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2. An Historical Analysis of the Library Technology as Described and by Practitioners: Exploring Themes in VALA Conference Papers.
- Author
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Haden, Katie P.
- Subjects
- *
CONFERENCE papers , *HISTORICAL analysis , *TECHNOLOGY conferences , *INFORMATION services , *CONTENT analysis , *LIBRARY conferences , *LIBRARY science - Abstract
Conference proceedings are valuable sources for research, providing insights into individual or organisational projects. Australian library and information services (LIS) professionals have the opportunity to contribute to a robust conference culture, including the biennial library technology VALA conference. Practice-driven conferences can offer interpretations of LIS practitioner experiences, however, there is limited research focusing on Australian LIS conference proceedings. The VALA conference papers offer a unique record of technology's impact, influence, and implementation in Australian LIS organisations over the last forty years. This article will outline the objective and methodology of an ongoing research project undertaking historical analysis of VALA conference papers. The research project seeks to examine key themes, theories, and tools discussed in VALA conference papers and will attempt to identify if evolving technology influences the practices and attitudes of Australian LIS practitioners. The article will identify the research methods and the content analysis techniques that will be used in the project, and present preliminary results from a pilot study presented at the 2023 RAILS conference. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Influence of Ethically-Minded Consumer Behavior, Digital Citizenship, and Retailers' Green Positioning on the Effectiveness of Store Flyer Sales Promotions (Paper vs. Digital).
- Author
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Costa, Ana Sofia and Azevedo, António
- Subjects
- *
ELECTRONIC paper , *CONSUMER behavior , *ORGANIZATIONAL citizenship behavior , *SALES promotion , *PRODUCT positioning , *SUSTAINABILITY - Abstract
This study evaluates the impact of sales promotions that are featured in store flyers distributed by prominent retailers and their capacity to attract consumers to their establishments. A distinctive conceptual framework is introduced that scrutinizes the influence of ethically-minded consumer behavior, digital citizenship/literacy, and a retailer's orientation toward environmental sustainability and explicit ecological concerns. A quasi-experimental design was used to formulate four distinct scenarios from a possible set of eight, stemming from the combinations of three variables: 2 Retailer Positioning (green vs. without explicit ecological claims) × 2 Flyer Mediums (paper vs. digital) × 2 Discount Levels (5% discount vs. 30% discount). Through an online survey, a sample of 269 responses was garnered to gauge consumer reactions to these store flyers, evaluating their attitudes and receptiveness. The findings suggest that attitudes toward paper flyers were more favorable when presented by non-green retailers compared to their green counterparts. This can be attributed to a perceived inconsistency between a green brand positioning and the use of paper flyers. Furthermore, the propensity to transition to digital flyers was notably stronger for green retailers compared to non-green retailers, but this inclination was most pronounced when higher discounts were offered. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. Early Cold War intelligence paper mills: the case of the Association of Hungarian Veterans.
- Author
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Lynn, Katalin Kádár and Stout, Mark
- Subjects
- *
COLD War, 1945-1991 , *PAPER mills , *SWARM intelligence , *VETERANS - Abstract
During the early Cold War, it was difficult for American intelligence to penetrate the Iron Curtain but a potential solution soon arose: émigré intelligence groups such as the Magyar Harcosok Bajtársi Közössége (MHBK) or 'Association of Hungarian Veterans'. This group, however, turned out to be an intelligence 'paper mill'. Attempts at trans-Atlantic cooperation with the MHBK and similar groups failed as they lost most of their good sources and were penetrated by communist security services. By the mid-1950s, US intelligence cut these groups off, took over their good sources, and established a source registry to prevent recurrence of the problem. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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5. Green isolation of cellulosic materials from recycled pulp and paper sludge: a Box-Behnken design optimization.
- Author
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Suter, Evans K., Rutto, Hilary L., Seodigeng, Tumisang S., Kiambi, Sammy L., and Omwoyo, Wesley N.
- Subjects
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CELLULOSE nanocrystals , *RECYCLED paper , *PAPER pulp , *CELLULOSE fibers , *RESPONSE surfaces (Statistics) , *HYGIENE products , *ENVIRONMENTAL remediation , *GREEN technology - Abstract
Cellulose was isolated from recycled pulp and paper sludge and used to synthesize cellulose nanocrystals. Response surface methodology and Box-Behnken design model were used to predict, improve, and optimize the cellulose isolation process. The optimal conditions were a reaction temperature of 87.5 °C, 180 min with 4% sodium hydroxide. SEM and TEM results revealed that the isolated cellulose had long rod-like structures of different dimensions than CNCs with short rod-like structures. The crystallinity index from XRD significantly increased from 41.33%, 63.7%, and 75.6% for Kimberly mill pulp sludge (KMRPPS), chemically purified cellulose and cellulose nanocrystals, respectively. The TGA/DTG analysis showed that the isolated cellulosic materials possessed higher thermal stability. FTIR analysis suggested that the chemical structures of cellulose and CNCs were modified by chemical treatment. The cellulose surface was highly hydrophilic compared to the CNCs based on the high water holding capacity of 65.31 ± 0.98% and 83.14 ± 1.22%, respectively. The synthesized cellulosic materials portrayed excellent properties for high-end industrial applications like biomedical engineering, advanced materials, nanotechnology, sustainable packaging, personal care products, environmental remediation, additive manufacturing, etc. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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6. Low-temperature hydrothermal modification of waste paper fiber adsorbent to enhance removal benzothiophene sulfide efficiency from oil: kinetics and equilibrium study.
- Author
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Tang, Xiao-Dong, Zhang, Ting, Ran, Gang, and Li, Jing-Jing
- Subjects
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WASTE paper , *ADSORPTION kinetics , *ADSORPTION isotherms , *ACTIVATED carbon , *SULFIDES , *ADSORPTION capacity - Abstract
Thiophene sulfide is difficult to be removed by hydrodesulfurization. In this study, ZnCl2-waste paper fiber activated carbon was used as adsorbent to remove thiophene sulfide from simulated oil by hydrothermal modification. Under the optimum condition of ammonia modification, the adsorption capacity of modified adsorbent to BT is 14.8 mg S/g, 2.98 times that of unmodified. BET, FTIR and Boehm analysis showed that the mesopore volume of ammonia modified adsorbent increased by 96.62% and the mesopore ratio increased from 12.58% to 43.40%, which was conducive to improving the adsorption rate. After modification, the basic groups on the surface of the adsorbent increased by 44.3 times, and –NH3+, –OH and –NH2 enhanced the electron attraction and hydrogen bonding force between the adsorbent and BT molecule. Adsorption isotherms, adsorption kinetics and adsorption thermodynamics show that the adsorption process is spontaneous, entropic and exothermic. The pseudo-second-order kinetic rate constant increases with the increase of adsorption temperature, indicating that the increase of temperature is beneficial to accelerate the adsorption rate. The adsorption desulfurization process follows the mechanism of single and multilayer adsorption mixing. The results of this study can help to reveal more clearly that biobased activated carbon can be modified to adsorb thiophene sulfide. Ammonia modified adsorbents enhance the adsorption capacity for benzothiophene [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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7. Analysis of per- and polyfluoroalkyl substances (PFAS) in raw materials intended for the production of paper-based food contact materials – evaluating LC-MS/MS versus total fluorine and extractable organic fluorine.
- Author
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Jovanović, Milica, Müller, Viktoria, Feldmann, Jörg, and Leitner, Erich
- Subjects
- *
FLUOROALKYL compounds , *TANDEM mass spectrometry , *RAW materials , *LIQUID chromatography-mass spectrometry , *FLUORINE , *PACKAGING recycling - Abstract
Per- and polyfluoroalkyl substances (PFAS) analysis has become crucial due to their presence in the environment, their persistence and potential health risks. These compounds are commonly used in food contact materials (FCM) as a coating to provide water and grease-repellent properties. One of the pathways for PFAS to enter the human body is either through direct consumption of contaminated food or indirectly through migration from FCM into food. The purpose of this study was to investigate where the initial contamination of paper FCM occurs. We analysed paper material consisting of fresh fibre and secondary materials, intended to produce food packaging for the presence of PFAS. The samples were extracted and analysed for 23 different PFAS substances using the targeted approach with LC tandem mass spectrometry (LC-MS/MS). This analytical technique detects specific, easily ionisable PFAS with high sensitivity. However, one drawback of this approach is that it allows the identification of less than 1% of the PFAS known today. For this reason, we used combustion ion chromatography (CIC) to determine the content of extractable organic fluorine compounds (EOF) and compare it to the total fluorine content. The targeted analysis using LC-MS/MS measured an average sum concentration of PFAS of 0.17 ng g−1 sample. Our research shows that the primary PFAS contamination happens during the recycling process since all of the samples in which the targeted PFAS were measured belonged to the secondary material. The most frequently detected analytes were PFOA and PFOS, detected in 90% and 62% of the samples, respectively, followed by PFBS (in 29% of the samples). CIC showed that measured PFAS via LC-MS/MS amount to an average of 2.7 × 10−4% of total fluorine content, whereas the EOF was under the LOD in all of the measured samples. This result highlights the complexity of the accurate determination of PFAS compounds, displaying what kind of information the chosen methods provide. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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8. From Paper Fibers to Practical Conservation Experiences: The <italic>International Paper Conservation Seminars</italic> in Latin America.
- Author
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Quitral, Yerko Andrés
- Abstract
The
International Paper Conservation Seminar has now been held as four face-to-face events and four online events. It is a three-day international event delivered in Spanish and Portugese with keynote talks from national and international conservation professionals from Mexico to Chile presenting projects covering works on paper in diverse formats including documents, photographs historic books, and artworks. Countries such as Argentina, Chile, Bolivia, Peru, Ecuador, Mexico, Paraguay, Uruguay, Colombia, Brazil, Spain and Costa Rica have sent delegates to discuss both the social and cultural aspects of conservation work. The seminar is a completely free event for its attendees. It is intended to be suitable for all, with high-level talks addressing issues of management, preservation, conservation, restoration and disaster recovery among many others. From the third event onwards, training workshops for basic treatments have been developed, with the participation of recognized conservation professionals from universities and international institutes, allowing the number of attendees to remain constant since the Covid-19 pandemic. It creates networks and fosters collaboration for professional and institutional projects. The seminars have generated a connected and active community of paper conservators in the region, aware of our limitations, and capable of solving problems collaboratively and according to local resources. [ABSTRACT FROM AUTHOR]- Published
- 2024
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9. Experimental analysis of convective drying of paper and board.
- Author
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Sampath, Koushik, Reynolds, Leonard, Huang, Hua-Jiang, and Ramaswamy, Shri
- Subjects
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CARDBOARD , *NANOFLUIDICS , *MASS transfer coefficients , *CONVECTIVE flow , *AIR flow , *MASS transfer , *YIELD stress , *ATMOSPHERIC temperature - Abstract
Conventional multi-cylinder drying of paper and board involves a mixture of conductive drying from steam-heated dryer cylinders and convective drying by the flow of heated air over the surface of the paper web in the pockets. Pocket ventilation is a critical component in assisting heat and mass transfer during the drying process but is the primary contributor toward removing evaporated water from the web. Air temperature, velocity, and humidity are critical parameters involved in the convective drying process. This paper covers an experimental study involving the design and development of a small lab-scale setup for convective drying of various grades of paper and board, monitoring multiple parameters like paper temperature, moisture content, air humidity, temperature, and velocity measured in situ as the drying proceeds with continuous and accurate sampling capabilities for all parameters in the sample and the system. Instantaneous drying rates, heat, and mass transfer coefficients were also deduced for every time step till the paper completely dried. Furthermore, the coefficients obtained were also reported in the form of dimensionless correlations, and the results were compared against traditional correlations used in the modeling of paper drying. This data will be useful in process development, modeling, design, and the paper drying process simulation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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10. Recycled pulp and paper sludge, potential source of cellulose: feasibility assessment and characterization.
- Author
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Suter, E. K., Rutto, H. L., Seodigeng, T. S., Kiambi, S. L., and Omwoyo, W. N.
- Subjects
- *
RECYCLED paper , *PAPER pulp , *POLYCYCLIC aromatic compounds , *CELLULOSE , *HEMICELLULOSE , *PAPER industry - Abstract
The pulp and paper industry stands out as an example of a technology based on a renewable resource, cellulose. The sludge, however, poses major environmental and public health problems. To effectively manage the sludge wastes, it is critical to fully evaluate its composition, possible environmental impacts, and the total amount of exploitable renewable resources. The study established the pH of the sludge to be 7.32 ± 0.98, an electrical conductivity (1.84 mS/cm), nitrogen concentration (2.65 ± 0.21%), and total organic matter (41.23 ± 3.11%). The cellulosic content was established to be 74.07 ± 2.71% which contributes to 53.07 ± 1.23% water holding capacity (WHC). The most abundant elements were C and O, followed by Cl, Si, Al, and Mg, with lower concentrations of S, Si, K, and iron. The polycyclic aromatic compounds (PAHs) levels ranged from 0.29 to 322.56 ng.g-1 with 1-methyl pyrene posting the highest concentration (322.56 ng.g-1. XRD peaks at 17.10°, 23.86°, 30.14°, and 36.57°, which imply the existence of CaCO3. SEM indicated that the sludge was majorly comprised of fibers materials with average particle sizes of 280 micrometers. TGA/DTG analysis showed that the sludge had the greatest cellulose and hemicellulose (64.7 wt. %). [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
11. The Paper Towels Challenge: an open-ended scientific inquiry activity to promote science understanding, scientific skills and 21st century skills.
- Author
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Ahr, Emmanuel, Potvin, Patrice, Charland, Patrick, Chastenay, Pierre, Brault Foisy, Lorie-Marlène, Bruyère, Marie-Hélène, Boissard, Bénédicte, and Cyr, Guillaume
- Subjects
- *
SCIENTIFIC method , *PAPER towels , *TWENTY-first century , *CRITICAL thinking , *SCIENCE education - Abstract
This article introduces a flexible and easy-to-implement open-ended scientific inquiry activity called the Paper Towels Challenge. After experimentally determining which of three unbranded paper towels is the most absorbent, students discuss their results and methods. The teacher facilitates the discussion of epistemological issues. This activity can be used regardless of the participants' age or country to promote science understanding, NGSS science and engineering practices, and twenty-first century skills, such as critical thinking and communication. The many uses, benefits, and possible adaptations of the activity are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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12. The doing of Danish Upper Secondary School in 1968. Student papers as cases of negotiation surrounding the curriculum.
- Author
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Ljungdalh, Anders and Qvortrup, Ane
- Subjects
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SECONDARY schools , *CURRICULUM , *NEGOTIATION , *EDUCATIONAL change , *TEXTBOOKS - Abstract
The history of subjects is often told analysing notions of knowledge in historical reforms, policies, curricula, and textbooks. In this article, we analyse student papers from 1968, focusing on their responses to the topic 'Social distinctions and prejudices in Denmark'. The students present a number of concepts and categories of social differences and prejudices, depict a contemporary problem, refer to theoretical or categorical frameworks, provide a historical account, state bold claims and/or present conceptual definitions. Then, by giving different examples from their everyday life and by establishing some form of line or structure in their writings, they form an argument or narrative. They do this by using—we assume—information from their textbooks, from what have been discussed in teaching, in the public debate, and in the students' homes. The student papers not only passively reflect but are part of the ongoing constitution of the subjects and subject matter, during a period of tremendous educational change. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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13. White paper on forensic child interviewing: research-based recommendations by the European Association of Psychology and Law.
- Author
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Korkman, J., Otgaar, H., Geven, L.M., Bull, R., Cyr, M., Hershkowitz, I., Mäkelä, J.-M., Mattison, M., Milne, R., Santtila, P., van Koppen, P., Memon, A., Danby, M., Filipovic, L., Garcia, F.J., Gewehr, E., Gomes Bell, O., Järvilehto, L., Kask, K., and Körner, A.
- Abstract
This white paper consists of evidence-based recommendations for conducting forensic interviews with children. The recommendations are jointly drafted by researchers in child interviewing active within the European Association of Psychology and Law and are focused on cases in which children are interviewed in forensic settings, in particular within investigations of child sexual and/or physical abuse. One particular purpose of the white paper is to assist the growing Barnahus movement in Europe to develop investigative practise that is science-based. The key recommendations entail the expertise required by interviewers, how interviews should be conducted and how interviewers should be trained. Interviewers are advised to use evidence-based interview protocols, engage in hypothesis-testing and record their interviews. The need to prepare the interview well and making efforts to familiarise the child with the interview situation and create rapport as well as acknowledging cultural factors and the possible need for interpretation is underscored, and a recommendation is made not to rely on dolls, body diagrams and the interpretation of drawings in the interviews. Online child interviewing is noted as showing promising results, but more research is warranted before conclusive recommendations can be made. Interviewers should receive specialised training and continuous feedback on their interviews. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
14. Development of Starch Nanoparticles as a Green Consolidant for Paper-based Objects: Synthesis and Design.
- Author
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Rawat, Ashna and Pandey, Satish C.
- Abstract
Starch is one of the oldest adhesives, and has been utilised for a variety of applications, including as a consolidant for artworks and archives, after cooking. Although widely available, cost-effective, and versatile it has limitations such as large particle size, which makes it challenging for the adhesive to penetrate deeply into objects. Attempts to increase the concentration of starch adhesives for enhanced strength often lead to increased viscosity, hindering penetration and causing an undesirable film on the surface. Achieving a workable consistency often leads to reduced adhesive power. An approach to using nanosized starch as a binder for paper and cellulose-based objects is presented. Starch nanoparticles (SNPs) from wheat, rice, maize and waxy maize were successfully synthesised using a ‘top-down’ approach that is facile as well as energy efficient. Size distribution measurements indicate most particles to be less than 50 nm, smaller than the pore size of most historic papers. SNPs could make a better sizing adhesive than traditionally-made starch paste, and they are also a green alternative to a variety of chemically formulated, organic solvent-based adhesives. The compatibility, non-toxicity, and biodegradability of starch remained uncompromised during the modification. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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15. Cu-immobilized cellulose filter paper: effect of polymer structure and functionality on catalytic activity and reusability for 4-nitrophenol reduction.
- Author
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Inthanusorn, Wasawat, Tummachote, Jakkrit, Jangpon, Nattanicha, and Rutnakornpituk, Metha
- Abstract
Cellulose filter paper (CFP) was modified with poly(acrylic acid) (PAA) and/or poly(ethylene glycol)methacrylate (PEGMA), followed by Cu immobilization for 4-nitrophenol (4NP) reduction. Among these samples, Cu-immobilized CFP modified with PEGMA polymer (CFP@PEGMA-Cu) exhibited the highest Cu incorporation of 2.21%. Those having the copolymer (CFP@PAA-co-PEGMA-Cu) demonstrated the highest efficiency, completing 4NP reduction in 3 min with an impressive 99.45% conversion, a high-rate constant (k) of 27.5 × 10−3 s−1, and turnover frequency (TOF) of 18.36 h−1. Notably, the catalysts containing PAA maintained good reusability, preserving 97% conversion upon 9 cycles. These results suggest their promising applications in sustainable catalysis, offering the catalytic potential with simple preparation and low cost required. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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16. Sustainable Preservation of Photographs in a Hot and Humid Climate: Dry Cabinets and Metal–Organic Framework Paper Composites.
- Author
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Lavédrine, Bertrand, Dupont, Anne-Laurence, Tignol, Pierre, Serre, Christian, Pimenta, Vanessa, Pinto, Moisés L., and Mohtar, Abeer Al
- Abstract
In a project to preserve photographic archives in Southeast Asia, the authors sought to develop sustainable solutions with low environmental impact, avoiding air conditioning and using locally available materials. Dry cabinets were tested and implemented to store a glass plate negative collection that was rehoused in envelopes and boxes made locally. The project took just over a year to complete, and two years of monitoring environmental conditions have shown that relative humidity can be stabilized at low levels. However, the dry cabinets are airtight to limit the introduction of moisture and dust, preventing air exchange. In order to avoid the build-up of degradation by-products released by the stored materials, and in particular off-gassing of acetic acid from the cellulose acetate-based photographs, the use of an adsorbent is necessary. To achieve this, a cellulose-based composite with particles of a porous hybrid inorganic/ organic solid, denoted as a metal–organic framework (MOF), at a very high loading over 70% by weight and shaped as a sheet of paper, has been prepared and tested. This special paper maintains acetic acid-free air in the cabinets and also helps to reduce the energy consumption by reducing the need for cool storage. This MOF paper composite traps small carboxylic acids and was found to be an appropriate solution for maintaining clean air in the dry cabinets or any other confined space or enclosure. Additionally, it can also be designed to trap other noxious pollutants such as hydrogen sulfide or formaldehyde, by choosing other MOFs. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
17. Teaching and learning angles in elementary school: physical versus paper-and-pencil sequences.
- Author
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Munier, Valérie and Devichi, Claude
- Subjects
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ELEMENTARY schools , *GEOMETRY , *PHYSICS , *GRADING of students , *VIDEO tapes - Abstract
This paper discusses the relevance of using physical situations to introduce the concept of angles at elementary school. We compare the effectiveness of two geometry teaching sequences. In the first one (physical sequence), the pupils learned the angle concept by experimenting on the playground (i.e. mesospace) and then modelling the situation. In the second one (paper-and-pencil sequence), the pupils worked solely in the space of a sheet of paper (i.e. microspace). In both sequences, pupils compared areas of space delineated by an angle between two directions. Pupils in two Grade 3 classes were exposed to one of the two teaching sequences. The unfolding of these sequences was videotaped and analyzed, and the pupils were tested individually, before and after teaching, to measure each sequence's effectiveness. Results showed that both sequences are effective to grasp the angle concept: Most pupils overcame the common erroneous conception of comparing angles' sides' lengths instead of angle openness. The comparison of areas of space delineated by an angle between two infinite directions, which is the two sequences' common core, seems to be the key factor underlying angle conceptualization. This paper ends with a discussion of these results' teaching implications and the merits of each sequence. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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18. Revisiting "An Unknown Woman": A Look at Freud's Paper Through the Lens of Hans Loewald.
- Author
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Ofer, Gila
- Subjects
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HUMAN sexuality , *LESBIANISM , *HOMOSEXUALITY , *VOICE disorders , *PARENTS - Abstract
In his paper "The Psychogenesis of a Case of Homosexuality in a Woman" (1920), Freud tried to outline a general psychoanalytic approach to homosexuality by recounting the case of an 18-year-old girl sent to him by her father. The case, as told by Freud, makes for awkward reading today. Loewald's theory of developmental narrative, differentiation, linking, and his notion of parricide as the individual giving voice to one's self, offers a different lens through which to view it. Although Loewald did not write directly about the issue of homosexuality, in boys or girls, in "The Waning of the Oedipus Complex" he gives voice to the inner processes of separation and linking from parents, leading to mourning, through which the adolescent has to go. In this paper, I offer a reading of the Freud case using Loewald's theory, which enables us to highlight homosexuality as a variation in the expression of human sexuality, rather than a pathological deviation as Freud implies, and presents the "unknown woman" as struggling with difficulties in mourning. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
19. Annotated Bibliography of Selected Papers Dealing with the Health Benefits and Risks of Fish and Seafood Consumption.
- Author
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Tacon, Albert G. J., Coelho, Rafael T. I., Levy, Jéssica, Machado, Thaís M., Neiva, Cristiane R. P., and Lemos, Daniel
- Subjects
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SEAFOOD , *PERSISTENT pollutants , *BIBLIOGRAPHY , *FOOD of animal origin , *BONE health , *ANTIBIOTIC residues - Abstract
A descriptive annotated bibliography is presented of recent selected publications dealing with the reported health benefits and risks of fish and seafood consumption; fish and seafood including farmed and wild-caught finfish, crustaceans, mollusks, and seaweeds. The bibliography is presented in four parts, namely (1) review papers dealing with both the health benefits and risks of fish and seafood consumption, (2) specific papers dealing with health benefits related to: antioxidants; bone health; brain and mental health; cancer prevention; diabetes prevention; elderly and senior adults; fermentation; heart health and hypertension; immune response and allergies; infant and child health; lipids, fatty acids and sterols; minerals and trace elements; obesity and overweight reduction; polysaccharides; pregnancy and gestational health; proteins, peptides and amino acids; and vitamins and bioactive compounds; (3) specific papers dealing with health risks related to: algal blooms and shellfish biotoxins; antibiotics use and residues; cancer risks; chemicals; chronic kidney disease; microbial quality and safety; microplastics; minerals and heavy metals; parasites and pathogens; pesticides and persistent organic pollutants; public perception and media; seafood allergy; and smoking risks; and (4) supporting papers dealing with consumption advisories and dietary guidelines; improved decontamination and processing methods; and fish, food and nutrient security. A total of 552 papers are presented together with their annotated summaries. On the basis of the papers presented in this review, it is believed that the higher nutritional value and health benefits derived from increased fish and seafood consumption far out-way the potential negative risks to human health, and as such fish and seafood represent a valuable and much healthier alternative than processed fast-foods and many terrestrial animal food products in the global fight against heart disease and related health ailments. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
20. Prescribing Practices at a Residential Treatment Center – from Paper to Plastic (Computers).
- Author
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Tooley, Jacob, Carpenter, Rachel, Hubbard, Maya L, Fanslau, Edmund B., Hochstetler, Emily, Ngo, Jeannie, Curry, Tyler, and Roley-Roberts, Michelle E.
- Subjects
- *
COVID-19 pandemic , *MEDICATION errors , *PSYCHIATRIC treatment , *ELECTRONIC health records , *ELECTRONIC paper , *INSTITUTIONAL care - Abstract
Medication prescription procedures were reviewed at psychiatric residential treatment centers (RTC), and a quality improvement project was conducted in order to implement integrated electronic medical records (EMR) and computerized provider order entry (CPOE). To assess the impact of preexisting prescribing practices on RTCs, surveys were sent anonymously to current and past providers of regional and local RTCs. The surveys assessed the impact of the prescribing protocol on workflow, the frequency of medication errors, the impact such errors had on patient care, the overall provider satisfaction, and the discrepancies between electronic and paper charts. Current providers were then re-surveyed after implementing the integrated CPOE system in May 2020, during the COVID-19 pandemic. The first round of provider survey results revealed that the majority of staff (n = 10, 70%) observed frequent medication errors and were largely dissatisfied with the current medication ordering and administration process (n = 10; 70%). Incident Response Improvement System (IRIS) reports revealed the most common medication errors were omissions, incorrect dosing, and incorrect medications administered. After the initiation and implementation of the CPOE, staff satisfaction increased with the process (n = 14; 50%) noting that medication errors were less frequent than before (n = 14; 50%). [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. A crucial note on stress-strength models: Wrong asymptotic variance in some published papers.
- Author
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Saber, Mohammad Mehdi and Taghipour, Mehrdad
- Subjects
- *
MAXIMUM likelihood statistics - Abstract
The purpose of this note is to point out a problem related to stress-strength models in some published papers. This difficulty has occurred in the asymptotic variance of the maximum likelihood estimator of the stress-strength parameter. The asymptotic variance will be studied in general and then in the mentioned papers. Finally, the correct version of asymptotic variance is computed. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. Freehand drawing activity: a comparison between tablet-finger vs paper&crayon throughout time.
- Author
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Paule Ruiz, MPuerto, Sánchez Santillán, Miguel, and Pérez-Pérez, Juan Ramón
- Subjects
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MOBILE apps , *MOTOR ability , *PORTABLE computers , *GRAPHIC arts , *PHYSIOLOGICAL adaptation , *DATA analysis , *RESEARCH funding , *DRAWING , *CLINICAL trials , *INTERVIEWING , *DESCRIPTIVE statistics , *CHI-squared test , *CREATIVE ability , *TEACHERS , *ONLINE education , *COLLEGE teacher attitudes , *ANALYSIS of variance , *STATISTICS , *COMPARATIVE studies , *VISUAL perception , *DATA analysis software , *CHILDREN - Abstract
The apps for drawing are present in our children's life. Nevertheless, little is known about the impact of mobile technology on the freehand drawing educational activity. There are few works which are contextualised within short periods of time, with teachers who are not theirs and, in some cases, outside the children's classroom. In this paper, we are focussed on the use of technology on freehand drawing activity. Thus, we have compared the graphics produced by 4- and 5-year-old children with paper&crayon in comparison with those with tablet-finger. Children made the drawings during a planned free-drawing activity, in their ordinary classrooms, with their teachers and during five sessions. Assessment of drawings has evidenced tablet feasibility for making graphics. Nevertheless, with the passing of time, quality of graphics (tablet-finger vs paper&crayons), are nearly matched, demonstrating the low impact level technology has on this activity. In addition, if drawings are analysed specifically according to ages, results have shown that both groups have to develop adaptation strategies of visual perceptual skills and fine motor skills for the touch screen in order to obtain the same quality in the drawings made on both support types. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
23. "Who is Isobel and where did she come from?": Response to Amanda Kottler's paper.
- Author
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Weisel-Barth, Joye
- Subjects
- *
DEVELOPMENTAL psychology , *EMOTIONAL state , *PSYCHOANALYTIC theory - Abstract
This article is a response to Amanda Kottler's paper on the concept of multiple self-states and the role of writing in understanding clinical moments. The author, Joye Weisel-Barth, discusses the symbolic presence of Isobel in Kottler's paper and how it represents a hidden self-state that brings about transformative experiences. Weisel-Barth also explores the use of fiction as a tool for self-discovery and emphasizes the importance of aesthetic engagement in uncovering hidden aspects of oneself. The article highlights the power of writing and imagination in gaining a deeper understanding of the self, and encourages readers to consider the broader implications of psychoanalysis in understanding the self and its connection to the surrounding environment. [Extracted from the article]
- Published
- 2024
- Full Text
- View/download PDF
24. Emotion, cognitive load and learning achievement of students using e-textbooks with/without emotional design and paper textbooks.
- Author
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Chang, Chi-Cheng and Chen, Tseng-Chuan
- Subjects
- *
ELECTRONIC textbooks , *ACADEMIC achievement , *EMOTIONS , *COGNITIVE load , *COLLEGE freshmen - Abstract
This study aims to explore how e-textbooks with emotional design affect students' emotion, cognitive load and learning achievement. There were 147 freshman students in total: the experimental group I, II and control group consisted of 49, 47 and 51 students, using e-textbooks with emotional design, without emotional design and traditional paper textbooks. The results reveal the following: Students' emotion after using e-textbooks with emotional design is more positive than those using e-textbooks without emotional design and paper textbooks. Students' cognitive load after using e-textbooks with emotional design is significantly lower than those using etextbooks without emotional design. Students' learning achievement after using two types of e-textbooks is better than after using paper textbooks. Comparing all types of textbooks altogether, emotion has a significantly positive correlation with learning achievement, and both emotion and learnng achievement are significantly and negatively correlated with cognitive load. For the three types of textbooks, the relationship between emotion and learning achievement all becomes not significantly correlated. For two types of e-textbooks, cognitive load and learning achievement become not significantly correlated, disturbed by the digitalization of textbooks. Instructors are suggested to firstly adopt e-textbooks with emotional design, those without emotional design secondly, and paper textbooks rank last. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
25. If you call for papers, the papers call back at you: some thoughts on CfP and selection processes.
- Author
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Poster-Su, Tobi
- Subjects
- *
CONFERENCES & conventions , *PERFORMANCE theory , *RACE , *PUPPET theater - Abstract
In her 'Manifesto to Decentre Theatre and Performance Studies' (2021), Swati Arora explores the intangible and invisible borders that function to exclude certain people and knowledges, usually indexed by race, gender, class, and geography, from the academy. As a new working group convenor, I'm interested in thinking through what hidden borders might operate through the Call for Paper and panel selection process. What are prospective panellists really being asked to demonstrate? What unofficial knowledges are privileged and who has access to these? How can we reorient this process towards questioning and away from demonstration of knowledge? In this short provocation I reflect my own experience of selecting abstracts and ask what work might be done to develop a more transparent and empowering model of panel curation. This is a short provocation that was prepared for the roundtable discussion on 'Decolonisation and Solidarity' as part of the conference, Borderlines IX: Seeking Solidarity and Wonder Through Performance, which took place at De Montfort University in Leicester, UK, on 30 June and 1 July 2022. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. Comparative Evaluation of Fe-Impregnated Filter Paper and Some Conventional Phosphorus Extractants for Assessing Phosphorus Availability in Some Amended Soils of Southwest Nigeria.
- Author
-
Aghorunse, A.C., Bankole, G.O., Odelana, T.B., Adewuyi, S., Adejuyigbe, C.O., and Azeez, J.O
- Subjects
- *
FILTER paper , *WOOD ash , *POULTRY manure , *SOILS , *PHOSPHORUS , *SOIL amendments , *CATTLE manure - Abstract
Iron-impregnated filter paper (Fe-Pi) was evaluated as phosphorus (P) extractant in four soils of Ogun state, southwest Nigeria in a screenhouse experiment. The experiments lasted for 8 weeks. Soil P contents were extracted at 0, 4, and 8 weeks after the incorporation of amendments (cattle manure, poultry manure, and wood ash) using Fe-Pi, Bray-1, Bray-2, Mehlich-1, Hunter, and Olsen extractant. Agronomic variables were taken fortnightly from grown maize plants and later harvested at 8 weeks, residual effects of the treatments were also evaluated. Maize dry matter weight (DMW) and P uptake were also measured. Results indicated that a linear relationship existed among the extractants with significant coefficient at p ≤.001. Fe-Pi established a strong relationship with the conventional extractants in the following order: Bray-1 (R2 = 0.99) > Bray-2 (R2 = 0.98) > Hunter (R2 = 0.96) > Mehlich-1 (R2 = 0.86) > Olsen (R2 = 0.82). Fe-Pi had a significant relationship with P uptake and DMW. Phosphorus uptakes under the animal manure amendments were statistically higher than uptake in control and woodash amended soils. Therefore, the study concluded that Fe-Pi was a good predictor of plant available P and had significant relationship with Bray-1, thus it could be considered for the estimation of soil available P in soils of southwest Nigeria. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
27. The Rally Effect of the COVID-19 Pandemic and the White Paper Movement in China.
- Author
-
Guan, Yue, Guang, Lei, Li, Lianjiang, and Liu, Yanchuan
- Abstract
The COVID-19 pandemic had an exceptionally long and consequential rally effect in China. Drawing on an eight-wave nationwide survey, this article shows that the Wuhan lockdown boosted public confidence in the central government. The persistence of the pandemic and the initial success of the zero-COVID policy sustained the enhanced trust in the central government for over two years. However, the rally effect did not dissipate as quietly as usual. As trust in the central government returned to the pre-pandemic level following the Shanghai lockdown, defiant protests collectively known as the White Paper Movement broke out. Angry protesters demanded the termination of the zero-COVID policy and called for accountability from the ruling party and its top leader. This article argues that while the rally effect lasted exceptionally long in the authoritarian country, it could not be prolonged indefinitely. Ultimately, the dissonance between the declining trust in the central government and the persisting restrictive measures provoked the protests. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
28. (Paper) weaving and poetry: Re-membering through Baradian theory.
- Author
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Pears-Scown, Naomi
- Abstract
AbstractThis work engages with Karen Barad’s philosophy and theory of agential realism through research practices of critical autoethnography and arts-based methods. The work explores how knowledge, memory, language, and experience remain alive within practitioners and inform who we become and how we inherit the stories involved in being educators and therapists. This paper presents two entangled research processes involving engagement with material artefacts related to the author’s professional identity development and practice as an arts therapist in Aotearoa, New Zealand. Through Barad’s theory of diffraction, engagement with and reassembling research artefacts supports a consideration of what can happen when we map and remember stories from different times and spaces in our lives. Elucidating and exploring the contours of memories and experiences can be helpful practices to engage in as narrative is the most potent mechanism for memory and teaching, and as therapists and educators, we are living through and practicing from the tangle of these narratives. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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29. To Read Loewald – Together: An Afterward to Papers Considering Temporality.
- Author
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Altstein, Rachel
- Subjects
- *
COVID-19 pandemic , *GROUP reading , *STAY-at-home orders - Abstract
This Afterward to a suite of papers studying and interpreting the work of Hans Loewald (Atsmon, Goldstein, Milch-Reich, Ofer, and Young, all this issue) takes the opportunity to reflect on why Loewald is currently in the air. It considers not only why Loewald, but why Loewald now, and, specifically, why Loewald especially in times of trouble? The meaning of an international Loewald Reading Group cohering during the time of Covid lockdown is emphasized, and the poignancy of the group originating as a way of continuing Lew Aron's teaching of Loewald, which was tragically cut short, is acknowledged and honored. Finally, the way that Loewald's writing challenges the reader to unpack a concentration of ideas (on the one hand) while relaxing and inviting them to dream freely and without judgment (on the other) is seen as a living out of the very theoretical precepts he evolved. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
30. The Reversal of Roe v. Wade and the Psychological Assault on Women: Discussion of Papers by Sally Bjorklund and Hillary Grill.
- Author
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Sherman-Meyer, Caryn
- Subjects
- *
CHOICE (Psychology) , *PSYCHOANALYSTS , *MISOGYNY , *PSYCHOANALYSIS , *MIND & body - Abstract
In their papers, Sally Bjorklund and Hillary Grill investigate the negative impact of the reversal of Roe v.Wade on women's ability to choose when and how to manage their bodies and minds. Bjorklund offers an historical perspective, while Grill presents personal and clinical material to illustrate how misogyny and male dominance are reinforced through the intersection of externally imposed laws, socially transmitted beliefs, and the perpetuation of such beliefs through models of mind that implicitly devalue women—models such as psychoanalysis. Iinvite psychoanalysts to continue to interrogate misogyny while also asking how our clinical work might challenge and change psychoanalytic theorizing about female development, theorizing that continues to pathologize women and valorize male dominance. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
31. Attorney demands for protected psychological test information: Is access necessary for cross examination or does it lead to misinformation? An interorganizational* position paper.
- Author
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Boone, Kyle Brauer, Kaufmann, Paul M., Sweet, Jerry J., Leatherberry, David, Beattey Jr, Robert A., Silva, Delia, Victor, Tara L., Boone, Rodney P., Spector, Jack, Hebben, Nancy, Hanks, Robin A., and James, Joette
- Subjects
- *
PSYCHOLOGICAL tests , *ACCESS to information , *CLINICAL psychologists , *MISINFORMATION , *CLINICAL neuropsychology , *LAWYERS - Abstract
Objective: Some attorneys claim that to adequately cross examine neuropsychological experts, they require direct access to protected test information, rather than having test data analyzed by retained neuropsychological experts. The objective of this paper is to critically examine whether direct access to protected test materials by attorneys is indeed necessary, appropriate, and useful to the trier-of-fact. Method: Examples are provided of the types of nonscientific misinformation that occur when attorneys, who lack adequate training in testing, attempt to independently interpret neurocognitive/psychological test data. Results: Release of protected test information to attorneys introduces inaccurate information to the trier of fact, and jeopardizes future use of tests because non-psychologists are not ethically bound to protect test content. Conclusion: The public policy underlying the right of attorneys to seek possibly relevant documents should not outweigh the damage to tests and resultant misinformation that arise when protected test information is released directly to attorneys. The solution recommended by neuropsychological/psychological organizations and test publishers is to have protected psychological test information exchanged directly and only between clinical psychologist/neuropsychologist experts. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
32. A mixed-integer programming model for an integrated production planning problem with preventive maintenance in the pulp and paper industry.
- Author
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Avilés, Francisco N., Etchepare, Renato Maynard, Aguayo, Maichel M., and Valenzuela, Mario
- Subjects
- *
PRODUCTION planning , *PAPER industry , *MIXED integer linear programming , *SETUP time , *PULP mills , *MANUFACTURING processes - Abstract
Production planning and scheduling in the pulp and paper industry can be very challenging. In most cases, practitioners address the production planning process manually, which is time-consuming and sub-optimal. This study deals with production planning encountered in a pulp mill company involving different wood species, parallel heterogeneous lines, inventory limits, sequence-independent setup times and preventive maintenance. To tackle the problem, an efficient mixed-integer formulation is proposed that optimizes when, where and how much to produce of different wood species and schedules preventive maintenance to minimize the total setup times. Several computational experiments are conducted to solve a case study in a pulp mill company in Chile. The results show the capability of the model to support the decision-making process in the pulp and paper industry, providing an efficient tool for practitioners to solve the problem in a reasonable amount of time. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
33. Characterization of lipophilic extractives in the wood of anthocephalus cadamba and anthocepalus macrophyllus from progeny trial.
- Author
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Arisandi, Rizki, Valahatul Ihda, Fatra, Nirsatmanto, Arif, Sunarti, Sri, Rimbawanto, Anto, Herawan, Toni, Khomsah Kartikawati, Noor, Haryjanto, Liliek, Insiana Putri, Asri, Lestari, Fajar, and Lukmandaru, Ganis
- Subjects
- *
FATTY alcohols , *PAPER pulp , *WOOD products , *FATTY acids , *PAPER products , *LINOLEIC acid , *OLEIC acid - Abstract
This study aims to determine the lipophilic component that affects the quality of pulp and paper products in wood of 10-year-old Anthocephalus cadamba (families 23, 11 and 6) and 5-year-old Anthocepalus macrophyllus (families 75, 85 and 2). The results showed that the main group of compounds that appeared frequently and were identified in the lipophilic fraction were fatty acids (palmitic, oleic, linoleic and stearic acids), fatty alcohols (eicosanol, heneicosanol and tetracosanol), sterols (β-sitosterol and campasterol), hydrocarbons (hexadecane, tricosene and cyclotetracosane), aldehydes, alongside minor amounts of triterpenoid. F11 and F2 can be promoted as raw materials for pulp and paper, while F6 and F75 are not recommended because of the high levels of lipids such as sterols, triterpenoids, hydrocarbons, fatty acids, and fatty alcohols. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
34. Distribution of In-plane Physical Properties of Handmade Xuan Paper: Revealing the Effects of the Sheet Forming Process and the Folded State on Handmade Xuan Paper.
- Author
-
Qiao, Chengquan, Gong, Yuxuan, and Gong, Decai
- Subjects
- *
PHYSICAL distribution of goods , *CONSCIOUSNESS raising , *FIBER orientation - Abstract
Xuan paper is one of the most famous handmade papers in China and is an important paper for conservation. However, the evenness of Xuan paper has not yet received much attention. In this study, the distribution of the in-plane grammage and mechanical properties of Xuan paper are measured. It is found that the distribution of the in-plane grammage and mechanical properties of Xuan paper is uneven. In the handmade direction, the grammage and mechanical properties of Xuan paper are overall largest in the lower area, followed by the upper and middle areas. The sheet forming process of Xuan paper has an important effect on the distribution of in-plane grammage, mechanical properties, and fiber orientation of Xuan paper. The folded state has a negative effect on the mechanical properties of the folded area of Xuan paper. This study will help raise awareness of the unevenness in physical properties of Xuan paper, which is important in both conservation and research applications. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
35. A review of recent infrared spectroscopy research for paper.
- Author
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Xia, Jingjing, Xiong, Yanmei, Min, Shungeng, and Li, Jinyao
- Subjects
- *
INFRARED spectroscopy , *MID-infrared spectroscopy , *PAPER pulp , *DOCUMENT imaging systems , *CHEMICAL properties , *TECHNICAL reports - Abstract
For many centuries, paper is the main material for recording cultural achievements all over the world. Infrared (IR) spectroscopy is an essential analytical tool for the structural analysis of paper and pulp chemistry. This review article introduced recent technical and scientific reports in terms of IR spectroscopy in the paper science and application, where interest had increased during the last couple decades (2000–2022). Five parts were described according to the application of IR spectroscopy: the analysis of cellulose and its derivatives, estimation the date of documents, identification the origins of fiber or paper, specification the chemical and physical properties of paper, and characterization the new materials of paper. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
36. Hitler Youth Quex: A Guide for the English-Speaking Reader: WILLIAM GILLESPIE, 2022. Potts Point – Australia, German Films Dot Net, pp. x + 388, illus. and bibliography, $ 49.95 (paper).
- Author
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Hochscherf, Tobias
- Subjects
- *
BIBLIOGRAPHY , *YOUNG adults , *GERMANS , *NATIONAL socialism , *WEIMAR Republic, 1918-1933 - Abstract
"Hitler Youth Quex: A Guide for the English-Speaking Reader" is a book by William Gillespie that explores the infamous propaganda film made during the early years of the Nazi regime. The book provides new insights into the film and its historical context, drawing from the author's extensive collection of German film materials. While the book primarily focuses on the German perspective, it offers valuable primary sources and encourages critical examination of the topic. It is recommended for scholars and students studying film history, propaganda, or German Third Reich cinema. [Extracted from the article]
- Published
- 2024
- Full Text
- View/download PDF
37. Alterations of Lacrimal Sac Microbiota in Failed Dacryocystorhinostomy: The Lacriome Paper 6.
- Author
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Ali, Mohammad Javed
- Published
- 2024
- Full Text
- View/download PDF
38. “Paper More Precious Than Blood”: Chinese Exclusion Era Identity Documentation Processes and Racialization of Identity Data.
- Author
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Nham, Kai
- Abstract
This project interrogates the United States’ national fixation on the answer to the question:
Who are you? In this article, it is posed that identity documentation practices arising out of the Chinese Exclusion Act era cast identity as an empirical and immutable phenomenon, specifically in response to the racialization of American-born Chinese settlers as duplicitous, through the mechanisms that information is collected, the actual information itself, and the cross-references or connections created between cases. Through tracing this lineage, racialized identification data is identified and theorized as part of hegemonic data regimes. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
39. Migration studies of chloropropanols from paper straws: an improved method using GC-MS/MS.
- Author
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Yuan, Rui, Ding, Wenbo, Sui, Haixia, and Liu, Wei
- Subjects
- *
DRINKING straws , *GAS chromatography/Mass spectrometry (GC-MS) , *NUTRITIONAL requirements , *FOOD industry , *STANDARD deviations , *CARDBOARD - Abstract
An optimised method was established for the determination of four chloropropanols in paper straws, namely 1,3-dichloropropan-2-ol(1,3-DCP), 2,3-dichloropropan-1-ol (2,3-DCP), 3-monochloropropane-1,2-diol (3-MCPD) and 2-monochloropropane-1,3-diol (2-MCPD). After extraction with a food simulant, purification with matrix solid phase dispersion (MSPD), and derivatisation using heptafluorobutyrylimidazole (HFBI), the chloropropanols were analysed by gas chromatography–tandem mass spectrometry (GC-MS/MS), and quantified with a deuterated internal standard. Under the optimised conditions, the limit of detection (LOD) was 0.200 µg/L for the four target compounds. The recoveries were in the range of 71.4% – 119.4% with relative standard deviations (RSDs) of 0.4% – 9.9%. The method fulfilled the requirements of the European regulations for the quantification of 3-MCPD and 1,3-DCP. Fifteen paperboard straws were tested using the proposed method. The results showed that 1,3-DCP and 3-MCPD exhibited the highest detection rate among the four chloropropanols tested (93.3%). the method can be used to detect chloropropanol contamination in paperboard products, and further to guide food manufacturers to reduce the levels of chloropropanols in paperboard food contact materials. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. Highly Sensitive Electrochemical Determination of Lead(II) by Double Stranded DNA (dsDNA) with a Carbon Paper/Reduced Graphene Oxide (CP/rGO) Substrate by Differential Pulse Anodic Stripping Voltammetry (DPASV).
- Author
-
Zhang, Ziwei, Yuan, Jin, Zheng, Huiling, Liu, Zelin, Lu, Guangqiu, Huang, Qilin, and Liu, Meichuan
- Subjects
- *
CARBON paper , *GRAPHENE oxide , *DNA , *VOLTAMMETRY , *ELECTROCHEMICAL sensors - Abstract
Lead pollution may cause serious damage to environment safety and human health, especially to children's growth. In this work, by using double stranded DNA (dsDNA) as the recognition element, a simple and effective electrochemical DNA sensor has been developed on a full carbon-based substrate, reduced graphene oxide/carbon paper (rGO/CP), to accomplish the rapid, sensitive and selective determination of Pb2+. Carbon paper (CP) provides a suitable substrate for the sensor with high portability and low cost, while rGO is easily electrodeposited onto CP and serves as both the signal amplification element and the molecular bridge between DNA and CP. Because of its high specific surface area and unique conjugated giant π structure, rGO tightly binds with DNA through π-π stacking and hydrophobic interactions, thereby providing loading of high quantities of DNA. The specific coordination between DNA and Pb2+ further improves the sensitivity of the sensor. The results demonstrate that rapid electrochemical enrichment of Pb2+ is achieved using the constructed CP/rGO/DNA electrode with a linear relationship between the peak current and the concentration of Pb2+ from 1 pM to 100 pM and a detection limit of 1 pM. In addition, this approach shows good selectivity and satisfactory repeatability for river water analysis. A promising sensitive, low-cost, simply-fabricated, and portable full carbon-based electrochemical biosensing platform has been therefore provided for lead determination. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
41. Shredding Paper: The Rise and Fall of Maine's Mighty Paper Industry, by Michael Hillard (Ithaca: Cornell, 2021).
- Author
-
McIntyre, Richard
- Subjects
- *
PAPER industry , *SOCIAL conflict , *PAPER mills , *CORPORATE governance , *STEEL industry - Abstract
Michael Hillard's Shredding Paper: The Rise and Fall of Maine's Mighty Paper Industry is both a labor history of the paper industry and a political economy of corporate governance and class struggle in the United States. As a labor historian, Hillard has compiled thousands of hours of interviews with paper-industry workers and managers. As a political economist, he persuasively argues that contests over the distribution of surplus from the 1960s forward and shifts in paper-industry ownership led to the strike wave that began in the '60s and spread to every paper mill in Maine by the late 1980s. Rapacious practices by out-of-state owners challenged workers' moral compass as much as their material existence. Responding, paper workers developed a folk political economy and even a folk Marxism, creating the foundation for challenging working-class support for regressive economics. This review provides context for Hillard's claim while partially challenging it in a different context, the United States steel industry. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
42. Innovative design of multi-contradiction systems based on the function-structure model.
- Author
-
Wang, Fanfan, Tan, Runhua, Peng, Qingjin, Wang, Kang, and Sun, Jianguang
- Subjects
- *
ENGINEERING design , *PAPER products , *PRODUCT design , *METHODS engineering - Abstract
Innovative design of complex systems faces multi-contradiction (MC). The existing methods to solve MC are mainly based on the General Theory of Powerful Thinking (OTSM) which is independent of the classical Engineering Design Method (ED) to form the process model, they cannot inherit the accumulated knowledge and advantages of ED. This paper proposes a product innovation design process model for MC based on the function-structure model. It starts with an initial scenario of the system to build the function-structure model and MC network based on the root contradiction analysis. The network structure entropy and function importance decision methods are introduced for the trimming target confirming. The key contradiction-node is identified and solved by strategies of trimming based on internal and external resources of the system. The function-structure model in ED and trimming in TRIZ are combined to form an innovative design process for MC systems. The proposed method is evaluated in a case study of an innovative design of the girder bridge erector. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. Poly(vinyl alcohol)/Carboxymethyl Cellulose/Cellulose nanofibrils nanocomposite as coating for food packaging paper.
- Author
-
Nizardo, Noverra Mardhatillah, Sugandi, Noor Athifah Dzahyrah, and Handayani, Aniek Sri
- Abstract
Cellulose nanofibrils (CNF) can be modified to be used as a coating on food paper packaging. Previous research on PVA/CNF composites showed a low viscosity, which impacted their performance on the coating paper process. To overcome this problem, a thickening agent, such as carboxymethyl cellulose (CMC), is needed. In this work, the effect of CMC on PVA/CMC/CNF nanocomposites was investigated by varying the concentrations of CMC with PVA/CMC and CNF ratio of 80:20 and 90:10. The nanocomposites were characterized by their physical and tensile properties which could affect their coating performance. Moreover, the coating process was conducted on paper and the performances of the coated paper were studied. The results showed that the increase in CMC concentration led to an increasing viscosity and good zeta potential, suggesting good dispersion. Moreover, the addition of CMC improved the tensile properties of PVA/CMC/CNF nanocomposites. However, SEM analysis of PVA/CMC-1:CNF (80:20) revealed the occurrence of agglomeration which might influence the performance of the coated paper. Interestingly, PVA/CMC-1:CNF (80:20) had an excellent water resistance, with the lowest Cobb60. Moreover, the addition of CMC 1 wt% increased WVTR, which remained lower than the blank sample. Meanwhile, PVA/CMC-2:CNF (80:20) demonstrated the best performance in the oil absorption and tearing resistance test. In summary, the addition of CMC can effectively improve the physical and tensile properties of the PVA/CMC/CNF, as well as the barrier properties and tear strength of the PVA/CMC/CNF coated paper. The results demonstrate the potency of this material as a coating for food packaging paper. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. Smartphone-Based Colorimetric Microfluidic Paper-Based Analytical Device for On-Site Detection of Calcium Ions in Milk Samples.
- Author
-
Ajayi, David Taiwo and Teepoo, Siriwan
- Abstract
AbstractMilk is a major dietary source of calcium; thus, accurate and precise quantification of calcium in milk and other dairy products is necessary for quality control. Conventional instrumental methods are sensitive and accurate but require expensive instrumentation, sample pretreatment, skilled personnel, and a long detection time. Herein, a microfluidic paper-based analytical device (µPAD) was developed to quantify calcium ions (Ca2+) in milk using a smartphone as a detector. The method utilized a complexometric reaction between Ca2+ and ethylene diamine tetraacetic acid with murexide as an indicator. The response was the average color intensity at the detection zones measured using the Color Picker application. The proposed µPAD exhibited a good linear detection range (1 to 10 mM), a low detection limit of 0.42 mM, and a short analysis time of 2 min. The determination of Ca2+ in milk samples using the proposed µPAD was consistent with a potentiometric method. The proposed µPAD demonstrates many advantages, including rapid detection, acceptable accuracy, low cost, low sample volume, and suitability for on-site quantification of Ca2+ in real samples. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
45. Paper-Based Colorimetric Sensor for Hydrogen Peroxide Based Upon a Graphene Oxide/Platinum-Cobalt Nanocomposite.
- Author
-
Qu, Yanping, He, Wen, Li, Shuhong, Liu, Tenghui, Wang, Sirui, Yin, Qiyue, Luo, Yuyue, and Zhu, Zhenpeng
- Abstract
AbstractThe peroxidase-like properties of a graphene oxide/platinum-cobalt nanocomposite and the rapid color development mechanism of 3,3′,5,5′-tetramethylbenzidine (TMB) through the decomposition of ·OH from H2O2 were utilized to prepare a nonlabelled, simple, and sensitive paper-based colorimetric sensor. This sensor allows visualization of the results and instantaneous detection, enabling quantitative measurement of H2O2. The graphene oxide/platinum cobalt composite was synthesized using a two-step procedure. Its properties were investigated using transmission electron microscopy (TEM), Raman spectroscopy, and energy-dispersive X-ray spectroscopy (EDS). The composite was subsequently transferred onto a paper substrate to create the colorimetric sensor. The optimal catalytic conditions were a composite concentration of 201.17 µg/mL, a color development time of 3 min, a TMB concentration of 2 mmol·L−1, and a pH of 4. Using the optimal conditions, the paper-based colorimetric sensor has a linear range for H2O2 from 1.0 × 10−5 to 0.1 mol·L−1, with a limit of detection of 1.0 × 10−6 mol·L−1 which is comparable or better than comparable methods. This paper-based colorimetric sensor has potential applications for the rapid determination of hydrogen peroxide. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Airborne power ultrasound for paper drying: an experimental study.
- Author
-
Noori O'Connor, Zahra and Yagoobi, Jamal S.
- Subjects
- *
ULTRASONIC imaging , *FACTORIAL experiment designs , *PERMEABILITY measurement , *DOPPLER ultrasonography , *ANALYSIS of variance , *ENERGY consumption , *AIRBORNE-based remote sensing - Abstract
A novel approach for paper drying using airborne ultrasound technology is presented. A unique experimental setup is developed, and a systematic study is conducted using 23 factorial design of experiments and Analysis of Variance. Three controlling factors are considered in the experiments including the initial moisture content, basis weight and refining condition. The outcome of the experiments is compared to a previous work on direct-contact ultrasonic drying of paper. The results confirm that similar to direct-contact, for airborne ultrasonic drying, the basis weight/thickness of the sample is the most important factor in ultrasonic drying and it is followed by the effect of initial moisture content. Using linear regression model, a correlation for predicting the total time of ultrasonic drying is provided. Quality of the dried samples is evaluated, and the permeability measurements confirmed the effect of pore characteristics on ultrasonic drying. The analysis for energy consumption reveals that airborne ultrasonic drying is more efficient at higher moisture contents. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. An American Philanthropist in Istanbul, 1920-1929: Anna Van Schaick Mitchell's Albums, Photographs and Papers at the Hoover Institution Library and Archives.
- Author
-
Kasinec, Edward
- Subjects
- *
PHOTOGRAPHS , *LIBRARIES , *WAR , *ARCHIVES , *SCRAPBOOKS , *RUSSIANS , *REFUGEES - Abstract
This note is based on hitherto untapped visual resources (photographs, presentation albums, and scrapbook) on post-World War I Russian refugees in Istanbul that belong to the Anna Mitchell Papers, which were gifted to the Hoover Institution Library and Archives at Stanford University in 1967. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Determination of Acrylic Resin Monomers in Food Packaging Paper by Gas Chromatography – Tandem Mass Spectrometry (GC-MS/MS) with Formic Acid as a Protective Agent.
- Author
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Wang, Xuan, Zhu, Xiang, Xu, Wenjun, Shen, Jianmin, Xu, Jijun, Chen, Lina, Wang, Lei, and Xiang, Jianing
- Subjects
- *
TANDEM mass spectrometry , *ACRYLIC resins , *PAPER chromatography , *FOOD packaging , *FORMIC acid , *GAS chromatography , *GAS chromatography/Mass spectrometry (GC-MS) - Abstract
Gas chromatography – tandem mass spectrometry (GC-MS/MS) using formic acid as a protective agent is reported for the determination of acrylic resin monomers in food contact packaging paper. The analytes were extracted by ethanol mixed with formic acid with 2-phenylethyl propionate as the internal standard. The extract was separated by a 6% cyanopropylbenzene-94% dimethylsiloxane ultra-inert chromatographic column and analyzed by GC-MS/MS in multiple reaction monitoring (MRM) mode. 13 acrylic resin monomers including acrylic acid, styrene, and acrylic ester were separated. The procedure was successfully applied for the analysis of real samples. The procedure provided a linear calibration range with detection limits from 0.16 to 0.46 mg kg−1. The mean recoveries were from 88.1% to 100.9% with relative standard deviations less than 5.4%. The residual acrylic resin monomers in packaging paper were primarily from printing base paper and varnish. Of the acrylic resin monomers, the monomers except for butyl acrylate and 2-ethylhexyl acrylate showed low migration rates. The method provides high sensitivity and good reproducibility with simple pretreatment, demonstrating application for monitoring acrylic resin monomers in food contact packaging paper. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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49. Enhancing carbon fiber reinforced aluminum laminates with cellulose paper interlayers: experimental characterization of tensile, flexural, and interlaminar fracture toughness.
- Author
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Üstün, Tugay and Saraloğlu Güler, Ebru
- Abstract
The mechanical properties of fiber metal laminates (FML) are influenced by several various factors. Interface adhesion plays a particularly crucial role in interlaminar strength. Enhancing the interlaminar strength of carbon fiber reinforced aluminum laminate (CARALL) composites present a persistent challenge due to inherent weaknesses between metal and composite elements. Therefore, this study focuses on improving the interlaminar performance of CARALL composites by introducing cellulose paper interlayer at the metal/composite interface. The cellulose paper interlayer offers the advantage of being cost-effective and sustainable. Cellulose paper-interleaved CARALL composites were fabricated by vacuum bagging method and exhibited noteworthy improvements in mechanical properties. Comparative analysis with pristine samples revealed substantial enhancements, including a 15% increase in tensile strength, a remarkable 42% improvement in flexural strength, and a significant enhancement in mode-I fracture toughness by 65%. Furthermore, the cellulose paper interleaving played a crucial role in stabilizing fracture formation at the fiber-matrix interface, with mode II fracture toughness witnessing a 3% increase. Visual examination revealed the underlying toughening processes occurring in the interfacial area. This innovative approach of interleaving laminated composites with cellulose paper emerges as a sustainable and effective strategy, demonstrating the potential to fortify and toughen the interlaminar zones of CARALL composites. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. The <italic>Mothers of Us All</italic>: Extracts, with Comments, from the “Yellow Catalogue” Published by the Milan Women’s Bookstore – Paper No. 2: From Novels to the Figures, Themes and Strategies for a Political Practice.
- Author
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Niccolai, Silvia
- Abstract
AbstractThe present paper is the second of three, constituting a whole project of translation and commentary composed of translated extracts from the “
Catalogo n. 2 – Le madri di tutte noi ,” published by the Milan Women’s Bookstore in 1982. The idea for the project was conceived by Silvia Niccolai and Angela Condello, who selected the extracts and provide the written commentaries on the original texts.The Yellow Catalogue , in which we find collective discussions, pages of personal diaries and, overall, the enterprise of a group of women debating over their literary symbolic mothers (who to read? And why?), is an interesting example of political use of literature. After forty decades from its publication, it still proposes inspiring and fresh suggestions for feminist political action and critique, while representing an interesting occasion for researching the philosophical roots of Feminism. The projects is composed like follows: Paper No1,In search of a feminine symbolic , by Angela Condello, already published on Law & Litterature and Paper No2,From Novels to the Figures, themes and strategies for a political practice . Paper No 2 is structured in two parts. Part One is the article here presented (Part One. “Interest in Reality.” For every woman’s autobiography ) written by Silvia Niccolai; Part Two is the articleSexual difference: an occasion for being , coauthored by Angela Condello and Silvia Niccolai, which will be published in a forthcoming issue of this Journal. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
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