bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of geometrical parameters of conic pin structures in thermoplastic composite/steel hybrid joining
Authors: Popp J.
Published: February 2023

Abstract. Hybrid parts consisting of continuous fiber reinforced thermoplastic (CFRT) and steel components offer promising potential in lightweight construction. In this approach, the joining operation poses the major challenge due to different physical and chemical properties of both materials. This paper studies a joining method in which conical pin structures, protruding from the surface of the metal component, are inserted into the locally heated CFRT component to create a form fitting joint. The aim is to identify and quantify the influence of the parameters pin height and pin head diameter on the mechanical performance in single lab shear and cross head normal experiments. Based on the results it can be shown, that both an increased pin height and head diameter are beneficial under shear load in means of increased maximum load capacity while under normal load only an increased head diameter has clear benefits. Those effects are led back to the geometrical properties and the resulting stress distributions in the joining area.
Combination of versatile self-piercing riveting processes
Authors: Wituschek S.
Published: February 2023

Abstract. Due to economic and ecological framework conditions, a resource-saving utilization of raw materials and energy is becoming increasingly important in particular in the mobility sector. For the reduction of moving masses and the resources consumed, lightweight construction technologies are part of modern production processes in vehicle manufacturing, for example in the form of multi-material systems. Challenging in the manufacture of multi-material systems especially in view of changing supply chains is the variety of materials and geometries that bring conventional joining processes to their limits. Therefore, new processes are required, which can react versatile to process and disturbance variables. A widely used industrial joining process is semi-tubular self-piercing riveting, which is however a rigid process. To increase the versatility, the two newly established processes multi-range self-piercing riveting and tumbling self-piercing riveting are combined and the capabilities for targeted material flow control are united. Therefore, an innovative two-stage process based on the combination is introduced in this paper. The rivet is set with the multi-range self-piercing riveting process with an overlap of the rivet head and then formed by a tumbling process. Further, a specific adaptation of the tumbling strategy is used to investigate the possibility of reducing cracks in the rivet head. Thereby, different tumbling strategies are used and similar geometric joint formations are achieved to compare the results.
Influence of plastic orthotropy on clinching of sheet metal
Authors: Friedlein J.
Published: February 2023

Abstract. Clinching is a versatile mechanical joining method for assembling different sheet metal materials without auxiliary elements in short process times. The joint strength, however, solely relies on the material condition and its targeted interlock formation. Therefore, accurate material models are necessary incorporating all relevant phenomena to reliably predict the material behaviour. We extend a finite elastoplastic material model by incorporating the plastic orthotropy of the sheet metal in the joining process simulation. The anisotropy is captured by different variants of the 3D Hill 1948 yield function with associative and non-associative plastic flow. The constitutive models and the 3D clinching simulation are outlined and utilised to study the influence of plastic orthotropy focusing on the aluminium alloy EN AW-6014.
On the utilization of radial extrusion to characterize fracture forming limits. Part II: testing and modelling
Authors: Sampaio R.F.V.
Published: February 2023

Abstract. This second part of the paper is focused on double-action radial extrusion testing and modelling to characterize material formability and failure in the bulk-to-sheet material flow transitions that are commonly found in metal forming. Results show that three-dimensional to plane-stress evolutions at the radially extruded flanges lead to different modes of fracture (by tension and by shear) that may or may not be preceded by necking. The use of double-action radial extrusion as a formability test also reveals adequate to characterize the failure limits of very ductile metallic materials, which cannot be easily determined by conventional upset compression tests, and to facilitate the identification of the instant of cracking and of the corresponding fracture strains by combination of the force vs. time evolutions with the in-plane strains obtained from digital image correlation.
Friction behavior under magnetorheological lubricant in sheet metal forming process
Authors: Brun M.
Published: February 2023

Abstract. The increasingly high standards required in sheet metal forming industry, both geometrical and aesthetical, lead to continuous search of solutions to control the metal sheet flow during deformation. As alternative to traditional draw beads or hydraulically controlled segmented dies, the possibility of locally varying the material tangential speed by adapting the surface tribology at the interface between the blank and the blank holder represents a still unexplored scenario. The paper presents the feasibility analysis of the use of magneto-rheological (MR) fluids as lubricants in stamping, exploiting their ability to vary their rheological behaviour in response to external magnetic fields. To this aim, a new strip drawing test bench was developed to investigate the friction behaviour of MR fluids under different magnetic fields. The cold stamping of DC05 steel sheet was taken as reference case to investigate the influence of typical process parameters such as contact pressure, sliding speed and magnetic field.
Numerical and experimental investigation on the applicability of elastomer tooling components for the manufacturing of undercut geometries by sheet metal forming
Authors: Ott M.
Published: February 2023

Abstract. Due to their approximately hyperelastic properties, elastomers are suitable as a material for forming tools with extended forming capabilities. In this work, the use of two elastomer punches for manufacturing undercuts in sheet metal forming is performed experimentally for a demonstrator component. Since the manufacturing process does not require the use of cam slide units, it is aimed at rapid prototyping and small batch applications with the goal of reducing tooling cost and complexity. Additionally, the prediction accuracy of the elastomer tool deformation during forming was investigated in a finite element model of the manufacturing process. For comparison with the experimental implementation, punch force measurements and in-process optical strain measurements with a stereo camera system were carried out.
Extrusion as an energy-efficient manufacturing process for thermoplastic organosheets
Authors: Richter B.
Published: February 2023

Abstract. Organosheets combine the advantages of reinforcement fibers and thermoplastic polymers. By pairing these two materials, composites with outstanding mechanical properties and low densities can be produced. These semi-finished products can be further processed into complex and functionalized components by thermoforming or injection molding. There are a number of different manufacturing processes for continuous fiber reinforced thermoplastics (CFRT), however, most of them require long production times and recurrent melting of the polymer resulting in high energy and manufacturing costs. This study presents a novel extrusion process, that enables a continuous production of reinforced thermoplastic sheets with only one melting step. Due to the high energy efficiency and wide range of processible materials, this process shows a high potential for an economical production of CFRT. To investigate the extrusion process in more detail, the influence of the processing and the flow behavior of the polymer on the impregnation quality and the mechanical properties of the composites were studied. The results showed increasing fiber volume contents with lower polymer viscosities. Furthermore, higher die temperatures and pressures resulted in higher fiber volume contents and thus in higher mechanical properties. The experiments also revealed that a complete impregnation can currently not be achieved without an additional small double belt press due to the line load of the calender, the high viscosity of the melt and the short impregnation time.
An experimental study of bushing formation during friction drilling of titanium grade 2 for medical applications
Authors: Vanhove H.
Published: February 2023

Abstract. Recent advances towards patient specific, Titanium sheet based medical implants introduce a new challenge for the fixation of these implants to bones. Mainly the use of locking screws requires an implant thickness of approximately 2 mm for screw thread formation. Friction drilling is a hole-making process that displaces material to create a bushing below the sheet rather than extracting material. Screw thread can be formed in this bushing for the medical locking screws. This experimental study explores the influence of axial force, rotational speed and workpiece temperature on the bushing formation during friction drilling of Titanium grade 2 sheets. Finally, the influence of the optimal parameters on the material hardness is characterized.
Die-less forming of fiber-reinforced thermoplastic sheets and metal wire mesh
Authors: Rath J.E.
Published: February 2023

Abstract. The growing market for fiber-reinforced thermoplastics (FRTP) requires new flexible production processes for prototype and small series production, as conventional forming techniques involving molds are not cost efficient in these cases. Inspired by incremental sheet metal forming (ISF), an alternative manufacturing processes for the forming of FRTP with just two robot guided standard tools is outlined. To maintain a locally formed shape in the heated, flexible fabric, auxiliary wire mesh metal is used as it has similar deformation mechanisms, especially shearability, while being sufficiently self-supporting. Feasibility of the approach is discussed and investigated in basic experiments.
Investigation of the influence of workpiece-side parameters on the layer formation of zinc-coated boron-manganese steel
Authors: He F.
Published: February 2023

Abstract. The hot stamping process has been established as a technology for the production of ultrahigh-strength steel parts for safety-relevant components in lightweight construction for the automotive sector. Thanks to the reduced overall thickness combined with high tensile strength, it is possible to realize lightweight design concepts with improved crash behavior. Boron-manganese steels are usually used for this purpose. Due to initial process temperatures above 800 °C, hot stamping is considered a lubricant-free process. In addition to high friction and wear in the process, surface scaling and the need for tool repairs are the result. In light of these phenomena, hot stamping materials are coated to protect them from corrosion. Until now, aluminum-silicon-based coatings have been primarily used for the direct hot stamping route. While zinc-based coatings have so far mainly found usage in the indirect process route, they are now also become a valid alternative for the direct process route. In previous investigations, a significant influence of workpiece-side parameters on the formation of the coating during the austenitization process was found for aluminum-silicon (AlSi) coatings. In light of this, a similarly significant influence is suspected for zinc-based coatings. The parameters heating rate, furnace temperature and dwell time in the furnace and the effect on the coating formation of zinc-coated 20MnB8 during austenitization will be investigated. The resulting findings will form the basis for further experiments to investigate the influence of the parameters on friction and wear in the industry near strip drawing tests.
La degradación del suelo, impactos y contexto normativo
Authors: Castro-Carreño Anderson , Delgado-Londoño Diana María , González-Forero Rosalina
Published: February 2023

La degradación de suelos es un tema que debe verificarse frente a su conservación, recu-peración y defensa. Este capítulo se desarrolló desde la verificación de información teórica, en la que se expone la importancia de este recurso fundamental para la preservación de las especies y la natura-leza, como parte vital de la nación, pero que no ha sido manejado normativamente en Colombia de manera integrada con los demás recursos y la biodiversidad. Sin embargo, al no estar claro se generan confusiones, ya que no hay suficientes normas para manejar el buen uso del suelo y por esta razón se generan alteraciones y malentendidos por su uso.
Degradación de suelos por erosión en la jurisdicción de la Corporación Autónoma Regional de Cundinamarca (CAR). Análisis y perspectivas
Authors: Méndez-Torres Yeferson Stiven , Betancourth-Buitrago Sebastián , Ortega-Tenjo Jessica Daniela , Rivera-Daniels Jorge Armando
Published: February 2023

En la jurisdicción de la Corporación Autónoma Regional de Cundinamarca (CAR) se observa que uno de los problemas más fuertes de degradación en los suelos corresponde principal-mente a la erosión, con un porcentaje del 73,7% del área total de la jurisdicción según mapas de susceptibilidad (CAR, 2016). Este porcentaje hace alusión a que 860.816 ha que reflejan la nece-sidad de hacer frente a esa problemática mediante estrategias que ayuden a frenar o minimizar este impacto. También es importante resaltar que esta erosión está evaluada en términos físicos y estruc-turales, dejando de lado el uso de las características fisicoquímicas de dichos suelos erosionados o susceptibles a erosión. Debido a lo anterior, el Ejército Nacional de Colombia, junto con otras instituciones, trabaja en la consecución de información pertinente y permanente en el territorio, lo que permite un seguimiento mucho más profundo.
Cost of quality: Literature review, correspondence between models, and a call for a paradigm shift
Authors:   National Higher School of Electricity and Mechanics, Hassan II University, Casablanca, Morocco, Foulad Rida ,   Laboratory of Mechanics, Production and Industrial Engineering, Higher School of Technology of Casablanca, Hassan II University, Casablanca, Morocco, Amellah Saif ,   National Higher School of Electricity and Mechanics, Hassan II University, Casablanca, Morocco,   Laboratory of Mechanics, Production and Industrial Engineering, Higher School of Technology of Casablanca, Hassan II University, Casablanca, Morocco, Jebli Samir ,   National Higher School of Electricity and Mechanics, Hassan II University, Casablanca, Morocco,   Laboratory of Mechanics, Production and Industrial Engineering, Higher School of Technology of Casablanca, Hassan II University, Casablanca, Morocco, Sahib Amal-Oudiî ,   Laboratory of Mechanics, Production and Industrial Engineering, Higher School of Technology of Casablanca, Hassan II University, Casablanca, Morocco, Bouaziz Abdelhak ,   Laboratory of Mechanics, Production and Industrial Engineering, Higher School of Technology of Casablanca, Hassan II University, Casablanca, Morocco
Published: February 2023

Quality costing is a useful tool for companies. According to the literature, it has an important role in enhancing quality; strengthening competitiveness, and satisfying the customer. The aim of this article is to examine this subject from an unusual angle. We conducted a literature review of the main existing Cost of Quality (COQ) models, where we highlighted the differences and similarities in the terminologies used for COQ classifications. In addition, this work identified the criticisms of the COQ models in the literature; a comparative diagram of the main COQ models is also built to illustrate the correspondence between them. The article investigates an inductive and critical analysis approach to demonstrate the relationship between the dominant paradigm and the various COQ models; the conclusion drawn is that the main purpose of the COQ models is the profit of the shareholders at the expense of the third parties. To integrate the needs of the customer, the employee, and the environment as key stakeholders, we believe that a new COQ classification is a must. Such profound change implies a shift from the profit-centered paradigm toward a new one that should be capable to provide answers to the challenges solely for the sake of human well-being. The outcome of this study will pave the way toward a new better COQ classification. Hence, we expect the company to be at the service of human beings in a fine balance. To the best of our knowledge, the way we dealt with the COQ has never been done previously.
Ventajas del uso de bloques nutricionales
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

En este clip se muestra como realizar un bloque nutricional para asegurar alimento de calidad al ganado, en época de escases.
Variedades de limas ácidas
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

Realizar la selección de semillas para la propagación de los cítricos es una tarea que comienza con las plantas madres. En este clip, se ofrecen unas recomendaciones seleccionar las variedades de las limas ácidas.
Tutorado de lulo
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

Debido a su alta productividad, las plantas de lulo deben ser tutoradas. Vea en éste clip tecnológico, la forma como hacer un tutorado ideal para el cultivo, en la región de Antioquia.
Trampa para el picudo
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

En el siguiente clip tecnológico usted conocerá las recomendaciones principales para realizar la trampa para el picudo, siguiendo el paso a paso que es explicado por la investigadora de Corpoica Consuelo Castrillón.
Chisas en papa
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

Existen plagas que afectan los tubérculos, es el caso de la chiza en la papa, este es un gusano que se debe controlar en los cultivos de papa.
¿Cómo hacer un bloque nutricional?: paso a paso
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

En este clip se muestra cómo realizar un bloque nutricional para asegurar alimento de calidad al ganado en época de escasez.
Control de áfidos en tomate de árbol
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

Los áfidos o pulgones se presentan en el tomate de árbol durante las épocas secas, chupan la sabia de las hojas y detienen el crecimiento de las ramas. En este clip enseñan como controlar esta plaga.
Control de áfidos y escamas
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

En este clip se explica como se controlan los áfidos y escamas en los cítricos.
Control de los trips cítricos
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

En este clip se da a conocer cómo se controlan los trips en los cítricos, los cuales destruyen las capas superiores de los frutos, distorsionando la formación.
Control mosca de la fruta lulo
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

En este clip se ofrecen recomendaciones para prevenir y controlar la mosca de la fruta en los cultivos de lulo.
Cosecha de cebolla de rama
Authors:   Ministerio de Agricultura y Desarrollo Rural, Bogotá (Colombia),   Corporación Colombiana de Investigación Agropecuaria, (Colombia)
Published: February 2023

En este clip se muestra el proceso de cosecha de cebolla de rama en el departamento de Boyacá.
Design and Evaluation of Using Head-Mounted Virtual Reality for Learning Clinical Procedures: Mixed Methods Study
Authors: Lau Siew Tiang , Siah Rosalind Chiew Jiat , Dzakirin Bin Rusli Khairul , Loh Wen Liang , Yap John Yin Gwee , Ang Emily , Lim Fui Ping , Liaw Sok Ying
Published: February 2023

Background

The capacity of health care professionals to perform clinical procedures safely and competently is crucial as it will directly impact patients’ outcomes. Given the ability of head-mounted virtual reality to simulate the authentic clinical environment, this platform should be suitable for nurses to refine their clinical skills for knowledge and skills acquisition. However, research on head-mounted virtual reality in learning clinical procedures is limited.

Objective

The objectives of this study were (1) to describe the design of a head-mounted virtual reality system and evaluate it for education on clinical procedures for nursing students and (2) to explore the experience of nursing students using head-mounted virtual reality for learning clinical procedures and the usability of the system.

Methods

This usability study used a mixed method approach. The stages included developing 3D models of the necessary instruments and materials used in intravenous therapy and subcutaneous injection procedures performed by nurses, followed by developing the procedures using the Unreal Engine (Epic Games). Questionnaires on the perception of continuance intention and the System Usability Scale were used along with open-ended questions.

Results

Twenty-nine nursing students took part in this questionnaire study after experiencing the immersive virtual reality (IVR) intervention. Participants reported largely favorable game perception and learning experience. Mean perception scores ranged from 3.21 to 4.38 of a maximum score of 5, while the mean system usability score was 53.53 of 100. The majority found that the IVR experience was engaging, and they were immersed in the game. The challenges encountered included unfamiliarity with the new learning format; technological constraints, such as using hand controllers; and physical discomfort.

Conclusions

The conception of IVR for learning clinical procedures through deliberate practice to enhance nurses’ knowledge and skills is promising. However, refinement of the prototypes is required to improve user experience and learning. Future research can explore other ways to use IVR for better education and health care purposes.
Changes in Mobile Health Apps Usage Before and After the COVID-19 Outbreak in China: Semilongitudinal Survey (Preprint)
Authors: Yang Le , Wu Jiadong , Mo Xiaoxiao , Chen Yaqin , Huang Shanshan , Zhou Linlin , Dai Jiaqi , Xie Linna , Chen Siyu , Shang Hao , Rao Beibei , Weng Bingtao , Abulimiti Ayiguli , Wu Siying , Xie Xiaoxu
Published: February 2023

BACKGROUND

Mobile health (mHealth) apps are rapidly emerging technologies in China due to strictly controlled medical needs during the COVID-19 pandemic while continuing essential services for chronic diseases. However, there have been no large-scale, systematic efforts to evaluate relevant apps.

OBJECTIVE

We aim to provide a landscape of mHealth apps in China by describing and comparing digital health concerns before and after the COVID-19 outbreak, including mHealth app data flow and user experience, and analyze the impact of COVID-19 on mHealth apps.

METHODS

We conducted a semilongitudinal survey of 1593 mHealth apps to study the app data flow and clarify usage changes and influencing factors. We selected mHealth apps in app markets, web pages from the Baidu search engine, the 2018 top 100 hospitals with internet hospitals, and online shopping sites with apps that connect to smart devices. For user experience, we recruited residents from a community in southeastern China from October 2019 to November 2019 (before the outbreak) and from June 2020 to August 2020 (after the outbreak) comparing the attention of the population to apps. We also examined associations between app characteristics, functions, and outcomes at specific quantiles of distribution in download changes using quantile regression models.

RESULTS

Rehabilitation medical support was the top-ranked functionality, with a median 1.44 million downloads per app prepandemic and a median 2.74 million downloads per app postpandemic. Among the top 10 functions postpandemic, 4 were related to maternal and child health: pregnancy preparation (ranked second; fold change 4.13), women's health (ranked fifth; fold change 5.16), pregnancy (ranked sixth; fold change 5.78), and parenting (ranked tenth; fold change 4.03). Quantile regression models showed that rehabilitation (P75, P90), pregnancy preparation (P90), bodybuilding (P50, P90), and vaccination (P75) were positively associated with an increase in downloads after the outbreak. In the user experience survey, the attention given to health information (prepandemic: 249/375, 66.4%; postpandemic: 146/178, 82.0%; P=.006) steadily increased after the outbreak.

CONCLUSIONS

mHealth apps are an effective health care approach gaining in popularity among the Chinese population following the COVID-19 outbreak. This research provides direction for subsequent mHealth app development and promotion in the postepidemic era, supporting medical model reformation in China as a reference, which may provide new avenues for designing and evaluating indirect public health interventions such as health education and health promotion.

CLINICALTRIAL
Association of Depression With Precautionary Behavior Compliance, COVID-19 Fear, and Health Behaviors in South Korea: National Cross-sectional Study (Preprint)
Authors: Shin Hyerine , Kim Ji-Su , Lee HyunHae
Published: February 2023

BACKGROUND

As of January 2022, the number of people infected with COVID-19 worldwide has exceeded 350 million. As the COVID-19 pandemic continues, people are affected in a wide range of areas of life, which in turn causes numerous psychological problems. Depression is a serious problem for people who have suffered from COVID-19. Depression can worsen COVID-19 precautionary behavior compliance or the health behavior itself. In addition, these depressive symptoms may have different characteristics depending on the individual’s gender.

OBJECTIVE

The aim of this study was to determine whether depression is a factor that may affect COVID-19 fear, precautionary behavior compliance, and health behavior, and how these characteristic trends differ by gender.

METHODS

This was a secondary analysis of data from the 2020 Korea Community Health Survey (KCHS), a national cross-sectional survey conducted with complex sampling analysis. In 2020, the KCHS included COVID-19–related questions. For this study, we used the KCHS data from both the COVID-19–related questions and the Patient Health Questionnaire-9 scale. After weighting the data according to the KCHS guidelines, we calculated the distribution of men and women according to depression level. The data were collected using multiple-choice questions related to precautionary behavior compliance, COVID-19–related fears, and health behavior changes.

RESULTS

Of the 204,787 participants, those who were clinically depressed had a greater tendency to not comply with precautionary behaviors. Regarding COVID-19, “fear” showed a decreasing trend in both men (adjusted odds ratio [AOR] 0.72, 95% CI 0.61-0.83) and women (AOR 0.74, 95% CI 0.63-0.86) with clinically relevant depression. Moreover, for both men and women, health behaviors deteriorated as depression intensified; the AOR for sleep duration changes was 2.28 (95% CI 2.00-2.59) in men and was 2.15 (95% CI 1.96-2.36) in women. Notably, the responses of clinically depressed women revealed a doubled increase in both their drinking (AOR 2.25, 95% CI 1.88-2.70) and smoking (AOR 2.71, 95% CI 1.95-3.77) habits compared with those of nondepressed women.

CONCLUSIONS

Both men and women with more severe depression were more likely to violate precautionary health behaviors as their depression worsened. Health behaviors also deteriorated for both genders, but women tended to show a greater change. Therefore, additional studies and interventions for vulnerable groups such as severely depressed people are needed. More research is also necessary to develop interventions based on statistical comparisons of men and women.
Pengaruh konsumsi cookies garut (Marantha arundinacea) yang mengandung glukomanan porang sebagai makanan selingan terhadap kadar kolesterol total penyandang diabetes mellitus tipe 2
Authors: Rahmawati Frida , Harmayani Eni , Anggraeni Vita Yanti , Lestari Lily Arsanti
Published: February 2023

Effect of consuming arrowroot cookies containing glucomannan porang as a snack on total cholesterol levels of people with type 2 diabetesBackground: People with type 2 diabetes (T2D) have a risk of dyslipidemia, which is an increase in total cholesterol levels. Dietary fiber is known to have health benefits for improving lipid profiles. Arrowroot cookies containing glucomannan porang is a snack with high dietary fiber content.Objective: This study aims to determine the effect of consuming arrowroot cookies as a snack for 8 weeks on the total cholesterol levels of people with type 2 diabetes.Methods: This study is a quasi-experimental study with a pre-test post-test design with control group. Subjects are type 2 diabetes patients who are registered in four Yogyakarta City Health Centers. The intervention group was given five arrowroot cookies (65 grams) as a substitute snack for 8 weeks. Arrowroot cookies contain 0.57% soluble fiber and 15.80% insoluble fiber. Fasting total cholesterol levels, nutrient intake, anthropometry, and physical activity were measured twice, at pre- (week 0) and post-intervention (8th week).Results: The average total cholesterol levels of the control group and intervention group changed with no significant difference between the two study groups. The intervention group experienced a significant increase in total cholesterol levels (p<0.05) from 182.36 mg/dL to 202.55 mg/dL. There were no significant changes in anthropometric and physical activity. There was an increase in fiber intake in both groups but it was not significant for the intervention group (p=0.051).Conclusion: There was a significant change in the total cholesterol level of people with type 2 diabetes after consuming arrowroot cookies containing glucomannan porang as a snack for 8 weeks.
SUB-ACUTE TOXICITY STUDY OF PEGAGAN EMBUN (HYDROCOTYLE SIBTHORPIOIDES LAM.) EXTRACT ON THE SGPT AND SGOT LEVEL OF WISTAR WHITE MALE RATS
Authors: BADRIYYA ELSA , LATIFAH WILDATUL , ALDI YUFRI
Published: February 2023

Objective: Pegagan embun (Hydrocotyle sibthorpioides Lam.) is one of the herbs used in ethnomedicines as an immunostimulant during the COVID-19 pandemic. This present study aims to discover the potential toxicity effect of pegagan embun extract through sub-acute administration on the SGPT and SGOT levels of Wistar white male rats.

Methods: Thirty-six test animals were divided into four groups: the control group was given Na CMC 0.5%, and the treatment groups were treated with ethanol extract of pegagan embun at doses of 7, 35, and 150 mg/kgBW. All groups were treated orally for 7, 14, and 21 d once daily. On the 8th, 15th, and 22nd day, the SGPT and SGOT of the test animal level were measured. The data were analyzed by two-way ANOVA followed by Duncan’s multiple range test (p<0.05).

Results: The study revealed that administration of pegagan embun extract did not cause any harmful effect on the liver but significantly decreased the level of SGPT and SGOT influenced by the variety of doses and duration of administration (p<0.05). Significant reductions in SGPT and SGOT levels are seen after extract administration at dosages of 7 mg/kgBW for 21 d.

Conclusion: This study showed that pegagan embun (Hydrocotyle sibthorpioides Lam.) extract sub-acute administration at doses of 7, 35, and 150 mg/kgBW is relatively non-toxic and safe to be used as an immunostimulant. There was no sign of damage showed in the liver of treated rats based on the levels of SGOT and SGPT.
Introduction: Transnational Memory and Traumatic Histories
Authors: Ford Joseph
Published: February 2023

Memory studies has moved from the cultural collective, rooted within the bounds of the nation state, to the transnational or transcultural, which in recent years has come to account for the circulation of “memory cultures” in an increasingly complex, globalised and violent world. In what follows, the essays in this special issue on Transnational Memory and Traumatic Histories are briefly introduced and contextualised within this transcultural framework.
Subgenres as a sign of socio-cultural change: the case of men's magazines' problem pages in the UK
Authors: De Gregorio-Godeo Eduardo
Published: February 2023

'Culture' is often said to be "one of the two or three most complex words in the English language" (Eagleton 1). Leaving aside any differentiation between 'high' and 'popular culture', this notion is herein taken from a contemporary cultural studies perspective integrating traditional anthropological approaches to the concept with a more recent sociological emphasis. As cultural theorist Stuart Hall stresses, "the word 'culture' is used to refer to whatever is distinctive about the 'way of life' of a people, community, nation or social group. [...] Alternatively, the word can be used to describe the 'shared values' of a group or of society" (2). The cultural is often conceived of as part of the social. For "the community's culture influences its social structure and vice versa; indeed both are intertwined and have been separated only for purposes of analysis" (Griswold 11).Focusing on men's lifestyle magazines as a cultural artefact in contemporary British society, this paper explores how the emergence of problem pages as a subgenre in these publications may be explained as a sign of socio-cultural change in the UK. In particular, this contribution delves into the constitution of this subgenre, and new subject positions (e.g. 'newmannism' and 'laddishness') therein articulated, within a context of masculinity crisis. As Beynon puts it, "contemporary masculinity is held to be in crisis because the central tenets upon which previous masculinity was based (patriarchy, bread-winning, tasks demanding strength) have been eroded" (159). So, after making some notes on problem pages and men's magazines in Britain, a number of extracts from problem pages in such magazines are examined. The notions of 'genre' and 'discourse' are subsequently theorized, and critical discourse analysis (henceforth CDA) is presented as an analytical resource for examining the interplay between discourse, society and culture. The status of British men's magazines' problem pages as a subgenre of its own is finally demonstrated, its evolution being finally accounted for from a CDA perspective.
Entangling Rites: the Pattern of Experience in Cormac McCarthy's All The Pretty Horses
Authors: Juge Carole
Published: February 2023

The character of John Grady Cole in All The Pretty Horses marks a clear shift in McCarthy's choices for characterization. McCarthy has also operated a change of landscape from southeast to southwest in both his previous novel, Blood Meridian, as well as in his personal life. Indeed, even though Blood Meridian's theatre was largely built on western ground, his young hero, the never-baptized "kid," was eastern born, like McCarthy. If "the moral universe [...] remains [indeed] constant" through the shift in setting, John Grady must be acknowledged as the first genuine western hero, as he is the first to be western born and bred (McMurtry 143). His genuineness as a western male avatar is slightly challenged by his father's former eastern-ness. And despite John's authenticity as a westerner, it does not seem to be "the second best thing to dyin and goin to heaven" as John Grady runs from Texas to find a new Eden in Mexico (All The Pretty Horses 17).
Desperado Literature: A Rewriting of Fear as Terror, as Illustrated by Ian Mc Ewan’s Saturday (2005)
Authors: Vianu Lidia
Published: February 2023

There are two traditions, we might argue, in the history of literature: the fairy-tale tradition (as I call it) and its opposite. The fairy-tale tradition sees the world as making sense, as leading to the happy fulfillment of expectations. Boy meets girl, boy courts girl, wins girl, marries girl – in simple or complicated arrangements. The fairy-tale tradition hinges on a linear storyline which inevitably leads to a definite denouement. The modernist movement is the first attempt at opposing the fairy tale tradition, at proving that life is not a system (‘a series of gig lamps symmetrically arranged’ – Virginia Woolf,The Common Reader), but chaos (‘a luminous halo surrounding us from the beginning of consciousness to the end’ – Woolf again).
Notes on the Terror Film
Authors: Brown Keith
Published: February 2023

The purpose of this paper—perhaps really more a set of somewhat informal notes, in the manner suggested by David Bordwell (28)—is to provide a broad brushstroke picture of the terror film from its beginnings, arguably coeval with cinema itself, to the present. It will be suggested that the terror film may be seen as something of the horror film's repressed double, going beyond horror in terms of what it has to say about the existential realities of—to borrow Hannah Arendt's term—“the human condition” in the 20th Century.
The Marquis de Sade's The 120 Days of Sodom: Revelling in the Natural Law of Libertinage
Authors: Di Ponio Amanda
Published: February 2023

Libertinage is as much a part of Nature as asceticism. This is fundamental to understanding de Sade's The 120 Days of Sodom. What is documented in the text is not the extreme perversions of Nature, but rather the other side of Nature which civilization has caused the human individual to forget, or at least deny. As this article shall show, what de Sade offers in Sodom is an image of a society that has replaced civilized practices with libertinage, thus making it the dominant doctrine.
William Blake and the Bible: Reading and Writing the Law
Authors: Farrell Michael
Published: February 2023

Samuel Beckett notes an etymological connection between the origin of the word law and the act of reading in the evolution of the Latin word lex (Beckett 11). The word lex originally meant a crop of acorns and its correlative verb legere meant to gather (acorns). Gradually, lex came to mean a gathering of peoples into an assembly - a political or legal assembly - and hence law; and the verblegere came to mean a gathering of letters into a word, to read. In the light of the notion that the Bible promotes unbounded reading, it is necessary to consider to what extent the activity of reading and interpretation is bound by law and convention.
The Politics of Dancing: Les Ballets Trockadero de Monte Carlo
Authors: Schwartz Selby Wynn
Published: February 2023

Les Ballets Trockadero de Monte Carlo (nicknamed "The Trocks") have been performing "serious" ballets en travesti since 1974. Acclaimed worldwide, the Trocks are on tour forty weeks a year. Last time they performed in New York, Time Out New York listed them as "pick of the week," in three categories simultaneously: best dance performance, best gay & lesbian event, and best children's activity (Chung). What does all this popularity mean, politically? Is it necessary to concede that the Trocks are merely another lovably harmless manifestation of drag, just as well assimilated as Mrs. Doubtfire and Dame Edna, or can we trace from their double heritage - edgy 1970's gay performance tactics, and those monumentally iconic Russian prima ballerinas - an underlying political strategy of activism and cultural relevance? In this article, I will argue that political motivation is embedded in each of these traditions, in a number of different ways. The strategies of resistance employed by the Ballets Trockadero draw on each of these inherited histories in order to mount a camp performance that confronts the tenets of gender identity, of classical ballet, of issues of race and class in the performing arts, of enforced theatrical illusion - and even of drag itself.
Charles Hawtrey, Kenneth Williams, and Susan Sontag: Campaigners of Camp and the Carry On films.
Authors: Bannister John
Published: February 2023

If Camp was the twentieth century carminative for fear of "Being-as-Playing-a-Role," (Sontag 280) Queer, its efficacy as a laxative for such a depraving "social disease" in the twenty-first century, is quite ineffective. As Roger Lewis points out, "Everything has to be Camp now, from Eddie Izzard to Graham Norton" (68). To be Camp is not to be a la commodious. It has passed into the mainstream. It is a la mode. How has this happened? Homosexuality had to be douched by lavatorial comedy.
Dude Looks Like A Lady: Straight Camp and the Homo-social World of Hard Rock.
Authors: Burton Jack
Published: February 2023

Madison Square Garden. 1973. Robert Plant, the 25 year old singer and frontman of Led Zeppelin, undoubtedly the world's biggest rock band, takes to the stage in front of another sell out crowd. He is dressed in his trademark outfit of blue denim jeans and snakeskin boots. His torso is conspicuously left uncovered beneath a blue shirt several sizes too small. His muscular biceps are hugged by its gathered sleeves, presumably worn with the intention of creating a sense of oriental opulence but actually suggesting nothing more exotic than a woman's blouse. As he flicks aside his lustrous mane of blond curls he delivers the opening lines of Black Dog in his trademark high-pitched wail; "Hey, hey, mama. Said the way you move. Gonna make you sweat. Gonna make you groove."As this short description shows, Plant exhibits the androgynous appeal of the classic rock god in all his glory. That this androgyny came to function as a social marker of absolute masculinity, however, suggests a far more complex interplay of identities within the hard rock genre than the more obviously playful ambiguities explored by gender pioneers like David Bowie or Prince. That Robert Plant continues to be all man, while simultaneously looking and sounding like a woman, suggests that the straight camp of the rock god provides a more complex function than the questioning of gender roles. To discover what this function is, and its central role in the hard rock genre's categorization as a virtual bastion of unreconstructed masculinity, we must begin by sketching a brief history of its musical roots.
Camp Cures (the Stigma of Illness). Escaping the Tyranny of Caring, Charity, and Positive Thinking in Adam Mars-Jones' "Slim"
Authors: Lassen Christian
Published: February 2023

In the slang of the caring profession, there is an enduring use of the personal pronoun "we" whose infantilising effect â€“ and I am sure "we" all share this view - is indeed hard to endure. Pronoun it may be, personal it surely isn't. On a larger scale, the inadequacy of this pathetic, in fact pseudo-empathetic, babble becomes increasingly apparent, especially for two reasons whose incompatibility exposes the true dimension of the dilemma. Firstly, this sort of talk excruciatingly extends into an overkill of compassion, well-meaning, and good advice, whose self-righteousness in time results in normative stereotypes of healthy living: positive thinking, creative visualisations, and not least, physical exercise. Secondly and simultaneously, though, this tyranny of caring can barely conceal the fact that illness is still widely viewed as a stigma. Entering the present discourse of HIV and AIDS at this point, one can hardly fail to notice that it is this very stigma that increasingly forces gay men into normative spectacles of health, even though, as Dollimore accurately contends, "contesting these negative representations (homosexuality = pathology = death) could never be just a question of substituting positive ones (homosexuality = health = life)" (Dollimore, Death, Desire and Loss xi). Put simply, there is urgent need for a cure against the stigma of illness, a cure that successfully counters both the debilitating, indeed incapacitating, treatment of the patient and his called-for charade of healthy living. One such cure is camp.
Musical Apocalypse: Tom Waits’ Bone Machine
Authors: Jones Angela
Published: February 2023

Apocalypse derives from the Greek apocalypsis, meaning the act of uncovering, unveiling, or revelation. While the apocalyptic theme or genre continues to inform and inspire a number of different media and discourses into the twenty-first century, the representation of apocalypse within popular music remains a largely overlooked field of enquiry. Therefore in this paper I would like to discuss Tom Waits' 1992 CD, Bone Machine, as a popular musical rendition of the apocalyptic theme, in order to explore what the apocalyptic might sound like, were it to be rendered musically. To do so, I will be drawing on Jacques Derrida's essay "Of an Apocalyptic Tone Recently Adopted in Philosophy," in which he formulates an understanding of the apocalyptic as "tone": the "revelator of some unveiling in process." Like Derrida's apocalyptic tone, Bone Machine can be interpreted as registering an idea of the apocalyptic as process and movement, wherein the act of revelation is conceived as a continual, often turbulent and confusing, unveiling. This apocalyptic process is registered both through the album's production - wherein the sounds are continually being stripped back and built on to one another to form unstable, transient song structures - and through its vocal delivery - which foregrounds the way in which tone can subvert and destabilize the meaning of the lyrics. The result is an idea of apocalypse which is not simply an ending to a narrative trajectory, nor which relies on genre-specific imagery or themes, but rather which obscures as much as it reveals, always drawing attention back to itself as a revelatory gesture. Indeed, the apocalyptic tone destabilizes and undermines some of the dominant assumptions central to narrative-based understandings of apocalypse, and as such my analysis aims to foreground the ways in which Bone Machine enables an original and, at times, subversive musical perspective on what has proven to be a remarkably resilient cultural theme.
This is the End: Earth First! and Apocalyptic Utopianism
Authors: Mikulak Michael
Published: February 2023

This essay looks at the role of violence within radical environmentalist groups, such as ELF or Earth FIRST!, that engage in or support the use of ecotage or monkeywrenching. By looking at the philosophical underpinnings of monkeywrenching in terms of apocalyptic and utopian discourses within the movement, the author argues that violence against property functions to create a form of subjectivity that can account for the dialectic tension and irreconcilability of utopian and apocalyptic discourses within the group. This tension, with its simultaneous elevation and denigration of the Human, is fundamental to the ecological subjectivity of the members and allows them to act despite a truly apocalyptic belief in the reality of biological meltdown.In addition to providing a way to escape paralysis within such an apocalyptic framework, the eco-warrior functions within the group as well as within larger environmental circles to provide a counter-narrative to benign images of industrial progress by providing an archetypal figure of resistance that marries the modern-primitive, nature-culture, and apocalyptic-utopian together. As such, the author argues that the narrative violence of the eco-warrior provides a way to mobilize a very disparate group of people on the margins of both society and more 'legitimate' environmental groups.