bluuebunny/crossref_metadata_2025 huggingface dataset:
Efficient Phosphate Adsorption from Groundwater by Mn-FeOOHs
Authors: Li Mengxue , Sun Guanghui , Chu Ziyang , Wang Jing , Qiu Yu
Published: August 2024

Manganese co-precipitated with goethite (Mn-FeOOH) is ubiquitous within (sub-)surface environments, which are considered one of the most important sinks for phosphorus pollution management. Accordingly, various mole ratios of Mn-FeOOHs are synthesized and characterized by XRD, FE-SEM, FTIR, BET, XPS, hysteresis loop, acid–base titration and zero potential. According to XRD and FESEM images, the substitution of Mn causes subtle alterations in the microstructure and crystal structure of goethite, and the morphology of Mn-FeOOHs is transformed from needle-shaped goethite to a short-rod-shaped rough surface with increasing Mn substitution. Based on the analysis of BET and acid–base titration, the substitution of Mn into goethite significantly improved the surface area, pore volume, surface properties and active sites of goethite, thereby establishing a theoretical basis for effective subsequent adsorption. Batch experiment results show that the removal rate of phosphate decreases with the increasing solution pH, indicating that acidic groundwater conditions are more conducive to the removal of phosphate. In addition, the adsorption of phosphate on Mn-FeOOHs is independent of ionic strength, indicating that the inner-sphere surface complexation predominated their adsorption behaviors. The isotherm experiment results showed that Mn-G15 exhibits the strongest adsorption capacity for phosphate at pH 5.5 and T = 318 K, with a maximum adsorption capacity of 87.18 mg/g. These findings highlighted the effect of Mn content on the fixation of phosphate onto Mn-FeOOHs from (sub-)surface environments in pollution management.
Simulating Noise, Vibration, and Harshness Advances in Electric Vehicle Powertrains: Strategies and Challenges
Authors: Horváth Krisztián , Zelei Ambrus
Published: August 2024

This study examines the management of noise, vibration, and harshness (NVH) in electric vehicle (EV) powertrains, considering the challenges of the automotive industry’s transition to electric drivetrains. The growing popularity of electric vehicles brings new NVH challenges as the lack of internal combustion engine noise makes drivetrain noise more prominent. The key to managing NVH in electric vehicle powertrains is understanding the noise from electric motors, inverters, and gear systems. Noise from electric motors, mainly resulting from electromagnetic forces and high-frequency noise generated by inverters, significantly impacts overall NVH performance. This article details sources of mechanical noise and vibration, including gear defects in gear systems and shaft imbalances. The methods presented in the publication include simulation and modeling techniques that help identify and solve NVH difficulties. Tools like multi-body dynamics, the finite element method, and multi-domain simulation are crucial for understanding the dynamic behavior of complex systems. With the support of simulations, engineers can predict noise and vibration challenges and develop effective solutions during the design phase. This study emphasizes the importance of a system-level approach in NVH management, where the entire drivetrain is modeled and analyzed together, not just individual components.
An Undetected Expansion, Spread, and Burden of Chikungunya and Dengue Cocirculating Antibodies in Nigeria
Authors: Asaga Mac Peter , Tadele Markos , Nisansala Thilini , Airiohuodion Philomena E. , Babalola Chibuzor M. , Anyaike Chukwuma
Published: August 2024

Chikungunya and dengue are arboviral diseases transmitted by mosquitoes that have been increasingly recognized as public health concerns in Sub-Saharan Africa. Several studies conducted in Nigeria and other West African countries have revealed the seroprevalence burden and cocirculation of antibodies against mosquito-borne infections, thereby revealing a significant burden and clinical outcome complexities that have largely gone undetected. The current research study has important implications for disease surveillance, prevention strategies, and healthcare planning in Nigeria and other Sub-Saharan countries. A cross-sectional study was conducted on 871 outpatients and pregnant women from three regions of Nigeria. CHIKV and DENV immunoblot molecular diagnostic assays were used to analyze the serum samples for the presence of arboviral antibody serological markers IgG (Mikrogen Diagnostik, Germany) with DENV nonstructural protein 1 and DENV Equad and CHIKV virus-like particles (VLPs), according to the manufacturer’s instructions. A total of 871 participants were recruited from three geographical regions in Nigeria. Among them, 17.5% (152/871) were from Abia (southern Nigeria), 34.4% (300/871) were from Kaduna (northern Nigeria), and 48.1% (419/871) were from Nasarawa (central Nigeria). The ages of the participants ranged from 0 months to 80 years, with a mean age of 36.6 years. Of the 871 subjects, 71.0% (619/871) were female, and 29.0% (252/871) were male. The overall cohort detectable antibody seropositivity against CHIKV was 64.9% (565/871), 95% CI (61.74–68.06); DENV, 44.7% (389/871), 95% CI (41.41–47.99); and CHIKV-DENV cocirculation antibodies, 31.6% (95% CI 29–35). This study highlighted the unpredictably high seroprevalence, expansion, magnitude, and undetected burden of chikungunya and dengue in Nigeria.
Neuroinflamação Hipocampal e Distúrbios de memória na Síndrome Pós-COVID-19
Authors: Souza Silva Jean Carlos , Pessoa de Araújo Dayane , Pinheiro Carlos Hermano da Justa , Cunha de Oliveira Ariclécio
Published: August 2024

Introdução. Este artigo aborda as implicações neurocognitivas da síndrome pós-COVID-19, com ênfase na neuroinflamação hipocampal e seu possível impacto nos distúrbios de memória. Explorando as evidências existentes sobre a relação entre a infecção por COVID-19 e as alterações neurocognitivas, busca-se aprofundar a compreensão desses fenômenos, destacando a importância de pesquisas mais detalhadas nesse campo crítico da saúde neurológica. Objetivo. Analisar as repercussões neurocognitivas na síndrome pós-COVID-19, com foco específico na neuroinflamação hipocampal e distúrbios de memória, visando aprofundar a compreensão dos mecanismos patológicos associados. Método.  A pesquisa foi conduzida utilizando estratégias de busca em bases de dados como MEDLINE/PubMed, Science Direct e Web of Science. Os termos de busca seguiram padrões MeSH e DeCS. A questão norteadora foi sobre o impacto da síndrome pós-COVID-19 nas funções neurocognitivas, com foco na neuroinflamação hipocampal e distúrbios de memória. Resultados. A ativação microglial no hipocampo, associada ao comprometimento cognitivo por vírus, pode explicar sintomas neuropsiquiátricos em sobreviventes de COVID-19. Estudos indicam que a inflamação sistêmica, presente na sepse grave, pode desencadear comprometimento cognitivo e neurodegeneração, possivelmente compartilhando semelhanças com a COVID-19.   Conclusão. Compreender as lesões cerebrais causadas pela COVID-19 pode guiar intervenções terapêuticas, incluindo moduladores de citocinas, para mitigar queixas neuropsiquiátricas. Melhorar as complicações pós-COVID-19 reduzirá o impacto da doença, enquanto a neuropatologia pode fornecer insights valiosos para outras condições neurodegenerativas.
PEDF-Enriched Extracellular Vesicle for Vessel Normalization to Potentiate Immune Checkpoint Blockade Therapy
Authors: Shin Sol , Kim Chan Ho , Son Soyoung , Lee Jae Ah , Kwon Seunglee , You Dong Gil , Lee Jungmi , Kim Jeongyun , Jo Dong-Gyu , Ko Hyewon , Park Jae Hyung
Published: August 2024

The abnormal tumor vasculature acts as the physical and functional barrier to the infiltration and activity of effector T cells, leading to the low response rate of immune checkpoint inhibitors (ICIs). Herein, antiangiogenic extracellular vesicles that enable normalization of the tumor-associated vasculature were prepared to potentiate the efficacy of ICIs. Small extracellular vesicles were exploited as the delivery platform to protect the antiangiogenic protein, pigment epithelium-derived factor (PEDF), from proteolytic degradation. Along with the physicochemical characteristics of the PEDF-enriched extracellular vesicles (P-EVs), their inhibitory effects on migration, proliferation, and tube formation of endothelial cells were investigated in vitro. In tumor-bearing mice, it was confirmed that, compared to bare PEDFs, P-EVs efficiently reduced vessel leakiness, improved blood perfusion, and attenuated hypoxia. Consequently, when combined with anti-PD-1 antibodies, P-EVs remarkably augmented the antitumor immunity, as evidenced by increased infiltration of CD8
+
T cells and reduced regulatory T cells. These results suggest that P-EVs are promising therapeutics for tumors refractory to ICIs.
Nanoarchitectonics of Injectable Biomimetic Conjugates for Cartilage Protection and Therapy Based on Degenerative Osteoarthritis Progression
Authors: Bi Jingwei , Zhang Limin , Zhang Pengfei , Xu Shulei , Liu Yuhao , Zhang Xiaolai , Qiu Xiaoyong , Bi Yanwen , Yan Fangfang , Wei Hui , Cui Xin , Pan Xin , Huang Jun , Zhao Yunpeng
Published: August 2024

Osteoarthritis (OA) is a common age-related degenerative disease characterized by changes in the local tissue environment as inflammation progresses. Inspired by the wind-dispersal mechanism of dandelion seeds, this study develops responsive biomimetic microsphere–drug conjugate for OA therapy and protection. The conjugate integrates dibenzaldehyde polyethylene glycol (DFPEG) with chitosan and polyethylene glycol diacrylate (PEGDA) through dynamic covalent bonds to form a dual-network hydrogel microsphere. Based on the progression of OA, the conjugate with the surface-anchored cyclic peptide cortistatin-14 (CST-14) achieves targeted drug therapy and a self-regulating hydrogel network. In cases of progressing inflammation (pH < 5), CST-14 dissociates from the microsphere surface (viz. the drug release rate increased) and inhibits TNF-α signaling to suppress OA. Concurrently, the monomer DFPEG responsively detaches from the hydrogel network and scavenges reactive oxygen species (ROS) to protect the cartilage tissue. The ROS scavenging of DFPEG is comparable to that of coenzyme Q10 and vitamin C. The degraded PEGDA microspheres provide tissue lubrication through reused conjugates. The rat OA model successfully achieved a synergistic therapeutic effect greater than the additive effect (1 + 1 > 2). This strategy offers an approach for anchoring amine-containing drugs and has marked potential for OA treatment and protection.
Nanotherapeutic System with Effective Microwave Sensitization and Pyroptosis Programming Enable Synergistic Microwave-Immunotherapy in Bladder Cancer
Authors: Deng Hao , Huang Jinliang , Gao Ning , Liu Zhi , Yi Zhenglin , Xiao Jiatong , Gao Xin , Zhang Chunyu , Juliet Matsika , Hu Jiao , Chen Jinbo , Zu Xiongbing
Published: August 2024

Currently, the prognosis for patients with advanced bladder cancer remains poor, with only a minority being sensitive to immune checkpoint inhibitors. There is a need to develop additional treatment strategies. Microwave therapy, as a promising approach for some inoperable tumors, still faces challenges such as limited efficacy and high recurrence rates. Additionally, the cell damage and necrosis induced by conventional microwave treatment only act as weak immunostimulatory factors for antitumor immunity, failing to activate effective antitumor immune responses. Recent discoveries have shown that inducing pyroptosis can provide a good opportunity for enhancing systemic immune responses and alleviating immune suppression in cancer therapy. Here, we have developed Mn-ZrMOF@DAC, a microwave-sensitized nanoparticle loaded with the DNA methylation inhibitor decitabine. The Mn-ZrMOF@DAC can enhance the effect of microwave thermal therapy and generate reactive oxygen species under microwave irradiation, causing thermal and oxidative damage to cancer cells. Furthermore, there was an important up-regulation of the key pyroptosis protein GSDME, with a marked increase in pyroptotic cell numbers. In vivo experiments demonstrated that mice injected with Mn-ZrMOF@DAC nanoparticles followed by microwave radiation treatment exhibited potent antitumor effects and enhanced the efficacy of anti-PD-1 therapy. This therapy not only enhanced the efficacy of microwave treatment, exhibiting significant antitumor effects, but also activated antitumor immunity by inducing pyroptosis, thus enhancing the efficacy of immunotherapy for bladder cancer. It holds promise for providing new avenues in the treatment of bladder cancer.
Deep Learning in Heart Sound Analysis: From Techniques to Clinical Applications
Authors: Zhao Qinghao , Geng Shijia , Wang Boya , Sun Yutong , Nie Wenchang , Bai Baochen , Yu Chao , Zhang Feng , Tang Gongzheng , Zhang Deyun , Zhou Yuxi , Liu Jian , Hong Shenda
Published: August 2024

Importance:
Heart sound auscultation is a routinely used physical examination in clinical practice to identify potential cardiac abnormalities. However, accurate interpretation of heart sounds requires specialized training and experience, which limits its generalizability. Deep learning, a subset of machine learning, involves training artificial neural networks to learn from large datasets and perform complex tasks with intricate patterns. Over the past decade, deep learning has been successfully applied to heart sound analysis, achieving remarkable results and accumulating substantial heart sound data for model training. Although several reviews have summarized deep learning algorithms for heart sound analysis, there is a lack of comprehensive summaries regarding the available heart sound data and the clinical applications.
Highlights:
This review will compile the commonly used heart sound datasets, introduce the fundamentals and state-of-the-art techniques in heart sound analysis and deep learning, and summarize the current applications of deep learning for heart sound analysis, along with their limitations and areas for future improvement.
Conclusions:
The integration of deep learning into heart sound analysis represents a significant advancement in clinical practice. The growing availability of heart sound datasets and the continuous development of deep learning techniques contribute to the improvement and broader clinical adoption of these models. However, ongoing research is needed to address existing challenges and refine these technologies for broader clinical use.
Roles of Chatbots in Gamified Self-Regulated Learning System to Enhance Achievement Motivation of Learners in Massive Open Online Courses
Authors: Khlaisang Jintavee , Koraneekij Prakob
Published: August 2024

The integration of self-regulated learning, which allows learners to set goals and plan their learning according to their needs and interests, with the concept of gamification creates challenges and engagement in learning. Additionally, the use of chatbots to provide real-time feedback can stimulate learning and significantly enhance achievement motivation in massive open online courses (MOOCs). In this study, we present a learning innovation system in the form of a gamified self-regulated learning (GSRL) system to address the low completion rate and high dropout rate of learners in MOOCs. Our system enhances learners’ achievement motivation. The objective of this study is to examine important factors in the development of GSRL systems to enhance achievement motivation for MOOCs and to study the results of using the GSRL system with learners in higher education. This research adopts a research and development approach, collecting both quantitative and qualitative data. Quantitative data were collected from questionnaires, and qualitative data were collected from expert interviews to inform the design and development of the GSRL systems. Quantitative data collected from 898 higher education students were analyzed using confirmatory factor analysis. The GSRL system was then used experimentally with 205 Thai MOOC students. It was found that the overall achievement motivation following this study was significantly higher than the rate before studying. Classification by age showed that learners aged 20 years and older developed achievement motivation that was higher than that of those under 20 years old. The results of the analysis of the achievement motivation correlations in regard to learners’ opinions and learning behavior observation found that learners with high achievement motivation tend to exhibit behaviors that reflect this.
An Investigation Into The Importance Of Organisational Public Relations For Live Music Festivals In Ireland, Paying Particular Attention To Organisational Identity, Image And Reputation
Authors:   ,   Cork Institute of Technology, Mahy David
Published: August 2024

"This research is concerned with Image and Reputation creation and management within the entertainment sector, specifically with regard to live music festivals and how a Public Relations campaign can successfully create a favourable image with its main target demographics and maintain a positive reputation and corporate identity. The literature on the subjects of reputation, identity and event management revealed that relationship building and image management with primary groups of stakeholders can be very significant contributors to the success of live music festivals. Successful two way engagement with customers and perspective attendees of the festival can ensure the continued existence of events that are susceptible to negative effects of bad publicity and reputations. The research methodology employed in this study was based on the discipline of qualitative research which utilised surveys and semi-structured interviews as a basis for primary data collection. The findings of the survey uncovered the feelings and emotions of festival goers towards festivals in Ireland and showed that generally people do wish to engage with festivals through social media and that positive relationships can be majorly important to both festival organisers and goers alike. The interviews conducted provided valuable insight from professionals involved with music festivals about behind the scenes thoughts, theories and applications of a lot of the themes explored in the literature of the subject This thesis recommends that music festival in Ireland pay particular attention to achieving a positive Organisational Identity by utilising all the techniques of Organisational Public Relations including Event Management, Social Media, and Marketing Public Relations. The thesis recommends that festival organisations should strive to create a lasting positive image and reputation as a means of ensuring their continued success"
An Investigation Into The Marketing, Advertising And Labelling Of Processed Food In Ireland And Its Influences On Consumer Choice And Subsequent Health Issues
Authors:   ,   Cork Institute of Technology, Healy Jane
Published: August 2024

"Ireland has experienced much economic and social change in recent years, and as a result of this, many new food choices and commodities are on offer to the consumer. The simple diet of fresh, unprocessed foods that existed in Ireland in the past has for many consumers been replaced by processed, convenience food products. The purpose of this study is to examine the effects which the marketing, advertising and labelling of processed food in Ireland has on consumers, and how these strategies influence their choice of food. The advertising claims and the labelling of these processed foods is of interest in this research as consumers are challenged to understand, and interpret exactly, what is contained in processed food products. A qualitative approach in this study provided the opportunity to gain insights into consumers’ experiences and perceptions relating to food choices. Parents of two or more children were interviewed, to determine the impact which advertising of food products has on their children. The research findings suggest that consumers read labels on food products but may not necessarily be proficient at relating this information to specific nutrient guideline amounts. This study enhances the understanding of eating habits, confirming that food choice is determined by a highly complex set of interactions, and finding that cost is a major factor affecting food choice. This study provides persuasive evidence that parents believe that children are highly influenced by the advertising and marketing of food products from a young age. The findings in this study confirm that parents overwhelmingly support the regulation of advertising to children. This study further reveals that the majority of consumers support the display of calorie information, as a form of labelling, on menus to assist them in making healthier food choices. In summary, consumers want to have information on food products available to them whether or not they choose to use it."
Evaluation of the antibacterial activity of pineapple (Ananas comosus) (L.) Merr. industrial waste against common fish and shellfish pathogens
Authors: Taka Honielyn , Pedroso Fiona L. , Choresca, Jr. Casiano H. , Caipang Christopher Marlowe A. , Fagutao Fernand F.
Published: August 2024

Disposal of industrial pineapple (Ananas comosus) wastes is a pressing environmental issue due to pollution risks when accumulated in large quantities. These wastes are susceptible to microbial spoilage, posing serious environmental and health concerns. Therefore, exploring their conversion into valuable products is crucial for effective waste management. In this study, we assessed the antibiotic properties of pineapple processing wastes against prevalent fish pathogens in aquaculture. The wastes underwent various drying methods: sun-drying (SD), oven-drying (OD), and mechanical dehydration (DH). Ethanol extraction was used to isolate bioactive compounds, which were then tested for antibacterial activity at a concentration of 1000 mg/ml using the Agar Well Diffusion technique and Zone of Inhibition (ZOI) assay. Minimum Inhibitory Concentration (MIC) values were determined across six concentrations: 31.25 mg/ml, 62.50 mg/ml, 125 mg/ml, 250 mg/ml, 500 mg/ml, and 1000 mg/ml. Results indicated that all extracts from different drying processes effectively inhibited all tested aquaculture pathogens. DH extracts showed the highest antibacterial activity against Vibrio harveyi and Vibrio parahaemolyticus, with ZOI of 24.67 + 1.25 mm and 21.67 + 0.47 mm, respectively, and a consistent MIC of 250 mg/ml across all pathogens. SD extracts displayed a MIC of 125 mg/ml against Streptococcus agalactiae, while OD extracts showed a MIC of 1000 mg/ml against Edwardsiella tarda, Aeromonas veronii, and S. agalactiae, and 250 mg/ml against both Vibrio species. Comparative analysis with oxytetracycline did not reveal significant differences. These findings suggest that pineapple waste extracts have potential as natural antibacterial agents against common aquaculture pathogens, offering an eco-friendly alternative to commercial antibiotics.
The upregulation of protein disulfide isomerase (PDI) and its potential usage in drug-targeted therapy for breast cancer
Authors: Gam Lay-Harn , Lim Chu-Ai , Muhammad Saad Mardi , Khoo Boon-Yin , Singh Manjit
Published: August 2024

Breast cancer is the leading cause of cancer death among women worldwide. As of the end of 2020, there were 2.3 million women diagnosed with breast cancer and 685 000 deaths globally. Chemotherapy is a common treatment for breast cancer although it was known to be associated with many side effects. It is believed that such treatment can be improved by drug targeted therapy. Recently we have carried out a preliminary study on proteomics analysis of 25 pair of surgically removed breast cancerous tissues and normal tissues from patients. Differentially proteins expression between the types of tissues was done by 2D-gel electrophoresis separation followed by protein profiles mapping. The identity of the targeted protein spots was analysed by LC/MS/MS and protein database search. The data was then confirmed by Western blots. Subsequently, immunocytostaining experiments were carried out to determine the cellular location of the targeted proteins. A few proteins were found significantly (p <0.05) upregulated > 2 folds in breast cancerous tissues compared to breast normal tissues. Two of the up-regulated proteins, namely HSP60 and PDI were upregulated in stage 2, stage 3, T2, T3, N2, and N3 breast cancers. The immunocytostaining revealed the extracellular location of these proteins, while the strong immunoreactivity of PDI with its anti-PDI antibody marked it as a usefulness target for breast cancer therapy.
Neurobiological Effects of Lipoid Proteinosis: A Study on Phosphorylated Tau, S100B, NSE, NEFL, and GFAP
Authors: Taşkın Seyhan , Çelik Hakim , Aksoy Mustafa
Published: August 2024

Background: Lipoid Proteinosis (LP), also termed Urbach-Wiethe disease, is an enigmatic genodermato-sis marked by the systemic deposition of hyaline material. With its etiology rooted in ECM1 mutations, LP’s neuropathological spectrum has been hypothesized to involve an array of neurodegenerative biomarkers, underscoring a potential for substantial neurobiological implications. This study endeav-ored to elucidate the serum concentrations of neurodegenerative biomarkers—phosphorylated Tau (pMAPT), S100B, Neuron-Specific Enolase (NSE), Neurofilament Light Chain (NEFL), and Glial Fibrillary Acidic Protein (GFAP)—in LP patients, seeking to establish their diagnostic utility for the condition.
Materials and Methods: Fifteen LP patients and 15 matched healthy controls were enrolled. Serum levels of the biomarkers were quantified using ELISA, and their predictive power was assessed through binary logistic regression and Receiver Operating Characteristic (ROC) analysis.
Results: Elevated serum levels of NSE, NEFL, and GFAP were observed in LP subjects relative to healthy counterparts, reaching statistical significance (p<0.05). In contrast, pMAPT and S100B levels did not differ appreciably. GFAP is considered a predictive marker for LP with an area under the curve (AUC) value of 0.813 and a 95% confidence interval (CI) of 0.658-0.968 (p=0.003).
Conclusions: The study underscores a distinctive neurodegenerative profile in LP, with NSE, NEFL, and GFAP concentrations significantly amplified. These biomarkers, particularly GFAP, may represent novel indicators for LP, offering prospective biomarker-based diagnostic strategies. The insights garnered herein pave the way for advanced understanding and clinical management of LP, delineating a novel avenue for future high-impact research.
Gestión de SISEP para tutores clínicos
Authors: Ruiz Ferrón María Cecilia , León Larios Fátima , Mateos García María Dolores
Published: August 2024

Es un video tutorial para tutores clínicos que participan del seguimiento y evaluación de las prácticas de los estudiantes del Grado en Enfermería de la Universidad de Sevilla.
Permite al tutor clínico saber cómo evaluar al estudiante que tutoriza durante el curso de las asignaturas prácticum I, II, III, IV y V.
Ratgebermedien: Produktion, Produkt und Inanspruchnahme
Authors: Sauerbrey Ulf , Großkopf Steffen , Ott Christine
Published: August 2024

Im vorliegenden Band werden neben buchförmigen Ratgebern auch digitale Ratgebermedien aus verschiedenen Blickwinkeln thematisiert. Der Band versammelt Ergebnisse des wissenschaftlichen Netzwerks "Ratgeben und Ratnehmen zwischen Selbst- und Fremdoptimierung. Empirische Rekonstruktionen zur Produktion und Rezeption von Ratgebermedien", das von Ulf Sauerbrey, Nicole Vidal und Steffen Großkopf 2019 beantragt wurde und das von 2021 bis 2024 von der Deutschen Forschungsgemeinschaft gefördert wurde. Wie sich im Titel des Netzwerks andeutet, wird der Fokus sowohl auf die Entstehung und die Angebote von Ratgebermedien (das Ratgeben) als auch auf ihre Nutzung (das Ratnehmen) gerichtet. Umfasst sind zudem Ratgebermedien in einer historischen Perspektive. (DIPF/Orig.)
Zum Making-Of sprachlicher Wissensvermittlung: Verhandlungen von Ratgeberhaftigkeit in der Textproduktion
Authors: Ott Christine
Published: August 2024

In ihrem Werkstattbericht beleuchtet die Autorin, welche methodischen Möglichkeiten und forschungspraktischen Herausforderungen sich ergeben, wenn man den Produktionsprozess eines Buchratgebers untersuchen möchte. Im Zentrum steht die Forschungsfrage, wie der textliche Status als ‚Ratgeber‘ von und zwischen den Akteur*innen der Ratgeberautor*innen und Verlagsredakteur*innen ausgehandelt wird und das im Entstehen befindliche Buch von verwandten Textsorten wie dem Lehrbuch abgrenzbar gemacht werden soll. (DIPF/Orig.)
Instagram als Ratgebermedium am Beispiel der Momfluencerinnen. Oder: "keiner muss sich durch Bücher wälzen"
Authors: Menzel Tessa-Marie
Published: August 2024

Die Autorin diskutiert die Social Media-App Instagram als Ratgebermedium. Anhand der so genannten ‚Momfluencerinnen‘, die ihren Familienalltag und das Muttersein in den Fokus ihrer Social Media-Präsenz rücken, zeigt sie, dass Momfluencing als ratgeberische Praktik kategorisiert werden kann, ohne dass die Akteurinnen durchweg an der Konstruktion eines Expertinnenstatus arbeiten. Beleuchtet werden zudem Machtfragen darüber, wer durch welche Ressourcen in der Lage ist, Rat zu geben, und wie sich beim Phänomen Influencing Praktiken des Ratgebens mit Konsumempfehlungen und Entertainment verschränken. (DIPF/Orig.)
Elternbriefe von Bildungsministerien am Beginn der COVID-19-Pandemie – eine krisenbedingte Form von Ratgebermedien?
Authors: Göthe Alicia
Published: August 2024

Eine von den Bildungsministerien der Länder im Rahmen der COVID-19-Pandemie genutzte Mediensorte waren Elternbriefe, die von der Autorin untersucht werden. Sie stellt dabei die Frage, inwieweit diese Elternbriefe eine krisenbedingte Form von Ratgebermedien bildeten. (DIPF/Orig.)
İstanbul'da “Sayfiye Konutu” Kavramı: Osmanlı'dan Cumhuriyet'e Değişen Tercihler ve Mekânsal Anlamlar
Authors: Yağan Köylü Nefise Burcu
Published: August 2024

Bu araştırma, İstanbul'daki "sayfiye konutu" kavramının Osmanlı İmparatorluğu döneminden Cumhuriyet dönemine kadar geçirdiği dönüşümü kapsamlı bir şekilde ele alarak analiz etmektedir. Metropolün gürültüsü ve yoğunluğundan uzaklaşma arzusuyla doğa ve deniz ile bütünleşik, huzurlu bir yaşam arayışının, bu benzersiz konut türünün ortaya çıkışını ve zamanla evrimini nasıl etkilediği üzerinde durulmaktadır. Sayfiye konutlarının tarihsel gelişimi, mimari evrimi ve bu süreçlerin İstanbul'un sosyal ve kültürel tarihine olan etkileri, çeşitli tarihsel belgelere, literatür incelemelerine ve mimari analizlere dayanarak detaylı bir şekilde incelenmektedir. Sayfiye ve ikinci konut kültürünün evrimi, bu mekânların sosyal sınıflar ve tatil alışkanlıkları üzerindeki etkilerinin incelenmesiyle beraber, Osmanlı'nın son dönemlerinden Cumhuriyet'in ilk yıllarına kadar mimarlık ve şehircilik alanında meydana gelen önemli dönüşümler detaylı bir şekilde ele alınmaktadır. Bu çalışma, sayfiye konutlarının İstanbul'daki mimari, sosyal ve kültürel yönlerini geniş bir perspektiften inceleyerek, bu konut türünün derinlemesine bir analizini sunmaktadır. İstanbul'da sayfiye konutu kavramı, Osmanlı döneminden günümüze dek yalı, köşk, sahilsarayı, kasır, villa ve apartman gibi çeşitli yapı türlerini barındırarak gelişmiştir. Bu yapılar, şehrin sosyal, ekonomik ve mimari dönüşümüne dair kritik bilgiler sağlayarak, zengin tarihi ve kültürel mirasını yansıtmaktadır.
APPLYING THE GUTTMAN METHOD AND RASCH MODEL TO CONSTRUCT SCHOOL STUDENTS’ ATTITUDES TOWARD THE SIGNIFICANCE OF THE MATHEMATICS SCALE
Authors: Alsoudi Sharif , ALHarthy Salim
Published: August 2024

The international relevance of measuring students’ attitudes toward mathematics is well-established. The purpose of this article is to construct a scale for secondary school students’ attitudes toward the importance of mathematics in Oman using the Guttman method and Rasch model. This study describes a new approach that combines these two methods to develop a psychometrically sound instrument. Using a sample of 309 eleventh-grade students, the authors developed and validated a scale, starting with 14 items. The content validity assessment led to the removal of two items, whereas the Rasch analysis resulted in the elimination of one additional item. The final 11-item scale demonstrated good fit with Rasch model assumptions, including unidimensionality, equal discrimination, satisfactory reliability, and separation coefficients. The reproducibility (0.93) and scalability (0.82) coefficients met Guttman’s criteria. The scale values ranged from -2.68 to 2.04 logits, confirming the cumulative principle. This paper is novel because it integrates the Guttman and Rasch approaches to develop a robust attitude scale, thus improving single-method approaches. The instrument can be used by researchers and stakeholders to effectively measure students’ attitudes toward mathematics, potentially improving educational practices and outcomes.
ESTIMATION OF DAILY ACTUAL EVAPOTRANSPIRATION FOR DATES USING THE ALARM
Authors: Alqudah Shadia , Suleiman Ayman , Aljaafreh Safaa
Published: August 2024

Date growth area in Jordan is expanding rapidly and estimation of its crop water requirements is needed. In this study, an attempt was made to estimate the daily actual evapotranspiration of date using Analytical Land Atmosphere Radiometer Model (ALARM) and FAO Penman-Monteith (FAO P-M) methods. The first objective of this study was to estimate the daily actual evapotranspiration of date trees using remote sensing data by ALARM model. The second objective was to compare the performance of the ALARM with calculated ETc using the FAO-56 Penman-Monteith equation, the most widely used method for estimating ET. Six images from Landsat 8 and 9 were used to compute ALARM ETa. The measured daily ETa of the date ranged from 2.58 mm/day on February 9 to 5.12 mm/day on May 15. ALARM underestimated the daily-calculated ETc1 by 30% on March 12, 16% on March 28, 12% on April 5, 8% on April 21, and 12.6% on May 15. The results obtained through ALARM and PM methods were evaluated through statistical performance measure tests. ETa estimated from ALARM was found to correlate tightly as R2 (0.842) and R2 (0.815) with ETc1 and ETc2, respectively. The other statistical parameters (RMSE) for ALARM result with FAO ETc1and ETc2 as 0.85 mm/day and 1.12 mm/day, respectively were also showing a good agreement between ALARM ETa and PM ETc. The findings of study have suggested that ALARM model shows a good potential to estimate spatial ET for the region.
ANALISIS KECURANGAN DALAM MENGHADAPI PENIPUAN DI SITUS E-COMMERCE MENGGUNAKAN RANDOM FOREST ; PENDEKATAN MACHINE LEARNING BERBASIS AI
Authors: Kolbia Ummi , Dahliyanti Nova
Published: August 2024

In this rapidly growing digital era, the phenomenon of e-commerce has become a major highlight, the rapid growth of e-commerce has attracted more and more users. However, cases of sophisticated and dynamic fraud are increasing as the volume of transactions increases. This phenomenon not only poses a risk of financial loss for buyers and sellers but also threatens the trust that is so important in the e-commerce industry. To solve this problem, the author uses a random Forest AI-based Machine Learning approach in analyzing and finding fraud patterns to deal with fraud on e-commerce sites. The Random Forest model was chosen because of its excellent ability to handle complex e-commerce transaction data, including the ability to find non-linear patterns, its resistance to overfitting, and its scalability on large datasets. This model is expected to identify suspicious fraud patterns in e-commerce transactions. The method will involve data processing, feature selection, and model training using a dataset that includes ecommerce transactions. The results of this research are expected to contribute to a better understanding of fraud on e-commerce sites in the face of future fraud. Effective fraud detection is also expected to reduce the losses caused by fraud on e-commerce sites and protect users from the risk of fraud.
MTR Model-Based Testing Framework
Authors: Németh Gábor Árpád , Lugosi Máté István
Published: August 2024

In this article we propose a novel, free and open- source model-based testing framework for finite state machine specifications. The various model handling and test generation options make the framework suitable for testing complex systems and provide a solid background for investigating different automated test design methodologies. The complexity and fault detection capabilities of the available algorithms are investigated through analytical analyses and simulations applying randomly injected faults.
Food supplementation policy for pregnant women: analysis of coverage in Brazilian regions in the light of COVID-19
Authors: Coelho Rabelo Machado Priscila , Chambô Filho Antônio , Pralon Nascimento Castheloge Coutinho Beatriz , Valeria Manhabusque Katia , Rosa Neves Smiderle Fabiana
Published: August 2024

Objective: in the context of Brazil, a peripheral country, pregnant women are a vulnerable class. Proper nutrition and fetal health depend directly on maternal nutrition, which is often precarious. Thus, the food supplement, which has already changed the health scenario of malnutrition in children, is big important in the best Prenatal Care. The objective is to analyze the quality and supply of food supplementation for pregnant women in Brazil, before and during the COVID-19 pandemic.
Methods: analysis of public domain data, from pregnant women registered in the E-manager primary care system, between 2019 and 2021.
Results: the micronutrients offered in Brazil in the public policy of supplementation for pregnant women are iron and folic acid, since 2005 until the present date. Data analysis showed that the offer of those both in the pre-pandemic year and in the pandemic was inadequate, reaching less than 20% of pregnant women in the five regions of the country, with only one state in the northeast region, of the 27 national states, having an adequate supply to 100% of pregnant women.
Conclusion: supplementation rich in several micronutrients, used preventively during pregnancy, reduces maternal and fetal diseases. However, in Brazil, the supplementation policy during pregnancy is poor in quality, offering only folic acid and iron for years, as well as inadequate distribution of these. This fact proved to be unrelated to the health crisis of the pandemic, as it occurred since the pre-pandemic and worse in numbers before than during it. Therefore, a set of “poor quality and low supply” was identified in the supplementation of pregnant women in Brazil, which contributes to maintaining greater maternal-fetal and child morbidity and mortality.
Obesidade abdominal está associado com níveis de estresse em militares
Authors: Barreto Silva Neto Luiz Claudio , Dos Santos Vieira Tamires , Lorentz Mattos de Souza Marcele , Pagani Corrêa Carlos Henrique , Batista Borloti Elizeu , Ferro Pedro Luiz , Madeira Álvares da Silva Adriana , Lopes-Júnior Luís Carlos
Published: August 2024

Introduction: The modern lifestyle, marked by an intense routine and inadequate diet, contributes to the increase in  Non-Communicable Diseases (NCDs), especially obesity, which can be influenced by stress. The relationship between stress, nutritional status and NCDs lacks comprehensive studies, especially when it concerns public security professionals.
Objective:  To evaluate the abdominal obesity and its association with stress symptoms in military personnel in the metropolitan region of a Brazilian capital.
Methods: The study is part of the "SOMA-SI" program, which investigated the health of public security agents in Espírito Santo between April and December 2022. The sample included police officers, firefighters and municipal guards (n=213). Healthy adult military personnel were included and those on leave or under psychiatric treatment were excluded. Among the variables measured were blood pressure measurements, anthropometric assessment and Lipp Stress Symptom Inventory. The Statistical Package for Social Science (SPSS) v. 25 for Windows® was used for statistical analyses. Chi-square and Mann-Whitney tests were performed at 5% significance, exploring associations between categorical variables and differences in median stress scores.
Results: The sample consisted of 216 participants, predominantly men (75.5%) and non-white (63.7%), revealing 61.6% with more than 15 years of work, 81.1% with income above six salaries minimum and 77.3% with completed higher education. Military police officers represented the majority (67.6%), with 72.2% being parents, 57.9% alcohol consumers and 9.3% smokers. The majority had excess body fat (70.8%) and weight (77.3%). Statistical associations were observed between waist perimeter and stress symptoms (p = 0.004).
Conclusion: The study revealed an association between abdominal adiposity and stress in military personnel, highlighting the high incidence of stress symptoms and excess weight in the sample. Associations were also identified between blood glucose, blood pressure and demographic factors. However, it highlights the importance of more comprehensive studies to understand the impact of stress on the health of security agents.
Knowledge of residents about Chagas disease and its vectors in a municipality of Juruá, Amazonas
Authors: Silva Luciana Braga da , Moura Manoella da Silva , Madeira Fernanda Portela , Florencio Wilame Germano , Prolo Júnior Sergio Luiz , Ribeiro Mariane Albuquerque Lima , Oliveira Jader de , Meneguetti Dionatas Ulises de Oliveira
Published: August 2024

Introduction: Chagas disease (CD) is an infectious condition caused by the protozoan Trypanosoma cruzi, primarily transmitted by vectors. Understanding the diversity of these vectors in a region is crucial for disease prophylaxis, with vector control being the main measure to reduce its incidence. Therefore, it is essential to enhance knowledge about triatomines to guide prevention and promotion actions, with active community participation.
Objective: to describe residents’ knowledge about Chagas disease and its vectors in a municipality in the Western Amazon of Brazil.
Methods: the data was collected by means of an interview with the application of a semi-structured questionnaire containing objective and subjective questions to residents over 18 years of age in the urban area of the municipality of Guajará - AM in their homes.
Results: out of 400 participants, 75% reported having heard of Triatomines. 65.38% of those who encountered a suspected insect in their home or surroundings claimed to have killed it and most could not indicate where the insect should be taken (91.25%). Only 40.25% correctly identified the triatomines, with Rhodnius montenegrensis (22.75%) being the most chosen. Most were unaware of signs/symptoms (70.25%), transmission routes (52.75%), and preventive measures (62.5%) related to CD. Regarding dietary habits: 93% consumed açaí (Euterpe olerácea), 88.75% buriti (Mauritia flexuosa), 65.5% sugarcane (Saccharum officinarum), 50.5% bacaba (Oenocarpus bacaba), 50.25% patoá (Oenocarpus bataua), and 75.75% game meat.
Conclusion: the research revealed several knowledge gaps on the topic, emphasizing the need to intensify health education actions.
Comparison of Shear Bond Strength of Orthodontic Brackets Bonded to Enamel Prepared by Er: Yag Laser and Conventional Acid Etching Technique-An in-Vitro Study
Authors: N Dr. Harish Kumar , Narayanan Dr. Badri , Pai Dr. Vinaya S. , Krishna Dr. Siri , Hegde Dr. Manjunath
Published: August 2024

Background: Brackets are one of the important components in orthodontic treatment which helps in transferring forces to the teeth to appreciate teeth movement. So, it is very important to have a better bond strength between brackets and teeth which can be achieved by different materials and techniques. Initially, etching (surface preparation) was done on the surface of the teeth by acid (37% phosphoric acid) to bond brackets directly to the teeth. Later with the introduction of lasers, surface preparation was done using Er: YAG laser which was considered as an alternative and better technique when compared with the conventional acid technique. Objective: To compare the differences in shear bond strength of orthodontic brackets bonded to enamel prepared by Er: Yag laser and conventional acid etching technique. Results: The shear bond strength of the acid group showed the least bond strength. ARI Index shows that group 3 laser etched group had major bond failure at favorable site with most number of score value between score1 to 3. ARI Index of group A & B showed most number of score value between score4 to 5 with major bond failure at unfavorable site. Conclusion: ANOVA and Chi-square test revealed statistically significant difference between 3 different groups on assessing the SBS and ARI Index. Group C (laser etched group at W. 1mJ & 10Hz) showed better bond strength at a clinically acceptable level and also had major bond failure at favorable site which produces least damage to the enamel surface. Group B laser etched group even though had higher bond strength of 15.95 MPa, their value highly deviates from the clinically required level of 8Mpa.
Malentendidos en la agencia: Cuando la emoción se hace cargo de la acción
Authors: Rivero-Obra Mercedes
Published: August 2024

La inteligibilidad se relaciona con la agencia de la persona al guiar su comportamiento para que sea razonable y darle sentido durante el transcurso de la acción. Sin embargo, esto no siempre sucede. A veces, la inteligibilidad fracasa y las acciones del sujeto se distancian de lo que antes había tenido sentido para él o para los demás. En ese momento aparecen lo que he denominado malentendidos en la agencia. Una de las causas de los malentendidos en la agencia es cuando el proceso emocional confluye con el proceso de actuación. Entonces, las emociones interfieren en la acción y producen una disociación cognitiva que dificulta la interpretación por parte de los agentes de lo que está ocurriendo en la escena, lo que genera una ruptura entre la inteligibilidad y el dar-sentido. Esto, además, da lugar a serios problemas de entendimiento y de comunicación. Es por ello que el análisis de los malentendidos en la agencia es tan importante.
Analyzing the Factors Influencing Employee Turnover in Private Commercial Banks in Bangladesh
Authors: Khadiza Rahman Tanchi
Published: August 2024

Employee turnover turn into central issue to focus for organization’s workforce development and strategy. Almost all private banks of Bangladesh have superior formation with excellent benefits but employee turnover occurs regularly. There are some factors that influence employee to leave the organization. The purpose of this research is to analyze the factors that influence employee turnover in private banking sector in Bangladesh. Time period of this study is from 01 March, 2015 to 31 May, 2015. A total of 16 variables responsible for influencing employee turnover are selected from related literature. Factor analysis has been conducted to reduce the number of total variables. Bartlett’s test of Sphericity has been used along with the Kaiser-Meyer-Olkin (KMO) statistic. SPSS 16.0 has been used to analyze the data collected from primary sources through random sampling technique. This analysis reveals that tangible and intangible Compensation, physical stress out of organizational support, inconsistency of supervision and business status, underprovided hygiene factor, lack of proper training and development and transfer of jobs are the most important factors that may influence employee turnover. From this study the private Commercial banks of Bangladesh can get a clear view about the factors that may influence employee turnover of their respective organization in order to reduce turnover