, 87% and 100% of non-Hispanic Black and Hispanic participants developed cognitive impairment. For both racial/ethnic groups, older age and living in rural areas during school time increased the likelihood of being in the low cognition class, while more education was associated with a lower likelihood. Unique risk and protective determinants for non-Hispanic Black and Hispanic participants were also identified. This study reveals the heterogeneity of cognitive trajectories among racial/ethnic minority older adults and various associated social and behavioral determinants. More prevention interventions and accessible, affordable diagnosis and treatment should be provided to older racial/ethnic minorities with these characteristics to reduce disparities. More research is needed to further explore associations between unique determinants and cognition in racial/ethnic minority populations to better inform interventions.

PELATIHAN DESAIN LOGO DAN KEMASAN UMKM KERIPIK PISANG DESA TRUNAMANGGALA MELALUI PENJUALAN DIGITAL MARKETING

The development of micro, small and medium enterprises aims to generate income for the lower middle class and is the most important driver in the national economy. In an effort to improve the welfare of micro, small and medium enterprises, the government currently offers various programs to business actors, including business capital, training, and business assistance with stakeholders. The banana chip business, which is one form of small micro business in Trunamanggala Village, Cimalaka District, Sumedang Regency, has problems in the form of the absence of a logo as a product identity, the absence of attractive packaging and the lack of utilization of digital marketing technology in its sales so that an assistance is needed to overcome this. Therefore, this community service method uses a training and socialization approach which aims to provide training in making product logos as well as providing training in marketing products online. The positive impact of this training is to increase market attractiveness and interest to help product images with creative logos, MSME players have products in digital marketing so that they can increase promotion of banana chip MSME players and increase the economy and profits for banana chip MSME players in Trunamanggala Village.

Visualization of AI Accuracy: A Novel Assignment for the Teaching of Critical Thinking and Science Writing

Background Rapid changes brought on by generative artificial intelligence (AI) have emphasized the need to teach students to work with this technology while also developing the “robot proof” human skills future workers will need, such as creativity, communication, and critical thinking. Objective The study objective was to explore whether a fact-checking, generative-AI assignment, inserted between the outline, and first-draft stages of a student's literature review writing process, would relate to student classification, perceptions of AI accuracy, and future trust in AI-generated content. Method Students in upper and lower division psychology classes used AI to generate a literature review on their final paper topic, which they then fact-checked for accuracy and usefulness using a color-coded system. Results Lower division students expected more inaccuracy, highlighted less information as inaccurate, and reported greater future trust of AI-generated content than upper division students. Conclusion Students with more experience critically evaluating primary sources may be better equipped to detect inaccuracies within AI-generated content. Teaching Implications Teachers of any course requiring a literature review paper may use this assignment to encourage student use of AI with a critical eye toward recognizing where that content is incorrect.

Groundwater potential mapping and its sustainable management using AHP and FR models in the Jedeb watershed, Upper Blue Nile Basin, Ethiopia

ABSTRACT Groundwater potential mapping and its sustainable development are important aspects of the Jedeb watershed due to an increase in groundwater demand and the local population. This study aimed to delineate potential groundwater zones in the Jedeb watershed, using the analytical hierarchy process (AHP) and frequency ratio (FR) model. Nine thematic layers, including lithology, geomorphology, slope, drainage density, land cover and land use, lineament density, rainfall, soil, and static water level, were considered. The thematic layers obtained were integrated into a Geographic Information Systems (GIS) environment to generate the groundwater potential map. Four classes of groundwater potential have been identified: low, moderate, high, and very high. The low classes represent 12.8% and 7.02%; moderate 25.35% and 34.84%; high 38.8% and 33.11%; and very high 23.05% and 25.03%, for the AHP and FR models, respectively. The result map was also validated by using receiver operating characteristic (ROC) curve from which result accuracy was obtained is 85.6% and 88.3% for the AHP method and FR method, respectively. The study's validation verified that the FR model produced more efficacious results than the AHP model. This study, will be helpful in providing planners, and decision-makers with rapid decision-making when it comes to managing groundwater resources.